Abstract: 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.

Abstract: Connection joint between a first member and a second member where said connection joint comprises: a. a first slidable base member, where said slidable base member in a first end has a first conically shaped cavity, and in a second end has a portion extending from the distal end towards the first end, where a plurality of slits are provided in said portion, where said first slidable base member between the first conically shaped cavity and said second end has a cylindrical cross-section orthogonal to a longitudinal direction of said first slidable base member, and where b. a washer having at least one conical section providing expansion means arranged at least partly inside said first slidable member in the vicinity of the slits adjacent the second end, where said conical section is able to urge the first slidable member's portion provided with slits outwards and expand beyond the circumference of the cylindrical section; c.

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: An adjustable body support, including a number of mutually displaceable members, where a first plate-shaped basic member includes means for releasable fastening on a piece of furniture, a second plate-shaped basic member includes means for releasable fastening to the first basic member at varying positions, and a number of support members that may be releasably fastened to the second basic member.

Abstract: An adjustable body support, including a number of mutually displaceable members, where a first plate-shaped basic member includes means for releasable fastening on a piece of furniture, a second plate-shaped basic member includes means for releasable fastening to the first basic member at varying positions, and a number of support members that may be releasably fastened to the second basic member.