JPH0446527B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a seedling transplanter equipped with a seedling feeding stop device.

(Prior art) In the conventionally known Japanese Utility Model Publication No. 54-108313, on the plate surface of a square seedling tank surrounded by a horizontal upper edge, a horizontal lower edge, a vertical right edge, and a vertical left edge, Vertical ridges are formed at predetermined intervals between the vertical ridges, and a partitioned seedling tank is formed between the longitudinal ridges, and a planting rod fixed to the fixed frame is placed at the lower position of the horizontal lower edge of the seedling tank. A fixed receiving frame for plate-shaped seedlings is provided with a notch formed therein, and the seedling tank is configured to move from side to side on the fixed receiving frame, and a vertically long window is provided at each lower position of the plate surface of the divided seedling tank. A seedling feeding roller is provided on the lower surface side of the window hole with a part thereof protruding onto the plate surface of the seedling tank, and a seedling feeding roller is provided on the surface side of the lower part of the seedling tank for each divisional seedling tank. The base of a movable stopper is fixed to an axis, and a stop body is provided at the rotating end of the stopper to stop the downward movement of the plate-shaped seedlings on the plate surface of the seedling tank at a position above the seedling feeding roller; Regarding a seedling transplanter with a seedling feeding stop device, the stop body is provided with a stop member that stops with a gap between the stop body and the plate surface of the seedling tank so that the tip thereof does not come into contact with the plate surface of the seedling tank even in the stop position. Are listed.

Also, in the conventionally known Utility Model Application Publication No. 57-11919,
In substantially the same configuration as the above-mentioned known example, an extremely long window hole is formed in the vertical direction covering almost the entire length, leaving only the upper part on the plate surface of the partitioned seedling tank, and upper parts are formed at both upper and lower end positions on the back side of the window hole. A structure is described in which a guide roll and a lower guide roll are respectively mounted on shafts, and a seedling conveying belt for plate-shaped seedlings is routed around the upper guide roll and the lower guide roll, but a seedling stopper is not provided.

Also, in the conventionally known Japanese Patent Application Laid-open No. 57-65119,
It describes a structure in which an intermediate roll is mounted between the upper guide roll and the lower guide roll in substantially the same configuration as the above-mentioned Japanese Utility Model Publication No. 57-11919.

(Problem to be solved by the invention) For example, a 6-row rice transplanter can plant rice in 6 rows at the same time, but due to the area of the field, only 2 or 3 rows may remain at the end. When the rice is planted, it is stopped using a stop device and used as a three-row type rice transplanter, for example. The stop operation involves grabbing the plate-shaped seedlings that have reached the fixed receiving frame and pulling them up to the top of the seedling tank, setting the stop mechanism to the stop position, and lowering the plate-shaped seedlings to stop them. The reason why the plate-like seedlings are pulled up to the top when stopped is, of course, to cause the planting claws to swing in vain. In addition, the fixed receiving frame of the seedling tank is sloped low, and the plate-shaped seedlings slide down the slope and reach the fixed receiving frame, but since the plate-shaped seedlings that have reached the fixed receiving frame are planted, the situation is incomplete. Because of this, the seedlings are fed with a belt rather than a roller to ensure that the plate-shaped seedlings reach the fixed receiving frame.

Therefore, when attaching a stop mechanism to a rice transplanter that uses a seedling feed belt, it is necessary to grasp the plate-shaped seedlings that have reached the fixed receiving frame and pull them up by rubbing the seedling feed belt when pulling them up to the top of the seedling tank. Therefore, when using a rice transplanter with a seedling feeding belt stop mechanism, special measures are required.

With the above-mentioned known technology of rice transplanters in mind, if we look at the conventionally known Japanese Utility Model Application Publication No. 108313/1989, a stop mechanism is provided, but the seedling feeding device provided at the bottom of the seedling tank is a seedling feeding roller. . With this, a sufficient seedling feeding effect cannot be expected, and the aforementioned problems with the seedling feeding belt and stop mechanism have not been solved at all.

Also, in the conventionally known Utility Model Application Publication No. 11919/1987,
Although a structure in which the above-mentioned known seedling feeding belt is provided is described, since a stop mechanism is not provided, the above-mentioned problems with the seedling feeding belt and the stop mechanism are not solved at all. The same applies to the case of the conventionally known Japanese Unexamined Patent Publication No. 57-65119.

Therefore, when using a seedling feeding belt, its position and vertical length should not be long as in the above-mentioned Japanese Utility Model Publication No. 57-11919, but should be limited to a position below the upper and lower midpoints of the plate surface of the seedling tank. If the stop position is set midway between the upper and lower sides of the seedling transport belt, various problems can be solved at once.

That is, although the seedling feeding belt has a fairly short structure, since the plate-shaped seedlings have the effect of lowering their own weight, it is possible to ensure that the plate-shaped seedlings reach the fixed receiving frame. If the plate-shaped seedlings are stopped at a higher level than the seedling feeding belt, they will be damaged because they will rub against the seedling feeding belt when pulled up, but since the plate-like seedlings will be stopped at an intermediate position between the top and bottom of the short seedling feeding belt, the fixed receiving frame The distance to pull up the plate-shaped seedlings that have reached this point is short, which not only makes it easier to pull up the plate-shaped seedlings, but also reduces damage by half. In addition, when the seedling feeding belt is stopped at a lower part, the plate-shaped seedlings that are stopped are damaged by the feeding action of the seedling feeding belt, but since the seedling feeding belt is stopped at a position halfway between the top and bottom of the short seedling feeding belt, the seedling feeding belt Even if it is subjected to the feeding action, the damage is only half, and there is almost no effect.

(Means for Solving the Problems) Therefore, the present invention provides a horizontal upper edge 50 and a horizontal lower edge 51.
Vertical ridges 54 are formed at predetermined intervals in the left-right direction on the plate surface of the square seedling tank 5 surrounded by the vertical right edge 52 and the vertical left edge 53, and between the vertical ridges 54. A partitioned seedling tank 55 is formed, and the seedling tank 8
A fixed receiving frame 56 for plate-shaped seedlings 49 is provided at a lower position of the horizontal lower edge 51 of the seedling tank 8, which is fixed to the fixed frame side and has a notch 57 through which the planting rod 9 passes from above.
is configured to move left and right on the fixed receiving frame 56, and window holes 12 having short vertical lengths are provided at positions lower than the upper and lower intermediate parts of the plate surface of the partitioned seedling tank 55, respectively.
An upper guide roll 13 and a lower guide roll 14 are respectively mounted on the upper and lower ends of the back side of the window hole 12, and the seedlings of the plate-shaped seedlings 49 are mounted on the upper guide roll 13 and the lower guide roll 14. The feed belt 17 is passed around, and a base 59 of a rotatable stopper 41 is fixed to the surface side of the lower part of the seedling tank 8 for each of the divided seedling tanks 55. A stop plate 43 for stopping the downward movement of the plate-shaped seedlings 49 on the plate surface of the seedling tank 8 is provided at an intermediate position between the upper and lower sides of the seedling transport belt 17, and the stop plate 43 is set against the plate surface of the seedling tank 8. The stop plate 43 has intersecting surfaces and is oriented so as to stop the downward movement of the plate-shaped seedlings 49, and the stop plate 43 is connected to the seedling conveying belt 17 so that its tip 47 does not come into contact with the seedling conveying belt 17 even in the stop position. A seedling planting machine with a seedling feeding stop device provided with a stop member that stops with a gap 60 between, and a seedling plant surrounded by a horizontal upper edge 50, a horizontal lower edge 51, a vertical right edge 52, and a vertical left edge 53. Vertical ridges 54 are formed on the plate surface of the square-shaped seedling tank 8 at predetermined intervals in the left-right direction, and a partitioned seedling tank 55 is formed between the vertical ridges 54. A fixed receiving frame 56 for plate-shaped seedlings 49 is provided at a lower position of the edge 51 and is fixed to the fixed frame side and has a notch 57 through which the planting rod 9 passes from above.
6, and a window hole 12 having a short vertical length is formed at a position lower than the upper and lower middle portions of the plate surface of the partitioned seedling tank 55, and the window hole 1
There are upper guide rolls 1 at both upper and lower end positions on the back side of 2.
3 and a lower guide roll 14 are respectively mounted on shafts, and a seedling transport belt 17 for the plate-shaped seedlings 49 is wound around the upper guide roll 13 and lower guide roll 14. A vertically long seedling floating prevention rod 46 is installed on the side of the seedling tank 8 to prevent the seedlings 49 from floating, and the sectioned seedling tank 5 is provided on the surface side of the lower part of the seedling tank 8.
A base 59 of a stopper 41 which can be rotated every 5 is fixed to a shaft, and the plate-shaped seedlings 49 on the plate surface of the seedling tank 8 are attached to the rotary end of the stopper 41 at an intermediate position between the upper and lower sides of the seedling conveying belt 17. A stop plate 43 is provided to stop the downward movement of the seedling tank 8.
The stop plate 43 has a surface that intersects with the plate surface and is installed in a direction that can stop the downward movement of the plate-shaped seedlings 49, and the stop plate 43 has an opening on the tip 47 side and has a predetermined depth to prevent the seedlings from floating. A cut groove 45 is formed to fit into the prevention rod 46, and when the stop plate 43 is rotated to the stop position, the back of the cut groove 45 abuts the seedling lifting prevention rod 46, and the tip 47 is surrounded by a seedling planting machine with a seedling feeding stop device configured to stop at a position that does not contact the seedling feeding belt 17, and a horizontal upper edge 50, a horizontal lower edge 51, a vertical right edge 52, and a vertical left edge 53. Vertical ridges 54 are formed at predetermined intervals in the left-right direction on the plate surface of the square seedling tank 8 , and a partitioned seedling tank 55 is formed between the longitudinal ridges 54 . A fixed receiving frame 56 for plate-shaped seedlings 49 is provided at a lower position of the horizontal lower edge 51 and is fixed to the fixed frame side and has a notch 57 through which the planting rod 9 passes from above.
6, and a window hole 12 having a short vertical length is formed at a position lower than the upper and lower middle portions of the plate surface of the partitioned seedling tank 55, and the window hole 1
There are upper guide rolls 1 at both upper and lower end positions on the back side of 2.
3 and a lower guide roll 14 are respectively mounted on shafts, and the seedling feeding belt 17 for the plate-shaped seedlings 49 is wound around the upper guide roll 13 and the lower guide roll 14. Seedling tank 55
A base 59 of a stopper 41 that can be freely rotated is fixed to a shaft, and the rotary end of the stopper 41 holds the plate-shaped seedlings 49 on the plate surface of the seedling tank 8 at an intermediate position between the upper and lower sides of the seedling conveying belt 17. A stop plate 43 for stopping the downward movement of the plate-shaped seedlings 49 is provided, and the stop plate 43 has a surface that intersects with the plate surface of the seedling tank 8, and is oriented so as to stop the downward movement of the plate-shaped seedlings 49. The plate 43 remains at its tip 47 even at the stop position.
is provided with a stop member that stops with a gap 60 between the seedling transport belt 17 and the seedling transport belt 17 so as not to contact the seedling transport belt 17;
This seedling planting machine is equipped with a seedling feeding stop device, in which an intermediate roll 48 is provided inside the rotation of the seedling feeding belt 17, which faces the seedling feeding belt 17.

(Example) An example of the present invention will be described with reference to the drawings.
1 is a passenger vehicle body, and a driver seat 2 is provided at the rear of the passenger vehicle body 1.

3 is a front wheel, 4 is a rear wheel, and 5 is a steering wheel.

A rice transplanting device 7 is attached to the rear of the vehicle body 1 via a vertical movement device 6. The rice transplanting device 7 includes a seedling tank 8,
Planting rod 9, center float 10, side float 1
It is formed by 1st grade.

The seedling tank 8 has a horizontal upper edge 50 and a horizontal lower edge 5.
1, a vertical right edge 52, and a vertical left edge 53, vertical ridges 54 are formed at predetermined intervals in the left-right direction, and between the vertical ridges 54, a partitioned seedling tank is formed. Form 55. The seedling tank 8 has a structure in which a plurality of divided seedling tanks 55 are installed side by side.

An L-shaped fixed receiving frame 56 fixed to the fixed frame side is provided below the horizontal lower edge 51 of the seedling tank 8, and the seedling tank 8 slides left and right on the fixed receiving frame 56.

One notch 57 is formed in the fixed receiving frame 56 at a position where the divided seedling tank 55 faces.

The rice transplanting device 7 moves up and down by operating the up and down movement device 6 using a hydraulic device.

Window holes 12 having short lengths are formed in the upper and lower ends of the partitioned seedling tank 55, respectively, at positions below the upper and lower middle, and upper and lower guide rolls 13 and lower guide rollers 13 and The rolls 14 are mounted on an upper shaft 15 and a lower shaft 16, respectively, and the upper guide roll 13 and the lower guide roll 1
The seedling feeding belt 17 is passed between the four parts.

The seedling transport belt 17 is attached so as to protrude upward from the bottom plate 18 of the seedling tank 8 and rotate. The seedlings are sent in the direction of the planting rod and are securely joined to the fixed receiving frame 56.

Among the upper shaft 15 and the lower shaft 16, the lower shaft 1
6 is a drive shaft, and an operating arm 20 is attached to the lower shaft 16 via a one-way clutch 19 (FIG. 5). The actuation arm 20 has a protrusion 21 formed at its tip.

A spring 22 is attached to the upper shaft 15 and is constantly pulled upward to tension the seedling transport belt 17.

A large number of protrusions 23 are formed on the surface of the seedling transport belt 17. A spring 24 is attached to the actuating arm 20.
is attached, and its elasticity always pulls it to the position shown by the solid line in Figure 3.

The lower end of the rod 25 is pivoted at an intermediate position in the length direction of the actuating arm 20, and the upper end 2 of the rod 25
6 is vertically slidably inserted through a support metal fitting 27 provided above the guide roll 13, and the upper end 26 projects upward from the support metal fitting 27.

Several insertion holes 28 are provided in the upper end 26 of the rod 25 in the length direction, and pins 29 are selectively inserted into the insertion holes 28.

A projection 21 is provided at the tip of the operating arm 20, and a seedling feeding cam 32 attached to a seedling feeding shaft 31 protruding from the planting section 30 faces near the projection 21. The seedling feeding cam 32 is constantly rotating.

Reference numeral 33 in FIG. 8 is a handle formed on the upper end 26 of the rod 25.

As shown in FIG. 6, the upper shaft 15 has a through hole 34.
, and insert the lower end 35 of the spring 22 into the through hole 34. Reference numeral 36 denotes a mounting frame, which is made entirely of angle steel.As shown in FIG.
A long hole 38 with a notch 39 is formed in the upper part of 6,
The upper shaft 15 is fitted through the notch 39, the lower end 35 of the spring 22 is engaged with the through hole 34, and the upper end of the spring 22 is engaged with the bent portion 40 at the upper end of the mounting frame 36.

At the lower end of the seedling tank 8, one stopper 41 is provided for each of the divided seedling tanks 55.
The stopper 41 is located at the horizontal lower edge 51 of the seedling tank 8.
A base portion 59 of a stopper 41 is fixed by a shaft 42 to attachment pieces 58 protruding from the seedling tank 8 provided on both left and right sides of the seedling tank 8, and the upper part of the stopper 41 is a free end.

As shown in FIG. 4, the stopper 41 has a square shape from the front and is formed of left and right support arms 44 and a stop plate 43 that connects the upper ends of the left and right support arms 44.

The stop plate 43 is connected to the bottom plate 18 of the seedling tank 8.
As shown in FIG. 3, the belt-like seedling belt 17 has a surface that intersects with the belt, and has a width in the left-right direction.As shown in FIG. Prevent it from moving downward.

A cut groove 45 is formed in the stop plate 43 from its leading edge 47.

A seedling floating prevention rod 46 is provided on the upper surface of the plate-shaped seedling 49 to prevent the plate-shaped seedling 49 from floating. When the stop plate 43 is rotated to the operating position, the cut groove 45 fits into the seedling lifting prevention rod 46 and the tip edge 47 touches the protrusion 2 of the seedling transport belt 17.
3, it stops with a gap 60.

An intermediate roll 48 is provided between the upper and lower guide rolls 13 and 14, and the leading edge 47 of the stop plate 43 faces the intermediate roll 48 in the operating position.

(effect) Next, we will discuss the effect.

Sitting on the driver's seat 2, operating the operating handle 5, lowering the rice transplanting device 7 by operating the hydraulic lever, and fitting and placing the plate-shaped seedlings 49 in the partitioned seedling tank 55 of the seedling tank 8. As the plate-shaped seedlings 49 move forward, they descend due to their own weight and the action of the seedling transport belt 17 and come into close contact with the fixed receiving frame 56. In this state, the seedling tank 8 moves from side to side on the fixed receiving frame 56, and the planting rod 9 When moving the notch 57 of the fixed receiving frame 56 from top to bottom, the plate-shaped seedlings 49 are divided one by one and planted in the paddy field.

When the planting with the planting rod 9 is completed by cutting off the lower ends of the plate-shaped seedlings 49 in a horizontal row, the seedling tank 8 is moved laterally to either the left or right end, and the seedlings are transferred to the constantly rotating seedling feeding cam 32 on the main body side. The protrusion 21 of the actuating arm 20 on the tank 8 side engages.

Then, the actuating arm 20 moves upward about the shaft 16 to the position indicated by the phantom line in FIG. The seedling feeding belt 17 is rotated to send out one seedling.

As described above, the seedling transport belt 17 is connected to the seedling tank 8.
The plate-shaped seedling 49 is provided at a position lower than the middle of the upper and lower sides of the seedling, and has an extremely short structure vertically compared to the known example, but the plate-shaped seedling 49 is heavy with wet soil and is prone to slipping on wet soil. Therefore, it is lowered by its own weight and brought into close contact with the fixed receiving frame 56.

However, as the work progresses and you get close to the edge of the field, it is necessary to leave a space that corresponds to the width of the rice transplanter and allow the rice transplanter to pass through. I end up trampling on it. For example, when planting rice using a 6-row rice transplanter, the stopper 41 is operated during the last rice planting so that just enough rice remains for the 6-row seedling transplanter to pass through.

That is, grasp the unnecessary plate-shaped seedling 49 with one hand and lift it upward, and then hold the stop plate 43 of the stopper 41 with the other hand.
The stopper 41, which had been in the non-operating position until then,
When the stop plate 43 is rotated approximately 180 degrees around the shaft 42 as shown in FIG. They are stopped leaving a gap 60 between them to prevent the plate-shaped seedlings 49 from descending, and are planted in, for example, three rows. At this time, the seedling feeding belt 17 is
Due to row planting, the seedling conveying belt 17 continues to rotate, but as described above, since there is a gap 60 between the stop plate 43 and the seedling conveying belt 17, there is no problem in the rotation of the seedling conveying belt 17.

In this case, when the stop plate 43 is located higher than the seedling transport belt 17, the plate-shaped seedlings 49 are rubbed against the seedling transport belt 17 and pulled up to a higher position, so that the bottom surface of the plate-shaped seedlings 49 does not collapse. However, in the present invention, the seedling transport belt 17 is very short and is configured to stop at an intermediate position between the upper and lower sides of the seedling transport belt 17, so that the lifting distance of the plate-shaped seedlings 49 is short.
Moreover, since only half of the seedling transport belt 17 is rubbed, there is little damage. Furthermore, when the seedling conveying belt 17 is stopped at a lower position, the stopped plate-shaped seedlings 49 come into full contact with the seedling conveying belt 17.
The seedling conveying belt 17 is damaged because it rotates to convey the other plate-shaped seedlings 49 that are not stopped, but in the present invention, since the seedling conveying belt 17 is stopped at an intermediate position between the upper and lower sides of the short seedling conveying belt 17, the seedling conveying belt 17 is not stopped. Even if it is subjected to the feeding action by No. 17, the damage is only half, and there is almost no effect in either case.

In addition, the plate-shaped seedlings 49 whose descent is prevented by the stop plate 43 may distort their hips and float up. However, in the present invention, the plate-shaped seedlings 49 are provided with a rod 46 for preventing the seedlings from floating. Prevent floating. Also,
The plate-shaped seedling 4 whose descent is prevented by the stop plate 43
9, when the waist is distorted as mentioned above, the seedling transport belt 1
7 may become depressed, resulting in the state shown in FIG. 8, but the intermediate roll 48 shown in FIG. 3 prevents this.

(Effects) A 6-row type rice transplanter can plant rice in 6 rows at the same time, but due to the field area, it ends up planting 2 or 3 rows.
Sometimes only rows remain, and in that case, the stop device is used to stop the rice transplanter and, for example, use a three-row type rice transplanter to transplant rice. The stop operation is to pull up the plate-shaped seedlings that have reached the fixed receiving frame to the upper position of the seedling tank,
It is stopped in the upper position by the stop mechanism.

In addition, the fixed receiving frame of the seedling tank is sloped low, and the plate-shaped seedlings slide down the slope and reach the fixed receiving frame, but since the plate-shaped seedlings that have reached the fixed receiving frame are planted, the situation is incomplete. Because of this, the seedlings are fed with a belt rather than a roller to ensure that the plate-like seedlings reach the fixed receiving frame.

Therefore, when a stop mechanism is attached to a rice transplanter using a seedling transport belt, a problem arises in that the seedling transport belt is rubbed and the plate-shaped seedlings are pulled up. In addition, the seedling transport belt is used to transport other plate-shaped seedlings that remain.
Since the seedling transport belt for the plate-shaped seedling portion that has been pulled up continues to rotate, there is also the problem of contact between the plate-shaped seedlings and the seedling transport belt.

With the above-mentioned known technology of rice transplanters in mind, if we look at the conventionally known Japanese Utility Model Application Publication No. 108313/1989, a stop mechanism is provided, but the seedling feeding device installed at the bottom of the seedling tank is a seedling feeding roller. However, the above-mentioned problem when using a seedling transport belt has not been solved at all.

In addition, although the conventionally known Utility Model Application Publication No. 57-11919 and Japanese Patent Application Publication No. 57-65119 describe the above-mentioned seedling feeding belt, they do not have a stop mechanism, so the seedling feeding belt and stop mechanism are not provided. There is no description of how to solve the above-mentioned problems with the mechanism.

However, in the present invention, the horizontal upper edge 50 and the horizontal lower edge 5
1 is formed on the plate surface of the square seedling tank 8 surrounded by the vertical right edge 52 and the vertical left edge 53, with vertical protrusions 54 at predetermined intervals in the left-right direction.
A partitioned seedling tank 55 is formed in between, and a plate-shaped seedling 49 is fixed to the fixed frame side and has a notch 57 formed at the lower part of the horizontal lower edge 51 of the seedling tank 8, through which the planting rod 9 passes from above. A fixed receiving frame 56 is provided, and the seedling tank 8 is configured to move left and right on the fixed receiving frame 56, and windows of short length are provided vertically at positions below the upper and lower intermediate portions of the plate surface of the partitioned seedling tank 55. Hole 12
An upper guide roll 13 and a lower guide roll 14 are respectively mounted on the upper and lower ends of the back side of the window hole 12, and the seedlings of the plate-shaped seedlings 49 are mounted on the upper guide roll 13 and the lower guide roll 14. The feed belt 17 is passed around, and a base 59 of a rotatable stopper 41 is fixed to the surface side of the lower part of the seedling tank 8 for each of the divided seedling tanks 55. A stop plate 43 for stopping the downward movement of the plate-shaped seedlings 49 on the plate surface of the seedling tank 8 is provided at an intermediate position between the upper and lower sides of the seedling transport belt 17, and the stop plate 43 is set against the plate surface of the seedling tank 8. The stop plate 43 has intersecting surfaces and is oriented so as to stop the downward movement of the plate-shaped seedlings 49, and the stop plate 43 is connected to the seedling conveying belt 17 so that its tip 47 does not come into contact with the seedling conveying belt 17 even in the stop position. Since the seedling transplanter is equipped with a seedling feed stop device that is provided with a stop member that stops with a gap 60 between them, (a) The seedling feed belt 17 is provided at a position below the upper and lower middle of the seedling tank 8, and is a well-known device. Compared to the example, although the structure is extremely short at the top and bottom,
Since the plate-shaped seedlings 49 are at least short belts, are heavy with wet soil, and are easy to slip on wet soil, they can be firmly attached to the fixed receiving frame 56.

(b) Although the seedling conveying belt 17 is constantly rotating, since there is a gap 60 between the stop plate 43 and the seedling conveying belt 17, there is no problem in the rotation of the seedling conveying belt 17.

C. Also, when the stop plate 43 is located higher than the seedling transport belt 17, the plate-shaped seedlings 49 are rubbed against the seedling transport belt 17 and pulled up to a higher position.
The bottom surface of the plate-shaped seedlings 49 may collapse and be damaged, but in the present invention, the seedling conveying belt 17 is short as described above, and the seedling conveying belt 17 is configured to stop at an intermediate position between the upper and lower sides. The lifting distance of the seedlings 49 is short, and the seedling feeding belt 1 is used when pulling up the seedlings 49.
Since only half of 7 is rubbed, there is little damage.

D When the seedling conveying belt 17 is stopped at a lower position, the stopped plate-shaped seedlings 49 come into full contact with the seedling conveying belt 17, and the seedling conveying belt 17 is connected to other plate-shaped seedlings 49 that are not stopped. Since the seedlings are constantly rotating for feeding, they are damaged, but in the present invention, the short seedling feeding belt 17 is stopped at an intermediate position between the top and bottom, so even if the seedlings are fed by the feeding action of the seedling feeding belt 17, the damage is reduced by half. There is almost no impact in either case.

Furthermore, the plate-shaped seedling 49 whose descent is prevented by the stop plate 43 may distort its waist and float up.
, horizontal lower edge 51 , vertical right edge 52 and vertical left edge 53
Vertical ridges 54 are formed at predetermined intervals in the left-right direction on the plate surface of the square seedling tank 8 surrounded by the ridges, and between the longitudinal ridges 54 a partitioned seedling tank 55 is formed.
A fixed receiving frame 56 for plate-shaped seedlings 49 is provided at a lower position of the horizontal lower edge 51 of the seedling tank 8, which is fixed to the fixed frame side and has a notch 57 through which the planting rod 9 passes from above. The seedling tank 8 is configured to move from side to side on the fixed receiving frame 56, and a window hole 12 having a short length is formed vertically at a position lower than the upper and lower middle portions of the plate surface of the divided seedling tank 55. An upper guide roll 13 and a lower guide roll 14 are mounted on upper and lower ends of the back side of the window hole 12, respectively, and the seedling transport belt 17 for the plate-shaped seedlings 49 is hung on the upper guide roll 13 and the lower guide roll 14. A vertically long seedling floating prevention rod 46 is provided on the upper surface side of the seedling feeding belt 17 and is attached to the seedling tank 8 side to prevent the plate-shaped seedlings 49 from floating. A base portion 59 of a rotatable stopper 41 is fixed to the surface side of the lower part of the seedling tank 55, and the rotatable end portion of the stopper 41 is provided with the base portion 59 of the stopper 41 at the upper and lower intermediate position of the seedling feeding belt 17. A stop plate 43 is provided to stop the downward movement of the plate-shaped seedlings 49 on the plate surface of the seedling tank 8, and the stop plate 43 has a surface that intersects with the plate surface of the seedling tank 8, and the plate-shaped seedlings 4
The stop plate 43 is provided with a cut groove 45 which is open at the tip 47 side and has a predetermined depth and which fits into the seedling lifting prevention rod 46. When the stop plate 43 rotates to the stop position, the seedling lifting prevention rod 46
The back of the cut groove 45 abuts against the tip 47.
Since this is a seedling planting machine with a seedling feeding stop device configured to stop at a position that does not contact the seedling feeding belt 17, floating of the plate-shaped seedlings 49 is prevented by the seedling lifting prevention rod 46.

Furthermore, in the second invention, when the stop plate 43 is rotated to the stop position, the seedling lifting prevention rod 46
The back of the cut groove 45 abuts against the tip 47.
Since it is configured to stop at a position that does not contact the seedling transport belt 17, it has a simple structure and reliable operation.

G. Furthermore, if the plate-shaped seedling 49 whose descent is prevented by the stop plate 43 is distorted as described above,
Although the seedling transport belt 17 may be recessed to become as shown in FIG. 8, in the third aspect of the present invention, the horizontal upper edge 50 and the horizontal lower edge 51 are connected to the vertical right edge 52 and the vertical left edge 53. Vertical ridges 54 are formed at predetermined intervals in the left-right direction on the plate surface of the square seedling tank 8 surrounded by , and a partitioned seedling tank 55 is formed between the longitudinal ridges 54 . The plate-shaped seedling 4 has a notch 57 fixed to the fixed frame side and through which the planting rod 9 passes from above at the lower position of the horizontal lower edge 51 of 8.
9 fixed receiving frames 56 are provided, and the seedling tank 8 is configured to move from side to side on the fixed receiving frames 56,
Window holes 12 having short vertical lengths are provided at positions lower than the upper and lower middle portions of the plate surface of the partitioned seedling tank 55, respectively.
An upper guide roll 13 and a lower guide roll 14 are formed at both upper and lower end positions on the back side of the window hole 12.
The seedling feeding belt 1 for the plate-shaped seedlings 49 is mounted on the upper guide roll 13 and the lower guide roll 14, respectively.
A base 59 of a rotatable stopper 41 is fixed to the surface side of the lower part of the seedling tank 8 for each partitioned seedling tank 55, and the rotary end of the stopper 41 is provided with the base 59 of a rotatable stopper 41. A stop plate 4 that stops the downward movement of the plate-shaped seedlings 49 on the plate surface of the seedling tank 8 at an intermediate position between the upper and lower sides of the feed belt 17
3 is provided, and the stop plate 43 is connected to the seedling tank 8.
The stop plate 43 has a surface that intersects with the plate surface of the plate and is oriented so as to stop the downward movement of the plate-shaped seedling 49.
7 is provided with a stop member that stops with a gap 60 between the seedling conveying belt 17 so as not to contact the seedling conveying belt 17, and the rotation of the seedling conveying belt 17 facing the tip 47 of the stop plate 43 is provided. Since the seedling planting machine is equipped with a seedling feed stop device which is provided with an intermediate roll 48 inside, the intermediate roll 48 prevents this.

[Brief explanation of the drawing]

Figure 1 is a side view of the whole, Figure 2 is a plan view of the whole, Figure 3 is a vertical side view of the main parts, Figure 4 is a perspective view of the stopper, Figure 5 is a plan view of the seedling tank, Figure 6 is a plan view of the seedling tank. The figure is a front view of the shaft and the spring, FIG. 7 is a perspective view of the mounting frame and the shaft, and FIG. 8 is a vertical sectional side view without the main intermediate roll. Explanation of symbols, 1...Vehicle body, 2...Driver seat, 3...Front wheel, 4...Rear wheel, 5...Control handle, 6...Vertical movement device, 7...Rice transplanting device, 8...Seedling tank, 9...Planting rod, 10... Central float, 11... Side float, 12... Window hole, 13... Guide roll, 14... Guide roll, 15... Upper shaft, 16... Lower shaft, 17... Seedling feeding belt, 18... Bottom plate, 19... One-way clutch, 20... Operating arm, 21... Protrusion, 22... Spring, 23... Protrusion, 24... Spring, 25... Rod, 2
6...Top end, 27...Supporting metal fittings, 28...Insertion port, 29
...pin, 30...planting part transmission, 31...seedling feeding shaft, 32...seedling feeding cam, 33...handle, 34...through hole,
35...lower end, 36...attachment part, 37...through hole, 38...
Elongated hole, 39... Notch, 40... Bent part, 41... Stopper, 42... Shaft, 43... Stop plate, 44... Support arm, 45... Cut groove, 46... Seedling floating prevention rod, 47
... Tip edge, 48 ... Intermediate roll, 49 ... Platy seedling, 5
0...Horizontal upper edge, 51...Horizontal lower edge, 52...Right edge, 5
3...left edge, 54...vertical ridge, 55...compartment seedling tank,
56... L-shaped fixed receiving frame, 57... Notch, 58... Mounting piece, 59... Base, 60... Gap.

Claims (1)

[Claims] 1. On the plate surface of the square seedling tank 8 surrounded by the horizontal upper edge 50, the horizontal lower edge 51, the vertical right edge 52, and the vertical left edge 53, the seedlings are placed at a predetermined interval in the left and right direction. Vertical ridges 54 are formed to form a partitioned seedling tank 55 between the vertical ridges 54, and the horizontal lower edge 51 of the seedling tank 8 is
A fixed receiving frame 56 for plate-shaped seedlings 49 is provided at a lower position of the fixed frame side and has a notch 57 through which the planting rod 9 passes from above, and the seedling tank 8 moves left and right on the fixed receiving frame 56. Window holes 12 having short vertical lengths are formed at positions lower than the upper and lower intermediate parts of the board surface of the partitioned seedling tank 55, respectively, and upper and lower end holes 12 are formed at both upper and lower end positions on the back side of the window holes 12. A guide roll 13 and a lower guide roll 14 are respectively mounted on shafts, and a seedling feeding belt 17 for the plate-shaped seedlings 49 is wrapped around the upper guide roll 13 and lower guide roll 14, and the seedling conveying belt 17 for the plate-shaped seedlings 49 is placed on the surface side of the lower position of the seedling tank 8. A base portion 59 of a rotatable stopper 41 is fixed to a shaft for each of the partitioned seedling tanks 55, and a rotary end portion of the stopper 41 is provided with a base portion 59 on the plate surface of the seedling tank 5 at an intermediate position between the upper and lower sides of the seedling feeding belt 17. A stop plate 43 is provided for stopping the downward movement of the plate-shaped seedlings 49, and the stop plate 43 has a surface that intersects with the plate surface of the seedling tank 8, and can stop the downward movement of the plate-shaped seedlings 49. Place it in the direction of
The stop plate 43 is provided with a stop member that stops with a gap 60 between the stop plate 43 and the seedling transport belt 17 so that its tip 47 does not come into contact with the seedling transport belt 17 even in the stop position. Machine. 2. Vertical protrusions 54 are formed at predetermined intervals in the left-right direction on the plate surface of the square seedling tank 8 surrounded by the horizontal upper edge 50, the horizontal lower edge 51, the vertical right edge 52, and the vertical left edge 53. A partitioned seedling tank 55 is formed between the longitudinal protrusions 54, and the horizontal lower edge 51 of the seedling tank 8 is
A fixed receiving frame 56 for plate-shaped seedlings 49 is provided at a lower position of the fixed frame side and has a notch 57 through which the planting rod 9 passes from above, and the seedling tank 8 moves left and right on the fixed receiving frame 56. Window holes 12 having short vertical lengths are formed at positions lower than the upper and lower intermediate parts of the board surface of the partitioned seedling tank 55, respectively, and upper and lower end holes 12 are formed at both upper and lower end positions on the back side of the window holes 12. A guide roll 13 and a lower guide roll 14 are respectively mounted on shafts, and a seedling transport belt 17 for the plate-shaped seedlings 49 is wound around the upper guide roll 13 and lower guide roll 14. A vertically long seedling floating prevention rod 46 is installed on the side of the seedling tank 8 to prevent the plate-shaped seedlings 49 from floating, and the partitioned seedling tank 55 is provided on the surface side of the lower part of the seedling tank 8. The base 59 of the stopper 41 is rotatable at each step.
A stop plate 43 is provided at the rotating end of the stopper 41 to stop the downward movement of the plate-shaped seedlings 49 on the plate surface of the seedling tank 8 at an intermediate position between the upper and lower sides of the seedling transport belt 17, The stop plate 43 has a surface that intersects with the plate surface of the seedling tank 8 and is attached in a direction that can stop the downward movement of the plate-shaped seedlings 49. The stop plate 43 has an open end 47 and a predetermined shape. A cut groove 45 having a depth that fits into the seedling lifting prevention rod 46 is formed, and when the stop plate 43 is rotated to the stop position, the cutting groove 45 is formed in the seedling lifting prevention rod 46. This seedling planting machine is equipped with a seedling feeding stop device, and is configured such that the tip 47 stops at a position where the back end of the seedling feeding belt 17 does not come into contact with the seedling feeding belt 17. 3. Vertical protrusions 54 are formed at predetermined intervals in the left-right direction on the plate surface of the square seedling tank 8 surrounded by the horizontal upper edge 50, the horizontal lower edge 51, the vertical right edge 52, and the vertical left edge 53. A partitioned seedling tank 55 is formed between the longitudinal protrusions 54, and the horizontal lower edge 51 of the seedling tank 8 is
A fixed receiving frame 56 for plate-shaped seedlings 49 is provided at a lower position of the fixed frame side and has a notch 57 through which the planting rod 9 passes from above, and the seedling tank 8 moves left and right on the fixed receiving frame 56. Window holes 12 having short vertical lengths are formed at positions lower than the upper and lower intermediate parts of the board surface of the partitioned seedling tank 55, respectively, and upper and lower end holes 12 are formed at both upper and lower end positions on the back side of the window holes 12. A guide roll 13 and a lower guide roll 14 are respectively mounted on shafts, and a seedling feeding belt 17 for the plate-shaped seedlings 49 is wrapped around the upper guide roll 13 and lower guide roll 14, and the seedling conveying belt 17 for the plate-shaped seedlings 49 is placed on the surface side of the lower position of the seedling tank 8. A base 59 of a rotatable stopper 41 is fixed to a shaft for each divisional seedling tank 55, and the rotary end of the stopper 41 has a base 59 on the plate surface of the seedling tank 8 at an intermediate position between the upper and lower sides of the seedling feeding belt 17. A stop plate 43 is provided for stopping the downward movement of the plate-shaped seedlings 49, and the stop plate 43 has a surface that intersects with the plate surface of the seedling tank 8, and can stop the downward movement of the plate-shaped seedlings 49. Place it in the direction of
The stop plate 43 is provided with a stop member that stops with a gap 60 between the stop plate 43 and the seedling conveying belt 17 so that the distal end 47 of the stop plate 43 does not come into contact with the seedling conveying belt 17 even in the stop position. A seedling planting machine with a seedling feeding stop device is provided with an intermediate roll 48 inside the rotation of the seedling feeding belt 17 facing the seedling feeding belt 17.