Electric motor mounting structure

An electric motor mounting structure for mounting an electric motor for driving a wheel on a vehicle body formed by combining a plurality of frame members, wherein:

• the frame members include a pair of side members extending in a fore and aft direction on either side, a first cross member extending laterally and joined to the side members, and a second cross member extending laterally behind the first cross member;
• the electric motor is provided with a rotary shaft extending laterally and located between the first cross member and the second cross member with respect to the fore and aft direction;
• a front part of the electric motor is joined to a pair of motor stay members that extend forward while diverging away from each other laterally, and a front end of each motor stay member is supported by the first cross member via a first mount member;
• a rear part of the electric motor is supported by the second cross member via a second mount member;
• the first mount member includes a first outer tube member partly received by a receiving hole provided to the first cross member, a first fastening portion projecting from an outer surface of the first outer tube member and fastened to the first cross member at a part thereof outside of the receiving hole by a first threaded bolt, and a first inner tube member retained inside the first outer tube member via a rubber member and joined to the motor stay member;
• and
• a collar for receiving and supporting the first threaded bolt is joined to the first cross member.