Patent ID: 7472883
Filing Date: 2009-01-06
Classification: F16K,Y10T

Abstract:
1. An electromagnetic actuator comprising: a bobbin including a bobbin cylinder around which a coil is wound and a bobbin flange for holding a winding end of the coil at an end of the bobbin cylinder; and a stator including a stator cylindrical part inserted in the bobbin and a stator flange extending from the stator cylindrical part toward the outer periphery, the stator flange being magnetically coupled to a yoke disposed its outer periphery, wherein the bobbin flange is provided with a positioning projection, and the stator flange is provided with a positioning hole to which the positioning projection is inserted so that the bobbin and the stator are positioned relative to each other and are molded together with a molding resin, at least one of the bobbin and the stator has an axial-gap-forming means for forming a predetermined axial gap between the stator flange and the bobbin flange in the axial direction, and a resin passing gap which opens in the axial direction is formed between the positioning hole and the positioning projection inserted in the positioning hole.