Patent ID: 11897092
Assignee: KABO TOOL COMPANY
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A ratchet wrench comprising:
a main body having a head portion and a shaft, the head portion being provided at a front end of the shaft, the head portion having an accommodating space therein, a peripheral wall being formed at a rear end of the accommodating space, and the accommodating space being formed with at least one opening located at a top surface or a bottom surface of the head portion;
a front end of the opening of the accommodating space is provided with a slot;
a ratchet mechanism provided in the accommodating space and having a drive portion, wherein the ratchet mechanism includes a ratchet, a ratchet tooth and a reversing button;
a cover plate having a cover portion and a snap-abut portion, a thickness of the snap-abut portion being larger than a thickness of the cover portion, the cover plate being placed in the opening of the accommodating space, the cover portion being provided with a through hole corresponding to the drive portion of the ratchet mechanism, and the snap-abut portion being located in the peripheral wall of the accommodating space; and
an elastic fastener member having a c-shaped ring body, the outer diameter of the ring body can be elastically reduced or expanded, the ring body having two terminals, an open end of the fastener member being formed between the two terminals, and an end of the ring body opposite to the open end being a closed end; the fastener member being installed in the accommodating space, disposed between the head portion and the cover plate, the terminals being inserted into the slot and elastically snapped against a peripheral surface of the slot, and the closed end of the fastener member contacting a front end of the snap-abut portion of the cover plate, the fastener member applying an elastic force to push the cover plate to move toward a rear side of the accommodating space, the snap-abut portion of the cover plate elastically snapping against the peripheral wall of the accommodating space;
wherein the cover plate is provided with a positioning hole at a surface of the snap-abut portion in contact with the accommodating space, a positioning stud is disposed at an end of the reversing button, and the positioning stud is inserted in the positioning hole;
an arcuate connecting surface is formed at the front end of the snap-abut portion of the cover plate, wherein the snap-abut portion is provided with a flange protruding from a bottom end of the arcuate connecting surface forming a groove between the flange and the cover portion; and
wherein the cover plate is inserted through the opening at a bottom of the accommodating space.