| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an open end wrench improving the smoothness of operation.SOLUTION: An open end wrench is equipped with a drive head 110 and a handle 120. The drive head 110 is connected to one end of the handle 120, and has a first jaw portion 111, a second jaw portion 112, a first inclined surface 113, and a second inclined surface 114. The first jaw portion 111 and the second jaw portion 112 are respectively installed on both sides of a front end of the drive head 110, and an opening 115 for driving a driven member is provided between the first jaw portion 111 and the second jaw portion 112. The first inclined surface 113 is formed on one side surface of the drive head 110, and inclined from a center of the drive head 110 toward one edge portion S1 of the drive head 110. The second inclined surface 114 is formed on one surface of the drive head 110, and contacted with the first inclined surface 113. The second inclined surface 114 is inclined from the center of the drive head 110 toward the other edge portion S2 of the drive head 110. The first inclined surface 113 and the second inclined surface 114 have different inclined directions.</p> |
