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US 8,161,848 B2Granted
Screwdriver with changeable head
AssigneeHon Hai Precision Industry Co., Ltd.
InventorCheng-Chi Chen
Life of this patent
Estimating the term…
Abstract
A screwdriver is convenient for changing driver heads. A button is released to drive an arm of the screwdriver in a first position to grasp a fixing portion of the driver head. The button is pressed to drive the arm to rotate from the first position to a second position to deform an elastic member, with the arm releasing the driver head to make the driver head drop out of the handle. Each of the driver head can be easily mounted to the screwdriver, and detached from the screwdriver.
Claims7
A screwdriver comprising:
- a driver head comprising a fixing portion;
- a handle defining a first slot in a lower part of the handle for receiving the driver head, a second slot in an upper portion of the handle, and a third slot defined in the handle and communicating with an upper part of the first slot and with the second slot;
- and
- a resisting portion received in the second slot and comprising:
- at least one arm each comprising a slanting connecting pole and a stress portion bent from a top end of the slanting connecting pole;
- the top end of the slanting connecting pole rotatably mounted to a connecting hole defined on a bottom of the third slot, and the arm capable of rotating around the connecting hole to a first position to grasp the fixing portion of the driver head by the slanting connecting pole when the stress portion being pushed upwardly, or rotating to a second position to release the fixing portion of the driver head when the stress portion being pushed downwardly;
- at least one elastic member capable of abutting the stress portion and pushing the stress portion upwardly;
- and
- a button protruding out of the handle through the second slot, the button operable to abut against the stress portion and pushing the stress portion downwardly.
6 more elements
Dependencies are inferred from the claim text.