| 摘要 |
PROBLEM TO BE SOLVED: To make the maximum height of a chassis frame as low as possible so as to improve transport efficiency by arranging a main leaf spring below an axle, and arranging an auxiliary leaf spring above the axle. SOLUTION: A main leaf spring 20 is arranged on the lower side near both ends in the cross direction of a rear axle 14, and an auxiliary leaf spring 22 is arranged on the upper side. Both leaf springs 20, 22 are tightly fastened to the rear axle 14 by U-bolts 42. Front end spring eye part of the main leaf spring 20 is pivotally fixed to a front spring bracket 26 by a pivotally fastening pin 24. and the rear end spring eye part of the main leaf spring 20 is pivotally supported to a rear spring bracket 34 through shackle pins 28. 30 and a shackle link 32. The front and rear end parts of the auxiliary leaf spring 20 come in contact with front and rear helper stoppers 38, 40 to bear load when the spring load is the set value or more. As a result, the ground clearance of a chassis frame is low while being able to bear large load. |
