ADJUSTABLE WRENCH
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United States of America Patent
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Issued Date -
Jul 18, 2013
app pub date -
Jan 23, 2012
filing date -
Jan 17, 2012
priority date (Note) -
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Abstract
The invention discloses an adjustable wrench, including a wrench body and a worm; the wrench body includes a handle and a working part; the working part includes a fixed member, a movable member and a track; the lower portion of the movable member, whose bottom edge is arranged with a tooth part, is arranged in the track; the working part also includes a through hole in which the worm is arranged for meshing with the tooth part; when the worm is rotated, the worm interacts with the tooth part and drives the movable member to move in the directions towards or away from the fixed member; wherein the worm has at least two starts of threads. The adjustable wrench of this invention enables swift adjustments to the spacing between the movable member and the fixed member and increases the bearable torque of the worm.
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