ARTICULATING OUTDOOR FURNITURE

Abstract

Adjustable outdoor furniture includes a fixed frame, a moveable frame attached to and moveable with respect to the fixed frame and an articulation unit separate from the fixed frame and moveable frame and releasably attachable to at least one of the fixed frame and the moveable frame. The articulation unit has a first engagement member engaging the fixed frame at one or more fixed frame locations, a second engagement member engaging the moveable frame at one or more moveable frame locations and a drive mechanism disposed between the first engagement member and the second engagement member to move the moveable frame with respect to the fixed frame.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims priority to U.S. Provisional Patent Application No. 62/512,917 filed May 31, 2017, the entire contents of which is incorporated herein by reference.

TECHNICAL FIELD

Embodiments of the subject matter disclosed herein relate to adjustable and articulating outdoor furniture.

BACKGROUND

Outdoor furniture is constructed for direct or indirect exposure to the elements, e.g., wind, rain, snow, sunlight, dirt and sand. Therefore, the materials used to construct outdoor furniture are selected to be resistant to damage or degradation when exposed to those elements. These materials include metals, plastics, wood and wicker and are arranged as the framing, support surfaces and cushions of the outdoor furniture. In addition to this framing of the outdoor furniture having a fixed frame and shape, the framing is also arranged to provide for adjustment in the position of, for example, a foot section and a head section of the outdoor furniture. This type of adjustable or articulating outdoor furniture is similar to the adjustments provided by an adjustable or articulating bed.

Adjustable or articulating beds provide selectable adjustment of the lower or foot portion and upper or head portion of a bed or a mattress disposed on the bed from a traditional flat or horizontal position. Adjustable beds, in order to provide the desired articulation, include an adjustable bed foundation supported within a fixed bed frame. The adjustable bed foundation includes the operational portions of the adjustable bed, which include fixed frame portions and articulating portions that are moveably attached to the fixed frame portions. Articulating beds, however, are typically not manually operated by the occupant but are automated or mechanized. This automation is achieved by actuators and motors provided between the fixed frame portions and the articulating frame portions that move portions of the adjustable bed foundation to the desired positioning.

Conventional articulating beds, however, are configured and constructed to be used indoors or in controlled environments. Adjustable beds are not configured to be used outdoors or in environments exposed to water, moisture, dirt and sand. In addition, conventional articulating beds require a source of electrical power for the motors, actuators and control electronics that provide the operational functionality of the adjustable bed. This source of power is typically conventional 110/120 VAC power, and the adjustable bed is plugged into an electrical outlet providing this source of power. Therefore, adjustable beds need to be located adjacent to a suitable source of electrical power. This makes using conventional adjustable beds in remote locations, wet locations and locations without a source of conventional 110/120 VAC power difficult to impossible. Incorporating similar mechanized articulation into outdoor furniture requires overcoming the limitations of conventional articulating beds.

SUMMARY

Embodiments are directed to adjustable furniture or an adjustable outdoor furnishing configured to be operated outdoors in applications directly or indirectly exposed to environmental conditions, in remote locations that do not contain an available source of suitable electric power or in locations where the use of 110/120 VAC power is not preferred. In addition, articulation is provided to a variety of outdoor furniture having different types of framing. In one embodiment, the components that provide for articulation of the outdoor furniture can be fixedly integrated into the framing of the outdoor furniture. Alternatively, mechanized articulation can be retrofitted onto existing outdoor furniture and can be removed and transferred between pieces of outdoor furniture.

The adjustable outdoor furnishing combines a piece of outdoor furniture with an articulation unit that in one embodiment is arranged as an articulating furniture frame. The piece of outdoor furniture includes fixed furniture frame components, e.g., a central seating area, and moveable frame components attached to at least one of the fixed frame components, e.g., adjustable foot or back sections. The articulation unit is connected between the fixed frame components and the moveable frame components.

The articulation unit includes all framing, e.g., steel structure, and electro-mechanical components, e.g., motors, actuators, control electronics and power sources, to provide motorized adjustable movement between the fixed frame components and the moveable frame components. In one embodiment, the electro-mechanical components include a remote control and outdoor battery casing and actuator assemblies. In one embodiment, the electro-mechanical components operate at a DC voltage such as 5 or 12 VDC. All electro-mechanical components are protected against environmental elements such as water and moisture, i.e., are waterproofed. In addition, the components of the articulation unit are protected against dust, sand or other grit, corrosion and chemical exposure, e.g., exposure to oxidants such as chlorine in a swimming pool environment.

In one embodiment, the articulation unit is integrated into the outdoor furnishing as the outdoor furnishing is being manufactured. Therefore, the articulation unit is an integrated component of the adjustable outdoor furnishing and is not removable. In addition, the articulation unit is configured specifically for a given piece, e.g., size and shape, of outdoor furniture. In another embodiment, the articulation unit is an independent structure that is separate from the outdoor furnishing. The articulation unit is attached to existing or separately manufactured outdoor furnishings to adapt the existing outdoor furnishings into adjustable or articulating outdoor furnishings. The articulation unit is attached to the fixed frame components and moveable frame components. In addition, the articulation unit can be removed from the fixed and moveable frame.

The articulation unit can be adjusted to fit a given piece of outdoor furniture. For example, the width of the frame and engagement members of the articulation unit are adjustable to the width of the components of the outdoor furnishing to which it is attached. Therefore, the articulation unit is adjustable and can accommodate a plurality of different types and styles of outdoor furnishings. In one embodiment, the articulation unit includes at least one switch to provide for up and down adjustment of the moveable furniture components. In one embodiment, the articulation unit includes two switches, each with an up and down adjustment. Each one of the switches is located on or adjacent to one of the arms of the outdoor furnishing.

Exemplary embodiments are directed to an adjustable outdoor furnishing having a fixed frame, a moveable frame attached to and moveable with respect to the fixed frame, and an articulation unit separate from the fixed frame and moveable frame and releasably attachable to at least one of the fixed frame and the moveable frame. In one embodiment, the adjustable outdoor furnishing is a chair. The fixed frame is a seat portion of the chair, and the moveable frame is an upper body portion of the chair. In one embodiment, the adjustable outdoor furnishing is a lounge chair. The fixed frame is a lower body support portion of the lounge chair, and the moveable frame is an upper body portion of the lounge chair. In one embodiment t, the adjustable outdoor furnishing is a lounge chair. The fixed frame is a seat portion of the lounge chair, and the moveable frame is an upper body portion or a leg portion of the lounge chair.

In one embodiment, the articulation unit includes a first engagement member engaging the fixed frame at one or more fixed frame locations, a second engagement member engaging the moveable frame at one or more moveable frame locations and a moveable or extensible member disposed between the first engagement member and the second engagement member to move the moveable frame with respect to the fixed frame. Suitable extensible members include a hydraulic piston, a pneumatic piston, a gas spring, a gas lift cylinder and a locking gas lift cylinder. In one embodiment, the extensible member is a linear actuator.

In one embodiment, the adjustable outdoor furnishing, and in particular the moveable frame of the outdoor furnishing includes an upper body portion moveable frame and a leg portion moveable frame. The adjustable outdoor furnishing includes a first articulation unit disposed between the upper body moveable frame and the fixed frame and a second articulation unit disposed between the leg portion moveable frame and the fixed frame.

In one embodiment, at least one of the fixed frame locations are set locations on the fixed frame and the moveable frame locations are set locations on the moveable frame. In one embodiment, the first engagement member and the second engagement member are releasable members. In one embodiment, the extensible member is pivotally attached to the first engagement member and the second engagement member. In one embodiment, the second engagement member includes at least one roller in contact with the moveable frame.

In one embodiment, the articulation unit also includes a cam disposed between the extensible member and at least one of the first engagement member and the second engagement member. The cam translates linear motion of the extensible member to pivoting motion between the fixed frame and the moveable frame. In one embodiment, the cam has a pivot joint with a fixed portion attached to the first engagement member or the fixed frame and a rotating portion attached to the fixed portion. The cam also includes a pivot arm in contact with the rotating portion, the second engagement member and the extensible member.

In one embodiment, the first engagement member includes an attachment frame containing a plurality of fasteners to secure the attachment frame to the fixed frame at the fixed frame locations such that the attachment frame does not move with respect to the fixed frame. In addition, the second engagement member contains an articulating frame rotatably attached to the attachment frame and a plurality of rollers attached to the articulating frame and engaging the moveable frame at one of the moveable frame locations. Each moveable frame location changes as the articulating frame moves with respect to the attachment frame. In one embodiment, the first engagement member has a plurality of brackets extending from the attachment frame. Each bracket has a circular bore. The articulating frame includes a cylindrical tube passing through the circular bore of each bracket to provide rotatable attachment of the articulating frame to the attachment frame. In addition, the articulation unit includes at least one arm attached to the cylindrical tube and at least one additional location on the articulating frame. The brackets, cylindrical tube and arm include a cam that translates linear motion of the extensible member to pivoting motion between the fixed frame and the moveable frame.

Exemplary embodiments are also directed to an adjustable outdoor furnishing having a fixed frame, a moveable frame attached to and moveable with respect to the fixed frame and an articulation unit separate from the fixed frame and moveable frame. The articulation unit includes a first engagement member engaging the fixed frame at one or more fixed frame locations. Each fixed frame location is a set location on the fixed frame. A second engagement member engages the moveable frame at one or more moveable frame locations. Each moveable frame location changes as the moveable frame moves with respect to the fixed frame. An extensible member is disposed between the first engagement member and the second engagement member to move the moveable frame with respect to the fixed frame.

In one embodiment, the first engagement member includes a plurality of fasteners to secure the articulation unit to the fixed frame at the fixed frame locations and each fastener comprises a releasable fastener. In one embodiment, the second engagement member contains a roller in contact with the moveable frame at each moveable frame location. In one embodiment, the articulation unit also includes a cam having a pivot joint with a fixed portion attached to the first engagement member or the fixed frame and a rotating portion attached to the fixed portion. The cam includes a pivot arm in contact with the rotating portion, the second engagement member and the extensible member. The cam translates linear motion of the extensible member to pivoting motion between the fixed frame and the moveable frame.

Exemplary embodiments are also directed to an articulation unit for attachment to an outdoor furnishing. The articulation unit includes a first engagement member with at least one fastener to engage framing members at a fixed frame location. The fastener is a releasable fastener. A second engagement member includes at least one roller to engage framing members at a moveable frame location. In addition, an extensible member is disposed between the first engagement member and the second engagement member to move the second engagement member with respect to the first engagement member.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate one or more embodiments and, together with the description, explain these embodiments. In the drawings:

FIG. 1 is a schematic representation of an embodiment of an adjustable outdoor furnishing in a flat position;

FIG. 2 is a schematic representation of an embodiment of an articulation unit;

FIG. 3 is a view through line 3-3 of FIG. 2;

FIG. 4 is a schematic representation of an embodiment of an adjustable outdoor furnishing in an articulated position;

FIG. 5 is a schematic representation of an embodiment of an adjustable outdoor furnishing having two articulating frames and two articulation units;

FIG. 6 is a top perspective view of an embodiment of an adjustable outdoor furnishing;

FIG. 7 is a bottom perspective view of the adjustable outdoor furnishing;

FIG. 8 is an end view of the adjustable outdoor furnishing with the moveable frame in an up position;

FIG. 9 is a first side view of the adjustable outdoor furnishing;

FIG. 10 is a second side view of the adjustable outdoor furnishing;

FIG. 11 is a perspective view from the bottom of the adjustable outdoor furnishing;

FIG. 12 is a partial view of the adjustable outdoor furnishing showing the first engagement member of the articulation unit attached to the fixed frame;

FIG. 13 a partial view from the bottom of the adjustable outdoor furnishing showing the first engagement member attached to the fixed frame of the adjustable outdoor furnishing; and

FIG. 14 is a partial view from the bottom of the an adjustable outdoor furnishing showing the second engagement member of the articulation unit attached to the moveable frame.

DETAILED DESCRIPTION

The following description of the embodiments refers to the accompanying drawings. The same reference numbers in different drawings identify the same or similar elements. The following detailed description does not limit the invention. Instead, the scope of the invention is defined by the appended claims.

Reference throughout the specification to “one embodiment” or “an embodiment” means that a particular feature, structure or characteristic described in connection with an embodiment is included in at least one embodiment of the subject matter disclosed. Thus, the appearance of the phrases “in one embodiment” or “in an embodiment” in various places throughout the specification is not necessarily referring to the same embodiment. Further, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.

Referring initially to FIG. 1, a representation of an exemplary embodiment of an adjustable outdoor furnishing 10 showing the various components of the adjustable outdoor furnishing is illustrated. As used herein, an outdoor furnishing refers to any type of furniture intended for use in an environment that is directly or indirectly exposed to the outdoors. Therefore, these furnishings can be used, for example, on lawns, beaches, decks, pool decks, boats, roof tops, porches and screened porches. In addition, the furnishings are adjustable in that at least of portion of the furnishing can be moved or adjusted relative to the other portions of the furnishing. The furnishings include foldable or collapsible furniture. Suitable adjustable outdoor furnishings include, but are not limited to, chairs, lounges, benches, gliders, sofas, love seats, swings, cots, adirondack-style chairs and recliners. The furnishings are constructed from materials suitable for an outdoor environment including metals such as aluminum and stainless steel, plastics, wood, for example, naturally rot resistant woods and treated woods, and wicker.

The adjustable outdoor furnishing includes a fixed frame 11 and at least one moveable frame 12 attached to and moveable with respect to the fixed frame. The fixed frame and moveable frame in combination constitute the furnishing framing. The fixed frame includes the fixed support elements. These fixed support elements can include, for example, the legs 14 and side and end rails 13. The fixed support elements can also include arms and the connecting members and fasteners that secure the framing members to each other. The fixed support elements also include the fixed support surface 15 that contacts a person using the adjustable outdoor furnishing. These fixed support surfaces can be rigid and flat surfaces or flexible surfaces, for example, sling-type fabric surfaces. In addition, the fixed support surface can include upholstery and padding. In general, the fixed support elements include the seating and support elements that do not move relative to each other. As illustrated in FIG. 1, the fixed support elements are positioned to support the lower body. However, the fixed support elements could also include supports for the arms or portions of the upper body. In addition, the fixed support elements can be located only in the seating area of the furnishing, e.g., not under the legs.

The moveable frame includes moveable support elements that, while typically being fixed or rigid with respect to each other, move, adjust or articulate with respect to the fixed frame and the fixed support elements to provide the desired adjustment, seating position or reclining position. Any furnishing can have one or more fixed frames and one or more moveable frames. The moveable support elements include the side and end rails 16 that form the moveable frame. The moveable support elements also include the moveable support surface 17 that contacts a person using the adjustable outdoor furniture. Suitable moveable support surfaces can be rigid and flat surfaces or flexible surfaces, for example, sling-type fabric surfaces. In addition, the moveable support surface can include upholstery and padding. In general, the moveable support elements include the support elements that move relative to support elements of the fixed frame. As illustrated in FIG. 1, the moveable support elements are positioned to support the upper body. However, the moveable support elements can include seat backs, head rests, foot rests, seating areas, arms rests and leg rest portions. The moveable frame also includes back stays and other framing members that hold or secure the moveable frame in a desired position. While the moveable frame is illustrated as a structure that moves or articulates as a single unit, the moveable frame can be segmented into a plurality of moveable sub-frames that each can move relative to each other and the fixed frame. In one embodiment, the moveable frame attaches to the fixed frame at one or more pivot points 19.

Conventional moveable frame members in outdoor furnishings are manually position or moved to a desired position, height or angle. Exemplary embodiments provide for mechanized or mechanically assisted adjustment of the moveable frame or moveable frames with respect to the fixed frame or fixed frames. The adjustable outdoor furnishing includes at least one articulation unit 18. In one embodiment, each articulation unit is separate from the fixed frame and moveable frame and is releasably attachable to at least one of the fixed frame and the moveable frame, Preferably, each articulation unit can be attached to and removed from the outdoor furnishing. In general, the articulation unit is configured to be modular or compatible with a variety of outdoor furnishings. Therefore, the articulation unit can be added or retro-fitted to existing outdoor furnishings. In addition, the articulation unit can be removed from a first outdoor furnishing and re-attached to a second outdoor furnishing.

Referring to FIG. 2, a representation of an embodiment of components of the articulation unit 20 is provided. The articulation unit includes a first engagement member 22 that engages or attaches to the fixed frame or the moveable frame at one of more locations. In one embodiment, the first engagement member is a releasable member. Preferably, the first engagement member utilizes any arrangement of frame members and fasteners to provide attachment to the fixed frame or moveable frame at one or more set or fixed locations. The first engagement member utilizes any suitable type of mechanism that provides for selective attachment and removal of the articulation unit to the fixed frame or moveable frame. The first engagement member can include a fastener, for example, a threaded fastener, a clamp, a magnetic fastener and a hook and loop type fastener. A threaded fastener such as a screw can be used on frame members constructed of wood. Referring to FIG. 3, the first engagement member 22 is formed as a clamping mechanism having an attachment frame 24 that extends at least partially around a fixed or moveable frame member 25 of the fixed frame or moveable frame and includes a threaded fastener 26. In one embodiment, the attachment frame extends at least partially over the top of the frame member to allow the articulation unit to hang from the frame member. Therefore, the frame member supports the weight of the articulation unit. As illustrated, the threaded fastener is a bolt extending through the attachment frame and contacting the frame member to secure the first engagement member to the frame member. The attachment frame can extend around the opposite side of the frame member 25, at least partially, to provide for secure engagement between the attachment frame and frame member.

Returning to FIG. 2, as illustrated, the first engagement member includes three threaded fasteners 26 threaded into the attachment frame that engage or attach to the fixed frame or moveable frame at three distinct locations. Therefore, in one embodiment, the first engagement member engages the fixed frame at one or more set or fixed frame locations. Other arrangements of the attachment frame can engage multiple frame members of the fixed frame or moveable frame. The attachment frame of the first engagement member can include multiple frame members or frame rails and can span at least one of the length or width of the moveable frame or fixed frame. In general, any arrangement that provides for secure attachment of the articulation unit to the fixed or moveable frame at the desired locations can be used.

The articulation unit also includes a second engagement member 28 that engages the fixed frame or the moveable frame at one or more moveable frame locations. If the first engagement member engages the fixed frame, the second engagement member engages the moveable frame. Preferably, the first engagement member attaches to the fixed frame, and the second engagement member engages the moveable frame member. Therefore, the articulation unit is in contact with and spans between the fixed frame and the moveable frame and provides for assisted articulation or relative motion between the fixed frame and the moveable frame.

In one embodiment, the second engagement member is a releasable member. While the second engagement member can be the same as or identical to the first engagement member or can be attached to the moveable frame at one or more set locations, preferably, the second engagement member is configured to allow relative motion between the second engagement member and the moveable frame as the moveable frame articulates with respect to the fixed frame. Therefore, the second engagement member does not attach to or engage the moveable frame at a set location on the moveable frame. In one embodiment, the second engagement member engages a bottom surface of one or more of the framing members of the moveable frame. Therefore, the second engagement member transfers a lifting force to the moveable frame. In addition, the moveable frame can be lifted off the second engagement member.

In one embodiment, the second engagement member is a wheel or roller in contact with the moveable frame. In one embodiment, the roller is in contact with a single framing member or rail of the moveable frame. In another embodiment, the roller extends across an entire width of the moveable frame. The wheel or roller rolls along the moveable frame at the moveable frame articulates. Suitable materials for the roller include plastics and elastomers.

In one embodiment, the articulation unit includes a drive mechanism 30 disposed between the first engagement member and the second engagement member. Any suitable drive mechanism that provides the desired movement between the first and second engagement members can be used. In one embodiment, the drive mechanism is an extensible member. The extensible member moves the first engagement member relative to the second engagement member, which moves the moveable frame with respect to the fixed frame, providing the desired articulation in the adjustable outdoor furnishing. In one embodiment, the extensible member provides for linear movement between a fixed portion 32 and an extensible portion 34 of the extensible member in the direction indicated by arrow A. Suitable extensible members include, but are not limited to, a hydraulic piston, a pneumatic piston, a gas spring, a gas lift cylinder or a locking gas lift cylinder. In one embodiment, the extensible member is a linear actuator, for example, a linear actuator driven by an electric motor.

To provide for the desired relative movement between the fixed portion and the extensible portion of the extensible member, a source of electrical power, pressured air or pressurised fluid is provided in contact with the articulation unit and extensible member. The sources of electrical power, pressurised air or pressurized fluid can be integrated into the adjustable outdoor furnishing or provided from sources external to the outdoor furnishings. For example, control electronics and power supplies, e.g., batteries, are provided in communication with the extensible member. In one embodiment, the power supply is a battery, for example, a rechargeable battery. In one embodiment, the power supply includes a photovoltaic cell. These control electronics and power supplies can be attached to the fixed frame or moveable frame. In one embodiment, the control electronics are integrated into the fixed portion of the extensible member. The control electronics provide the control and operational functions of the articulating furniture frame. The control electronics are configured to be suitable for an outdoor environment, i.e., the control electronics are waterproof or are contained in sealed boxes. In one embodiment, the control electronics utilized low, DC voltages. In addition, the extensible member is configured to be compatible with an outdoor environment. In one embodiment, the control electronics and power supplies are contained within sealed control boxes. In one embodiment, the control electronics are seated or potted in epoxy.

The control electronics can also include one or more wired or wireless remotes to control operation of the extensible member. The control electronics include at least one separate remote control that provides for the up and down motion of the moveable furniture components through control of the actuator. The remote control is configured to be suitable for outdoor and corrosive environments, i.e., is waterproof. In one embodiment, a switch type up-and-down button that is in communication with the control electronics is mounted to the articulating outdoor furniture. The switch type button provides for adjustment of the moveable furniture components.

In one embodiment, a source of pressurized gas or pressurized fluid is integrated into the fixed portion of the extensible member or is mounted to one of the attachment frame and the moveable frame. In one embodiment, the articulation unit includes valves in communication with the extensible member and one or more control levers in communication with the valves to direct the pressurized air or fluid to achieve the desired motion between the fixed portion and the extensible portion. Suitable valves and levers are known and available in the art. When the extensible member is a gas lift cylinder or a locking gas lift cylinder, the articulation unit includes a locking mechanism in communication with the extensible member and a lever in communication with the locking mechanism to selectively engage or disengage the locking mechanism. Suitable locking mechanisms and levers for use with gas cylinders are known and available in the art.

The extensible member is attached to the first engagement member and the second engagement member to provide for relative movement between the extensible member and the first engagement member and the second engagement member. In one embodiment, the extensible member is pivotally attached to at least one of the first engagement member and the second engagement member. For example, the fixed portion of the extensible member is attached to the first engagement member at a pivot point 36. The extensible member can also be attached to the first engagement member and the second engagement member at swivel joints.

The motion of the extensible member is linear, and the articulation unit translates that linear motion to the desired rotational or pivoting motion between the fixed frame and the moveable frame of the adjustable outdoor furnishing. In one embodiment, the articulation unit includes a cam 38 disposed between the extensible member and at least one of the first engagement member and the second engagement member. As illustrated, the cam is disposed between the extensible portion of the extensible member and the second engagement member. The cam translates linear motion of the extensible member to pivoting motion between the fixed frame and the moveable frame. In one embodiment, the cam includes a pivot joint 53 having a fixed portion 50 attached to either the first engagement member or the fixed frame. As illustrated, the fixed portion of the pivot joint is mounted on the attached frame 24 of the first engagement member. The pivot joint also includes a rotating portion 52 attached to and rotatable around the fixed portion.

A pivot arm 44 extends from and is in contact with the rotating portion, the second engagement member and the extensible member. In one embodiment, the pivot arm is pivotally connected to the extensible portion of the extensible member at a pivot joint 46. In one embodiment, the pivot arm is formed as a generally “L” shaped arm with one end in contact with the rotating portion and the other end in contact with the second engagement member. In another embodiment, the pivot arm includes a first pivot arm portion 43 extending from the rotating portion and a second pivot arm portion 42 extending from the second engagement member 28. The first pivot arm contacts the second pivot arm at a pivot arm joint 48. In one embodiment, the pivot arm joint is a fixed joint that defines a fixed angle 40 between the first and second pivot arm portions. In another embodiment, the pivot arm joint is an adjustable joint that defines an adjustable and selectable angle 40 between the first and second pivot arm portions. In one embodiment, the adjustable joint pivot arm joint is lockable at a given angle between the first and second pivot arm portions.

In one embodiment, the extensible member, pivot arm and pivot joint are used to adjust a location of the second engagement member in a direction as indicated by arrow B to engage a bottom of the moveable frame. The extensible portion of the extensible member is extended or retracted, pivoting the pivot arm having a fixed angle 40 about the pivot joint 53 until the second engagement member is in contact with the bottom of the moveable frame, for example, when the moveable frame is in the flat or unarticulated position. Further extension of the extensible member pivots the pivot arm, lifting the moveable frame as the second engagement member rolls along the bottom of the moveable frame. For an adjustable pivot joint, the extensible member is not moved, and the angle 40 is adjusted until the second engagement member contacts the bottom of the moveable frame. The angle is then locked, and extension of the extensible member lifts the moveable frame as the second engagement member rolls along the bottom of the moveable frame. While illustrated as using an extensible mechanism to provide the desired movement between the first and second engagement members, in general, any type of motor or drive mechanism that provides the desired relative motion between the first and second engagement members can be used, for example, a rotating motor. The extensible member is an embodiment of a drive mechanism.

Returning to FIG. 1, the adjustable outdoor furnishing 10 is a lounge chair. The fixed frame 11 is a lower body support portion of the lounge chair, i.e., a portion that supports from the legs to the waist or hips, and the moveable frame 12 is an upper body portion of the lounge chair. In another embodiment, the adjustable outdoor furnishing is a chair with the fixed frame providing a seat portion of the chair and the moveable frame an upper body portion of the chair. The upper body portion of the lounge is in the flat position. The first engagement member 56 of the articulation unit 18 is attached to the fixed frame at a single fixed engagement point 64, and the second engagement member 28 is in contact with the bottom 58 of the moveable frame 12. The pivot point 54 of the articulation unit is attached directly to the fixed frame at a point separate from the first engagement member. The pivot arm 62 extends from the pivot point to the second engagement member and includes a fixed angle 60.

Referring to FIG. 4, the extensible portion 66 of the extensible member 18 is extended from the fixed portion 70 in the direction of arrow D. This pivots the pivot arm around the pivot point while maintaining the fixed angle 60, which moves the second engagement member along the bottom 58 of the moveable frame 12 in the direction of arrow C, pivoting the moveable frame in the direction of arrow E with respect to the fixed frame. This achieves the desired adjustment in the outdoor furnishing.

Referring to FIG. 5, in another embodiment, the adjustable outdoor furnishing 80 is a lounge chair having a fixed frame that is a seat portion of the lounge chair and a moveable frame that is at least one of an upper body portion or a leg portion of the lounge chair. As illustrated, the adjustable outdoor furnishing includes a fixed frame 82, an upper body portion moveable frame 84 attached to the fixed frame at a first pivot point 83, and a leg portion moveable frame 86 attached to the fixed frame at a second pivot point 85. In one embodiment, a single articulation unit having a first engagement member attached to the fixed frame and two separate second engagement members and articulation units attached to the first engagement member and contacting one of the upper body portion moveable frame and the leg portion moveable frame is used. Alternatively, a pair of separate identical or mirror imaged articulation units are included in the adjustable outdoor furnishing. These articulation units include a first articulation unit 88 disposed between the upper body moveable frame and the fixed frame and a second articulation unit 90 disposed between the leg portion moveable frame and the fixed frame. Any suitable arrangement of articulation units disclosed herein can be used for the first and second articulation units.

The articulation unit disposed between a fixed frame and the moveable frame can be attached to the fixed frame so that it is located outside the framing of the outdoor furnishing. For example, one articulation unit can be located on and easily attached to either exterior side of the outdoor furnishing. In addition, one or more articulation units can be located completely within the width of the outdoor furnishing and below the seating and contact surfaces of the outdoor furnishing.

Exemplary embodiments are also directed to an articulation unit as illustrated, for example, in FIG. 2, for releasable attachment to an outdoor furnishing. The articulating unit can be attached to the outdoor furnishing to provide assisted or mechanised articulation of moveable portions of the outdoor furnishing with respect to the fixed portions of the outdoor furnishing. Suitable articulation units, which are separate from the fixed and moveable frames of the outdoor furnishings, are described herein and include a first engagement member containing at least one fastener to engage framing members at a fixed frame location. These fasteners are releasable fasteners. A second engagement member includes at least one roller, or other suitable member that provides for movement along framing members, to engage framing members at a moveable frame location. A drive mechanism, which in one embodiment, is an extensible member, is disposed between the first engagement member and the second engagement member to move each second engagement member with respect to each first engagement member. In one embodiment, a cam is provide between the extensible member and at least one of the first engagement member and the second engagement member to translate the linear motion of the extensible member into rotational motion between the first engagement member and the second engagement member.

Referring now to FIGS. 6-14, an exemplary embodiment of an adjustable outdoor furnishing 100 is illustrated. The adjustable outdoor furnishing is a sling-type outdoor lounge chair with metal framing and cloth or fabric support surfaces; however, other types of outdoor furnishings can be used. These other types of outdoor furnishings include, but are not limited to, chairs, cots, swings, tables, couches, love seats and adirondack-style chairs. In general, any type of furnishing used in an outdoor, patio or pool deck environment can be used.

The adjustable outdoor furnishing includes a fixed frame 108 and moveable frame 110 pivotally attached to the fixed frame at one or more locations along the fixed frame. The fixed frame includes the fixed support elements for the furniture including, for example, legs 102, arms 106, side rails 103, ends rails 107, additional cross-rail members and the connecting members and fasteners that connect or attached the components of the fixed frame. In addition, the fixed frame includes the seating and support elements 109. The elements of the fixed frame do not move relative to each other

The moveable frame 110 includes portions of the furnishing that move, adjust or articulate with respect to fixed frame to provide the desired adjustment, seating position or reclining position. These portions of the furnishing can include, for example, seat backs, head rests, foot rests, seating areas and leg rest portions. As illustrated, the moveable frame is the seat back or upper body support of the furnishing. The moveable frame components include moveable frame side rails 113, moveable frame end rails or cross rails 115 and occupant support elements 117 attached to the frame rails. In one embodiment, the moveable frame also includes components that move with respect to the moveable frame components, for example, adjustable back stays 111 that engage components of the fixed frame to hold or secure moveable frame members in a desired position. The moveable frame members can be manually moved to a desired position, height or angle.

The adjustable outdoor furnishing includes an articulation unit 104 attached to the fixed frame and engaging the moveable frame. The articulation unit is an independent and separate structure that is removably attachable to the fixed frame and moveable frame, for example, by an end user of the outdoor furnishing. The articulation unit fits a range of sizes, styles and types of outdoor furnishings. Therefore, the articulation unit contains adjustable elements and structures that conform the articulation unit to the size and shape of the fixed frame and moveable frame of the outdoor furnishing. Attachment of the articulation unit to the frames of the outdoor furnishing does not require modifications to the furnishing, for example, drilling holes in the furnishing frames, cutting the frames or removing portions of the frames. The articulation unit can be attached to the fixed frame and moveable frame of the outdoor furnishing with or without the use of tools.

As described herein, the articulation unit includes the structural and operational components to provide motorized adjustment of the moveable frame relative to the fixed frame. The articulation unite includes the first engagement member 112 that is configured as an attachment frame. The attachment frame attaches or secures the articulation unit to the fixed frame. The attachment frame is releasably attached to the fixed frame. The attachment frame, when attached to the fixed frame does not move relative to the fixed frame. Therefore, the attachment frame provides a fixed or stationary frame about which the other components of the articulation unit can move or articulate.

Suitable materials for the attachment frame, and all other components of the articulation unit, include, but are not limited to, tubular metals having a circular or rectangular cross section, plastics, polymers, fiber glass and carbon fiber. Suitable metals include steel, stainless steel and aluminum. In one embodiment, the attachment frame is constructed from materials that provide sufficient structural integrity while reducing weight and providing resistance to corrosion. These materials include, for example, aluminum, carbon fiber, fiber glass, plastics and polymers. The articulation unit when attached to the fixed frame and moveable frame is located underneath or below the support surfaces of the outdoor furnishing and is contained within the width and length of the outdoor furnishing. As illustrated, the attachment frame is positioned below the seat area of the furniture.

The size of the attachment frame is variable in at least one dimension to accommodate the existing width or length of the portion of the fixed frame to which the attachment frame is attached. Therefore, the attachment frame includes a plurality of lateral members 114 that extend along the width of the furniture. As illustrated, the attachment frame includes two lateral members spaced from each other. At least one lateral member has a length 116 (FIG. 13) that is adjustable to accommodate different furniture widths and to facilitate positioning and attachment of the attachment frame on the fixed frame. In one embodiment, at least one or both ends of each adjustable lateral member has a telescoping structure to adjust the length of the lateral member. As illustrated, a single end of a single lateral member includes a telescoping structure. While illustrated as a telescoping structure, any suitable structure that provides for adjustment of the length of a frame member can be used. In one embodiment, the telescoping structure includes a hollow tubular lateral member and an internal sliding member 118 disposed within the hollow tubular lateral member. The internal sliding member is moved into and out from one end of the hollow tubular lateral member. The internal sliding member includes an elongated slot 120 passing through the internal sliding member and running along a portion of the length of the internal sliding member. A set screw 122 passes through the hollow tubular lateral member and the elongated slot. The set screw limits the movement of the internal sliding member into and out of the hollow tubular lateral member and holds the internal sliding member at a selected position. Moving the internal sliding member into and out of the hollow tubular lateral member adjusts the length of the lateral member.

The attachment frame includes a plurality of fasteners 124 to secure the attachment frame to the fixed frame at a plurality of fixed frame locations such that the attachment frame does not move with respect to the fixed frame. In one embodiment, each fastener is a clamping member 124 attached to a given end of each one of the lateral members. For two lateral members, spaced from each other along the length of the fixed frame, the attachment frame includes four fasteners. In one embodiment, at least one of the clamping members is attached to one of the internal sliding members. As illustrated, the attachment frame includes a single moveable fastener 127 attached to the internal sliding member 118 of the lateral member having an adjustable length. The moveable fastener is fixedly secured to the sliding member. Therefore, moving the internal sliding member moves the clamping member. The other fasteners 124 are fixedly secured to the ends of their respective lateral members.

Each fastener or clamping member has a “C” shape to engage a bottom surface of the internal sliding member or lateral member and the top surface of the fixed frame member to which it is attached. Therefore, each clamping member provides for hanging attachment of the articulation unit to the fixed frame and for support of the attachment frame. The distal end of each clamping member, which is in contact with the fixed frame, has an “L” shape. However, each distal end can also have a “C” shape to engage the top surface of the fixed frame member and to extend at least partially along an inner surface of the fixed frame member.

Each fastener also includes a set screw 126 passing through the fastener and engaging the fixed frame to secure or to hold the fastener to the fixed frame at a set location. In one embodiment, the set screw is a thumb screw or is otherwise operable by hand. The internal sliding member, fasteners and associated set screws are used to attach and secure the attachment frame to the fixed frame. The set screw holding the internal sliding member is loosened, and the internal sliding member is moved outward. This also moves the clamping member outward. The attachment frame is moved into position under the fixed frame with the fasteners attached to the fixed ends of the laterals members positioned to engage the top surface of the fixed frame. A space 128 (FIGS. 13 and 14) exists between the fastener attached to the internal sliding member and the fixed frame. The fixed frame passes through this space to provide for proper positioning of the attachment frame. The sliding member is then moved into the hollow lateral member, moving the fastener inward until the fastener engages the sides and top of the fixed frame. The set screw associated with the internal sliding member is tightened followed by the set screws associated with the fasteners. This secures the attachment frame to the fixed frame, preventing removal of the attachment frame and relative movement between the attachment frame and the fixed frame. Performing these steps in reverse provides for removal of the attachment frame and therefore the articulation unit from the outdoor furnishing.

The attachment frame also includes a plurality of cross members 130 extending between and secured to the lateral members. As illustrated, the attachment frame includes three cross members. The cross members provide support for the lateral members and rigidity to the attachment frame. In one embodiment, the attachment member can also include additional structural members such as gussets to provide additional strength and rigidity to the attachment frame.

The articulation unit includes the second engagement member 132 arranged as an articulating frame disposed between the attachment frame and the moveable frame of the furnishing and rotatably attached to the attachment frame of the first engagement member. As illustrated, the articulation unit includes a single articulating frame; however, the articulation unit can include a plurality of articulating frames, one for each moveable frame of the outdoor furnishing, e.g., the upper body moveable frame and the leg moveable frame. Each articulating frame is moveably connected to the attachment frame.

In one embodiment, the articulating frame rotates with respect to the attachment frame and in particular with respect to one of the lateral members of the attachment frame. Therefore, the attachment frame of the first engagement member includes a plurality of brackets 134 extending from one of the lateral members of the attachment frame. As illustrated, the attachment frame includes two brackets. Each bracket includes a circular bore 136. The articulating frame has a first cylindrical tube 138 with a circular cross section that passes through the circular bore of each bracket to provide rotatable attachment of the articulating frame to the attachment frame. Rotation of the first cylindrical tube within the circular bores allows the articulating frame to move or to rotate with respect to the attachment frame. In one embodiment, a bushing assembly 140 is provided where the first cylindrical tube passes through each circular bore. This provides smoother rotation and a better wear surface. The first cylindrical tube is held in each circular bore and lateral movement of the first cylindrical tube along the lateral member is prevented by a washer 142 and set pin or cotter pin 144.

The articulating frame includes a second cylindrical tube 146 with a circular cross-section. The second cylindrical tube is spaced from and connected to the first circular tube by a plurality of spanning frame members 154. The spanning frame members can have a set length or can be extensible members that adjust the distance between the first circular tube and the adjustable tube to accommodate the size or length of the moveable frame of the outdoor furnishing. The second cylindrical tube has an adjustable length. In one embodiment, the second cylindrical tube has a spanning length 147 (FIG. 14) that is adjustable to accommodate a size or width of the desired components of the moveable frame that are to be engaged by the articulating frame.

To provide for an adjustable spanning length, the adjustable tube includes an internal concentric extension tube 148 passing through the second cylindrical tube. In one embodiment a separate internal concentric extension tube is inserted into each end of the second cylindrical tube. Each extension tube can be selectively inserted into and pulled from the adjustable tube. A set screw 152, knurl knob or thumb screw passes through the second cylindrical tube, for example, adjacent either end of the second cylindrical tube. Each set screw contacts the extension tube that is inserted within a given end of the second cylindrical tube and secures that extension tube at a given position relative to the second cylindrical tube. While illustrated as a cylindrical tube and cylindrical extension tube having a circular cross-section, other geometries can be used including rectangular, square, oblong and triangular.

The articulating frame includes a plurality of rollers 150 that engage the bottom surface of the moveable frame at one of the moveable frame locations. Each moveable frame location changes as the articulating frame moves with respect to the attachment frame, i.e., each roller moves along or rolls along the moveable frame. As illustrated, the articulating frame includes two rollers or rolling wheels. Each roller is rotatably attached to an end of the second cylindrical tube and in particular to the end of one of the extension tubes. In one embodiment, each roller is concentric with the extension tube. In one embodiment, each roller surrounds and rotates around the extension tube. Each roller provides the bearing surface for contacting and pushing against the moveable furniture component. Suitable materials for the roller include, but are not limited to, plastics, polymers and elastomers.

In one embodiment, the moveable frame rests on the rollers. Therefore, the moveable frame can be manually raised off the rolling wheels. In one embodiment, each roller includes a bearing surface portion 153 having a first diameter and an internal collar portion 151 having a second diameter greater than the first diameter. The moveable frame components rest on the bearing surface portion, and the internal collar portion engages an internal face 156 of one of the framing members of the moveable furniture component. Therefore, the second cylindrical tube is brought into contact with the bottom of the moveable frame and the extension tubes are moved outward until the internal collar portions contact the internal faces. This adjusts the spanning length of the second cylindrical tube to correspond to the spacing between the moveable frame members. In one embodiment, the adjustable tube engages the adjustable back stays 111 of the moveable frame to prevent those adjustable back stays from stopping or inhibiting movement of the moveable frame.

The articulation unit includes the drive mechanism arranged as at least extensible member 158 disposed between the attachment frame and the articulating frame. Any extensible member disclosed herein can be used. The extensible member is extensible and retractable to cause relative movement between the attachment frame and articulating frame. As the adjustable furniture is used in an outdoor or otherwise corrosive environment, the extensible member is preferably a sealed unit that protects the internal components and any electronics from water, moisture or other corrosive substances, e.g., chlorine. In one embodiment, the electronics, and all electronics and batteries are sealed or seated in epoxy.

The extensible member is connected to the attachment frame and in particular one of the lateral members in the attachment frame. The lateral member to which the extensible member is attached has a sufficient size and strength to support the loads applied to the lateral member by the extensible member. In one embodiment, the extensible member and preferably the fixed end of the extensible member is connected to the attachment frame with an attachment frame pivot or swivel mount 160. In one embodiment, the attachment frame swivel mount is a U-shaped frame element or bracket that is bolted or welded to the attachment frame and into which a first end of the extensible member is inserted. The extensible member is held in the U-shaped frame element using pins or bolts and can swivel or pivot within the U-shaped frame element. The extensible member extends from the U-shaped frame element, and a second end of the extensible member opposite the first end, i.e., the extensible portion, engages the articulating frame.

The articulation unit includes at least one arm 162 disposed between the extensible member and the articulating frame. In one embodiment, the arm is attached to the first cylindrical tube and at least one additional location on the articulating frame and includes a bracket for pivoting attachment to the extensible member. The arm functions as a cam that translates linear motion of the extensible member to pivoting motion between the fixed frame and the moveable frame. In one embodiment, the arm includes a bracket 163. The second end of the extensible member is pivotally attached to the bracket. In one embodiment, the bracket is configured as an open frame into which the second end of the extensible member is inserted. An arrangement of pins and bolts are inserted through the two sides of the open frame and the second end of the actuator to provide the desired attachment.

Preferably, the bracket is an angled bracket having a first or push end 165 and a pivot end 167 of the angled bracket opposite the push end. The angled bracket includes an angle between the push end and the pivot end. The second end of the actuator is attached to a push end of the angled bracket. The pivot end of the angled bracket is attached to the articulating frame and in particular the first cylindrical tube at a pivot attachment point 164. In one embodiment, the pivot attachment point is a fixed connection on the first cylindrical tube. Therefore, movement of the angled bracket by the actuator causes the angled bracket and the first tube to rotate about the axis of the first cylindrical tube. The first cylindrical tube rotates within the brackets. Rotation of the first cylindrical tube also rotates the other members of the articulating frame, i.e., the spanning frame members and the adjustable tube.

In one embodiment, the arm 162 includes a secondary push member 166 extending from the angled bracket to one of the spanning frame members. The secondary push member provides additional support for movement of the articulating frame. The secondary push member is attached, either fixedly or moveably, to the angled bracket at the bend along the length of the angled bracket. The secondary push member extends from the angled bracket to the adjustable tube or to a point along one of the spanning frame members adjacent the adjustable tube. Therefore, the components of the arm work in conjunction with the extensible member and the components of the articulating frame to translate linear extension of the extensible member into rotating movement between the attachment frame and the articulating frame. Rotating movement between the attachment frame and the articulating frame of the articulation unit yields lifting movement of the moveable frame. The result is lifting or articulation of the moveable frame as the rolling wheels progress or move along the moveable frame component.

In one embodiment, the extensible member is a gas cylinder or a locking gas cylinder. Alternatively, the extensible member is an actuator, e.g., a linear actuator. The articulating furniture frame also includes the control electronics and power supplies in communication with each actuator. The control electronics provide the control and operational functions of the articulating furniture frame. In one embodiment, the power supply is a battery, for example, a rechargeable battery. In one embodiment, the power supply includes a photovoltaic cell. The control electronics and power supplies are mounted to one of the attachment frame and the moveable frame. The control electronics and power supplies are contained within sealed control boxes. In one embodiment, the control electronics are seated or potted in epoxy. The control electronics include at least one separate remote control that provides for the up and down motion of the moveable furniture components through control of the actuator. The remote control is configured to be suitable for outdoor and corrosive environments, i.e., are waterproof. In one embodiment, a switch type of up and down button that is in communication with the control electronics is mounted to one or both arms of the furniture. The switch type button provides for adjustment of the moveable furniture components.

In one embodiment, the articulation unit includes a heater mechanism, for example a heated seat cushion, that is in communication with the control electronics and power supply. The heated seat cushion includes integrated stainless steel and carbon fiber and provides for use of the adjustable furniture in cold or cooler seasons. Exemplary embodiments are also directed to methods of making and using adjustable outdoor furniture, methods of modifying outdoor furniture to include an articulating furniture frame and methods for attaching an articulating furniture frame to outdoor furniture.

This written description uses examples of the subject matter disclosed to enable any person skilled in the art to practice the same, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the subject matter is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims.

Claims

1. An adjustable outdoor furnishing comprising:

a fixed frame;

a moveable frame attached to and moveable with respect to the fixed frame; and

an articulation unit separate from the fixed frame and moveable frame and releasably attachable to at least one of the fixed frame and the moveable frame, the articulation unit comprising: a first engagement member engaging the fixed frame at one or more fixed frame locations; a second engagement member engaging the moveable frame at one or more moveable frame locations; and a drive mechanism disposed between the first engagement member and the second engagement member to move the moveable frame with respect to the fixed frame.

2. The adjustable outdoor furnishing of claim 1, wherein:

the adjustable outdoor furnishing comprises a chair;

the fixed frame comprises a seat portion of the chair; and

the moveable frame comprises an upper body portion of the chair.

3. The adjustable outdoor furnishing of claim 1, wherein:

the adjustable outdoor furnishing comprises a lounge chair;

the fixed frame comprises a lower body support portion of the lounge chair; and

the moveable frame comprises an upper body portion of the lounge chair.

4. The adjustable outdoor furnishing of claim 1, wherein:

the adjustable outdoor furnishing comprises a lounge chair;

the fixed frame comprises a seat portion of the lounge chair; and

the moveable frame comprises an upper body portion or a leg portion of the lounge chair.

5. The adjustable outdoor furnishing of claim 4, wherein the adjustable outdoor furnishing further comprises:

an upper body portion moveable frame;

a leg portion moveable frame;

a first articulation unit disposed between the upper body moveable frame and the fixed frame; and

a second articulation unit disposed between the leg portion moveable frame and the fixed frame.

6. The adjustable outdoor furnishing of claim 1, wherein at least one of the fixed frame locations comprise set locations on the fixed frame and the moveable frame locations comprise set locations on the moveable frame.

7. The adjustable outdoor furnishing of claim 1, wherein the first engagement member and the second engagement member comprise releasable members.

8. The adjustable outdoor furnishing of claim 1, wherein the extensible member is pivotally attached to the first engagement member and the second engagement member.

9. The adjustable outdoor furnishing of claim 1, wherein the second engagement member comprises at least one roller in contact with the moveable frame.

10. The adjustable outdoor furnishing of claim 1, wherein the drive mechanism comprises an extensible member comprising a hydraulic piston, a pneumatic piston, a gas spring, a gas lift cylinder or a locking gas lift cylinder.

11. The adjustable outdoor furnishing of claim 1, wherein the drive mechanism comprises a linear actuator.

12. The adjustable outdoor furnishing of claim 1, wherein the drive mechanism comprises an extensible member and the articulation unit further comprises a cam disposed between the extensible member and at least one of the first engagement member and the second engagement member, the cam translating linear motion of the extensible member to pivoting motion between the fixed frame and the moveable frame.

13. The adjustable outdoor furnishing of claim 12, wherein the cam comprises:

a pivot joint comprising: a fixed portion attached to the first engagement member or the fixed frame; and a rotating portion attached to the fixed portion; and

a pivot arm in contact with the rotating portion, the second engagement member and the extensible member.

14. The adjustable outdoor furnishing of claim 1, wherein:

the first engagement member comprises an attachment frame comprising a plurality of fasteners to secure the attachment frame to the fixed frame at the fixed frame locations such that the attachment frame does not move with respect to the fixed frame; and

the second engagement member comprises: an articulating frame rotatably attached to the attachment frame; and a plurality of rollers attached to the articulating frame and engaging the moveable frame at one of the moveable frame locations, each moveable frame location changing as the articulating frame moves with respect to the attachment frame.

15. The adjustable outdoor furnishing of claim 14, wherein:

the first engagement member further comprises a plurality of brackets extending from the attachment frame, each bracket comprising a circular bore;

the articulating frame comprises a cylindrical tube passing through the circular bore of each bracket to provide rotatable attachment of the articulating frame to the attachment frame;

the drive mechanism comprises an extensible member; and

the articulation unit comprises at least one arm attached to the cylindrical tube and at least one additional location on the articulating frame, wherein the brackets, cylindrical tube and arm comprise a cam that translates linear motion of the extensible member to pivoting motion between the fixed frame and the moveable frame.

16. An adjustable outdoor furnishing comprising:

a fixed frame;

a moveable frame attached to and moveable with respect to the fixed frame; and

an articulation unit separate from the fixed frame and moveable frame, the articulation unit comprising: a first engagement member engaging the fixed frame at one or more fixed frame locations, each fixed frame location comprising a set location on the fixed frame; a second engagement member engaging the moveable frame at one or more moveable frame locations, each moveable frame location changing as the moveable frame moves with respect to the fixed frame; and an extensible member disposed between the first engagement member and the second engagement member to move the moveable frame with respect to the fixed frame.

17. The adjustable outdoor furnishing of claim 16, wherein the first engagement member comprises a plurality of fasteners to secure the articulation unit to the fixed frame at the fixed frame locations and each fastener comprises a releasable fastener.

18. The adjustable outdoor furnishing of claim 16, wherein the second engagement member comprises a roller in contact with the moveable frame at each moveable frame location.

19. The adjustable outdoor furnishing of claim 16, wherein the articulation unit further comprises a cam comprising:

a pivot joint comprising: a fixed portion attached to the first engagement member or the fixed frame; and a rotating portion attached to the fixed portion; and

a pivot arm in contact with the rotating portion, the second engagement member and the extensible member.

wherein the cam translates linear motion of the extensible member to pivoting motion between the fixed frame and the moveable frame.

20. An articulation unit for attachment to an outdoor furnishing, the articulation unit comprising:

a first engagement member comprising at least one fastener to engage framing members at a fixed frame location, the fastener comprising a releasable fastener;

a second engagement member comprising at least one roller to engage framing members at a moveable frame location; and

a drive mechanism disposed between the first engagement member and the second engagement member to move the second engagement member with respect to the first engagement member.