Wrench with a simplified structure
OwnerBobby Huinventor
Life of this patent
Estimating the term…
Abstract
A wrench includes a handle, a head extended from the handle, and a drive member rotatably mounted in a compartment of the head. A cavity is defined in a web between the handle and the head and communicated with the compartment. A transverse hole is defined in the web and includes an inner end communicated with the cavity and an outer end communicated with outside. A pawl is slidably mounted in the cavity and includes a toothed side, an attachment side, and a pressing side. An elastic element includes a first end attached to the attachment side of the pawl and a second end attached to an anchor securely mounted in the transverse hole. The toothed side of the pawl is biased to engage with the drive member and the pressing side of the pawl is biased to press against a wall defining the cavity.
Claims14
A wrench comprising:
- a handle;
- a head extended from the handle and including a compartment, a web being defined between the handle and the head, a cavity being defined in the web and communicated with the compartment, a transverse hole being defined in the web and including an inner end communicated with the cavity and an outer end communicated with outside;
- a drive member rotatably mounted in the compartment and including a plurality of teeth on an outer periphery thereof;
- a pawl slidably mounted in the cavity and including a toothed side, an attachment side, and a pressing side;
- an anchor securely mounted in the transverse hole;
- and
- an elastic element including a first end attached to the attachment side of the pawl and a second end attached to the anchor, the pawl being biased by the elastic element such that the toothed side of the pawl is biased to engage with the teeth of the drive member and that the pressing side of the pawl is biased to press against with a wall defining the cavity.
Dependencies are inferred from the claim text.