Torque wrench

Details Torque wrench Torque wrench

B - Operations, Transporting

25

B

81/23

B25B 23/142 (2006.01)

Patent

CA 1167291

Abstract A torque wrench having a main body of fixed overall length and having a torque adjusting mechanism enclosed within the main body. The adjusting mechanism is controlled by a rotatable handle disposed about the main body. The adjusting mechanism includes a first part which is connected with the handle for joint rotation therewith, but which is constrained against axial movement. The adjusting mechanism further includes a second part having a polygonal portion extending into a polygonal recess in the first part to couple the first and second parts for joint rotation while permitting linear movement of the second part. The second part is designed to move linearly in response to joint rotation of the first and second parts in order to effect adjustment of the torque setting of the wrench. The handle contains a locking mechanism to prevent movement of the adjusting mechanism during operation of the torque wrench, The torque wrench is designed to provide for precise adjustment of the torque setting, and yet maintain a fixed wrench length, regardless of whether its torque is set, or is being adjusted.

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