Patent ID: 8186247
Filing Date: 2012-05-29
Classification: B25B

Abstract:
1. A wrench, comprising: a body, includes a handle having an appropriate shape, a containing groove disposed at an action end of the body, and a second containing groove and a third containing groove for containing and installing internal components of the wrench to achieve a turning effect, a latch slot is disposed at the top of the containing groove and proximate to the wall of the containing groove; a ratchet is rotatably received into the containing groove of the body, and the ratchet includes a ratchet portion disposed at an external peripheral surface of the ratchet, and the ratchet portion includes circularly arranged teeth, and a distal edge of the ratchet portion acts as a top portion, ratchet portion having a shaft portion for sheathing a screw element for its rotation, the shaft portion of the ratchet being alternated to a protruded tetrahedral member provided for sheathing and rotating a bushing; a seal cover is covered onto the body and matched with the shape of the containing groove and the second containing groove of the body, and the seal cover is situated at the top portion of the ratchet portion, the seal cover has a through hole corresponding to body, a groove is continuously disposed around the entire external peripheral surface of the seal cover, such that the groove is in a circular shape and has an open shape on a lateral side, in other words, the cross-section of the seal cover is substantially step-shaped, the seal cover has a rear cover portion disposed at a position corresponding to the second containing groove of the body, and the groove at the rear cover portion of the seal cover is the rear cover groove; a latch ring is latched to the latch slot of the body and the groove, such that the ratchet is rotatably received into the containing groove of the body, and the seal cover is sealed onto the body.