Spanner
OwnerWen-Hsien Cheninventor
Life of this patent
Estimating the term…
Abstract
A spanner has a handle bar, a box head disposed on the handle bar, a ratchet ring, a C-shaped retainer, a spring, and a serrated block. The box head has an arc-shaped guide wall, an inner aperture, and an inner groove. The ratchet ring has a plurality of ratchet teeth. The serrated block has a plurality of ratchet serrations, an arc-shaped blocking face, and a blind hole. The serrated block is inserted in the inner groove of the box head. The spring has a first end inserted in the blind hole of the serrated block, and a second end inserted in the inner aperture of the box head. The C-shaped retainer surrounds the ratchet ring. The ratchet ring is inserted in the box head to be engaged with the serrated block.
Claims1
A spanner comprises:
- a handle bar, a box head disposed on the handle bar, a ratchet ring, a C-shaped retainer, a spring, and a serrated block,
- the box head having an arc-shaped guide wall, an inner aperture formed on the arc-shaped guide wall, an inner groove confined by the arc-shaped guide wall, and the inner aperture communicating with the inner groove,
- the ratchet ring having a plurality of ratchet teeth,
- the serrated block having a plurality of ratchet serrations, an arc-shaped blocking face, and a blind hole,
- the serrated block inserted in the inner groove of the box head,
- the spring having a first end inserted in the blind hole of the serrated block, and a second end inserted in the inner aperture of the box head,
- the C-shaped retainer surrounding the ratchet ring,
- the ratchet ring inserted in the box head,
- the C-shaped retainer disposed between the ratchet ring and the box head, and
- the ratchet teeth of the ratchet ring engaging with the ratchet serrations of the serrated block.
Dependencies are inferred from the claim text.