| 摘要 |
PROBLEM TO BE SOLVED: To smoothly insert an electric wire CA into a mark tube MA so as to install the mark tube MA in the wire CA. SOLUTION: A guide 40 for electric wire CA has guide pieces 42, 42,... for dividing the periphery of a core A of reference ring 10 into three in the circumferential direction for operating and closing. The guide 40 guides a core CA1 of the wire CA through a guide passage 40a formed by the guide pieces 42 42..., and thereafter, the guide pieces 42, 42... are opened corresponding to a coating CA2, and the wire Ca can be thereby securely inserted into a mark tube Ma held by a holding unit 50. |
