| 摘要 |
PURPOSE:To reduce the number of component parts item and make high rigidity securable as well as to relieve a degree of bending in a casing, by installing a gear case solidly in one side of a bearing case, piercedly supporting a rear axle, in a row. CONSTITUTION:A bearing case 11 supporting the central part of a rear axle 1 for a cross-country driving three-wheeled vehicle is provided in installing a gear case 12 solidly in one side of its cylindrical body in a row. In the gear case 12, a leading port 13 for a propeller shaft is opened to its front part, and its outer surface is largely opened, while the leading port 13 functions as a bearing hole supporting a front bearing 14 of a drive bevel gear 6, and a setting flange 15 to the rear end of a swing arm 3 is formed on the outer circumference of a front end. A driven bevel gear 7 engaging the bevel gear 6 is rotatably supported on the rear axle 2 inside the gear case 12, and a boss 20 behind the bevel gear 7 is projected into the inside of the bearing case 10. |
