Patent ID: 9522458
Filing Date: 2016-12-20
CPC Classification: B25B

Claim Text:
1. A clamping structure for an open end wrench comprising: a body, and the body including a handle, an operation head connecting with a front end of the handle, and a clamping portion defined thereon; wherein the clamping portion has a first jaw arranged on a first side thereof, a second jaw formed on a second side thereof, and a V-shaped retaining fringe defined on a rear end thereof; the first jaw has a first plane defined on a front end thereof, two first recesses arranged on a rear end of the first plane and a first front end of the V-shaped retaining fringe, respectively, and an arcuate projection defined between the two first recesses; the second jaw has a second plane defined on a front end thereof, an abutting face arranged between a rear end thereof and a second front end of the V-shaped retaining fringe, and an arcuately concaved section formed between the second plane and the abutting face, wherein the second plane is coplanar with the abutting face; a flexibly arcuate member is disposed on the arcuate projection of the first jaw between the two first recesses, an accommodating portion is defined between the two first recesses and has a first through orifice formed on an inner side thereof and a second through orifice vertically defined on an upper surface thereof and communicating with the first through orifice; and the flexibly arcuate member has a column extending outwardly from a rear end thereof, a notch defined in the column, and a resilient element mounted in the notch, such that the flexibly arcuate member is inserted into the first through hole by using the column, and a positioning post is inserted into a rear end of the notch of the column from the second through orifice.