Abstract: 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.

Abstract: The present invention provides an improved wheelchair—comprising a chassis, which has a lower chassis section pivotally connected to an upper chassis section, such that the upper chassis section can pivot in relation to the lower chassis section about a substantially horizontal axis;—where said lower section comprises two substantially parallel load carrying members, oriented in a direction parallel to the intended travelling direction of the wheelchair;—where the load carrying members are spaced in a direction perpendicular to the travelling direction by at least one transverse member;—where means are provided for detachably mounting rear wheels where the transverse member intersects each of the load carrying members;—and where close to, or as a part of, the mechanism pivotally connecting the upper and lower section, means are provided for attaching front wheels, said wheel mounting being pivotable about a vertical axle;—where means are provided for slidingly attaching a seat to the upper chassis section, sa

Abstract: An adjustable chair construction is described which is particular in that the backrest is linked to the seat by means of at least one hinge construction, where said hinge construction on the seat comprises at least one first projecting member (23) having a curved or linear top section on which top section teeth are arranged, and on the back rest at least one second projecting member (82) having a curved or linear top section on which top section teeth are arranged, such that the teeth on one section mesh with the teeth on the other section, and that at least one connecting member (100) being pivotable fastened to the first and second projecting members (23, 82) maintains the teeth of the curved sections in meshed relationship.

Abstract: The present invention relates to the art of personal mobility vehicles, particularly vehicles for the physically impaired. Particular application is found in children's wheelchairs which grow and expand with the child. However, it is to be appreciated that the present invention may also be applicable to wheelchairs for adults and may be utilized to custom fit wheelchairs to adults, may enable the chair to be utilized by adults or children of different sizes, or may be applicable to other vehicles.