Patent ID: 6502658
Filing Date: 2003-01-07
Classification: B62K,B62M

Abstract:
An engine supporting structure for a motorcycle, the motorcycle including an engine, a body frame, a rear swing arm for rotatably supporting a rear wheel, and a chain transmission for transmitting power of said engine to said rear wheel, the chain transmission being disposed on either the right or left side of said engine, said engine supporting structure comprising:a boss portion provided on an upper portion of the engine; a pair of hanger portions provided on right and left sides of the body frame of the motorcycle, respectively, and projecting downwardly therefrom, said boss portion being interposed between said pair of hanger portions and being supported by a through-bolt inserted through said pair of hanger portions and said boss portion, one of said hanger portions is located on a side opposed to a side on which the chain transmission is disposed with respect to a center line of the motorcycle, said one hanger portion having an insertion hole for receiving an enlarged diameter head on one end side of said through-bolt, and a slit portion continuous to an inner surface of said insertion hole and opened downwardly; and a fastening bolt screwed in said one hanger portion for narrowing said slit portion to reduce a diameter of said insertion hole, wherein said fastening bolt is screwed in said one hanger portion after said through-bolt has been inserted through said pair of hanger portions and said boss portion after an axial position of said through-bolt relative to said boss portion has been adjusted.