| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a drag link controller having simplified construction and mounting. SOLUTION: A bell crank 57 is fitted to the protrusion of an upper spindle 56 from the lower surface of a frame 55 so as to be slidable around a vertical oscillating axis 43 while a flange 90 prevents the bell crank from dropping out, and oscillates with steering operation. A hydraulic cylinder 60 is formed so that a cylinder 61 may be fixed to the lower side of the bell crank 57 and a piston rod 62 may be displaced. A support bracket 74 is fixed to a frame 55 on the upper end thereof, and avoids interference with the hydraulic cylinder 60 to be suspended. A lower spindle 76 aligns a center line on the oscillating axis 43, is fixed to the lower side of the support bracket 74, and fitted into the fitting hole 71 in an overhang part 68 integrated with the cylinder 61. A front drag link 37 and a rear drag link 38 are rotatably-connected to the bell crank 57 and a small diameter hole 63 in the piston rod 62 respectively. The connecting point of the rear drag link 38 is displaced in a range including the oscillating axis 43.</p> |
