| 摘要 |
PURPOSE:To enable to stably slide the push botton toward sliding direction, even if any force other than the sliding direction is given to the push button, by the constitution that the push botton of the front end of operating lever is pushed while being guided with the guide convex part of the frame. CONSTITUTION:The guide convex 2 is incorporatedly formed in parallel at the front end of the bottom plate 1a of the frame lower plate 1, and each convex 2 is provided with the guide plate 2a, guide groove 2b and both side folding guide 2c. With this constitution, the push button 6 is guided with the convex 2 provided with the lower plate 1 at all times to be slided toward A and B. Thus, even if any force toward the direction other than A and B is given to the push button 6, it is stably slided toward slided direction, the operating lever is stably slided, allowing to increase the channel selection accuracy. |
