A mobility device (1) comprising: a main frame (3) having a central longitudinal axis which coincides with the median plane of the mobility device (1), an elongated body support member (13b) which has a central longitudinal axis (At) that is contained in a median plane of the mobility device (1), the body support member (13b) being pivotally connected to the main frame (3) via a medial pivot connection (17), and an elongated rotation transfer member (13c) rotatably connected to the body support member (13b), wherein the rotation transfer member (13b) has a central longitudinal axis (A2) which extends transversally relative to the central longitudinal axis (At) of the body support member (13b).

A convertible transport system including a seat portion, a back support portion, and a pivoting mechanism coupled to the seat portion and to the back support portion. The pivoting mechanism is configured to adjust and lock the back support portion relative to the seat portion, the pivoting mechanism having three operative states: a free pivoting state allowing the back support portion to pivot relative to the seat portion about an axis; a ratcheting state allowing the back support portion to only pivot toward the seat portion about the axis; and a locking state in which the pivoting mechanism is locked to thereby prevent a pivoting movement of the back support portion relative to the seat portion.

The present disclosure relates to a seat arrangement (1) for an electrically powered wheelchair, wherein the seat arrangement comprises (1): a mounting arrangement for mounting the seat arrangement (1) to a chassis of an electrically powered wheelchair, a seat frame (3), a backrest frame (5), a backrest actuator (7), wherein the backrest frame (5) is pivotally coupled to the seat frame (3), forming a first pivot axis (A1), and wherein the backrest frame (5) is pivotally coupled to the backrest actuator (7), forming a translatable second pivot axis (A2), a retaining mechanism (11) arranged to retain the backrest frame (5) in an upright position while the backrest frame (5) is subjected to a forward-tilting force smaller than a threshold value, wherein the retaining mechanism (11) is arranged to allow movement of the backrest frame (5) to a forward-tilted position when the backrest frame (5) is subjected to a forward-tilting force equal to or greater than the threshold value, and a locking mechanism (13) arranged to lock the backrest frame (5) in the forward-tilted position. An electrically powered wheelchair comprising a seat arrangement is also disclosed herein.

The invention relates to a backrest for supporting the back of a seated person, the backrest comprising mounting means for mounting the backrest on a frame of a seating device; comprising: —a first back part for supporting at least a part of the back of the person at a determined angle, which first back part has a stiffness such that during use the part of the back shapes itself substantially to the first back part, and wherein the backrest comprises adjusting means for adjusting the angle and/or the position of the first back part relative to the frame; and —a second back part which has a flexibility such that during use the second back part shapes itself substantially continuously to another part of the back of the person. The invention further relates to a method for adjusting such a backrest and a (wheel) chair provided with such a backrest.

An exemplary seat having seat connection mechanism for attaching the seat to a wheelchair includes a seat frame and a backrest. The backrest is pivotably connected to the seat frame through a pivoting mechanism. The seat further includes a biasing member connected to the backrest at a first connection point and a second connection point near the seat frame. The second connection point and the pivoting mechanism are spaced apart from one another by a distance C. The seat further includes an adjustment mechanism adapted for changing the distance C. The second connection point may be connected to a guide arm, such that the position of the second connection point is adjustable by sliding the second connection point along the guide arm, thus making the distance C adjustable.

A chair includes a frame unit including a seat frame, a leg rest that is pivotally mounted to the seat frame, and a rest adjusting mechanism that is connected between the leg rest and the seat frame. The rest adjusting mechanism is convertible between an unlocked state, where the leg rest is permitted to pivot relative to the seat frame, and a locked state, where the leg rest is not permitted to pivot relative to the seat frame.

A backrest fixation system (1) for a wheelchair, wherein the backrest fixation system (1) comprises a seat frame member (3) having a groove side (3a) provided with a first groove (5) having first groove retaining surfaces, which seat frame member (3) has a first lateral side (3b) and a second lateral side (3c) parallel to each other and which define lateral sides of the groove side (3a), a first groove insert member (9) arranged in the first groove (5) and retained in the first groove (5) by means of the first groove retaining surfaces, a backrest attachment member (15) having a first backrest attachment member through-opening (15a), a first fastener (17), and a reinforcement member (13) arranged between the backrest attachment member (15) and the groove side (3a) of the seat frame member (3), which reinforcement member (13) has a first leg (13a) and a second leg (13b), wherein the first leg (13a) extends along the first lateral side (3b) of the seat frame member (3) and the second leg (13b) extends along the second lateral side (3c) of the seat frame member (3), wherein the first groove insert member (9) is provided with a first groove insert member through-opening (9a) and the reinforcement member (13) is provided with a first reinforcement member through-opening (13d), and wherein the first fastener (17) extends through the first backrest attachment member through-opening (15a), the first reinforcement member through-opening (13d), and the first groove insert member through-opening (9a). An electrically powered wheelchair comprising a backrest fixation system is also presented herein.

A user control device for a transporter. The user control device can communicate with the transporter via electrical interface(s) that can facilitate communication and data processing among the user interface device and controllers that can control the movement of the transporter. The user control device can perform automated actions based on the environment in which the transporter operates and the user's desired movement of the transporter. External applications can enable monitoring and control of the transporter.

The convertible wheelchair is similar to a conventional wheelchair, but includes a reclining back support and an additional leg support plate. As the back support is pivoted, with respect to the seat, into a reclining position, the leg support plate is driven to pivot upward. When the back support is pivoted into a fully reclining position, the seat, the back support and the leg support plate are positioned parallel and co-planar with respect to one another. Similar to a conventional wheelchair, the convertible wheelchair includes a frame, the seat, which is secured to an upper end of the frame, the back support, which is secured to a rear end of the frame and is pivotally coupled to the seat, a pair of rear wheels rotatably secured to the rear end of the frame, and a pair of front wheels rotatably secured to the front end of the frame.

An adjustable chair includes upper and lower base members, a seat assembly secured to the upper base member, and a chair adjusting mechanism. In an embodiment the upper base member is connected to the lower base member by first and second linking members each having a first end connected to the lower base member and a second end slideably received in corresponding first and second arcuate tracks disposed in the upper base member, such that movement of the second ends into and out of the tracks results in vertical movement of the seat assembly relative to the base. In a further embodiment the seat bottom and seat base comprise cooperating arcuate rails, tracks, and/or bearing members, where cooperative action of the arcuate rails, tracks, and/or bearing members enables the seat bottom to tilt relative to the seat base. In a further embodiment the seat bottom and seat back comprise cooperating arcuate rails, tracks, and/or bearing members, where cooperative action of the arcuate rails, tracks, and/or bearing members enables the seat back to recline relative to the seat bottom.