High-torque reversible ratcheting wrench
OwnerBobby Huinventor
Life of this patent
Estimating the term…
Abstract
A reversible ratcheting wrench includes a handle having a head, a drive member rotatably received in a hole, and a pawl slidably received in the compartment that is defined in an inner periphery delimiting the hole and that is communicated with the hole. A plurality of teeth are formed on a toothed side thereof and have a radius of curvature larger than that of teeth on an outer periphery of the drive member. When the pawl is in either ratcheting position, a portion of the teeth of the pawl meshes with the teeth of the drive member and the other portion of the teeth of the pawl are disengaged from the teeth of the drive member, leaving gap to avoid the seesaw effect that damages the teeth of the pawl and that reduces the torque-bearing capacity.
Claims8
A reversible ratcheting wrench comprising:
- a handle including a head, the head including a hole delimited by an inner periphery, a compartment being defined in the inner periphery delimiting the hole and communicated with the hole;
- a drive member rotatably received in the hole of the head, a plurality of teeth being provided on an outer periphery of the drive member and having a radius of curvature;
- and
- a pawl received in the compartment of the handle, the pawl being slidable between a first ratcheting position corresponding to a first ratcheting direction of the wrench and a second ratcheting position corresponding to a second ratcheting position of the wrench that is opposite to the first ratcheting direction, the pawl including a plurality of teeth on a toothed side thereof, the teeth of the pawl having a radius of curvature larger than that of the teeth of the drive member;
- wherein when the pawl is in the first ratcheting position, a portion of the teeth of the pawl engages with the teeth of the drive member while another portion of the teeth of the pawl disengages from the teeth of the drive member, leaving a gap between said another portion of the pawl and the teeth of the drive member;
- and
- wherein when the pawl is in the second ratcheting position, said another portion of the teeth of the pawl engages with the teeth of the drive member while the portion of the teeth of the pawl disengages from the teeth of the drive member, leaving a gap between the portion of the pawl and the teeth of the drive member.
Dependencies are inferred from the claim text.