Rice transplanter

Abstract

To provide a rice transplanter which can be folded without an interference of a guide rail when folding a seedling stand.SOLUTION: A rice transplanter includes a chemical spray device having a guide rail provided on a right-left direction along a seedling stand and a spray part which moves on the guide rail in a right-left direction for applying the chemical. Either one or both of the right-left edges of the guide rail can be folded by moving to a center part of the guide rail. The center part of the guide rail is supported to the seedling stand by a support pillar standing in a rotatable manner in a front-rear direction. When folding the seedling stand, either one or both of the right-left edges of the guide rail is first folded and the support pillar is moved on a front side with respect to a normal posture state. Then, the seedling stand is folded such that the folded guide rail is sandwiched between either one or both of the right-left side parts of the folded seedling stand and a center side part of the seedling stand.SELECTED DRAWING: Figure 28

Description

[Technical Field]

[0001] The present invention relates to a rice transplanter equipped with a seedling carrier for planting seedlings. [Background technology]

[0002] Conventionally, there is known a rice transplanter in which both sides of a seedling-planting tray for planting seedlings are folded toward the center when not in use. For example, as shown in Patent Document 1, there is known a rice transplanter in which the seedling-planting tray has asymmetric left and right seedling-planting tray sections that are foldable in the left-right direction, the chemical spraying device includes a guide rail along the left-right direction and a mobile sprayer that is guided by the guide rail and moves laterally along the seedling-planting surface, the guide rail is composed of multiple divided guide rails with different left-right lengths and fixed to each seedling-planting tray section, and the longer divided guide rails are arranged so that they are located further forward than the shorter divided guide rails when in use. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-187942 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in such rice transplanters, even when the seedling tray is folded, the chemical spraying device is not folded.

[0005] In consideration of such problems with conventional rice transplanters, the present invention aims to provide a rice transplanter that can be folded so that the guide rails do not get in the way when folding the seedling tray. [Means for solving the problem]

[0006] The first aspect of the present invention is A seedling loading platform (2) is installed at the rear of the vehicle body (1), and one or both of the left and right side sections can be moved to the center side and folded; The system is provided with a guide rail (3) arranged in the left-right direction along the seedling loading table (2), and a chemical spraying device (5) having a sprayer for applying chemicals that moves left and right on the guide rail (3), Either one or both of the left and right ends of the guide rail (3) can be moved to the center of the guide rail (3) and folded; The center of the guide rail (3) is supported by a support post (6) that is erected on the seedling tray (2) so as to be movable in the front-rear direction. When folding the seedling carrying tray (2), first one or both of the left and right ends of the guide rail (3) are folded, and the support pole (6) is rotated forward compared to its normal position, and then the seedling carrying tray (2) is folded so that the folded guide rail (3) is sandwiched between one or both of the left and right sides of the folded seedling carrying tray (2) and the central side of the seedling carrying tray (2).This rice transplanter is characterized by this.

[0007] The second aspect of the present invention is This is the first rice transplanter of the present invention, which is provided with a regulating member (17) that regulates the rotation for folding to the central side to a predetermined position so that the seedling carrying table (2) does not come into contact with the guide rail (3) or its accessories when either or both of the left and right side portions of the seedling carrying table (2) are folded to the central side.

[0008] The third aspect of the present invention is The seedling carrier (2), which can be folded by moving either one or both of the left and right sides, is configured to rotate to the central side by a rotation mechanism, and is a second rice transplanter of the present invention, characterized in that the rotation angle by the rotation mechanism is more than 90 degrees and less than 180 degrees.

[0009] The fourth aspect of the present invention is Either one or both of the left and right ends of the guide rail (3) is detachably supported by a support frame (10) movably erected on either one or both of the left and right sides of the folding seedling tray (2), When the guide rail (3) is folded, the support frame (10) is separated from either or both of the left and right ends of the guide rail (3), and the support frame (10) moves away from the upright state, and then either or both of the left and right side portions of the seedling carrying table are folded.This is a rice transplanter of the present invention of any one of items 1 to 3. [Effects of the Invention]

[0010] According to the present invention, by tilting the guide rail forward, the seedling tray can be prevented from protruding backward when folded. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a side view of a rice transplanter according to an embodiment of the present invention; [Figure 2] A partial perspective view of the rice transplanter from the rear [Figure 3] A perspective view of the rice transplanter from the rear [Figure 4] Side view of the decorative part and end of the guide rail of the rice transplanter [Figure 5] A perspective view of a decorative member and a guide rail [Figure 6] A perspective view of the bottom surface of the decorative member and the guide rail [Figure 7] A perspective view of the top surface of the decorative member and the guide rail [Figure 8] A perspective view showing a state in which the left and right ends are rotated relative to the center [Figure 9] A perspective view showing a state in which the left and right ends are rotated relative to the center [Figure 10] A perspective view of the state in which the left and right ends are folded toward the center [Figure 11] Perspective view of seedling tray, decorative material, and guide rail [Figure 12]Side view of seedling tray, decorative parts, and guide rails [Figure 13] A perspective view of the seedling tray, the decorative member folded and rotated forward, and the guide rails [Figure 14] A side view of the seedling tray, the decorative member folded and rotated forward, and the guide rail [Figure 15] A partial perspective view of the state in which the left and right ends are folded toward the center. [Figure 16] (A) and (B) are schematic side views of the rice transplanter, focusing on the stopper. [Figure 17] A partial perspective view of the state in which the left and right ends are folded toward the center and rotated forward. [Figure 18] (A) and (B) are perspective views showing how the decorative member and guide rail are folded. [Figure 19] A side view of the rice transplanter's support pillars and auxiliary pillars [Figure 20] Perspective view of the seedling tray and support frame [Figure 21] A perspective view of the seedling tray and the support frame when opened outwards. [Figure 22] Enlarged view of part of Figure 20 [Figure 23] Enlarged view of part of Figure 21 [Figure 24] (A) and (B) are perspective views showing the rotation of the support frame. [Figure 25] A perspective view of the rice transplanter's dewetting pole and seedling tray [Figure 26] Enlarged view of part of Figure 20 [Figure 27] A perspective view of the rice transplanter with the left and right sides of the seedling tray folded down. [Figure 28] A perspective view of the rice transplanter's seedling carrier, seen from below and behind, with the left and right sides folded down. [Figure 29] A perspective view of the seedling tray, decorative parts, guide rails, and sprayer of the rice transplanter from the rear [Figure 30] A perspective view of the seedling tray, decorative parts, guide rails, and sprayer of the rice transplanter from the rear DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0013] 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 of the rice transplanter, focusing on a seedling tray. In the following, the forward and backward directions and the left and right directions are defined based on the traveling direction of the rice transplanter.

[0014] In Figures 1 and 2, reference numeral 1 denotes a vehicle body, and a seedling tray 2 is mounted on the rear of the vehicle body 1. The seedling tray 2 is foldable by rotating the left and right side portions 2a, 2a toward the central side portion 2b.

[0015] Furthermore, a guide rail 3 is arranged in the left-right direction along the seedling tray 2. This guide rail 3 is surrounded by a decorative member 3c. This decorative member 3c and other wiring are examples of accessories of the present invention. Also provided is a sprayer 4 that moves left and right on the guide rail 3 to spray pesticides. This guide rail 3 and the sprayer 4 make up a pesticide spraying device 5. This decorative member 3c functions as a resin cable carrier cover.

[0016] The left and right end portions 3a, 3a of the guide rail 3 can be rotated toward the center portion 3b of the guide rail 3 and folded.

[0017] Fig. 3 shows the rear of the rice transplanter, and Fig. 4 is a view of the left end of the guide rail 3 surrounded by the decorative member 3c. Fig. 5 is a perspective view showing an overview of the guide rail 3 surrounded by the decorative member 3c. Fig. 6 is a perspective view from below of the left and right end portions 3a and the central portion 3b in abutment, Fig. 7 is a perspective view from above of the left and right end portions 3a and the central portion 3b in abutment, and Figs. 8 and 9 are perspective views showing the left and right end portions 3a rotated upward by approximately 90 degrees. Fig. 10 is a perspective view showing the left and right end portions 3a rotated 180 degrees and placed on the central portion 3b.

[0018] That is, as shown in FIG. 7, the left and right end portions 3a of the guide rail 3 are connected to the center portion 3b by hinges 7 at the upper sides of the respective ends.

[0019] 5 and 6, the left and right end portions 3a of the guide rail 3 are connected to the central portion 3b at the bottom by fasteners (so-called snap locks) 8. Therefore, by removing the fasteners 8, the left and right end portions 3a of the guide rail 3 can be easily rotated upward and folded onto the top surface of the central portion 3b. Even when folded, the fasteners 8 can also be used to secure the left and right end portions 3a to the central portion 3b.

[0020] In FIG. 10, 3c1 and 3c2 are a convex portion and a concave portion, respectively, which are positioning portions for ensuring that the left and right end portions 3a and the central portion 3b come into contact at accurate positions when the cover is unfolded and extended.

[0021] Next, Figure 11 is a perspective view of the seedling tray 2, showing the guide rail 3 surrounded by the decorative member 3c in an operational state. Figure 12 is a side view, showing the guide rail 3 surrounded by the decorative member 3c standing almost vertically and spaced apart from the seedling tray 2. In this state, the sprayer 4 moves left and right on the guide rail 3 to spray the chemical. Note that the hopper that holds the chemical in the sprayer 4 is omitted from the figure.

[0022] Figure 15 shows the guide rail 3 surrounded by the decorative member 3c folded upward as described above, with a rack 9 fixed to the front of the guide rail 3 engaging with a gear driven by a motor inside the spreader 4, allowing the spreader 4 to move left and right on the guide rail 3. A fixed chain may be used instead of the rack.

[0023] In Figure 15, a support pillar 6 that supports the guide rail 3 surrounded by a decorative member 3c, the rack 9, etc., is erected on the seedling tray 2. That is, the upper end 6a of the support pillar 6 is fixed to the guide rail 3, and the lower end 6b is connected to a bracket 2c provided on the seedling tray 2 via a support shaft 2d so that it can rotate in the front-to-rear direction.

[0024] On the other hand, an arm 6c having a long hole 6c1 drilled therein and extending forward in an arc shape is fixed near the upper end 6a (see Figure 19). Also, a sub-support 6d is erected on the central side portion 2b of the seedling-carrying table 2 at a position opposite to the position where the arm 6c is arranged.

[0025] Furthermore, the elongated hole 6c1 of the arm 6c and the upper end 6d1 of the sub-support 6d can be fixed at any position by a knob bolt 6e. The knob bolt 6e is an example of the connector of the present invention.

[0026] Such a combination of support pillar 6, bracket 2c, arm 6c, sub-pillar 6d, etc. is provided at three locations in the left-right direction on central portion 3b of guide rail 3 (see FIG. 18).

[0027] Figure 17 shows the state in which such a support post 6 has been tilted forward, bringing the guide rail 3 surrounded by the decorative member 3c closer to the seedling tray 2. Figure 13 is a perspective view showing the entire seedling tray 2 in this state. Figure 14 is a side view. That is, by loosening the knob bolt 6e and moving the arm 6c forward, the guide rail 3 approaches the seedling tray 2 and is tilted forward until the tip 6d1 of the sub-post 6d is at the rear end of the elongated 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 position.

[0028] 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 unfolded, but the outermost ends 3a1 (see Figures 4, 5, 11, 12, and 18) of the left and right end portions 3a are connected to the seedling carrying table 2 as described below. This allows for stable spraying of chemicals.

[0029] A fastener 8 is provided at the outer end 3a1 of the left and right end portions 3a of the guide rail 3 (see Figure 4). Furthermore, at the position of the seedling loading tray 2 where the outer end 3a1 faces, a triangular support frame 10 is erected so as to be rotatable outward (see Figures 5, 11, and 20). The tip 10a of this support frame 10 and the outer end 3a1 of the left and right end portions 3a of the guide rail 3 can be easily attached and detached by operating the fastener 8 (see Figure 4).

[0030] Furthermore, as shown in Figure 21, this support frame 10 can be rotated outward from the upright position described above so as to be parallel to the surfaces of the left and right side portions 2a of the seedling-carrying table 2. When folding the left and right side portions 2a of the seedling-carrying table 2, if the triangular support frame 10 remains upright, it will get in the way of the guide rails 3 and the central side portion 2b of the seedling-carrying table 2, so it can be unfolded outward so as not to get in the way.

[0031] That is, as shown in Figure 20, the side 10b of the triangular support frame 10 facing the seedling tray 2 is composed of a slender rod 10b that is long upward and extends slightly downward. As shown in Figures 22 and 23, the lower end 10b1 of the rod 10b is rotatably supported by a bracket 11 fixed to the seedling tray 2, and a protrusion 10b2 is welded to a position slightly above the lower end 10b1 of the rod 10b, with a convex portion protruding downward from the underside of the tip of the protrusion 10b2. In addition, a guide piece 12 is welded to a position slightly above the bracket 11 fixed to the seedling tray 2. Two holes 12a1 and 12a2 are drilled in this guide piece 12. The guide piece 12 is located below the protrusion 10b2.

[0032] The shape and size of the protrusions on the lower surface of the tip of the protruding piece 10b2 are such that they can fit into the holes 12a1 and 12a2. Reference numeral 13 denotes a reinforcing plate for the triangular support frame 10.

[0033] As shown in Figure 26, this rod member 10b has a spring 14 fitted to its upper end, allowing it to 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, which was engaged with either the hole 12a1 or 12a2 of the guide piece 12, comes out, allowing the triangular support frame 10 to be deployed outward or closed inward. Simply align the convex portion with the hole 12a1 or 12a2 on the side you want to position and then lower the rod member 10b. Hole 12a1 is a hole for positioning when deployed outward, and hole 12a2 is a hole for positioning when the frame is installed upright for work.

[0034] Furthermore, Figure 25 shows that a dew-cleaning rod 15 for holding down and sorting seedlings to some extent is inserted and stored using the open hole 12a2 (see Figure 23). That is, when the left and right side portions 2a of the seedling-carrying table 2 are folded when not in use, the support frame 10 is deployed outward as described above, and as a result, the protrusions come out of the hole 12a2, leaving the hole 12a2 empty. The empty hole 12a2 can then be used to store the dew-cleaning rod 15, as shown in Figure 25.

[0035] In this way, when work is to be carried out, the triangular support frame 10 cannot be erected without removing the dew removal rod 15, so that it is possible to prevent forgetting to attach the dew removal rod 15 to its original position.

[0036] For this purpose, the thickness of the part of the demolition rod 15 that is inserted into the hole 12a2 must be smaller than the diameter of the hole 12a2.

[0037] Next, Figure 27 is a perspective view from the rear showing the seedling tray 2 with the left and right side sections 2a folded in. Figure 28 is a schematic view from the bottom of the rear. Here, 16 is a folding shaft frame, which is erected on the seedling tray 2, and the left and right side sections 2a can be folded inward around the shaft 16a.

[0038] As shown in Figure 28, a regulating rod 17 is fixed in an upright position on the upper outermost side of the left and right side sections 2a, and when the left and right side sections 2a are folded, it stands upright toward the central side section 2b of the seedling-carrying table 2, that is, facing downward. On the other hand, at the position to which the regulating rod 17 moves as it is folded, a receiving rod 18 with a recess at its upper end stands upright, and is designed to receive the lower end of the regulating rod 17 as it moves downward. This regulating rod 17 is an example of a regulating member of the present invention.

[0039] With this structure, when the left and right side portions 2a of the seedling carrier 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, preventing the seedling carrier 2 from colliding with the guide rail 3 surrounded by the decorative member 3c that is folded and placed in that space. The sprayer 4 is stopped between the support posts 6.

[0040] Additionally, to prevent malfunctions in driving the sprayer 4 when it is stored, the following structure is used. That is, of the left and right end portions 3a, power is normally drawn from the right end portion 3a of the sprayer 4. Now, when folding the left and right end portions 3a, or when folding only the right end portion 3a, the power connector is naturally removed before folding, so there is no need to worry about the sprayer 4 moving.

[0041] On the other hand, when folding only the left end 3a without folding the right end 3a, power is supplied to the sprayer 4, so there is a risk that the sprayer 4 may move and fall through the open part of the fold on the left side due to malfunction.

[0042] Therefore, to prevent the sheet from falling, it is desirable to provide a stopper 19 that protrudes when the sheet is folded near the part of the fold that opens when the sheet is folded. For example, in Figures 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 portions 3a side, which abut against each other when the sheet is not folded, and as shown in Figure 15, the stopper 19 can protrude from the vicinity of the end face toward the spreader 4.

[0043] 16(A) and (B) (plan views with hinges 7 omitted), a stopper mechanism is disposed inside central portion 3b near end surface 20. Note that FIG. 16(A) shows the state in which left and right end portions 3a are extended without being folded, and FIG. 16(B) shows the state in which left and right end portions 3a are being folded upward.

[0044] A shaft 22 is disposed inside the central portion 3b and is oriented parallel to the longitudinal direction (left-right direction) of the central portion 3b, and the shaft 22 is held by a holding portion 24 fixed to the central portion 3b so that the shaft 22 can slide left and right. Furthermore, a flange portion 23 is fixed midway along the shaft 22, and a compression spring 25 is provided between the flange portion 23 and the holding portion 24. Therefore, when no external force is applied, the shaft 22 protrudes outward from the hole 20a in the end face 20 as shown in FIG. 16(B).

[0045] Furthermore, a rod-shaped stopper 19 is disposed near the center of the shaft 22. This stopper 19 is rotatably supported by a fulcrum 26 fixed to the central portion 3b. Furthermore, 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 31 at the lower end of the stopper 19, pulling the extension 31 at the lower end. The right end of the shaft 22 can abut against the center of the stopper 19. However, in the state shown in FIG. 16(B), no force is received from the shaft 22, so the stopper 19 rotates counterclockwise in the drawing due to the tension 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, preventing movement of the sprayer 4.

[0046] In contrast, as shown in Figure 16(A), when the left and right end portions 3a are not folded, the end faces 21 of the left and right end portions 3a push the left end of the shaft 22, so that the right end of the shaft 22 pushes the center of the stopper 19 to the right. As a result, the tip 19a of the stopper 19 rotates clockwise and retracts inward from the slit 30, so that the movement of the spreader 4 is not blocked.

[0047] In this way, when the stopper 19 is in the protruding state, even if the spreader 4 moves, it is stopped there and prevented from falling.

[0048] 16, the outer edge 30a of the slit 30 is positioned so that it will come into contact with the stopper 19 when the stopper 19 protrudes perpendicularly to the surface of the guide rail 3. This ensures safety even if the spreader 4 tries to fall out, as the stopper 19 that the spreader 4 has hit will come into contact with the outer edge of the slit 30 and will not physically move out any further.

[0049] Regardless of whether or not the sprayer 4 is energized, it is desirable that the stopper mechanism be provided on both the left and right sides for safety reasons.

[0050] The operation of the rice transplanter of this embodiment will be described below.

[0051] When performing trial feeding or work, move the sprayer 4 from the right end to the left end from any position as shown in Figure 29, and finally move it to the center position on the left and right of the seedling loading table 2 and stop it there.

[0052] In contrast, when storing the sprayer 4, as shown in FIG. 30, the sprayer 4 is moved from the right end to the left end and finally moved to a position shifted from the center position and stopped. That is, the sprayer 4 is stopped in a location where no support column 6 is erected. As described above, the guide rail 3 surrounded by the decorative member 3c is rotated forward by about 30 degrees during storage, and it is necessary to prevent the sprayer 4 from colliding with the sub-column 6d where the support column 6 is located. In this embodiment, the support column 6 is located in the center, so in such a case, the sprayer 4 is stopped in a position shifted, for example, 250 mm to the right from the center position. If the support column 6 is not located in the center position, the sprayer 4 is stopped in a position shifted from the location of the support column 6 and the sub-column 6d facing it.

[0053] Next, as shown in Figure 18(A), the outer ends 3a1 of the left and right end portions 3a are disconnected from the tip 10a of the support frame 10. That is, the fastener 8 shown in Figure 4 is removed by hand, and then the fasteners 8 shown in Figures 5 and 6 are also removed by hand. After this, as shown in Figures 9, 10, and 18(B), the left and right end portions 3a are folded and fixed to the upper surface of the center portion 3b with the fastener 8.

[0054] Next, the guide rail 3, now surrounded by the decorative member 3c, is folded forward, i.e., toward the seedling tray 2. Specifically, as shown in Figures 13, 14, and 17, the support pillar 6 supporting the guide rail 3 is tilted forward around the support shaft 2d. To do this, loosen the knob bolt 6e that had been fixed in place and rotate the arm 6c forward. At this time, the elongated hole 6c1 of the arm 6c is guided along the tip 6d1 of the sub-pillar 6d erected on the seedling tray 2.

[0055] Thereafter, when the support column 6 reaches the rear end of the elongated hole 6c1, the knob bolt 6e is retightened to fix the support column 6 in that position. That is, the guide rail 3 surrounded by the decorative member 3c is fixed in a position where it is tilted forward.

[0056] Next, as shown in Figures 21, 23, and 24(B), the support frames 10 on both the left and right sides are opened outward. Specifically, first, the rod member (side) 10b in Figure 20 is manually lifted against the spring 14 as shown in Figure 26. As a result, the protrusion formed on the underside of the protruding piece 10b2, which had been welded to the lower end 10b1 of the rod member 10b, as shown in Figure 22, is removed from the outer hole 12a2 of the guide piece 12 fixed to the seedling tray 2. While the rod member 10b is still lifted, the support frame 10 is opened outward until the protrusion reaches the inner hole 12a1 of the guide piece 12. The rod member 10b is then released, and the spring 14 causes the protrusion to be inserted into the inner hole 12a1.

[0057] This means that when the support frame 10 is open, that is, it is positioned on the same plane as the left and right side portions 2a of the seedling carrying table 2, and when the left and right side portions 2a are folded as described below, there is no risk of interference with the guide rails 3 surrounded by the decorative members 3c, etc.

[0058] When the support frame 10 is opened in this manner, the outer hole 12a2 is opened, and the lower end of the dew sweeper rod 15 that is not used during storage can be inserted into this hole to serve as a temporary storage location, as shown in Figure 25. When working, the dew sweeper rod 15 is returned to its original position, the hole 12a2 is opened, and the rod is used to close the support frame 10.

[0059] Next, as shown in Figures 27 and 28, the left and right side sections 2a of the seedling tray 2 are folded toward the central side section 2b around the shaft 16a of the folding shaft frame 16 (see Figures 12, 13, and 14). At this time, as shown in Figures 2 and 28, the male tips of the regulating rods (regulating members) 17 erected on the left and right side sections 2a come into contact with the female tips of the receiving rods 18 erected on the central side section 2b, ensuring a certain distance. Specifically, the folding shaft frame 16 can be stopped at 175 degrees rather than opening 180 degrees. This prevents the left and right side sections 2a from interfering with the guide rails 3, which are surrounded by the decorative member 3c that was previously folded. This allows for safe storage.

[0060] Conventionally, when the sprayer 4 is located at the center of the vehicle body, a balance move is performed to ensure the levelness of the seedling tray 2. However, as mentioned above, the storage position is offset from the center, so it is desirable to operate the seedling tray 2, start spraying, and perform the balance move after it has reached the center of the vehicle body.

[0061] Furthermore, in the above embodiment, as shown in each figure, three sets of support pillars 6, arms 6c, sub-pillars 6d, etc. are provided, one in the center and one on each side, but this is not limited to this, and two or four or more sets may also be used. [Industrial Applicability]

[0062] The present invention relates to a rice transplanter equipped with a seedling carrier for planting seedlings, and is ideal for rice transplanters because it can prevent the seedling carrier from protruding backward when folded. [Explanation of symbols]

[0063] 1. Body 2 seedling trays 2a Left and right sides 2b Central side 2c bracket 2d spindle 20 Center end face 20a hole 21 End faces of both ends 3 Guide rails 3a Left and right ends 3b central part 3c Decorative materials 4 Spreader 5. Chemical spraying device 6 Support column 6a top end 6b Bottom edge 6c Arm 6d sub-post 6e Connector (knob bolt) 7 Hinge 8 zipper closure 9 racks 10 Support Frame 10a tip 10b Side (bar member) 11 Bracket 12 Guide strip 13 Reinforcement plate 14 Spring 15 Dewplow 16 folding axis frame 16a axis 17 Regulatory member (regulatory rod) 18 Receiving rod 19 Stopper

Claims

1. A seedling carrier (2) is installed at the rear of the vehicle body (1), and one or both of the left and right side portions can be moved to the center side portion and folded; The system comprises a guide rail (3) arranged in the left-right direction along the seedling loading table (2), and a chemical spraying device (5) having a sprayer for applying chemicals that moves left and right on the guide rail (3), Either one or both of the left and right ends of the guide rail (3) can be moved to the center of the guide rail (3) and folded; The center of the guide rail (3) is supported by a support post (6) that is erected on the seedling tray (2) so as to be movable in the front-rear direction. When folding the seedling carrying tray (2), first either or both of the left and right ends of the guide rail (3) are folded, and the support pole (6) is rotated forward compared to its normal position, and then the seedling carrying tray (2) is folded so that the folded guide rail (3) is sandwiched between either or both of the left and right sides of the folded seedling carrying tray (2) and the central side of the seedling carrying tray (2).

2. A rice transplanter as described in claim 1, wherein a regulating member (17) is provided to restrict movement for folding to a predetermined position to prevent the seedling loading platform (2) from contacting the guide rail (3) or its accessories when either or both of the left and right side portions of the seedling loading platform (2) are folded to the central side portion.

3. The rice transplanter according to claim 2, characterized in that the seedling carrying platform (2), which can be folded by moving either one or both of the left and right sides, is configured to rotate to the central side by a rotation mechanism, and the rotation angle by the rotation mechanism is more than 90 degrees but less than 180 degrees.

4. Either one or both of the left and right ends of the guide rail (3) are detachably supported by a support frame (10) movably erected on either one or both of the left and right sides of the folded seedling tray (2), A rice transplanter as described in any one of claims 1 to 3, wherein when the guide rail (3) is folded, the support frame (10) is separated from either or both of the left and right ends of the guide rail (3), and the support frame (10) moves to retract from the upright state, and then either or both of the left and right sides of the seedling carrying table are folded.

Images