WEBBING WINDING DEVICE

To suppress influence of noise on a lock mechanism which uses acceleration for control and is electrically operated.SOLUTION: A webbing winding device 10 includes: a spool 20 on which a webbing can be wound; a lock pawl 26 which restricts rotation of the spool 20 in a drawing direction by being oper...

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Bibliographic Details
Main Authors SAITO TAKUHIRO, YAMADA KAZUHIRO, OWAKI TOMOYA
Format Patent
LanguageEnglish
Japanese
Published 04.06.2020
Subjects
PERFORMING OPERATIONS
TRANSPORTING
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Summary:To suppress influence of noise on a lock mechanism which uses acceleration for control and is electrically operated.SOLUTION: A webbing winding device 10 includes: a spool 20 on which a webbing can be wound; a lock pawl 26 which restricts rotation of the spool 20 in a drawing direction by being operated; and an operation mechanism which operates the lock pawl 26 with driving of an electromagnetic actuator 60. A control device 100 calculates a jerk of acceleration by acquiring the acceleration of the webbing 22, and drives the electromagnetic actuator 60 so that the lock pawl 26 operates when the acceleration exceeds an acceleration threshold and the jerk exceeds a jerk threshold.SELECTED DRAWING: Figure 1 【課題】加速度を制御に用いると共に電気式に作動されるロック機構においてノイズの影響を抑制する。【解決手段】ウェビング巻取装置１０は、ウェビングが巻取り可能とされるスプール２０と、作動されることでスプール２０の引出方向への回転を規制するロックパウル２６と、電磁アクチュエータ６０の駆動に伴ってロックパウル２６を作動させる作動機構と、を備えている。そして、制御装置１００はウェビング２２の加速度を取得して当該加速度の躍度を算出すると共に、当該加速度が加速度閾値を超えかつ当該躍度が躍度閾値を超えた場合にロックパウル２６が作動するように電磁アクチュエータ６０を駆動させる。【選択図】図１
Bibliography:Application Number: JP20180224240