Patent ID: 7353733
Filing Date: 2008-04-08
Classification: F16H,Y10T

Abstract:
1. A transmission apparatus for an automobile comprising: a transmission gear mechanism including, therein, a speed-reducing small gear at an axial one side of an intermediate shaft; a final driving mechanism including, therein, a speed-reducing large gear at an axial one side of an axle, the speed-reducing large gear being engaged with the speed-reducing small gear; a casing including: a second inner surface facing, at a distance away, an end surface of the speed-reducing small gear positioned at a side of the first chamber housing, therein, the transmission gear mechanism; and a case rib formed at the second inner surface, and projecting toward the first inner surface along undersides of the speed-reducing small gear, and of the speed-reducing large gear that meshes with the speed-reducing small gear, the case rib being connected to a bottom surface of the casing; and a wall which, viewed from a direction perpendicular to an axial direction of the speed-reducing large gear, is positioned between the first inner surface and the end surface of the speed-reducing large gear that faces the first inner surface; the wall including: a lower portion fixedly attached to a tip end surface of the case rib; and an edge portion arranged at a side of the final driving mechanism and elastically in contact with the first inner surface; and the wall covering, at a distance away, the end surface of the speed-reducing large gear that faces the first inner surface.