SEAT BELT DEVICE

WIPO Patent Application WO/2019/039389

A1

According to the present invention, a seat belt retractor (11) includes a rotation transmission mechanism (76) that transmits the rotation of an adjust gear (74) to a sensor housing (32) to swing the sensor housing (32) in the front-rear direction of a vehicle. The center of gravity (G) of a sensor-assembled body (39) when the sensor-assembled body (39), in which an inertial body (35) is placed on an inertial body supporting surface (33), is in a neutral position is at a position spaced apart from a vertical line (V1) passing through a shaft center (O) of a swing shaft (L1) of the sensor housing (32). Accordingly, the rotation by an angle determined according to the inclination angle of a seat back (16) is transmitted from the adjust gear (74) to the sensor housing (32) by means of the rotation transmission mechanism (76), the sensor-assembled body (39) is constantly rotated in a single direction by the center of gravity (G) to absorb rattling between components of the rotation transmission mechanism (76), and the inclination angle of the seat back (16) and the rotation angle of the sensor housing (32) are synchronized with high accuracy to improve the accuracy of an acceleration sensor (30).

WO/2010/102744	SEAT BELT RETRACTOR
JPH072455	[Title of Invention] Vehicle Seatbelt Retractor
WO/2022/148863	VEHICLE-SENSITIVE SENSOR FOR A SELF-LOCKING BELT RETRACTOR

ITO KATSUHIRO (JP)
HIBATA GANTA (JP)

PCT/JP2018/030470

February 28, 2019

August 17, 2018

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AUTOLIV DEV (SE)
ITO KATSUHIRO (JP)
HIBATA GANTA (JP)

B60R22/40; B60R22/26

WO2013073568A1

2013-05-23

JP2009090806A	2009-04-30
JPS55175136U	1980-12-16
JP2001169629A	2001-06-26
JPH11352142A	1999-12-24

EIKOH PATENT FIRM, P.C. (JP)

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