Abstract: An improved walker includes an adjustable frame with angled portions that provide an ergonomic interface and enhanced stability for a user. The front of the walker includes a wishbone front support frame. Rather than incorporating multiple front legs extending from the top of the walker to the floor, the wishbone front support frame provides clearance on either side of a center front column. This clearance allows users to position, or maneuver, the walker close to adjacent objects. The handrail portions of the walker are pitched at a downward angle running in a direction from the rear to the front of the walker. This pitch moves the operating position of the user close to the front of walker providing a safe and stable operating position.

Abstract: A safety walker is configured to allow easy entry and exit and to provide supports to prevent falls from occurring by incorporating a fall support that extends from a front end centrally back to an extended end. The fall support is configured to extend between a person's legs as they walk within the open area of the safety walker. The safety walker may also have a torso support with a left torso arm and a right torso arm that are pivotably coupled with the support frame and configured to pivot or rotate around a person's torso. An exemplary safety walker has a left and a right hand support that extend along a left and right side of the support frame and a gate assembly that includes a front gate and a back gate that rotate to extend across a front end and back entry end, respectively.

Abstract: Stable transfer of a person from a wheelchair to another support facility, such as a bed or commode, utilizes a support bar having first and second legs depending vertically from respective ends of a transversely extending grip section. In a normal or exercise mode the lower ends of the bar legs can be selectively secured in respective sockets on opposite sides of the wheelchair with the grip section disposed horizontally in front of the wheelchair. In a transfer mode the bar is positioned with the lower end of the first leg removably engaging a bed or other support facility and the lower end of the second leg engaging to one of the wheelchair sockets such that the bar stably secures the wheelchair to the facility and the grip section can be grasped by a person transferring between the wheelchair and the support facility.

Abstract: Medical walker devices and methods of using the same. The present disclosure includes disclosure of a walker, including an upper bar defining a first upper bar end and a second upper bar end, a grip element defined within the upper bar or formed as part thereof, a relative rear end including a rear base portion and a rear base bar, a rear vertical bar coupled to the rear base bar and to the upper bar, a first side wheel structure having a first side wheel bar and one or more first side wheels or castors, and a second side wheel structure having a second side wheel bar and one or more second side wheels or castors; and a front wheel structure including one or more front wheels or castors.

Abstract: A mobility assistance apparatus includes first and second frames positioned on left and right sides of a user; a hinge arm mechanism coupled to the first and second frames; and a securing unit or a walking seat coupled to the frames to transfer at least a portion of the user's body weight from the legs and to transfer weight through the user's hip or pelvis to the first and second frame enabling the user to stand or work for an extended period without requiring the user's arms to hold the frame.

Abstract: A multi-dimensional adjustable device for use in training skiers is disclosed. The ski training device of the present invention provides a horizontal support bar having a cushioned proximal end for comfortably engagement with a skier's chest and an opposite, distal end which can be gripped by a ski instructor. Specifically, a pair of adjustable upward-facing handles is positioned on the support bar to be gripped by the skier after the width between the handles is adjusted in accordance with the width of the skier's shoulders, and after the pair of handles is adjustably positioned along the length of said support bar in accordance with the length of the skier's arms. In this manner, skier leans forward in a proper skiing position. The distal end of the support bar provides a hand grip for the instructor. Also, an additional grip is adjustably positioned near the distal end, which provides an alternative grip for the instructor.

Abstract: Devices used to cue a user to take a step when experiencing a walking disorder, such as a freezing of gait episode, are disclosed. The devices are configured to cue the user with a visual and/or audible cue. The devices include an activation module and a cueing module. The cueing module includes a metronome and a laser light source. The devices are mounted on an assistive mobility device or on the user.

Abstract: The present invention discloses an exoskeleton which comprises a force balance back-carrying unit composed of a back-carrying assisting unit and a front-carrying assisting unit, a hip unit and a lower limb supporting unit, wherein the force balance back-carrying unit transfer the weight of a back-carrying load and/or a front-carrying load to the lower limb supporting unit through the hip unit to achieve the effort of assisting for the back-carrying load and/or the front-carrying load, wherein the length of the hip unit can be adjusted on the left-right plane and the upper-lower plane to adapt to wearers with different body types. On the other hand, the exoskeleton of the present invention is also provided with a buffer device to reduce the impact of the loads on the exoskeleton. The exoskeleton of the present invention also adopts quick-release joints, so as to modularize each part and standardize a docking interface of each module.

Abstract: Devices used to cue a user to take a step when experiencing a walking disorder, such as a freezing of gait episode, are disclosed. The devices are configured to cue the user with a visual and/or audible cue. The devices include an activation module and a cueing module. The cueing module includes a metronome and a laser light source. The devices are mounted on an assistive mobility device or on the user.

Abstract: A mobility device positionable between a powered transport position and a powered wheelchair position is provided. The mobility device includes a frame including a pair of side rails, a pair of wheels on each side rail, a distance between each wheel on a corresponding side rail defining a length of the mobility device, a pair of arms coupled to an end of the pair of side rails, and a seat member positioned between the pair of arms. A pair of foot plates is pivotally attached to the pair of side rails and rotatable between an unfolded position in which the foot plate is horizontal and a folded position in which the foot plate is vertical. Each foot plate having a length at least substantially equal to the length of the mobility device.

Abstract: The present invention relates to an improved walker device that is used to assist infants and toddlers in learning how to stand or walk. The improved walker has an integral structure and includes a vertical member, a cross member, a longitudinal member, a diagonal support member, a plurality of wheels, and a handle grip. The cross member has wheels at opposite ends and the longitudinal member extends horizontally from the middle of the cross member and has a wheel at the free end. The plurality of wheels work in conjunction to move the walker when forward force is applied to the handle grip. The wheels also ensure smooth movement over a floor surface, allowing the child to walk independently under adult supervision. The improved walker may have adjustable braking pads and/or wheels with treads for traction to control the speed of the improved walker.

Abstract: A walker adapted for attachment to a wheelchair may be used to assist a user with walking while retaining the wheelchair in close proximity behind the user for use when the user needs to sit. The walker may be removably attached to the frame of the wheelchair for easy exchange of use from one wheelchair to another. A pivotable, removably attachable gate between two lateral frame members may allow for the walker to be manipulated from a walking position to a stored position. The gate may include an extendable width to allow for use with wheelchairs of different widths. A frame of the walker may be extendably attached to the wheelchair, thereby allowing the user to extend and retract the walker between the walking position and the stored position.

Abstract: A convertible, self-propelled, motorized mobility assistance device in a plurality of embodiments is provided, comprising a scooter-like chassis (1400) with support deck (300) portion, a handlebar (700), and at least one removable, interchangeable knee rest (800) or seat attachment (1300); wherein the device is mounted atop and driven by at least three motorized wheels (400, 500) which are connected to a source of power and propulsion (1200), and drive (1100). The device further includes a steering system, braking system, and mechanisms for height-adjustability, comfort, and portability.

Abstract: A position-adjustable accessory handle device helps a user maneuver a rollator. The handle device provides an arced handle bar that detachably fastens to a rollator handle, serving as an extension. An adjustment bracket fits between handle bar and rollator handle, allowing the handle bar to adjustably articulate in height and angle, relative to the rollator handle. The handle bar has a short proximal section and a long distal section. An arced bridge extends therebetween. The bridge orients the proximal section towards the user, and allows for fastening to different rollators. The proximal section of handle bar has a grip member for gripping. Fastening holes form in the distal section of handle bar. An adjustment bracket fits between handle bar and rollator handle. This creates frictionless pivoting articulation of the handle bar; and to enable the handle bar to be fixedly oriented at a set angle relative to rollator handle.

Abstract: A device that can be quickly and easily mounted on a wheelchair for assisting a wheelchair user to safely exit or enter a wheelchair that includes a support having a horizontal top rail, the top rail having a first end and a second end, a first leg depending downwardly from the first end, and a second leg arranged opposite and parallel to the first leg, the second leg depending downwardly from the second end. The device further includes a bracket attached to the wheelchair, the bracket is constructed to engage with a bottom of the first leg such that when the bracket and bottom of the first leg are engaged, the device may be used to enter or exit the wheelchair.

Abstract: A wheelchair accessory apparatus is disclosed. The wheelchair accessory apparatus includes an ambulatory assistive device retaining member removably attachable to the frame of a wheelchair and an ambulatory assistive device support member removably attachable to the footrest of a wheelchair. The ambulatory assistive device retaining member includes a first leg, a second leg, and an elongated stem. The first leg and the second leg join and define a portal therebetween to receive an ambulatory assistive device therethrough. The ambulatory assistive device support member includes a body comprising a cup sized to removably receive a crutch tip. When the ambulatory assistive retaining member and the ambulatory assistive device support member are both attached to the wheelchair, the portal and the cup align to receive and sustain an ambulatory assistive device therein for hands-free transportation of the ambulatory assistive device while utilizing a wheelchair.

Abstract: A subject support apparatus includes an upper portion including a torso panel having a first end and a second end, a loop strap having a first free end extending from the first end of the torso panel and a second free end extending from the second end of the torso panel and configured to couple the first end of the torso panel to the second end of the torso panel to form a closed loop, and a pair of shoulder straps coupled to the torso panel and extending from a top edge of the torso panel. The subject support apparatus also includes a lower portion coupled to the pair of shoulder straps and extending from a bottom edge of the torso panel. The lower portion has a seat piece having a front end and a rear end.

Abstract: A three- or four-wheeled mobility walker/rollator including a foldable or collapsible frame assembly including a main or anterior frame assembly and a posterior frame assembly, three or four wheels coupled to the bottom or base of the frame assembly, and at least two crossbar handles coupled to the top of the frame assembly. The crossbar handles are placed one in front of the other with the first posterior crossbar handle being aligned with or slightly behind the middle of the back wheel posterior to the bottom of the walker frame. The crossbars can be of a sufficient width and curvature to provide a continuous support for the forearms when the user is standing, and can provide more frontal plane stability and balance during locomotion compared to the handles of a traditional walker.

Abstract: Fill stations and base stations are provided for personal pump systems. The fill stations may be opened and closed to accept a reservoir and to allow fluid to be introduced into the reservoir for use with personal pump systems. The fill stations may hold the reservoir at a tilt relative to an underlying surface and may discourage overfilling of the reservoir. The filling stations may also include viewing windows having fluid lines marked thereon for indicating volume of fluid within the reservoir.

Abstract: Provided are mechanisms and processes for an adjustable mobility assistive device. In various examples, the adjustable mobility assistive device includes a first frame including a slotted rail S1 and a slotted rail S3 coupled by post P1 and post P3. Both slotted rail S1 and slotted rail S3 may be quarter circular in shape. The adjustable mobility assistive device also includes a second frame including a slotted rail S2 and a slotted rail S4 coupled by post P2 and post P4. Both slotted rail S2 and slotted rail S4 may be quarter circular in shape. Post P2 is slidably connected to slotted rail S1 and slotted rail S3, and post P3 is slidably connected to slotted rail S2 and slotted rail S4. Post P2 is adjacent to post P3 when in a fully extended position and post P1 is adjacent to post P2 and post P3 is adjacent to post P4 in a retracted position.

Abstract: A physical assistive robotic device may include a frame including an upright support member, a lateral member slidably engaged with the upright support member, a handle slidably engaged with the lateral member, an elevation actuator coupled to the upright support member and the lateral member, and a lateral actuator coupled to the lateral member and the handle. The elevation actuator translates the lateral member and the lateral actuator translates the handle to transition a user between a standing position and a non-standing position.

Abstract: A device for assisting a person to climb up or down a stairway. A pair of frame rails extend longitudinally parallel with each other and spaced apart by a distance wide enough to receive a person's knee on a leg support member suspended by the frame side rail members and a transverse front member of the frame. Front legs of the device are shorter than rear legs so that the frame side rail members are horizontal when the device is on a stairway. A stabilizer member extends above the next step above the one on which the front legs are placed, and a handle is supported above one of the side rails to support the user's weight during use of the device.

Abstract: The present invention is a mobility device, (also referred to as a “rollator”), which provides a weight bearing architecture and enables the user to maintain an erect body posture and body weight support through the upper arms while enabling the legs to freely move under the user's center of body weight. Upper arm support is enabled through padded forearm rests, or “arm saddles”, which provide an elevated cushion rearward to support and position the user's elbows and transfer the center of the body weight vertically downward and through the rollator frame and thereby falling within its base of support as defined by its four support wheels. The invention's base of support is smaller than conventional rollators, thereby enabling responsive rotational movement by transferring the user's spinal rotation through the aforementioned arm saddles to the rollator frame resulting in a low-radius turn.

Abstract: An exercise device for improving thumb strength in a user of a thumb-driven throttle machine is provided. The exercise device comprises a shaft component, a grip component, and the throttle component, and generally resembles a right side of a handle of a vehicle having a hand throttle mechanism. The exercise device allows a user to exercise a thumb by moving a throttle component from a relaxed position to a position under tension.

Abstract: A juvenile walker includes a rolling base and a child restraint coupled to the rolling base to move therewith. The child restraint is adapted to support a child using the juvenile walker. The rolling base includes a lift carrier and a child-restraint lift coupled to both the child restraint and the lift carrier to vary a height of the child restraint above ground.

Abstract: A training apparatus for a Nordic walker has an elongated pole whose lower end carries at least one wheel having a freewheel permitting rolling of the wheel on the surface only in a forward travel direction. A forearm rest is freely pivotal on an upper end of the pole and defines with the pole an angle increasing on forward rolling of the wheel from a position behind the athlete to a position in front of the athlete as the arm in the rest swings forward in the travel direction. A handgrip fixed on a front end of the forearm rest is gripped by a hand of the forearm in the rest and pivots with the forearm rest. A spring braced between the rest and the pole and pivotally biases the rest so as to increase the inclination angle.

Abstract: A walker apparatus includes a framework having upstanding front and rear support members connecting upper and lower sections. The upper section is mounted atop upper ends of respective front and rear support members. The upper section includes a pair of side members each having opposed front and rear ends coupled to respective front and rear support member upper ends. The upper section includes a rear support member extending between rear ends of respective upper section side members. The upper section includes a front support member pivotally coupled at a proximal end to a front support member upper end and releasably coupled to another so as to be movable between open and closed configurations. The apparatus includes a lower section having first and second supports bars each having an outwardly arcuate configuration and positioned so as not to create a trip hazard when the front support member is open.

Abstract: A manually-operated lunge exercise device and methods of performing a lunge exercise using the same. The provided device may comprise at least one guide bar, at least one track operably connected to the guide bar, one or more wheels, and a plate. The plate is slidably engageable with the track and moveable along the guide bar through engagement with at least one wheel, said wheel being rotationally engaged with the track.

Abstract: Knee walker assemblies and methods of manufacturing a knee walker assembly are provided herein. One concept of the present disclosure is directed to a knee walker assembly that includes a frame, a support platform and a handle mounted to the frame, at least one rear wheel mounted proximate the rear end of the frame, and at least two front wheels swivel mounted proximate the front end of the frame. A locking mechanism is operatively engaged with the at least two front wheels. The locking mechanism is configured to substantially simultaneously lock both of the at least two front wheels in a rigid-type mounting configuration.

Abstract: An infant muscle training apparatus includes an apparatus base, an apparatus frame carried by the apparatus base and at least one assistance harness carried by the apparatus frame. The assistance harness has at least one resilient or elastic assistance band carried by the apparatus frame and a flexible, U-shaped arm strap carried by the assistance band.

Abstract: A posterior walker has an anteriorly open, wheeled frame having a transverse posterior structural member, a left and right forearm support member attached to the frame, and adapted to be aligned with the forearms of a user at an angle wherein the user's wrist is lower than the elbow, and left and right hand grips associated with the left and right forearm support member.

Abstract: An up-right walker for supporting a patient with up-right posture. The up-right walker includes a pair of opposing side frames joined at a leading edge by a connecting frame, the pair of opposing side frames and connecting frame forming a support structure with an opening for receiving a user therebetween. A first and second body support structure is coupled to the pair of opposing side frames and connecting frame and forming an angled slope with respect to a floor surface, the first and second body structure arranged to support the user in an upright position.

Abstract: Example ambulation aid apparatus and associated methods of manufacture are disclosed and described herein. An example ambulation aid apparatus includes an ambulation aid body formed as a integral part, the integral part formed in monocoque construction to provide support for mobility of a user through the integral part, the integral part providing a plurality of grippable areas to facilitate user movement and support through the integral part. Another example ambulation aid apparatus includes a primary panel formed in monocoque construction to provide support for and assist in mobility of a user through the skin of the monocoque primary panel, the primary panel formed to interrelate with one or more subassemblies to provide an integrated monocoque part to assist in providing support for and improved mobility of the user through the integrated monocoque part. Example methods of manufacture are also disclosed and described.

Abstract: A mobility apparatus for a patient permitting improved mobility is disclosed. The apparatus includes a frame assembly, a locomotion assembly, a forearm support assembly, a kinematic and kinetic feedback assembly and optionally a back support assembly, where the apparatus provides mobility assistance, while permitting visualization of movement velocity, loaded and unloaded motion, and other information concerning a patients proper use of the mobility assistance apparatus.

Abstract: A method of producing a natural gait by a patient using an ambulatory device having a patient positioned in the middle of the ambulatory device to allow for an upright trunk, minimizing abnormal lower extremities kinematics and weight bearing on arms. By having hinged corners with an adjustable friction the device allows reciprocal arm swing when unlocked. The use of four wheels permits a continuous stepping motion that does not disrupt normal gait kinematics. Having an adjustable height allows the ambulatory device to have an optimal height for placement of patient hands that minimizes weight bearing on arms.

Abstract: An exercising device includes a handle, at least one support member secured on the handle, at least one rotation wheel rotatably mounted on the handle, and at least one elastic cord mounted between the at least one support member and the at least one rotation wheel. Preferably, the exercising device comprises two support members, a rotation wheel and a plurality of elastic cords. Thus, the elastic cords are mounted between the rotation wheel and the support members to provide a buffering effect to decelerate the forward movement of the rotation wheel and to provide a pulling force to accelerate the backward movement of the rotation wheel so as to balance the forward and backward movement of the rotation wheel and to prevent the user from being strained or hurt during the reciprocal movement of the rotation wheel.

Abstract: The present invention relates to a tray for use with a walker. The tray includes a generally rigid tray base having an essentially rectangular shape with a front long side, a back long side, a first short side and a second short side, and wherein the tray has a length that extends to or past the essentially horizontal support member; a ridge extending along the sides of the tray, wherein the ridge has a height of at least about a ½inch; a strap having a hook and loop fastener wherein the strap is positioned at or near the back long end; and a first hinge and a second hinge, the first and second hinges are positioned, when the tray is in use, at or near the front leg of the first and second support, respectively. The length of the tray is greater that the distance between the support member of the first support and the support member of the second support; and the width of the tray is less than the length of the support member of the first support or second support.

Abstract: The medically equippable walker device provides numerous important features to aid a patient in ambulation and in personal medical equipment carriage. The inverted U's may provide wheels in front and feet in the rear so that a user can easily walk as desired, by tilting the walker off of the feet, and also maintain stability when stopped by allowing the feet to be firmly planted. One side of the device provides two cross rails that are ideal for the sleeves to slideably adjust for desired positioning of a ring and a basket to hold an oxygen tank securely. The second side inverted U holds like upper and lower cross rails with an adjustably positioned rail between. Any number of right angled supports are provided for the carriage of various medical equipment such as IV bags and urine bags, for example.

Abstract: The present invention is directed towards a wheeled crutch that supports an injured human lower limb with the injured limb extended towards the front of the user. The wheeled crutch comprises a seat attached to a seat support, and a wheeled base with at least three legs. A lower limb support and foot rest allow the user to rehabilitate the injured lower limb while remaining ambulatory.

Abstract: A posterior walker is disclosed comprising: a foldable, tubular frame; adjustable handles; wheels including anti-rollback wheels in the back and pivoting wheels in the front; a flexible, adjustable lower back support strap; features to adjust the handling and stability of the walker, to meet the mobility and standing needs of persons with unsteady gait and standing posture, namely an adjustable weighting means; and optionally backpack storage. In one embodiment, the adjustable weighting means is provided by use of weighted stability cuffs.

Abstract: The present invention relates to a balance compensation apparatus to be used by persons with one dysfunctional leg and one operative leg. In particular, the invention relates to an apparatus with a frame having at least one lateral support with an aperture for slidably engaging a kneeling platform assembly and a steering column that is mounted on the frame to be offset from a longitudinal centerline of the frame. A handlebar is connected to the steering column. The platform and the handlebar are adjustable for added comfort, control and stability. The platform assembly may be offset of the longitudinal centerline to a side in common with the steering column and have cushions for added comfort. A hand brake may provide stability and safety and the steering column may fold for easy storage.

Abstract: A powered mobile lifting, gait training and omnidirectional rolling apparatus is for personal use by persons with complete loss of motor function in lower limbs for assisted walking in an upright position in desired direction of indoor and outdoor. All operations including bringing the apparatus to a user, ingress, walking around and egress are performed by users without assistance of other persons. The apparatus lifts the user from a floor, wheelchair or elevated surface, its overall size enables passing through narrow passageways, and omnidirectional wheels provide top maneuverability. Rotation of powered omnidirectional wheels is coordinated with motion of gait stimulation devices that drive user's feet, resulting in simulated walk.

Abstract: An improved walker apparatus for a user with a pedestal having a plurality of attachment holes for attaching a variety of devices.

Abstract: A baby walker is disclosed, comprising a base, having an adjustable link at each of its two laterals and a plurality of rollers at its bottom; and a surround, having two regulators sustained by the top ends of the adjustable links, where the two regulators are adjusted until a width is reached to accommodate each riding infant child, and some fixing members are used to encircle the child for holding his/her body, which is just like holding by somebody's hands, where the child's weight is fully sustained and his/her body is kept in a balanced gesture, which brings about good sense of security and comfort to the child whenever he/she is learning to walk.

Abstract: A walker is disclosed that may be adjusted in width during use for allowing the user to pass safely through narrow doorways or passageways. Walkers of the present invention have crossbars at a front thereof constructed of telescoping tubing and locking/unlocking mechanisms. During use, the telescoping tubes may be unlocked so that a smaller tube may be moved into a larger tube, reducing a width of the walker. In other embodiments, a lead screw assembly may be rotated in order to reduce width of the walker. In yet other embodiments the walker may be automatically increased or decreased in width responsive to the tubes being unlocked.

Abstract: A portable support or goal assembly includes, among other things, a top frame portion, a base frame portion, two or more post frame members, and a plurality of releasably lockable hinge connectors. The portable support assembly provides support for a user and includes a U-shaped top frame portion configured to be gripped by the user and a U-shaped base frame portion having wheels or low-friction feet to facilitate mobility on a support surface. The goal assembly provides a U-shaped goal opening defined by an aligned top frame portion supported at each end by vertically extending side post members, the latter of which are attached to a U-shaped base frame portion. In one example, the top and base frame portions, the post frame members, and the hinge connectors are reconfigurable between the support assembly, the goal assembly, and a collapsed orientation. Also discussed is a method for assembly reconfiguration.

Abstract: A wheeled walker for training an individual to walk by enabling hip flexion. The walker is equipped with a pulley located between two anchors points to which the ends of an elastic cord are attached a middle portion of the elastic cord runs over the pulley. A first harness for receiving a foot of the user is slidingly coupled to the segment of the elastic cord located between the first anchor point and the pulley. A similar harness for receiving the other foot of the user is slidingly coupled to the segment of the elastic cord located between the second anchor point and the pulley.

Abstract: An activity walker has three wheeled legs positioned about an adjustable trunk surround member. The trunk surround member is hinged to open and is curved to approximate a users oval-shaped midriff. An adjustable closure on the torso/trunk surround member compensates for users of various girths. A flexible sling support extends across the interior of the surround member from its rear portion to its front portion, with fixed rearward attachments and a releasable front attachment to the interior of the surround member. This sling support is shaped to pass between a user's legs and provides body/trunk support when the user is standing upright. A length of each leg may be adjustable. The lateral extension of each leg outwardly from the surround member may be adjustable to reconfigure the stance/footprint of the walker. A friction pin may be utilized to adjust the rolling rate of each wheel.

Abstract: A walker includes a universal mount adapted to interchangeably receive multiple different attachments useful for a patient using the walker. A single walker may have an array of attachments adapted to be interchangeably used by a particular user. Alternatively, a care provider may stock a single walker available for use by many different patients, because individual needs may be met by the different attachments that may be interchangeably used with the mount on the single walker.

Abstract: The present invention relates to a tray for use with a walker. The tray includes a generally rigid tray base having an essentially rectangular shape with a front long side, a back long side, a first short side and a second short side, and wherein the tray has a length that extends to or past the essentially horizontal support member; a ridge extending along the sides of the tray, wherein the ridge has a height of at least about a ½ inch; a strap having a hook and loop fastener wherein the strap is positioned at or near the back long end; and a first hinge and a second hinge, the first and second hinges are positioned, when the tray is in use, at or near the front leg of the first and second support, respectively. The length of the tray is greater that the distance between the support member of the first support and the support member of the second support; and the width of the tray is less than the length of the support member of the first support or second support.