JP2021093941A - Seedling transplanter - Google Patents

Abstract

To provide a seedling transplanter capable of easily performing loading of seedlings to supply of seedlings to a seedling tank.SOLUTION: A seedling transplanter comprises: a travel vehicle body (2) having a travel unit (3); and a planting part (4) for planting seedlings to a farm field and being coupled to a rear part of the travel vehicle body (2). The travel vehicle body (2) comprises: a steering part (20); and a seedling supply part (5) for supplying seedlings to the planting part (4). The steering part (20) comprises a bonnet part (21) arranged near one side of the travel vehicle body (2) in a width direction. The seedling supply part (5) is arranged near the other side of the travel vehicle body (2) in the width direction, and can mount thereon a seedling tray (6), and has a first transport unit (51) capable of transporting the mounted seedling tray (6) toward the planting part (4).SELECTED DRAWING: Figure 2

Description

The present invention relates to a seedling transplanting machine.

Conventionally, some seedling transplanting machines used for planting seedlings in a field are provided with a spare seedling stand provided with a rotating link mechanism (see, for example, Patent Document 1). The conventional spare seedling mounting table is configured so that a plurality of mounting tables can be switched between a posture in which they are stacked in the vertical direction and a posture in which they are arranged substantially linearly in the front-rear direction.

According to such a configuration, there is an advantage that the work of loading seedlings from the outside of the machine becomes easy because the spare seedling mounting table on the upper or lower stage moves to the front of the machine to form a rail shape by being in the deployed state. ..

Japanese Unexamined Patent Publication No. 2013-165739

However, in the spare seedling stand having the above-mentioned conventional configuration, even if it is easy to load the seedlings from the outside of the machine, the worker can load the seedlings up to the seedling tank of the planting part connected to the rear of the machine. The carrying distance was not short, and the workload of the workers tended to be large.

The present invention has been made in view of the above, and an object of the present invention is to provide a seedling transplanting machine capable of easily performing from loading seedlings to replenishing seedling tanks.

In order to solve the above-mentioned problems and achieve the object, the seedling transplanting machine (1) according to claim 1 is a traveling vehicle body (2) provided with a traveling device (3) and the traveling vehicle body (2). The seedlings are connected to the rear part and provided with a planting part (4) for planting seedlings in the field, and the traveling vehicle body (2) has a control part (20) and a seedling for supplying seedlings to the planting part (4). A supply unit (5) is provided, and the control unit (20) includes a bonnet unit (21) arranged close to one side in the width direction of the traveling vehicle body (2), and the seedling supply unit (5). ) Is arranged closer to the other side in the width direction of the traveling vehicle body (2), and the seedling tray (6) can be placed on the seedling tray (6), and the placed seedling tray (6) is placed on the planting portion (4). ), The first transport device (51) capable of transporting the device (51) is provided.

According to the seedling transplanting machine according to claim 1, it is possible to easily carry out from loading seedlings to replenishing the seedling tank.

FIG. 1 is a schematic plan view of the seedling transplanting machine according to the embodiment. FIG. 2 is a schematic side view of the seedling transplanting machine according to the embodiment. FIG. 3 is a schematic explanatory view of a seedling supply unit included in the seedling transplanting machine according to the embodiment. FIG. 4 is a schematic explanatory view of a seedling tray. FIG. 5 is a schematic explanatory view of a seedling tray according to a modified example. FIG. 6 is a three-view view of the seedling tray according to the embodiment. FIG. 7 is a plan view showing a state in which the seedling trays according to the embodiment are arranged side by side, with some omissions. FIG. 8 is a schematic explanatory view of a seedling transplanting machine provided with a seedling supply unit according to the first modification from a front view. FIG. 9 is a schematic explanatory view of a seedling supply unit according to the first modification. FIG. 10 is an explanatory view in a plan view showing a first modification of the rail body constituting the seedling supply unit according to the embodiment. FIG. 11 is an explanatory view from a side view showing a first modification of the rail body constituting the seedling supply unit according to the embodiment. FIG. 12 is an explanatory view in a plan view showing a second modification of the rail body constituting the seedling supply unit according to the embodiment. FIG. 13 is an explanatory view from a side view showing a second modification of the rail body constituting the seedling supply unit according to the embodiment. FIG. 14 is a schematic plan view of a seedling transplanting machine including a seedling supply unit according to the second modification. FIG. 15 is a schematic side view of the seedling transplanting machine provided with the seedling supply unit according to the second modification. FIG. 16 is a functional block diagram centered on the control unit of the seedling transplanting machine according to the second embodiment. FIG. 17 is a schematic plan view of a seedling transplanting machine including the seedling supply unit according to the second embodiment. FIG. 18 is a schematic side view of the seedling transplanting machine including the seedling supply unit according to the second embodiment. FIG. 19 is an explanatory diagram showing an example of a first drive device in the first transfer device of the seedling supply unit according to the second embodiment. FIG. 20 is an explanatory diagram showing an example of a first drive device in the second transport device of the seedling supply unit according to the second embodiment. FIG. 21 is an explanatory view showing a second drive device of the seedling supply unit according to the second embodiment. FIG. 22 is a schematic explanatory view of the seedling tank of the seedling transplanting machine according to the embodiment in a plan view. FIG. 23 is a schematic explanatory view of the seedling tank of the seedling transplanting machine according to the embodiment from a side view. FIG. 24 is a schematic side view in which a part of the seedling transplanting machine including the seedling supply unit according to the third embodiment is omitted. FIG. 25 is an explanatory view showing a transport state of the seedling tray used in the seedling supply unit according to the third embodiment in a plan view. FIG. 26 is an explanatory view showing a side view of the transport state of the seedling tray used in the seedling supply unit according to the third embodiment. FIG. 27 is an explanatory diagram of a seedling tray used in the seedling supply unit according to the third embodiment. FIG. 28 is a schematic plan view of a fertilizer application device included in the seedling transplanting machine according to the modified example. FIG. 29 is a schematic side view of a fertilizer application device included in the seedling transplanting machine according to the modified example. FIG. 30 is a schematic side view showing the operation of the sub hopper of the fertilizer application device included in the seedling transplanting machine according to the modified example. FIG. 31 is a schematic explanatory view showing a feeding unit of a sub hopper of a fertilizer application device provided in a seedling transplanting machine according to a modified example. FIG. 32 is a schematic plan view of the seedling transplanting machine according to the fourth embodiment. FIG. 33 is a schematic side view of the seedling transplanting machine according to the fourth embodiment. FIG. 34 is a schematic front view of the seedling transplanting machine according to the fourth embodiment. FIG. 35 is an explanatory view showing a fertilizer storage body of a fertilizer supply unit included in the seedling transplanting machine according to the fourth embodiment. FIG. 36 is an explanatory diagram of a fertilizer replenishment operation using a fertilizer storage body in the fertilizer supply unit provided in the seedling transplanting machine according to the fourth embodiment. FIG. 37 is an explanatory diagram showing a first modification of the fertilizer storage body in the fertilizer supply unit included in the seedling transplanting machine according to the fourth embodiment. FIG. 38 is an explanatory diagram showing a second modification of the fertilizer storage body in the fertilizer supply unit included in the seedling transplanting machine according to the fourth embodiment. FIG. 39 is an explanatory diagram showing a third modification of the fertilizer storage body in the fertilizer supply unit included in the seedling transplanting machine according to the fourth embodiment. FIG. 40 is an explanatory diagram showing a fertilizer replenishment operation using the fertilizer storage body according to the third modification in the fertilizer supply unit provided in the seedling transplanting machine according to the fourth embodiment.

Hereinafter, the seedling transplanting machine according to the embodiment of the present invention will be described in detail as a riding type with reference to the drawings. The components in the following embodiments include those that can be easily replaced by those skilled in the art, or those that are substantially the same, that is, those having a so-called equal range. Furthermore, the present invention is not limited to the above-described embodiment, and can be variously modified and implemented without departing from the gist of the present invention. Further, in the following, the entire seedling transplanting machine may be referred to as an airframe.

(First Embodiment)
FIG. 1 is a schematic plan view of the seedling transplanting machine according to the first embodiment, and FIG. 2 is a schematic side view of the seedling transplanting machine. In the following, the front-back direction of the seedling transplanting machine 1 refers to the straight-ahead direction of the seedling transplanting machine 1. Further, the forward direction of the seedling transplanting machine 1 is to advance in the direction from the driver's seat 23 toward the steering wheel 22 in the straight-ahead direction of the seedling transplanting machine 1, and the opposite is the reverse (backward) direction. Further, the front and rear of the seedling transplanting machine 1 are based on the forward direction.

Further, the left-right direction is a direction horizontally orthogonal to the front-rear direction. Here, the left and right are defined toward the "front" side in the front-rear direction. That is, when the operator (operator) arrives at the driver's seat 23 and faces forward, the left hand side is "left" and the right hand side is "right". Further, the vertical direction is a direction orthogonal to the front-rear direction and the left-right direction. Therefore, the front-back direction, the left-right direction, and the up-down direction are orthogonal to each other in three dimensions.

As shown in FIGS. 1 and 2, the seedling transplanting machine 1 according to the present embodiment has a planting portion 4 for planting seedlings in a field connected to the rear portion of the traveling vehicle body 2. The traveling vehicle body 2 includes a traveling device 3 including a front wheel 31 and a rear wheel 32, and a prime mover and a transmission (not shown) for transmitting power to the front wheel 31 and the rear wheel 32.

The planting portions 4 are provided corresponding to a plurality of (six in this case) seedling tanks 41 provided in a row in the width direction of the traveling vehicle body 2 and two seedling tanks 41 and 41 adjacent to each other. It is provided with a planting device 42 for planting 41 seedlings in a field. Further, the planting portion 4 includes a float 43 that slides on the field scene and prepares the ground as the traveling vehicle body 2 moves.

The traveling vehicle body 2 in which the planting unit 4 is connected to the rear portion is provided with a control unit 20 and a seedling supply unit 5 for supplying seedlings to the planting unit 4. As shown in the figure, the control unit 20 is provided with a bonnet portion 21 provided with a steering wheel 22 for steering the front wheels 31 at the front portion of the fuselage, and a cockpit 23 is provided so as to face the bonnet portion 21. Has been done.

On the other hand, the seedling supply unit 5 includes a first transport device 51 and a second transport device 52 arranged in a direction orthogonal to the first transport device 51. Both the first transfer device 51 and the second transfer device 52 include a pair of rail bodies 510 and 520, which will be described later.

Further, as shown in FIG. 2, a fertilizer application device 7 is provided between the driver's seat 23 and the planting portion 4. The hopper 70, which constitutes a part of the fertilizer application device 7, is arranged below the second transfer device 52, which constitutes the seedling supply unit 5.

The bonnet portion 21 is arranged on one side in the width direction of the traveling vehicle body 2, that is, closer to the right side in the traveling direction of the traveling vehicle body 2, and the first transport device 51 is arranged on the other side in the width direction of the traveling vehicle body 2. That is, they are arranged closer to the left side in the traveling direction of the traveling vehicle body 2.

Then, the second transport device 52 extends in the width direction of the machine body in the vicinity of the terminal portion of the first transport device 51. As described above, the first transport device 51 included in the seedling supply unit 5 is arranged on the left side in the width direction of the traveling vehicle body 2 in the front-rear direction of the machine body, and the second transport device 52 is arranged in the width direction of the machine body. Has been done. Therefore, the first transfer device 51 and the second transfer device 52 are arranged in a substantially L shape as shown in FIG.

Both the first transport device 51 and the second transport device 52 can mount the seedling tray 6 on which the seedlings are placed, and can slide and transport the placed seedling tray 6. it can. Here, as the seedling tray 6, for example, a so-called seedling tray that can be taken out from the seedling box by scooping the seedling mat is used.

Further, here, the first transport device 51 can transport the placed seedling tray 6 toward the planting portion 4, that is, toward the second transport device 52. Then, the second transfer device 52 can transfer the seedling tray 6 inherited from the first transfer device 51 to a desired position among the plurality of seedling tanks 41 included in the planting unit 4. The configuration of the seedling tray 6 will be described in detail later.

As described above, a sufficient amount of the first transport device 51 for transporting the seedlings in a straight line toward the planting portion 4 is provided on one side (left side) of the traveling vehicle body 2 in the width direction. While placing the seedling mat as a spare seedling, the load on the operator required for transporting the seedling mat to the planting portion 4 can be greatly reduced.

FIG. 3 is a schematic explanatory view of a seedling supply unit 5 included in the seedling transplanting machine 1 according to the present embodiment, and FIG. 4 is a schematic explanatory view of a seedling tray. Further, FIG. 5 is a schematic explanatory view of a seedling tray according to a modified example. As shown in FIGS. 1 to 3, the first transfer device 51 and the second transfer device 52 of the seedling supply unit 5 each have a pair of rails 51 (52) on which the seedling tray 6 can be placed and moved. ) Is provided.

The rail 51 (52) is composed of a pair of rod-shaped bodies 511 (521) and 512 (522) arranged in parallel with each other, and the rod-shaped bodies 511 (521) located inside the traveling vehicle body 2 are located outside. It is provided at a position lower than the rod-shaped body 512 (522). The height difference between the two rod-shaped bodies 511 (521) and 512 (522) may be set to, for example, about the height of the seedlings.

Therefore, as shown in FIG. 3, the seedling tray 6 mounted on the rail 51 (52) is inclined downward toward the inside of the machine body. Then, if the handle portion 61 of the seedling tray 6 is placed so as to be inside the machine body, the wall plate portion 610 constituting the handle portion 61 becomes the seedling receiving surface, and the seedling mat placed on the seedling tray 6 ( (Not shown) does not have a risk of slipping off the seedling tray 6. In FIG. 3, reference numeral 62 indicates a mounting plate having a seedling mounting surface.

By the way, the rod-shaped bodies 511 (521) and 512 (522) constituting the rail 51 (52) are formed in a pipe shape as shown in FIG. In the present embodiment, although it is a pipe shape, it is not a simple cylindrical shape, but a deformed pipe shape having a plane portion 53, 53 that intersects vertically and a curved surface portion 54 that connects the plane portions 53, 53 to each other. Then, in order to obtain such deformed pipe-shaped rod-shaped bodies 511 (521) and 512 (522), a drawing material such as aluminum (aluminum alloy) is used as the material.

With such a configuration, the rail 51 (52) can be easily and inexpensively formed by processing the flat surface portion 53 and the curved surface portion 54 of the rod-shaped bodies 511 (521) and 512 (522), and the strength can be increased. Can be planned. Further, since the portion of the seedling tray 6 in contact with the mounting plate 62 is the curved surface portion 54, the contact area is small and the seedling tray 6 can be smoothly moved.

Here, the seedling tray 6 will be described. As shown in FIGS. 3 and 4, the seedling tray 6 has a rectangular mounting plate 62 and a handle portion 61 formed at one end of the mounting plate 62. The handle portion 61 is formed by being bent substantially parallel to the mounting plate 62 from the upper end of the wall plate portion 610 that stands substantially perpendicular to the mounting plate 62.

And four protrusions 63 are provided on the back surface of the mounting plate 62. These protrusions 63 are provided so as to be located between the pair of rod-shaped bodies 511 (521) and 512 (522) of the rail 51 (52). Therefore, as shown in FIG. 3, the protruding portion 63 is blocked by the rod-shaped bodies 511 (521) and 512 (522), and the seedling tray 6 does not have a risk of slipping off the rail 51 (52).

The protruding portion 63 of the seedling tray 6 does not need to have a cylindrical shape or a square tubular shape so as to have a rectangular shape when viewed from the front. For example, as shown in FIG. 5, it may have a triangular shape when viewed from the front. That is, the protruding portion 63 shown in FIG. 5 is a front and rear surfaces 631, 631 perpendicularly opposed to the extending direction of the rail 51 (52) and a thick portion of the protruding portion 63, and is a rod-shaped body 511 (521), 512 (522). ) Has an inclined surface 632 that abuts. The slope of the inclined surface 632 is preferably about 30 degrees. In FIG. 5, reference numeral 633 indicates a sharp portion where the two inclined surfaces 632 are in contact with each other.

With such a configuration, even if the seedling tray 6 is placed diagonally on the rail 51 (52) or the protrusion 63 is placed on the rail 51 (52), the inclined surface 632 is a rod-shaped body 511 (521). ), 512 (522), so that the posture of the seedling tray 6 can be easily corrected. Further, for example, when the seedling tray 6 is delivered from the first transport device 51 to the second transport device 52, the seedling tray 6 is rotated 90 degrees, but at that time, the protruding portion 63 hits the peripheral member. However, since the inclined surface 632 also hits, it is easy to correct the posture.

Further, a specific configuration of the seedling tray 6 will be described. FIG. 6 is a three-view view of the seedling tray 6 according to the embodiment, and FIG. 7 is a plan view showing a state in which the seedling tray 6 according to the embodiment is juxtaposed, partly omitted. 6 (a) is a plan view of the seedling tray 6, FIG. 6 (b) is a side view of the seedling tray 6 mounted on the rail 51 (52), and FIG. 6 (c) is a seedling tray. The bottom view of the state where 6 is placed on the rail 51 (52) is shown.

As shown in FIG. 6, the seedling tray 6 has a handle portion 61 and a mounting plate 62 provided with four projecting portions 63 on the back surface, and is moved back and forth between both right end edges of the mounting plate 62. It has side wall portions 64, 64 formed so as to connect the outer portions of the projecting portions 63 to each other. In this way, since the side wall portions 64, 64 are formed so as to connect the protruding portions 63, 63 to each other, it is possible to prevent the bottom plate from bending, and it also functions as a reinforcing member of the seedling tray 6. Become.

As for the dimensions of the seedling tray 6, the outer width W1 including the outer surface of the side wall portion 64 is 300 to 330 mm as one row between the rows, and the inner width W2 which is the width of the mounting plate 62 is adjusted to the seedling mat width. It is good to set it to about 280 mm. Further, the side wall portion 64 is preferably arranged from the front end of the mounting plate 62 to the position L2 having about 1/3 of the total length L to the rear end to the position L1 having about 1/4 of the total length L.

By doing so, in the seedling tray 6, wall surfaces are formed on the three sides of the mounting plate 62 by the wall plate portions 610 of the handle portion 61 and the side wall portions 64 and 64, so that the seedling mat can be reliably secured. Can be held.

Further, when the seedling trays 6 are placed on the rails 51 (52) and arranged side by side, the side wall portions 64, 64 come into contact with each other and are pushed. Therefore, even if the mounting plate 62 is a thin seedling tray 6, the seedling trays 6 may be pressed. It can be reliably pushed from the rail 51 (52) without derailing. Further, since a portion having no wall surface is provided on the peripheral edge, as shown in FIG. 7, even if the side wall portions 64, 64 come into contact with each other, a finger or the like is inserted between the adjacent seedling trays 6, 6. Workability is improved because a gap that can be used is formed.

Further, as also shown in FIG. 7, when the seedling trays 6 are arranged in the second transport device 52 without a gap so that the side wall portions 64, 64 are in contact with each other, the seedling mat is 1: 1 with each seedling tank 41. Since it can be easily moved so as to have a positional relationship corresponding to the above, workability in seedling supply is improved.

(Modified example of seedling supply unit 5)
FIG. 8 is a schematic explanatory view of the seedling transplanting machine 1 provided with the seedling supply unit 5 according to the first modification, and FIG. 9 is a schematic explanatory view of the seedling supply unit 5 according to the first modification. Is. As shown in FIGS. 8 and 9, in the seedling supply unit 5 according to the first modification, the rail body 510 of the first transport device 51 is provided so as to be movable in the width direction of the traveling vehicle body 2.

That is, as shown in the drawing, the inner rod-shaped body 511 and the outer rod-shaped body 512 constituting the rail body 510 are connected by the connecting rod 513, and the connecting rod 513 is provided at the upper end of the support rod 55. It is slidably inserted through 514.

The connecting rod 513 raises both ends of the horizontal portion vertically and provides a difference in the raising height, connects the lower tip to the inner rod-shaped body 511, and connects the higher tip to the outer rod-shaped body 512. It is connected. Therefore, here as well, the inner rod-shaped body 511 located inside the traveling vehicle body 2 is located at a lower position than the outer rod-shaped body 512 located outside.

Further, as shown in FIG. 9, a plurality of connecting rods 513 are provided at predetermined intervals in the front-rear direction of the machine body, and the corresponding support rods 55 and the tubular body 514 of each connecting rod 513 are provided. The base end of each support rod 55 may be fixed to a main frame (not shown) of the traveling vehicle body 2.

By the way, as shown in FIGS. 14 and 15, the seedling supply unit 5 can also be configured to be movable in the front-rear direction. FIG. 14 is a schematic plan view of the seedling transplanting machine 1 including the seedling supply unit 5 according to the second modification, and FIG. 15 is a schematic side view of the seedling transplanting machine 1.

As shown in FIGS. 14 and 15, the seedling supply unit 5 according to the second modification is configured such that the first transfer device 51 moves forward and downward as a whole of the machine body. That is, a joint portion 551 is provided in the middle of the support rod 55 that supports the connecting rod 513 that connects the inner rod-shaped body 511 and the outer rod-shaped body 512 that constitute the rail body 510, and the joint portion 551 is used as a center for supporting the joint portion 551. The rod 55 rotates forward.

With such a configuration, the first transport device 51 can be made to protrude forward of the machine body, so that the tip of the first transport device 51 can be brought closer to the ridge. Moreover, in that case, since the rail body 510 is at a lower position than usual, it becomes easy to replenish the seedlings from outside the field.

Further, when the first transfer device 51 moves forward, the gap between the first transfer device 51 and the second transfer device 52 widens, so that the range in which the worker M (see FIG. 36) can move is also expanded. And workability is improved. Further, when the seedlings are replenished in the seedling tank 41 after the seedlings are placed on the first transfer device 51, if the first transfer device 51 is moved forward, the left end of the second transfer device 52 In addition, since the worker M can easily reach it, the workability of replenishing the seedlings in the seedling tank 41 is also improved.

(Modification example of rail body 510 constituting the seedling supply unit 5)
Next, a modified example of the rail body 510 constituting the seedling supply unit 5 will be described. FIG. 10 is an explanatory view in a plan view showing a first modification of the rail body 510 constituting the seedling supply unit 5 according to the embodiment, and FIG. 11 is an explanatory view in the same side view. Further, FIG. 12 is an explanatory view in a plan view showing a second modification of the rail body 510 constituting the seedling supply unit 5 according to the embodiment, and FIG. 13 is an explanatory view in the same side view. Further, FIG. 14 is a schematic plan view of the seedling transplanting machine 1 including the seedling supply unit 5 having the rail body 510 according to the third modification, and FIG. 15 is a schematic side view of the seedling transplanting machine 1.

As shown in FIGS. 10 and 11, in the first modification, the rail body 510 of the first transport device 51 is higher than the rail body 520 of the second transport device 52 by about the height of the seedlings. Is located in. Then, the rail body 510 of the first transport device 51 is extended to a length that overlaps with the second transport device 52, and the rod-shaped body 512 outside the rail body 510 is outside at a position in front of the second transport device 52. The rear end portion of the rail body 510 is widened to form the widened portion 512a by bending the rail body 510 in a substantially crank shape.

That is, the distance between the unwidened rail bodies 510 is such that there is almost no gap between the protruding portion 63 of the seedling tray 6 and the rod-shaped bodies 511 and 512, and horizontal rotation is not possible, whereas the widened portion 512a Then, even if the seedling tray 6 is rotated 90 degrees in the substantially horizontal direction, the distance between the protruding portion 63 of the seedling tray 6 and the rod-shaped bodies 511 and 512 does not interfere with each other. Therefore, on the rail body 510, the seedling tray 6 can rotate horizontally only in the widening portion 512a.

With such a configuration, for example, when the seedling tray 6 mounted on the first transport device 51 is moved toward the rear of the machine body, the seedling tray 6 can be easily moved in the widening portion 512a in front of the second transport device 52. Can be rotated to change the orientation. Therefore, if the seedling tray 6 is rotated 90 degrees, the seedling tray 6 can be lowered and moved below the rail body 510 without any trouble in the widening portion 512a, and the seedling tray 6 can be easily moved. Can be inherited by the second transfer device 52. As described above, by using the first modification of the rail body 510, the seedling tray 6 can be smoothly moved and inherited, and the workability can be further improved.

Next, a second modification of the rail body 510 will be described. As shown in FIGS. 12 and 13, even in the second modification, the rail body 510 of the first transport device 51 is higher than the rail body 520 of the second transport device 52 by about the height of the seedlings. It is arranged like this. Then, the rail body 510 of the first transport device 51 is bent at a right angle from the front of the second transport device 52 while forming an R shape, and the tip portion of the rail body 510 is the rail body 520 of the second transport device 52. It is designed to overlap the upper position of.

With this configuration, for example, when the seedling tray 6 mounted on the first transport device 51 is moved toward the rear of the machine body, the rail of the second transport device 52 is changed by 90 degrees as it is on the rail body 510. It reaches the upper position of the body 520. Then, the seedling tray 6 can be easily moved downward from the tip of the rail body 510 and inherited to the second transport device 52. As described above, even if the second modification of the rail body 510 is used, the seedling tray 6 can be smoothly moved and inherited, and the workability can be further improved.

(Second embodiment)
Next, the seedling transplanting machine 1 according to the second embodiment will be described with reference to FIGS. 16 to 21. The second embodiment is different from the first embodiment in that the seedling supply unit 5 manually moves the seedling tray 6 in the first embodiment, whereas the second embodiment is different from the first embodiment. Then, the seedling tray 6 can be automatically moved.

First, a control unit 9 provided in the seedling transplanting machine 1 for automating the seedling supply unit 5 will be described. FIG. 16 is a functional block diagram centered on the control unit 9 of the seedling transplanting machine 1 according to the second embodiment. Further, FIG. 17 is a schematic plan view of the seedling transplanting machine 1 including the seedling supply unit 5 according to the second embodiment, and FIG. 18 is a schematic side view of the seedling transplanting machine 1.

As shown in FIG. 16, the control unit 9 includes a control device 91 and a storage device 92. The control device 91 has a CPU (Central Processing Unit) and the like. The storage device 92 includes a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and stores a computer program for controlling the entire operation of the seedling transplanting machine 1 including the driving of the seedling supply unit 5. There is. By reading such a computer program, the control device 91 performs a predetermined process.

The control unit 9 can control the operation of the traveling device 3 and the planting unit 4 serving as a working machine. For example, the operation of various operating tools in the control unit 20 is detected, the traveling device 3 is driven according to the operation content, and the planting unit 4 is driven. Although not shown, the control unit 9 can control not only the traveling device 3 and the planting unit 4, but also various electrically driven devices included in the seedling transplanting machine 1. The control unit 9 in the present embodiment performs drive control of the seedling supply unit 5 on the condition that each device of the traveling device 3 and the planting unit 4 is stopped. Therefore, there is no possibility that the seedlings will fall out of the seedling supply unit 5 due to vibration of the traveling vehicle body 2.

The control unit 9 is connected to a switch group 5500 composed of a plurality of switches appropriately provided in the seedling supply unit 5, a first drive device 5600, a second drive device 5620, and a third drive device 5630. .. As will be described later, each switch of the switch group 5500 can detect the position of the seedling tray 6 in the seedling supply unit 5 and the seedling tank 41. The first drive device 5600 and the second drive device 5620 are motors that drive rails, belts, and the like on which the seedling tray 6 is placed in the seedling supply unit 5. The first drive device 5600 can convey the seedling tray 6 by a predetermined distance, and the second drive device 5620 can send the seedling tray 6 to the seedling tank 41. The third drive device 5630 is provided in the fertilizer supply unit 8 to be described later, and includes a motor or the like used when transferring fertilizer to the fertilizer application device 7.

As shown in FIGS. 17 and 18, the seedling transplanting machine 1 according to the second embodiment has the same basic configuration except that the seedling feeding unit 5 capable of automatically moving the seedling tray 6 is provided. .. That is, the seedling transplanting machine 1 according to the present embodiment has a first transport device 5100 arranged closer to the left side in the traveling direction of the traveling vehicle body 2 and a plurality of directions orthogonal to the first transport device 5100, that is, a plurality of them. It is arranged along the seedling tank 41 and includes a second transfer device 5200.

The first transport path 5101 and the second transport path 5102 are provided with the first drive device 5600, and the second transport path 5102 is further provided with the second drive device 5620. With this configuration, the second transport device 5200 inherits the seedling tray 6 sent from the front to the rear of the machine by the first transport device 5100, and transports the seedling tray 6 to a predetermined position of the seedling tank 41 in the lateral direction of the machine.

As shown in FIG. 17, the first transport device 5100 has two rails 5110 and 5110 that form two transport paths arranged next to each other, and can transport two seedling trays 6 at the same time. In this case, two rails 5110 and 5110 are provided to form two transport paths, but a single transport path may be used.

Further, the second transport device 5200 includes a tray frame 5220 on which two seedling trays 6 can be placed at the same time. The tray frame 5220 includes an endless belt 5401 that is driven by a motor 5602 (see FIG. 20), which will be described later, to convey the seedling tray 6.

Further, as shown in FIG. 18, the seedling tank 41 of the planting portion 4 is configured so that the upper end thereof can be raised to a seedling inheritance position close to the second transport device 5200. The raising operation of the seedling tank 41 may be performed by a predetermined switch operation by the worker M, or for example, according to the program of the "automatic seedling replenishment mode" set in the seedling transplanting machine 1, the control unit 9 In some cases, the operation is controlled in conjunction with the operation of the seedling supply unit 5.

A switch for activating the "automatic seedling replenishment mode" may be provided at an appropriate position on the control unit 20 so that the "automatic seedling replenishment mode" can be selected by operating the switch of the operator M. In the "automatic seedling replenishment mode", the driving of the traveling device 3 is naturally stopped, and the driving of each device of the planting unit 4 is also controlled to be stopped. The control unit 20 may be provided with a seedling shortage alarm such as a buzzer or a lamp for notifying the seedling shortage of the seedling tank 41 or the seedling shortage in the seedling supply unit 5. At this time, it is also possible to identify the location where the seedlings are cut by the buzzer sound of the seedling cut alarm or the difference in the lamp color.

By the way, in the second embodiment, the first transfer device 5100 may be referred to as a front seedling tank having a function of a belt conveyor, and similarly, the second transfer device 5200 may be referred to as a connected seedling tank having a function of a belt conveyor. ..

The seedling supply unit 5 according to the present embodiment will be described more specifically with reference to FIGS. 19 to 21. FIG. 19 is an explanatory diagram showing an example of a first drive device in the first transfer device 5100 of the seedling supply unit 5 according to the second embodiment. FIG. 20 is an explanatory diagram showing an example of a first drive device in the second transport device 5200 of the seedling supply unit 5 according to the second embodiment. Further, FIG. 21 is an explanatory view showing a second driving device of the seedling supply unit 5 according to the second embodiment.

As shown in FIG. 19, in the first transfer device 5100, which is a front seedling tank, two transfer paths 5101, 5102 arranged side by side are configured by a plurality of endless belts 5400, respectively. Here, the transport paths 5201 and 5202 configured by the belt drive may be referred to as rails 5110 (see FIG. 17).

As shown in FIG. 19, detection switches 5501 to 5504 constituting the switch group 5500 are appropriately arranged in the transport paths 5201 and 5202 to detect the passage of the seedling tray 6. Based on the detection result of each switch 5501 to 5504, the control unit 9 can drive and control the first drive device 5600, that is, the motors 5601 to 5603, and send the seedling tray 6 backward by a necessary distance. The rotating shafts of the motors 5601 to 5603 mesh with the sprocket 5700 attached to the belt drive shaft 5701. In the figure, reference numeral 5702 indicates a support shaft arranged to face the belt drive shaft 5701, and rotationally supports the belt 5400 together with the belt drive shaft 5701.

Further, as shown in FIG. 20, the second transport device 5200, which is a connected seedling tank, includes a frame body serving as a rail constituting the transport path 5201, and the tray frame 5220 is movably supported on the frame body. There is. A roller 5221 that is rotationally driven by a motor 5602, which is an example of the first driving device, is attached to the lower surface of the tray frame 5220, and the roller 5221 moves the frame body.

Further, the frame body is provided with switches 5506 at appropriate intervals (for example, every two rows) at the rear end. That is, in the case of Article 6, two switches 5506 (see FIG. 20b) are provided. Based on the detection result of the switch 5506, the control unit 9 controls the drive of the motor 5602 to stop the tray frame 5220 at a desired position. That is, the switch 5506 on the left side stops at the 1st and 2nd rows on the left side, and both switches 5506 and 5506 stop at the 3rd and 4th rows in the center, and the switch 5506 and 5506 on the right side stops at the 5th and 6th rows on the right side. When it is detected that the switch 5506 is pressed, the control unit 9 stops the motor 5602. In this way, the control unit 9 can stop the tray frame 5220 at a position where the seedlings can be accurately put into the seedling tank 41. As shown in FIG. 20a, switches 5506 may also be provided on the terminal side to provide a total of three switches. In this case, for example, when the terminal switch 5506 is pressed, the control unit 9 may control the frame body to return to the initial position (left side).

Further, the second transfer device 5200 includes a motor 5621 which is a second drive device for moving the seedling tray toward the seedling tank 41 which has risen to the seedling inheritance position. That is, as shown in FIG. 21, the motor 5621, which is an example of the second drive device 5620, is attached to the tray frame 5220 included in the second transport device 5200, and the endless belts 5401 and 5401 rotated by the motor 5621. Is provided. That is, two belts 5401 for two rows are arranged side by side on the tray frame 5220, and these two belts 5401 and 5401 are also simultaneously driven by one motor 5621 in the same manner as the first transfer device 5100. .. The rotating shaft of the motor 5621 meshes with the sprocket 5610 attached to the belt drive shaft 5615. In the figure, reference numeral 5616 indicates a support shaft provided facing the belt drive shaft 5615 and supporting the belt 5401.

Further, a switch 5505 is provided in the lower part on the back side of the second transport device 5200 (see FIG. 23), and when the switch 5505 is turned on, the seedling tank 41 has risen to a predetermined seedling inheritance position. Detects and drives the motor 5621 to move the tray frame 5220 toward the width of the machine body, and supplies the seedling tray 6 in the tray frame 5220 so as to naturally drop into a predetermined seedling tank 41.

Here, the seedling tank 41 provided in the planting portion 4 of the seedling transplanting machine 1 will be briefly described. FIG. 22 is a schematic explanatory view of the seedling tank 41 of the seedling transplanting machine 1 according to the embodiment in a plan view, and FIG. 23 is a schematic explanatory view of the seedling tank 41 in a side view. In FIG. 22, the upper part of the drawing corresponds to the upper part of the seedling tank 41 in FIG.

As shown in FIG. 22, in the seedling tank 41, an endless transport belt 413 is arranged so that the seedling mat can be transported downward (rearward) in the area partitioned for each row. The transfer belt 413 sets the start position and the end position so that the seedling tray 6 sent from the second transfer device 5200 can be reliably received and can be reliably conveyed downward. Further, in each area divided by each row of the seedling tank 41, a first seedling detection switch 411 is provided near the lower end, and a second seedling detection switch 412 is provided at a substantially central position, and these switches 411 and 412 are provided. Based on the detection result, the control unit 9 can determine the seedling shortage. In particular, the switch 412 can detect that there is a vacancy for one seedling mat in one compartment area of the seedling tank 41.

The control unit 9 appropriately drives the first drive device 5600 and the second drive device 5620 including the motor so that the seedlings are replenished in the section area of the seedling tank determined to be out of seedlings.

By the way, as described above, the control unit 9 raises the seedling tank 41 by a predetermined operation by the worker M or according to the program of the "automatic seedling replenishment mode", but as shown in FIG. 23, the second seedling tank 41 is raised. A switch 5505 is provided at the lower end of the back side of the transport device 5200, and when the switch 5505 is turned on, the control unit 9 stops the raising operation of the seedling tank 41.

As shown in the figure, the tip (lower end) side of the second transport device 5200 is gently curved so that when the seedling tank 41 rises, it can be connected without a step. Therefore, the seedlings can be smoothly supplied to the seedling tank 41.

As described above, the seedling transplanting machine 1 according to the second embodiment can automatically transport seedlings from the front side of the machine body to the planting part 4 connected to the rear part of the machine body. In the present embodiment, two seedling mats are arranged in the first transport device 5100, and a total of six seedling mats can be transported by arranging three seedling mats in the front and rear, but the number of seedling mats that can be transported can be appropriately set. ..

Further, between the first transfer device 5100 and the second transfer device 5200, and further between the second transfer device 5200 and the seedling tank 4100, each of them overlaps with a slight step without forming a large step. It is desirable that they are arranged in such a manner. With such a configuration, the seedling tray 6 and the seedling mat can be smoothly transported.

Further, it is desirable that the belt 5400 of the first transport device 5100 is set to be about half the length of the seedling tray 6 or slightly longer than that, and the adjacent belts 5400 are arranged at the same position. With such a configuration, at least 1/4 of the length of the seedling tray 6 is hung on the belt 5400, so that each fruit can be smoothly conveyed.

Further, the first transport device 5100 is provided with a plurality of switches 5501 to 5504. For example, if the switch of the seedling tray 6 next to the seedling tray 6 to which the switch is pressed is not pressed, two seedlings are provided. The belt 5400 that conveys the tray 6 is driven and sent to the next seedling tray 6. On the other hand, if the switch of the seedling tray 6 next to the seedling tray 6 to which the switch is pressed is pressed, the belt 5400 that conveys the two seedling trays 6 is not driven. By doing so, the seedling trays 6 are transported in an orderly manner so as to be lined up in a packed state, and the work efficiency is improved.

Further, in the present embodiment, as shown in FIG. 19, four switches 5501 to 5504 are arranged in the left and right transport paths 5101, 5102 in the foremost position. Therefore, the two seedling trays 6 located in the foremost position of the first transfer device 5100 can be prevented from driving the motor 5601 unless the two switches 5501 and 5502 are turned on. With such a configuration, in the subsequent operation, the seedlings can be reliably fed in units of two rows with the two seedling trays 6 as one unit. That is, it is possible to avoid a state in which there are no seedlings in the transport path on one side.

Further, in the present embodiment, as shown in FIG. 19, three motors are provided in the transport direction of the first transport device 5100, but three motors are arranged for each of the transport paths 01 and 5102. It is also possible to make it possible to transport each article individually.

Further, in the present embodiment, as shown in FIGS. 20 and 21, the second transport device 5200 is provided with a tray frame 5220 on which two seedling trays 6 can be placed, but the tray frame 5220 is moved to the left and right. The transport timing is determined by the control unit 9 by the detection of the switch.

In each of the above-described embodiments, the seedling transplanting machine 1 for 6-row planting is used, but it is possible to handle an appropriate number of rows such as 4-row planting and 8-row planting. At this time, the position of the tray frame 5220 on the second transport device 5200, which is the connected seedling tank, can be appropriately set in consideration of convenience and the like. In addition, the number and arrangement of switches for detecting the position of the tray frame 5220 can be appropriately determined according to the number of rows.

(Third Embodiment)
Next, the seedling transplanting machine 1 according to the third embodiment will be described with reference to FIGS. 24 to 27. FIG. 24 is a schematic side view in which a part of the seedling transplanting machine 1 including the seedling supply unit 5 according to the third embodiment is omitted. FIG. 25 is an explanatory view showing a transport state of the seedling tray 6 used in the seedling supply unit 5 according to the third embodiment in a plan view. Further, FIG. 26 is an explanatory view showing a side view of the transport state of the seedling tray 6 used in the seedling supply unit 5. FIG. 27 is an explanatory diagram of the seedling tray 6 used in the seedling supply unit 5. Note that this embodiment is an example of a type in which the worker M manually conveys the seedling tray 6 as in the first embodiment.

As shown in FIGS. 24 to 26, in the present embodiment, in the first transport device 57, more seedling trays 6 can be transported in an obliquely upright state.

As shown in FIGS. 27 and 28, the seedling tray 6 according to the present embodiment is provided with a fence body 640 at substantially the center of the left and right side edges of the rectangular mounting plate 62, respectively. A holding portion 66 formed in a square tubular shape is provided with a slight gap on the handle portion 61 side from each of the left and right fence bodies 640.

In order to fix the holding portion 66 to the thin mounting plate 62, a plate body 67 connecting the left and right holding portions 66, 66 is provided. Then, the plate body 67 is curved in the vicinity of the holding portion 66, and the curved portion is used as the mounting portion 662, and the mounting portion 662 and the connecting portion 663 formed on the left and right edges of the mounting plate 62 are formed at two locations. The holding portion 66 and the mounting plate 62 are connected (see FIGS. 26 and 27 (b)). In this way, since the holding portion 66 is supported at two places, unlike the cantilever support, the holding portion 66 does not bend or the connecting force is weak, and there is no possibility that the holding portion 66 will come off from the mounting plate 62.

The pair of rails of the first transport device 57 are formed in a U-shaped cross section so that the open portions face each other, on the left side in the width direction of the traveling vehicle body 2, immediately before the second transport device 52 from the front to the rear. It has been extended to. Then, by inserting the holding portion 66 of the seedling tray 6 into such a rail, the seedling tray 6 can be placed side by side between the pair of rails.

According to such a configuration, a larger number of seedling trays 6 can be placed as compared with the first transport device 51 in the first embodiment. Further, as shown in FIGS. 25 and 26, when the seedling trays 6 are arranged, the ends of the holding portions 66 come into contact with each other, so that an appropriate distance between the adjacent seedling trays 6 is maintained. It is possible to smoothly push and move from the front to the rear. Therefore, while many seedlings can be transported, there is no risk of crushing the seedlings.

Further, when the seedling tray 6 is arranged on the rail in a state of being tilted at an angle of 60 degrees, a gap is provided between the holding portion 66 and the handle portion 61, and the handle portion 61 is provided with a drain hole. It is preferable to keep it. Even if water is sprinkled on the seedling mat, the water will drain smoothly, so there is no risk of water accumulating and breaking the floor soil.

Since the second transfer device 52 has the same configuration as that in the first embodiment, as shown in FIG. 24, the seedling tray 6 reaching the end of the first transfer device 51 is the second transfer device 52. Can be easily moved to. Then, the moved seedling tray 6 is held in a stable state at a gentle angle by the two rod-shaped bodies 521 and 522 of the second transport device 52.

(Modified example of seedling transplanting machine 1)
Here, a modified example of the seedling transplanting machine 1 will be described. In such a seedling transplanting machine 1, a sub-hopper 71 for storing supplementary fertilizer is arranged in a hopper 70 forming a part of a fertilizer application device 7 below the seedling supply unit 5 described above. Therefore, the seedling transplanting machine 1 according to the modified example has the same configuration as the seedling transplanting machine 1 according to the first to third embodiments, except that the sub hopper 71 and the devices related to the sub hopper 71 are provided. For convenience, in FIG. 29, the seedling supply unit 5 is provided with the configuration according to the first embodiment.

FIG. 28 is a schematic plan view of the fertilizer application device 7 included in the seedling transplanter 1 according to the modified example, and FIG. 29 is a schematic side view of the fertilizer application device 7 included in the seedling transplanter 1 according to the modified example. Further, FIG. 30 is a schematic side view showing the operation of the sub hopper 71 of the fertilizer application device 7 included in the seedling transplanter 1 according to the modified example, and FIG. 31 is a schematic side view showing the operation of the fertilizer application device 7 included in the seedling transplanter 1 according to the modified example. It is a schematic explanatory drawing which shows the feeding part 710 of the sub hopper 71 of.

As shown in FIGS. 28 and 29, the sub hopper 71 and the main hopper 70 are connected by a plurality of hoses 711. Then, the fertilizer in the sub hopper 71 can be transferred to the hopper 70 by the feeding unit 710, which is a fertilizer feeding device connected to the lower part of the sub hopper 71. The hose 711 may have a slightly larger diameter than the hose (not shown) arranged from the main hopper 70 to the planting portion 4.

With such a configuration, the burden on the worker M is greatly reduced as compared with the case where the worker M holds a heavy fertilizer bag and supplies fertilizer to the hopper 70.

As shown in FIG. 29, the feeding unit 710 is provided at the bottom of the bottom having a long gradient in the front-rear direction, and has a roll diameter and a roll volume larger than those of the fertilizer feeding device 720 provided in the main hopper 70. Is the first. As shown in FIG. 31, the roll drive is performed by the motor 715.

Further, as shown in FIGS. 31 (a) and 31 (b), each roll 716 of the feeding unit 710 is arranged so as to face each hose 711, and is rotated by one motor 715 from the sub hopper 71. The falling fertilizer is sent to the hose 711, and the hose 711 is sent to the hopper 70 by the suction force of a blower device (not shown).

As the blower device, as shown in FIG. 28, it can also be used as the blower device 77 of the hopper 70. In this case, it is preferable that the air passage of the blower device 77 is bifurcated and one of them is connected to the lower part of the feeding portion 710 of the sub hopper 71. It goes without saying that a dedicated blower device for the sub hopper 71 can be provided.

Note that FIGS. 31 (C1) and 31 (C2) are modified examples of the feeding section 710, and as shown in the drawing, the scraping section 7102 that scrapes the fertilizer on the outside of the roll while forming the diagonal groove 7101 in the roll 7100. I'm straightening it. With such a configuration, it is possible to form a portion where the fertilizer to be scraped escapes without scraping the fertilizer over a wide width at one time. Therefore, it is possible to reduce the load of rolling drive, and the motor 715 can be made small and inexpensive. In addition, since the fertilizer grains are not easily broken, it is considered that fertilizer powder is less likely to be generated, and it is possible to prevent clogging and contamination by the fertilizer powder.

It is preferable to provide a fertilizer sensor (not shown) not only on the hopper 70 but also on the sub hopper 71. The fertilizer sensor shall be provided with a sensor capable of detecting a fertilizer shortage state and a full tank state.

By the way, the drive of the motor 715 may also be controlled by the control unit 9, but at this time, it can be interlocked with the planting clutch (not shown) of the planting unit 4. That is, when the planting clutch is in the disengaged state, the motor 715 of the feeding unit 710 of the sub hopper 71 is driven. In addition, an air passage switching shutter (not shown) is provided at the bifurcated portion of the air passage of the blower device 77, and is on the fertilizer application device 7 side when the planting clutch is engaged, and on the sub hopper 71 side when the planting clutch is disengaged. It is preferable that the control unit 9 also controls the shutter switching so that the wind is sent to the air.

As shown in FIG. 30, the sub hopper 71 having the above-described configuration is configured to be rotatable in two stages toward the front side of the traveling vehicle body 2. In the first stage shown in FIG. 30A, the front end portion of the sub hopper 71 is located slightly above the upper surface (for example, the step surface) of the traveling vehicle body 2, and fertilizer is transferred from the bucket B1 or the like at such a position. Can be accommodated.

Further, in the second stage shown in FIG. 30B, the front end portion of the sub hopper 71 is located close to the upper surface (for example, the step surface) of the traveling vehicle body 2, and at such a position, the fertilizer remaining in the sub hopper 71 or the like is present. Can be transferred to bucket B2 and collected.

(Fourth Embodiment)
Next, the seedling transplanting machine 1 according to the fourth embodiment will be described. 32 is a schematic plan view of the seedling transplanting machine 1 according to the fourth embodiment, FIG. 32 is a schematic side view of the seedling transplanting machine 1, and FIG. 34 is a schematic front surface of the seedling transplanting machine 1. It is a figure. In FIG. 34, the hopper 70 forming a part of the fertilizer application device 7 is omitted.

As shown in the figure, the seedling transplanting machine 1 according to the fourth embodiment has basically the same configuration as the seedling transplanting machine 1 according to the first to third embodiments, and the difference is in the seedling supply unit 5. Instead, it is provided with a fertilizer supply unit 8 for transporting fertilizer to be supplied to the fertilizer application device 7. Moreover, the basic structure of the fertilizer supply unit 8 is the same as the structure of the seedling supply unit 5, and is the first transport having a pair of rod-shaped bodies 811 and 812 which are arranged close to the left side of the traveling vehicle body 2 and serve as rail bodies 810. A device 81 and a second transfer device 82 having a pair of rod-shaped bodies 821 and 822 that also serve as rail bodies 820 are provided.

That is, the seedling transplanting machine 1 according to the fourth embodiment includes a traveling vehicle body 2 provided with the traveling vehicle body 3 and a fertilizing device 7 arranged at the rear portion of the traveling vehicle body 2 and applying fertilizer to the field. The traveling vehicle body 2 is provided with a control unit 20 and a fertilizer supply unit 8 for supplying fertilizer to the fertilizer application device 7.

In such a configuration, the control unit 20 includes a bonnet unit 21 arranged on one side in the width direction of the traveling vehicle body 2, that is, on the right side, and the fertilizer supply unit 8 is provided on the other side in the width direction of the traveling vehicle body 2, that is, It is arranged close to the left side and includes a first transfer device 81 capable of mounting the fertilizer storage body 83 and transporting the placed fertilizer storage body 83 to the hopper 70 of the fertilizer application device 7. .. Also in this embodiment, a plurality of hoppers 70 are provided in a row in the width direction of the traveling vehicle body 2, and are located below the second transport device 82.

Further, the fertilizer supply unit 8 is arranged along the plurality of hoppers 70, and provides a second transport device 82 capable of transporting the fertilizer storage body 83 inherited from the first transport device 81 to the position of the predetermined hopper 70. Further prepared.

In this way, the first transport device 81 is arranged so as to be moved to the left side in the traveling direction of the traveling vehicle body 2, and extends from the front side of the machine body toward the fertilizer application device at the rear part of the machine body, and is a second transport device. The device 82 extends in the width direction of the machine body in the vicinity of the terminal portion of the first transport device 81. Therefore, the fertilizer supply unit 8 is arranged in a substantially L shape as shown in FIG. 32 by the first transfer device 81 and the second transfer device 82.

The first transfer device 81 and the second transfer device 82 can move the fertilizer storage body 83 on a pair of rod-shaped bodies 810, 812, 821, 822 that form the rail bodies 810 and 820. , These pair of rod-shaped bodies 811 (821) and 812 (822) are rod-shaped bodies 811 located inside the traveling vehicle body 2 like the rod-shaped bodies 511 (521) and 512 (522) of the seedling supply unit 5 described above. The 821) is provided at a position lower than the rod-shaped body 812 (822) located on the outside.

Here, the fertilizer storage body 83 transported by the first transport device 81 and the second transport device 82 will be described. FIG. 35 is an explanatory diagram showing a fertilizer storage body 83 of the fertilizer supply unit 8 included in the seedling transplanting machine 1 according to the fourth embodiment.

As shown in FIG. 35, the fertilizer storage body 83 is composed of a rectangular box body having an upper opening, and rod-shaped bodies 8111 (821) and 812 (822) forming a rail body 810 (820) are provided on four side walls. ), The first to fourth engaging portions 831, 832, 833, 834 are provided. Although not shown, a lid that can be slid to open and close is attached to the upper opening of the fertilizer storage body 83.

As shown in FIG. 34, the third engaging portion 833 and the fourth engaging portion 834 engage with the rod-shaped bodies 811 and 812 of the first transport device 81 and move in a suspended state. .. Therefore, the third engaging portion 833 and the fourth engaging portion 834 have a shape having an upwardly convex curved surface.

Here, the third engaging portion 833 is engaged with the inner rod-shaped body 811 of the first conveying device 81, and the fourth engaging portion 834 is engaged with the outer rod-shaped body 812. Therefore, the fourth engaging portion 834 provided on the side wall on one side is arranged close to the upper edge of the fertilizer storage body 83, and the third engaging portion 833 provided on the side wall on the opposite side is the fourth engaging portion. It is located below 834.

Further, as shown in FIG. 33, the first engaging portion 831 and the second engaging portion 832 have a shape having a downwardly convex curved surface, and the fertilizer storage body 83 is turned upside down. It is adapted to engage with the pair of rod-shaped bodies 821 and 822 of the transport device 82 of 2.

That is, when the fertilizer storage body 83 is positioned in front of the first transport device 81, the fertilizer is filled and the seedling transplanting machine 1 is operated, and the field is fertilized using the fertilizer application device 7, the hopper 70 When the fertilizer is insufficient, the worker M stops the machine and then slides the fertilizer storage body 83 suspended from the first transfer device 81 backward to move.

Then, as shown in FIG. 33, the fertilizer storage body 83 is inverted back and forth near the end of the first transport device 81, and the first engaging portion 831 is placed on the outer rod-shaped body 822 of the second transport device 82. The second engaging portion 832 is engaged with the inner rod-shaped body 821. Then, the second transport device 82 is slid to the desired position of the hopper 70, a lid (not shown) is opened, and the fertilizer in the fertilizer storage body 83 is replenished.

Further, as a modification of the fertilizer storage body 83, the above-mentioned second engaging portion 832 can be formed into a semicircular shape in a cross-sectional view. In the case of the fertilizer storage body 83 having the second engaging portion 832, as shown in FIG. 36, when the fertilizer storage body 83 is located at the end of the first transport device 81, the second engaging portion 832 becomes the second. It can be easily engaged with the rod-shaped body 821 on the lower side of the transport device 82 of 2. In this case, the first engaging portion 831 may be abolished.

If the second engaging portion 832 is engaged with the rod-shaped body 821, the operator M can easily move the second transport device 82 with a small load. Then, when the hopper 70 is moved to the desired position, the worker M holds the fertilizer storage body 83 and rotates the fertilizer storage body 83 upward with the rod-shaped body 821 as a fulcrum, as shown in the figure, to transfer the fertilizer from the fertilizer storage body 83 to the hopper 70. Can be replenished to. In the case of the fertilizer storage body 83 according to this modification, the lid of the fertilizer storage body 83 may be removed in fine weather.

Hereinafter, the fertilizer storage body according to the modified example will be described. FIG. 37 is an explanatory diagram showing a modified example of the fertilizer storage body in the fertilizer supply unit 8 included in the seedling transplanting machine 1 according to the fourth embodiment.

As shown in FIG. 37 (a), the fertilizer storage body 84 according to the modified example is formed in a box shape, and a lid body 840 having a large opening is attached to the upper portion, and the lid body 840 is attached to the lid body 840. A shutter 841 that closes the large opening is attached. Here, the shape of the fertilizer storage body 84 is a quadrangle in a horizontal cross-sectional view, but it may be another polygon or a circle.

The shutter 841 is slidably attached to the lid 840, and the shutter 841 is provided with a plurality of openings 8410 that are smaller than the large opening of the lid 840. Therefore, if the shutter 841 is slid when necessary to overlap the opening 8410 with the large opening of the lid 840, the amount of fertilizer corresponding to the opening 8410 can be discharged. The opening areas of the plurality of openings 8410 can be appropriately set.

When such a fertilizer storage body 84 is used, as shown in FIG. 37B, after the fertilizer storage body 84 is moved upside down to the second transport device 82, it is moved to the desired position of the hopper 70. Then, the shutter 841 is slid to fill the hopper 70 with fertilizer through an appropriate opening 8410.

FIG. 38 is an explanatory diagram showing a second modification of the fertilizer storage body in the fertilizer supply unit 8 included in the seedling transplanting machine 1 according to the fourth embodiment. As shown in the figure, the fertilizer storage body 85 according to the second modification has a large opening on the side surface of the box-shaped main body, and a large lid portion 852 is detachably attached to the opening portion. The shape of the fertilizer storage body 85 may be a polygonal shape in a horizontal cross-sectional view or a circular shape.

Then, the fertilizer bag 86 can be taken in and out directly from the opening portion of the fertilizer storage body 85. That is, the fertilizer storage body 85 can store, for example, a commercially available fertilizer bag 86 containing 20 kg. With such a configuration, it is not necessary to transfer fertilizer from the fertilizer bag 86 to the fertilizer storage body 85, which improves workability and reduces fertilizer for the worker M.

FIG. 39 is an explanatory diagram showing a third modification of the fertilizer storage body in the fertilizer supply unit 8 included in the seedling transplanting machine 1 according to the fourth embodiment. Further, FIG. 40 is an explanatory diagram showing a fertilizer replenishment operation using the fertilizer storage body according to the third modification.

As shown in FIG. 39, in the fertilizer storage body 87 according to the third modification, a lid portion 870 covering the upper opening is attached to a main body portion formed in a rectangular box shape of the upper opening, and the lid portion 870 is attached. A bellows-shaped hose 88 is attached to the 870. As shown in FIG. 39 (b), a cap 881 is provided at the tip opening of the hose 88.

When the fertilizer storage body 87 having such a configuration is used, as shown in FIG. 40, the fertilizer storage body 87 is turned upside down, and the engaging portion 871 having a bay shape in a cross-sectional view provided on the peripheral wall of the main body portion is transferred to the second It engages and holds the rod-shaped body 821 inside the device 82. Then, the worker M can replenish the fertilizer by inserting the hose 88 from which the cap 881 is removed into the desired hopper 70. In this case, if the length of the hose 88 is set to extend to the right end of the hopper 70, it is not necessary to move the fertilizer storage body 87 on the second transfer device 82, and the workability is improved.

By the way, the hopper 70 shown in FIG. 40 is formed so that the upper surface thereof is inclined downward from the rear to the front substantially parallel to the line connecting the pair of rod-shaped bodies 821 and 822 of the second transport device 82. When the lid of the hopper 70 is opened, the angle α1 from the horizontal when the lid is closed and the angle α2 from the horizontal when the lid is opened are set to be the same angle.

With such a configuration, the space between the pair of rod-shaped bodies 821 and 822 having different heights and the fertilizer storage body 87 having an oblique upper surface can be used more widely as the volume of the hopper 70, and the hopper can be used more widely. The size of 70 can be increased. Further, by regulating the opening degree of the lid of the hopper 70, it is possible to replenish the fertilizer by using the fertilizer supply unit 8 in a state where the fertilizer is difficult to get wet with rain even in rainy weather, and the workability is improved. ..

The fertilizer supply unit 8 in the fourth embodiment described above can also be automatically transported by the control unit 9 by using, for example, a plurality of motors serving as a third drive device 5630 (see FIG. 16 Sun). For example, the operation of the fertilizer supply unit 8 is controlled by the control unit 9 according to the program of the "automatic fertilizer replenishment mode" set in the seedling transplanting machine 1.

For example, it is preferable to provide a switch for activating the "automatic fertilizer replenishment mode" at an appropriate position on the control unit 20 so that the "automatic fertilizer replenishment mode" can be selected by operating the switch of the operator M. In the "automatic fertilizer replenishment mode", the driving of the traveling device 3 is stopped, and the driving of each device of the fertilizer applying device 7 and the planting unit 4 is also stopped. The control unit 20 may be provided with a fertilizer shortage alarm such as a buzzer or a lamp for notifying the fertilizer shortage of the hopper 70.

The fertilizer supply unit 8 in the fourth embodiment described above is arranged in place of the seedling supply unit 5 in the first to third embodiments described above. For example, the fertilizer supply unit 8 is arranged as a seedling supply unit. It is also possible to provide a seedling transplanting machine 1 which is arranged below the 5 and has both a seedling supply unit 5 and a fertilizer supply unit 8. Further, when the fertilizer supply unit 8 is arranged instead of the seedling supply unit 5, the rail bodies 510, 520 and the like of the seedling supply unit 5 can be diverted.

The following seedling transplanting machine 1 is realized from the above-described embodiment.

(1) A traveling vehicle body 2 provided with a traveling device 3 and a planting portion 4 connected to the rear portion of the traveling vehicle body 2 for planting seedlings in a field are provided. A seedling supply unit 5 for supplying seedlings is provided to the unit 4, the control unit 20 includes a bonnet unit 21 arranged close to one side in the width direction of the traveling vehicle body 2, and the seedling supply unit 5 is a traveling vehicle body. A first transport device 51 that is arranged closer to the other side in the width direction of 2 and can mount the seedling tray 6 and can transport the placed seedling tray 6 toward the planting portion 4. Seedling transplanting machine 1.

According to such a configuration, a wide working space adjacent to the control unit 20 can be secured on the traveling vehicle body 2, and seedlings can be easily loaded and replenished to the seedling tank 41. Therefore, the workability can be improved and the burden on the worker M can be reduced.

(2) In the above (1), the planting portion 4 includes a plurality of seedling tanks 41 provided in a row in the width direction of the traveling vehicle body 2, and a plurality of planting portions provided corresponding to each seedling tank 41. The seedling supply unit 5 is provided with the device 42, and is arranged along the plurality of seedling tanks 41, and the seedling tray 6 inherited from the first transfer device 51 can be conveyed to a predetermined position of the seedling tank 41. A seedling transplanting machine 1 further comprising the transport device 52 of 2.

According to such a configuration, it becomes possible to adapt to a plurality of seedling tanks 41, and it is possible to smoothly supply seedlings to a desired seedling tank 41.

(3) In the above (2), the first transfer device 51 and the second transfer device 52 are seedling transplanting machines 1 provided with rail bodies 510 and 520 on which the seedling tray 6 can be placed and moved, respectively.

According to such a configuration, the seedling supply unit 5 can be simply configured, and the cost increase can be suppressed.

(4) In the above (3), the pair of rod-shaped bodies 511 (521) and 512 (522) constituting the rail bodies 510 and 520 have the rod-shaped bodies 511 (521) located inside the traveling vehicle body 2 on the outside. A seedling transplanting machine 1 provided at a position lower than the rod-shaped body 512 (522) located.

According to such a configuration, it is possible to prevent the seedling tray 6 from falling into the field with a simple configuration, and it is possible to improve workability.

(5) In the above (3) or (4), the first transfer device 51 and the second transfer device 52 include seedlings including a first drive device 5600 for moving the seedling tray 6 on the rail bodies 510 and 520. Transplant machine 1.

According to this configuration, the first transport device 51 can be used as a front seedling tank and the second transport device 52 can be used as a relay seedling tank, so that more seedlings can be loaded and seedlings can be automatically transported. Workability can be improved and the burden on the worker M can be significantly reduced.

(6) In any of the above (2) to (5), the planting portion 4 can ascend to the seedling inheritance position where the upper end of the seedling tank 41 is close to the second transport device 52, and the second transport. The device 52 is a seedling transplanting machine 1 including a second drive device 5620 that moves the seedling tray 6 toward the seedling tank 41 that has risen to the seedling inheritance position.

According to such a configuration, the effect of the above (5) can be further enhanced.

(7) In any of the above (3) to (6), the rail body 510 of the first transport device 51 is a seedling transplanting machine 1 provided so as to be movable in the width direction of the traveling vehicle body 2.

According to such a configuration, the worker M can appropriately use the work space depending on whether the work space is required or the width of the machine body is not widened, and the workability and convenience can be improved.

(8) In any of the above (3) to (6), the rail bodies 510 of the first transport device 51 are the seedling transplanting machines 1 arranged in a plurality of rows in the width direction of the traveling vehicle body 2.

According to such a configuration, the amount of spare seedlings placed can be doubled.

(9) In any of the above (2) to (8), the traveling vehicle body 2 is provided with a fertilizer application device 7 for applying fertilizer to the field, and the fertilizer application device 7 is a second transport at a position in front of the planting portion 4. A seedling transplanting machine 1 including a hopper 70 arranged below the device 52 and a sub hopper 71 arranged below the first transport device 51 and storing fertilizer to be replenished to the hopper 70.

According to such a configuration, workability is improved not only in the seedling replenishment work but also in the fertilizer replenishment work, and the burden on the worker M can be further reduced.

(10) A traveling vehicle body 2 provided with a traveling vehicle body 3 and a fertilizer applying device 7 arranged at the rear of the traveling vehicle body 2 to apply fertilizer to a field are provided. The traveling vehicle body 2 includes a control unit 20 and a fertilizer application device 7. A fertilizer supply unit 8 for supplying fertilizer is provided, the control unit 20 includes a bonnet unit 21 arranged close to one side in the width direction of the traveling vehicle body 2, and the fertilizer supply unit 8 is a traveling vehicle body 2. The fertilizer storage bodies 83, 85, 87 are arranged closer to the other side in the width direction, and the placed fertilizer storage bodies 83, 85, 87 can be transported to the fertilizer application device 7. Seedling transplanting machine 1 including the transport device 81 of 1.

According to such a configuration, a wide working space adjacent to the control unit 20 can be secured on the traveling vehicle body 2, and the loading of the replenishing fertilizer to the replenishment of the fertilizer application device 7 to the hopper 70 can be easily performed. Can be done. Therefore, the workability can be improved and the burden on the worker M can be reduced.

(11) In the above (10), the fertilizer application device 7 includes a plurality of hoppers 70 provided in a row in the width direction of the traveling vehicle body 2, and the fertilizer supply unit 8 is arranged along the plurality of hoppers 70. A seedling transplanting machine 1 further comprising a second transport device 82 capable of transporting the fertilizer storage bodies 83, 85, 87 inherited from the first transport device 81 to the position of a predetermined hopper 70.

According to such a configuration, it becomes possible to adapt to a plurality of hoppers 70, and it is possible to smoothly supply fertilizer to a desired hopper 70.

(12) In the above (11), the first transport device 81 and the second transport device 82 include rail bodies 810 and 820 on which fertilizer storage bodies 83, 85 and 87 can be placed and moved, respectively. Seedling transplanter 1.

According to such a configuration, the fertilizer supply unit 8 can be simply configured, and the cost increase can be suppressed.

(13) In the above (12), in the pair of rod-shaped bodies 811 and 812 (821, 822) constituting the rail bodies 810 and 820, the rod-shaped bodies 811 (821) located inside the traveling vehicle body 2 are located outside. Seedling transplanting machine 1 provided at a position lower than the rod-shaped body 812 (822).

According to such a configuration, it is possible to prevent the fertilizer storage bodies 83, 85, 87 from falling with a simple configuration, and it is possible to improve workability.

(14) In the above (12) or (13), the first transfer device 81 and the second transfer device 82 are third motors for moving the fertilizer storage bodies 83, 85, 87 on the rail bodies 810, 820. Seedling transplanting machine 1 provided with 5630.

According to such a configuration, the fertilizer replenishment work can be automated, so that the workability can be improved and the burden on the worker M can be significantly reduced.

(15) In the above (12) or (13), the rail body 810 of the first transport device 81 is a seedling transplanting machine 1 provided so as to be movable in the width direction of the traveling vehicle body 2.

According to such a configuration, the worker M can appropriately use the work space depending on whether the work space is required or the width of the machine body is not widened, and the workability and convenience can be improved.

(16) In the above (12) or (13), the rail bodies 810 of the first transport device 81 are the seedling transplanting machines 1 arranged in a plurality of rows in the width direction of the traveling vehicle body 2.

According to such a configuration, the amount of reserve fertilizer placed can be doubled.

(17) In any of the above (12) to (16), the fertilizer storage bodies 83, 85, 87 are engaged with the rail bodies 810, 820 on the peripheral wall of the casing accommodating the fertilizer bag 86. , 832, 833, 834. Seedling transplanting machine 1.

According to such a configuration, it is not necessary to hold the heavy fertilizer storage bodies 83, 85, 87, the burden on the worker M can be further reduced, and the workability can be further improved.

The above-described embodiments are merely examples, and are not intended to limit the scope of the invention. The embodiment can be implemented in various other forms, and various omissions, replacements, combinations, and changes can be made without departing from the gist of the invention. In addition, specifications such as each configuration, shape, and display elements (structure, type, direction, shape, size, length, width, thickness, height, number, arrangement, position, material, etc.) are changed as appropriate. Can be carried out.

1 Seedling transplanter 2 Traveling vehicle body 3 Traveling device 4 Planting section 5 Seedling supply section 6 Seedling tray 7 Fertilizer application device 8 Fertilizer supply section 9 Control section 20 Control section 21 Bonnet section 41 Seedling tank 42 Planting device 51 First transport device 52 Second transport device 70 Hopper 71 Sub hopper 81 First transport device 82 Second transport device 83 Fertilizer storage body 85 Fertilizer storage body 87 Fertilizer storage body 510 Rail body (rail)
511 Rod-shaped body 512 Rod-shaped body 520 Rail body (rail)
521 Rod-shaped body 522 Rod-shaped body 810 Rail body (rail)
811 Rod-shaped body 812 Rod-shaped body 820 Rail body (rail)
821 Rod-shaped body 822 Rod-shaped body 5600 First drive device 5620 Second drive device M Worker

Claims (9)

A traveling vehicle equipped with a traveling device and
A planting part connected to the rear part of the traveling vehicle body to plant seedlings in the field,
With
The traveling vehicle body
A control unit and a seedling supply unit that supplies seedlings to the planting unit are provided.
The control unit
It is provided with a bonnet portion arranged close to one side in the width direction of the traveling vehicle body.
The seedling supply unit
A first transport device that is arranged closer to the other side in the width direction of the traveling vehicle body, can mount the seedling tray, and can transport the mounted seedling tray toward the planting portion. A seedling transplanting machine characterized by being prepared. The planting part
A plurality of seedling tanks provided in a row in the width direction of the traveling vehicle body, and
A plurality of planting devices provided corresponding to each of the seedling tanks,
With
The seedling supply unit
Claim 1 is further provided with a second transport device which is arranged along the plurality of seedling tanks and can transport the seedling tray inherited from the first transfer device to a predetermined seedling tank position. Seedling transplanting machine described in. The first transfer device and the second transfer device are
The seedling transplanting machine according to claim 2, wherein each of the seedling trays is provided with a rail on which the seedling tray can be placed and moved. The pair of rod-shaped bodies constituting the rail
The seedling transplanting machine according to claim 3, wherein the rod-shaped body located inside the traveling vehicle body is provided at a lower position than the rod-shaped body located outside. The first transfer device and the second transfer device are
The seedling transplanting machine according to claim 2 or 3, further comprising a first driving device for moving the seedling tray on the rail. The planting part
The upper end of the seedling tank can be raised to a seedling inheritance position close to the second transfer device.
The second transfer device is
The seedling transplanting machine according to any one of claims 2 to 5, further comprising a second driving device for moving the seedling tray toward the seedling tank raised to the seedling inheritance position. The rail of the first transport device is
The seedling transplanting machine according to any one of claims 3 to 6, wherein the seedling transplanting machine is provided so as to be movable in the width direction of the traveling vehicle body. The rail of the first transport device is
The seedling transplanting machine according to any one of claims 3 to 6, wherein a plurality of rows are arranged in the width direction of the traveling vehicle body. The traveling vehicle body is equipped with a fertilizer application device for applying fertilizer to the field.
The fertilizer application device
A hopper arranged below the second transfer device at a position in front of the planting portion,
The seedling transplanting machine according to any one of claims 2 to 8, further comprising a sub-hopper which is arranged below the first transport device and stores fertilizer to be replenished in the hopper.

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