发明名称 |
SCHNELLSPANNENDES SPANNFUTTER |
摘要 |
A chuck is provided for retaining the shank of a tool bit or accessory, having a fixed diameter, inserted in a central channel at a distal end of the chuck. At least one torsion spring is mounted axially within a housing and has an inner dimension and shape comparable to the shank's outer dimension and shape. A mechanism winds and unwinds the torsion spring to respectively grip or release the shank, the winding being in a rotational direction consistent with a normal operating rotational direction of the chuck such that the shank tends to further wind the torsion spring for further self-tightening in normal operation. |
申请公布号 |
AT504377(T) |
申请公布日期 |
2011.04.15 |
申请号 |
AT20030766091T |
申请日期 |
2003.08.01 |
申请人 |
MAXTECH MANUFACTURING INC. |
发明人 |
ALLAN, SCOTT;HASAN, MAZ;VASUDEVA, KAILASH;SINGH, SATNAM |
分类号 |
B23B31/117 |
主分类号 |
B23B31/117 |
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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