| 摘要 |
PURPOSE:To prevent rolling by providing a cylinder between arms connected to each of suspensions, by making a piston connected to each of the arms divide a head side chamber from a rod side chamber, respectively, by making the head side chambers communicate to the rod side chambers, and by providing a spool valve at each of the pistons. CONSTITUTION:When, for example, a front left wheel 5 bumps with a small amplitude, a piston 25 on the left hand side is screwed to the left by a screw part 17a so as to raise pressure in a rod side chamber 30. In this case, as differential pressure between a head side chamber 29 and the rod side chamber 30 is less than a predetermined value for operating a spool valve 36, the valve 36 is not blocked, but fluid is flown from the rod side chamber 30 to the head side chamber 29, and the piston 25 is freely moved. When, however, the amplitude is large, the valve 36 is closed and movement of the piston 25 is locked. When right and left wheels bump in phase, fluid in right and left cylinder chambers 22 and 23 communicates to each other in passages 33 and 34, and the piston 25 and 27 are freely moved. |
