| 摘要 |
A spring device of a torque wrench includes a mediate member slidably received in a tube of the wrench and located between a block and an actuating member, wherein the block is movably connected to a positioning bolt extending from the tube and the actuating member contacts a shank in the tube. The other end of the shank has a head portion formed thereon. The actuating member has a rod extending therefrom and extending through a hole defined in the mediate member. A first spring is mounted to the rod between the mediate member and the actuating member, a second spring mounted to the rod between the mediate member and the block. The first and the second spring are maintained straight when being depressed.
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