US 12,467,527 B2
Drive device
Masataka Iwamoto, Toyota (JP); Koichi Okuda, Toyota (JP); and Atsushi Tabata, Okazaki (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Feb. 20, 2024, as Appl. No. 18/581,693.
Claims priority of application No. 2023-096110 (JP), filed on Jun. 12, 2023.
Prior Publication US 2024/0410464 A1, Dec. 12, 2024
Int. Cl. F16H 57/04 (2010.01)
CPC F16H 57/0426 (2013.01) [F16H 57/043 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A drive device for a vehicle, the drive device comprising:
a first motor;
a first rotational shaft that integrally rotates with a rotor of the first motor;
a first counter shaft that is disposed parallel to the first rotational shaft and that is also connected to the first rotational shaft via a first counter gear;
a first transmission shaft that is disposed coaxially with the first rotational shaft and that is also connected to the first counter shaft via a second counter gear; and
a counter gear chamber, wherein;
a first oil channel that is a series of oil channels fashioned within the first rotational shaft and the first transmission shaft;
the counter gear chamber houses a part of the first rotational shaft, the first transmission shaft, the first counter gear, the second counter gear, and the first counter shaft;
the first rotational shaft includes a first oil hole in the part housed within the counter gear chamber, the first oil hole extending from the first oil channel to an outer peripheral surface of the first rotational shaft;
the first oil hole is provided closer to the first counter gear than to the second counter gear in an axial direction of the first rotation shaft;
the first transmission shaft includes a second oil hole extending from the first oil channel to an outer peripheral surface of the first transmission shaft;
the second oil hole is provided in the first transmission shaft at a position between the first counter gear and the second counter gear; and
the first oil hole and the second oil hole open toward the counter gear chamber.