| 摘要 |
<p>The yieldable plough body mounting for a reversible plough has an arm (1) carrying a plough body (11) in a position of use. It is pivotally connected (42) by a connecting rod (40) to a support (2,20) mounted on the plough beam (3). The forward end of the arm has pivotal ball contact (16,26) with the support at points adjacent the pivotal connection (42). Pivotal angular movement of the arm takes place for upward yielding of the arm against the action of resiliently acting return springs acting between the arm and a rear part (43) of the connecting rod. The connecting rod has an intermediate pivot joint (45) to permit further upward pivotal angular movement of the arm at reduced or virtually no resilient loading.</p> |
