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    • 6. 发明申请
    • Pneumatic impact tool and method
    • 气动冲击工具及方法
    • US20060278415A1
    • 2006-12-14
    • US11449206
    • 2006-06-07
    • Thomas Reis
    • Thomas Reis
    • B23Q5/00
    • B25D9/18B65D88/66
    • A pneumatic impact tool and method include a cylinder pipe or housing part closed with a cover, as well as an impact piston that can move in the cylinder pipe for forming a first pressure chamber between an impact plate and the impact piston. A second pressure chamber is formed between a cover and the impact piston. The cover is provided with at least one opening, the surface of which is smaller than the piston surface, whereby the impact piston seals the opening when it is in its fully retracted position. The impact piston is driven into its sealing position by applying a relatively low excess pressure in the first pressure chamber while the second pressure chamber is relatively free of pressure. The pressurizing of the impact piston occurs with relatively high pressure in the area of a partial surface of the end surface of the impact piston through the opening. In addition, the movement of the impact piston out of the sealing position pressurizes the entire end surface of the impact piston with the relatively high pressure, whereby the movement of the piston out of the sealed position is triggered by venting of the first pressure chamber.
    • 一种气动冲击工具和方法包括:用盖子封闭的气缸管或壳体部分,以及能够在气缸管中移动以在冲击板和冲击活塞之间形成第一压力室的冲击活塞。 在盖和冲击活塞之间形成第二压力室。 该盖设置有至少一个开口,其表面小于活塞表面,由此冲击活塞在其处于其完全缩回位置时密封开口。 冲击活塞通过在第一压力室中施加相对较低的过剩压力而被驱动到其密封位置,而第二压力室相对没有压力。 冲击活塞的加压在冲击活塞的端面的部分表面的区域中通过开口发生相对较高的压力。 此外,冲击活塞在密封位置之外的运动以相对较高的压力对冲击活塞的整个端面进行加压,由此通过第一压力室的排放来触发活塞离开密封位置的运动。