Shock absorber arrangement for mounting delicate equipment and shock absorber for use in the arrangement

Claim 1

Shock absorber arrangement for mounting delicate equipment on a carrier such as a vessel or vehicle in such a manner that the equipment is normally rigidly connected to the carrier in a predetermined position relative thereto, but is permitted to yield as a result of shocks involving an acceleration beyond a certain limit, whereupon it is forced back into said predetermined position, characterized in that the arrangement comprises three separate, self-contained, identical shock absorbers which all act in both directions along a vertical axis and carry the equipment at a level different from that of the centre of gravity of the equipment, whereby horizontal shocks result in a tilting movement and thus a vertical load in opposite directions on the shock absorbers, comprising a piston-like element having an outer conical surface which by means of a biased spring is forced into self-centering engagement with a corresponding inner conical surface on a second element, characterized in that the opposite end of the spring engages an abutment element having an engagement surface which by the spring is forced towards a corresponding engagement surface on said second element, which forms a sleeve-like housing in which the spring is arranged, and is adapted to be adjustably mounted on the carrier, and that a shaft-like element which extends axially through the housing and displaceably through the piston element and the abutment element, respectively, at both ends of the housing and which is adapted to be connected to the equipment to be mounted, engages axially outwardly directed engagement surface on the piston element and the abutment element, whereby the relative axial movement between the shaft and the housing can take place in both directions by movement of either the abutment element or the piston element inwardly in the housing with concomitant compression of the spring between these elements.