| 摘要 |
PURPOSE:To expand and contract a rear car body where occasion demands and to enable transportation of lumbers in a complete loading condition, by a method wherein the frame on the coupling side and the frame on the moving side of a rear car body are slidably intercoupled in a telescopic manner. CONSTITUTION:A rear car body 3 comprises a frame 3a on the coupling side for a front car body 2 and a frame 3b on the moving side which is longitudinally telescopically slidably coupled to the frame 3a. A rotary base seat 12 is secured to the frame 3b on the moving side, and a cramb bank device 13 is horizontaly rotatably mounted to the base seat 12. When the frames 3a and 3b are brought into a condition in which they are superposed with each other, and lumber is tightened against the cramb bank device 13, a tructor can carry the lumber as it drags the lumber like a conventional tractor of this type. Further, by bringing the frames 3a and 3b into an expansion condition and tightening the lumber against the cramb bank device 13, the lumber can be carried in a complete loading condition. |
