Seedling transplanter for multiple planting

Abstract

To make it possible to easily perform move-traveling or storage to a barn by folding left and right parts of a seedling-carrying part into the center and narrowing a machine body width in a seedling transplanter for multiple planting provided with a spraying apparatus.SOLUTION: In a seedling transplanter for multiple planting where a rear part of a vehicle body 2 is provided with a seedling-carrying part 80 and a seedling planting part 4 and a spraying apparatus 25 is provided on the seedling-carrying part 80, the spraying apparatus 25 is lifted up once and held, and seedling loading end parts 80R, 80L on both left and right sides with respect to a center seedling-carrying part 80C are overlapped, and can be held together with the spraying apparatus 25 lowered onto the center seedling-carrying part 80C.SELECTED DRAWING: Figure 10

Description

[Technical field]

[0001] The present invention relates to a seedling transplanter for multiple row planting that is equipped with a planting unit consisting of a seedling carrying section and a planting mechanism at the rear of the running body, and is configured so that the left and right outer ends of the wide planting unit can be folded toward the center. [Background technology]

[0002] Seedling transplanters travel by picking up individual seedlings from a seedling mat loaded on the seedling carrier mounted at the rear of the vehicle in the seedling planting section and transplanting them into the field, but some seedling transplanters are equipped with a wide seedling carrier to improve transplanting efficiency and can transplant eight or more rows of seedlings at the same time.

[0003] As described in Patent Gazette No. 5293111 (Patent Document 1), this seedling transplanter for multiple row planting is wide so that the left and right ends of the seedling carrier can be folded toward the center when moving it on the road. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5293111 Summary of the Invention [Problem to be solved by the invention]

[0005] In recent years, a spraying device has been installed on the top of the seedling carrier to spray herbicides and fertilizers when transplanting seedlings, but when a spraying device is installed, the seedling carrier cannot be folded.

[0006] To provide a seedling transplanter for multiple row planting equipped with a spraying device, the left and right sides of a seedling carrying section can be folded toward the center to narrow the width of the machine body, thereby facilitating transportation and storage in a barn. [Means for solving the problem]

[0007] The above object of the present invention can be achieved by the following technical means.

[0008] The invention of claim 1 is a seedling transplanter for multiple row planting, which has a seedling carrying section 80 and a seedling planting section 4 at the rear of the vehicle body 2, and further has a spraying device 25 on the seedling carrying section 80, and is characterized in that the spraying device 25 is once lifted upward and held thereon, and the seedling carrying ends 80R, 80L on both the left and right sides are stacked on top of the central seedling carrying section 80C, so that it can be held together with the spraying device 25 which has been lowered onto the central seedling carrying section 80C.

[0009] The invention of claim 2 is a seedling transplanter for multiple row planting as described in claim 1, characterized in that the left and right seedling carrying ends 80R, 80L of the seedling carrying section 80 can be moved forward and backward of the central seedling carrying section 80C, making it possible to hold the spraying device 25 in a clamped position between the front and rear.

[0010] The invention of claim 3 is a seedling transplanter for multiple row planting as described in claim 1, characterized in that after one side of the left and right seedling carrying end parts 80R, 80L is overlapped with the central seedling carrying part 80C, the spraying device 25 is lowered and the other side of the left and right seedling carrying end parts 80R, 80L is overlapped on top of it so that it can be held. Effect of the Invention

[0011] In the invention of claim 1, the left and right seedling carrying ends 80R, 80L of the seedling carrying section 80, which has width on the left and right, and the spraying device 25 are folded and stacked onto the central seedling carrying section 80C, thereby narrowing the left and right width of the seedling transplanter, improving left and right balance, stabilizing travel, and making it easier to store in a barn.

[0012] In the invention of claim 2, the left and right seedling carriers 80R, 80L sandwich the spraying device 25 on the front and rear of the central seedling carrier 80C, and the machine body is only slightly longer from front to rear, resulting in good left and right balance of the machine body.

[0013] In the invention of claim 3, the seedling carrier 80 is elevated on the central seedling carrier 80C by the left and right seedling carriers 80R, 80L and the spraying device 25, but the width of the left and right machine bodies is narrow, making it easy to store in a barn. [Brief description of the drawings]

[0014] [Figure 1] FIG. 2 is a right side view of the riding seedling transplanter according to the embodiment of the present invention. [Diagram 2] FIG. 2 is a plan view of the riding seedling transplanter. [Diagram 3] FIG. 2 is a plan view with part of the seedling planting section omitted. [Figure 4] A side cross-sectional view of the lower part of the seedling carrying section. [Diagram 5] FIG. 4 is a view taken along the arrow A in FIG. [Figure 6] This is a side view of the seedling carrying section showing the left and right seedling carrying sections folded up. [Figure 7] 6 is a partially omitted view taken along the arrow A in FIG. 5. [Figure 8] A cross-sectional view of the upper connection part between the central seedling loading section and the left and right seedling loading sections. [Figure 9] A cross-sectional view of the lower connection part between the central seedling loading part and the left and right seedling loading parts. [Figure 10] This is a side view showing the spraying device attached and the left and right seedling carrying sections folded. [Figure 11] This is a side view of the spraying device being pushed back and the left and right seedling carrying sections being folded. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figures 1 and 2 show a riding seedling transplanter as an application example of the present invention. This riding seedling transplanter 1 has a 10-row seedling planting section 4 mounted on the rear of a vehicle body 2 via a lifting link device 3 so that it can be raised and lowered, and a spraying device 25 is provided above the seedling planting section 4 via a slide rail 25L.

[0016] The vehicle body 2, which is a four-wheel drive vehicle, has a transmission case 10 at the front of the body, front wheels 14, 14 attached to front wheel final cases 10a, 10a provided on the left and right sides of the transmission case, the front end of a main frame 15 is fixed to the rear part of the transmission case 10, and main rear wheels 20, 20, auxiliary inner rear wheels 21, 21 and auxiliary outer rear wheels 22, 22 are attached to rear wheel gear cases 19, 19 supported so as to be free to roll on the rear end of the main frame.

[0017] The engine E is mounted on the main frame 15, and the rotational power of the engine is transmitted to the transmission case 10 by the first belt transmission device and the second belt transmission device. The rotational power transmitted to the transmission case 10 is changed in speed by the transmission in the case, and then separated into running power and working power and taken out. The running power is transmitted to the front wheel final cases 10a, 10a to drive the front wheels 14, 14, and is also transmitted to the rear wheel gear cases 19, 19 to drive the rear wheels 20, 21, 22. The working power is transmitted to the planting clutch case provided at the rear right side of the body 2 via the working transmission shaft, and then transmitted to the seedling planting section 4 by the planting transmission shaft, and transmitted to the spraying device 25 by the spraying transmission mechanism.

[0018] The upper part of the engine E is covered with an engine cover 30a, and the pilot's seat 13 is installed on top of it. In front of the seat 13 is a front cover 32a that houses various operating mechanisms, and above that is provided a handle 33 for steering the front wheels 14, 14. The lower left and right sides of the engine cover 30a and the front cover 32a form main steps 35 on which people can walk. In addition, extended steps 36, 36 are provided on the outer left and right sides of the rear part of the main step 35 at approximately the same level as the main step 35. And footrests 37, 37 for climbing up and down are provided on the outer lower parts of the extended steps 36, 36. Furthermore, rear steps and auxiliary rear steps are provided on the rear sides of the main step 35 and the extended steps 36, 36 at approximately the same height as the rear parts of these steps. The auxiliary rear steps can be folded inward for storage.

[0019] The lifting link device 3 has an upper link 51 and a lower link 52, 52 rotatably attached to a link base frame 50 fixed to the rear end of the main frame 15, and a vertical link 53 connected to the rear ends of these links 51, 52, 52. A rolling shaft provided on the seedling planting unit side is rotatably inserted and connected to a bearing protruding rearward from the lower end of the vertical link 53, and the seedling planting unit 4 is mounted so as to roll freely around the rolling shaft. When a lifting hydraulic cylinder 56 provided between the main frame 15 and a swing arm 57 integrated with the upper link 51 is extended or retracted, the upper link 51 and the lower links 52, 52 rotate up and down, and the seedling planting unit 4 rises and falls while maintaining an almost constant posture.

[0020] The seedling planting section 4 is equipped with a transmission case 60 that also serves as a frame, a seedling carrier 80 that carries seedlings and moves back and forth to supply seedlings one by one to a specified seedling opening, a planting device 200,... that plants the seedlings supplied to the seedling opening in the field, a float 210,... that slides on the muddy surface to level the ground prior to planting the seedlings, etc. In order to reduce the left-right width when stored, each section of the seedling planting section 4 including the seedling carrier 80 is divided into a central seedling carrier 80C and left and right seedling carriers 80R, 80L, and the left and right seedling carriers 80R, 80L are stacked on top of the central seedling carrier 80C.

[0021] Furthermore, the spraying device 25 is arranged to move left and right in the opposite direction to the left and right movement of the seedling carrying part 80 by the spraying guide 25L provided in the width direction at the top of the seedling carrying part 80. The spraying guide 25L can be folded in three parts together with the seedling carrying part 80, and the spraying device 25 consisting of a tank for storing fertilizer and herbicide is supported by a link from the spraying guide 25L, and is lifted and moved backward when the left seedling carrying part 80L is folded, and is sandwiched and moved upward when the left seedling carrying part 80L and the right seedling carrying part 80R are folded (Figs. 10 and 11). It is also possible that the spraying device 25 moves to the front of the center when the left seedling carrying part 80L is folded, and moves to the rear of the center when the right seedling carrying part 80R is folded, so that it is sandwiched between the left seedling carrying part 80L and the right seedling carrying part 80R from front to back.

[0022] The structure for folding the left and right ends of the seedling carrier 80 will be described with reference to Figs.

[0023] The partition wall 81-4, which separates the third seedling placement section 80-3 from the left and the fourth seedling placement section 80-4 from the right, is divided into an inner section 81a and an outer section 81b, with the inner section 81a being formed integrally with the central seedling placement sections 80-4 to 80-8, and the outer section 81b being formed integrally with the three seedling placement sections 80-1, 80-2, and 80-3 on the left outer side. This partition wall 81-4 is formed higher than the other partition walls except for the partition wall 81-9 with respect to the seedling placement surface. A single rotating shaft 121 is inserted into cylindrical portions 120a, 120b, ... formed at the upper ends of both the inner and outer portions 81a, 81b, and the three seedling carrying portions 80-1, 80-2, 80-3 on the left outer side are inverted upward and inward around this rotating shaft 121, and these portions are folded so that they overlap on top of the fourth to sixth seedling carrying portions 80-4, 80-5, 80-6 from the left side. Concave support pillar receivers 122,... are fixed to the tops of the supports 117,... provided on the fifth to seventh partition walls 81-5, 81-6, 81-7 from the left, and when the three left outer seedling carrying sections are folded up, the tops of the supports 117,... provided on the partition walls 81-1, 81-2, 81-3 engage with these support pillar receivers 122,...

[0024] The partition wall 81-9, which separates the second seedling placement section 80-9 from the right and the third seedling placement section 80-8, is divided into an inner section 81a and an outer section 81b, with the inner section 81a being formed integrally with the central seedling placement sections 80-4 to 80-8, and the outer section 81b being formed integrally with the two seedling placement sections 80-9 and 80-10 on the right outer side. This partition wall 81-9 is formed higher than the partition wall 81-4 with respect to the seedling placement surface. A single rotating shaft 121 is inserted through the cylindrical sections 120a, 120b, ... formed at the upper ends of both the inner and outer sections 81a, 81b, and the two seedling carriers 80-9, 80-10 on the right outer side are inverted upward and inward around this rotating shaft 121, and folded so that they overlap the third and fourth seedling carriers 80-7, 80-8 from the right. A concave support post receiver 122 is fixed to the bottom surface of the leftmost partition wall 81-1, and the top of the support post 117 provided on the rightmost partition wall 81-11 engages with this support post receiver 122 when the two seedling carriers on the right outer side are folded. Further, the top of the support pillar 117 provided on the partition wall 81-8 and the top of the support pillar 117 provided on the partition wall 81-10 are connected by an auxiliary support pillar 123 to support the seedling carrying parts 80-9 and 80-10.

[0025] Regarding the arrangement of the cylindrical parts, the cylindrical parts 120a corresponding to the inner part 81a and the cylindrical parts 120b corresponding to the outer part 81b are arranged in three sets, one above the other, in the order of 120b, 120a, 120b, 120a, 120a, 120b from the top. There is no gap between the upper two sets of cylindrical parts 120a, 120b, but a gap S is provided between the lowest cylindrical parts 120a, 120b. This is for the following reason. That is, since the L-shaped main body part 83b of the seedling receiving plate 83 has an acute angle in a side view, the left outer three seedling carrying parts 80-1, 80-2, 80-3 and the right outer two seedling carrying parts 80-9, 80-10 cannot be turned over in their original position, and the seedling carrying parts are turned over in a state where they are pushed up by the gap S along the inclination of the seedling carrying parts to avoid interference with the L-shaped main body part 83b.

[0026] 8 denotes the horizontal frame, which is separated into a central portion 82A and an outer portion 82B near the boundary between the central seedling placement portions 80-4 to 80-8 and the left and right outer seedling placement portions 80-1, 80-2, 80-3 (or 80-9, 80-10). The mounting members 88 are fixed to both left and right ends of the central portion 82A, and a fixing member 124 is fixed to the inner end of the outer portion 82B so as to face the mounting member 88. A round hole 125 is drilled through the fixing member 124 from left to right, and a screw hole 126 is drilled in the mounting member 88 on the extension line of the round hole 125. The fixed rod 127, which has a threaded tip, is inserted from the outside into the round hole 125 of the fixed member 124, and the threaded tip is screwed into the threaded hole 126 of the mounting member 88, thereby fixing the seedling carriers 80-1, 80-2, 80-3 (or 80-9, 80-10) on the left and right outer sides to the seedling carriers 80-4 to 80-8 in the center. A small diameter portion 127a is formed at a suitable position on the fixed rod 127, and when the fixed rod 127 is pulled out of the threaded hole 126 to fold the left and right outer seedling carriers, the tip of the knock pin 128 engages with this small diameter portion 127a, so that the fixed rod 127 does not come out any further. The outer wall surface of the small diameter portion 127a is tapered, so the fixed rod 127 can be pushed in. 129 in the figure is a spring that urges the knock pin 128 toward the fixed rod.

[0027] 9, 131 is a horizontal pipe provided on the upper part of the back surface of the seedling carrier, and this horizontal pipe is also divided into a central part 131A and an outer part 131B near the boundary between the central seedling carrier 80-4 to 80-8 and the left and right outer seedling carriers 80-1, 80-2, 80-3 (or 80-9, 80-10). A male screw member 132 is fitted on the inner end side of the hollow part of the central part 131A. A fixing rod 134 with a screw hole 133 at the tip is inserted into the horizontal pipe 131 from the outside, and the screw hole 133 is screwed into the male screw member 132 to fix the left and right outer seedling carriers 80-1, 80-2, 80-3 (or 80-9, 80-10) to the central seedling carrier 80-4 to 80-8. The mechanism for preventing the fixed bar from falling out is similar to that of the fixed bar 127, and a knock pin 137 biased by a spring 136 is engaged with the small diameter portion 134a of the fixed bar .

[0028] When the seedling carriers on the left and right outer sides are deployed, the central seedling vertical feed device 101A and the left and right outer seedling vertical feed devices 101B are configured to be power-transmitted and connected (see FIG. 6). That is, the roller drive shaft 103aA of the central seedling vertical feed device 101A has a drive arm 107 attached to its inner end via a ratchet mechanism 108, and a drive clutch body 140 with a clutch pawl attached to its outer end. The drive clutch body 140 is engaged with a driven clutch body 141 attached to the outer roller drive shaft 103aB. The driven clutch body 141 is fitted to the outer roller drive shaft 103aB so as to rotate integrally with it, is slidable in the axial direction, and is biased toward the axial end side by a spring 142. Therefore, when the driving clutch body 140 and the driven clutch body 141 are connected, even if the clutch pawls of both clutch bodies butt against each other, the driven clutch body 141 can escape, so that even if the phases of the driving clutch body 140 and the driven clutch body 141 are not aligned, they can be connected smoothly and quickly come into engagement.

[0029] As shown in Figure 3, the seedling carrying section support frame 85 is configured by horizontally mounting a horizontal frame 85b on the top of vertical frames 85a, 85a whose bases are fixed to the unit transmission sections 62-2, 62-4, and pivoting frames 85c, 85c which are rotatably mounted on the left and right ends of the horizontal frame. Rollers 86, 86 supporting the central seedling carrying sections 80-4 to 80-8 are attached to the upper ends of the vertical frames 85a, 85a, and rollers 86, 86 supporting the seedling carrying sections 80-1, 80-2, 80-3 (or 80-9, 80-10) on the left and right outer sides are attached to the tips of the pivoting frames 85c, 85c.

[0030] Figure 10 shows the left seedling loading part 80L and the right seedling loading part 80R folded over the central seedling loading part 80C, sandwiching the spraying device 25, and Figure 11 shows the state in which the spraying device 25 has been moved rearward and the left seedling loading part 80L and the right seedling loading part 80R folded. [Explanation of symbols]

[0031] 2. Body 4 Seedling planting department 25 Spraying equipment 80 Seedling department 80C Central seedling section 80L left seedling end 80R Right seedling end

Claims

1. This seedling transplanter has a seedling carrying section (80) and a seedling planting section (4) at the rear of a vehicle body (2), and further has a spraying device (25) on the seedling carrying section (80), characterized in that the spraying device (25) is once lifted upward and held so that the seedling carrying ends (80R, 80L) on both the left and right sides are stacked on top of the central seedling carrying section (80C), making it possible to hold it together with the spraying device (25) lowered onto the central seedling carrying section (80C).

2. A seedling transplanter for multiple row planting as described in claim 1, characterized in that the left and right seedling carrying ends (80R, 80L) of the seedling carrying section (80) can be moved forward and backward relative to the central seedling carrying section (80C) so that the spraying device (25) can be held in a sandwiched state between the front and rear.

3. A seedling transplanter for multiple row planting as described in claim 1, characterized in that after one side of the left and right seedling carrying ends (80R, 80L) is overlapped with the central seedling carrying part (80C), the spraying device (25) is lowered and the other side of the left and right seedling carrying ends (80R, 80L) is overlapped on top of it so that it can be held.

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