| 摘要 |
PURPOSE:To make form working machinery drawable on the center line of a machine body, by supporting the front end of a link supporting a draw bar pivotally with a pin which pivotally supports each front end of lower links at both sides to the tractor side, in case of an offset type tractor. CONSTITUTION:A draw bar 23, opening each farm working machinery setting pin hole at top and bottom, is tightly installed in each rear end of two draw bar links 25L and 25R. And, these draw bar links 25L and 25R are constituted into a forked form opening their front ends which are fitted in a lower link 18L. In addition, a fixed stay 24 is pivotally attached upward to the draw bar 23 and projected to some extent, and an upper end of this fixed stay 24 is fitted in a pin 27 pivotally attaching a top link 1 of a top link hinge 15. Furthermore, two insertion holes 24a and 24b of the pin 27 in the fixed stay 24 are opened, and in case of the hole 24a, it is set to drawable position by the draw bar 23, and in case of the hole 24b, the draw bar 23 is disused and this hole is set to a releasing position. |
