Patent ID: 7549207

Claim:
A manufacturing method for an actuator including a casing and a housing, one of which accommodates a solenoid actuator including a coil configured to axially move a magnetic member when supplied with electricity, the method comprising: setting a metallic ring in a molding die; injection molding a first flange portion of the casing using one annular hooking piece of the metallic ring as a part of a surface of the molding die so as to outsert-mold the metallic ring on a molded surface of the first flange portion, the molded surface being opposite to a first connecting end surface of the first flange portion; engaging the first flange portion with a second flange portion of the housing so as to be opposed to each other; applying force to bend the metallic ring to form an other annular hooking piece such that the first and the second flange portions are interposed between the one and other annular hooking pieces from both opposite sides in an axial direction, thereby crimping and fixing the first connecting end surface of the casing with a second connecting end surface of the housing.