Patent · US Active

Belt tightener

US11014531B2 · kind B2 · utility

0Cited by

1References

11Claims

0Family size

Assignee

TRW AUTOMOTIVE GMBH · DE

Inventors

Thomas Modinger · Alfdorf, DE
Bruno Arbter · Schwäbisch Gmünd, DE
Steffen Seiffert · Aalen, DE

Key dates

Filing date	Sep 26, 2017
Grant date	May 25, 2021
Priority date	—
Expiry date	Dec 17, 2037

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60R2022/4647
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A belt tensioner (10) for a seatbelt system comprises a tensioner tube (20) having an open outlet end and a force transmission element (22) which is guided in the tensioner tube (20) and which leaves the tensioner tube (20) via the open outlet end, a gas generator (18) providing compressed gas for displacing the force transmission element (22) within the tensioner tube (20) as well as a drive wheel (16) rotated by the force transmission element (22) leaving the tensioner tube (20). There is provided a guiding component (24) surrounding the drive wheel (16) into which guiding component the force transmission element (22) enters upon leaving the tensioner tube (20). At the guiding component (24) an energy-dissipating structure (50) is provided which the force transmission element (22) contacts when it has at least substantially completely left the tensioner tube (20).

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