192 clutches and power-stop control – Clutches – Automatic
Patent
1997-12-09
2000-04-11
Smith, James G.
192 clutches and power-stop control
Clutches
Automatic
192 46, 192 47, 81 631, F16D 1106
Patent
active
060478012
ABSTRACT:
An improved ratchet screwdrivers utilizes a curved spring to encircle two engaging gear blocks at the ratchet gear portion of the transmission shaft, and then a rotating coupling is used to shift the position of the slide in order to designate the operating direction of the transmission shaft. It indicates that when a certain side of the engaging gear block needs to be activated for locking purpose, it needs to disengage the engaging gear block from the ratchet gear part so that its engaging function is disabled. As a result, because one side of the coiled spring is compressed by the external force, the other will be further compressed to the engaging gear block that has not shifted due to its retaining force, thus a more powerful driving force is generated.
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Smith James G.
Thomas David B.
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