| 摘要 |
<p>A reverse arm 55 is pivoted by a driving pin 51 c of a reverse fork 51 inserted into a driven hole 55b thereof, and the reverse arm thereby moves an idle gear 50b in an axial direction, whereby the idle gear 50b is engaged with and disengaged from a driving gear 50a and a driven gear 50c of a reverse gear train 50. The outside diameter of the driving pin 51c is smaller than the width between opposed flat inner side surfaces of the driven hole of the reverse arm; thus, a gap is formed between the driving pin and the inner side surfaces. A jump-over mechanism JO is provided between the reverse arm and a transmission casing 10 for elastically urging the reverse arm outward away from a predetermined intermediate position within the pivoting range of the reverse arm and brings the driving pin in contact with one of the inner side surfaces of the driven hole. Thus, there can be provided a reverse shift device in a transmission in which the idle gear is moved in the axial direction and which is characterized in that the strength of the idle gear is ensured and that gear rattle does not arise.</p> |
