公开(公告)号：US09446737B2

公开(公告)日：2016-09-20

申请号：US14243209

申请日：2014-04-02

Applicant: Autoliv Development AB

Inventor： Eiji Maemura ,  Yukinori Midorikawa ,  Masuo Matsuki

IPC: B60R22/38 ,  B60R22/34 ,  B60R22/46

CPC classification number: B60R22/3416 ,  B60R22/46 ,  B60R22/4628 ,  B60R2022/4642 ,  B60R2022/4666 ,  B60R2022/468

Abstract: A seat belt device includes a spindle (11) for retracting a seat belt (13), an electric actuator (55), a pre-tensioner (14) and a power transmission mechanism (20), wherein the power transmission mechanism (20) can reversibly switch the connection and disconnection between the electric actuator (55) and the spindle (11) before the pre-tensioner (14) is activated, while when the pre-tensioner (14) is activated. The power transmission mechanism (20) non-reversibly interrupts the connection between the electric actuator (55) and the spindle (11) via an elastic piece (60) when a torque difference between an actuator-side gear (80) and a spindle-side gear (82) becomes larger than a predetermined value.

Abstract translation: 一种座椅安全带装置，包括用于缩回安全带（13）的主轴（11），电致动器（55），预张紧器（14）和动力传递机构（20），其中动力传递机构（20） 在预张紧器（14）被激活之前，可以可逆地切换在电动致动器（55）和主轴（11）之间的连接和断开。 当致动器侧齿轮（80）和主轴齿轮（80）之间的扭矩差异时，动力传递机构（20）经由弹性片（60）不可逆地中断电致动器（55）和主轴（11） 侧齿轮（82）变得大于预定值。