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:
Jan. 26, 2021
Filed:
Mar. 21, 2017
Trw Automotive Technologies (Shanghai) Co., Ltd., Shanghai, CN;
Yong Han, Shanghai, CN;
TRW AUTOMOTIVE TECHNOLOGIES (SHANGHAI) CO. LTD, Shanghai, CN;
Abstract
A safety belt retractor, a vehicle safety belt with the safety belt retractor and a vehicle with the vehicle safety belt are provided. The safety belt retractor is provided, on an end segment thereof, with a pre-tensioning, force-limiting and decoupling device that comprises a safety belt reel (), a driving element (), a sleeve () and an energy absorbing disc (). The safety belt reel () is provided with a first recess () and a second recess. A first helical surface () is arranged in the first recess (), and the driving element () is provided with a first projection () having a second helical surface acting together with the first helical surface (). The sleeve () is provided with a second projection () mounted in the second recess. Under a predetermined load, the second projection () is cut off, such that the energy absorbing disc () is plastically deformed due to squeezing. The safety belt retractor achieves on the same end segment, the pre-tensioning, force-limiting and decoupling functions as well as a compact structure.