| 摘要 |
An attachment system for attaching an implement to a tractor using two different size category attachment links/pins is provided. The system comprises two spaced attachment plates 18, 19. One attachment plate has a pair of spaced holes 23 of a smaller category size and the other has a pair of spaced holes 22 of a larger category size. The centre lines 22a, 23a of the two pairs of holes are aligned. A pair of spaced pins are included, the pins being interconnected at one end with their centre lines spaced apart by the same distance as the pairs of holes in the attachment plates. The interconnected ends of the pins have a diameter for use in the pair of holes of the larger size category and the free ends of the pins have a diameter for use in the smaller size category holes. Furthermore, one pin has an intermediate portion (29, fig. 3) between the connected end and the free end which is of the larger size category. The other pin has an intermediate portion which is of the smaller size category. The pin means are alternatively insertable through the larger size category holes in the attachment plates with the larger or smaller size category intermediate portion in either position between the attachment plates so that the connecting links of both size categories can be secured between the attachment plates in either position. The system allows implements to be attached to a tractor using an upper link of at least two different size categories. |
