Patent ID: 8833204
Filing Date: 2014-09-16
Classification: F16H,Y10T

Abstract:
1. A reverse idler shaft supporting structure of a transmission, comprising: a transmission case; a reverse idler gear made up of a helical gear; and a reverse idler shaft that rotatably supports the reverse idler gear, wherein with the reverse idler gear being disposed in the vicinity of an end wall disposed in an axial end portion of the transmission case, one axial end portion of the reverse idler shaft is inserted into a support hole formed in the end wall so as to be supported on the transmission case, and on the other hand, another axial end portion of the reverse idler shaft is inserted into a support hole formed on a support bracket, and is supported on the transmission by the support bracket being fastened to the end wall with a bolt, the reverse idler shaft supporting structure of a transmission being characterized in that: a case-side support portion is formed in the end wall, the case-side support portion extending to the vicinity of the other axial end portion of the reverse idler shaft along the reverse idler shaft; an arm portion is formed in the support bracket, the arm portion extending to the case-side support portion from the periphery of the support hole which is formed on the support bracket; a curved surface portion which takes on a circular arc shape centering on a shaft center of the reverse idler shaft and is joined with one another is formed on the case-side support portion and the arm portion, respectively; and the bolt is disposed such that the central axis thereof passes through the curved surface and is oriented toward the shaft center of the reverse idler shaft.