Patent · US Expired

Vehicle crash detector

US4161228A · kind A · utility

18Cited by

5References

13Claims

0Family size

Assignee

Forenade Fabriksverken

Inventors

Lars Svensson · Partille, SE
Gustav S. E. Karlstedt · Sollentuna, SE
Claes Tisell
Yngve Thorstensson · Sollentuna, SE

Key dates

Filing date	Dec 28, 1977
Grant date	Jul 17, 1979
Priority date	—
Expiry date	Dec 28, 1997

Classification

Technology area (CPC H)Electricity
CPC primaryH01H35/14
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A crash detector is provided for controlling actuation of an actuator such as a release mechanism for seat belts, an air bag or the like. A main body such as a ball is located in a bore in a housing and retained by a first, relatively weak spring. A firing pin having a portion for actuating the actuator is axially movable in the housing bore. A second spring biases the firing pin towards an inoperative position. The firing pin is moved to an actuating position when the deceleration force acting on the vehicle, and hence the mass body, exceeds a predetermined magnitude.

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