howseatbeltswork安全帶工作原理(編輯修改稿)
2025-02-14 07:53 本頁面
【文章內(nèi)容簡(jiǎn)介】 ndulum to swing forward. ? The pawl on the other end of the pendulum catches the tooth ratchet gear attached to the spool. ? The gear and spool can no longer rotate counterclockwise. 1) Centrifugal clutch triggered by belt movement ? Centrifugal clutch. ? When the spool rotates quickly, centrifugal force drives the weighted end of a pivoting lever outward. ? The lever pushes a cam connected to a pawl. ? The pawl moves into the spinning ratchet gear stopping the belt. 2) Pretensioner ? Tightens up slack in the belt webbing in the event of a crash ? Pulls in on the belt ? Some pret
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