Title:
RATCHET MECHANISM AND ROTATING TOOL FOR FASTENING/LOOSENING MEMBER HAVING RATCHET MECHANISM
Document Type and Number:
Japanese Patent JP2021179231
Kind Code:
A
Abstract:
To provide a ratchet mechanism whose minimum rotation angle at which the rotation direction control of a rotating part functions is further reduced, and a rotating tool for a fastening/loosening member having the ratchet mechanism.SOLUTION: A ratchet mechanism comprises: a rotating part 21 which can rotate around a rotating shaft C extending in a prescribed direction; a tooth part 22 having a plurality of teeth 221 which are aligned in a circumferential direction with the rotating shaft or an axis parallel with the rotating shaft as a center, and rotating around the rotating shaft or the axis in synchronization with the rotation of the rotating part; and a rotation control part 3 having a plurality of claws 31 which can be geared with the plurality of teeth, prohibiting the one-way rotation of the rotating part around the rotating shaft when the claws are geared with the teeth of the tooth part, and permitting the rotation in the other direction. Sets of the tooth part and claws of the rotation control part corresponding to the tooth part are arranged in a plurality of pieces, and rotation positions of the rotating part when the claws of the rotation control part are geared with the teeth of the tooth part in the respective sets are different from one another.SELECTED DRAWING: Figure 3
Inventors:
TAGUCHI JIRO
DOI KOJI
DOI KOJI
Application Number:
JP2020084618A
Publication Date:
November 18, 2021
Filing Date:
May 13, 2020
Export Citation:
Assignee:
VESSEL IND CO LTD
International Classes:
B25B15/04; F16D43/26
Attorney, Agent or Firm:
Fujimoto Partners Corporation