发明授权
US5192035A Retractor with manual cinch 失效
牵引器与手动系带

Retractor with manual cinch
摘要:
A vehicle seat belt retractor has a manual cinch mechanism. The retractor includes a spool on which belt webbing is wound. It also includes a metal pawl which is movable into a locking position in engagement with a spool locking ratchet wheel to block the spool against rotation in the belt withdrawal direction. A pawl actuator is movable between a first position and a second position to move the pawl into its locking position. A manually movable member such as a push button can move the pawl actuator into its second position and thereby move the metal pawl into its locking position. When the pawl actuator has been moved into its second position by the manually movable member, an overcenter spring acts to keep the pawl actuator in its second position, holding the metal pawl in its locking position. The overcenter spring can act on the pawl only through the pawl actuator. Thus, the overcenter spring can hold the pawl in its locking position only when the pawl actuator is intentionally moved into its second position by the manually movable member.
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