Improvements in or relating to agricultural machinery
| 专利类型 | 发明专利 | 法律事件 | |
| 专利有效性 | 未知 | 当前状态 | |
| 申请号 | GB3426546 | 申请日 | 1946-11-19 |
| 公开(公告)号 | GB618723A | 公开(公告)日 | 1949-02-25 |
| 申请人 | ISRAEL POMIERANIEC; TRANSPLANTERS ROBOT LTD; | 申请人类型 | 其他 |
| 发明人 | 第一发明人 | ||
| 权利人 | ISRAEL POMIERANIEC,TRANSPLANTERS ROBOT LTD | 权利人类型 | 其他 |
| 当前权利人 | ISRAEL POMIERANIEC,TRANSPLANTERS ROBOT LTD | 当前权利人类型 | 其他 |
| 省份 | 当前专利权人所在省份： | 城市 | 当前专利权人所在城市： |
| 具体地址 | 当前专利权人所在详细地址： | 邮编 | 当前专利权人邮编： |
| 主IPC国际分类 | A01B63/08 | 所有IPC国际分类 | A01B63/08 ; A01B63/28 |
| 专利引用数量 | 0 | 专利被引用数量 | 0 |
| 专利权利要求数量 | 0 | 专利文献类型 | A |
| 专利代理机构 | 专利代理人 | ||
| 摘要 | 618,723. Agricultural implements. POMIERANIEC, I., and TRANSPLANTERS (ROBOT). Ltd. Nov. 19, 1946, No. 34265. [Class 6 (i)] A wheel-operated toollifting device, provided on an agricultural implement, can be actuated by an operator so that the lifting mechanism can be driven in either direction, to raise or lower the tools, during the forward travel of the implement. In the form shown, a tool frame 4 carrying a plough 5 is pivoted about the axle of the land wheels 1 of a main frame 2 and is provided with a forwardly-extending lever 6 which is pivoted to the angle of a bell-crank lever 7a, 7c. One arm 7a of the bell-crank is pivoted to a link 8 attached to a rack element 9 which is pivoted at 12 to a crank 11. The rack element 9 is sector shaped and includes two sets of rack teeth, one set or the other being engageable with a pinion 13 driven by the land wheels. A third arm 7b, provided on the bellcrank, carries at its upper end a head slidable between springs 16, 17 on a rod 15 attached at one end to the crank. The crank 11 is also pivotally mounted and its upper end is held against a manually-operable latch 18. In Fig. 1 the tool is shown being raised by the interaction of the pinion 13 and the lower rack. As the pinion reaches the end of the rack the lever system 6, 7, passes through a dead-centre position and becomes locked in the angle of the lever 8 (Fig. 3). At the same time the head 14 slides along the rod 15 and compresses the spring 17. On releasing the latch 18, the rack element pivots under the action of the spring 17 and the pinion engages the upper rack. During lowering of the tool the head 14 compresses the other spring 16 so that the next release of the latch will result in engagement between the pinion and lower rack (Fig. 1). The device may be applied to all types of land-engaging implements (e.g. planting machines). | ||
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