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    • 10. 发明公开
    • WERKZEUGHALTER
    • EP3079859A1
    • 2016-10-19
    • EP14809028.5
    • 2014-12-09
    • Hilti Aktiengesellschaft
    • HAUPTMANN, UdoSTROISSNIGG, HorstMEIXNER, Ralf
    • B25D17/08
    • B25D17/088B25D2217/0038B25D2250/075
    • The invention relates to a tool holder for a rotating and chiseling hand-held machine tool, which tool holder has a tubular basic body, which surrounds a receiving space coaxially to an axis for receiving a tool, and which has at least one through-hole in the radial direction. An insert (25) is inserted in the through-hole and has a connecting piece (24) radially projecting into the receiving space. The connecting piece has along the axis successively a main portion (29) and a rear portion (27). Along the working axis (10), the main portion (29) has a constant, trapezoidal cross section that is defined by a roof surface (30) and by two opposite mutually inclined side surfaces (31). The rear portion (27) has an end face (36) that is facing away from the main portion (29) and two mutually opposite inlet surfaces (38). The inlet surfaces (38) respectively connect the end face (36) to one of the side surfaces (31). The inlet surfaces (38) are inclined between 2 degrees and 10 degrees with respect to the side surfaces (31).
    • 本发明涉及一种用于旋转和凿削手持式机床的刀架,该刀架具有管状基体,该管状基体围绕与用于接收工具的轴线同轴的容纳空间并且具有至少一个通孔 在径向上。 插入件(25)插入通孔并具有径向伸入容纳空间的连接件(24)。 连接件沿轴线依次具有主要部分(29)和后部(27)。 沿着工作轴线(10),主要部分(29)具有恒定的梯形横截面,该梯形横截面由屋顶表面(30)和两个相对的相互倾斜的侧表面(31)限定。 后部(27)具有背离主要部分(29)的端面(36)和两个彼此相对的入口表面(38)。 入口表面(38)分别将端面(36)连接到侧表面(31)中的一个。 入口表面(38)相对于侧表面(31)倾斜2度和10度之间。