Ratchet wrench
OwnerChih-Min CHANGinventor
Life of this patent
Estimating the term…
Abstract
A ratchet wrench includes a main body provided at an end portion thereof with an accommodation, a pawl installed in the accommodation, and a ratchet wheel rotatably installed in the accommodation and engaged with the pawl. The main body has a through hole into which a plug is detachably inserted. The through hole of the main body is provided through a surface of the main body and communicated with the accommodation. Removing the plug from the through hole of the main body enables lubricant or cleaner to be poured through the through hole into and out of the accommodation for lubricating or cleaning the internal parts of the ratchet wrench so as to make the ratchet wheel run more smoothly.
Claims10
A ratchet wrench comprising:
- a main body provided at an end portion thereof with an accommodation;
- a pawl installed in the accommodation;
- and
- a ratchet wheel rotatably installed in the accommodation and engaged with the pawl;
- wherein the main body includes at least one through hole into which a plug is detachably inserted;
- the through hole is provided through a surface of the main body and communicated with the accommodation.
Dependencies are inferred from the claim text.