| 摘要 |
PURPOSE:To improve the riding comfortableness of a car by connecting the rods of a hydraulic cylinder to a cabin by means of a long hole and a pin such that they are capable of idly moving with respect to the cabin and by permitting the pin to return to the intermediate position of the long hole when the dropping of the cabin is completed. CONSTITUTION:A connecting pin 20 provided on he tip of the piston rod 19 of a hydraulic cylinder 16 mounted, via a pin 18, on a bracket 17 fixed to a chassis frame 1 is fitted in a long hole 22 formed on a connecting bracket 21 on the cabin 4 side, and the rod 19 is connected to the cabinet 4. Moreover, on the upper part of the cylinder 16, a spring case 23 slidably provided on the outer peripheral part of said cylinder is provided, a compression spring 24 is arranged inside said cylinder, and the stopper 25 of a case 23 and the stopper 26 of the rod 19 are provided. When the force for pulling the rod 19 downward disappears at the time of completion of descent of the cabin 4, the rod 19 is returned by the spring 24 to a position where the rod makes contact with a cap 37, and the pin 20 is shifted to the central position of the long hole 22, so that the cabin 4 can move vertically and relatively with respect to the chassis 1. |
