发明名称 |
CHUCK DEVICE, ESPECIALLY FOR DENTAL TOOLS |
摘要 |
<p>A socket, which receives a tool having a cylindrical shaft and which is mounted for rotation to rotate the tool, has an outer sleeve which receives a clamping sleeve and a ram for engaging a first end of the clamping sleeve. The first end of the clamping sleeve is provided with slots defining resilient tongues which are moved from a clamping position radially outward to a position for releasing the shaft by engagement with the ram. The ram has either an outer conically tapered surface or partially conically outer tapered surfaces on projections which engage inner tapered surfaces of each of the tongues or fingers. Preferably, the tapers of the ram and fingers are selected so that only substantially a line contact is formed therebetween to reduce the force necessary to move the fingers or tongues radially outward to the declamping or disengaging position.</p> |
申请公布号 |
EP0273259(B1) |
申请公布日期 |
1991.03.20 |
申请号 |
EP19870118244 |
申请日期 |
1987.12.09 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
FLEER, ERNST-OTTO;LANDGRAF, HERMANN;SCHWARZ, WERNER |
分类号 |
A61C1/14;B23B31/02;B23B31/20 |
主分类号 |
A61C1/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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