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US 6,796,477 B2Granted
Nail-hammering apparatus
AssigneeAplus Pneumatic Corp.
InventorMu-Yu Chen
Life of this patent
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Abstract
A nail-hammering apparatus includes a hammer, a first solenoid, a second solenoid and a control device. The hammer can hammer a nail into a workpiece. The first solenoid can be turned on so as to drive the hammer. The second solenoid can be turned on in order to drive the hammer after the first solenoid. The spring tends to bias the hammer to its original position when the second solenoid is turned off. If the nail has not entirely enters the workpiece, the control device turns on the second solenoid so as to drive the hammer one more time.
Claims13
A nail-hammering apparatus including:
- a hammer for hammering a nail into a workpiece;
- a first solenoid that can be turned on so as to drive the hammer;
- a second solenoid that can be turned on in order to drive the hammer after the first solenoid;
- a spring for biasing the hammer to its original position when the second solenoid is turned off;
- and
- a control device for turning on the second solenoid so as to drive the hammer if the nail has not entirely entered the workpiece wherein the control device includes a sensor for sensing the presence of the hammer and producing a STOP signal so as to prevent the control device from driving the hammer if the hammer hammers the nail entirely into the workpiece.
3 more elements
Dependencies are inferred from the claim text.