Ratchet structure for screwdriver
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United States of America Patent
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Aug 14, 2018
Grant Date -
Apr 13, 2017
app pub date -
Aug 20, 2016
filing date -
Oct 8, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A ratchet structure for a screwdriver, comprising a ratchet body and a toothed shaft having a segment of a toothed outer surface, wherein a ratchet speed multiplier mechanism which is fitted with the ratchet body and allows the toothed shaft to have a multiplied speed is also sleeved outside the toothed shaft. The ratchet structure has a reasonable structure and the screwdriver exhibits good braking effect, so that the toothed shaft can be rotated at a 5× speed. In this way, the speed for screwing a screw is greatly increased and it is more manpower-saving.
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