| 摘要 |
PURPOSE: A device for chucking tools of a handpiece is provided to improve assembly through the simple structure thereof and to reduce production costs. CONSTITUTION: A device for chucking tools of a handpiece comprises: a head(20) having a bore; a cartridge(30) which is installed to the bore of the head and has a bore; a tool(40) in which a hanging groove is formed on the exterior upper part; a gear(50) mounted on the exterior of the cartridge; a clamp(60) which is installed in order to revolve between a clamping position and an unclamping position; a locking spring(70) giving elastic force in the direction that a hanging protrusion is fitted into in a hanging groove; a push button for pushing a first arm to the bore of the head; and a return spring(90) giving elastic force in order to restore the push button to the initial position.
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