| 摘要 |
<p>PROBLEM TO BE SOLVED: To overcome the problem of a prior art such that it is impossible to give any sense of click to a user when the scroll speed of a pointer is increased unless an operation stick is inclined to a specific direction in which a turbo switch is arranged. SOLUTION: When a user inclines an operation stick 120 to his desired direction only by prescribed quantity, the peripheral edge of a pressurizing member 124 is butted to the peripheral edge of a through-hole 113a, and the peripheral edge of the through-hole 113a is deformed on a spring board 113 in the timing of the transition of a normal mode to a high speed mode so that a biasing force can be added from the spring board 113 to the operation stick 120, and that a sense of click can be transmitted to a grip 120a. Therefore, the user can be given the sense of click regardless of the tilt direction of the operation stock, and the moving speed of the pointer can be increased.</p> |
