VEHICLE BODY FRAME STRUCTURE FOR SADDLE RIDE-TYPE FOUR-WHEEL RUNNING VEHICLE

摘要

PPROBLEM TO BE SOLVED: To provide a light and highly rigid vehicle body frame in a saddle ride-type four-wheel running vehicle. PSOLUTION: At least a pair of right and left upper frame members 41, a pair of right and left lower frame members 42, a front frame member 42 and a pair of right and left bracket members 44 connecting rear end parts of the upper frame members 41 and the lower frame members 42 with each other are formed of aluminum or alloy including aluminum. The bracket members 44 are die molded products by casting, forging or die casting etc., and swing arm support members 18 for rear wheels are provided in the bracket members 44. The pair of right and left bracket members 44 are connected with each other by cross members 45, 46 made of aluminum or alloy including aluminum. PCOPYRIGHT: (C)2007,JPO&INPIT