| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the influence of creep to prevent backlash in a connection portion between an operation knob part and a lever part. <P>SOLUTION: An operation knob 14 has a flexible part 60 which includes an engagement hole 14a for internally engaging with a lever part 12, is pressed by the lever part 12 engaged with the operation knob 14 to bend outward, and resiliently holds the lever part 12. The flexible part 60 includes protrusion parts 64a, 64b protruding radially inward as compared with other portions. In a position where the flexible part 60 is disposed, the lever part 12 is brought into contact with the operation knob 14 only at the protrusion parts 64a, 64b and on surfaces 68a, 68b opposite the protrusion parts 64a, 64b. <P>COPYRIGHT: (C)2013,JPO&INPIT |
