Abstract: A device for adjusting a wheelchair leg rest, includes a supporting column to the upper end of which is attached a forward, upper part of a wheelchair and to the lower end of which is attached a footrest, wherein at least a lower part of the supporting column is hinge-connected at a link, and where to the lower part of the supporting column, at a distance from the link, there is attached a first, preferably circular-arc-shaped part having a plurality of adjustment holes arranged along a circular arc with origo at the pivotal point of the link, and where to a forward, lower part of the wheelchair there is attached a second, preferably circular-arc-shaped part for locking cooperation with the first part, a plurality of adjustment holes also being provided on the second part along a similar circular arc as for the first part, and where the locking advantageously is effected by a locking bolt passed through two adjustment holes on their respective parts aligned with each other by turning the lower part of the sup

Abstract: A wheelchair includes a seat and a back that are pivotally supported in two side members and are kinematically interconnected in such manner that an angle between the seat and the back will increase when the back is swivelled backwards about its pivotal support in the side members, which kinematic connection comprises a link connection between the seat and the back. The link connection is in the form of a link arm arranged under the respective pivot supports of the seat and the back so that the distance between the back pivot support and the back link arm connection is less than the distance between the seat pivot support and the seat link arm connection, and that the axis of rotation of the seat through the seat's pivot support in the side members passes essentially through or close to the user's center of gravity.

Abstract: A wheelchair (1) is described. The chair comprises a seat (2) and a back (3) that are pivotally supported in two side members (4, 5) and are kinematically interconnected in such manner that an angle between the seat and the back will increase when the back is swivelled backwards about is pivotal support in the side members, which kinematic connection comprises a link connection between the seat and the back. The link connection is in the form of a link arm (12) arranged under the respective pivot supports of the seat and the back so that the distance between the back pivot support (15) and the back link arm connection (13) is less than the distance between the seat pivot support (16) and the seat link arm connection (14), and that the axis of rotation (20) of the seat through the seat's pivot support (16) in the side members passes essentially through or close to the user's centre of gravity (17).

Abstract: A device for an adjustable chair, where the back of the chair, at a first mounting site on each side thereof, is pivotally connected to respective side members of the chair, and at a second mounting site forms a hinged connection with a rear part of the chair set frame, where the chair seat frame, at a front mounting site on each side thereof, is slidably connected to a respective side member along a front guide which forms a part of the side member. The first mounting site on the chair back is designed to slide along a rear, forward and downward inclining guide in the side member, and the seat frame has on each side a rear mounting site between said front mounting site and said second mounting site for the chair back, said rear mounting site forming a slidable connection with a guide in each respective side member, which is located between the front and rear guides when seen in the longitudinal direction of the side member which is either horizontal or inclines slightly forward and upward.