Oil accumulation portion in a cover member of a drive device

A device comprising:

• a motor;
• a gear device disposed on one side of the motor and including a first lubricated member;
• an oil accumulation portion provided in a cover member on the other side of the motor;
• a second lubricated member provided in the oil accumulation portion in an insertion hole of the cover member;
• and
• a communication passage configured to allow a gear device side to communicate with the oil accumulation portion, wherein
• the communication passage is provided above respective lowest points on a lower side in a gravity direction of lubrication target locations of the first lubricated member and the second lubricated member,
• the oil accumulation portion includes, in a concave portion provided in the cover member, an enlarged portion in which an upper side in the gravity direction is thicker than a lower side in an axial direction,
• the lowest point of the second lubricated member is provided at a position overlapping with the concave portion when viewed from a radial direction, and
• the concave portion is located on an outer peripheral side of the insertion hole.