Abstract: An apparatus comprising a wall frame and an application frame. The application frame is movable with respect to the wall frame. The apparatus includes a first spring system and a second spring system, which two spring systems are each coupled with the wall frame and the application frame to apply forces on the application frame. The first spring system has its opposite ends connected to the wall frame and the application frame respectively. The second spring system is at a first end connected to the wall frame and the second spring system is at a second end distant from the first end connected to an adjusting device which is coupled with the application frame. The adjusting device is arranged to vary an extension of the second spring system when the application frame moves with respect to the wall frame. The adjusting device includes a single trajectory profile element, and only a first arm and a second arm that are connected to each other at a first hinge.

Abstract: A sliding guide, for instance for an arm support (A), comprising at least a first and an at least second profile, with bearing and friction elements included therebetween for providing a particular frictional resistance between the profiles, wherein the profiles are provided with fastening elements, wherein the first and second profiles on both sides in the longitudinal direction are provided with respective connecting longitudinal edges, which cooperate in order to allow sliding of the second profile relative to the first profile, wherein the bearing and the friction elements are provided between the profiles near the respective connecting longitudinal edges thereof in order to provide an internal space (I) between the at least first and the at least second profile. The invention further relates to an arm support (A) provided with such a sliding guide.

Abstract: A sliding guide, for instance for an arm support (A), comprising at least a first (2) and an at least second profile (3), with bearing means (4) and friction means (5) included there between for providing a particular frictional resistance between the profiles (2,3), wherein the profiles (2, 3) are provided with fastening means (6, 7), wherein the first and second profiles (2, 3) on both sides in the longitudinal direction are provided with respective connecting longitudinal edges (8, 9; 10, 11), which cooperate in order to allow sliding of the second profile (3) relative to the first profile, wherein the bearing means (4) and the friction means (5) are provided between the profiles (2, 3) near the respective connecting longitudinal edges (8, 9; 10, 11) thereof in order to provide an internal space (I) between the at least first (2) and the at least second profile (3). The invention further relates to an arm support (A) provided with such a sliding guide (1).