JP3836221B2 - Seedling box arrangement device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seedling box arranging device used when arranging seeded seedling boxes on the ground for raising seedlings.
[0002]
[Prior art]
As pot seedlings for rice transplanters, seedling boxes are filled with floor soil and sown, germinated indoors, placed on the ground in the nursery house, and grown to a certain size Is done. Conventionally, the operation of arranging the seedling boxes on the ground has been performed manually.
[0003]
[Problems to be solved by the invention]
This work was very hard work and the work efficiency was poor. Therefore, it is an object of the present invention to provide an apparatus that can easily and efficiently perform seedling box arrangement work.
[0004]
[Means for Solving the Problems]
In order to solve the above problems, the present invention is configured as follows. That is, the seedling box arranging device according to the present invention is supported on the traveling carriage (3) that can travel on the rail (2) laid on the ground and moves by placing a plurality of seedling boxes, A pair of left and right seedling box positioning frames (5) projecting on both sides of the rail, and a step (6) that is rotatable up and down is provided behind the traveling carriage; A left and right positioning disk (26) serving as a reference for determining the left and right position of the seedling box is provided at a position near the outside of the rail and an outer end position of the seedling box positioning frame, and a rear end for positioning the rear end of the seedling box A positioning plate (28) is provided, and the pair of left and right seedling box positioning frames are provided so that the tip side thereof moves up and down with a fulcrum shaft as a fulcrum, and at the end of the seedling box positioning frame, the seedling box With the positioning frame not turning upward When a stand (30) whose end is grounded is provided and the operator moves above the step and rotates the step downward, the tip side of the seedling box positioning frame is lifted upward, and the stand is lifted from the ground. It is characterized by the fact that it is lifted and the traveling carriage can be moved .
[0005]
A traveling carriage carrying a plurality of seedling boxes is moved intermittently at a constant distance. When the traveling carriage is stopped, the seedling boxes placed on the traveling carriage are arranged on the ground using the seedling box positioning frame as a positioning reference. The operation of arranging the seedling boxes on the ground may be performed manually or by a machine. It is easy to move the seedling box on the traveling carriage. By using the seedling box positioning frame as a reference for determining the position of the seedling box, the seedling box arranging work can be performed accurately and easily. In addition, since the seedling box positioning frame projects on both sides of the rail, the seedling boxes can be arranged on both sides of the rail, and the work efficiency is good.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
A seedling box arranging device 1 of the first example shown in FIGS. 1 to 10 includes a traveling carriage 3 traveling on two rails 2 and 2 laid parallel to the ground, and supported on the traveling carriage on both sides of the rail. A pair of left and right seedling box positioning frames 5, 5, a step 6 disposed behind the traveling carriage 3, treads 7, 7 disposed behind the left and right seedling box positioning frames 5, 5, a seedling box positioning frame 5 and 5 seedling box trucks 8 and 8 are provided.
[0007]
In the traveling carriage 3, a frame 10 is constituted by left and right side plates 10a, 10a, connecting pipes 10b, 10b, 10c, 10c, 10d, 10d and a connecting plate 10e that connect these both side plates, and front end portions of the side plates 10a, 10a. A pair of left and right front wheels 11L, 11R and rear wheels 12L, 12R are attached to axles 11, 12 rotatably supported at the rear end. A traveling motor 15 is fixedly provided on the connecting pipes 10c, 10c, and a chain 18 is hung on a sprocket 16 attached to the output shaft of the motor and a sprocket 17 attached to the rear wheel axle 12. When the motor 15 is selectively driven in the forward and reverse directions to rotate the rear wheels, the traveling carriage 3 travels forward or backward on the rails 2 and 2. A control box 20 that controls driving of the motor 15 is provided on the connecting pipes 10d and 10d.
[0008]
The front wheel 11L and the rear wheel 12L on the left side are formed with an annular groove having a triangular cross section on the outer peripheral surface, and are engaged with the rail 2 so as not to be displaced from side to side. On the other hand, the right front wheel 11R and the rear wheel 12R have a smooth outer peripheral surface and are merely placed on the rail 2. This is because the rail 2 laid on the soil may be slightly out of position, so that it can cope with it. The side plates 10a, 10a are provided with scrapers 21,... For removing dirt and the like adhering to the wheels.
[0009]
Each seedling box positioning frame 5 is a rectangular frame that is formed by combining a front pipe 5a, a rear pipe 5b, an inner pipe 5c, and an outer pipe 5d and is long in plan view in the left-right direction. The portion is rotatably attached to support plates 22 and 22 fixed to the connecting pipes 10b and 10b of the traveling carriage by a fulcrum shaft 23 in the front-rear direction. Therefore, the tip of the seedling box positioning frame 5 is movable up and down with the fulcrum shaft 23 as a fulcrum. Further, a plate 24 protruding upward is attached to an intermediate portion of the front pipe 5 a, and the plates 24, 24 of the left and right seedling box positioning frames 5, 5 a are connected to each other via a tension spring 25. For this reason, each seedling box positioning frame 5 is urged with a relatively weak force in a direction in which the tip side rotates upward.
[0010]
The inside of the seedling box positioning frame 5 is a seedling box positioning section that positions four seedling boxes C whose longitudinal direction is directed to the left and right in parallel. Left and right positioning discs 26,... Serving as references for determining the left and right position of the seedling box are provided at positions near the outside of the rail 2 in the plan view, at the outer end position of the seedling box positioning frame 5, and at an intermediate position between the two positions. Yes. These left and right positioning disks 26,... Are rotatably attached to arms 27, which are rotatably supported by the front pipe 5a. For this reason, even if the ground surface is uneven, the left and right positioning disks 26,... Are always grounded during the seedling box arrangement work, so that the right and left positioning of the seedling box described later can be performed reliably. Further, rear end positioning plates 28 and 28 for positioning the rear end of the seedling box C are fixedly provided on the front side of the rear pipe 5b.
[0011]
The outer pipe 5d is attached with a sled-shaped stand 30 whose front and rear ends are warped upward so that the height can be adjusted. In addition, the front pipe 5a and the rear pipe 5b are respectively divided at the left and right central parts, and both the inner and outer parts are joined by clamps 31 and 31. It is supposed to be.
[0012]
Step 6 is a net-like platform on which about one person can ride. The rear end of Step 6 is rotatably attached to support members 34 and 34 fixed to a step frame 33 protruding rearward from the traveling carriage 3. ing. Further, fixed rods 37, 37 are rotatably supported by boss shafts 36, 36 on bosses 35, 35 fixed to the side plates 10a, 10a of the traveling carriage, and the rear end portion of the fixed rod is the front end of step 6. The front end portion of the fixed rod is in contact with the lower surfaces of the inner pipes 5c, 5c of the seedling box positioning frames 5, 5, respectively. The rotation range of the fixed rod 37 is restricted by the rear connecting frame 10b and the stopper 38.
[0013]
The footboards 7 and 7 are horizontal plate materials having substantially the same left and right width as the seedling box positioning portion, and each of the footboards 7 has an arm 40 fixed at the outer end portion of the seedling box positioning frame 5. The suspension bracket 41 is suspended from the tip portion, and the inner end portion is suspended from the outer end portion of the interlocking link 42 rotatably attached to the connecting plate 10e of the traveling carriage 3 by the suspension bracket 43. The inner end portion of the interlocking link 42 is connected to a connecting member 44 fixed to the rear end portion of Step 6.
[0014]
As shown in FIG. 8, the seedling box truck 8 includes a frame 46 configured by combining horizontal pipes 46 a, 46 a in the left-right direction and vertical pipes 46 b, 46 b in the front-rear direction provided thereon. Wheels 47,... That are rotatable around front and rear axes are attached to the four side corners. These wheels 47 are provided so as to roll on the front pipe 5a and the rear pipe 5b of the seedling box positioning frame 5. Between the vertical pipes 46b, 46b, a plurality of right and left seedling box conveying rollers 48,... Are provided, on which the seedling box can be placed with its longitudinal direction facing forward and backward. One-way stoppers 51 urged forward and rearward by torque springs 50 are provided at both front and rear ends of the vertical pipes 46b and 46b, so that the seedling box can be transferred onto the rollers 48 from the front and rear outer sides. However, the seedling box does not move in the opposite direction. Further, a moving handle 52 is attached to the frame 46 as necessary.
[0015]
In addition, an operation box 55 supported on a support frame 54 having a base fixed to the rear part of the traveling carriage 3 is provided above the left hand of Step 6. As shown in FIG. 9, the operation box 55 includes a changeover switch 55a for switching between forward, reverse, and stop, a travel switch 55b that travels by the seedling box arrangement pitch, and an inching switch 55c for fine adjustment of the front and rear position. Is provided. When the travel switch 55b is pressed, the travel motor 15 is turned on for a predetermined time by the action of a timer, as shown in the flowchart of FIG.
[0016]
Reference numeral 57 in FIG. 3 denotes a seedling box transporting carriage for transporting the seedling box from the germination room to the nursery house. The seedling box transporting carriage travels on the same rails 2 and 2 as the traveling carriage 3 of the seedling box arranging apparatus 1. It is supposed to be. Two sets of rollers 58,... Capable of stacking the stacked seedling boxes C,... In a state where the longitudinal direction is front and rear are provided in parallel on the left and right sides. These two sets of rollers 58,... Correspond to the left and right positions corresponding to the rollers 48, ..., 48, ... of the two seedling box trucks 8, 8 that are stopped at the inner ends of the seedling box positioning frames 5, 5. It is provided at the height.
[0017]
Further, a seedling box gripping tool 60 shown in FIG. 11 is used for the seedling box arranging operation. The seedling box gripping tool 60 includes a U-shaped main frame 61 in a side view, and a grip 62 is attached to an upper end portion of the main frame. Two long and short horizontal frames 63 and 64 are fixed to the lower portion of the main frame 61 in parallel to each other. At both ends of the shorter horizontal frame 63, rods 65, 65 having tips bent downward are fixed, and seedling box gripping rods 66 are fixedly provided at the tips of both rods. Further, L-shaped positioning pads 67, 67 are fixed to both ends of the longer horizontal frame 64, and an L-shaped seedling box gripping plate 68 is integrally formed between the two pads. The attached rotation rod 69 is supported rotatably. A lever arm 71 rotatably provided on the upper portion of the main frame 61 and an arm 72 fixed to the rotating rod 69 are connected by a link 73. The link 73 is urged by a tension spring 74 to the side that rotates the seedling box gripping plate 68 upward.
[0018]
The seedling box gripping tool 60 is secured so that the seedling box gripping bar 66 and the seedling box gripping plate 68 are oriented in the longitudinal direction of the seedling box C by gripping the grip 62, and the seedling box gripping bar 66 is attached to one edge of the seedling box C. Engage with the underside. Then, when the lever 71a of the lever arm 71 is pulled toward the grip side with a finger, the seedling box gripping plate 68 is rotated downward to engage with the lower side of the other edge of the seedling box C as shown in FIG. The seedling box is gripped. When the finger is released from the lever 71a, the seedling box holding plate 68 is returned to the original position by the tension of the tension spring 74, and the seedling box is released.
[0019]
When arranging seedling boxes, a root cutting net (not shown) is laid on the ground beforehand. And seedling box arrangement device 1 is provided on rails 2 and 2 so that it can run. When the seedling box transporting carriage 57 loaded with the seedling box travels on the rails 2 and 2 and reaches a position adjacent to the seedling box arranging apparatus 1, the seedling boxes C,. Is transferred onto the seedling box trucks 8 and 8 together with the pallets P and P. Since the seedling box truck 8 is provided with the one-way stoppers 51,..., The seedling box on the seedling box truck 8 is not displaced forward and backward.
[0020]
When the seedling box is transferred to the seedling box trucks 8 and 8, the operator gets on the stepping plates 7 and 7 and uses the seedling box gripping tool 60 to arrange the seedling boxes of the seedling box trucks 8 and 8 on the ground. . In the seedling box positioning method at this time, the contact tools 67 and 67 of the seedling box gripping tool 60 are brought into contact with the rear end positioning plate 28 in the front-rear position (see FIG. 7). As for the left and right positions, the first end abuts the left end face of the seedling box on the right side face of the left left and right positioning disk 26, and the second end faces the right end face of the seedling box on the left side face of the center left and right positioning disk 26. The third contact the left end surface of the seedling box with the right side surface of the central left and right positioning disk 26, and the fourth contact the right end surface of the seedling box with the left side surface of the right left and right positioning disk 26. Contact (see FIG. 3). Thus, if the seedling box positioning frame 5 is used as a positioning reference, the seedling boxes can be arranged accurately and quickly. Further, since the seedling box trucks 8 and 8 are movable on the seedling box positioning frames 5 and 5, the seedling box trucks 8 and 8 can always be stopped near the operator. The seedling box picking up from 8 is easy.
[0021]
During this seedling box arranging work, the footboards 7 and 7 are on the seedling boxes arranged on the ground in the previous seedling box arranging work. For this reason, when the worker moves on the footboards 7 and 7 during the seedling box arranging operation, the seedling box can be automatically embedded in the ground. At this time, the root cutting net is preferably laid in a relaxed state so that the root cutting net does not become an obstacle. When the seedling grows up to a certain size and picks up the seedling box from the ground, the root extending from the seedling box into the ground is cut by the root cutting net by shifting the seedling box with respect to the ground.
[0022]
If the seedling box arrangement work for one horizontal row is completed, any one worker moves up to step 6 (see FIG. 2). Then, the front part of step 6 is rotated downward by the weight W of the operator, and the fixing rods 37, 37 are rotated about the fulcrum shafts 36, 36 in the counterclockwise direction in FIG. By the synergistic action of the pushing up of the fixing rods 37, 37 and the tension of the tension spring 25, the tip ends of the seedling box positioning frames 5, 5 are lifted upward, and the stands 30, 30 are lifted from the ground. The seedling box positioning frames 5 and 5 are fixed in a posture in a V-shape when viewed from the front at a position where the fixing rods 37 and 37 are rotated to a position where they come into contact with the stoppers 38 and 38. As the seedling box positioning frames 5 and 5 are lifted, the outer ends of the footboards 7 and 7 are also lifted. Further, when the front portion of step 6 is rotated downward, the interlocking links 42 and 42 are rotated in the direction in which the outer end side moves upward, and the inner end portions of the tread plates 7 and 7 are also lifted. For this reason, the footboards 7 and 7 are lifted and lifted from the seedling box. When the seedling box positioning frames 5 and 5 are inclined outwardly, the seedling box trucks 8 and 8 naturally roll and move to the inner ends of the seedling box positioning frames 5 and 5.
[0023]
In this state, when the travel switch 55b is pressed, the traveling carriage 3 moves by one pitch and stops. And the seedling box arrangement | work operation is performed similarly to the above.
[0024]
In order to fix the seedling box positioning frames 5 and 5 to a position floating from the ground during traveling, the first example uses the weight of the operator, but other configurations shown below (embodiments of the present invention) May not be used) .
[0025]
In the second example shown in FIG. 13, the inner ends of the seedling box positioning frames 5, 5 are biased downward by a spring 80, and the seedling box trucks 8, 8 are the inner ends of the seedling box positioning frames 5, 5. When the seedling box positioning frames 5 and 5 are lifted by the tension of the spring 80, and the seedling box trucks 8 and 8 move to the outer end side of the seedling box positioning frames 5 and 5, the seedling box trucks The seedling box positioning frames 5 and 5 are configured to rotate downward with the weight of. Reference numeral 81 denotes an attachment attached to the inner ends of the seedling box positioning frames 5 and 5, 82 denotes a wire connecting the attachment and the spring 80, and 83 denotes a pulley for guiding the wire.
[0026]
In the third example shown in FIG. 14, a hydraulic cylinder 85 is provided instead of the spring 80 of the second example, and the seedling box positioning frames 5, 5 are forcibly forced by hydraulic pressure regardless of the positions of the seedling trucks 8, 8. It is the structure rotated up and down.
[0027]
In the fourth example shown in FIG. 15, the seedling box trucks 8, 8 are provided with seedling box positioning frame fixing wheels 87,... Separately from the moving wheels 47, and the traveling carriage 3 has the wheels 87,. When the fitting rail 88 is provided and the seedling carts 8 and 8 are moved to the inner ends of the seedling positioning frames 5 and 5, the wheels 87 are fitted into the rail 88 and the seedling positioning frames 5 and 5 are turned up. It is comprised so that it may fix to the rotated position.
[0028]
In the fifth example shown in FIG. 16, a fixture 81 attached to the inner ends of the seedling box positioning frames 5, 5 and an eccentric shaft 91 driven by a motor 90 are connected via a link 92. The seedling box positioning frames 5 and 5 are rotated up and down by 1/2 turn.
[0029]
【The invention's effect】
As described above, the seedling box arranging device according to the present invention moves with the seedling box loaded on the traveling carriage, so there is no need to transport the seedling box and the seedling box positioning frame is used as a positioning reference. Therefore, the seedling box arranging work can be performed accurately and easily, and the seedling boxes can be arranged on both sides of the rail at the same time. As well as reducing, work efficiency can be improved.
[Brief description of the drawings]
FIG. 1 is a front view showing a seed box arranging operation state of a first example of a seed box arranging apparatus.
FIG. 2 is a front view illustrating a traveling state of the first example of the seedling box arranging device.
FIG. 3 is a plan view of a first example of the seedling box arranging device.
FIG. 4 is a detailed view of the main part of the front surface.
FIG. 5 is a side view partially showing a cross section.
FIG. 6 is a detailed view of a main part of a plane.
FIG. 7 is a side view with a part omitted.
8A is a front view, FIG. 8B is a side view, and FIG.
FIG. 9 is a plan view of an operation box.
FIG. 10 is a flowchart of travel control.
11A is a front view, FIG. 11B is a plan view, and FIG. 11C is a side view of the seedling box gripping tool.
FIG. 12 is a side view showing a use state of the seedling box gripping tool.
13A is a front view and FIG. 13B is a side view of a second example of the seedling box arranging device. FIG.
14A is a front view of a third example of the seedling box arranging device, and FIG. 14B is a side view thereof.
FIG. 15 is a front view of a fourth example of the seedling box arranging device.
FIG. 16 is a front view of a fifth example of the seedling box arranging device.
[Explanation of symbols]
C seedling box 1 seedling box arranging device 2 rail 3 traveling cart 5 seedling box positioning frame 6 step 7 footboard 8 seedling box truck 26 left and right positioning disk 28 rear end positioning plate 60 seedling box gripping tool

Claims (1)

A traveling carriage (3) that can travel on a rail (2) laid on the ground and moves by placing a plurality of seedling boxes, and a pair of left and right seedlings supported by the traveling carriage and projecting on both sides of the rail A box positioning frame (5), and a step (6) that is rotatable up and down is provided behind the traveling carriage. The seedling box positioning frame includes a position near the outside of the rail and the seedling box positioning frame. A left and right positioning disk (26) serving as a reference for determining the left and right positions of the seedling box is provided at the outer end position of the first and second rear positioning plates (28) for positioning the rear end of the seedling box. The seedling box positioning frame is provided so that the tip side moves up and down with the fulcrum shaft as a fulcrum, and the end of the seedling box positioning frame has a lower end portion in a state where the seedling box positioning frame does not rotate upward. Is provided with a stand (30) to ground When the operator moves above the step and rotates downward, the tip end side of the seedling box positioning frame is lifted upward, the stand is lifted from the ground, and the traveling carriage can be moved. A seedling box arranging device characterized by that.

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