| 摘要 |
<p>PURPOSE:To simply obtain maltifunction by forming a joint spherical joint part to the tip of an operation rod, drawing plural lines on the side of the spherical joint part and forming an optical detecting mechanism for detecting the lines to operate the operation rod. CONSTITUTION:The spherical joint part 3 formed on the tip of the stick-like operation rod 2 is engaged with the center recessed part 1a of a supporting board 1 like a pivot bearing and several to several ten lines 4 with a low reflection factor having contract with the ground are drawn on the side of the joint part 3 and the lines 4 are detected by an optical system detecting mechanism 5 built in the supporting board. Switches SWa6 to SWc8 respectively corresponding to coordinate input, contraction input and expansion input are arranged in the operation rod 2. Thus, multifunction can be obtained only by one operation rod.</p> |
