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US 2004/0055424 A1Published application
Operating device for a screwdriver
OwnerChin-Tan Huanginventor
Life of this patent
Estimating the term…
Abstract
A operating device for a screwdriver includes a body partially secured in a handle of the screwdriver, a barrel partially and pivotally received in the body and a controller pivotally mounted on the body for controlling an operated direction of the operating device.
Claims13
An operating device for a screwdriver, comprising:
- a body;
- a barrel extending through the body and pivotally partially received in the body, the barrel having a polygonal hole centrally defined therein, the polygonal hole adapted to partially receive a tip;
- and
- a controller mounted to the body for controlling an operate direction of the screwdriver;
- wherein the improvement comprises:
- the polygonal hole extending through the barrel.
3 more elements
An operating device for a screwdriver, comprising:
- a body including:
- a first through hole longitudinally and centrally defined in the body, the first through hole having an enlarged portion formed in one end of the body;
- a first channel defined in the body and corresponding to the enlarged portion of the firs
- a through hole, the first channel communicating with the enlarged portion of the first through hole;
- and
- a second channel defined in the body, the second channel corresponding to the first channel and the enlarged portion of the first through hole, the second channel communicating with the enlarged portion of the first through hole;
- a barrel partially and pivotally received in the first through hole in the body and including:
- a polygonal hole defined in the barrel and centrally extending through the barrel for receiving a long tip;
- and
- a series of teeth formed on an outer periphery of the barrel and corresponding to the enlarged portion of the first through hole;
- and
- a controller pivotally mounted on the body for controlling an operate direction of the screwdriver, the controller including:
- a first pawl movably received in the first channel in the body and selectively engaged to the series of teeth of the barrel to control the operate direction of the screwdriver, the first pawl extending over the body and having a first guide side formed on a free end of the first pawl;
- a first resilient member mounted in the first channel and abutting against the first pawl to push the first pawl toward the series of teeth of the barrel;
- a second pawl movably received in the second channel in the body and selectively engaged to the series of teeth of the barrel to control the operate direction of the screwdriver, the second pawl extending over the body and having a second guide side formed on a free end of the second pawl;
- a second resilient member mounted in the second channel and abutting against the second pawl to push the second pawl toward the series of teeth of the barrel;
- and
- a cover pivotally mounted to the body for driving the first pawl and the second pawl to control the operate direction of the screwdriver, the cover having a clutch attached to the cover, the clutch having a first side corresponding to the first guide side of the first pawl and a second side corresponding to the second guide side of the second pawl.
15 more elements
Dependencies are inferred from the claim text.