| 摘要 |
PURPOSE:To improve assembling workability and package density by arranging single or plural rows of shielding sections in parallel with the axial direction of a shaft coupled directly or indirectly with an operating handle. CONSTITUTION:A shielding section 2 is secured to a shaft 4 coupled directly with the operating handle 8 of a truck controller. A printedboard 3 on which a light emitting/receiving device 1 for detecting the notching position is mounted is secured to the housing side. Rotary position of the shielding section 2 caused by rotation of the operating handle 8 is detected through the light-receiving section of the light emitting/receiving device 1 mounted on the printedboard 3. The shielding sections 2 are arranged in single or plural rows in parallel with the axis of the direct-coupled shaft 4. By such arrangement, assembling workability and package density are improved resulting in a double system notch command device optimal for miniaturization. |
