Abstract: An arrangement forms part of a shock absorber (1) and is intended to produce distinct longitudinal displacements of an element (7) in response to longitudinal displacements of a screw (15). The displacement directions of the screw and the element diverge and the displacement of the element is designed to occur against the action of a force (14) on the element. The screw is designed with a tapered or inclined surface (17) and the element, or a part related thereto, is pressed against the surface by the said force (14). Interacting sections of the surface and the element, or the part, are designed with structures that produce the said distinct longitudinal displacement positions of the element when acted upon by the member. In this way the element actuation function and that of producing the distinct positions can be incorporated into a relatively simple and compact construction.

Abstract: An arrangement forms part of a shock absorber (1) and is intended to produce distinct longitudinal displacements of an element (7) in response to longitudinal displacements of a screw (15). The displacement directions of the screw and the element diverge and the displacement of the element is designed to occur against the action of a force (14) on the element. The screw is designed with a tapered or inclined surface (17) and the element, or a part related thereto, is pressed against the surface by the said force (14) Interacting sections of the surface and the element, or the part, are designed with structures that produce the said distinct longitudinal displacement positions of the element when acted upon by the member. In this way the element actuation function and that of producing the distinct positions can be incorporated into a relatively simple and compact construction.

Abstract: A method and an arrangement for positioning accurately the piston of a load-carrying pressure-fluid piston-cylinder device, in which the fluid is a compressible gas and the cylinder device is double-acting. A variable operating pressure (P1) acts on one side of the piston, and an applied pressure (P2) of constant value acts on the other side of the piston. The pressures (P1,P2) can be relieved alternately by evacuation, for movement of the piston in the cylinder device. A pressure regulator is provided which functions to detect the load acting on the cylinder device from an external load (F) and which includes a pressure chamber having a movable wall supporting the cylinder device, and in which the operating pressure (Pi) is applied via a valve, the opening and closing movements of which are determined by movements of the movable wall.

Abstract: A method and device for adjusting pressure fluid cylinders, the fluid being a compressible gas such as air and the cylinder being double-acting and receiving a piston (2). A force transmitting means (12, 20, 24) sensing the load of a cylinder generates a signal corresponding to the size of the load which signal is led to a pressure regulating means (17) adjusting the pressure in the cylinder (1) in dependence of the signal so that this will balance a force acting on the piston rod (3). The load-carrying piston (2) is then positioned in a stationary position relative to the cylinder (1).