Kupplung für einen Sitzgurtstraffer und Verfahren zur Übertragung einer Kupplung aus einer Eingerasteten Position in eine Ausgerastete Position

Details

Veröffentlichungs-Nr.

EP3275740

Aktenzeichen

EP16181199

Anmeldetag

26. Juli 2016

Veröffentlichung

10. Juli 2019

Erteilung

10. Juli 2019

Rechtsraum

EP

IPC

B60R22/46F16D43/202

Abstract

A clutch (10) for a seat-belt tensioner in a vehicle has a driving element (14) adapted for being rotated in a driving direction (D) and in a releasing direction (R) and a driven element (18) connectable with a seat-belt spool, the driving element (14) and the driven element (18) having a common rotation axis (A). A pawl (22) is pivotally held at a pivot pin (24) arranged on the driving element (14) and forming a pivot axis, the pawl (22) having a bearing lug (56) with a non-circular inner circumference, the bearing lug (56) being positioned around the pivot pin (24) so that the pawl (22) can be shifted for a limited distance with respect to the pivot pin (24). The clutch (10) is transferred from the engaged position into the decoupled position in that a pyrotechnic drive coupled with the driven element (18) is activated, an impulse acting in a radially outwards direction is introduced into the pawl (22) by the driven element (18), the bearing lug (56) of the pawl (22) is shifted in radially outwards direction, while the pawl (22) stays in engagement with the driven element (18), and the pawl (22) is pivoted outwards into the decoupled position when the driven element (18) is rotated in driving direction (D) by the pyrotechnic drive.

Anmelder

Firmen

ZF Automotive Germany GmbH
TRW Automotive GmbH

Land

🇩🇪 Deutschland

Fachgebiete