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Patent Searching and Data

Document Type and Number:
Japanese Patent JP2020171984
Kind Code:
To provide a wrench that is excellent in convenience.SOLUTION: A wrench 1 includes a fixed wrench portion 2 equipped with a fixed chuck 23, a rotation chuck 6 capable of rotating about a rotary shaft 61 disposed coaxially with a center of the fixed chuck 23, a ratchet mechanism 7 which regulates a rotating direction of the rotation chuck 6, a ratchet wrench portion 3 coupled to the fixed wrench portion 2 so as to open/close about het rotary shaft 61, and a torsion spring 4 that energizes the fixed wrench portion 2 and the ratchet wrench part 3 in opening directions each other. The ratchet mechanism 7 transmits external force to the rotary shuck 6 to rotate when external force acts in a direction closing the fixed wrench portion 2 and the ratchet wrench portion 3, and the ratchet wrench portion 3 freely rotates with respect to the rotation chuck 6 when energizing force of the torsion spring 4 acts in a direction opening the fixed wrench portion 2 and the ratchet wrench portion 3.SELECTED DRAWING: Figure 6

Application Number:
Publication Date:
October 22, 2020
Filing Date:
April 09, 2019
Export Citation:
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International Classes:
B25B13/00; B25B13/46; B25B23/142; B25B23/157
Attorney, Agent or Firm:
Takamitsu Shimizu