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    • 2. 发明公开
    • A pneumatic ejector
    • 奥斯威尔(PneumatischBetätigterAuswerfer)。
    • EP0638398A1
    • 1995-02-15
    • EP94305382.7
    • 1994-07-21
    • Gardiner, Richard
    • Gardiner, Richard
    • B26D7/18B26D5/12
    • B26D5/12B26D7/1818F15B15/10Y10T83/2122Y10T83/2133Y10T83/2153
    • A pneumatic ejector comprises a rigid support member 18 having a base portion 20 and an upstanding boss 21 integral with the base portion, and an elastomeric ejection element 19 having a diaphragm portion 27 and a skirt portion 28 surrounding the diaphragm portion and secured to the boss. The support member 18 has an air inlet passage 22 for supplying air under pressure to move the diaphragm away from the boss. The upper end of the upstanding boss may be concave and the diaphragm may be of complementary shape. The diaphragm may have an integral protrusion 29 upstanding from a central region of the diaphragm. Additionally or alternatively, the diaphragm may have an integral protrusion 30 which depends from a central region of the diaphragm and which extends into a through bore 23 in the upstanding boss, the through bore communicating with the air inlet passage in the support member.
    • 气动喷射器包括刚性支撑构件18,其具有基部20和与基部一体的直立凸台21以及具有隔膜部分27的弹性体弹出元件19和围绕隔膜部分并固定到凸台的裙部28 。 支撑构件18具有用于在压力下供应空气的空气入口通道22以使隔膜从凸台移动。 直立凸台的上端可以是凹形的并且隔膜可以是互补形状。 隔膜可以具有从隔膜的中心区域直立的整体突起29。 附加地或替代地,隔膜可以具有从隔膜的中心区域延伸并且延伸到直立突出部中的通孔23中的整体突起30,该通孔与支撑构件中的空气入口通道连通。