发明名称 Tool bit chuck
摘要 A tool bit chuck for holding a bit (1) with axially extending grooves (2) closed at the ends thereof spaced apart in the axial direction. Latching elements (4) in the form of cylinders are radially displaceable into and out of the grooves (2). The latching elements (4) have an axis of rotation extending transversely of the axis of the receiving sleeve (3) in the chuck, whereby the latching elements (4) act as roll bodies in the event of an axial shift between the bit (1) and the receiving sleeve (3) so that friction which could result in premature wear, is prevented.
申请公布号 US5807040(A) 申请公布日期 1998.09.15
申请号 US19960729824 申请日期 1996.10.08
申请人 HILTI AKTIENGESELLSCHAFT 发明人 BONGERS-AMBROSIUS, HANS-WERNER;EICHHORN, JOERG
分类号 B23B31/107;B23B31/22;B25D17/08;(IPC1-7):B23B31/117 主分类号 B23B31/107
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