发明名称 |
Drill chuck for use in percussion drilling |
摘要 |
In a chuck for use in a drilling device, such as a hammer drill, capable of performing rotary or rotary/percussion drilling, clamping jaws are provided to secure a tool in the drilling device. The clamping jaws each have a convex surface transverse to the chuck axis and with the surface directed inwardly toward the axis. The more radially inward portion of the convex surface has a V-shaped notch extending in the axial direction of the chuck. The notch forms a pair of spaced edges which grip the surface of the tool secured in the chuck so that the tool can be reliably rotated.
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申请公布号 |
US4630836(A) |
申请公布日期 |
1986.12.23 |
申请号 |
US19860820833 |
申请日期 |
1986.01.21 |
申请人 |
HILTI AKTIENGESELLSCHAFT |
发明人 |
HUNGER, JOSEF;NEUMAIER, ANTON |
分类号 |
B23B31/173;B23B31/00;B23B31/10;B23B31/107;B23B31/12;B25D17/08;(IPC1-7):B23B31/04 |
主分类号 |
B23B31/173 |
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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