| 摘要 |
PURPOSE:To prevent tapping gear noise by pressing a weight which is mounted rotatably on a counter gear, to the side surface of said counter gear with a spring so as to add steady rotational force in a constant direction to said counter gear. CONSTITUTION:A counter gear 16 is provided with teeth 16a continuously engaged with an output gear 3 and teeth 16b engaged with a sliding gear 9. A gear 10 is spline-fitted on one side end of a counter gear 16 and said teeth 16b is formed by said gear 10. A weight 12 is mounted rotatably on said counter gear 16 and a friction plate 13 is disposed between one side surface of said weight 12 and the side surface of said gear 10 defining the side of said counter gear 16. A belleville spring 14 is also disposed rotatably between the other side surface of said weight 12 and the other side surface of said counter gear 16. |
