JPH07236325A - Rice transplanter - Google Patents

Abstract

PURPOSE:To use properly a powdery fertilizer and a pasty fertilizer depending upon weather and to enable application of an agent such as an insecticide simultaneously with manuring in a rice transplanter for applying a fertilizer together with planting a seedling. CONSTITUTION:A rice transplanter equipped with a seedling planting device B is provided with a powdery fertilizer applicator C for supplying a powdery fertilizer to the surface of a paddy field and a pasty fertilizer applicator D for supplying a pastry fertilizer or a pasty agent to the surface of a paddy field and these applicators C and D can be driven through a seedling planting mechanism 8 of the seedling planting device B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanter for fertilizing at the same time when planting seedlings.

[0002]

2. Description of the Related Art As a conventional rice transplanter of this type, as shown in Japanese Unexamined Patent Publication No. 5-316822, one that supplies powdered fertilizer at the same time as planting seedlings, Jikken Sho 63-49.
As disclosed in Japanese Patent Publication No. 148, a method of supplying paste-like fertilizer at the same time as planting seedlings, and further, Japanese Patent Laid-Open No. 4-18
As disclosed in Japanese Patent Publication No. 7006, there is one that can supply powdered fertilizer and spray chemicals such as insect repellent at the same time as planting seedlings.

[0003]

The type of supplying the fertilizer in powder form has a disadvantage that the fertilizer becomes damp on a rainy day and the supply amount varies and the hose is clogged.

On the other hand, the type that supplies paste-like fertilizer does not cause variations in supply amount or clogging on a rainy day, but the cost of paste-like fertilizer itself is higher than that of powder-type fertilizer. There is a high inconvenience.

However, conventional rice transplanters are inconvenient because there are no models that can selectively use powdered and paste fertilizers depending on the weather.

According to the present invention, it is possible to selectively use a powdery fertilizer and a paste fertilizer depending on the weather, and at the same time to apply fertilizer and spray a chemical such as an insect repellent,
Further, it is intended to provide a device therefor from a low cost.

[0007]

Means for Solving the Problems A feature of the present invention for achieving the above object is to provide a powder fertilizer and a paste for supplying powder fertilizer to a rice field in a paddy field vehicle equipped with a seedling planting device. A fertilizer or a paste-like fertilizer that supplies a paste-like chemical to the rice field is provided, and the seedling planting mechanism of the seedling planting device and the feeding mechanism of the powder fertilizer are connected through a linking mechanism to the seedling. The planting mechanism and the feeding mechanism are configured to be interlockable, and the feeding device of the paste fertilizer application is connected to the middle of the linking mechanism so that the feeding mechanism and the feeding device can be linked.

[0008]

[Function] On sunny days, inexpensive powdery fertilizer can be used, and on rainy days, paste-like fertilizer that does not easily cause clogging can be used.

Further, if a liquid chemical such as a herbicide or an insect repellent is put in the paste fertilizer application, it is possible to simultaneously spray the powdered fertilizer and the chemical.

Moreover, since the driving force of the powder fertilizer application device and the paste fertilizer application device is obtained from the seedling planting mechanism of the seedling planting device, the drive system of the powder fertilizer device and the paste fertilizer device is simplified.

[0011]

As a result of the above construction, the powdered fertilizer and the paste fertilizer can be selectively used depending on the weather and the like, and efficient work can be performed.

Moreover, if a chemical such as a herbicide or an insect repellent is put in the paste fertilizer application, there is an advantage that the powder-like fertilizer can be sprayed and the chemical can be sprayed at the same time, and the work depending on the application can be carried out.

Further, since the driving force of the powder fertilizer application device and the paste fertilizer application device is obtained from the seedling planting mechanism of the seedling planting device, the drive system of the powder fertilizer device and the paste fertilizer device is simplified, and the application The cost of the rice transplanter that can perform the work according to the above can be reduced.

[0014]

EXAMPLES Examples of the present invention will be described below with reference to a six-row planting type rice transplanter equipped with a fertilizer application device.

As shown in FIG. 1, the seedling planting device B is connected to the rear part of the traveling machine body A supported by the front wheels 1 and the rear wheels 2 via a link mechanism 4 which is vertically driven by a hydraulic cylinder 3. The seedling planting device B is equipped at its rear part with a powdery fertilizer application C for supplying powdery fertilizer to the rice field and a paste fertilizer application D for supplying pastey fertilizer to the rice field.

As shown in FIGS. 2 and 3, the seedling planting device B is provided with three planting transmission cases 5, and a horizontal axis P1 is provided on the left and right lateral sides of each planting transmission case 5. Seedling planting mechanism 8 consisting of a pair of planting cases 6 which are rotationally driven around and a pair of planting claws 7 provided at both ends of each planting case 6, a left and right reciprocating seedling stand 9, and ground leveling. Float 10
6-row planting type, etc.
The pair of planting claws 7 and 7 alternately take out the seedlings W from the seedling stand 9 and plant them on the rice field S in accordance with the rotation of.

The powdery fertilizer application device B comprises a hopper 11 for storing powdered fertilizer, a shutter 12 and a fertilizer feeding mechanism 14 containing a feeding roll 13, a downflow hose 15, and a grooving device 16 for forming a fertilizer groove. The fertilizer is applied to the lateral sides of the planted seedlings.

The rotary shaft 13a of the feeding roll 13 and the seedling planting mechanism 8 of the seedling planting apparatus B are interlocked and connected as follows.

On the front side of the fertilizer feeding mechanism 14, an intermediate shaft 17 is laid horizontally in parallel with the rotating shaft 13a of the feeding roll 13, and the intermediate shaft 17 and the rotating shaft 13 of the feeding roll 13 are provided.
Gears a and 19 are interlocked with gears 18 and 19 attached to one end thereof. Both ends of the intermediate shaft 17 are linked to the left and right seedling planting mechanisms 8 via crank link mechanisms 20a and 20b, respectively.

The crank link mechanisms 20a and 20b are driven arms 17a and 17b attached to both ends of the intermediate shaft 17, respectively.
And drive arms 21a and 21b that are installed over the claw cases at both ends of each planted case 6, and the driven arm 1
7a, 17b and push-pull rods 22a, 22b pivotally connecting the drive arms 21a, 21b, respectively, and the rotation phases of both crank link mechanisms 20a, 20b are set to differ by 90 degrees.

Therefore, by continuously rotating the planted case 6 forward at a constant speed, the feeding rolls 13 are continuously rotated backward at a constant speed.

Next, the paste fertilizer application device D for feeding the paste fertilizer into the rice field S will be described.

As shown in FIGS. 1 and 2, the fertilizer application device D includes a fertilizer tank 23 for storing paste-like fertilizers disposed on the left and right sides of the front of the machine, a fertilizer hose 24, and a fertilizer pump as a feeding device. 25, a fertilizer pipe 26, which is adapted to fertilize the planted seedlings in the vicinity of the lateral sides thereof.

As shown in FIG. 2, the fertilizer application pipe 26
Is cut out at the rear side of the fuselage below it, and the fertilizer outlet 26a
Are formed and are fixed to each float 10.

As shown in FIGS. 2 and 3, the support brackets 27 are fixed to the three planting transmission cases 5 behind the seedling stand 9, and the support brackets 27 are made of a cylindrical stainless steel. The support pipe 28 is erected and connected, and both ends of the support pipe 28 are closed by the support brackets 27. One fertilizer pipe 29 made of stainless steel is connected to the support pipe 28.
A fertilizer hose 24 from the fertilizer tank 23 is connected to the lower end of the.

Three fertilizer pumps 25 of the plunger type are fixed to the support pipe 28, and
A book connecting pipe 30 is connected to each of the suction ports (not shown) of the three fertilizer pumps 25, and a hose 31 from each fertilizer pump 25 is bifurcated into a pair of fertilizer pipes 2.
6 and 26.

With the structure described above, the fertilizer from the fertilizer tank 23 can be used as the fertilizer hose 24, the fertilizer pipe 29, and the support pipe 2.
8 is distributed and supplied to the three fertilizer pumps 25 via the communication pipe 30 and each fertilizer pump 25 is driven as described later, and fertilizer is fed from each fertilizer pump 25 to the hose 31.
Will be supplied to each fertilizer pipe 26 via.

As shown in FIGS. 3 and 4, the operation arm 32 is supported by the bracket 28a fixed to the support pipe 28 so as to be swingable around the horizontal axis P2, and the fertilizer pump 25
The upper end of the operation arm 32 is located on the plunger 25a. A pair of links 33 are supported by the operation arm 32 and the support pipe 28 so as to be vertically swingable, and the tips of the pair of links 33 are pin-connected. The link 33 connected to the pin is interlocked and connected to an intermediate portion of one push-pull rod 22b that drives the delivery roll 13.

The push-pull rod 22b is divided into an upper rod portion and a lower rod portion in order to swing the operating arm 32 without being caught by the rotation of the drive arm 21b. The rod portion is linearly configured.

With the above structure, when one of the planting claws 7 takes out the seedling W from the seedling placing table 9, both links 33 are in a horizontal posture, and from this state, the machine body is planted while advancing to the left side in the drawing of FIG. When the case 6 rotates counterclockwise in the drawing, the push-pull rod 22b is pulled to the planted case 6 side, both links 33 are rocked downward, and the operation arm 32 is rocked to the fertilizer pump 25 side. start. Thereby, the plunger 25 of the fertilizer pump 25 is operated by the operation arm 32.
When a is pushed, fertilizer begins to be sent out from the fertilizer application pipe 26. When one of the planting claws 7 holding the seedling W reaches the rice field S, the fertilizer pipe 26 has already sent the fertilizer linearly, and the seedling W is planted in the vicinity of the linear fertilizer.

As described above, when the planting case 6 makes one rotation and the seedling W is planted by the pair of planting claws 7, the plunger 25a of the fertilizer pump 25 is pushed twice in conjunction with this. Then, the fertilizer is sent from the fertilizer application pipe 26 into the rice field S.

Each fertilizer pump 25 is constructed so that the discharge amount can be adjusted by restricting the stroke of the plunger 25a of the pump 25.

The structure will be described. As shown in FIGS. 4 and 5, the contact arms 37 for restricting the return of the lever 36 and the plunger 25a are fixed to the support shaft 35 supported by the bracket 28a. And the lever 3
By rotating the contact arm 37 by 6 operations and pushing the plunger 25a, the return of the plunger 25a is restricted and the discharge amount can be adjusted.

The adjustment range of the discharge amount is the plunger 25.
The plunger 25 is pushed to the full stroke to completely regulate the return of the plunger 25a, and the plunger 25
It is configured to be changeable up to the range of the maximum discharge amount that completely allows the return of a.

Discharge rate adjusting lever 3 of the fertilizer pump 25
6, the shutter 12 of the fertilizer feeding mechanism 14 is linked with the mechanism 3
When the adjusting lever 36 is switched to the maximum discharge amount state, the shutter 12 is closed in conjunction therewith.

The linkage mechanism 38 includes a push-pull wire 39 linked to the operation arm 12a of the shutter 12.
A lever engaging portion 40 connected to the other end of the wire 39
and a swing arm 40 having a. The swing arm 40 is arranged in a desired state in the operation path of the discharge amount adjusting lever 36.

Guide plate 41 of the discharge amount adjusting lever 36
The first control path 42 for supplying only paste-like fertilizer to
a, a U-shaped lever guide having a second adjusting path 42b for simultaneously supplying both paste-like fertilizer and powdery manure, and a selecting path 42c for selecting the first adjusting path 42a and the second adjusting path 42b Groove 42 is formed and lever 36
Is operated from the first adjustment path 42a to the second adjustment path 42b in the selection path 42c, the shutter 12 is closed and opened via the linkage mechanism 38, and conversely, the second adjustment path 42b is changed to the first adjustment path 42b. When the adjusting path 42a is operated, it can be switched from open to closed.

When the discharge amount adjusting lever 36 is operated to the end of the route in the first adjusting route 42a and the second adjusting route 42b, the discharge amount is zero, the required minimum amount position is a little distant therefrom, and the necessary amount is required. The discharge amount can be arbitrarily adjusted within the range from the minimum amount position to the maximum discharge amount position before the selected path.

The swing arm 40 has a first adjustment path 42.
When operated from a to the second adjusting path 42b and, conversely, from the second adjusting path 42b to the first adjusting path 42a, the spring 43 can hold the position at each position.

Therefore, when the discharge amount adjusting lever 36 is operated in the first adjusting path 42a, only the paste-like fertilizer is supplied, and when it is operated in the second adjusting path 42b, the paste-like fertilizer and the powdery fertilizer are supplied. Both are supplied at the same time, and further, when operated to the end of the second adjusting path 42b, the supply of the paste-like fertilizer is stopped and only the powder-like fertilizer is supplied. In each of the paths 42a and 42b, the discharge amount of the paste fertilizer can be obtained according to the operation amount of the lever.

When chemicals such as herbicides and insect repellents are sprayed at the same time as fertilizer application, if the herbicide or insect repellent liquid is put into the fertilizer tank 23 of the paste fertilizer application D, the chemical spray is applied at the same time as the fertilizer application of powdered fertilizer. Can be done.

[Other Embodiment] In the above embodiment, the link 33 of the operation arm 32 is directly connected to the push / pull rod 22b.
However, if the action of the push-pull rod 22b is utilized, the link 33 may be indirectly linked to the push-pull rod 22b via a separate link mechanism.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

1] Overall side view

[Figure 2] Side view of the planting device

[Figure 3] Rear view of fertilizer application

FIG. 4 is a side view showing a support and drive structure of a fertilizer pump.

FIG. 5 is a schematic view showing the linkage between the adjusting lever and the feeding mechanism.

[Explanation of symbols]

 8 Seedling planting mechanism 14 Feeding mechanism 20b Coordinating mechanism 25 Feeding device B Seedling planting device C Powder fertilizer device D Paste fertilizer device

Claims (1)

[Claims] 1. A rice transplanter equipped with a seedling planting device (B), wherein a powdered fertilizer application device (C) for supplying powdered fertilizer into the field and a pasty fertilizer or pasty medicine in the field. And a paste fertilizer application (D)
The seedling planting mechanism (8) of the seedling planting device (B) and the feeding mechanism (14) of the powdered fertilizer application device (C) are connected via a linkage mechanism (20b) to the seedling planting mechanism (8). And feeding mechanism (1
4) and the feeding device (25) of the paste fertilizer application device (D) are connected to the linkage mechanism (20).
A rice transplanter which is connected in the middle of b) so that the feeding mechanism (14) and the feeding device (25) can be interlocked.