| 摘要 |
PURPOSE:To improve the erectability and damper function by a method wherein an over-drive gear mechanism is held in a damper case and a contact segment slidably contacting with the inner circumferential surface of the damper case is provided in the final stepped gear. CONSTITUTION:Internal gears 2 are formed at the inner circumferential surface of the main body of the damper case 1 being made into an integral body and fitting parts 3 and 3 to a frame of machine such as videodeck or the like are also continuously connected with the damper case at its end being made into an integral body. The damper case is consisted of a cover 4 screwed into the main body of the case 1 at its rear opening and the main body of the case 1. The ove-drive gear mechanism consisted of sun gears 17-19 and the like is held in the damper case. The contact segment 25 slidably contacting with the inner circumferential surface of the damper case by protruding outwards due to the centrifugal force caused by the rotation of the gear is provided in the final stepped gear 19 of the over-drive gear mechanism. |
