Clamp device of a drill and air drive drill

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9296048
APP PUB NO 20130108386A1
SERIAL NO

13666191

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A drive system can be simplified and downsized, improves its operability, and can be configured to clamp or unclamp a work at an accurate drive timing. This invention is a clamp device of a drill. This invention includes a clamp collet inserted into a hole formed in the work, a mandrels inserted slidably inside the clamp collet, a piston-cylinder mechanism reciprocating the mandrels axially, and a directional valve driving a piston. The directional valve includes a forward introduction port introducing a pressured fluid for advancing a ram of the drill, and a main introduction port introducing the main pressured fluid. When the pressured fluid is introduced to the forward introduction port, it is clamped by a one-way movement of the piston.

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Patent Owner(s)

Patent OwnerAddress
SUGINO MACHINE LIMITEDNAMERIKAWA CITY TOYAMA 936-8577

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ihara, Minoru Uozu, JP 12 87
Uchiuzo, Hideki Namerikawa, JP 7 46

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