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    • 1. 发明公开
    • Air passage shifting device for a pneumatic tool
    • Luftzufuhr-Schieberfürein inflatisches Werkzeug
    • EP1247620A2
    • 2002-10-09
    • EP01120175.3
    • 2001-08-22
    • Tseng, Ming-Qun
    • Tseng, Ming-Qun
    • B25B21/00B25F5/00
    • B25B21/00B25F5/00
    • An air passage shifting device for a pneumatic tool includes a tube connected to a casing in which a rotator is received. A first passage and a second passage are respectively connected in communication between the casing and the tube. An inlet defined radially through the tube and communicates with a passage in the handle of the tool. A control bar is received in the tube and two recesses are respectively defined in an outer periphery of the control bar. The two recesses movably communicate with the first passage and the second passage when pulling or rotating the control bar to guide air into one of the first passage and the second passage to rotate the rotator.
    • 用于气动工具的空气通道移动装置包括连接到壳体的管,其中容纳旋转器。 第一通道和第二通道分别在壳体和管之间连通。 径向地穿过管并且与工具手柄中的通道连通的入口。 控制杆被容纳在管中,并且两个凹槽分别限定在控制棒的外周。 当拉动或旋转控制杆以将空气引导到第一通道和第二通道中的一个以旋转旋转器时,两个凹部可与第一通道和第二通道可移动地连通。