| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary knob (a slider mounting body) which is capable of surely preventing a slider from being removed by an organic solvent and also includes a light guide function at the same time.SOLUTION: A rotary knob 100 comprises a slider mounting surface 113 and fixes a slider 140 thereto by inserting a mounting protrusion 121 which is provided on the slider mounting surface 113, into a mounting hole 147 provided on the slider 140 and heat-caulking the distal end of the mounting protrusion 121. The rotary knob 100 is formed from two kinds of synthetic resins A1, A2 by two-color molding. Between the two kinds of synthetic resins A1, A2, the synthetic resin A2 having higher organic solvent resistance is a light-transmissive synthetic resin and the mounting protrusion 121, the slider mounting surface 113 connected to the mounting protrusion 121, a light guide part 123 for guiding incident light, and an illumination part 119 connected to the light guide part 123 for radiating light guided by the light guide part 123 are formed from the synthetic resin A2. |
