Patent ID: 6930576
Filing Date: 2005-08-16
Classification: F02N,H01H,H02K

Abstract:
1. An electromagnetic switch for a starter, comprising: a switch case defining an axial direction and having a cylindrical outer surface providing a cylindrical open end formed to open in the axial direction and to have both a cylindrical distal end and an inner bottom; a cap defining an axial direction and having a cylindrical outer surface of which one end serves as a cylindrical fitting end on the outer surface on which an annular groove is formed to completely surround the cylindrical fitting end in a circumferential direction thereof and to divide the cylindrical fitting end from the cylindrical outer surface of the cap, the cylindrical fitting end being smaller in diameter than the cylindrical outer surface of the cap and having a circumferential outer edge on which an oblique surface which is oblique to the axial direction of the cap is formed, and the cylindrical outer surface of the cap being at least equal in diameter to the cylindrical outer surface of the switch case, the cap being fixed with the switch case by inserting the cylindrical fitting end of the cap into the cylindrical open end of the switch case so that the distal end of the cylindrical open end of the switch case is located over the annular groove on the cylindrical fitting end of the cap and the cylindrical fitting end is stopped by the inner bottom of the cylindrical open end of the switch case and radial-inwardly deforming the distal end into the groove so that the distal end is fixed with the groove; and a seal member is inserted between a peripheral periphery of the inner bottom of the cylindrical open end and the circumferential outer edge of the cylindrical fitting end and is forcibly pushed onto the oblique surface in the axial direction when a force is applied to the distal end of the cylindrical open end of the switch case in the radial direction during the radial-inward deforming assembling operation performed with the distal end.