| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a reciprocation type monkey spanner with a simple configuration, easy in assembly work, and capable of reducing production cost and avoiding an increase in a distance between an adjustable jaw and a fixed jaw when pulling the monkey spanner in the inverse direction.SOLUTION: A reciprocation type monkey spanner comprises: a handle part 10; a head part 20 provided with a fixed jaw 21, a slide groove 22 and a storage space 23 on one end thereof; an adjustable jaw 30 having a rack 31 slidably provided in the slide groove 22 of the head part 20; a shaft 40 provided in the head part 20 and inserted into the storage space 23; a meshing part 51 for meshing with the rack 31; a shaft hole 52 for inserting the shaft 40; a worm 50 provided in the storage space 23 so as to be slidable along an axial direction of the shaft 40 and providing a first stopping part 53 on one end thereof; and stopping means 60 provided so as to enclose the shaft 40 and contacting with the first sopping part 53.</p> |
