Transplanter

Abstract

To provide a rice transplanter that can be folded so that the guide rail does not interfere when folding the seedling mounting table. 【Solution means】 A seedling mounting table 2 installed at the rear of the vehicle body 1, whose left and right side parts 2a can rotate to the central side part 2b and can be folded, guide rails 3 arranged in the left-right direction, and a spraying machine 4 for applying chemicals that moves left and right on the guide rail 3, and a chemical spraying device 5 having the same. The left and right end parts 3a of the guide rail 3 can rotate to the central part 3b of the guide rail 3 and can be folded. The central part 3b of the guide rail 3 is supported by a support column 6 erected on the seedling mounting table 2 so as to be rotatable in the front-rear direction. When folding the seedling mounting table 2, first fold the left and right end parts 3a of the guide rail 3, and after rotating the support column 6 forward compared to the normal posture state, fold the seedling mounting table 2 so that the folded guide rail 3 is sandwiched between the left and right side parts 2a of the folded seedling mounting table 2 and the central side part 2b of the seedling mounting table 2. A rice transplanter characterized by this.

Description

Technical Field

[0001] The present invention relates to a rice transplanter equipped with a seedling placing table for planting seedlings.

Background Art

[0002] Conventionally, a rice transplanter is known in which both sides of a seedling placing table for planting seedlings are folded toward the center side during non-operation. For example, as shown in Patent Document 1, the seedling placing table has left and right seedling placing table portions that are asymmetric and are configured to be foldable in the left-right direction. The chemical spraying device includes a guide rail along the left-right direction and a moving sprayer that is guided by the guide rail and moves horizontally along the seedling placing surface. The guide rail is composed of a plurality of divided guide rails having different lengths in the left-right direction and fixed to each seedling placing table portion, and a rice transplanter is known in which the longer divided guide rail is disposed so as to be positioned on the front side in the use state than the shorter divided guide rail.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in such a rice transplanter, even when the seedling placing table is folded, the chemical spraying device is not configured to be folded.

[0005] In the present invention, in consideration of the problems of such a conventional rice transplanter, an object is to provide a rice transplanter that can be folded so that the guide rail does not get in the way when folding the seedling placing table.

Means for Solving the Problems

[0006] A first aspect of the present invention is A seedling mounting table installed at the rear of the vehicle body, with its left and right side portions rotatable toward the central side portion for folding, and a chemical spraying device having guide rails arranged in the left - right direction along the seedling mounting table and a spraying machine for applying chemicals that moves left and right on the guide rails, and is provided with, the left and right end portions of the guide rails are rotatable toward the central portion of the guide rails for folding, the central portion of the guide rails is supported by support columns erected on the seedling mounting table so as to be rotatable in the front - rear direction, when folding the seedling mounting table, first fold the left and right end portions of the guide rails, and after rotating the support columns forward compared to the normal posture state, fold the seedling mounting table such that the folded guide rails are sandwiched between the left and right side portions and the central side portion of the folded seedling mounting table. A rice transplanter characterized by this is provided.

[0007] A second aspect of the present invention is a regulating member is provided to regulate the rotation for folding the left and right side portions of the seedling mounting table toward the central side portion to a predetermined position so that the seedling mounting table does not contact the guide rails and their accessory parts when the left and right side portions of the seedling mounting table are folded toward the central side portion. It is a rice transplanter of the first aspect of the present invention.

[0008] A third aspect of the present invention is the left and right end portions of the guide rails are detachably supported by support frames erected on the left and right side portions of the seedling mounting table to be rotatable outward, when the left and right end portions of the guide rails are folded, the support frames are separated from the left and right end portions of the guide rails, and further, the support frames open outward so as to be parallel to the surfaces of the left and right side portions of the seedling mounting table from the erected state, and then the left and right side portions of the seedling mounting table are folded. It is a rice transplanter of the second aspect of the present invention.

[0009] A fourth aspect of the present invention is The upper end of the support column is connected to the central part of the guide rail, and near the upper end, an arm with an elongated hole drilled therethrough and extending forward in an arc shape from there is fixed. At a position facing the arrangement position of the arm, a sub-column erected on the central side portion of the seedling placing table is provided. The rice transplanter of the third aspect of the present invention is such that the elongated hole of the arm and the upper end of the sub-column are connected to each other by a coupler and can be separated.

[0010] The fifth aspect of the present invention is The left and right end portions of the guide rail are connected to the central part of the guide rail such that the upper sides of the respective ends are connected by a hinge, and the lower sides are detachably connected by a fastener. This is the rice transplanter of the fourth aspect of the present invention.

[0011] The sixth aspect of the present invention is In the case where power is drawn from one of the two left and right end portions to the spreader, when one of the left and right end portions on the side from which the power is drawn is not folded and the other of the left and right end portions on the side to which the power is not drawn is folded, By folding the other left and right end portion on the side to which the power is not drawn, the end face on the central side portion of the other left and right end portion to be folded moves upward, and by utilizing the movement operation of the end face, the stopper disposed inside the central part of the guide rail projects toward the side where the spreader is located, preventing the spreader from falling out through the opening portion of the fold formed on the folding side. This is the rice transplanter of the fifth aspect of the present invention.

[0012] The seventh aspect of the present invention is the rice transplanter of the sixth aspect, wherein the spreader is stopped at a location where the support column is not erected before folding the left and right end portions of the guide rail.

Advantages of the Invention

[0013] According to the present invention, when folding the seedling placing table by tilting the guide rail forward, it is possible to suppress the protrusion to the rear.

Brief Description of the Drawings

[0014]

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Mode for Carrying Out the Invention

[0015] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0016] FIG. 1 is a side view of a rice transplanter according to an embodiment of the present invention, and FIG. 2 is a perspective view centered on the seedling mounting table of the rice transplanter. Hereinafter, front-rear and left-right directions are defined based on the traveling direction of the rice transplanter.

[0017] In FIGS. 1 and 2, 1 is a vehicle body, and a seedling mounting table 2 is installed at the rear of the vehicle body 1. The left and right side portions 2a, 2a of the seedling mounting table 2 can be rotated toward the central side portion 2b and folded.

[0018] Furthermore, guide rails 3 are arranged in the left - right direction along the seedling mounting table 2. This guide rail 3 is surrounded by a decorative member 3c. This decorative member 3c and other wirings are examples of the accessory parts of the present invention. Also, a spraying machine 4 for spraying chemicals while moving left - right on the guide rail 3 is provided. The guide rail 3 and the spraying machine 4 constitute a chemical spraying device 5. This decorative member 3c functions as a resin - made cable carrier cover.

[0019] The left and right end portions 3a, 3a of the guide rail 3 can be rotated toward the central portion 3b side of the guide rail 3 and folded.

[0020] Figure 3 is the rear view of the rice transplanter, Figure 4 is the view of the left - hand end of the guide rail 3 surrounded by the decorative member 3c. Figure 5 is a perspective view showing the outline of the guide rail 3 surrounded by the decorative member 3c. Figure 6 is a perspective view seen from below of the contact state between the left and right end portions 3a and the central portion 3b, Figure 7 is a perspective view seen from above of the contact state between the left and right end portions 3a and the central portion 3b, and Figures 8 and 9 are perspective views showing the state where the left and right end portions 3a are rotated approximately 90 degrees upward. Figure 10 is a perspective view showing the state where the left and right end portions 3a are rotated 180 degrees and placed on the central portion 3b.

[0021] That is, as shown in Figure 7, the upper sides of the respective ends of the left and right end portions 3a of the guide rail 3 are connected to each other by a hinge 7 with respect to the central portion 3b.

[0022] On the other hand, as shown in Figures 5 and 6, the lower sides of the respective ends of the left and right end portions 3a of the guide rail 3 are connected to each other by a fastener (so - called snap button) 8 with respect to the central portion 3b. Therefore, by removing this fastener 8, the left and right end portions 3a of the guide rail 3 can be easily rotated upward and folded onto the upper surface of the central portion 3b. Even when folded, this fastener 8 can also be used to fix the left and right end portions 3a to the central portion 3b.

[0023] In addition, in FIG. 10, 3c1 and 3c2 are a convex portion and a concave portion with respect to each other, and are positioning portions for ensuring that the left and right end portions 3a and the central portion 3b abut at accurate positions when unfolded and extended.

[0024] Next, FIG. 11 is a perspective view of the seedling placing table 2, and is a perspective view in which the guide rail 3 surrounded by the decorative member 3c is in a working state. FIG. 12 is a side view thereof, and the guide rail 3 surrounded by the decorative member 3c stands substantially vertically away from the seedling placing table 2. In this state, the spraying machine 4 moves left and right on the guide rail 3 to spray the chemical agent. In the figure, the hopper for containing the chemical agent of the spraying machine 4 is omitted.

[0025] FIG. 15 shows a state in which the guide rail 3 surrounded by the decorative member 3c is folded upward as described above. A gear driven by a motor in the spraying machine 4 meshes with a rack 9 fixed in front of the guide rail 3, so that the spraying machine 4 can move left and right on the guide rail 3. A fixed chain may be used instead of the rack.

[0026] In FIG. 15, a support column 6 that supports the guide rail 3 surrounded by the decorative member 3c, the rack 9, etc. is erected on the seedling placing table 2. That is, the upper end 6a of the support column 6 is fixed to the guide rail 3, and the lower end 6b thereof is pivotally connected to a bracket 2c provided on the seedling placing table 2 at a support shaft 2d so as to be rotatable in the front-rear direction.

[0027] On the other hand, in the vicinity of the upper end 6a thereof, an arm 6c having a long hole 6c1 formed therein and extending forward in an arc shape therefrom is fixed (see FIG. 19). Further, a sub-support column 6d is erected at a position on the central side portion 2b of the seedling placing table 2 that faces the arrangement position of the arm 6c.

[0028] Furthermore, the long hole 6c1 of the arm 6c and the upper end 6d1 of the sub-support column 6d can be fixed at an arbitrary position by a knob bolt 6e. The knob bolt 6e is an example of the connector of the present invention.

[0029] Combinations such as the support struts 6, brackets 2c, arms 6c, and auxiliary struts 6d are provided at three locations in the left-right direction on the central portion 3b of the guide rail 3 (see Fig. 18).

[0030] Fig. 17 shows a state where such a support strut 6 is tilted forward and the guide rail 3 surrounded by the decorative member 3c is brought close to the seedling placing table 2. Fig. 13 is a perspective view showing the whole such as the seedling placing table 2 in that state. Fig. 14 is a side view thereof. That is, by loosening the knob bolt 6e, moving the arm 6c forward, bringing the guide rail 3 close to the seedling placing table 2, tilting it forward until the tip 6d1 of the auxiliary strut 6d reaches the rear end of the long hole 6c1, and then tightening the knob bolt 6e, the guide rail 3 surrounded by the decorative member 3c is stably fixed in a low posture.

[0031] By the way, during normal operation, the left and right end portions 3a of the guide rail 3 surrounded by the decorative member 3c are not folded but are deployed. However, the outermost ends 3a1 of the left and right end portions 3a (see Figs. 4, 5, 11, 12, and 18) are connected to the seedling placing table 2 as follows. Thereby, chemical spraying can be stabilized.

[0032] Fastening fixtures 8 are provided at the outer ends 3a1 of the left and right end portions 3a of the guide rail 3 (see Fig. 4). Further, at the position of the seedling placing table 2 facing the outer ends 3a1, triangular support frames 10 are erected so as to be rotatable outward (see Figs. 5, 11, and 20). The tip 10a of this support frame 10 and the outer ends 3a1 of the left and right end portions 3a of the guide rail 3 can be easily detached and attached by operating the fastening fixture 8 (see Fig. 4).

[0033] Furthermore, as shown in Fig. 21, this support frame 10 is rotatable outward so as to be parallel to the surfaces of the left and right side portions 2a of the seedling placing table 2 from the erected state as described above. When folding the left and right side portions 2a of the seedling placing table 2, if the triangular support frame 10 remains erected, it will interfere with the guide rail 3 and the central side portion 2b of the seedling placing table 2. Therefore, it is designed to be deployable outward so as not to cause interference.

[0034] That is, as shown in FIG. 20, the side 10b of the triangular support frame 10 on the seedling placing table 2 side is composed of an elongated rod member 10b that extends upward and is slightly extended downward. As shown in FIGS. 22 and 23, the lower end 10b1 of the rod member 10b is rotatably received by a bracket 11 fixed to the seedling placing table 2. A protruding piece 10b2 is welded at a position slightly above the lower end 10b1 of the rod member 10b, and a convex portion protrudes downward on the lower surface of the tip of the protruding piece 10b2. Further, a guide piece 12 is also welded at a position slightly above the bracket 11 fixed to the seedling placing table 2. Two holes 12a1 and 12a2 are formed in the guide piece 12. The guide piece 12 is located below the protruding piece 10b2.

[0035] The convex portion on the lower surface of the tip of the protruding piece 10b2 is in a relationship of shape and size that can be fitted into the holes 12a1 and 12a2. Note that 13 is a reinforcing plate of the triangular support frame 10.

[0036] As shown in FIG. 26, a spring 14 is fitted into the upper end of the rod member 10b, and it can be moved up and down by hand. That is, when the rod member 10b is lifted upward, the convex portion of the protruding piece 10b2 that was fitted into one of the holes 12a1 and 12a2 of the guide piece 12 comes out, and the triangular support frame 10 can be expanded outward and can also be freely closed inward. Just lower the rod member 10b with the convex portion aligned with the hole 12a1 or 12a2 on the side where positioning is desired. The hole 12a1 is a hole for positioning when opening outward, and the hole 12a2 is a hole for positioning when standing and working.

[0037] Furthermore, FIG. 25 is a view showing that the weeding rod 15 for weeding while suppressing the seedlings to some extent is inserted and stored using the empty hole 12a2 (see FIG. 23). That is, when folding the left and right side portions 2a of the seedling placing table 2 during non-operation, the support frame 10 is expanded outward as described above. Therefore, since the convex portion comes out of the hole 12a2, the hole 12a2 becomes empty. Thus, the empty hole 12a2 can be used to store the weeding rod 15, and FIG. 25 shows the state.

[0038] If it is set up in this way, when working, if the weeding rod 15 is not removed, the triangular support frame 10 cannot be erected for work, so it is possible to prevent forgetting to attach the weeding rod 15 to its original position.

[0039] For that purpose, the thickness of the portion of the weeding rod 15 that enters the hole 12a2 needs to be smaller than the diameter of the hole 12a2.

[0040] Next, FIG. 27 is a perspective view seen from the rear showing the state in which the left and right side portions 2a of the seedling placing table 2 are folded. FIG. 28 is a schematic view seen from the lower side of substantially the back. Here, 16 is a folding shaft frame, which is erected on the seedling placing table 2, and the left and right side portions 2a are folded inward about its shaft 16a.

[0041] As shown in FIG. 28, a regulating rod 17 is fixedly erected on the upper side of the outermost side of the left and right side portions 2a. When the left and right side portions 2a are folded, it stands upright toward the central side portion 2b of the seedling placing table 2, that is, downward. On the other hand, at the position where the regulating rod 17 of the central side portion 2b of the seedling placing table 2 moves after being folded, a receiving rod 18 having a concave portion provided at the upper end is erected to receive the lower end of the regulating rod 17 that moves downward. This regulating rod 17 is an example of the regulating member of the present invention.

[0042] With such a structure, when the left and right side portions 2a of the seedling placing table 2 are folded, a space of a predetermined size can be formed between the left and right side portions 2a and the central side portion 2b, so that it is possible to prevent collision with the guide rail 3 surrounded by the decorative member 3c and the like that are folded and arranged in the space. Note that the spraying machine 4 is stopped between the support columns 6 and the support columns 6.

[0043] In addition, the following structure is adopted to prevent malfunction related to the driving of the spreader 4 during storage. That is, among the left and right end portions 3a, the power supply for the spreader 4 is taken from the end portion 3a on the normal right side. Now, when folding the left and right end portions 3a or only the right end portion 3a, since the power connector is naturally disconnected for folding, there is no concern that the spreader 4 will move.

[0044] On the other hand, when only the left end portion 3a is folded without folding the right end portion 3a, since the power supply to the spreader 4 is on, there is a risk that the spreader 4 will move due to malfunction and fall from the open portion of the fold on the left side.

[0045] Therefore, for fall prevention, it is desirable to provide a stopper 19 that protrudes by the folding operation near the open portion of the fold that can be formed during folding. For example, in FIGS. 10 and 15, 20 is the end face of the fold on the central portion 3b side, and 21 is the end face of the fold on the left and right end portion 3a side, which are in contact with each other in the unfolded state. As shown in FIG. 15, the stopper 19 can protrude from its vicinity toward the spreader 4 side.

[0046] Furthermore, specifically, as shown in FIGS. 16(A) and (B) (the detail 7 is omitted in the plan view), a stopper mechanism is arranged inside near the end face 20 of the central portion 3b. Note that FIG. 16(A) shows the state where the left and right end portions 3a are not folded and extended, and FIG. 16(B) shows the state where the left and right end portions 3a are being folded upward.

[0047] Inside the central portion 3b, a shaft 22 parallel to the longitudinal direction (left - right direction) of the central portion 3b is arranged. The shaft 22 is slidably held left and right by a holding portion 24 fixed to the central portion 3b. Further, a flange portion 23 is fixed in the middle of the shaft 22, and a compression spring 25 is provided between the flange portion 23 and the holding portion 24. Therefore, in a state where no external force is applied, the shaft 22 protrudes outward from the hole 20a of the end face 20 as shown in FIG. 16(B).

[0048] Furthermore, a rod-shaped stopper 19 is disposed at a position closer to the center of the shaft 22. This stopper 19 is rotatably supported by a fulcrum portion 26 fixed to the central portion 3b. Further, a fastening portion 27 of a tension spring 28 is disposed below the stopper 19, and the tension spring 28 is attached between the fastening portion 27 and an extension portion 31 of the lower end of the stopper 19, pulling the extension portion 31 of the lower end. Also, the right end of the shaft 22 can abut near the center of the stopper 19. However, in the state of FIG. 16(B), since it does not receive the force from the shaft 22, the stopper 19 rotates counterclockwise in the drawing due to the pulling force of the tension spring 28, and the tip 19a of the stopper 19 protrudes from a slit 30 formed in the wall of the central portion 3b, entering a state of preventing the movement of the spreader 4.

[0049] On the other hand, as shown in FIG. 16(A), in a state where the left and right end portions 3a are not folded, since the end faces 21 of the left and right end portions 3a are pushing the left end of the shaft 22, the right end of the shaft 22 pushes the vicinity of the center of the stopper 19 rightward. As a result, the tip 19a of the stopper 19 rotates clockwise and retracts inward from the slit 30, entering a state of not preventing the movement of the spreader 4.

[0050] In this way, when the stopper 19 protrudes, even if the spreader 4 moves temporarily, it is blocked there, preventing it from falling.

[0051] As shown in FIG. 16, the position of the outer edge 30a of the slit 30 is provided at a position where it hits the stopper 19 when the stopper 19 protrudes perpendicularly to the surface of the guide rail 3. Thus, even if the spreader 4 tries to fall outward, since the stopper 19 hit by the spreader 4 itself hits the outer edge of the slit 30 and cannot move further physically outward, it becomes safe.

[0052] Note that regardless of whether the spreader 4 is energized or not, it is desirable that the above stopper mechanism exists on both the left and right sides for safety in case of an emergency.

[0053] The operation of the rice transplanter according to the following embodiment will be described.

[0054] When performing a trial feeding or work, as shown in Fig. 29, move the spreader 4 from any position to the left end from the right end, and finally move it to the position at the center of the left and right of the seedling mounting table 2 and stop.

[0055] On the other hand, at the time of storage, as shown in Fig. 30, move the spreader 4 from the right end to the left end and finally move it to a position shifted from the center position and stop. That is, stop the spreader 4 at a place where the support column 6 is not erected. Since the guide rail 3 surrounded by the decorative member 3c rotates forward by about 30 degrees at the time of storage as described above, it is necessary to prevent it from colliding with the auxiliary column 6d and the like where the support column 6 is located. In this embodiment, since the support column 6 and the like are arranged at the center position, in such a case, stop at a position shifted 250 mm to the right, for example, from the center position. When the support column 6 is not arranged at the center position, shift it from the place where the support column 6 and the auxiliary column 6d facing it are located and stop.

[0056] Next, as shown in Fig. 18(A), separate the connection between the outer end 3a1 of the left and right end portions 3a and the tip 10a of the support frame 10. That is, manually remove the fastener 8 shown in Fig. 4, and further manually remove the fasteners 8 shown in Figs. 5 and 6. After doing so, as shown in Figs. 9, 10, and 18(B), fold the left and right end portions 3a and fix them to the upper surface of the central portion 3b with the fastener 8.

[0057] Next, the guide rail 3 surrounded by the decorative member 3c folded in this way is tilted forward, that is, toward the seedling mounting table 2 side. Specifically, as shown in Figs. 13, 14, and 17, the support column 6 that supports the guide rail 3 is tilted forward with the support shaft 2d as a fulcrum. For that purpose, loosen the knob bolt 6e that has been fixed to that position until then, and rotate the arm 6c forward. At that time, the long hole 6c1 of the arm 6c is guided along the tip 6d1 of the auxiliary column 6d erected on the seedling mounting table 2.

[0058] After reaching the rear end of the long hole 6c1, the knob bolt 6e is tightened again to fix the support column 6 in that position. That is, the guide rail 3 surrounded by the decorative member 3c is fixed at the position where it has fallen forward.

[0059] Next, as shown in FIGS. 21, 23, and 24(B), the support frames 10 provided on both the left and right sides are opened outward. That is, first, against the spring 14 as shown in FIG. 26, the rod member (side) 10b in FIG. 20 is lifted by hand. As a result, as shown in FIG. 22 until then, the convex portion formed on the lower surface of the projecting piece 10b2 welded to the lower end 10b1 of the rod member 10b comes out from the outer hole 12a2 of the guide piece 12 fixed to the seedling placing table 2. While holding the rod member 10b lifted in this way, the support frame 10 is opened outward. When the convex portion reaches the position of the inner hole 12a1 of the guide piece 12, the rod member 10b is released, and the convex portion is inserted into the inner hole 12a1 by the biasing force of the spring 14.

[0060] As a result, the support frame 10 is in an open state, that is, it is positioned in the same plane as the left and right side portions 2a of the seedling placing table 2. When folding the left and right side portions 2a as described below, it is possible to eliminate the possibility of interference with the guide rail 3 surrounded by the decorative member 3c and the like.

[0061] Note that when the support frame 10 is opened in this way, the outer hole 12a2 becomes empty. Therefore, as shown in FIG. 25, the lower end of the weeding rod 15 that is not used during storage is inserted there to serve as a temporary storage place. During work, it is returned to the original installation position of the weeding rod 15, the hole 12a2 is emptied, and it is used to close the support frame 10.

[0062] Next, as shown in FIGS. 27 and 28, the left and right side portions 2a of the seedling mounting table 2 are folded toward the central side portion 2b with the shaft 16a of the folding shaft frame 16 as a support shaft (see FIGS. 12, 13, and 14). At this time, as shown in FIGS. 2 and 28, the tip (male type) of the regulating rod (regulating member) 17 erected on the left and right side portions 2a abuts against the tip (female type) of the receiving rod 18 erected on the central side portion 2b and is received, ensuring an interval. Specifically, the folding shaft frame 16 can be stopped at 175 degrees instead of opening it 180 degrees. Thereby, it is possible to prevent the left and right side portions 2a from interfering with the guide rail 3 or the like surrounded by the decorative member 3c that has been folded first. In this way, storage can be performed safely.

[0063] Conventionally, when the spraying machine 4 is at the center of the vehicle body, a balance move is performed as an operation for ensuring the levelness of the seedling mounting table 2. However, since the storage position is shifted from the center as described above, it is desirable to perform the balance move after operating the seedling mounting table 2 and starting spraying so that the machine comes to the center of the body.

[0064] Also, in the above-described embodiment, as shown in each figure, three sets of the support columns 6, the arms 6c, the sub-columns 6d, etc. are provided at the center and on its left and right, but it is not limited to this, and two or four or more may be provided.

Industrial Applicability

[0065] The present invention relates to a rice transplanter equipped with a seedling mounting table for planting seedlings. When folding the seedling mounting table, it is possible to suppress protrusion to the rear, so it is optimal for a rice transplanter.

Explanation of Signs

[0066] 1 Vehicle body 2 Seedling mounting table 2a Left and right side portions 2b Central side portion 2c Bracket 2d Support shaft 20 Central portion end face 20a Hole 21 Both end portions end face 3 Guide rail 3a Left and right ends 3b Central part 3c Cosmetic member 4 Sprayer 5 Agent spraying device 6 Support pillar 6a Upper end 6b Lower end 6c Arm 6d Sub - pillar 6e Connector (knob bolt) 7 Hinge 8 Fastening device 9 Rack 10 Support frame 10a Tip 10b Side (bar member) 11 Bracket 12 Guide piece 13 Reinforcing plate 14 Spring 15 Dew - removing rod 16 Folding - axis frame 16a Axis 17 Regulation member (regulation rod) 18 Receiving rod 19 Stopper

Claims

1. A seedling carrying platform installed at the rear of the vehicle body, the left and right sides of which can be rotated toward the center and folded; A drug spraying device having a guide rail arranged in the left-right direction along the seedling loading table and a sprayer for applying a drug that moves left and right on the guide rail, The left and right ends of the guide rail are foldable by rotating toward the center of the guide rail, The center portion of the guide rail is supported by a support pillar that is erected on the seedling loading platform so as to be rotatable in the front-rear direction, This rice transplanter is characterized in that, when folding the seedling carrying platform, first the left and right ends of the guide rail are folded, the support pole is rotated forward compared to its normal position, and then the seedling carrying platform is folded so that the folded guide rail is sandwiched between the left and right side parts of the folded seedling carrying platform and the central side part of the seedling carrying platform.

2. A rice transplanter as described in claim 1, further comprising a regulating member that regulates the rotation of the left and right sides of the seedling carrying platform to a predetermined position for folding them to the central side so that the seedling carrying platform does not come into contact with the guide rail or its accessories when the left and right sides of the seedling carrying platform are folded to the central side.

3. The left and right ends of the guide rail are detachably supported by a support frame that is erected on the left and right sides of the folded seedling tray so as to be rotatable outward, A rice transplanter as described in claim 2, wherein when the left and right ends of the guide rail are folded, the support frame is separated from the left and right ends of the guide rail, and further, the support frame opens outward from the upright state so as to be parallel to the surfaces of the left and right sides of the seedling carrying table, and then the left and right sides of the seedling carrying table are folded.

4. The upper end of the support pillar is connected to the center of the guide rail, and an arm having a long hole is fixed near the upper end and extends forward from the upper end in an arc shape. A sub-support is provided at a position opposite to the position where the arm is arranged, and is erected on the central side of the seedling loading platform.

4. The rice transplanter according to claim 3, wherein the long hole of the arm and the upper end of the sub-support are connectable and detachable to each other by a connector.

5. The rice transplanter according to claim 4, wherein the upper sides of the left and right ends of the guide rail are connected to the center of the guide rail by hinges, and the lower sides are connected to each other by fasteners in a manner that allows them to be freely attached and detached.

6. When power is drawn into the sprayer from one of the two left and right ends, the left and right end on the side drawing in the power is not folded, and the other left and right end on the side not drawing in is folded, A rice transplanter as described in claim 5, wherein by folding the other left and right end portions on the side that is not retracted, the end faces on the central side of the other left and right end portions that are folded move upward, and by utilizing the moving movement of the end faces, a stopper located inside the central portion of the guide rail protrudes toward the side where the sprayer is located, preventing the sprayer from falling out through the opening in the fold that occurs on the folding side.

7. The rice transplanter according to claim 6, wherein the spreader is stopped in a location where the support pole is not erected before folding the left and right ends of the guide rail.

Images