Damping device for shock loading

Claim 1

In an energy-absorbing damping device for shock loading, the device including a basic body of elastically deformable and elastically compressible material, the basic body defining a chamber filled with liquid, the basic member further defining valve-free narrow flow restriction channels in communication with the chamber, the basic body having an outer side, the flow restriction channels having an external outlet each at the outer side of the basic body, the external outlets being covered by an elastically extensible diaphragm which yields elastically when subjected to liquid pressure, the diaphragm being circumferentially sealingly mounted on the outer side of the basic body and being mounted partially loosely from the basic body, the basic body forming a torus with an apex surrounding the chamber, the chamber having the shape of a trough-like cavity, a covering formation extending across the cavity, the basic body having a support face and a load application face which are located opposite each other and extend essentially in the direction of the flow restriction channels, the improvement comprising the flow restriction channels extending radially, one of the support face and the load application face being at the apex of the torus of the basic body, the covering formation being formed by the diaphragm and being mounted on the apex of the torus, the basic body defining the trough-like cavity, the other of the support face and the load application face being plane, wherein the diaphragm is loosely mounted up to the apex of the torus, wherein the flow restriction channels are provided at one of the load application and support face of the basic body forming the cavity so as to be open on one side and are covered by the covering formation, and wherein the flow restriction channels are bounded on the side by ridges (16) formed by the basic body.