公开(公告)号：US10053051B2

公开(公告)日：2018-08-21

申请号：US15116841

申请日：2015-02-05

Applicant: Autoliv Development AB

Inventor： Günter Clute ,  Hiroki Matsuoka

IPC: B60R22/405

CPC classification number: B60R22/405 ,  B60R22/3413 ,  B60R2022/285

Abstract: A seat belt retractor includes a belt shaft pivot-mounted in a retractor frame, wherein the belt shaft shows an at least two-part design with a first and a second part. A load limiting device includes at least two parts, which can be moved relative to each other and have teeth, with which they alternately engage and disengage. Each of the parts of the load limiting device is allocated to a different part of the belt shaft. A tensioning device is located on the second part of the belt shaft and, upon activation, abruptly drives the belt shaft in the winding direction. One of the parts of the load limiting device, via a transmission device, is connected in a rotationally-fixed manner to the second part of the belt shaft through the first part, which is a hollow shaft.

公开(公告)号：US20170182973A1

公开(公告)日：2017-06-29

申请号：US15116841

申请日：2015-02-05

Applicant: Autoliv Development AB

Inventor： Günter Clute ,  Hiroki Matsuoka

IPC: B60R22/405

CPC classification number: B60R22/405 ,  B60R22/3413 ,  B60R2022/285

Abstract: A seat belt retractor includes a belt shaft pivot-mounted in a retractor frame, wherein the belt shaft shows an at least two-part design with a first and a second part. A load limiting device includes at least two parts, which can be moved relative to each other and have teeth, with which they alternately engage and disengage. Each of the parts of the load limiting device is allocated to a different part of the belt shaft. A tensioning device is located on the second part of the belt shaft and, upon activation, abruptly drives the belt shaft in the winding direction. One of the parts of the load limiting device, via a transmission device, is connected in a rotationally-fixed manner to the second part of the belt shaft through the first part, which is a hollow shaft.