Patent · US Expired

Device for unlocking doors

US5992194A · kind A · utility

69Cited by

9References

5Claims

0Family size

Assignee

VDO Adolf Schindling AG · DE

Inventors

Theo Baukholt · Kriftel, DE
Klaus Rathmann · Frankfurt am Main, DE
Jens Lubben · Schwalbach, DE

Key dates

Filing date	Nov 5, 1996
Grant date	Nov 30, 1999
Priority date	—
Expiry date	Nov 5, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T292/1082
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A lock including a device for unlocking the door of a motor vehicle in case of a malfunction of the lock, as in the event of an accident of the motor vehicle, to open the lock or allow the lock to be reliably opened manually. The unlocking is triggered by a setting device which can be operated during a malfunction independently of a supply of electric current for unlocking the door. Also included in the lock is a rotary latch for engaging a closure wedge upon a locking of the door, and a pawl which holds the latch in a locked position during normal locking of the door, but releasing the latch upon operation of the setting device in the event of a sensed malfunction.

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