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    • 45. 发明专利
    • Impeller
    • 叶轮
    • JP2008115759A
    • 2008-05-22
    • JP2006299634
    • 2006-11-02
    • Sigma KkYamada Seisakusho Co Ltdシグマ株式会社株式会社山田製作所
    • IKEDA KAZUOOKUDA YASUTAKAADACHI RYOHEIMARUYAMA SATOSHIHOSHINO SATORU
    • F04D29/22
    • F04D29/20B29C45/14065B29C45/1459B29C45/842B29L2031/08F04D29/026F04D29/2227F05D2300/10F05D2300/44Y10T29/49316Y10T29/49325Y10T29/49329
    • PROBLEM TO BE SOLVED: To provide an impeller in which a metallic bush can be inserted correctly into a synthetic resin impeller main body manufactured by resin molding using a die, and a determination as to whether the impeller has been manufactured correctly is made easily. SOLUTION: The impeller comprises: the metallic bush 2 comprising a circumferential boss portion 21 having a substantially truncated cone-shaped throttle portion 211 positioned on a front surface axial end side, a periaxial support boss portion 22 positioned in an axial center, and a circumferential protruding portion 24 positioned on a back surface axial end side; and the impeller main body A made of synthetic resin and formed with a V-shaped bulging portion 11 that bulges axially in the center of a front surface side of a disk-shaped vane portion fulcrum 1, in which a plurality of vanes 12 are formed integrally on the periphery of the V-shaped bulging portion 11. An outer diameter of the circumferential protruding portion 24 of the bush 2 is formed to be smaller than an outer diameter of an axial end location of the throttle portion 211, the circumferential protruding portion 24 is positioned on a back surface side of the V-shaped bulging portion 11, and the bush 2 is inserted into the V-shaped bulging portion 11. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种叶轮,其中金属衬套可以正确地插入到通过使用模具的树脂成型制造的合成树脂叶轮主体中,并且确定是否正确地制造了叶轮 容易。 解决方案:叶轮包括:金属衬套2,其包括周向凸台部分21,其具有位于前表面轴向端侧的基本上截头圆锥形的节流部分211,位于轴向中心的轴向支撑凸台部分22, 以及位于后表面轴向端侧的周向突出部24; 以及由合成树脂制成的叶轮主体A,其形成有在形成有多个叶片12的盘形叶片部分支点1的前表面侧的中心轴向凸出的V形凸出部分11 一体地形成在V形凸出部11的周边上。衬套2的周向突出部24的外径形成为小于节流部211的轴向端部的外径,周向突出部 24位于V形凸出部11的背面侧,衬套2插入V形凸出部11中。(C)2008,JPO&INPIT