A mobility aid, comprising a first frame member, a second frame member, and at least one pivoting member, which is connected to the first frame member and is pivotably mounted about a pivot axis to the second frame member. The pivoting member can be moved into a use position and into a transport position relative to the second frame member. A first locking device locks the pivoting member relative to the second frame member whenever the pivoting member is in the use position. A second locking device locks the first frame member relative to the second frame member whenever the pivoting member is in the transport position.

A mobility aid, comprising a first frame member, a second frame member, and at least one pivoting member, which is connected to the first frame member and is pivotably mounted about a pivot axis to the second frame member. The pivoting member can be moved into a use position and into a transport position relative to the second frame member. A first locking device locks the pivoting member relative to the second frame member whenever the pivoting member is in the use position. A second locking device locks the first frame member relative to the second frame member whenever the pivoting member is in the transport position.

A wheelchair structure includes a seat body, a rear wheel bracket, a push rod device, and two relatively arranged front wheel assemblies, where the front wheel assembly includes a support member and a first wheel body mounted at the bottom end of the support member, the seat body and the rear wheel bracket are rotatably connected between the support members of the two front wheel assemblies, the push rod device includes a push rod and a driving mechanism for driving the push rod to make a telescopic movement, a first end of the push rod is rotatably connected with the bottom of the seat body, a second end of the push rod is rotatably connected with the rear wheel bracket, the push rod makes the telescopic movement to drive the seat body to rotate between the support members of the two front wheel assemblies.

A wheelchair comprises: an armrest bracket (6), a seat bracket, a backrest bracket (3), and a turning mechanism (64), wherein the turning mechanism (64) is configured to make the armrest bracket (6) and the seat bracket rotate synchronously relative to the backrest bracket (3).

A wheelchair comprises: an armrest bracket (6), a seat bracket, a backrest bracket (3), and a turning mechanism (64), wherein the turning mechanism (64) is configured to make the armrest bracket (6) and the seat bracket rotate synchronously relative to the backrest bracket (3).

A support unit for a modular head support assembly having a right support post and a left support post, said support unit comprising: a support body; a right attachment element and a left attachment element configured for articulation with said right support post and said left support post, respectively, said right attachment element and said left attachment element being disposed at opposite sides of the support body; and an adjustment mechanism configured for selectively adjusting the position of the right attachment element and the left attachment element with respect to each other, at least from an extended position towards a retracted position.

There is described a bariatric wheelchair, in particular a manual wheelchair, that includes a wheelchair chassis, a seating area provided on the wheelchair chassis, a backrest supported onto the wheelchair chassis, as well as front wheels and rear wheels provided on the wheelchair chassis to allow wheeling of the wheelchair. The backrest exhibits a lower backrest portion supported onto the wheelchair chassis, next to the seating area, the seating area and lower backrest portion having a first width (W1) that is selected to accommodate a wheelchair user's nominal hips width (WH) ranging between 500 millimeters and 800 millimeters. The backrest further exhibits an upper backrest portion, in the vicinity of the wheelchair user's shoulders, having a second width (W2) that is smaller than the first width (W1), which second width (W2) is selected to liberate space for movement of the wheelchair user's arms and shoulders and so as not to exceed a wheelchair user's nominal shoulder articulation width (WS) ranging between 400 millimeters and 600 millimeters.

There is described a wheelchair, in particular a manual wheelchair for bariatric or heavy-duty use, that includes a wheelchair chassis, a seating area, a backrest, as well as front wheels and rear wheels, said backrest having a backrest frame supported onto the wheelchair chassis. The wheelchair further includes a rolling support structure forming an integral part of the wheelchair, which rolling support structure is mounted on a rear portion of the wheelchair to support the wheelchair in an upright position in which the wheelchair is tilted back and is supported by the rolling support structure to allow displacement of the wheelchair in the upright position. The rolling support structure includes at least three, in particular four, rolling elements providing rolling support for the wheelchair in the upright position. The rolling elements preferably provide omnidirectional rolling support for the wheelchair in the upright position, and may in particular be ball casters

Apparatus and associated methods relate to a removable power assist for converting a manual wheelchair into an electronic wheelchair, based on configuring a friction roller to releasably engage with a wheelchair wheel, configuring the friction roller when engaged to drive the wheel through a contact surface with the wheel that may be positioned under the wheelchair seating area, or to the side of the wheelchair seating area, or to the underside of an armrest, or in front of a wheelchair wheel, configuring a motor to rotate the friction roller, and moving the wheelchair based on engaging the friction roller and activating the motor to turn the wheel through force by the friction roller against the contact surface with the wheel. Some designs include a lever configured to permit a user seated in the wheelchair to engage or disengage the friction roller. Configuring the friction roller under the wheelchair seating area, or to the side of the wheelchair seating area, or to the underside of an armrest, or in front of a wheelchair wheel may permit wheelchair folding or unfolding without uninstalling the power assist.

Disclosed herein is a backrest interlocking type frame for a foldable wheelchair. The backrest interlocking type frame includes: a seat frame which includes a first horizontal bar and a second horizontal bar spaced apart from each other at a predetermined interval and arranged at the top and the bottom of the seat frame, a first mounting member, a second mounting member, and a third mounting member mounted between the first horizontal bar and the second horizontal bar to be spaced apart from one another, a first bracket mounted on the first mounting member and a second bracket mounted on the second mounting member; a backrest frame which includes a first vertical bar and a second vertical bar formed integrally, wherein one end of the first vertical bar is rotatably mounted on the third mounting member of the seat frame through a first hinge portion, and both ends of a rail are fixed between the second mounting member and the third mounting member of the seat frame; a horizontally foldable frame rotatably mounted on the first bracket and the second bracket of the seat frame; and a transfer block mounted on the rail to move along the rail, wherein one end of a retractor is rotatably mounted on the transfer block through a third hinge portion, the other end of the retractor is rotatably mounted on the second vertical bar of the backrest frame through a second hinge portion, so that the horizontally foldable frame is operated to be folded when the backrest frame is folded downwardly, thereby reducing the overall width of the seat frame.