| 摘要 |
PROBLEM TO BE SOLVED: To provide a torque wrench in which a position specifying marker is hardly damaged.SOLUTION: The upper surface 4a of a transmitter 4 is opposed to a camera 9 for confirming the position of a torque wrench, and bolt insertion holes 10 for fixing the transmitter 4 to a body 1 are opened on the upper surface 4a. The bolt insertion holes 10 are formed at four points in total at positions that form rectangular corners, when viewed from the direction of the camera 9. Each of the bolt insertion holes 10 penetrates in the thickness direction of the transmitter 4 and the upper end part is formed as a large diameter part 10a into which the head part of a bolt fits. A marker 12 is attached to the upper surface of the head part 11a of the bolt 11 inserted into the bolt insertion hole 10. The depth of the large diameter part 10a is made larger than the total value of the thickness of the head part 11a of the bolt and that of the marker 12 in a state where the transmitter 4 is fixed to the body 1 by using the bolts 11. As a result, the marker 12 is located at the position lower than that of the openings of the bolt insertion holes 10, thus reducing the possibility that the marker 12 strikes other members and is damaged or comes off when the torque wrench is used. |
