US 10,471,929 B2Granted

Webbing take-up device

AssigneeKabushiki Kaisha Tokai Rika Denki Seisakusho

InventorsTomonari Umakoshi, Takuhiro Saito, Yuya Nagata, Takahiro Osaki

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Abstract

A webbing take-up device includes a spool on which a webbing worn by an occupant is taken up, and a motor that includes a rotation shaft and a first boss portion disposed coaxially with the rotation shaft. The webbing take-up device further includes an A-gear that is fixed to the rotation shaft, and a B-gear that meshes together with the A-gear and that is rotated by the A-gear being rotated such that the spool is rotated. The webbing take-up device further includes a gear housing that includes a B-gear support portion on which the B-gear is supported, and an engaged hole engaged by the first boss portion so as to have tightening margin therebetween, and to which the motor is fixed in a state in which the first boss portion has engaged with the engaged hole.

Claims3

Dependent claims

A webbing take-up device comprising:

a spool on which a webbing worn by an occupant is taken up;
a motor that includes a rotation shaft and an engaging portion disposed coaxially with the rotation shaft;
a first gear that is fixed to the rotation shaft;
a second gear that meshes with the first gear and that is rotated due to the first gear being rotated such that the spool is rotated;
and
a housing that includes a second gear support portion on which the second gear is supported, and
an engaged portion that is engaged with the engaging portion such that a tightening margin exists between the engaged portion and the engaging portion, the motor being fixed to the housing in a state in which the engaging portion is engaged with the engaged portion,
wherein the engaged portion is an engaged hole, a projection being provided at an inner peripheral portion of the engaged hole;
and the projection is deformed in a state in which the engaging portion is disposed inside the engaged hole.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/641,790Filed 5 Jul 2017
Priority: JP 2016-1352407 Jul 2016
Published: US 2018/0009410 A111 Jan 2018
Granted: 12 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

B60R 22/34
Safety belts or body harnesses in vehicles: belt retractors, e.g. reels
B60R 22/40
Self-locking in an emergency: responsive only to vehicle movement
B60R 22/46
Belt retractors, e.g. reels: reels with means to tension the belt in an emergency by forced winding up
B60R 2022/3402
Belt retractors, e.g. reels: retractor casings; Mounting thereof