Seat belt retractor and seat belt apparatus employing the same

Abstract

The invention provides a safety belt retractor and a safety belt device using the safety belt retractor, which can effectually prevent end-locking caused by engaging claws of a vehicle sensor, and can form a structure preventing the end-locking with a smaller and compacter configuration. When pulling out the safety belt, an eccentric gear (14) of ELR-ALR switching mechanism (25) decelerates in a retracting direction of the safety belt and rotates eccentrically. At this moment, a third rod operating cam (18) provided on the eccentric gear (14) integrally rotates along with the eccentric gear (14). As an end-locking preventing arm (43) of an end-locking preventing rod (38) is located an end-locking preventing release location represented by real lines, the third rod operating cam (18) abutsagainst and presses a locking release rod (41) while completely or approximately completely retracting the safety belt (4) so that the end-locking preventing rod (38) rotates to set the end-locking preventing arm (43) on the end-locking preventing location represented by double dot dash lines. Therefore, the end-locking caused by the vehicle sensor (27) can be prevented.

Description

technical field [0001] The present invention relates to a seat belt retractor in a seat belt device mounted on a vehicle such as an automobile for constraining an occupant by a seat belt pulled out from the seat belt retractor, and to using the seat belt retractor and utilizing the seat belt retractor. The technical field of the seat belt device that restrains the occupant by the seat belt pulled out by the retractor, wherein the above seat belt retractor may cause end lock caused by vehicle sensor or end lock caused by vehicle sensor and webbing sensor, and at least has an emergency Locking function and automatic locking mechanism. Background technique [0002] In the conventional seat belt devices installed on the seats of vehicles such as automobiles, when a large deceleration acts on the vehicle in an emergency such as a collision, the seat belt restrains the occupant to prevent the occupant from being ejected from the seat. [0003] Usually, such seat belt arrangements...

AI Technical Summary

Problems solved by technology

When the seat belt retractor disclosed in this patent document 2 is used to cope with various designs of seat belt devices, since the stopper member and the cam plate are integrally formed of the same member, the stopper member and the cam plate are formed of the same member. Dedicated parts require the same number of types as design types, which not only increases the number of types of parts, but also increases the cost

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