| 摘要 |
An electromagnetically driving part for use in opening/closing a valve or the like, comprises a guide cylinder 17 in which a movable core 18 is received slidably, and a fixed core 15 fixed to the guide cylinder 17. The fixed core 15 and the guide cylinder 17 are coupled with each other by welding in a state that the guide cylinder 17 is press-fitted onto the fixed core 15. An air gap 16a is formed between an outer circumferential surface of the fixed core 15 and an inner circumferential surface of the guide cylinder 17. The fixed core 15 and the guide cylinder 17 are welded with each other in a portion where the air gap 16a is formed. Accordingly, it is possible to weld a guide cylinder and a fixed core with each other surely, and to miniaturize an electromagnetically driving part.
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