Webbing retractor

Details Webbing retractor Webbing retractor

2008-02-06

2010-06-29

Kim, Sang (Department: 3654)

Winding, tensioning, or guiding

Reeling device

With spring motor

C242S383200

Reexamination Certificate

active

07744030

ABSTRACT:
In a webbing retractor, when a V-gear rotates in a take-up direction at an angular velocity of less than a preset upper limit angular velocity VH and a braking pawl moves toward an engaging position, an anchor claw of the braking pawl meshes with an internal tooth of a braking gear, and the braking gear is connected via the braking pawl to the V-gear so as to rotate integrally in the take-up direction. In this way, a coil portion of a torsion coil spring twists in the take-up direction (diameter contracting direction) via anchor pins. Therefore, an inner diameter of the coil portion contracts, and an inner peripheral surface of the coil portion press-contacts an outer peripheral surface of a braking shaft. End locking is prevented from arising when a spool, which rotates in the take-up direction, stops.

REFERENCES:
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patent: 4749142 (1988-06-01), Saitow
patent: 6523771 (2003-02-01), Sumiyashiki
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patent: 6883742 (2005-04-01), Sumiyashiki et al.
patent: 2008/0210802 (2008-09-01), Sumiyashiki
patent: 10-230817 (1998-09-01), None
patent: 2000-52922 (2000-02-01), None
patent: 2002-321595 (2002-11-01), None
Chinese Office Action dated May 8, 2009 from corresponding Chinese Patent Application No. 200810004820.2.

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