专利汇可以提供Method for removing roots from cormous plant bodies专利检索,专利查询,专利分析的服务。并且A method for mechanically removing roots (4) from harvested cormatose plant bodies using a special root removing arrangement, which comprises supplying the harvested cormatose plant body in between two parallely laid rollers (1, 2) while they are rotating in the same rotational sense or in such a counter sense to each other that their inwards opposing inner sides are moving upwards, in order to let the plant body (3) roll on the rollers (1, 2) and take its balanced, substantially axially of the rollers (1, 2) directed posture, changing over the rotational mode of the rollers (1, 2) into a rotation mode of such a counter sense to each other that their inwards opposing inner sides are moving downwards, in order to draw the beard-like roots (4) of the plant body (3) into the roller gap held at a suitable spacing, forcing the plant body aside from the rollers (1, 2) by means of a plant body thrusting mechanism so as to cause the roots to be plucked from the plant body (3) and discharging the so disrooted plant body out of the root removing arrangement, which method permits to realize automatic mechanical works for removing beard-like roots from harvested cormatose plant body and attains high labor performance at an economization of energy while relieving from danger of injury and permitting realization of aseptic operations.,下面是Method for removing roots from cormous plant bodies专利的具体信息内容。
The present invention relates to a method for removing roots from bulbous or cormatose plants, in particular, by means of mechanical work.
Hertofore, a farm work of root-removal or disrooting of cormatose plants had been realized, in general, by hand work of farm laborers by handing the plant body or placing it on a chopping board one by one and cutting off the roots using a knife etc.
Upon the remarkable progress in the biotechnology in recent years, an intense expectation has arisen for realizing an industrial agriculture which allows a considerable increase in the harvest amount while spending man-labor. For such industrial agriculture, mechanization of various farm works is necessary and, in addition, aseptic operations should, in most cases, be incorporated in order to eliminate infections during planting and cultivating on, such as, an agar culture medium which may probably be employed in such industrial agriculture.
In harvesting cormatose plants, such as, lily, fritillary and so on, removal of beard-like roots (disrooting) from the collected plant bodies is one of important harvesting works. Hitherto, such works of disrroting have not been succeeded to mechnize and were realized exclusively by hand work of farm laborers spending extensive time at a low labor efficiency with accopaniment of considerable danger of unjury due to handling of knife etc. Furthermore, there is a high probability of transference of phytopathogenic bactria from the laborers' body to the plant, if a laborers' work has to be interposed in such mechanized works for disrooting, what has been a large obstacle for such mechnization.
An object of the present invention is to obviate the difficulties mentioned above and to propose a mechanical method for removing roots from cormatose plant bodies which offers high work performance and relieves danger of injury of laborer and permits to prevent trandfer of phytopathogenic bactria from the laborer to the plant.
Thus, by the present invention, a method for mechanical removal of beard-like roots from harvested cormatose plant bodies under employment of a special root removing arrangement is proposed, which comprises supplying the harvested cormatose plant body in between two parallely laid rollers while they are rotating in the same rotational sense or in such a counter sense to each other that their inwards opposing inner sides are moving upwards, in order to let the plant body roll on the rollers and take its balanced, substantially axially of the rollers directed posture, changing over the rotation mode of the rollers into a rotation mode of such a counter sense to each other that their inwards opposing inner sides are moving downwards, in order to draw the beard-like roots of the plant body into the roller gap held at a suitable spacing, forcing the plant body aside from the rollers by means of a plant body thrusting mechanism so as to cause the roots to be plucked from the plant body and discharging the so disrooted plant body out of the root removing arrangement.
In case that, in the root removal method according to the present invntion, the rotational sense of the two parall rollers laid so as to leave a small gap between them is the same or, when they are rotating in such a counter sense to each other that their inwards opposing inner sides are moving upwards, plant body of a cormatose plant placed on the rollers in the intersticial portion of them will roll thereon and soon takes a balanced or stable posture with their plant stem or plant axis extending in the axial direction of the rollers. By changing over the rotational mode of the two rollers from this state into a root-involution mode in which they are held in such a counter-wise rotation to each other that said inwards opposing inner sides of the rollers are moving downwards, the beard-like roots of the plant body will be rolled into the roller gap, namely, the gap between the rollers, and subject to towing by the frictin force on the rotating rollers. If, in this occasion, the plant body is pushed aside, i.e. in axial direction of the rollers by means of a plant body thrusting mechanism, the beard-like roots which have been rolled into the roller gap will now be plucked off from the plant body held retained on the parallel rollers and the so disrooted plant bodies will fall down into, such as a collector bunker outside the root removing arrangement.
Since the plant body, i.e. the stem and the bulb, is sufficiently larger than the beard-like roots, it will, at a quite high probability, be retained on the rollers without being drawn into the gap between the rollers. By constructing the roller pair asymmetrically so that one has a larger diameter than the other, possibility of rolling small size plant bodies into the roller gap can far more be decreased.
If the diameters of the rollers are excessively large with respect to the size of the plant body, the possibility of rolling the plant bodies into the roller gap becomes intolerably high. Such a danger can be avoided by selecting the diameters of the rollers within a suitable range and determining the ratio of the two asymmetrical roller diameters at an adequate value, since the diameter of the plant body is quite larger than that of the beard-like root.
Below, the invention shall be described concretely by way of an Example of root removal of a bulbous lily.
A root removing arrangement employed in this Example is illustrated in Figs. 1 to 3, in which a plant body of a bulbous lily havingbeard-like roots is supplied on a pair of rollers 1 and 2. These rollers 1 and 2 are rotatably disposed parallel to each other leaving a rollergap of an adequate spacing therebetween and are each lined by a coating of hard rubber.
In the first operation step of the arrangement, the roller pair is run in a parallel rotation mode, namely, in rotation in the same sense as shown in Fig. 3 by the arrows A. The plant body 3 to be subjected to root removal is supplied in this state onto the pair of rollers in their intersticial portion. The plant body 3 rolls between the two rollers 1 and 2 and soon takes its balanced or stable posture with its plant axis extending in the axial direction of the rollers, even though it is supplied in any voluntary posture onto the roller pair. Here, it brings about the same result, whether the rollers are rotated in clockweise or in counterclockweise sense.
After the stable posture of the plant body 3 has been reached, the rotation of one of the rollers 1 and 2 is inverted in the second operation step of the arrangement, so as to realize such a counterweise rotation that the internally opposing sides of the pair of rollers 1 and 2 are moving both downwards, as shown in Fig. 4 by the arrows B. By this operation of the rollers, the flexible beard-like roots 4 are involved into the roller gap by the friction force on the rollers, while the bulb or corm and the stem of the plant are held retained on the rollers 1 and 2 since they are large enough to withstand such involution force.
Then, a plant body thrusting mechanism in a form of, for example, an axially slidable piston 5 and a cylinder 7 therefor as shown in Fig. 1 is actuated in the third operation step, so as to push the plant body foreward by a sweeper plate 6 arranged at the top of the piston 5. This operation causes the beard-like roots involved in between the two rollers to be plucked from the bulb 3 and the thus disrooted plant body is swept off from the rollers into a suitable collector means outside the root removing arrangement.
While the Example herein suggests use of rollers coated by hard rubber in order to provide enough friction to be imparted to beard-like roots of larger thickness, it is feasible to select an adequate material so as to meet each specific requirment on application taking into account of the strength, flexibility, hardness and so on of the roots to be removed. The roller diameter should be determined suitably for plants to be treated, as suggested previously, to adapt to their size, hardness flexibility and so on, together with the suitable adjustment of distance or spacing of the roller gap, rotation speed of the rollers, diameter ratio of the two rollers of asymmetrical diameters if incorporated and so on.
The plant body thrusting mechanism can be realized by any other suitable means and can be actuated by, such as, electric motor or the like.
According to the novel method of the present invention, it is now possible, as illustrated in the Example, to mechanize works for root removal for various cormatose plants that were heretofor carried out only by hand work of farm laborer. Thus, it offers high work efficiency with economization of energy and improvement of safety secure against injury accident, in addition to permission of complete aseptic operation. Therefore, the present invention can be applied advantageously not only to conventional agricultural works but also to industrial agriculture operating with large amount of plant bodies and even to "plant factory" in the future.
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