Patent · US Expired

Door lock device for motor vehicles

US6422617B1 · kind B1 · utility

123Cited by
6References
7Claims
0Family size

Assignees

Inventors

Key dates

Filing dateAug 3, 2000
Grant dateJul 23, 2002
Priority date
Expiry dateAug 3, 2020

Classification

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

Abstract

In a door closer device which requires at least three switches consisting of a half door detection switch, a full lock (completely closing) detection switch and a switch for detecting the return to the initial position, the number of switches can be reduced. Two cam switch operating portions are formed on a cam plate fixedly secured to an output shaft of a motor. The motor is stopped by making use of one operating portion and the motor is rotated in a reverse direction by making use of the other operating portion.

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