Patent · US Expired

Collision damper having a damping piston and a deformable tube connected thereto

US4641872A · kind A · utility

12Cited by

11References

19Claims

0Family size

Assignee

Boge GmbH · DE

Inventors

Karl-Heinz Lohr · Eitorf, DE
Ewald Kohberg · Eitorf, DE
Werner Kuchheuser · Windeck, DE
Wolfgang Dorhmann · Eitorf, DE

Key dates

Filing date	May 22, 1985
Grant date	Feb 10, 1987
Priority date	—
Expiry date	May 22, 2005

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16F9/3207
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An impact damper which is equipped with an economical, cost-effective work piston, on which not only can a weight reduction be made, but also a substantial simplification in manufacture can be achieved. This impact damper is also designed to be deformable instantaneously upon collision with an obstacle when the force of the collision exceeds a predetermined range. The work piston is designed as a tubular body closed on a side facing a fluid containing chamber, and is provided with a breaking or buckling point, whereby energies can readily be absorbed, even at relatively high impact velocities.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.