| 摘要 |
<P>PROBLEM TO BE SOLVED: To further enlarge the ratio of the surface area of a knob to the overall surface area during installation. <P>SOLUTION: The diameter 201 of the knob 111 is longer than the diameter 202 of a coil winding part 115C of a bobbin 115. A coil antenna is formed of an electric conductor wound around an axis in a front-rear direction and smaller than an outer edge of the knob 111. For example, when a switch 100 is viewed in the front-rear direction from a front side to a back side as shown in Fig.7A (not shown), the coil antenna is formed inside the outer edge of the knob 111. Namely, the coil antenna is not present at a ring 112 around the knob 111. Since the coil antenna is not present, the ring 112 around the knob 111 is molded such that a part viewed in Fig.7A become correspondingly thinner. The present invention is applicable to, for example, a switch device. <P>COPYRIGHT: (C)2010,JPO&INPIT |
