| 摘要 |
PURPOSE: To provide the telephone set improved in power generating efficiency and made lightweight by pushing a push rod into the body of the title set to drive a gear meshing with a rack gear of the push rod and delivering the drive to a gear on the same shaft as that of a generator via another gear. CONSTITUTION: When a release button 4 is depressed, a lock piece 4A pressing a spring 18 is set aside and a push rod 3 is pushed upward by a spring 6. When the push rod 3 is set downward and pushed onto a desk or the like in a direction of the arrow V1, a 1st gear 10 meshes with a rack gear 3A engraved to the push rod 3 and is driven in a direction of the arrow V2. A 2nd gear 11 on the same shaft as the gear 10 is driven to act on a 3rd gear 12 and the gear 12 is moved in a long hole bearing 15 and reaches a position of a shaft 12A. As a result, a torque of the gear 10 is delivered to the gear 12 via the gear 11, which is driven in the direction of the arrow V3. The torque is delivered to a 4th gear 13. On the other hand, the pushed push rod 3 is pushed out in a direction of the arrow W1 by a force of the spring 6 when the hand is released. |
