Ratchet mechanism

192 clutches and power-stop control – Clutches – Automatic

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Details

192 451, 81 62, 145 72, F16D 1106, B25B 1346

Patent

active

044665237

ABSTRACT:
A ratchet handle for a hand tool employs pairs of opposing pawls which are biased by a spring and selectively engage teeth at the interior of a cylindrical structure to provide for a three direction mode ratchet drive. A shifter engageable at one of three positions has ears which selectively interact with the pawls. In one embodiment three pairs of opposing pawls are biased by a garter spring. Another embodiment employs an integral serpentine spring/pawl assembly.

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