A conveyance to carry humans, such as a wheelchair, is described having levers on each side of the wheelchair that are manually moved forward and backward to propel the conveyance. The user is able to shift into forward, reverse or neutral, brake, and change mechanical advantage (gear ratio), all this without removing the user's hands from the drive levers.

A conveyance to carry humans, such as a wheelchair, is described having levers on each side of the wheelchair that are manually moved forward and backward to propel the conveyance. The user is able to shift into forward, reverse or neutral, brake, and change mechanical advantage (gear ratio), all this without removing the user's hands from the drive levers.

The invention concerns a wheelchair for assisting walking. The wheelchair comprises a chassis, a movable base that can move relative to the chassis between a low seating position and a high walking position, and a device for changing the position of the base. The device for changing the position comprises at least a first arm and a linear actuator. The arm forms a third-class lever. The linear actuator is configured to bias the movable base towards the high position by means of the arm.

An office-type chair includes a base, a height-adjustable pedestal extending upward from the base, a seat assembly including a rear seat part and a front seat part, and a linkage system connecting the pedestal to the seat assembly. The linkage system is adapted to pivot the seat assembly between a lowered position to serve as a task chair and an elevated position to serve as an elevated sitting support. A backrest arrangement may extend from the seat assembly. In the lowered position, the front and rear seat parts are both generally horizontally oriented. In the elevated position, the rear seat part may have a slight forward tilt and be positioned higher than in the lowered position, and the front seat part may extend at a downward angle relative to the rear seat part.

An automatically adjusting comfort method includes measuring pressure applied by a user via a pressure-sensor array, determining a pressure profile based on measurements from the pressure-sensor array, comparing the pressure profile to a first limit, determining a cumulative pressure profile over a predetermined duration, comparing the cumulative pressure profile to a second limit, and adjusting one or more of a plurality of adjusting mechanisms configured to alter the pressure profile for increased comfort of the user when the pressure profile exceeds the first limit or the second limit. An automatically adjusting comfort system includes a pressure-sensor array communicatively coupled to a controller for determining a cumulative pressure profile over time, and a plurality of adjusting mechanisms configured to alter the pressure profile to increase a user's comfort, wherein the controller automatically adjusts one or more of the plurality of adjusting mechanisms based on the cumulative pressure profile.

Systems and methods of wheelchair systems herein provide a wheelchair capable of providing a brace system that moves between retracted and deployed positions to provide a physical support to the legs of the user to assist the user in transition between a plurality of user positions. Embodiments determine a user request for such assistance and then either deploys and/or retracts the brace system. Embodiments provide for assistance independent of additional people, such as aides, to assist the user in moving or transitioning between the plurality of user positions while also allowing or permitting the wheelchair to function normally when the brace system is in the retracted position.

Systems and methods of wheelchair systems herein provide a wheelchair capable of providing a brace system that moves between retracted and deployed positions to provide a physical support to the legs of the user to assist the user in transition between a plurality of user positions. Embodiments determine a user request for such assistance and then either deploys and/or retracts the brace system. Embodiments provide for assistance independent of additional people, such as aides, to assist the user in moving or transitioning between the plurality of user positions while also allowing or permitting the wheelchair to function normally when the brace system is in the retracted position.

A leg assembly configured to be used with a wheelchair that may be constructed of various mechanical and manual powered components to reduce the cost and unreliability of motor, electric, or otherwise non-manual powered adjustable wheelchairs. A combination wheelchair and leg assembly that may be constructed of various mechanical and manual powered components. The leg assembly disclosed may alternatively be motor powered.

A wheelchair includes massaging units integral with both the seat and the backrest. A first massaging unit includes a plurality of vibrating members positioned about the periphery of the backrest that can be activated simultaneously, sequentially, individually or in a random pattern to knead the user's back, shoulders and neck. A second massaging unit includes motorized massaging discs that rotate and linearly reciprocate to provide a unique “rolling” massage to the buttocks and thighs.

A posturally supportive toilet seat apparatus 1 comprising a seat 10 having a base portion 11. The base portion has leg support features 12 and an aperture 13 formed therein for passage of waste therethrough. The apparatus 10 further comprises a back support 14 which extends from a rear end of the base portion 11. The back support 14 and leg support features 12 are shaped, dimensioned, and, in an in use-configuration, adjustable/positionable relative to each other in an oblique relationship. In the in-use configuration, the thighs and torso of a user seated on the seat 10 are encouraged to form an acute interior angle therebetween, with knees locatable above hips, essentially resulting in the user adopting a squat position.