Patent ID: 11964365
Assignee: FINE FORGE INDUSTRY CORPORATION
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A hand tool, including:
a first member;
a second member;
a shaft, including a first end portion and a second end portion on an axis, the first end portion being connected with the first member, the second end portion being rotatably inserted to the second member, an outer circumferential wall of the second end portion including a plurality of positioning slots arranged along a circumferential direction of the shaft; and
a control member, movable between a release position and a lock position and disposed on the second member, including at least one tooth;
wherein when the control member is located in the release position, the at least one tooth is disengaged from any of the plurality of positioning slots so that the first member and the second member are rotatable relative to each other about the shaft, and when the control member is located in the lock position, the at least one tooth is engaged within at least one of the plurality of positioning slots so that the first member is non-rotatable relative to the second member;
wherein each of the plurality of positioning slots defines two side walls on the circumferential direction of the shaft, the at least one tooth defines two blocking walls on the circumferential direction of the shaft, and when the at least one tooth is engaged within at least one of the plurality of positioning slots, a portion of at least one of the two blocking walls within the positioning slot is in gapless surface contact with at least one of the two side walls;
wherein the second member includes a receiving room and a through hole which are in communication with each other, the second end portion is inserted within the through hole, the control member is slidably disposed within the receiving room, the at least one tooth is disposed on a front end portion of the control member, and the front end portion is insertable within the through hole so that the at least one tooth is engaged within at least one of the plurality of positioning slots.