Wrench structure
OwnerTerence Cheninventor
Life of this patent
Estimating the term…
Abstract
A wrench structure includes a drive head formed with a receiving chamber and having an end face formed with a direction control recess. The end face of the drive head is formed with a spacing portion. Thus, the spacing portion is continuously extended through the end face of the drive head and is not broken, so that the end face of the drive head is continuously extended through the drive head and is not broken, thereby preventing the stress from being concentrated on the portion between the receiving chamber and the direction control recess of the drive head, such that the structural strength of the drive head can be enhanced.
Claims2
1-14. (canceled)
A wrench structure comprising:
- a wrench handle having a drive head formed with a receiving chamber;
- the drive head having an end face formed with a direction control recess located adjacent to the receiving chamber;
- the end face of the drive head being formed with a continuously arranged spacing portion located between the receiving chamber and the direction control recess, the drive head being formed with an arcuate guide slot located between the receiving chamber and the direction control recess;
- two directional blocks each pivotally mounted in the arcuate guide slot of the drive head, each of the two directional blocks having a top face provided with a stub-shaped guide portion extended into the direction control recess of the drive head,
- a direction control member including a disk-shaped body rotatably mounted in the direction control recess of the drive head, wherein the body of the direction control member is formed with two guide tracks each rested on the guide portion of a respective one of the two directional blocks;
- the body of the direction control member having an outer wall formed with an annular groove, the direction control recess having a wall formed with an annular groove, and the direction control member further including a retaining member secured in the annular groove of the body and the annular groove of the direction control recess, thereby retaining the direction control member on the drive head.
Dependencies are inferred from the claim text.