Aisin Corporation

Toyota Jidosha Kabushiki Kaisha

Sou Okita

Yosuke Suzuki

A differential transmission apparatus including: a case that is rotatable around rotation axis that has shaft hole; pinion pin that extends parallel to rotation axis; pinion shaft that is supported by case, that has axial end portion passing through shaft hole of the case, and that bears rotation torque around rotation axis from case via axial end portion when axial end portion is in contact with peripheral wall portion of shaft hole in conjunction with a rotation around the rotation axis of the case; a pinion gear that is rotatably supported around the pinion shaft; and a side gear that meshes with the pinion gear, in which on an end surface in an axial direction of the pinion shaft, the pinion shaft has a groove portion that extends in an extending direction of the pinion pin, and in which the pinion pin is fitted into the groove portion.

Differential transmission apparatus

A first rotation shaft (which is provided with a first gear) is assembled to a first case member so as to provide a first assembly. A second rotation shaft (which is provided with a second gear) and a third rotation shaft (which is provided with a third gear) are assembled to a support member so as to provide a second assembly. When the second assembly is assembled to the first assembly, the second assembly is rotatable around a third axis from a first position where the first gear and the second gear are located away from each other to a second position where the first gear and the second gear are in mesh with each other, and is positioned at the second position by using a positioning member.

Growing community of inventors

Kariya, Japan

Sou Okita