JP3825910B2 - Seedling box gripping tool - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seedling box gripping tool used when arranging seedling boxes on the ground or picking up seedling boxes arranged on the ground.
[0002]
[Prior art]
Conventionally, there are seedling boxes for raising seedlings such as paddy rice and vegetables. In this seedling box, after seeding, budding, etc. in a seedling facility, etc., the seedlings are laid out so as to spread on the ground in the nursery house, and when the seedlings are grown to a predetermined size, the seedling box is removed from the ground. They are picked up, transported to the field, and transplanted into the field by a transplanter or the like. In this seedling system, seedling boxes seeded, budding, and the like were lined up one by one in the nursery house by hand.
[0003]
[Problems to be solved by the invention]
For this reason, in the nursery house, the worker has to be in the middle and perform the work of arranging the seedling boxes on the ground, resulting in heavy labor and poor work efficiency. Also, when arranging the seedling boxes in contact with each other so as to lay on the ground in the nursery house in order to arrange as many seedling boxes as possible, the seedling boxes once lowered on the ground are moved on the ground to contact the seedling boxes The work became difficult, and the work efficiency was lowered in the work of arranging the seedling boxes.
[0004]
[Means for Solving the Problems]
The present invention has taken the following technical means to solve the above problems.
That is, a fixed engagement body (7) that includes a main frame (11) and a grip (9) that is gripped by an operator, and that engages with both opposing ends (2, 2) of the seedling box (1) , and is movable. An engagement body (8) is provided at the lower part of the main frame (11), and the movable engagement body (8) has its tip end (8a) turned to the fixed engagement body (7) side to end the seedling box (1). The state in which it engages with the part (2) and the state in which the tip part (8a) rotates to the opposite side of the seedling box (1) and releases the engagement with the end part (2) of the seedling box (1). It is set as the structure switched, and this seedling box (1) dropped to the ground in the state which canceled the engagement with the edge part (2 ) of the seedling box (1) of the said movable engagement body (8) is a fixed engagement body (7). in seedling box gripper, characterized in that provided the movable engaging member (8) rotation axis for moving the press to the side engagement is released by the (22a) to the main frame (11) It was.
[0005]
【The invention's effect】
Therefore, the seedling box gripping tool of the present invention mainly has the rotation shaft (22a) for pushing and moving the seedling box lowered onto the ground to the side where the engagement by the movable engaging body (8) is released on the ground. since is provided on the frame (11), when aligned by bordered one another seedling box as laid on the ground in the nursery house, the movable engaging member in order to release the engagement of the movable engaging member (8) (8) There space between seedling box that has already been arranged on the ground side of the seedling box on the side that engages - taking scan down on the ground seedling box by the space - side movable engaging body of taking a scan ( 8) Disengagement of the seedling box that has been lowered to the ground by releasing the engagement and rotating it around the rotation shaft (22a) as it is is engaged by the movable engagement body (8) with the fixed engagement body (7) on the ground. There the press to the side is released space - to eliminate scan already against the seedling box are arranged on the ground It can be moved position to be.
[0006]
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 seedling boxes once lowered on the ground are moved on the ground so that the seedling boxes are in contact with each other. Since the work to be performed can be continuously performed from the work of lowering the seedling box to the ground, the work of arranging the seedling boxes so as to be spread on the ground can be easily performed, and the work efficiency of the work can be improved.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a seedling box 1 for cultivating mat-shaped paddy rice seedlings. This seedling box 1 has four sides so that mat seedlings having a rectangular shape with a length of about 60 cm and a width of about 30 cm can be raised. The side walls 2, 2, 3, 3 and the bottom plate 4 are 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 innumerable drain holes 5. Water that has not been held in the seedling culture soil and has fallen to the bottom of the seedling box 1 is drained from the drain holes 5. Excess water that has fallen into the seedling box 1 is discharged from the seedling box 1. Further, the outer peripheral portion of the seedling box 1 is formed in a bowl shape in which the side walls 2, 2, 3, and 3 are bent downward on the outer side of the upper end.
[0008]
In the seedling raising facility, the seedling box 1 is filled with floor soil, seed pods are sowed and covered, seeded in the nursery house, budding, and grown until the seedlings have a predetermined size. Alternatively, the seedling box 1 may be bred until it reaches a predetermined size in a nursery house in a state of being sprouted slightly after sowing and covering.
Next, the seedling box holding tool 6 that holds the seedling box 1 will be described.
[0009]
2 and 3 show a seedling box gripping tool 6, which includes a fixed engagement body 7 that engages with the side walls 2 and 2 at both ends along the longitudinal direction of the seedling box 1. The movable engagement body 8 includes a grip 9 held by an operator, and a movable engagement body operation lever 10 that is an operation means for performing a movable operation of the movable engagement body 8.
The seedling box gripping tool 6 includes a main frame 11 composed of a circular pipe bent in a U shape in a side view, and two pieces extending in the left-right direction below the main frame 11. The angular frames 12 and 13 are fixed. Of the two square frames 12 and 13, fixed engagement body fixing members 14 and 14 formed of circular bars bent in an L shape in a side view are provided at both ends of one of the square frames 12. Is fixed, and a fixed engagement body 7 composed of a circular bar extending in the left-right direction is fixed to the fixing members 14, 14.
[0010]
The movable engagement body support plates 15 and 15 are fixed to both end portions of the other of the two angular frames 12 and 13, and the holes 15a of the plates 15 and 15 are fixed. , 15a is fixed to a movable engagement body rotating shaft 16 which is formed of a plate bent in an L shape in a side view. A movable engagement body operating lever 10 is provided below the grip 9. This movable engagement body operation lever 10 is fixed to a lever attachment plate 17 attached to the main frame 11 so as to rotate about the rotation shaft 17a. The arm plate 18 fixed to the movable engaging member rotating shaft 16 and the lever mounting plate 17 are connected by a connecting rod 19. Therefore, when the operator holding the grip 9 grasps and operates the movable engagement body operation lever 10, the movable engagement body 8 is directed so that the distal end portion 8a of the movable engagement body 8 facing downward faces the fixed engagement body 7 side. The united body 8 rotates about 90 degrees. A spring 20 is applied between the middle portion 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 and the lever mounting plate. The plate 17 stops when it contacts the main frame 11 on the front side of the plate 17. The connecting rod 19 is provided with a turnbuckle 19a provided in the middle of the rod 19, and the turning position of the movable engagement body 8 is adjusted by adjusting the rod length of the connecting rod 19 with the turnbuckle 19a. It can be done.
[0011]
Further, a seedling box moving roller 22 that is rotatable via a U-shaped seedling box moving roller support plate 21 that is U-shaped in plan view is provided at a substantially central portion of the main frame 11 in the vertical direction. 22 is located at the front end of the seedling box gripping tool 6.
Therefore, when the seedling box 1 is gripped by the seedling box gripping tool 6, the fixed engagement body 7 of the seedling box gripping tool 6 is placed on one of the side walls 2, 2 at both ends along the longitudinal direction of the seedling box 1. Hook a stick from the bottom of the seedling box 1. And if the movable engagement body operation lever 10 is grasped, the front-end | tip part 8a of the movable engagement body 8 will be below the bowl shape of the upper end of the side wall 2 opposite to the side wall 2 with which the fixed engagement body 7 of the seedling box 1 is engaged. Rotate to enter. Thus, the seedling box 1 is gripped by the seedling box gripping tool 6, and the seedling box 1 can be transported by an operator who grips the grip 9 together with the movable engagement body operation lever 10.
[0012]
Further, when releasing the holding of the seedling box 1 held by the seedling box holding tool 6, the movable engagement body operating lever 10 is released in a state where the lower surface of the seedling box 1 is grounded to the ground or the like and the seedling box 1 is supported. And the front-end | tip part 8a of the movable engagement body 8 rotates toward the opposite side of the seedling box 1, and remove | deviates from the lower side of the saddle shape of the side wall 2 of the seedling box 1. And the grip 9 is hold | gripped, the fixed engagement body 7 is removed from the saddle shape of the side wall 2 along the longitudinal direction of the seedling box 1, and the holding of the seedling box 1 is cancelled | released.
[0013]
4 and 5 show a seedling box arranging assisting device 23 for arranging seedling boxes so that the seedling box holding tool 6 spreads the seedling box on the ground. This seedling box arrangement assisting device 23 includes a traveling carriage 25 that travels 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 tread plate 27 connected to the seedling box positioning frame 26, and a seedling box dolly 28 that moves on the seedling box positioning frame 26.
[0014]
As shown in FIG. 6, the traveling carriage 25 includes left and right side plates 29, 29, connection pipes 30... Connecting these both side plates 29, 29, and a connection plate 31, and front and rear end portions of the side plates 29, 29. A pair of left and right front wheels 33 and 33 and rear wheels 34 and 34 are attached to axles 32 and 32 that are rotatably supported. A traveling motor 36 is fixedly provided on a bracket 35 fixed to the left side plate 29, and a sprocket 37 attached to the output shaft of the motor 36 and a sprocket 38 attached to the rear wheel axle 32 are chained. 39 is hung. When the motor 36 is selectively driven in the forward and reverse directions to rotate the rear wheels 34 and 34, the traveling carriage 25 travels on the rails 24 and 24. A control box 40 for controlling the driving of the motor 36 is provided on the two connecting pipes 30 and 30.
[0015]
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 from side to side. On the other hand, the front wheel 33 and the rear wheel 34 on the right side have a smooth outer peripheral surface and are merely placed on the rail 24. This is to prevent the traveling carriage 25 from derailing from the rail 24.24 even if the distance between the left and right rails 24, 24 is somewhat different because the left and right rails 24, 24 are laid on the soil. . The side plates 29 and 29 are provided with scrapers 41 for removing dirt and the like attached to the wheels 33, 33, 34 and 34, respectively.
[0016]
The seedling box positioning frame 26 is a rectangular frame that is long in the horizontal direction and includes a front pipe 42, a rear pipe 43, a right pipe 44, and a left pipe 45. It is supported so as to be rotatable around 46. The seedling box positioning frame 26 can position four seedling boxes 1... In the right and left direction on the right side of the rails 24, 24. A right / left positioning disk 47 for determining the left / right position of the leftmost seedling box 1 is provided on the right side of the rails 24, 24 of the seedling box positioning frame 26. The left and right positioning disks 47 are rotatably attached to an arm 48 that is rotatably supported by the front pipe 42. For this reason, even if the ground is uneven, the left and right positioning disk 47 is always in contact with the ground, so that the right and left positioning of the seedling box 1 can be reliably performed.
[0017]
In addition, on the rear side of the front pipe 42, front and rear positioning plates 49 and 49 for positioning the seedling box 1 in the front and rear direction are fixed in the vertical direction.
The right pipe 44 is provided with a sled stand 50 whose front and rear ends are warped upward so that the height can be adjusted. In addition, the front pipe 42 and the rear pipe 43 are divided into left and right parts in the middle, and both left and right parts are joined by clamps 51 and 51. When not in use, the right parts 42a and 43a are removed and the seedling box is removed. The left and right width of the alignment aid 23 can be reduced.
[0018]
On a support frame 52 that protrudes 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 53 a for switching between forward, reverse, and stop, a travel switch 53 b for continuously traveling, and an inching switch 53 c for slightly traveling. Provided.
[0019]
The tread plate 27 is arranged behind the seedling box positioning frame 26 on the right side of the rails 24, 24, and the right end thereof is suspended by a hanging bracket 55 on the tip of an arm 54 fixed to the seedling box positioning frame 26. At the same time, the left end portion is suspended from the right end portion of the interlocking link 56 provided so as to be rotatable around the rotation shaft 56 a on the back surface portion of the connecting plate 31 of the traveling carriage 25 by a suspension fitting 55.
[0020]
Step 57 is a means for lifting the seedling box positioning frame 26 and is arranged below the left end portion of the seedling box positioning frame 26, so that the left end portion can freely rotate on the support member 58 fixed to the seedling box positioning frame 26. The pin 60 fixed to the seedling box positioning frame 26 is loosely fitted in the elongated hole 59a of the mounting plate 59 attached to the right end portion. Further, an L-shaped metal fitting 61 is fixed to the right end portion of the step 57, and the left end portion of the interlocking link 56 is engaged with a lower side of the bolt 62 screwed to the L-shaped metal fitting 61.
[0021]
As shown in FIG. 7, the seedling box truck 28 is configured by combining horizontal pipes 63, 63 in the left-right direction and longitudinal pipes 64 in the front-rear direction provided thereon, and a shaft in the front-rear direction at the lower four corners. 65a... Wheels 65 that are rotatable around are provided. The wheels 65 are configured to roll on the front pipe 42 and the rear pipe 43 of the seedling box positioning frame 26. Between the vertical pipes 64, left and right seedling box transport rollers 66 are provided for two left and right rows. One-way stoppers 68 urged forward and backward by torque springs 67 are provided at the front and rear ends of the vertical pipes 64 on both the left and right sides, and the seedling boxes are placed on the seedling box transport rollers 66 from the front and rear sides. 1 can be transferred, but the seedling boxes 1 are not moved in the opposite direction. The right vertical pipe 64 is provided with a moving handle 69.
[0022]
The seedling box transporting carriage 70 is a truck for transporting the seedling box 1 into the nursery house, and travels on the same rails 24 and 24 as the traveling carriage 25 of the seedling box arranging assisting device 23. Two sets of stacked seedling boxes 1 can be stacked on the rollers 71 of the seedling box transport carriage 70 in parallel in the left-right direction so that the longitudinal direction is front-rear. The rollers 71 are substantially the same height as the seedling box conveying rollers 66 of the seedling box truck 28 in a state where the seedling box positioning frame 26 is horizontal.
[0023]
When arranging seedling boxes, a root cutting net (not shown) is laid on the ground beforehand. A seedling box arranging assisting device 23 is provided on the rails 24, 24 so as to be able to travel, and the seedling box transporting carriage 70 loaded with the seedling boxes 1. When reaching the position adjacent to the seedling box, the seedling boxes 1 loaded on the seedling box transport carriage 70 are transferred together with the pallet 72 onto the seedling box truck 28. Since the seedling box truck 28 is provided with the one-way stoppers 68, the seedling boxes 1 transferred to the seedling box truck 28 are not displaced forward and backward.
[0024]
When the seedling boxes 1 are transferred to the seedling box truck 28, an operator gets on the tread board 27 and uses the seedling box gripping tool 6 to arrange the seedling boxes 1 of the seedling box truck 28 on the ground. At this time, the seedling box 1 is positioned using the seedling box arranging aid 23, but the lateral side wall 3 of the first seedling box 1a is placed on the right and left positioning discs 47 on the right and left sides. The seedling box holding tool 6 is lowered so that the seedling box 1 is placed on the ground through the inside of the seedling box positioning frame 26 from above and the seedling box 1 is 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 lateral direction are in contact with each other, and the seedling box 1a is placed on the right side of the seedling box 1a arranged in front. The seedling boxes 1 are arranged on the ground by the box gripping tool 6 and arranged in the same manner on the right side of the seedling box 1 previously arranged on the ground so as not to leave a gap between them. In addition, since the seedling box truck 28 can be moved on the seedling box positioning frame 26, the seedling box truck 28 can always be stopped near the operator, and the workability of the seedling box arranging work is improved.
[0025]
When the arrangement of the four seedling boxes 1 in the left-right direction is completed, the operator gets on the step 57. Then, the seedling box positioning frame 26 rotates about the rotation axis 46 in the front-rear direction with the weight of the operator and rises from the ground, and the right end portion of the tread plate 27 is pulled up. Further, the right end portion of step 57 is rotated downward within the range of the long hole 59a by the weight of the operator, and thereby the left end portion of the tread plate 27 is also lifted through the interlocking link 56, so that the tread plate 27 is lifted. It has become. In this state, the travel switch 53b is pushed, and the travel cart 25 is traveled 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 is lowered onto the ground, and the worker performs the seedling box arrangement work of the next row. At this time, by performing seedling box arranging work using the seedling box gripping tool 6 in a state where the operator is on the tread board 27, the seedling boxes in the previous stroke row already arranged via the tread board 27 with the weight of the operator. Press 1 ... from above.
[0026]
Then, similarly to the previous process, the first seedling box 1 a is positioned by using the left and right positioning disks 47 and aligned. At this time, the seedling box moving roller 22 of the seedling box gripping tool 6 is brought into contact with the front / rear positioning plate 49 to lower the seedling box gripping tool 6 along the front / rear positioning plate 49 so that the seedling box 1 is placed on the ground. In order to allow the movable engagement body 8 of the seedling box gripping tool 6 to be disengaged from the seedling box 1 in a state where it is placed on the ground, it is placed on the ground with a space in the front-rear direction and the seedling box 1 in the front stroke row. Then, in a state where the movable engagement body operation lever 10 of the seedling box gripping tool 6 is released and the engagement of the movable engagement body 8 is released, the seedling box moving roller 22 is brought into contact with the front / rear positioning plate 49 and is lowered. By rotating the box gripping tool 6 about the rotation shaft 22a of the seedling box moving roller 22, the seedling box 1 is pushed backward by the fixed engagement body 7 of the seedling box gripping tool 6 and moved on the ground. The space with the seedling box 1 is eliminated and the seedling box 1 is arranged. And the engagement with the seedling box 1 and the fixed engagement body 7 is cancelled | released, and it moves to the operation | work which arranges the next seedling box 1. As shown in FIG. Therefore, the seedling box moving roller 22 serves as a seedling box moving means for moving to the side where the engagement by the movable engagement body 8 is released. Accordingly, the seedling box can be moved while the seedling box moving roller 22 is brought into contact with the front-rear positioning plate 49, and the operation of spreading the seedling box can be easily performed.
[0027]
Similarly, the nursery house is arranged 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 between them and by arranging the seedling boxes 1 with the rear seedling boxes 1 in between. The seedling boxes 1 can be arranged so as to spread on the inner ground.
Accordingly, the seedling box gripping tool 6 is provided with a seedling box moving roller 22 for moving the seedling box 1 lowered to the ground to the rear side on which the engagement by the movable engagement body 8 is released. 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 rear side portion to which the movable engagement body 8 engages is released in order to release the engagement of the movable engagement body 8. A space with the rear seedling box 1 already arranged on the ground is taken to lower the seedling box 1 to the ground, the engagement of the movable engaging body 8 on the side where the space is taken is released, and the above-mentioned The seedling box 1 lowered to the ground by the seedling box moving roller 22 can be moved to a position in contact with the rear seedling box 1 so as to eliminate the space on the ground.
[0028]
Therefore, with this seedling box gripping tool 6, the seedling box 1 can be arranged on the ground by an operator holding the grip 9 with one hand and bending the upper body and knees slightly, and the seedling box arranging work becomes easy. When the seedling boxes 1 are arranged in contact with each other in the front-rear direction so as to spread on the ground in the nursery house, the seedling boxes 1 are placed on the ground so that the seedling boxes 1 are brought into contact with each other from the operation of lowering the seedling boxes 1 to the ground. Since the seedling box moving roller 22 is continuously brought into contact with the front / rear positioning plate 49 until the rearward movement work, the work of arranging the seedling boxes 1 so as to be spread on the ground can be easily performed, and the work efficiency of the work can be improved. Improvements can be made.
[0029]
The front / rear positioning plate 49 is provided with innumerable vertical grooves (not shown) that coincide with the seedling box moving roller 22 in parallel to the left and right so that the seedling box gripping tool 6 does not tilt to the left and right. When the seedling box arranging operation is performed while lowering the seedling box moving roller 22 along the direction, the seedling boxes 1 can be accurately arranged so as not to be tilted in the left-right direction or to be shifted in the left-right position in plan view.
[0030]
11 and 12, the seedling box arranging assisting device 23 may be configured such that the seedling boxes 1 are arranged on the left and right with respect to the rails 24 and 24. This seedling box arrangement assisting device 23 is provided with left and right positioning disks 47, 47 on the left and right sides of the rails 24, 24, respectively, so that four seedling boxes 1,. ing. Then, a step 57 is provided on the rear side of the traveling carriage 25, and when the operator rides on the step 57, the left and right seedling box positioning frames 26, 26 and the left and right footboards 27, 27 are lifted at the same time. It is designed to run.
[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 gripping tool. FIG. 3 is a bottom view showing a seedling box gripping tool. [FIG. 6] (a) Rear view, (b) Plan view, (c) Side view [FIG. 7] (a) Rear view showing the seedling box dolly. (B) Plan view, (c) Side view [FIG. 8] Rear view showing the relationship between the traveling carriage and the seedling box positioning frame. [FIG. 9] The seedling box arranging assist device in a state where the seedling box positioning frame is lifted. Rear view [Fig. 10] Side view showing a state where the seedling box is moved rearward [Fig. 11] Rear view showing another seedling box arrangement assisting instrument [Fig. 12] Plan view showing another seedling box arranging assisting instrument Explanation of]
DESCRIPTION OF SYMBOLS 1 ... Seedling box, 2, 2 ... Longitudinal side wall (end of seedling box) of seedling box, 6 ... Seedling box gripping tool, 7 ... Fixed engagement body, 8 ... Movable engagement body, 8a ... Tip of movable engagement body Part, 9 ... grip, 11 ... main frame, 22a ... rotating shaft

Claims (1)

A fixed engagement body (7) and a movable engagement body, which are provided with a main frame (11) and a grip (9) held by an operator, and are engaged with both opposing ends (2, 2) of the seedling box (1). (8) is provided at the lower part of the main frame (11), and the movable engagement body (8) has its distal end (8a) turned to the fixed engagement body (7) side and the end of the seedling box (1) ( 2) A configuration in which the state is engaged and the state where the tip (8a) is rotated to the opposite side of the seedling box (1) and released from the end (2) of the seedling box (1) is switched. and then, the movable engaging member (8) seedling box (1) ends (2)該苗box with down on the ground in a state of releasing the engagement of the of the (1) in a fixed engager (7) A seedling box gripping tool characterized in that the main frame (11) is provided with a pivot shaft (22a) for pushing and moving to the side where the engagement by the movable engagement body (8) is released.

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