Patent attributes
A first annular frame is formed on the bottom surface of an engine cover. A mount rubber of columnar shape is inserted into the first annular frame. Projections of the mount rubber are fitted into holes of the first annular frame. A through hole is formed in the mount rubber. An engagement projection is formed on the inner surface of the through hole. An adapter has a small-diameter part formed in the vicinity of the top end and a predetermined distance away from the top end toward the root thereof. The adapter has a flange formed below the smaller-diameter part. The top end part of the adapter is inserted into the through hole of the mount rubber to fit the engagement projection into the small-diameter part and bring the flange into abutment on the bottom surface of the mount rubber.