Method for manufacturing a ratchet type ring spanner having a larger cavity for receiving a larger pawl
OwnerBobby Huinventor
Life of this patent
Estimating the term…
Abstract
A method for forming a cavity in a handle of a ratchet type ring spanner includes providing a ring spanner having a handle and a head extending from the handle, forming a cutout on a face of the head, the cutout being communicated with a hole of the head, placing a cutter in the hole of the head, and moving the cutter toward the handle until a shaft of the cutter is stopped by a periphery defining the cutout, thereby forming a cavity in the handle. The cavity thus formed is larger than that formed by conventional methods. Thus, a larger pawl can be received in the larger cavity, which, in turn, increases the overall torque-bearing capacity of the ratchet type ring spanner.
Claims7
A method for manufacturing a ratchet spanner comprising:
- providing a spanner having a handle and a head extending from the handle, with the head including a first face and a second face opposite to the first face, with the head having a thickness between the first and second faces, with the head having a hole defined therein and extending from the first face, with the hole having a periphery and having a size parallel to the first face;
- forming a cutout extending from the first face of the head, with the cutout having a periphery and having a size parallel to the first face smaller than the size of the hole, with the cutout extending outward of the periphery of the hole and communicated with the hole of the head at the first face;
- placing a cutter in the hole of the head, with the cutter placed in the hole having a size parallel to the first face smaller than the size of the hole and greater than the cutout and having a thickness less than the thickness between the first and second faces, with a shaft extending from the cutter and having a size parallel to the first face smaller than the size of the cutout;
- and
- moving the cutter placed in the hole and intermediate the first and second faces toward the handle until the shaft of the cutter moves out of the hole and into the cutout and is stopped by the periphery defining the cutout, thereby forming a cavity spaced from the first and second faces in the handle.
Dependencies are inferred from the claim text.