Transmission device

A transmission device comprising:

• a transmission mechanism;
• and
• a gear case that accommodates the transmission mechanism, wherein
• the transmission mechanism includes
• an input gear,
• a counter gear having a rotation axis parallel to a rotation axis of the input gear,
• a ring gear having a rotation axis parallel to the rotation axis of the input gear,
• a differential case fixed to the ring gear,
• a differential mechanism disposed inside the differential case,
• an input gear bearing rotatably supporting the input gear,
• a counter gear bearing rotatably supporting the counter gear, and
• a differential case bearing rotatably supporting the differential case, wherein
• the counter gear includes
• a first gear that meshes with the input gear, and
• a second gear that has an outer diameter smaller than an outer diameter of the first gear, is disposed concentrically with the first gear, and meshes with the ring gear, wherein
• the rotation axis of the counter gear is located above the rotation axis of the input gear and the rotation axis of the ring gear, wherein
• the gear case includes
• a catch tank disposed at a position overlapping the input gear from above,
• a guide that sends oil scraped up by the ring gear to the catch tank,
• an input gear flow path that sends oil in the catch tank to the input gear bearing, and
• a first counter gear flow path that sends the oil in the catch tank to the counter gear bearing, wherein
• at least part of the guide overlaps the first gear when viewed in an axial direction of the counter gear, and wherein
• an uppermost point of the first gear does not face a rib in a radial direction of the counter gear, the rib protruding from an inner face of the gear case in the axial direction of the counter gear.