An arm rest assembly is usable with a mouse pad or keyboard and provides vertical support for a user's arm to avoid fatigue and injury. The assembly has at least one forearm cradle and a thin profile which allows a mouse or digitizer pad to be placed on an assembly platen or to insert the assembly under a keyboard and support both forearms of the using while striking the keys of the keyboard with both hands. The assembly further includes a detachable slide which is pivotable and, at the same time, allows linear movement of the arm toward and away from the assembly. An interchangeable cradle for the user's forearm has springs to counteract the arm weight and to make the cradle stable in the horizontal position while permitting some tilting.

A swivel arm featuring a cantilever capable of swiveling about a vertical pillar. Said pillar can be fixed at a desk by means of a locating plate and a clamping arm. A board with straight guides holding a carrying frame, the latter being designed as a cage and being vertically movable, is mounted at the free end of the cantilever and can be pivoted about a vertical pin. Said carrying frame serves to accommodate the appliance to be held by the swivel arm. The cantilever consists of a rectangular hollow section and of a supporting plate capable of being extended from it in a telescope-type manner. Guiding of the supporting plate in the rectangular hollow section is effected via upper rails, extension rails and further upper rails, similarly to a drawer.

An adjustable, compact and foldable rest for supporting both arms primarily upon a seated person's knees.

The invention is an apparatus for supporting the hand which includes a mounting element detachably attachable to a base. The shaft element is rotatably mounted to the mounting element by a pivot part and a hand support is rotatably attached to the shaft element. The shaft element includes two generally parallel regulation arms spaced distance from each other which are attached at one end to the pivot part and at the other end to a support side pivot part. The hand support is adjustable in height by moving the regulation arms in relation to the mounting element.

An armrest device for an office chair comprises a fastening element (6) intended to be fixed to the chair beside the seat (4). The-device further includes an armrest (7, 8, 9, 20) which is connected to the fastening element (6) and has a vertical column (7) so connected to the fastening element as to be rotatable about its longitudinal axis, a horizontal rear supporting bar (8) connected to the column, and a front supporting bar (9) carrying a forearm rest (20), on which the user's forearm is to rest, and being telescopically displaceable in relation to the rear supporting bar (8) in order to form an armrest that can be lengthened and shortened as desired. The rear supporting bar (8) is so mounted on the column (7) as to be pivotable about a horizontal transverse axis (10). A spring means (15, 16, 17, 18, 19) is arranged to maintain the rear supporting bar (8) in an initial position and to counteract, with an adjustable spring pressure, pivotal movement of the rear supporting bar (8) about the horizontal transverse axis (10) caused by a depression of The forearm rest (20).