Power-assist motor-vehicle door latch

US5423582A · kind A · utility

Assignee

• Kiekert GmbH & Co. KG · DE

Inventor

• Frank Kleefeldt · Heiligenhaus, DE

Key dates

• Filing date: Feb 8, 1994
• Grant date: Jun 13, 1995
• Expiry date: Feb 8, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T292/1082
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A motor-vehicle door latch for use in combination with a door bolt has a housing formed with a laterally open recess in which the bolt is receivable and a pivotal latch fork formed with a fork seat and with at least one detent and pivotal on the housing between locked, semilocked, and unlocked positions. A support link pivotal on the housing carries a latch pawl pivotal in the locked and semilocked positions of the fork into and out of a holding position engaging the detent and preventing pivoting of the fork into the unlocked position. A crank is rotatable adjacent the fork between an outer position relatively far from the fork and an inner position relatively close to the fork and through an open-ready intermediate position between the inner and outer positions and close to the outer position. This crank is connected by a link to the support link for pivoting the support link and retaining pawl as the crank rotates. A stop on the housing engages a tooth of the pawl in the intermediate and outer positions of the crank, is out of engagement with the tooth in the inner position, and is positioned such that on displacement of the crank from the open-ready intermediate to the outer po…