| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it possible to operate a lock knob with a light force in an off state of a motor. SOLUTION: A reciprocal rotation of a DC motor 23 is transmitted to an output rod by way of a worm wheel 27 and a plane gear 31. This output rod 36 and a lock knob are interlocked with a rod. The worm wheel 27 is connected to the plane gear 31 with a spiral spring 29. When a car switch is in an off state, if the lock knob is operated, the output rod 36 will rock with the rod. To absorb this rocking motion by way of a slight spiral fastening motion of the spiral spring 29 or a rewinding motion, the lock knob can be operated with a smaller force compared with a force required for turning the worm wheel 27 and the DC motor 23.</p> |
