JPH11289878A - Seedling box-holding tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling box-holding tool capable of successively carrying out a series of operations from the operation for unloading the seedling boxes on a ground to the operation for moving the seedling boxes unloaded on the ground, on the surface of the ground so as to contact with each other when arranging the seedling boxes in a seedling-raising house so that the seedling boxes may be arranged on the ground in the seedling-raising house in a mutually contacting state so as to cover the ground with the seedling boxes. SOLUTION: This seedling box-holding tool 6 constituted so that a seedling box 1 may be held by engaging a fixed engaging body 7 and a movable engaging body 8 of side walls 2 of both facing end parts of the seedling box 1 has a roller 22 for moving the seedling box 1 unloaded on a ground by releasing the engage between the movable engaging body 8 and the side wall 2 of the seedling box 1, to a movable engaging body 8 side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling box gripper used when arranging seedling boxes on the ground or picking up seedling boxes arranged on the ground.

[0002]

2. Description of the Related Art Conventionally, there is a seedling box for raising seedlings such as paddy rice and vegetables. In this seedling box, seeding at nursery facilities,
After the germination, etc., the seedlings are laid out on the ground in the nursery house, and the seedlings are grown.When the seedlings have grown to a predetermined size, the seedling box is taken out of the ground, transported to the field, and transplanted. It is to be transplanted in the field. In this seedling raising system, seedling boxes in which seeding, budding, etc. have been performed are manually arranged one by one in the seedling raising house.

[0003]

For this reason, in the nursery house, the worker has to work to set the seedling boxes on the ground in the middle of the stomach, resulting in heavy labor and poor work efficiency. In order to arrange as many seedling boxes as possible, the seedling boxes are brought into contact with each other so as to be laid on the ground in the nursery house. The work becomes difficult, and the work efficiency is reduced in the work of arranging the seedling boxes.

[0004]

The present invention takes the following technical means to solve the above-mentioned problems. That is, seedling box 1
The engaging members 7 and 8 are engaged with each of the opposite end portions 2 and 2 to grip the seedling box 1, and at least one of the engaging members 7 and 8 is connected to the end of the seedling box 1. The seedling box 1 that has been disengaged from the ground 2 and lowered to the ground is
A seedling box gripper is provided, which is provided with a seedling box moving means 22 for moving the seedling box 8 to the side where the engagement by the nut 8 has been released.

[0005]

Therefore, the seedling box gripper of the present invention is provided with the seedling box moving means for moving the seedling box lowered on the ground to the side where the engagement by the engaging body is released on the ground. Therefore, when the seedling boxes are arranged in contact with each other so as to be spread on the ground in the nursery house, the ground is already provided on the side of the seedling box on the side where the engaging body engages in order to release the engagement of the engaging body. Take the space with the seedling boxes arranged in a row and lower the seedling box to the ground, disengage at least the engaging body on the side where the space was taken, and leave the seedling box on the ground by the seedling box moving means as it is. The lowered seedling box can be moved on the ground to a position where it comes into contact with the seedling boxes already arranged on the ground so as to eliminate the space.

Therefore, when the seedling boxes are brought into contact with each other so as to be laid on the ground in the nursery house by the seedling box holding tool of the present invention, the seedling boxes once lowered on the ground so that the seedling boxes are brought into contact with each other are grounded. Since the operation of moving the seedling boxes on the ground can be performed continuously from the operation of lowering the seedling boxes on the ground, the operation of arranging the seedling boxes so as to be laid on the ground can be easily performed, and the work efficiency of the work can be improved.

[0007]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a seedling box 1 for cultivating a mat-shaped paddy rice seedling.
m, rectangular side walls 2,2,3,3 and bottom plate 4
Is provided and the upper part is opened. The four side walls 2, 2, 3, 3 are provided so that the height from the upper surface of the bottom plate 4 is 29 to 30 mm.
The bottom plate 4 is provided with countless drainage holes 5. Water that is not held by the seedling cultivation and falls to the bottom of the seedling box 1 is drained from the drainage holes 5. The excess water that has dropped into the seedling box 1 is discharged from the seedling box 1. The outer peripheral portion of the seedling box 1 has the side walls 2, 2,
The hooks 3 and 3 are bent downward on the outside of the upper end.

[0008] In the seedling raising facility, the seedling box 1 is filled with floor soil, seeds are sown, covered with soil, arranged in a seedling raising house, and germinated until the seedlings reach a predetermined size. . Alternatively, the seedling box 1 may be arranged in a nursery house in a state where the seedlings have been slightly germinated after being seeded and covered with soil, and the seedlings may be raised until the seedlings reach a predetermined size. Next, the seedling box gripper 6 for gripping the seedling box 1 will be described.

FIGS. 2 and 3 show a seedling box holding tool 6, which is fixed to the side walls 2 at both ends along the longitudinal direction of the seedling box 1. As shown in FIG. The union 7 and the movable engagement body 8, the grip 9 gripped by the worker, and the movable engagement body 8
And a movable engagement body operation lever 10 which is an operation means for performing the movable operation of. The seedling box gripper 6 includes a main frame 11 composed of a circular pipe bent in a U-shape in a side view, and two lower left portions of the main frame 11 extending in the left-right direction. In this configuration, the square frames 12, 13 are fixed. At both ends of one of the two square frames 12, 13, a fixed engaging member fixing member 1 formed of a circular rod bent in an L-shape in a side view.
The fixed engaging members 7 are fixed to the fixing members 14 and 14 and are formed of circular rods extending in the left-right direction.

[0010] Of the two square frames 12 and 13,
Movable engaging body supporting plates 15 are fixed to both ends of the other square frame 13, and holes 1 of the plates 15 are fixed.
A movable engagement body 8 composed of a plate bent in an L-shape in a side view is fixed to a movable engagement body rotation shaft 16 inserted into 5a, 15a. A movable engagement body operation lever 10 is provided below the grip 9. The movable engagement body operation lever 10 is fixed to a lever mounting plate 17 which is mounted on the main frame 11 so as to rotate around a rotation shaft 17a. The arm plate 18 fixed to the movable engagement member rotating shaft 16 and the lever mounting plate 1
7 is connected by a connecting rod 19. Therefore, when the operator holding the grip 9 operates the movable engagement body operation lever 10, the movable engagement body 8 moves downward so that the distal end portion 8 a of the movable engagement body 8 faces the fixed engagement body 7. The combination 8 rotates about 90 degrees. A spring 20 is hung between the middle part of the connecting rod 19 and the lever mounting plate 17, and the connecting rod 19 is urged forward and upward by the spring 20 so that the lever mounting plate 17 is pressed. Plate 17 is the main frame in front of the plate 17
It stops in a state where it comes into contact with the system 11. Further, the connecting rod 19 includes a turnbuckle 19a provided at an intermediate portion of the rod 19, and the turnbuckle 19a
By adjusting the rod length of the connecting rod 19 in a, the turning position of the movable engagement body 8 can be adjusted.

A rotatable seedling box moving roller 22 is provided at a substantially central portion in the vertical direction of the main frame 11 via a U-shaped seedling box moving roller support plate 21 in plan view. The transfer roller 22 is located at the front end of the seedling box gripper 6. Therefore, the seedling box 1 is attached to the seedling box gripper 6.
When holding the seedling box 1, the circular rod of the fixed engaging body 7 of the seedling box holding tool 6 is hooked from below the seedling box 1 on one hook of the side walls 2 at both ends along the longitudinal direction of the seedling box 1. When the movable engaging body operation lever 10 is gripped, the distal end portion 8a of the movable engaging body 8 is hooked below the upper end of the side wall 2 opposite to the side wall 2 with which the fixed engaging body 7 of the seedling box 1 is engaged. Rotate to enter. As a result, the seedling box 1 is held by the seedling box gripper 6, and the operator holding the grip 9 together with the movable engaging body operation lever 10 can transport the seedling box 1.

When releasing the holding of the seedling box 1 gripped by the seedling box holding tool 6, the lower surface of the seedling box 1 is grounded to the ground or the like, and the movable engagement member operating lever is held while the seedling box 1 is supported. When the release 10 is released, the distal end portion 8a of the movable engagement body 8 rotates toward the opposite side of the seedling box 1 and comes off from the hook-shaped lower portion of the side wall 2 of the seedling box 1. Then, by gripping the grip 9, the fixed engagement body 7 is removed from the hook shape of the side wall 2 along the longitudinal direction of the seedling box 1, and the holding of the seedling box 1 is released.

FIGS. 4 and 5 show a seedling box arranging assisting device 23 for arranging seedling boxes so as to be laid on the ground in the nursery house by the seedling box gripping tool 6. The seedling box arranging assisting device 23 includes a traveling carriage 25 traveling on two traveling rails 24, 24 laid in parallel on the ground in the nursery house, and a seedling box positioning frame supported by the traveling carriage 25. 26, a step board 27 connected to the seedling box positioning frame 26 and a seedling box minecart 28 moving on the seedling box positioning frame 26 are provided.

As shown in FIG. 6, the traveling vehicle 25 includes left and right side plates 29, 29, a connecting pipe 30 for connecting the both side plates 29, 29, and a connecting plate 31, and the side plates 29, 2
9, an axle 32 rotatably supported at the front end and the rear end,
32, a pair of left and right front wheels 33, 33 and rear wheels 34, 34 are attached. Bracket 3 fixed to left side plate 29
5, a traveling motor 36 is fixedly provided.
6 and the rear wheel axle 3 attached to the output shaft 6
A chain 39 is hung on the sprocket 38 attached to the second sprocket. When the motor 36 is selectively driven in the forward and reverse directions to rotate the rear wheels 34, 34, the traveling vehicle 25
On the vehicles 24, 24. Two connecting pipes 30, 3
Above 0, a control box 40 for controlling the driving of the motor 36 is provided.

The left front wheel 33 and the rear wheel 34 are formed with annular grooves 33a and 34a having a triangular cross section on the outer peripheral surface, and are engaged with the rail 24 so as not to be displaced right and left. On the other hand, the right front wheel 33 and the rear wheel 34 have smooth outer peripheral surfaces, and merely rest on the rail 24. This is to prevent the traveling cart 25 from derailing from the rails 24.24 even if the distance between the left and right rails 24,24 is slightly different because the left and right rails 24,24 are laid on the soil. . Each of the side plates 29, 29 has a wheel 3
Scrapers 41 for removing soil and the like adhering to 3, 33, 34, 34 are provided, respectively.

The seedling box positioning frame 26 is a rectangular frame which is formed by a front pipe 42, a rear pipe 43, a right pipe 44, and a left pipe 45 and is long in the left-right direction when viewed in a plan view. It is supported so as to be rotatable around a rotation shaft 46. The seedling box positioning frame 26 is
The four seedling boxes 1 with the longitudinal direction directed to the right and left can be positioned side by side. On the right side of the seedling box positioning frame 26 immediately above the rails 24, 24,
A left and right positioning disk 47 for determining the left and right position of the seedling box 1 at the left end is provided. The left and right positioning discs 47
Is rotatably attached to an arm 48 rotatably supported by the front pipe 42. Therefore, even if the ground has irregularities, the left and right positioning discs 47 are always in contact with the ground, so that the left and right positioning of the seedling box 1 can be reliably performed.

On the rear side of the front pipe 42, front and rear positioning plates 49, 49 for positioning the seedling box 1 in the front and rear directions are provided fixed in the vertical direction. The right pipe 44 is provided with a sled-shaped stand 50 whose front and rear ends are warped upward to be adjustable in height. Also, the front pipe 4
2 and the rear pipe 43 are divided into right and left parts in the middle part, and have a structure in which both right and left parts are joined by clamps 51, 51. When not in use, the right parts 42a, 43a are detached and the seedling box arranging device 23 The left and right width can be reduced.

On a support frame 52 projecting upward from the left pipe 45, an operation box 53 for operating the traveling carriage 25 is provided. As shown in FIG. 5, the operation box 53 includes a changeover switch 53a for switching between forward, reverse and stop, a traveling switch 53b for continuously traveling, and an inching switch 53c for slightly traveling. Provided.

The step board 27 is disposed behind the seedling box positioning frame 26 at a portion on the right side of the rails 24, 24, and the right end thereof is fixedly provided to the seedling box positioning frame 26.
Of the interlocking link 56 provided at the left end thereof so as to be rotatable around a rotation shaft 56a on the back surface of the connecting plate 31 of the traveling vehicle 25, and the hanging metal fitting 5 is suspended at the left end thereof.
Hanged at 5.

Step 57 is means for lifting the seedling box positioning frame 26, which is disposed below the left end of the seedling box positioning frame 26, and the left end of which is rotated by the support member 58 fixed to the seedling box positioning frame 26. While being movably supported,
A pin 60 fixed to the seedling box positioning frame 26 is loosely fitted in the long hole 59a of the mounting plate 59 attached to the right end. Further, an L-shaped fitting 61 is fixed to the right end of the step 57, and the left end of the interlocking link 56 is engaged below the bolt 62 screwed to the L-shaped fitting 61.

The seedling box trolley 28 is, as shown in FIG.
Wheels 65 rotatable around front-rear shafts 65a at lower four corners are formed by combining horizontal pipes 63 in the left-right direction and vertical pipes 64 in the front-rear direction provided thereon.
... is provided. The wheels 65...
6 rolls on the front pipe 42 and the rear pipe 43. Between the vertical pipes 64, right and left seedling box transport rollers 66 are provided in two rows on the left and right. At the front and rear ends of the left and right vertical pipes 64, one-way stoppers 68 urged forward and rearward by torque springs 67 are provided.
.. Can be transferred to the top, but the seedling boxes 1... Do not move in the opposite direction. The right vertical pipe 64 is provided with a handle 69 for movement.

The seedling box transport trolley 70 is a trolley for transporting the seedling box 1 into the nursery house.
The vehicle travels on the same rails 24, 24 as the traveling vehicle 25. The rollers 71 of the seedling box transport trolley 70 ...
Two sets of stepped seedling boxes 1... Can be stacked side by side so that the longitudinal direction faces forward and backward. The rollers 71 have substantially the same height as the seedling box transport rollers 66 of the seedling box truck 28 with the seedling box positioning frame 26 in a horizontal state.

When arranging seedling boxes, a root cutting net (not shown) is laid on the ground in advance. And rail 2
The seedling box arranging assisting device 23 is provided so as to be able to travel on the seedling boxes 4, 24, and the seedling box transporting trolley 70 on which the seedling boxes 1.
4 and 24, when reaching the position adjacent to the seedling box arranging auxiliary device 23, the seedling boxes 1...
Transfer to above 8. Since the one-way stoppers 68 are provided on the seedling box trolley 28, the seedling boxes 1 transferred to the seedling box trolley 28 are not displaced forward and backward.

When the seedling boxes 1 have been transferred to the seedling box trolley 28, an operator rides on the tread plate 27, and the seedling boxes 1 of the seedling box trolley 28 Line up. At this time, the seedling box 1 is positioned by using the seedling box arranging assisting device 23. Regarding the left and right positions, the lateral side wall 3 of the first seedling box 1a is placed on the right and left positioning disc 47 on the right side. The seedling box holding tool 6 is lowered so that the seedling box 1 is placed on the ground through the seedling box positioning frame 26 from above, and the seedling boxes 1 are arranged on the ground. Then, the seedling box 1a positioned right and left using the left and right positioning disk 47 and the side walls 3 and 3 in the short direction contact the next seedling box 1b in front of the seedling box 1a. The seedling boxes 1 are arranged on the ground by the box gripper 6, and are similarly arranged on the right side of the seedling boxes 1 arranged on the ground so that no gap is left therebetween.
A total of four seedling boxes 1 are arranged in the horizontal direction. Since the seedling box minecart 28 is movable on the seedling box positioning frame 26,
The seedling box truck 28 can always be stopped near the worker, and the workability of the seedling box arranging operation is improved.

When the work of arranging a total of four seedling boxes 1 in the left-right direction is completed, the operator gets on step 57. Then, the seedling box positioning frame 26 rotates around the rotation shaft 46 in the front-rear direction by the weight of the worker and rises from the ground,
The right end of the tread 27 is raised. In addition, the right end of the step 57 rotates downward within the range of the elongated hole 59a with the weight of the operator, whereby the left end of the step board 27 is also pulled up via the interlocking link 56, so that the step board 27 rises. Has become. In this state, the traveling switch 53b is pressed, and the traveling cart 25 is caused to travel until the seedling box positioning frame 26 moves to an appropriate position. Then, when the operator descends from step 57, the seedling box positioning frame 26
Descends on the ground, and the worker performs the work of arranging seedling boxes in the next row. At this time, by performing the seedling box arranging operation using the seedling box gripping tool 6 with the worker riding on the tread plate 27,
The seedling boxes 1... Of the previous stroke row which have already been arranged are pressed down from above by the weight of the operator via the step board 27.

Then, as in the previous process, the first seedling box 1a
Are positioned side by side using the left and right positioning discs 47. At this time, the seedling box holding roller 6 of the seedling box holding tool 6 is brought into contact with the front / rear positioning plate 49 to lower the seedling box holding tool 6 along the front / back positioning plate 49 so that the seedling box 1 is placed on the ground. In such a state, the movable engaging member 8 of the seedling box gripper 6 can be disengaged from the seedling box 1 and is placed on the ground with a space in the front-rear direction in the front and rear seedling boxes 1. Then, the movable engaging body operation lever 10 of the seedling box gripper 6 is moved.
In a state where the engagement of the movable engaging member 8 is released, the seedling box moving tool 22 is brought into contact with the front and rear positioning plate 49 and lowered, and the seedling box gripping tool 6 is moved to the seedling box moving roller 2.
The seedling box 1 is pushed backward by the fixed engaging member 7 of the seedling box gripping tool 6 to move on the ground by rotating about the second rotation shaft 22a, and the seedling is removed by eliminating the space with the seedling box 1 at the rear. Line up Box 1. Then, the engagement between the seedling box 1 and the fixed engagement body 7 is released, and the operation shifts to the operation of arranging the next seedling box 1. Therefore, the seedling box moving roller 22 serves as a seedling box moving means for moving the seedling box moving roller 22 to the side where the engagement by the movable engagement body 8 is released. Thereby, the seedling box can be moved while bringing the seedling box moving roller 22 into contact with the front and rear positioning plate 49,
The work of spreading seedling boxes can be performed easily.

Similarly, by arranging the seedling boxes 1 on the right side of the seedling boxes 1 arranged on the ground in the left-right direction so as not to leave a gap therebetween, and by filling the space between the seedling boxes 1 on the rear side, the seedling boxes 1 are arranged. The seedling boxes 1 can be arranged so as to be laid on the ground in the nursery house. Therefore, the seedling box gripper 6 is provided with the seedling box moving roller 22 for moving the seedling box 1 dropped on the ground to the rear side where the engagement by the movable engaging member 8 is released on the ground. When the seedling boxes 1 are arranged in contact with each other in the front-rear direction so as to be laid on the ground in the seedling raising house, a rear side portion with which the movable engagement body 8 is engaged to release the engagement of the movable engagement body 8 is provided. Space is taken with the rear seedling box 1 already arranged on the ground, the seedling box 1 is lowered to the ground, and the engagement of the movable engaging body 8 on the side where the space is taken is released, and the above-mentioned state is maintained. The seedling box 1 that has been lowered to the ground by the seedling box moving roller 22 can be moved on the ground to a position where it comes into contact with the rear seedling box 1 so as to eliminate the space.

Thus, the seedling box gripping tool 6 allows the operator to hold the grip 9 with one hand and bend the upper body and knees slightly to arrange the seedling boxes 1 on the ground. When the seedling boxes 1 are arranged in contact with each other in the front-rear direction so as to be spread on the ground in the nursery house, the seedling boxes 1 are brought into contact with each other so that the seedling boxes 1 are brought into contact with each other from the operation of lowering the seedling boxes 1 on the ground. Since it is possible to continuously move the seedling box moving roller 22 against the front and rear positioning plate 49 until the operation of moving the seedling box 1 backward on the ground, the operation of arranging the seedling boxes 1 so as to be spread over the ground can be easily performed, and Work efficiency can be improved.

The front and rear positioning plate 49 is provided with an infinite number of vertical grooves (not shown) that match the seedling box moving rollers 22 so as to be parallel to the left and right, so that the seedling box gripper 6 does not tilt left and right. When the seedling box arranging operation is performed while lowering the seedling box moving roller 22 along the groove, the seedling box 1
Can be easily arranged accurately so as not to be inclined in the left-right direction or to be displaced in the left-right direction.

As shown in FIGS. 11 and 12, the seedling box arranging assisting device 23 may be configured so that the seedling boxes 1 can be arranged on the left and right with respect to the rails 24, 24. The seedling box arrangement assisting device 23 has left and right positioning disks 47, 47 provided on the left and right sides of the rails 24, 24, respectively, and four seedling boxes 1 on each of the left and right sides of the traveling cart 25.
... are arranged. And the traveling cart 2
5, a step 57 is provided on the rear side, and when the operator gets on the step 57, the left and right seedling box positioning frames 26, 26 and the left and right tread plates 27, 27 simultaneously float to allow the traveling carriage 25 to travel. ing.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a seedling box.

FIG. 2 is a side view showing a seedling box gripper.

FIG. 3 is a bottom view showing a seedling box gripper.

FIG. 4 is a rear view showing a seedling box arrangement assisting device.

FIG. 5 is a plan view showing a seedling box arrangement assisting device.

6 (a) is a rear view, FIG. 6 (b) is a plan view, and FIG.
(C) Side view

7 (a) is a rear view, FIG. 7 (b) is a plan view, and FIG.

FIG. 8 is a rear view showing the relationship between the traveling cart and the seedling box positioning frame.

FIG. 9 is a rear view showing the seedling box arrangement assisting device in a state where the seedling box positioning frame is raised.

FIG. 10 is a side view showing a state where the seedling box is moved backward.

FIG. 11 is a rear view showing another seedling box arrangement assisting device.

FIG. 12 is a plan view showing another seedling box arrangement assisting device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Seedling box, 2, 2 ... Longitudinal side wall of seedling box (end of seedling box), 6 ... Seedling box gripper, 7 ... Fixed engaging body, 8 ... Movable engaging body, 22 ... Seedling box moving roller (Seedling box moving means)

Claims (1)

[Claims] An engaging body (7, 8) is engaged with each of opposite end portions (2, 2) of a seedling box (1) to grip the seedling box (1), and at least one of the engaging bodies (7, 8) is provided. Seedling box moving means 22 is provided for moving one of the seedling boxes 1, which has been disengaged from the end 2 of the seedling box 1 and lowered onto the ground, to the side where the engagement by the engaging members 7, 8 has been released. A seedling box gripper, characterized in that: