A seat back support with an adjustable support curvature, the support including: a frame; at least one elongate deformable member extending between side portions of the frame; and an elongate adjustment element that intersects one or more of the at least one deformable member(s), wherein manipulation of the adjustment element adjusts the deformation of the one or more deformable member(s) with which it intersects to adjust the curvature of the back support.

A powered wheelchair is operated by sensor-based control pads that include force transducers to produce a variable output signal that is proportional to a varying force applied. The control pad provides an analog-type output that provides a variable speed signal to a controller to operate the wheelchair at a variable speed in both forward/reverse directions and in right or left turning directions.

An adjustment apparatus for a wheelchair back that can be used with various backs, that can be adjusted in a plurality of ways using a single adjustment point, and that can be adjusted without the use of tools. In another aspect, includes a support mechanism for mounting an adjustment apparatus for a wheelchair back that can be engaged using gravity, that provides at least one support point, and that can be utilized without the use of tools. Still another aspect of the wheelchair back assembly includes a mounting clamp that is simple in construction, that provides at least one support point, and that can be easily disassembled and adjusted to accommodate upright frame members of various diameters without the use of a tool.

An adjustable chair assembly comprising a frame, a seat assembly, a back assembly and at least one of a seat space-filling element and a back space-filling element. The seat assembly extends along a seat plane and comprises a first seat element and a second seat element adjustably positionable with respect to one another along the seat plane and together defining a support surface of the seat assembly. The back assembly extends along a back plane and comprises a first back element and a second back element adjustably positionable with respect to one another along the back plane and together defining a support surface of the back assembly. A central gap is defined in at least one of the support surfaces and the at least one of the seat space-filling element and the back space-filling element is removably insertable in the central gap of the corresponding support surface.

A powered wheelchair is operated by sensor-based control pads that include force transducers to produce a variable output signal that is proportional to a varying force applied. The control pad provides an analog-type output that provides a variable speed signal to a controller to operate the wheelchair at a variable speed in both forward/reverse directions and in right or left turning directions.

An external structural brace apparatus for supporting a user in a semi standing position on a surface includes first and second support extension beams that to attach to the surface, also included is a channel having a base with first and second legs, wherein the first and second legs extend in the same direction from opposing sides of the base, the first leg is affixed to the first support structure and the second leg is affixed to the second support structure, the channel can be lockably positioned along the first and second beams. In addition, a saddle seat with a midpoint extension portion, the saddle is attached between the first and second legs and positioned such that the midpoint extension extends opposite of the base, wherein operationally the user partially rests their buttocks on the saddle and leans their back against the base to assume a semi supported standing posture.

A robot according to an embodiment may include at least one driving motor for providing a driving force for driving of the robot, a position detector including at least one sensor or receiver for detecting a position of the robot, a pressure detector including at least one sensor for detecting whether a user who in on board the robot gets off the robot and a processor for detecting the position of the robot through the position detector, recognizing that the user has arrived at the destination when it is detected that the user gets off the robot and recognize that the user has not arrived at the destination when it is not detected that the user gets off the robot.

The present invention relates to a wheelchair improvement kit and a manual wheelchair. The improvement kit includes an anti-tip device including a pair of multifunction tube assemblies. Each multifunction tube assembly includes a mount tube configured for pivotally mounting one on each side of the wheelchair, a slide tube slidably engaged to the mount tube where both ends of the slide tube extend beyond the mount tube, a slide tube brake engaging or releasing the position of the slide tube relative to the mount tube, and an extendable pole inserted into the top of the slide tube. The top of the extendable pole is fitted with a hand grip. The anti-tip device further includes a pair of guide tubes configured for mounting one on each side of the wheelchair. When the multifunction tube assembly is used as the anti-tip device, the slide tube passes through the guide tube.

An adjustable connection joint has a partially shaped spherical member attached to a first member to be adjusted with respect to a second member. A slidable base member slides in a bushing which is attached to the second member. A bolt extends through a washer that spreads a slotted end of the slidable base member against the bushing. Tightening the bolt pulls a locking member against an inside of the partially spherically shaped member and pulls it against a conical cavity on an end of the slidable member. Tightening the bolt concurrently locks the slidable member in the bushing and locks a position of the partially shaped cylindrical member in the conical cavity at the end of the slidable member.

A backrest assembly of a wheelchair seat has a tubular seating frame. The backrest assembly includes a backrest, two hollow backrest tubes connecting the backrest to the seat, and at least two joints allowing movement of the backrest tubes between at least first and second end positions. Two locking means are provided for locking and/or unlocking the joints. A hollow handle tube has a single handle for effecting the locking means which is arranged between the backrest tubes and mechanically connected to the locking means via cables. The handle further effects movement of the backrest tubes, via the joints, with use of one hand in constant grip of the handle. The handle is actuated by at least partly sliding, rotating, squeezing, pushing and/or pulling. The locking means automatically re-locks after unlocking and reaching the first or second end positions.