JP3304522B2 - Seedling box picking machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling box picking-up machine for picking up seedling boxes that have been raised on the ground.

[0002]

2. Description of the Related Art Conventionally, when picking up seedling boxes that have been raised side by side on the ground, such as in a nursery house, it has been the current practice for workers to pick up seedling boxes one by one directly.

[0003]

Incidentally, the above-mentioned operation of picking up a seedling box is a work requiring a great deal of labor. This is because when seedling boxes are laid side by side on the ground, the roots of the seedlings extend into the soil from a number of holes provided at the bottom of the seedling box, leaving the seedling box stuck to the ground. This is because it requires a great deal of force to pull it off the ground. Also, due to watering, the floor soil in the seedling box holds a lot of water, and the ground becomes muddy, so much mud adheres to the seedling box that the weight of the seedling box to be taken up becomes heavy. That is the factor. However, this work has not been mechanized so far, and labor saving and efficiency have not been achieved. Therefore, an object of the present invention is to reduce labor and efficiency of the seedling box picking operation.

[0004]

Therefore, the following technical measures have been taken to solve the above-mentioned problems. That is, according to the first aspect of the present invention, the seedling box C ...
Seedling box transport device 2 for transferring seedlings from the ground to the airframe and the seedling box
A plurality of seedling boxes C conveyed by the conveying device 2 are placed.
In the seedling box pick-up machine provided with the seedling box mounting part 3, the seedling box
On the front end side of the transport device 2, the upper end side is lower and the rear side is higher.
At least two seedling box rakes 24.2
4 and the seedling box transfer device 2
C ... in the direction opposite to the body running direction
A seedling box pick-up machine characterized in that a plurality of seedling box pick-up machines are configured to be transported in a state of being arranged side by side .

According to a second aspect of the present invention, a seedling box transport device 2 is provided.
, The longitudinal direction of the rectangular seedling box C ...
Conveying in a horizontal state that is horizontal to the direction
The seedling box pick-up machine according to claim 1, wherein:

According to a third aspect of the present invention, there is provided a seedling box transport device 2.
, While seedling box C ...
2. The method according to claim 1, wherein the transfer is performed.
Item 2 is a seedling box picking machine described in Item 2 .

According to a fourth aspect of the present invention, the seedling box mounting portion 3 is raised.
4. The picking-up of the seedling box according to claim 1, which is provided so as to be able to descend.
It is obtained by a machine.

[0008]

In the seedling box picking machine according to the first aspect, the seedling box transport device is provided.
The shape where the upper tip side of the front end side is low and the rear side is high.
When at least two seedling box scooping tools 24, 24 on the left and right sides are brought forward or in contact with the ground or on the ground, the seedling boxes C arranged side by side on the ground in front of the fuselage are satisfactorily seedling box scooping tools 2.
It was scooped from the ground at 4.24,
The seedling box C is transported in the direction opposite to the running
The seedlings are transported continuously on the machine body by a seedling box transporting device 2 that transports a plurality of them in a line in the transport direction . When the seedling boxes C conveyed by the seedling box conveying device 2 are sequentially loaded on the seedling box mounting portion 3 , the picking operation of the seedling boxes C can be continuously performed. Further, the machine body can be moved while a large number of the seedling boxes C picked up in the seedling box mounting portion 3 are mounted.

In the seedling box picking machine according to claim 2,
In addition to the actions described in 1 , the seedling boxes C arranged on the ground ...
Are transported by the seedling box transporting device 2 while the vehicle is running in a horizontal state in which the longitudinal direction of the rectangular seedling boxes C is left and right with respect to the vehicle running direction.

[0010] In the seedling box picking machine according to claim 3 , the claim is provided.
In addition to the operation described in the first or second aspect , the seedling boxes C arranged on the ground are transported by the seedling box transporting device 2 at a speed higher than the vehicle traveling speed during the traveling of the vehicle.

[0011] In the claims 4 seedling box as claimed picking machine according to claim
In addition to the functions described in the first to third aspects, the seedling boxes C that have been picked up from the ground and placed on the seedling box placing part 3 are higher than the ground by raising the seedling box placing part 3. It is easily transferred to a truck bed or the like at the position.

[0012]

According to the first aspect of the present invention, a seedling box transport device 2 is provided.
The upper end of the front end side is low and the rear end is high.
At least two seedling box scooping tools 24, 24 should be grounded or
When approaching the ground and moving forward, the ground ahead of the aircraft
Seedling box C arranged side by side is a good seedling box scooping tool.
The seedling box is scooped from the ground at 24
C ... in the direction opposite to the body running direction
Seedling box transfer device 2 that transfers a plurality of seeds in a line
Is continuously conveyed onto the fuselage. And carry the seedling box
The seedling boxes C conveyed by the feeding device 2 are sequentially placed in the seedling box mounting portion.
3 and pick up the seedling boxes C ... continuously
You. Therefore, many seedling boxes C ...
Picking up seedling boxes efficiently from the ground
It can save labor for picking up seedling boxes.

According to a second aspect of the present invention, the seedling box transfer device 2 is configured to transfer a rectangular seedling box C having a rectangular shape in a plan view in a lateral direction in which a longitudinal direction thereof is a left-right direction with respect to a running direction of the machine. Therefore, in addition to the effect of the invention according to claim 1 , the traveling of the aircraft while picking up one seedling box from the ground onto the aircraft as compared with the case where the seedling boxes C are transported in a vertical state. The distance is short, and thus the seedling box pick-up operation can be performed efficiently with a simple mechanism.

[0014] third aspect of the present invention, the seedling box transport device 2, so that a structure for conveying the Naebako C ... in aircraft traveling at body speed or faster, according to claim 1 or claim 2 In addition to the effects of the described invention, the seedling boxes C are conveyed and picked up on the airframe so as not to cause resistance of the running of the airframe. Therefore, the picking operation of the seedling boxes can be efficiently performed with a simple mechanism.

According to a fourth aspect of the present invention, the seedling box mounting portion 3 is provided.
Since those movable up and down, claims 1 to 3
In addition to the effects of the described invention, the seedling boxes C that have been picked up from the ground and placed on the seedling box
By raising the seedlings, they can be easily transferred from the ground to a truck bed or the like located at a high position, and the transportation after picking up the seedling box can be performed efficiently.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As an embodiment of the present invention, there is a machine configured as a dedicated machine for picking up a seedling box only, but here, a seedling box picking-up machine capable of not only picking up a seedling box but also arranging seedling boxes. An example configured as a seedling box arranging machine will be described as an embodiment. The specific configuration will be described below with reference to the drawings.

The seedling box picking-up machine and the seedling box arranging machine include a traveling device 1 that can move forward and backward, a seedling box transport device 2 in front of the traveling device 1, and a seedling box in the rear side of the traveling device 1. A configuration is provided with a seedling box mounting portion 3 on which C ... can be mounted. Then, when the traveling device 1 is moved forward and the seedling box transport device 2 is transported rearward, the seedling box C is transported from the ground to the traveling device 2 so as to be in a seedling box pick-up operation state, and the traveling device 1 is moved backward. When the seedling box transport device 2 is transported forward while moving, the seedling boxes C are transported from the traveling device 1 to the ground, and a seedling box arranging operation state is set. Further, the seedling box mounting portion 3 has a seedling box housing frame H capable of housing a large number of seedling boxes C.
Is to be placed.

The frame structure of the body is such that a traveling transmission case 4 is provided on the rear side, a rear frame 5 is fixed on the front side, an intermediate transmission case 6 is fixed on the front end, and a front frame 7 is fixed on the front side. Is fixed, and a transport mission case 8 is fixed to the front end thereof. As described above, the three transmission cases 4, 6, and 8 are arranged in the middle between the front and rear, and are connected to each other by the frames 5, 7 to form an airframe. An engine E for driving the traveling device 1 and the seedling box transport device 2 and the like is mounted on an engine mounting table 4a fixed to a rear portion of the traveling transmission case 4. Further, the handle 9 is provided such that the left and right grip portions are disposed above the engine E,
The handle base is provided so as to be detachably attached to the upper side of the traveling transmission case 4 on the front side of the engine E. The handle 9 is provided with handle base mounting portions on both the left and right sides so that the handle 9 can be arbitrarily replaced on the left and right sides of the seedling box mounting portion 3.

The traveling device 1 is constituted by a crawler type traveling device. Specifically, the crawler drive shaft 10 protrudes from the left and right sides of the rear traveling transmission case 4.
The crawler driving wheels 11 are attached to the crawler driving wheels 11 and 11 and protrude from the left and right sides of the front transport transmission case 8.
3 are attached, and the crawler drive wheels 1 on the left and right sides are attached.
Crawlers 14 are wound around 1.11 and crawler rolling wheels 13 respectively. The grounding section support wheels 15 for rotatably supporting the grounding sections of the crawlers 14 from above are provided so as to be freely rotatable by the frames 5.7.

In the traveling device 1, the left and right crawlers 14, 14 are positioned in front and rear directions such that the longitudinal direction of the seedling boxes C is laterally transverse to the traveling direction of the traveling device 1. Are arranged at predetermined intervals from the left and right ends in the longitudinal direction of the seedling boxes C arranged in the direction. Thereby, at the time of the seedling box pick-up operation, it is possible to travel without contacting or stepping on the adjacent seedling boxes Cn adjacent to one of the right and left sides and arranged in the front-rear direction. Also, in the operation of arranging the seedling boxes, it is possible to travel without contacting or stepping on the adjacent seedling boxes Cn in the same manner as in the operation of picking up the seedling boxes.
· Since the crawler marks 14T of the concave grooves formed on the ground due to the contact pressure of 14 are located inside the left and right ends of the seedling boxes C arranged side by side, the seedling boxes C arranged side by side are crawler marks. The seedling boxes C can be arranged horizontally on the ground because they do not fall down to 14T.

The seedling box transfer device 2 transfers the seedling boxes C from the ground to the second seedling box transfer device 17 (or from the second seedling box transfer device 17 to the ground). The seedling boxes C are transferred from the first seedling box transfer device 16 to a position near the front side of the seedling box mounting portion 3 (or from a position near the front side of the seedling box mounting portion 3 to the first seedling box transfer device 16). It is provided with a second seedling box transfer device 17 to be used. At a transfer takeover position between the first seedling box transfer device 16 and the second seedling box transfer device 17, a soil removal device 18 for scraping off the soil attached to the bottom of the seedling boxes C to be transferred is provided. ing.

The first seedling box transfer device 16 is mounted on the left and right sides of a first transfer drive shaft 19 protruding on the left and right sides of the transfer transmission case 8 so that the first transfer drive pulleys 20 are integrally rotated. First transfer frames 21 are rotatably attached to both left and right ends of the drive shaft 19, and the front end sides of both frames 21 are connected to the first connection shaft 2.
The first transport driven pulleys 22 are attached to the first connecting shaft 21a so as to freely rotate. A first transport belt 23 with a lug is wound around the first transport drive pulleys 20 and the first transport driven pulleys 22 respectively. In addition, seedling box rakes 24 are removably attached to the front ends of the first transport frames 20 so that they are located in front of the first transport driven pulleys 22.

When the seedling box scooping tools 24, 24 are grounded on the ground or slightly penetrated beneath the ground, the upper end of the outer shape in a side view is low, the rear is high, and the lower is horizontal. The rear end is inclined upward. Thus, if the seedling box scooping tools 24, 24 are advanced slightly forward under the bottom of the seedling boxes C ... arranged on the ground, the seedling box C ... Is pulled off the ground along the upper edge. Then, the removed seedling boxes C are connected to the first seedling box transport device 16.
Is transported backward.

Further, the left and right widths of the seedling box rake tools 24 and the first seedling box transporting device 16 located on the rear side thereof are in a horizontal state in front of the body (the longitudinal direction of the seedling box C is in relation to the body moving direction). Are positioned inside the left and right end positions of the seedling boxes C arranged side by side in a front-to-rear direction in a direction intersecting left and right), so that the seedling box scooping tool 24. In the case of a configuration that acts to penetrate the bottom of the seedling box C.
The seedling box can be properly scooped even if the position of the seedling box is shifted left and right with respect to the left and right positions of the seedling box to be scooped.

Also, the left and right crawlers 14 of the traveling device 1
Since the right and left outer end positions of the seedling box scooping tool 24 and the first seedling box transport device 16 located on the rear side are provided on the left and right inner sides from the left and right outer end positions of the right and left crawlers 14, 14 If the seedling box scooping tools 24, 24 do not contact the adjacent seedling boxes Cn... Without contacting the adjacent seedling boxes C.
When the traveling direction of the traveling device 1 is corrected, the front of the machine body swings right and left, but since the seedling box rake tools 24 are narrowly provided on the left and right inner sides, it is difficult to contact the adjacent seedling boxes Cn. In addition, for the second seedling box transfer device 17 where the seedling box transfer is taken over behind the first seedling box transfer device 16, a seedling box transfer guide plate provided on the left and right from the middle of the first seedling box transfer device 16. The right and left positions of the seedling boxes that have been lifted and conveyed while being shifted left and right from 52 are properly corrected.

Since the seedling boxes C are picked up and transported by the seedling box scooping tools 24 and 24 and the seedling box transporting device 2 in a horizontal state, or are transported on the ground and arranged side by side. The stability of the seedling boxes C at the time of arranging or arranging the seedling boxes and transporting the seedling boxes is good.

The first seedling box transport device 16 operates so that the front side moves up and down about the first transport drive shaft 19 as the center of rotation. Specifically, first, a hydraulic cylinder 25 as an actuator is provided. The rear end of the cylinder portion of the hydraulic cylinder 25 is pivotally supported via a horizontal axis by a bracket fixed to the front frame 7, and the front end of the piston portion of the hydraulic cylinder 25 is rotatably supported on the front frame 7. An arm 27 integral with the shaft 26 is connected via a horizontal shaft. Further, a first interlocking arm 28 attached to the right end of the rotation shaft 26 so as to rotate integrally therewith.
And the arm tip of a second interlocking arm 29 rotatably attached to the first transport drive shaft 19, are connected by a rod 30 to form a link. And
A swing arm 29a provided integrally with the second interlocking arm 29 is rotatably connected to a second connection shaft 31 that connects the first transfer frames 21 and 21 in front of the first transfer drive pulleys 20 and 20. I have.

Thus, when the piston of the hydraulic cylinder 25 is retracted into the cylinder, the swing arm 30 is moved upward about the first transport drive shaft 19 by the interlocking of the link components. The first transport frame 21 is rotated integrally with the first transport frame 21 so that the leading end moves upward about the first transport drive shaft 19, and the seedling box rake tools 24 move upward. The first seedling box transport device 16 is rotated. Further, when the piston portion of the hydraulic cylinder 25 operates to protrude from the cylinder portion, the swing arm 30 is rotated so that the tip end of the swing arm 30 moves down about the first transport drive shaft 19 by the interlocking of the link components. And the first transport frame 21
21 rotates about the first transport drive shaft 19 as the center of rotation so that the tip moves downward, and the first seedling box transport device 16 rotates so that the seedling box rake tools 24 move downward.

The second seedling box transfer device 17 is provided with a second transfer drive roller 32 rotatably provided on the upper side of the intermediate transmission case 6 and a second transfer drive roller 32 rotatably provided on the transfer transmission case 8. A wide second transport belt 34 is wound around the transport driven roller 33.
The second transport drive roller 32 includes a roller support frame 36 in which both ends of a rotating shaft 32 a that rotates integrally with the roller 32 are fixed to both ends of pipe-shaped frames 35 fixed to the left and right of the intermediate transmission case 6.・ Supported by 37. Then, the second transport drive shaft 38 is protruded from the intermediate transmission case 6 into the left pipe-shaped frame 35, and a drive sprocket 39 is attached to an end of the shaft so as to rotate integrally therewith. A transmission chain 41 is hung on the driven sprocket 40 attached to the shaft end of the driving shaft 32a so as to rotate integrally with the driven sprocket 40 in the roller support frame 36, and the second conveyance driving roller 32 is provided so as to be driven and rotated. I have.

The earth removal device 18 rotates the earth removal belt 42 in a direction crossing the transport direction of the seedling box transportation device 2 so as to be switchable between forward and reverse, and the rotating lugs 42a of the earth removal belt 42 are transported. The seedling box C is provided so as to come into contact with the bottom surface and to drop the soil. The earth removal belt 42
It is wound around earth removal drive pulleys 43 and rollers 44 provided on both left and right sides of the transport transmission case 8. The drop drive pulleys 43 are integrally rotated with pulley shafts 47 projecting forward from transmission cases 46 fixed to both ends of the transmission frames 45 fixed to the left and right sides of the transport transmission case 8. So that it is attached. Pulley shafts 47
Transmission frame 4 from both left and right sides of transport transmission case 8
Bevel gears 49 and 49 are attached to the left and right ends of the left and right soil drop drive shafts 48 and 48 protruding into 5.45 so as to rotate integrally in the transmission cases 46 and 46, and the pulley shafts 47 and 47 are attached to the gears. The bevel gears 50, which are assembled so as to rotate integrally, are provided so as to be meshed and transmitted. The rollers 44, 44
Roller support members 51, 51 fixed to the lower side of 5.45
It is mounted so that it can roll freely.

The seedling box transfer guide plates 52 are provided so as to sandwich the transfer path from the first seedling box transfer device 16 to the second seedling box transfer device 17 via the soil removal device 18 from the left and right. The front and rear ends of the guide plate are bent obliquely right and left outward, and the conveyance of the seedling boxes C by the seedling box conveying device 2 is guided at predetermined left and right positions. The seedling box transport guide plates 52 are fixedly provided on the transmission frames 45, and the seedling box transport guide plates 52 on the left and right sides thereof are provided.
-52 is provided so that the left-right spacing is slightly wider than the longitudinal width of the seedling box C. Further, the second seedling box transfer device 17 is moved from the rear end position of the seedling box transfer guide plates 52.
Is provided so that the front-back distance to the vicinity of the rear end position has at least the width in the short direction of one seedling box.

Therefore, at the time of the seedling box pick-up operation, the worker at the side of the machine picks up the seedling box C transported to the rear end side of the second seedling box transporting device 17 by hand and places it on the seedling mounting portion 3. In the picking-up operation of the seedling box C, since the seedling box transport guide plates 52 are not extended to the rear end side of the second seedling box transporting device 17, the worker moves the seedling box C horizontally and horizontally. The seedling boxes C... Can be transferred from the second seedling box transport device 17 to the seedling placement section 3 quickly and with a reasonable operation. During the operation of arranging the seedling boxes, the worker on the side of the machine takes out the seedling boxes C on the seedling placing part 3 one by one,
7, but also in the operation of placing the seedling box C on the second seedling box transfer device 17, the seedling box transfer guide plate 5
2 and 52 do not extend to the rear end side of the second seedling box transport device 17, so that the operator can place the seedling box C so as to be inserted from the left and right sides and from the top of the seedling placing portion 3. The transfer of the seedling boxes C to the second seedling box transfer device 17 can be performed quickly and with a reasonable operation.

Further, since the seedling box transport guide plates 52 are provided in the middle of the first transporting device 16, the front end portions of the guide plates are placed adjacent to one of the right and left sides. Because there is no big contact with the seedling of ...
Damage to the seedlings in the adjacent seedling boxes Cn... By the seedling box transport guide plates 52 can be avoided.

The seedling drive pulleys 43 are provided with seedling box transport guide plates so that the soil dropping action can be uniformly received over the entire bottom surface of the seedling box C to which the soil removal belt 42 of the soil removal device 18 is conveyed. 52, 52 are provided at the left and right outer sides. Therefore, the seedling box transport guide plates 52
Notches 52a are provided so as to straddle the earth removal belt 42 and the earth removal drive pulleys 43.

The front end of the transport transmission case 8 is
The first seedling box transfer device 16 has the first transfer drive shaft 19 projecting from the front end of the case 8 in the left-right direction. The drive unit of one transport drive shaft 19 is used for dropping the belt 4
Since it is not necessary to dispose the fuselage 2 outside, the body width can be reduced and a compact configuration can be realized.

The first transport drive pulleys 20
Is provided so as to approach a state where the rear end thereof enters the drop belt 42, and furthermore, is provided at a position close to the drop belt 42 by making the second transport driven roller 33 small in diameter. While providing the soil removal device 18 between the first seedling box transfer device 16 and the second seedling box transfer device 17,
The transfer handover interval between the first seedling box transfer device 16 and the second seedling box transfer device 17 can be configured to be narrow.

Also, in the soil removal device 18, the soil removal drive pulleys 43, 43 provided on the left and right outer sides of the seedling box transport guide plates 52, 52 are constituted by small-diameter pulleys, and the rollers 44, 44 are formed by the pulleys 43, 43. It is provided on the left and right inner sides of the seedling box transport guide plates 52, 52 below the 43, and is constructed by winding the soil drop belt 42 around the pulleys 43, 43 and the rollers 44, 44. As a result, a space for projecting the front end of the transport transmission case 8 forward from the inside of the soil drop belt 42 as described above can be secured inside the soil drop belt 42, and can be secured during the seedling box pick-up operation or the seedling box arrangement. It is possible to avoid the interference of the earth drop belt 42 with the seedling box rows CCn adjacent to one of the left and right sides of the working seedling box rows CC. (If a large-diameter dropping drive pulley is used to secure a space for projecting the front end of the transport transmission case 8 from the inside of the dropping belt 42 to the front side, the dropping belt is used for the adjacent seedling box row CCn. 42 may interfere.)

Further, the rotation direction of the earth removal belt 42 is opposite to the side of the seedling box row CCn adjacent to one of the left and right sides of the seedling box row CC during the seedling box picking operation or the seedling box arranging operation. It is provided so as to be able to switch between forward and reverse rotation so that it can be rotated. As a result, the soil scraped off by the soil removal belt 42 jumps in the belt rotation direction.
The soil scraped by the soil drop belt 42 is switched so as to jump to the side without the seedling box opposite to the side, and the soil scraped by the soil drop belt 42 is placed on the adjacent seedling box row CCn. Can be prevented from falling.

Further, in order to switch the rotation direction of the earth drop belt 42 as described above, the operator judges and performs the switching operation using the earth drop belt rotation switching lever L4. The earth removal belt rotation switching lever L4 is provided to have a lever position for rotating the earth removal belt 42 to the right, a lever position for rotating the earth removal belt 42 to the left, and a lever position for stopping the rotation of the earth removal belt 42. In addition to such a lever position, the rotation direction of the soil drop belt 42 is automatically determined based on the detection result of the adjacent seedling box detection means S1 for detecting which side of the adjacent seedling box row CCn. Providing the lever position for switching as described above further improves operability.

The soil removal device 18 may be configured to rotate the roll-shaped soil removal brush in the direction opposite to the transport direction of the seedling box transport device 2 instead of the above configuration. it can.

When the seedling box C is conveyed to the rear end of the second seedling box conveying device 17 during the picking operation, and the seedling box C is conveyed further rearward, the second seedling box conveying operation is performed. In the vicinity of the rear side of the device 17, the stop operation arms 53 that can rotate in the front-rear direction are pushed by the seedling box C and rotate rearward, and in conjunction therewith, the main clutch 54 is operated to the transmission off state. Then, the operation of the traveling device 1, the first transport device 16, the second seedling box transport device 17, and the operation of the soil removal device 18 are stopped. The stop operation arms 53 are integrally fixed to a horizontal shaft 55 rotatably provided on the rear side of the intermediate transmission case 6, and an interlocking arm 56 further integrally fixed to the horizontal shaft 55. A main clutch shifter 57 for operating the main clutch 54 projecting to the right side of the traveling section transmission case 4 is connected by a rod 58 and is connected to the main clutch 54 in an interlockable manner. Thus, there is no problem even if the worker is late to pick up the seedling box C transported to the rear end side of the second seedling box transporting device 17. That is, if the transported seedling boxes C are moved forward without being picked up one after another, the seedling boxes C successively picked up from the ground and transported are full on the seedling box transporting device 2. And the seedling boxes C on the ground cannot be picked up even if the aircraft is further advanced. Nevertheless, if the aircraft is further advanced, the seedling boxes C on the ground are turned over or broken. However, even if the seedling box... C is not picked up before reaching the predetermined position of the second seedling box transport device 17 as described above, at least the traveling device 1 stops, and the above-described trouble occurs beforehand. Is prevented. Therefore, the worker can calm down without worrying about the occurrence of the above-described trouble and can move
The seedling box C conveyed above can be picked up, and the operation can be continued smoothly.

The seedling box... C is not picked up before reaching the predetermined position of the second seedling box transporting device 17, and the stop operation arms 53 are pushed and moved by the seedling box C to stop the traveling device 1. Even if this is the case, simply picking up the seedling box C from that state causes the aircraft to start running again. When the seedling box C, which has pushed and moved the operation arm 53 backward, is removed, the operation arm 53 can return to the forward rotation state,
As a result, the main clutch 54 is returned to the engaged state by the spring 59 biasing the main clutch 54 to the engaged state, and the operation arms 53 are rotated forward and returned.

Therefore, in the seedling box picking-up machine and the seedling box arranging machine, the tip of the seedling box scooping tools 24 of the first seedling box transfer device 16 is slightly lowered below the ground in the seedling box picking operation state. The first conveyor belt 24
The traveling device 1 is moved forward with the 24 and the second conveyor belt 34 rotated so that the upper sides thereof move rearward. Then, the tips of the seedling box rake tools 24, 24 enter the lower bottom of the seedling box C ... placed on the ground, and the seedling box C
Are scooped by the seedling box scooping tools 24 so that they can be peeled off from the ground. The picked-up seedling boxes C are transported backward by the first transport belts 24 and transported from the ground to the second seedling box transport device 17. Where the seedling boxes C are taken over from the first seedling box transporting device 16 to the second seedling box transporting device 17, the soil attached to the bottom surface of the seedling boxes C ... is scraped off by the soil removal device 18. The seedling boxes C taken over by the second seedling box conveying device 17 are further moved rearward to the second seedling box conveying device 1.
7 is transported to the rear end side, i.e., the vicinity of the front side of the seedling box mounting portion 3, an operator who moves along with the body on the side of the body picks up the seedling box C by hand. Then, the picked seedling box C is placed in the seedling box housing frame H placed on the seedling box placing portion 3.
Put in.

If the worker takes up the transported seedling box C at a later time, the seedling box C transported rearward pushes the stop operation arms 53 and 53 backward to move it. The main clutch 54 is disengaged, and the operation of the traveling device 1, the first transport device 16, the second seedling box transport device 17, and the operation of the soil removal device 18 are stopped. From this state, if the seedling box C that has pushed and moved the stop operation arms 53 and 53 backward is picked up, the stop operation arms 53 and 53 can return to the front position and can rotate, and the main clutch 54 returns to the engaged state, Again, the traveling device 1, the first transport device 16, the second seedling box transport device 17, and the soil removal device 18 start to operate, and the seedling picking-up work travel state is established.

As described above, the seedling box picking-up machine and the seedling box arranging machine, while picking up the seedling boxes C arranged in the traveling direction in the seedling box picking operation, successively pick up the seedling boxes C. Is transported to a position near the front side of the seedling box mounting portion 3. Then, the transported seedling boxes C are successively picked up by the operator and placed on the seedling box mounting portion 3 (they are put into the seedling box housing frame H).

On the other hand, this seedling box picking machine and seedling box arranging machine
In the seedling box arranging operation state, a large number of seedling boxes C are stacked on the seedling box mounting portion 3 (the seedling box housing frame H, which houses a large number of seeded boxes C. 3 on)
The seedling box scooping tools 24 of the first seedling box transfer device 16 are positioned in a state of being in contact with the ground or slightly floating (in addition,
In this operation, the seedling box scooping tools 24 may be removed), and the first transport belts 24 and 24 and the second transport belt 34 are rotated so that their upper sides move forward. Then, the traveling device 1 is moved backward. In this state, the seedling boxes C on the seedling box mounting portion 3 are sequentially replaced one by one on the rear end side of the second seedling box transport device 17 by the operator. Then, the loaded seedling boxes C are transported forward, and the second seedling box conveying device 17 moves to the first seedling box conveying device 16.
The soil attached to the bottom of the seedling box C is scraped off by the soil removal device 18 where the seedling box C is taken over, and
The first seedling box conveying device 16 is conveyed toward the front end side, and is sequentially placed one by one on the ground and lined up.

As described above, in the seedling box picking-up and seedling box arranging machine, in the seedling box arranging operation, the operator sequentially moves the seedling boxes C on the seedling box placing portion 3 one by one to the second seedling box. Transfer device 17
The seedling boxes C are placed on top of each other, and the seedling boxes C are placed on the ground from the traveling vehicle body 1, and the seedling boxes C are successively arranged one after another in the advancing direction of the fuselage. It is arranged in.

The transport speed of the first seedling box transport device 16 is set to be slightly higher than the traveling speed of the traveling device 1. Thereby, the transfer of the seedling boxes C by the first seedling box transfer device 16 does not become a resistance to the forward running of the traveling vehicle body 1 during the seedling box pick-up operation. Also, in the seedling box arranging operation, the seedling box C carried out to the ground from the tip of the first seedling box transport device 16 is pressed against the seedling box C carried out before and placed on the ground. Are placed on the ground with little gap in a state where they are in contact with each other.

The transfer speed of the second seedling box transfer device 17 is set to be faster than the transfer speed of the first seedling box transfer device 16. Therefore, when picking the seedling box,
When the seedling boxes C are transferred to the rear end of the second seedling box transfer device 17, the worker can take up the seedling boxes C and transfer the seedling boxes C onto the seedling box mounting portion 3 with a margin, and the seedling box picking operation can be continuously performed. It can be performed and workability is improved. In addition, during the operation of arranging the seedling boxes, the worker can easily transfer the seedling boxes C from the seedling box mounting portion 3 to the second seedling box transport device 17, and the seedling box arranging operation can be continuously performed. The workability can be improved.

The transmission mechanism of the seedling box picking-up machine and the seedling box arranging machine will be described below. An engine output pulley 60 is provided on the output shaft of the engine E so as to rotate integrally therewith, and a transmission input pulley 60 and a transmission input shaft S1 protruding from the left side of the traveling transmission case 4 are mounted so as to rotate integrally. A transmission belt 62 is wound around the pulley 61. A hydraulic pump transmission belt 65 is wound around the pulley 60 and a pump drive pulley 64 provided so as to rotate integrally with the pump drive shaft of the hydraulic pump 63. A main clutch 54 is provided in the transmission case 4 on the transmission input shaft S <b> 1 driven and rotated by the engine E. The on / off operation of the main clutch 54 is performed by the stop operation arms 53, 53 interlockingly connected to the main clutch shifter 57, and the main clutch lever L1 provided on the lever box LB (R) provided near the grip portion of the handle 9. And is operated by. The stop operation arm 5
The disconnection operation of the main clutch 54 by the main clutch lever L1 takes precedence over the disconnection operation of the main clutch 54 by the main clutch lever L1 when the stop operation arms 53 are in the main clutch engagement operation state. It is provided so that an on / off operation can be performed. The spring 59 is a spring that urges the main clutch 54 into an engaged state.

Next, the power is transmitted from the gear G1 which rotates integrally with the main clutch 54 in the engaged state to the transmission gear G2 which is assembled so as to rotate integrally with the transmission shaft S2. A forward / reverse switching gear G3 is assembled on the transmission shaft S2 so as to rotate integrally and slide freely in the axial direction. When operated, the forward gear G4 integral with the traveling shaft S3 and the reverse counter gear G6 engaged with the reverse gear G5 integral with the traveling shaft S3 are selectively engaged. The left and right ends of the traveling shaft S3 are rotatably engaged with left and right crawler driving shafts S5 and S5 on the same axis.
From the right and left crawler drive shafts S5 and S5, and are transmitted to be operable. The outer ends of the left and right crawler drive shafts S5 protrude from the left and right sides of the traveling transmission case 4, and the crawler drive wheels 11 are attached to the protrusions so as to rotate integrally. Side clutch 67
The transmission on / off operation of 67 is performed by the side clutch lever L3 which is interlocked with the side clutch shifters 68/68.
(R) · L3 (L). The side clutch levers L3 (R) and L3 (L) are provided on the left and right grips of the handle 9.

The power in the traveling transmission case 4 is transmitted to the seedling box transport device 2 and the soil removal device 18. That is, the seedling box transfer clutch 69 is assembled to the traveling shaft S3, and the clutch 69 is rotated integrally with the sprocket G7 in the transmission-on state. The power is transmitted to a sprocket G8 integrated with the transport drive shaft 38. Then, from the drive sprocket 39 integrated with the shaft end of the second transfer drive shaft 38, to the driven sprocket 40 integrated with the shaft end of the roller rotation shaft 32a of the second transfer drive roller 32 via the transmission chain 41. It is transmitting.

Further, a transmission sprocket G9 is provided on the second transport drive shaft 38, and the transmission transmission case 8 is transmitted from the sprocket G9 via the transmission chain C2.
To the sprocket G10 integral with the earth drop shaft S6. Then, on both left and right ends of the earth removal shaft S6, earth removal belt rotation switching clutches 70, 70 are provided, and when the clutch is engaged, it is transmitted to the left and right earth removal drive shafts 48, 48.
Bevel gears 4 on both left and right ends of the left and right soil drop drive shafts 48
9.49 are integrally assembled, and the pulley shaft 47.4
7, the bevel gears 50, 50 integrally engaged with each other from the left and right outer front sides, and the earth removal drive pulley 43
43 is driven and rotated. The earth removal belt rotation switching clutches 70, 70 are switched such that one of the left and right sides is engaged, or both the left and right sides are in the off state, and the rotation of the earth removal belt 42 of the earth removal device 18 is rotated rightward or rightward. To the left,
Further, the state is switched to the rotation stop state. This switching operation is performed by a dropping belt rotation switching lever L4 interlockingly connected to the dropping belt rotation switching clutch shifters 71, 71. When the lever L4 is rotated left and right, a shifter operation bar 73 connected to the lever by a link member 72 such as a rod interlocks in the left and right direction, and the left and right ends of the operation bar 73 are connected to the long hole connection portions 73a. The left and right clutch shifters 71 and 71 are connected in the same direction, and the left and right clutch shifters 71 and 71 are engaged in the same direction as described above, so that the left and right sides are engaged or both the left and right sides are disengaged as described above. Is switched.

In order to automatically switch the rotation direction of the dropping belt 42, the adjacent seedling box detecting means S1 (for example, the right and left outer sides of the seedling box scooping tools 24, adjacent seedling box rows CCn).
Is provided in the seedling box row CCn so that the left or right sensor rod S1a is turned inward and the adjacent seedling box detection switch S1b on that side is turned ON. )
Is provided, each of the left and right earth drop belt rotation switching clutch shifters 71 has a solenoid S
1c and S1c are independently connected, and based on the detection result of the adjacent seedling box detection means S1 (ON signal of the left and right adjacent seedling box detection switch S1b), the left and right one side solenoids S1c are excited and The solenoid pin retracts,
The clutch shifter 71 connected thereto is interlocked so that the left and right one of the earth drop belt rotation switching clutches 70 are switched to the engaged state. At this time, the switching lever L4 has been operated to the automatic switching lever position, and the shifter operation bar 73 is in the left-right neutral state.
The clutch shifters 71 are operated in the long holes of the long hole connecting portions 73a at both left and right end portions of the clutch shifter 71. When the solenoids S1c and S1c are in the non-excited state (the adjacent seedling box detection switches S1b and S1b are OFF), the solenoid pins protrude by springs in the solenoids, and the clutch shifters 71 are operated to disengage the clutch.

A transmission sprocket G11 is provided on the earth dropping shaft S6. From the sprocket G11, the transmission mission case 8 is transmitted via a transmission chain C3.
Sprocket G integrated with first transport drive shaft 19 on the inner front end side
The first transport drive pulleys 20 provided so as to be transmitted to the shaft 12 and rotate integrally with the shaft 19 thereof are driven to rotate.
Incidentally, the seedling box transfer clutch 69 is engaged and disengaged by a seedling box transfer soil dropping clutch lever L5 which is operatively connected to the seedling box transfer clutch shifter 74.

The hydraulic mechanism of the seedling box picking-up machine and the seedling box arranging machine will be described below. The pressure oil sent by the hydraulic pump 63 driven by the engine E is supplied to the hydraulic cylinder 2 that moves the front part of the first seedling box transfer device 16 up and down through the first switching valve 75.
5, and further sent to a second hydraulic cylinder 78 that moves the seedling box mounting table 77 of the seedling box mounting part 3 up and down with respect to the traveling device 1 via a second switching valve 76, and the oil tank T It is provided to return to. The hydraulic cylinder 25 and the second hydraulic cylinder 78 are both double-acting. The first switching valve 75 and the second switching valve 76 are respectively connected to the hydraulic cylinder 2
5 and the piston of the second hydraulic cylinder 78 are provided so that the operation can be switched between the projecting direction and the retracting direction.
The first switching valve 75 is provided so as to be switchable by a first seedling box transport device up / down operation lever L6, and the second switching valve 76 is provided so as to be switchable by a seedling box mounting table elevating operation lever L7. I have. In addition, the first switching valve 75 is operatively connected to a grounding sensor S2 for controlling the position of the seedling box scooping tool 24 at the tip of the first seedling box transport device 16 so as to be positioned at a predetermined position with respect to the ground. May be provided. At this time, the operation lever L6 has been operated to the automatic up-down lever position, and the long hole connection portion 7 of the connection member 79 connecting the lever L6 and the switching operation member of the first switching valve 75.
In the slot 9a, the switching operation member of the first switching valve 75 is operated based on the detection result of the ground sensor S2. In the figure, reference numeral 80 denotes a relief valve.

As described above, the seedling box mounting table 77 of the seedling box mounting portion 3 is configured to move up and down with respect to the traveling device 1 by the operation of the second hydraulic cylinder 78.
Specifically, the seedling box mounting base frame 81 and the seedling box mounting base 77 fixed on the traveling transmission case 4 and the rear frame 5 are provided.
The lifting link 82 is provided in the form of a pantograph mechanism, and a second hydraulic cylinder 78 is attached so as to move the lifting link 82 up and down. Therefore, at the time of the seedling box pick-up operation, when the seedling boxes C picked up from the ground are full in the seedling box storage frame H placed on the seedling box mounting table 77, the tip of the first seedling box transport device 16 Is moved up, and approached to the left or right side or the rear side of the carrier CTa of the seedling box transporter (truck) CT waiting on the outside of the seedling raising house, and the machine is stopped sideways.
Then, the seedling box mounting table elevating operation lever L7 is operated to raise the seedling box mounting table 77, and when the seedling box mounting table 77 is substantially at the same height as the loading platform CTa, the lifting and lowering is stopped. In that state,
The seedling box housing frame H on the seedling box mounting table 77 is extruded in the left and right direction, and is loaded on the loading platform CTa.

As described above, when the seedling box is picked up and the picked-up seedling box becomes full, it is moved as it is.
The aircraft is placed sideways on the carrier CTa of the transport vehicle CT, and the carrier CTa
By simply moving the seedling box housing frame H to the height and moving it laterally, the seedling box housing frame H can be easily loaded on the transport vehicle CT, so that work efficiency is high.
When the worker with a standard height is in a steering state with the handle 9 placed on the seedling box mounting frame 77 on the seedling box mounting table 77, the position of the eye of the worker is placed. Seedling box storage frame H
The height of the seedling box housing frame H is set so as to be positioned above the frame.

Therefore, this seedling box picking-up machine and seedling box arranging machine is provided with the seedling box transfer device 2 for transferring the seedling boxes C...
Since the seedling boxes C arranged on the ground are conveyed onto the machine by the seedling box conveying device 2 and picked up, labor for picking up the seedling boxes can be saved. In addition, since the seedling box transfer device 2 is configured to transfer the seedling boxes C... In the direction opposite to the body running direction while the body is running, the seedling boxes C. The seedling box is picked up on the body by the seedling box transport device 2, and the seedling box picking operation can be efficiently performed with a simple mechanism. Also, since the seedling box transfer device 2 is configured to transfer the seedling boxes C... In the direction opposite to the body running direction while the body is running, and to transfer a plurality of the seedling boxes C in a state of being arranged in the transfer direction,
A plurality of seedling boxes C can be continuously picked up from the ground while the vehicle is running, and the seedling box picking operation can be efficiently performed with a simple mechanism. Furthermore, since the seedling box transport device 2 is configured to transport the rectangular seedling boxes C in a plan view in a horizontal state in which the longitudinal direction is the left-right direction with respect to the machine running direction, the seedling boxes C ... Compared to the case of transporting in a vertical position, the traveling distance of the aircraft while picking up one seedling box from the ground to the aircraft is shorter, and therefore, the seedling box picking operation can be efficiently performed with a simple mechanism. . Further, since the seedling box transport device 2 is configured to transport the seedling boxes C... In the direction opposite to the body traveling direction and transport at a speed equal to or higher than the vehicle traveling speed while the vehicle is traveling, the seedling boxes C. Is transported so as not to cause a resistance of the running of the airframe, and is picked up on the airframe. Therefore, the picking operation of the seedling box can be efficiently performed by a simple mechanism.

Further, since the seedling box mounting portion 3 for mounting a plurality of seedling boxes C on the body is provided, a large number of seedling boxes C can be placed on the body and moved. Seedling box mounting part 3
Are supplied from the ground continuously while the machine is running, so that the seedling box picking operation can be performed more efficiently. Further, since the seedling box mounting part 3 is provided so as to be able to move up and down, the seedling boxes C ... picked up from the ground and placed on the seedling box mounting part 3 are raised. Thus, the seedling box can be easily transferred from the ground to a truck bed or the like located at a high position, and can be efficiently transported after picking up the seedling box.

Then, the seedling box transport device 2 is moved to the seedling box C ...
The seedling box transfer direction is provided to be reversible so that the seedling box C can be transferred from the body to the ground. The box arrangement work can be performed, and in addition to the effect of the invention described in claim 1, labor saving of the seedling box picking up work can be performed.

[Brief description of the drawings]

FIG. 1 is a side view of a seedling box picking machine and a seedling box arranging machine.

FIG. 2 is a plan view of a seedling box picking machine and a seedling box arranging machine.

FIG. 3 is a sectional side view of a front side of a seedling box picking-up machine and a seedling box arranging machine.

FIG. 4 is a plan view of the front side of a seedling box picking-up machine and a seedling box arranging machine.

FIG. 5 is a front view of the front side of a seedling box picking-up machine and a seedling box arranging machine.

FIG. 6 is a transmission mechanism diagram of a seedling box picking-up machine and a seedling box arranging machine.

FIG. 7 is a hydraulic circuit diagram of a seedling box picking machine and a seedling box arranging machine.

FIG. 8 is a side view showing the positional relationship between the seedling boxes subjected to the seedling box arranging operation and the crawler traces of the seedling box picking-up machine and the seedling box arranging machine.

9A is a side view and FIG. 9B is a plan view showing a seedling box picking-up operation state of the seedling box picking-up machine and the seedling box arranging machine.

10A and 10B are a side view and a plan view showing a seedling box arranging operation state of the seedling box picking-up machine and the seedling box arranging machine.

11 (a) is a side view, and FIG. 11 (b) is a plan view showing a state where a seedling box housing frame filled with a seedling box picking up machine and a seedling box arranging machine is loaded onto a carrier during seedling box picking work. .

[Explanation of symbols]

1: Traveling device 2: Seedling box transport device 3: Seedling box mounting portion 24: Seedling box scooping tool C: Seedling box

Claims (4)

(57) [Claims] 1. A seedling box transport device 2 for transporting a seedling box C from the ground to the airframe provided with a traveling device 1 and a seedling box transporting device .
A seedling box on which a plurality of seedling boxes C conveyed by the device 2 are placed.
In the seedling box pick-up machine provided with the mounting portion 3, the seedling box transfer
At the front end of the device 2, the upper tip is lower and the rear is higher.
At least two left and right seedling box rakes 24
Along with the provision, the seedling box transport device 2 moves the seedling box C while the machine is running.
In the direction opposite to the machine running direction and
A seedling box pick-up machine characterized in that a plurality of seedling box pick-up machines are configured to be conveyed in a state of being arranged side by side . 2. A seedling box transport device 2 is provided with a rectangular seedling box C
3. The seedling box pick-up machine according to claim 1, wherein ... are transported in a horizontal state in which a longitudinal direction thereof is a left-right direction with respect to the machine running direction. 3. The seedling box transport device 2 is moved to the seedling boxes C ...
The seedling box picking machine according to claim 1 or 2, wherein the seedling box picking-up machine is configured to be conveyed at a speed equal to or higher than the body running speed. 4. The method according to claim 1, wherein the seedling box mounting portion is provided so as to be able to move up and down.
A seedling box picking machine according to claim 3.