| 摘要 |
PROBLEM TO BE SOLVED: To install component parts effectively and establish a small construction. SOLUTION: Contacting piece 4 (46, 47, 48) is arranged to be inserted from above into a hole provided in a base 1. Part of the contacting piece 4 adjacent to one end of an electromagnet block is formed as a bend 53 which is bent so as to be positioned under the electromagnet block. An electric insulating material 3 to cover at least one end of this block 2 is consolidated with the base 1 so that the bend 53 is covered.
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