The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2003
Filed:
Oct. 10, 2001
Piotr Szablewski, Wuppertal, DE;
Erik Kiehl, Ratingen, DE;
Huf Hülsbeck & Fürst GmbH & Co. KG, Velbert, DE;
Abstract
A rotary latch ( ) of a door lock is retained in a detent position by a spring-mounted retainer ( ). A motor-driven working member ( ) is provided for lifting said retainer ( ). An energy-storing device ( ) subjects a storing member ( ) to a force and hereby serves to lift the retainer ( ) out of its detent position in the rotary latch ( ). To this end, the storing member ( ) has a control surface against which the working member ( ) travels in a first motor phase in order to load the energy-storing device ( ). A counter-control surface ( ) against which the working member ( ) travels when lifting the retainer ( ) in a staggered second motor phase is also provided. The aim of the invention is to provide a reliable door lock which will also function in the event of an accident. To this end, both the control surface ( ) and the counter-control surface ( ) are located on the storing member ( ). The additional force required for lifting the retainer ( ) acts on said retainer indirectly through the storing member ( ). As a result, the quantities of energy produced one after the other in the two motor drive phases can be transmitted spontaneously from the shoulder ( ) of the storing member ( ) to the counter-shoulder ( ) of the retainer ( ).