Reversible high-torque screwdriver
OwnerBobby Huinventor
Life of this patent
Estimating the term…
Abstract
A screwdriver includes a handle, a first body having an end securely mounted in the handle, a second body rotatably mounted in the first body, a ratcheting mechanism slidably mounted in a receiving section in the other end of the first body, and a switch member pivotally mounted to the other end of the first body. The switch member is pivotable between a first position and a second position to control engagement/disengagement of the ratcheting mechanism with/from teeth of the second body and to control relative rotation between the first body and the second body. A reinforcing member is provided in the receiving section to withstand high-torque operation.
Claims20
A screw driver comprising:
- a handle;
- a first body comprising a first end securely mounted in the handle and a second end, the second end of the first body including a receiving section and an axial hole in communication with the receiving section, the receiving section including a peripheral wall;
- a second body rotatably mounted in the axial hole of the first body, a plurality of teeth being formed on an outer periphery of the second body;
- a ratcheting mechanism slidably mounted in the receiving section for releasably engaging with the teeth of the second body;
- a switch member pivotally mounted to the second end of the first body, the switch member being pivotable between a first position and a second position to control engagement/disengagement of the ratcheting mechanism with/from the teeth of the second body and to control relative rotation between the first body and the second body;
- and
- at least one reinforcing member mounted to the peripheral wall of the receiving section, and with the ratcheting mechanism pressing against said at least one reinforcing member when the switch member is in one of the first position and the second position.
A reinforcing member for a high-torque screwdriver, the reinforcing member being made of high-strength steel and mounted in a receiving section of a high-torque screwdriver, the reinforcing member being mounted between a ratcheting mechanism of the high-torque screwdriver and a peripheral wall of receiving section, the ratcheting mechanism pressing against the reinforcing member such that the reinforcing member withstands the pressing force and friction force from the ratcheting mechanism when the high-strength screwdriver is turned.
Dependencies are inferred from the claim text.