JP2007236339A - Seedling rolling auxiliary device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems: such that the leaf portions of mat seedlings can well not be lodged with a lodging means on the rolling side in a seedling rolling auxiliary device, when the conditions of the seedlings, such as the thicknesses or lengths of the leaves of the mat seedlings or the strength of a seedling bed portion, are different; such that a roll seedling is occasionally formed in such a state that the leaf portions of the mat seedling are largely protruded on the outside; and such that the plantation of the seedlings with a seedling transplanter is troubled. <P>SOLUTION: This seedling rolling auxiliary device is characterized by having a lodging means for acting on the leaf portions of the mat seedlings to lodge the leaf portions on a rolling side, when the mat seedlings are rolled, and a position-changing means for changing the mat seedling leaf portion-acting vertical position of the lodging means. The seedling rolling auxiliary device, wherein a guide means for inward guiding the leaf portions of the right and left outside portions of the mat seedlings, when the mat seedlings are rolled. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention belongs to the technical field of a seedling winding assist device that can be used when winding a mat seedling into a roll.

Roll seedlings formed by winding long mat seedlings into a roll shape are loaded into the roll seedling supply unit, and the mat seedlings are sequentially planted from the outer peripheral side of the roll seedlings loaded in the roll seedling supply unit. There is a seedling transplanter that is transferred to the side, and the planting device takes one seedling from the mat seedling and plantes it in the field. This seedling transplanter can load a roll seedling consisting of a long mat seedling into the roll seedling supply unit, so that a large amount of seedlings can be loaded at a time, so the number of seedling replenishment can be reduced, and consequently seedling replenishment The labor can be saved and the planting efficiency can be improved. In this seedling transplanter, the seedling of the mat seedling transferred to the planting device side is directed to the opposite side of the planting device, and the planting device can take out the seedling of one stock without damaging the leaf portion. It is necessary to do so. Therefore, when traveling on the mat seedling, when the mat seedling is rolled up, it acts on the leaf portion of the mat seedling before winding, and the lodging means is constituted by a belt that causes the leaf portion to fall on the winding side. There is a seedling winding assist device provided with (see Patent Document 1).
JP 2002-233218 A

  In the seedling winding assist device, seedling conditions such as the thickness or length of the mat seedling leaf or the strength of the seedbed portion are different due to differences in various environmental conditions during seedling raising. If the conditions of the seedlings are different, there is a risk that the leaves of the mat seedlings cannot be satisfactorily laid down to the winding side by the lodging means, and in some cases the rolls with the leaves of the mat seedlings protruding greatly outside There is a risk that seedlings may be formed, which in turn may hinder the seedling planting by the seedling transplanter.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the invention of claim 1 is characterized in that when the mat seedling is wound in a roll shape, the lodging means acts on the leaf portion of the mat seedling before being wound, and the leaf portion falls on the winding side. A seedling winding assist device provided with position changing means for changing the vertical position acting on the leaf portion of the mat seedling was provided. Therefore, depending on the difference in seedling conditions such as the thickness or length of the leaves of the mat seedling or the strength of the seedbed due to the difference in various environmental conditions during seedling raising, the lodging means may change the leaves of the mat seedling by the position changing means. By changing the position acting on the part, the fall action state of the leaf part by the fall means can be changed and adjusted as desired, and the mat seedling can be wound up in a roll shape in that state.

  The invention of claim 2 is characterized in that the seedling roll according to claim 1 is provided with guiding means for guiding the leaf portions of the left and right outer sides of the mat seedling before winding the mat seedling in a roll shape. It was set as a collecting assist device. Therefore, in addition to the action of the seedling winding assist device according to claim 1, the leaf portion of the outer side of the mat seedling is guided inward by the guiding means, and the mat seedling can be wound in a roll shape in that state. it can.

  According to the seedling winding assist device according to claim 1, since the lodging action state of the leaf portion of the mat seedling can be changed and adjusted as desired, a roll seedling can be appropriately formed without damaging the seedling and with a desired outer diameter. As a result, seedlings can be properly planted by a seedling transplanter.

  According to the seedling winding assist device according to claim 2, in addition to the effect of the seedling winding assist device according to claim 1, the leaf portion of the outer side of the mat seedling is guided inward by the guiding means. With the lodging action of the lodging means, it can be prevented that the leaves of the mat seedlings protrude greatly outside, and the roll seedlings can be properly formed without protruding the leaves, and by the seedling transplanter Seedlings can be properly planted.

An embodiment of the present invention will be described below.
The seedling winding assisting device 1 moves the leaves of the mat seedling 3 while moving it on the mat mat 3 having a length of about 6 m, which is grown in the seedling tray 2 having a certain width (about 30 cm) and long in the vertical direction. And the mat seedling 3 on the seedling tray 2 on the rear side of the seedling winding assisting device 1 is wound around the outer periphery of the pipe-shaped winding shaft 4 and wound up. It has become. The mat seedling 3 is wound around the winding shaft 4 while manually rotating the winding shaft 4 along the seedling tray 2. A pair of left and right traveling wheels 5 serving as traveling means are provided before and after the seedling winding assist device 1, and the power from the drive motor 6 serving as the prime mover travels in the left and right front and rear via the left and right traveling transmission chain 7. The seedling winding assisting device 1 travels while the traveling wheels 5 are guided by the driving of the total four traveling wheels 5 by using the walls 2a on the left and right sides of the seedling tray 2 as rails. The drive motor 6 and a battery 8 serving as a power source for the drive motor 6 are arranged on the upper part of the seedling winding assist device 1. In addition, before and after the upper part of the seedling winding assist device 1, a grip portion 9 for carrying the seedling winding assist device 1 is provided. A speed adjustment operation tool 10 is provided on the upper upper surface side of the seedling winding assist device 1, and the operation speed can be adjusted by changing the drive speed of the drive motor 6 by operating the speed adjustment operation tool 10. It has become. The speed adjusting operation tool 10 also serves as a power switch for turning on / off the driving motor 6.

  At the rear part of the seedling winding assist device 1, left and right arms 12 that can be turned up and down are provided around a turning shaft 11 in the left and right direction. The rotating shaft 11 is disposed at a substantially central position of the arm 12 extending obliquely downward. Between the left and right arms 12, a moving roller 14 for winding a seedling fall belt 13 constituted by a flat belt is mounted on the lower end of the arm 12. The seedling fall belt 13 is wound in a slanting back-down posture between the front fixed roller 16 and the rear moving roller 14 that are pivotally supported at a predetermined position of the body cover 15 of the seedling winding assist device 1. Then, the power from the drive motor 6 is transmitted to the fixed roller 16 through the seedling lodging transmission chain 17 arranged on the right side to drive. Therefore, the seedling lodging belt 13 acts as a lodging means that acts on the leaf portion of the mat seedling just before winding to fall the leaf portion to the winding side. A connecting rod 18 for connecting the left and right arms 12 is provided above the moving roller 14, and a free rotating roller 19 is provided around the connecting rod 18. Even if it is too close to the winding assist device 1, the outer peripheral surface of the roll seedling comes into contact with the idler roller 19 so that the roll seedling does not interfere with the seedling fall belt 13 and surrounding structures and be caught. Yes. A connecting shaft 20 that connects the left and right arms 12 is provided at the upper end of the arm 12, and the connecting shaft 20 is fitted into left and right arc-shaped elongated holes 21 formed in the body cover 15 of the seedling winding assist device 1. It is combined. An adjustment rod 22 inserted through the intermediate portion of the connecting shaft 20 is provided, and the shoulder of the adjusting rod 22 restricts the movement of the connecting shaft 20 to the rear side, and the lower portions of the left and right arms 12 rotate forward and downward. To regulate. In addition, due to the resistance that the seedling fall belt 13 receives from the mat seedling, the connecting shaft 20 moves forward along the adjustment rod 22 so that the lower portions of the left and right arms 12 can rotate upward. This prevents the mat seedling from being damaged in the state where an excessive load is applied to the lodging belt 13. Further, the midway portion of the adjusting rod 22 is screwed into a bracket 23 provided at the rear portion of the seedling winding assist device 1, and the adjusting rod 22 is rotated to rotate the adjusting rod 22. 23 moves back and forth, and the left and right arms 12 can be rotated up and down to adjust the position of the lower end of the seedling lodging belt 13. Therefore, the adjusting rod 22 and the handle 24 serve as position changing means for changing the vertical position at which the seedling lodging belt 13 acts on the leaf portion of the mat seedling. The seedling fall belt 13 is rotationally driven so that the lower surface side is shifted obliquely to the lower rear side and turned upward by the moving roller 14. Further, the rotation speed of the seedling lodging belt 13 is set to be higher than the traveling speed of the seedling winding assist device 1. By driving the seedling lodging belt 13, the leaf portion y is pushed down with respect to the mat seedling bed so that the mat seedling is wound around the winding shaft 4. It has become. On the inner peripheral surface of the seedling fall belt 13, ridges are integrally formed on both left and right ends, and grooves 25 for fitting the ridges are formed on both left and right ends of the fixed roller 16 and the moving roller 14. . In addition, gear surfaces 26 formed of gear-shaped irregularities are formed on the left and right sides of the groove 25 in the fixed roller 16 so that the seedling fall belt 13 is driven and rotated without slipping.

  The lower part of the body cover 15 of the seedling winding assist device 1 is configured to be transparent so that the traveling wheels 5 can be seen from the side so that the traveling wheels 5 can be easily set on the wall 2a of the seedling tray 2. . Further, at both the left and right ends of the front end of the main body cover 15, a convergence guide plate 27 is provided for guiding the leaf portion y of the left and right outer end portions of the mat seedling by converging inward in the left and right direction. The left and right seedling guide rods 28 made of an elastic body that can be deformed by an external force are respectively attached to the front lower end of the main body cover 15. The rear end is made to approach the lower surface of the seedling lodging belt 13. As the seedling winding assist device 1 travels forward, the leaf portion y of the left and right outer ends of the mat seedling guided to the left and right by the left and right convergence guide plates 27 is not further damaged by the deformation action of the seedling gathering guide rod 28. The leaves are pushed inward and guided to the working position of the seedling lodging belt 13 so that the leaf portion y does not protrude outwardly from the left and right. Further, as shown in FIG. 5, the left and right lower edges 15a of the body cover 15 are bent inward in the left-right direction, and the leaf portion y of the left and right outer ends of the mat seedling is the wall portion of the seedling tray 2 on the left and right outer sides. The leaf portion y is prevented from being sandwiched between the wall portion 2a and the traveling wheel 5 by being guided so as not to be positioned on 2a. In addition, on the surfaces of the left and right side portions of the seedling lodging belt 13, ridges 13a oblique to the circumferential direction of the belt 13 are provided so that the outer side in the left and right direction is positioned on the rear side on the lower surface side of the belt 13. Thus, the protrusion 13a is corrected so that the leaf portion y of the left and right outer ends of the mat seedling faces inward in the left-right direction by driving the seedling lodging belt 13. Accordingly, the convergence guide plate 27, the seedling gathering guide rod 28, the lower end edge 15a of the main body cover 15, the ridges 13a, and the like are arranged on the leaf portion of the outer end in the direction intersecting the winding direction of the mat seedling before winding. It becomes a guide means to guide inside. The left and right roll seedling guide plates 29 are provided so as to protrude from the main body cover 15 on the rear side so that the roll seedlings formed between the left and right roll seedling guide plates 29 are positioned. invite. An upper edge 29a and a lower edge 29b of the roll seedling guide plate 29 are provided to be bent outward in the left-right direction. As a result, when performing the winding operation while rotating the roll seedling between the left and right roll seedling guide plates 29, the left and right end portions of the roll seedling are caught from the upper end edge portion 29a and the lower end edge portion 29b of the roll seedling guide plate 29. The roll seedling can be smoothly rotated. In addition, a roll seedling position index 30 that protrudes inward in the left-right direction is provided on the inner surface in the left-right direction of the roll seedling guide plate 29, and the outer peripheral surface of the front end of the roll seedling is the roll seedling regardless of changes in the outer diameter of the roll seedling. The seedling immediately after the leaves fall on the seedling lodging belt 13 while maintaining the positional relationship between the seedling lodging belt 13 and the front end of the roll seedling by performing the winding operation so as to be the position of the position index 30 Can be wound up. Therefore, it is possible to prevent the leaf portion from being restored and the mat seedling from being unwound well before the mat seedling is wound after the leaf portion is fallen by the seedling lodging belt 13. In addition, the roll seedling position index 30 is configured to be long in the vertical direction, and easily configures the front end of the roll seedling regardless of the vertical position of the roll seedling according to the change in the outer diameter of the roll seedling. In addition, although the roll seedling position index 30 is composed of a protrusion, any material that can serve as an index, such as a hole or a simple mark, may be used.

  A contact-type roll seedling sensor 31 for detecting the front outer peripheral edge of the roll seedling is provided on the rear side of the seedling falling belt 13 and at the center of the left and right sides. The detection unit 31a of the roll seedling sensor 31 is configured in a bar shape extending in a substantially vertical direction so as to pass between the left and right roll seedling guide plates 29, Regardless of the front-rear position, the front end of the roll seedling is detected immediately after the seedling lodging belt 13, and based on this detection, the drive motor 6 is driven to run the seedling winding assisting device 1, thereby It is possible to wind up the seedling immediately after the leaf part has fallen with the seedling lodging belt 13 while keeping the positional relationship with the front end of the roll seedling constant. Thereby, even if it does not perform special operation of the speed adjustment operation tool 10 grade | etc., The seedling winding assistance apparatus 1 can be drive | worked, and the workability | operativity of winding work improves. In addition, by using the speed adjustment operation tool 10 and the roll seedling sensor 31 in combination, it is possible to travel in any form desired by the operator. In addition, when it is desired to travel by the manual operation with the speed adjusting operation tool 10, it is preferable to separately provide a switching means for ignoring the detection of the roll seedling sensor 31. Further, when traveling by the detection of the roll seedling sensor 31, it may be configured to travel a predetermined distance each time the roll seedling sensor 31 is detected so that the roll seedling sensor 31 is not pushed excessively by being continuously pressed. Note that the roll seedling sensor 31 and the roll seedling position index 30 overlap in a side view and are arranged at the same front and rear positions.

  Therefore, according to this seedling winding assisting device 1, by changing the lower end position of the seedling lodging belt 13 by operating the handle 24, the lodging action state of the leaf portion of the mat seedling can be changed and adjusted as desired. When the strength of the leaf is small, the lowering position of the seedling lodging belt 13 is raised to raise the lodging action position, thereby preventing the leaf from being broken and damaged. On the other hand, when the strength of the seedling leaves is large and the leaves are difficult to fall, the lowering position of the seedling lodging belt 13 is lowered to lower the lodging action position, thereby obtaining a sufficient lodging action. Therefore, by changing the lodging position according to the condition of the seedling, it is possible to appropriately form a roll seedling without damaging the seedling and with a desired outer diameter, and by extension, seedling transplanting by a seedling transplanter is appropriate. It can be done. Further, since the leaf portion of the outer end portion of the mat seedling is guided inward by the guide means such as the seedling gathering guide rod 28, the leaf portion of the mat seedling protrudes greatly to the outside due to the falling action of the seedling lodging belt 13. This can be prevented, and a roll seedling can be formed appropriately without protruding the leaf part to the outside.

  A left and right seedling presser arm 32 extending diagonally forward and downward from the main body cover 15 is provided at the front portion of the seedling winding assist device 1 so as to be rotatable up and down, and the arm 32 is interposed between the left and right seedling presser arms 32. A seedling presser roller 33 is provided at the rotating tip of the. The seedling pressing roller 33 is made of heavy iron, and is driven at a peripheral speed substantially the same as the traveling speed by the power from the drive motor 6 being transmitted through the seedling pressing transmission chain 34. Therefore, when the strength of the mat seedling leaves is strong and the leaves are hard and difficult to fall, the handle 24 is operated to move the seedling lodging belt 13 up to a height that does not act on the leaves of the mat seedlings. By running the mat seedling from the opposite direction to the winding operation of the mat seedling, the seedling presser roller 33 can press the leaf portion of the mat seedling in advance to one side. Thereafter, the seedling holding arm 32 is rotated upward to move the seedling holding roller 33 to a height at which the seedling holding roller 33 does not act on the leaf portion of the mat seedling, and the handle 24 is operated so that the seedling lodging belt 13 is moved to the mat seedling leaf portion. The seedling winding assisting device 1 can be moved down to a desired height, and the seedling winding belt 13 can wind the mat seedling while reliably falling the seedling leaf to the winding side by the seedling lodging belt 13. In addition, it is good also as a structure which reversely drives the drive motor 6 and can make the seedling winding assistance apparatus 1 run backward, and the structure which makes the leaf part of the mat seedling fall down to one side by the seedling pressing roller 33 in this backward movement. Alternatively, the seedling presser roller 33 and the seedling presser arm 32 may be detachably provided so that the seedling presser roller 33 can be removed when it is not necessary to lay down the seedling leaves in advance.

Side view showing seedling winding assist device Partial cross-sectional plan view showing seedling winding assist device Partial cross-sectional rear view showing seedling winding assist device Side view showing the seedling lodging belt Rear view showing the bottom edge of the cover Cross-sectional plan view showing a seedling lodging belt

Explanation of symbols

  1: seedling winding assist device, 3: mat seedling, 13: seedling lodging belt, 13a: ridge, 15: main body cover, 15a: lower end edge of main body cover, 22: adjustment rod, 24: handle, 27: convergence Guide board, 28: seedling gathering guide, y: leaf

Claims (2)

The lowering means that acts on the leaves of the mat seedling before being wound when the mat seedling is wound in a roll shape, and that the lowering means acts on the leaves of the mat seedling. A seedling winding assist device provided with position changing means for changing the position. The seedling winding assist device according to claim 1, further comprising guide means for guiding inward the leaf portions of the left and right outer sides of the mat seedling before winding the mat seedling in a roll shape.

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