Abstract: A footrest extension device for a chair includes eight connecting rods: a first connecting rod is connected to a main frame, and pivotally connected to a second connecting rod and a third connecting rod, respectively; the second connecting rod is connected to the main frame, and pivotally connected to a fourth connecting rod; the third connecting rod is pivotally connected to the fourth connecting rod, a sixth connecting rod and a eighth connecting rod, respectively; a fifth connecting rod is pivotally connected to the fourth connecting rod and the sixth connecting rod, respectively; the sixth connecting rod is pivotally connected to a seventh connecting rod; the seventh connecting rod is pivotally connected to the eighth connecting rod; and the second connecting rod, driven by a driving device, drives the other connecting rods to move, so the footrest extension device is folded or extended.

Abstract: A posture correction mechanism includes a carrier attached to a housing, and a gearwheel rotatably attached to the housing, the gearwheel includes a screw hole engaged with a screw which is moveable up and down relative to the housing for driving the gearwheel to rotate relative to the housing, two shafts are rotatably attached to the carrier and each has an arm rest, two gears are rotatably attached to the carrier and engaged with the gearwheel, the gears are connected to the shafts for allowing the shafts to be driven by the gearwheel to rotate relative to the carrier and for allowing the arm rests to be rotated toward or away from the user.

Abstract: A mechanism for actuating a motion furniture is disclosed. The mechanism includes a chassis assembly, a linkage assembly operatively connected to the chassis assembly via a front pivot link and a rear pivot link and further including an ottoman drive link, and a linear actuator having a base and a driving end, the base being connected to the chassis and the driving end being operatively connected to the linkage assembly via the ottoman drive link, wherein the linear actuator is configured to extend to deploy the linkage assembly to an open position by pushing the ottoman drive link forward and to contract to retract the linkable assembly to a closed position by pulling the motor drive tube backward.

Abstract: A seating or furniture assembly may include a seat bottom, a seatback, and a lumbar adjustment assembly. The seatback is disposed adjacent the seat bottom and includes a seatback frame. The lumbar adjustment assembly may be mounted to the seatback frame and may include a rail, a threaded rod disposed within the rail, a first slider block slidably engaging the rail, a second slider block slidably engaging the rail, a lumbar pad, and a plurality of links connecting the lumbar pad to the first and second slider blocks. The threaded rod may include a first threaded section having threads with a first handedness and a second threaded section having threads with a second handedness that is opposite the first handedness. The first slider block may threadably engage the first threaded section. The second slider block may threadably engage the second threaded section.

Abstract: A rear seat assembly is provided. The rear seat assembly includes a seat frame, a seat back, a seat cushion frame, and a power tilt assembly. The seat cushion frame is pivotally coupled to the seat frame at a tip up pivot axis to move between a seated position and a tip up position such that in the tip up position, the seat cushion frame is pivoted towards the seat back in a generally vehicle vertical position. The power tilt assembly is coupled to the seat cushion frame and is configured to adjust an angle of a seat cushion with respect to a vehicle floor.

Abstract: A vehicle seating assembly includes a leg support rotationally coupled to a seat and including a bladder assembly at least partially disposed on the leg support, and a lift mechanism disposed between the seat and the leg support, wherein the lift mechanism is configured to move the leg support between a stored position and a deployed position, and wherein the bladder assembly is inflatable between a deflated state and an inflated state.

Abstract: A furniture fitting for an item of seating furniture. The furniture fitting has a base portion attaching to a furniture base that stands on a floor, a seat face portion attaching a seat face unit having a seat face, and a leg rest portion attaching a leg rest unit having a leg rest face. The seat face portion is attached to the base portion for movement between upper and lower terminal positions, and the leg rest portion is attached to the seat face portion for movement between a stowage terminal position and a use terminal position. The leg rest portion via a rear and a front pivot lever is attached to the seat face portion. A gear device kinematically couples the movement of the seat face portion in relation to the base portion to the movement of the leg rest portion in relation to the seat face portion.

Abstract: The technical description relates to a vestibular optimizer device configured to administer vestibular stimulation to a subject having a head. An example vestibular optimizer device includes a chair having a base, a seat, a back, and a support member, the support member extending from the base to the seat, having a central longitudinal axis, and being attached to the seat, the support member rotatable about the central longitudinal axis, the seat adapted to move toward and away from the base, the chair adapted to move in a first pattern of movements. It also includes a head engaging member attached to the back of the chair and configured to engage the head of the subject, the head engaging member adapted to move in a second pattern of movements.

Abstract: A system and method are disclosed which prevent structural damage to a chair footrest in an aircraft. Aircraft typically include release pins which when pulled out of apertures at different angular positions on arms existing on each side of the seat frame enable a user to set the footrest at different angular positions. To avoid overloading, the pin has been included in a pivotable housing on an axle. Resistance against rotation of the pin is provided using a torsion spring. This enables the resistance to be set at a level that allows the pin to break out to prevent overloading.

Abstract: A seating-unit mechanism includes various components that control a position of the seat and backrest and that control an extension and retraction of an ottoman and footrest. For example, the mechanism includes a linear actuator that controls a seat pitch (e.g., height and level of recline). In addition, the mechanism includes an ottoman-linkage drive mechanism, which might include a drive link or another linear actuator.

Abstract: A reclining seating unit includes: a base; an arm frame; a seat having a seat frame; a backrest mounted and pivotally interconnected to the seat frame; a footrest unit; a reclining mechanism attached to the seat and the backrest, the reclining mechanism configured to control relative movement of the seat and backrest between upright and reclined positions; a footrest mechanism attached to the seat, the footrest unit, and the arm frame, the footrest mechanism configured to control relative movement of the footrest unit and the seat between retracted and extended positions; a first linear actuator attached to the reclining mechanism and to the seat configured to move the seat and backrest between the upright and reclined positions; and a second linear actuator attached to the footrest mechanism and to the seat configured to move the footrest unit between the retracted and extended positions.

Abstract: A lift chair includes a frame assembly including a chair portion rotatable with respect to a base portion. A lift mechanism portion is positioned in a base portion cavity. The lift mechanism portion includes a lift motor and a drive assembly connected to the lift motor having a slide. A lift tube connects the slide to the chair portion. The lift tube upon actuation of the lift motor displaces the chair portion between a nominal and a full lift position by slide displacement in a slide lifting direction. First and second guide members are positioned on opposite sides of the drive assembly and connected to a base portion base platform. The lift tube is connected to both the first and second guide members to distribute a weight load from the chair portion via the lift tube to the slide, and by the guide members to the base platform.

Abstract: A combination lift chair and reclining chair having additional seating and reclining positions is provided with two separate motors and linkages enabling the chair back to be independently placed in various positions and the seat separately movable with the footrest and elevated once the footrest has reached full deployment using the same motor.

Abstract: The portable folding chair is a compact, folding multi-functional chair providing storage for, and interconnection with, a wide variety of auxiliary gear. The portable folding chair includes a seat, a backrest pivotally joined to a rear end of the seat, and a pair of sidewalls respectively secured to a pair of side edges of the seat. An upper edge of each sidewall has a substantially arcuate contour. A substantially U-shaped frame having opposed open and closed ends is provided, with the closed end being adapted for supporting a user's feet. The open end is pivotally secured to respective front edges of the sidewalls. A rear surface of the backrest and the substantially U-shaped frame are each substantially arcuate such that the rear surface of the backrest and the substantially U-shaped frame are positioned adjacent to, and in substantial alignment with, the upper edges of the pair of sidewalls when folded.

Abstract: There is provided a seat back interlocking ottoman device for a vehicle seat configured such that an angle of a seat back relative to a seat cushion can be adjusted and an ottoman is provided to the seat cushion. The ottoman device includes an interlocking mechanism configured to retract the ottoman to a retracted position below the front side of the seat cushion when the seat back is located at a regular usage position and to move the ottoman from the retracted position to an extended position at the front side of the seat cushion to thus support a leg part of a passenger when the seat back is tilted rearwards from the regular usage position. A part of the interlocking mechanism is configured to be operable by an arbitrary operation such that the ottoman can be moved between the retracted position and the extended position.

Abstract: A leg rest assembly includes two connecting boards fixed to an underside of a seat of a chair. An actuation rod unit and a link unit are mounted to each connecting board. A rear end of each link unit is pivotably connected to one of the connecting boards and one of the actuation rod units. Each link unit has a slot aligned with a guiding groove of one of the connecting boards. A guiding rod extends through the slot of each link unit, the guiding groove of each connecting board, and each actuation rod unit. A mounting plate is pivotably connected to a front end of each link unit. An operative rod is operable to cause movement of the actuation rod units and to move the mounting plate between a first position in front of the base and a second position received in a compartment between the connecting boards.

Abstract: The chair-type massage apparatus is characterized in that, when placed with its back facing a room wall, it can be located near the wall and, when its seat is made movable back-and-forth, the leg kneading device mounted at the front of the seat can be used without being obstructed by the back-and-forth movement. The chair-type massage apparatus 1 comprises the seat 2, the base frame 6, and the backrest 3 reclinably mounted at the rear of the seat. During reclining, the upper end of the backrest moves vertically along one vertical line. The leg kneading device is mounted at the front of the seat. The base frame has the seat moving mechanism 15 for moving the seat at least in the front-rear direction, and the seat has the position changing mechanism 16 for effecting positional change of the leg kneading device relative to the seat while maintaining the relative distance.

Abstract: A furniture member mechanism includes a first actuator device electrically operated to displace first and second seat back actuation links connected to and operating to rotate a seat back member between upright and fully reclined positions. A pantograph linkage set connected to a leg rest member is at least partially supported in an extended position by rotational contact with a support rod. A second actuator device identical to the first actuator device is electrically operated to axially rotate a drive rod connected to a drive link. The drive link is connected to and displaces the pantograph linkage set between the stowed and extended positions. A swing lever rotatably connected to the support rod is rotated during operation of the second actuator device to extend the pantograph linkage set. The swing lever in a fully rotated position displaces the support rod creating a furniture member tilt position.

Abstract: A gliding and reclining seating unit includes: a base; a generally horizontally-disposed seat; a generally upright backrest positioned above the base and substantially rearward of the seat; an extendable ottoman; a reclining mechanism attached to the seat, the backrest, the ottoman and the base; and a gliding mechanism attached to the base and the reclining mechanism. The seating unit further comprises: a manually-operated lock linkage that moves between an unlocked condition, in which the linkage permits the seating unit to glide and a locked condition, in which the seating unit is prevented from gliding; and an automatic lock linkage coupled to the reclining mechanism, the automatic lock linkage configured to move between an unlocked condition that allows the seating unit to glide when it is in the upright position and a locked condition that prevents the seating unit from gliding when it is in the fully reclined position.

Abstract: A combination lift chair and reclining chair having additional seating and reclining positions is provided with two separate motors and linkages enabling the chair back to be independently placed in various positions and the seat separately movable with the footrest and elevated once the footrest has reached full deployment using the same motor.

Abstract: A furniture member mechanism includes a first actuator device electrically operated to displace first and second seat back actuation links connected to and operating to rotate a seat back member between upright and fully reclined positions. A pantograph linkage set connected to a leg rest member is at least partially supported in an extended position by rotational contact with a support rod. A second actuator device identical to the first actuator device is electrically operated to axially rotate a drive rod connected to a drive link. The drive link is connected to and displaces the pantograph linkage set between the stowed and extended positions. A swing lever rotatably connected to the support rod is rotated during operation of the second actuator device to extend the pantograph linkage set. The swing lever in a fully rotated position displaces the support rod creating a furniture member tilt position.

Abstract: A release system for a furniture member leg rest assembly extended from an actuation mechanism includes an actuation mechanism, the actuation mechanism having a leg rest assembly movable between a fully retracted and a plurality of extended positions inclusive, including a fully extended position. A pantograph link of the leg rest assembly is rotatably connected to the actuation mechanism. An extension link is rotatably connected to the actuation mechanism and moves in extension and retraction directions. A member is in contact with the extension link and in releasable contact with the pantograph link. The member is in contact with the pantograph link when the member is operating to push the pantograph link outward toward the fully extended position. The member is spatially separable from the pantograph link when an object is contacted by the leg rest assembly during return from any of the extended positions toward the fully retracted position.

Abstract: A hinged fitting for an article of seating furniture, which has a supporting element which is capable of being swung, by means of a swing over joint, from a basic position to the side of the seat to an end position that is located in front of the seat to form a leg rest, with the top or lateral surface of the supporting element in the basic position becoming the bottom surface thereof in the end position, has a displacement device, by means of which the end position of the supporting element can be displaced to a position in front of the seat or the base frame of the article of seating furniture beyond the position defined by the swing over joint.

Abstract: A four-bar linkage system for a chair having a leg rest extension, the linkage system having a first set of linkage members of irregular geometric shapes connected at one end to an outboard portion of a leg extension platform and at a second end to a seat member. A second set of linkage members of irregular geometric shapes is connected to the first set of linkage members and at one end to an inboard portion of the leg rest platform and at a second end to the seat member.

Abstract: A workstation for a user comprising a basis, an shaft pivoted on the basis, a seat pivoted on the shaft, a back rest connected to the shaft, at least one shaft piston connecting the basis to the shaft and at least one seat piston connecting the shaft to the seat. The shaft and the seat are arranged to allow a user to sit at the workstation. The at least one shaft piston and at least one seat piston are arranged to allow changing the position of the shaft and of the seat. The orientation of the shaft and the orientation of the seat are adjustable by the user.

Abstract: A pedicure lounger for supporting a person during a pedicure comprises a seat support, a foot support and a mover assembly. The seat support supports at least a portion of the person during the pedicure. The foot support is coupled to the seat support. The mover assembly selectively moves the foot support relative to the seat support rotationally and translationally between an extended configuration and a retracted configuration. The mover assembly includes a hinge member that is coupled to the foot support. Further, the hinge member provides a rotation axis about which the foot support rotates relative to the seat support. Moreover, the hinge member is slidable relative to the seat support. In particular, the hinge member can slide translationally relative to the seat support during translational movement of the foot support relative to the seat support.

Abstract: A device for an adjustable piece of seating and reclining furniture with an adjustable angle between the seat and the back of the piece of furniture, wherein on each side of the piece of furniture there is located a fitting projecting upwards from its base, the seat being tiltable about a forward suspension point on the fitting, and the back being tiltable about a rear suspension point on the fitting, wherein the back upon tilting backwards causes the seat to tilt backwards in that a link is pivotally fastened to a rear part of the seat frame and pivotally fastened to a lower part of the back frame, the pivotal connection of the link to the back frame being located behind and below said rear suspension point. On an increase in the angle between the seat and the back, the angle that the neck rest of the piece of furniture forms with the back is reduced.

Abstract: An article of seating furniture includes a base, a seat and a back. The back includes a reclining mechanism. The seat is interconnected with the reclining mechanism such that reclining movement of the back moves the seat forwardly and upwardly. When the back is fully reclined and the seat is fully raised, an upper surface of the seat is coplanar with an upper surface of the back. A footrest is movable between a retracted position and an extended position. When extended, the footrest is generally coplanar with the seat. The back includes a spine having a lower end pivotably interconnected with the base. The spine includes a seat mounting extension to which the seat is pivotably mounted. Mounting links between the seat and the base provide movement of the seat when the back is reclined.

Abstract: An adjustable leg rest assembly for use with a chair (such as a reclining chair) is described. The adjustable leg assembly supports a foot rest pad and is capable of alternating between a first position (where the foot rest pad is closer to the front of the reclining chair) and a second position (where the foot rest pad is farther away from the front of the chair) to adjust to the physical characteristics of a user of the chair. A pair of retractable scissor linkages supports the adjustable leg rest assembly. The scissor linkages are pivotally secured to the adjustable foot rest on one end thereof and are moveably secured to the chair on the other end thereof as is known in the art.

Abstract: A seating unit comprises: a base; a seat; a backrest; at least one ottoman; a reclining mechanism attached to the base, seat, backrest and ottoman; an ottoman power unit attached to the base and to the reclining mechanism; and a backrest power unit attached to the base and to the reclining mechanism. The reclining mechanism is configured to move the seating unit from the upright position to a TV position, in which the ottoman is generally horizontally disposed in front of the seat, and from the TV position to a fully reclined position, in which the backrest is reclined relative to the seat. The ottoman power unit is configured to drive the seating unit between the upright and TV positions. The backrest power unit is configured to drive the seating unit between the TV and fully reclined positions.

Abstract: A detachable mobile seat includes a first part connected to a motor; a second part attached to the seat; and two links, each connected to the first part, the second part, and a wheel. The links transfer movement of the first part to the wheels. The first part includes a shaft connected to the motor, and two nuts disposed around the shaft that have screw threads in opposite directions and move along the shaft in response to operation of the motor. Each link includes a first link connected to the second part and to the nut, and a second link connected to the nut and to the wheel. The end of each second link that is nearest the wheel is rotatably connected to a connecting arm that has a rotating bar that rotates the wheel in response to operation of the links.

Abstract: A zero gravity wall hugger recliner having a motor drive, seat and backrest assembly that move back and forth on a trolley mounted on the chair base when the seat and backrest assembly move forward with the trolley on the chair base. A bracket attached between the base and seat moves the assembly from an upright to a reclined position. The recliner has a leg rest driven by a control bar attached between the leg rest and bracket for elevation the leg rest when the trolley moves forward and retracts the leg rest when the trolley moves to the rear.

Abstract: An actuator for beds, slatted beds or chairs of the type accommodating, in a cabinet, two drive units based on a spindle and a spindle nut configured as an adjustment element, cooperating with an arm of a rotary shaft for a backrest section and a legrest section, respectively, in the bed, the mattress support or the chair. The two spindles are rotational interconnected and are driven by a common reversible electric motor. By having just one motor and one transmissions, as well as no switching mechanism between the two spindles, a simple and inexpensive structure is provided.

Abstract: This invention is related to a sleep over recliner chair having a footrest mechanism and a recliner mechanism that operate independently of one another. The sleep over recliner chair includes a footrest, a seat, back, and a pair of spaced apart armrests. Further, the sleep over recliner chair includes a base, a reverse tilt mechanism coupled with the base, and a linkage mechanism coupled with the reverse tilt mechanism. The linkage mechanism includes a recliner mechanism and a footrest mechanism. The footrest mechanism is adapted to move between a first, closed position and a second, open position. The recliner mechanism is adapted to move between a first, upright position and a second, fully reclined position. Further, the footrest and recliner mechanisms operate independently of one another.

Abstract: A multifunction office/fitness chair includes a backrest with an armrest and a seat connected with the backrest through a pivot. The backrest is also connected with a footrest through a footrest connection device. The backrest is able to rotate 90 degrees around the pivot, so that the chair can be switched among an office-chair state for work, a recliner state for exercise and a middle state for rest. A user can use the chair of the invention for work and for exercise in a bedroom or an office without limitations to access to equipment, location and time. Using the chair to exercise three to five minutes per day can help lose weight effectively.

Abstract: A combination lift chair and reclining chair having additional seating and reclining positions is provided with two separate motors and linkages enabling the chair back to be independently placed in various positions and the seat separately movable with the footrest and elevated once the footrest has reached full deployment using the same motor.

Abstract: A press-back style reclining seating unit includes: a frame configured to rest on an underlying surface; a seat fixed to the frame, the seat being generally horizontally disposed; a generally upright backrest positioned above the rear portion of the seat; and a reclining mechanism that interconnects the frame and the backrest and controls the movement of the backrest relative to the frame between an upright position, in which the backrest is generally vertically disposed, and a fully reclined position, in which the backrest is more reclined relative to the underlying surface than in the upright position. The reclining mechanism includes an actuating unit that enables the backrest to move to and remain in any partially reclined position between the upright and fully reclined positions.

Abstract: A vehicle seat with an integral retractable step. A generally hollow base is attached to a floor of a vehicle, the base having a pair of side walls. A generally horizontal seat cushion is attached atop the base. A generally vertical seatback is attached at a lower end to at least one of the floor, the base and the seat cushion. A step is slidably coupled to the base, the step being selectively positionable between a stowed position substantially within the base and a deployed position wherein the step extends at least partially outwardly from the base. In the deployed position the step is generally horizontally oriented and is configured to support the weight of an occupant of the seat during ingress and egress therefrom. In addition in the deployed position the step is generally proximate a front surface of the seat cushion such that the front surface of the seat cushion forms a substantially closed step riser.

Abstract: A snap-on leg rest mechanism for a furniture member includes a link having an elongated slot and opposed first and second sides. A polymeric bushing is slidably received in the elongated slot. The bushing includes opposed homogenously joined first and second legs elastically displaceable with respect to each other, the legs defining a U-shape having a shaft receiving aperture therebetween. Opposed first and second bushing wings each abut one of the first and second link sides when the bushing is receiving in the elongated slot. The first wing homogenously extends from a first bushing side and the second wing homogenously extends from a second bushing side. A shaft rotatably received in the shaft receiving aperture is retained by the bushing when the bushing is received in the elongated slot.

Abstract: This invention is related to a sleep over recliner chair having a footrest mechanism and a recliner mechanism that operate independently of one another. The sleep over recliner chair includes a footrest, a seat, back, and a pair of spaced apart armrests. Further, the sleep over recliner chair includes a base, a reverse tilt mechanism coupled with the base, and a linkage mechanism coupled with the reverse tilt mechanism. The linkage mechanism includes a recliner mechanism and a footrest mechanism. The footrest mechanism is adapted to move between a first, closed position and a second, open position. The recliner mechanism is adapted to move between a first, upright position and a second, fully reclined position. Further, the footrest and recliner mechanisms operate independently of one another.

Abstract: A seating unit has a pair of arms that reach to the floor or may be supported by high legs. The arms are attached to a reclining mechanism that is moveably attached to an ottoman, a back, and a seat. The reclining mechanism has an ottoman linkage and a sequence linkage, wherein the ottoman linkage extends the ottoman forward from a closed to a TV position. The ottoman linkage has drive location slightly above an over-center axis when in closed position and directs occupant weight to retract the linkage, but directs weight to extend the linkage when drive location passes through the axis. The sequence linkage has a back arm with an arcuate slot that slidably engages a pin on the ottoman linkage. The pin restricts the back arm from rotating in closed position and the ottoman linkage from retracting when the back is reclined.

Abstract: A biasing element assembly for an article of furniture includes an actuation mechanism to enable a leg rest assembly to move between a stowed position and an extended position and be retained in intermediate positions. The mechanism includes a support shaft, a drive rod spaced apart from the support shaft, and a toggle link coupled to the drive shaft. Multiple apertures are aligned on the toggle link. The biasing element assembly includes a single biasing element having first and second ends. The first end is connected to one of the toggle link apertures. The biasing element second end is a hook that slides along the support shaft. A biasing element spring tension is varied by engaging the first end to different ones of the toggle link apertures. The biasing element slides to align itself on the support shaft where a biasing element length is minimized.

Abstract: A three-position leg rest mechanism includes a link and sector members rotatably supported to the link. The sector members are coupled to a drive rod for rotation therewith. A biased pin engages the sector members and releasably locks with the sector members in each of three positions. A locking link end opposite the sector members is coupled to a support shaft of the actuation mechanism. An elastically compressible member is positioned between the sector members which is partially compressed by the pin as the pin moves relative to the sector members, reducing contact noise between the pin and the sector members.

Abstract: Mechanism for simultaneously turning up and stretching out an extension part (12,112) relative to a reference part (1,101),with a telescopic sliding profile element (10,110) connected to the reference part and to the extension part, The essentially fixed sliding profile element may be connected to said reference part via a pantograph framework The invention also relates to recliner chair constructions involving such mechanism for turning up and simultaneously stretching out a footrest.

Abstract: A seat apparatus for a vehicle includes supporting member and a moving member whose position is adjustable relative to the supporting member while a posture of the moving member is in a predetermined posture comprising a link member rotatably connected to the supporting member and the moving member respectively, a first gear secured to the moving member, a second gear secured to the supporting member and a transmitting gear rotatably supported to the link member. The transmitting gear includes a first partial gear meshing with the first gear and a second partial gear meshing with the second gear.

Abstract: A chair includes a base frame unit, a leg rest frame, an operating unit, and a linkage device. The base frame unit includes a seat frame with front and rear frame portions. The leg rest frame is connected pivotally to the front frame portion of the seat frame, and is pivotable relative to the seat frame between a folded position, where the leg rest frame is disposed under the seat frame and is generally parallel to the seat frame, and an unfolded position, where the leg rest frame is generally coplanar with the seat frame. The operating unit is mounted rotatably on the base frame unit. The linkage device interconnects the operating unit and the leg rest frame, and is responsive to operation of the operating unit for moving the leg rest frame between the folded and unfolded positions.

Abstract: A spring assembly for an article of furniture having a seat assembly supported from a chair frame and an actuation mechanism for enabling a leg rest assembly to move between a stowed position and an extended position. The mechanism includes a support shaft, a drive rod spaced apart from the support shaft, and a toggle link coupled to the drive shaft. The spring assembly includes a spring with a first and a second end and adapted to attach to the toggle link at the first end. The spring also includes a member at the second end adapted to slidably engage the support shaft, whereby the spring aligns itself at a position on the support shaft where the length of the spring is at a minimum.

Abstract: A chair includes a seat rotatably attached to a base with a pivot axle and coupled to the base with an actuator, to adjust the seat relative to the base. A seat back is rotatably attached to the seat and coupled to the seat with another actuator, to adjust the seat back relative to the seat. A foot support is rotatably attached to the seat and coupled to the seat with a further actuator, to adjust the foot support relative to the seat. The seat is adjustable relative to the base, the seat back is adjustable relative to the seat, and the foot support is adjustable relative to the seat with different actuators. The foot support may include a foot pedal slidably coupled to a plate with another actuator.

Abstract: A chair for transporting a patient includes a base frame, a plurality of casters mounted to the base frame, a patient support, and a push bar mounted to a back section of the patient support for use when transporting the patient. A wheel is coupled to the base frame for movement between a downward brake-steer position, facilitating steering the chair during transport of the patient, and an upward neutral position. The patient support includes articulated leg and seat sections. A handle is coupled to the patient support and is movable between a position in which movement of the handle moves the leg section relative to the seat section and a position in which movement of the handle does not move the leg section relative to the seat section.

Abstract: A chair includes a seat mounted on a base, a backrest disposed behind the seat, and a linkage unit interconnecting the seat and a footrest via a support unit. A shaft is rotatably mounted on the seat. The linkage unit includes a first crank arm secured to the shaft for synchronous rotation therewith, a second crank arm having a rear end pivoted a distal end of the first crank arm, and a triangular third crank arm having a first corner pivoted to the seat, a second corner pivoted to a front end of the second crank arm, and a third corner. A fourth crank arm has a front end pivoted to the support unit and a rear end pivoted to the third corner such that rotation of the shaft results in turning of the footrest relative to the seat.