Patent ID: 9222570
Filing Date: 2015-12-29
Classification: B60K,F16H,Y10T

Abstract:
1. A power transmission apparatus comprising: a case; a first rotary shaft extending in a first axial direction; a second rotary shaft extending in a second axial direction intersecting with the first axial direction; a first gear provided on the first rotary shaft; a second gear provided on the second rotary shaft and meshing with the first gear; a first bearing and a second bearing that rotatably support the first rotary shaft with respect to the case; and a third bearing and a fourth bearing that rotatably support the second rotary shaft, wherein the third bearing is positioned between the second gear and the fourth bearing in the second axial direction; wherein the case includes a first case member and a second case member, wherein the first case member and the second case member are respectively formed with mating surfaces both intersecting with the first axial direction; wherein the mating surface of the first case member and the mating surface of the second case member are joined to each other; wherein the first case member accommodates one side of the first rotary shaft in the first axial direction, the first bearing, the second rotary shaft, the third bearing, and the fourth bearing, wherein the second case member accommodates the other side of the first rotary shaft in the first axial direction, and the second bearing, wherein the mating surfaces are disposed between the first bearing and the second bearing in the first axial direction, wherein the mating surfaces are disposed on a side of an entirety of the second bearing in the first axial direction in which the first bearing is disposed, wherein the first case member is formed with a hole penetrating a part of the mating surface of the first case member at a side of the second rotary shaft, wherein an entirety of the hole is disposed on a side of the third bearing in the second axial direction in which the fourth bearing is disposed, wherein a fastener penetrating through the mating surfaces of the first case member and the second case member is inserted through the hole, wherein the fourth bearing is supported in a bearing support part formed in the first case member, wherein, in a third direction perpendicular to both of the first axial direction and the second axial direction, a whole of said hole is positioned on one side of an inner peripheral end of the bearing support part.