| 摘要 |
PROBLEM TO BE SOLVED: To provide a wrench which performs work readily and turns quickly while reducing a manufacturing cost.SOLUTION: The wrench includes a driving part 11, a ratchet ring 21, a transmission shaft 41, and a plate 51. The ratchet ring 21 is inserted into an axle hole 13 formed in the driving part 11. The transmission shaft 41 is inserted into the ratchet ring 21 in its axial direction. A turning knob 42 is attached to one end of the transmission shaft 41 projecting outward from the connecting end 22 side of the ratchet ring 21. A transmission part 43 is provided on the other end of the transmission shaft 41 so as to be offset from the axis of the transmission shaft 41, and is connected to the plate 51 attached to the bottom surface side of the ratchet ring 21. A push unit 43 attached to the plate 51 is moved by turning the turning knob 42, whereby the engagement state between two pawls 15 and the ratchet ring 21 is released. |
