SHAFT-FASTENING STRUCTURE

摘要

PROBLEM TO BE SOLVED: To materialize a shaft-fastening structure positively allowing separation form a shaft in removal even if a color body has plastic deformation or a screw part has deformation. SOLUTION: A recessed part 15 having two internal wall surfaces run in parallel with a slit 12 is formed on one side of a color body 10 disconnected through the slit 12. A loose hole 13 is formed between the slit 12 and the recessed part 15. A screw hole 14 is formed on the other side relative to the slit 12. A bolt 2 is inserted toward the loose hole 13 from the screw hole 14 side. A retaining ring groove is formed at the given position of the threads of the bolt 2. After inserting the bolt 2, a retaining ring 22 is placed in the groove.