JP2007244337A - Traction unit for ill-drained paddy field - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a traction unit for ill-drained paddy field, solving the problem that a boat sliding on a lotus root field under traction becomes difficult to slide due to the accumulation of obstacles such as stems on its tip and also its size is limited for the purpose of carrying lotus roots and its stability is poor. <P>SOLUTION: The traction unit has the following construction and mechanism. A fertilizer spreader 16 is loaded on a frame assembly 5 with multiple floats 6<SB>1</SB>-6<SB>4</SB>unitedly joined through frame components 22 and 23. For the outside floats 6<SB>1</SB>and 6<SB>4</SB>, the space therebetween can be adjusted by varying the fitting position of the frame component 23 by a fixing pin 46. The tip of each of the floats is furnished with a projectedly pointed guide component 25. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a towed device that is used in a wet field and is towed by a tow vehicle and slides on the wet field, and is particularly suitable for a fertilizer spraying device that sprays fertilizer on a lotus field. It relates to the float structure.

  Conventionally, it has been equipped with a scraper working machine mounted on a towing vehicle and a fertilizer spraying device mounted on a field boat pulled by a towing vehicle, and at Hasuneda, it is possible to simultaneously spread fertilizer at the time of scraping work. A machine unit has been devised (see Patent Document 1).

  With this work unit, fertilizer can be sprayed at the same time as the cutting work, the work time can be shortened, the burden on the operator is reduced, and the fertilizer becomes easy to mix in the soil that has just been scraped. Can improve the spraying efficiency.

JP 2004-57082 A

  Since the conventional fertilizer spreader is mounted on a rectangular field boat in plan view, when it slides on a paddy field pulled by a scraping work machine, it has a lotus root such as a stem that is agitated and lifted by the scraping work. The remaining residue becomes an obstacle and is caught by the front part of the above-mentioned boat and accumulates, and the smooth sliding of the boat with the fertilizer application device is hindered. For this reason, it is necessary to interrupt the scraping / fertilizer work and to frequently remove the stems caught on the above-mentioned boats, which causes a reduction in work efficiency.

  Further, since the above-mentioned field boat has a constant area in plan view, the size of the field boat is regulated by restrictions on transportation by a light truck or the like, and the buoyancy of the field boat is not sufficient. For this reason, the load of fertilizer on the boat is limited, the boat is not stabilized in the width direction, the loading posture of the boat is changed depending on the remaining amount of the fertilizer hopper, and the fertilizer application range is uneven Problems such as becoming fertilizer application also occur.

  Therefore, the present invention provides a towed device for a wetland which has a structure in which an obstacle such as a stem is not easily caught when sliding on a wetland and has sufficient and stable buoyancy, thereby eliminating the above-described problems. It is intended to provide.

The present invention according to claim 1 is a towed device for a wet field that is mounted with a predetermined weight (16) and is towed on the wet field and slides.
A plurality of floats (6) having a cylindrical shape that is long in the sliding direction and a sealed space inside;
A frame member (22, 23) for connecting the plurality of floats in the width direction and connecting them together;
The towed apparatus for wetlands is characterized by sliding on the wetlands by the buoyancy of the plurality of floats connected together.

In the present invention according to claim 2, at least the outer side in the width direction (6 ₁ , 6 ₄ ) of the plurality of floats is arranged in the width direction with respect to the float (6 ₂ , 6 ₃ ) adjacent to the inner side. Is connected to the frame member (23) so as to freely change the interval of
The width direction of the whole of the plurality of floats (5) is configured to be changeable.
It is in the towed apparatus for wet fields according to claim 1.

According to a third aspect of the present invention, at least one of the plurality of floats on the outside in the width direction (6 ₁ , 6 ₄ ) is floated relative to the float (6 ₂ , 6 ₃ ) adjacent to the inside. Connected to the frame member (23) so as to be freely changeable in the length direction,
The length direction of all the plurality of floats (5) is configured to be changeable.
It exists in the towed apparatus for wet fields of Claim 1 or 2.

The present invention according to claim 4 is provided with a tip-shaped guide member (25) for scraping mud and the like left and right at the tip in the sliding direction of the float (6).
It exists in the towed apparatus for wet fields in any one of Claims 1 thru | or 3.

As for this invention which concerns on Claim 5, the said predetermined weight thing is a fertilizer spraying apparatus (16),
It exists in the towed apparatus for wet fields of any one of Claim 1 thru | or 4.

  According to the first aspect of the present invention, the towed device for wetlands is composed of a plurality of cylindrical floats connected in a row in the width direction by a frame member, and each float has a space sealed inside. And when working, they are connected at intervals, so they have sufficient buoyancy and are stable in the width direction, and when towed and slid over the wet fields, obstacles such as stems, Each float is distributed to the left and right, and it can be reduced that it accumulates in the front and obstructs sliding.

  Since the present invention according to claim 2 is capable of changing the entire width direction of the entire plurality of floats, for example, during transportation, while the entire width can be minimized and the width does not hinder transportation, When used on a wetland, the entire width can be expanded and stable sliding can be performed, and the environment such as the amount of loads such as fertilizer, the state of wetlands, the amount of obstacles such as stems in the wetland, etc. Alternatively, the overall width can be adjusted according to the required stability of the type of work, conditions, etc., and the skiing can be performed with high stability.

  According to the third aspect of the present invention, since the float length direction of the entire plurality of floats can be freely changed, the transport performance and the sliding stability performance during use can be improved.

  According to the fourth aspect of the present invention, since the tip-shaped guide member is provided at the tip of the float, the sliding resistance is reduced by scraping mud and the like, and the sorting performance of obstacles such as stems is improved. Can do.

  According to the fifth aspect of the present invention, an obstacle such as a lotus root stalk is caught by mounting a fertilizer spraying device and pulling it with a towing vehicle equipped with, for example, a shaving work machine and using it for the lotus root. It is possible to carry out highly accurate fertilizer work with high work efficiency by reducing the work interruption due to the fact that the fertilizer popper is loaded with many fertilizers at once and the change in posture of the fertilizer spraying device due to the residual fertilizer of the fertilizer popper is reduced. it can.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the skimming / fertilizer spreading work unit 1 includes a tow vehicle 2, an operator boarding boat 3, and a float assembly equipped with a fertilizer spreader according to the present invention (towed for wet fields). Device) 5 and connected in series in the running direction via connecting members 7 and 8.

  The towing vehicle 1 is a walking type management machine equipped with a cage-type paddy wheel 10 and the power from the engine 11 is transmitted to the paddy wheel 10 so as to travel on a wet field such as Hasuneda and perform a scraping operation. The management machine 2 is provided with a connecting portion 12 that extends rearward through a connecting pin 14, and an operation handle 13 that extends rearward from the machine body.

  The leading end of the boat 3 is connected to the rear end of the connecting portion 12 via a connecting member 7 so that the boat 3 is pulled by the management machine 2. An operator gets on the boat 3 and operates the fertilizer application device 16 while operating the management machine 2 with the operation handle 13. The boat 3 is formed of a watertight flat plate-like float whose upper surface has a rectangular shape in plan view and whose upper surface is flat. A connecting member 8 is rotatably connected to the rear end portion of the field boat 3, and a connecting portion 19 of the fertilizer application device mounted float assembly 5 is connected to the rear end of the connecting member 8 by a pin 20. Yes. A tip-shaped guide member 25 having a triangular shape in plan view is provided at a tip portion of the float 6... When the float assembly 5 slides on the wetland by the guide member 25, each float 6 is Distribute obstacles such as mud and stems to the left and right.

  As shown in detail in FIGS. 3 and 4, the float assembly 5 (the towed device) includes a plurality of (four in the present embodiment) cylindrical (tubular) elongated floats 6... 6 are all pipes made of vinyl chloride having the same diameter and length, and are integrally connected by a frame assembly 20 made of a plurality of frame members arranged in the width direction. Each float 6 has a sealed space inside and has sufficient buoyancy. In FIG. 1 (the same applies to FIGS. 3 and 5), A indicates the water surface of the wet field (Hareneda), and B indicates the mud surface. The floats 6 need not all have the same length and diameter, and may be formed of a material other than vinyl chloride.

A fertilizer spraying device 16 is mounted on the float assembly 5. The fertilizer spraying device 16 has a fertilizer hopper 27 and an engine 29 as a power source for stirring and spreading the fertilizer in the hopper, and two frames 30 on which these are placed are provided in the center. Are fixed on a mounting frame 31 provided on the floats 6 ₂ and 6 ₃ . A shutter 31 for opening or closing the fertilizer dropping port 27a is disposed at the lower portion of the fertilizer hopper 27, and a fertilizer diffusing disc 33 is disposed from the dropping port 27a via a shooter 32 (see FIG. 1). ing. A stirring bar 35 is disposed in the hopper 27, and the disk 33 and the stirring bar 35 are driven by the engine 29 via a power transmission device (not shown).

  The fertilizer hopper 27 is fixed by a plurality of support rods 36 provided on the mounting frame 30, and the spreading disc 33 is disposed on the mounting frame 30 via a bracket 37 (see FIG. 1). ing. An engine 29 is fixed to the mounting frame 30 in front of the hopper 27, and an engine card frame 39 covering the engine is fixed.

  A shutter link plate 40 is pivotally supported by the frame assembly 20 on the right side of the engine, and an operation lever 41 extending in the vicinity of the pivot shaft of the link plate toward the front (the operator boarding boat 3). Is fixed. A rod 38 is connected to the distal end portion of the link plate 40 so that the mounting position can be changed. The rod 38 is connected to the fertilizer shutter 31 via a shutter amount adjusting device 42 and an arm 44.

Mounting brackets 45 are fixed to the front and rear portions of each float 6, and the frame assembly 20 has an inner lateral frame member 22 that connects the brackets 45 of the two inner floats 6 ₂ , 6 ₃ to each other. , 22 and outer lateral frames 23, 23 for connecting the brackets 45 of the two left and right floats 6 ₁ , 6 ₂ and 6 ₃ , 6 ₄ to each other. The inner horizontal frames 22 and 22 are fixed at a fixed position, and the distance L1 between the floats 6 ₂ and 6 ₃ is kept constant. The left and right and front and rear outer lateral frames 23 are fixed at fixed positions with respect to the outermost floats 6 ₁ and 6 ₄ , and are provided on the mounting bracket 45 with respect to the inner floats 6 ₂ and 6 ₃ . And three fixing connection holes 23a, 23b, and 23c are provided in each of the pipes 49 so as to be slidable. By selecting these connection holes and inserting the fixing pins 46, the interval is increased. Can be adjusted and fixed.

Therefore, as shown in FIGS. 3 and 4, by inserting and fixing the fixing pin 46 into the standard connecting hole 23a, the gaps L2 between the floats 6 ₁ , 6 ₂ and 6 ₃ , 6 _{4 on} both sides are formed. The entire width of the float assembly (the towed device) 5 is in the standard working state, and as shown in FIGS. 5 and 7, the fixing pins 46 are inserted into the wide connecting holes 23b and fixed, thereby the floats 6 on both sides The entire width of the float assembly 5 having the interval L3 of ₁ , 6 ₂ and 6 ₃ , 6 ₄ is in a wide working state, and the fixing pin 46 is inserted into the narrow connection hole 23c as shown in FIGS. By fixing in this way, the entire width of the float assembly 5 consisting of the distance L4 between the floats 6 ₁ , 6 ₂ and 6 ₃ , 6 ₄ on both sides becomes a narrow state used during transportation or storage.

FIG. 9 shows a state in which the left and right outermost floats 6 ₁ and 6 ₄ are moved forward and fixed with respect to the inner floats 6 ₂ and 6 ₃ . In this state, the distance LB is longer than the distance LA in the standard state shown in FIG. 4, and the total length of the float assembly 5 is changed. As a changing method, a well-known change fixing means such as adjusting the mounting position of the left and right outer mounting brackets 45 to the floats 6 ₁ and 6 ₄ back and forth can be used. In FIG. 9, the width direction is set to the standard work width state. However, the present invention is not limited to this, and the overall length may be increased in the wide work state to increase stability in the front-rear direction, not limited to the width direction. In addition, in the narrow storage / transport width state, the overall length may be shortened (for example, the front-rear direction difference of each float is set to 0) to further reduce the plane area of the float assembly 5.

  In FIG. 4, reference numeral 51 denotes an auxiliary frame of the connecting portion 19, and 52 denotes a step plate that serves as a scaffold for the worker.

The float assembly 5 has two inner floats 6 ₂ and 6 ₃ fixed by the inner lateral frame member 22 and held in a fixed relationship, and the two left and right floats 6 ₁ and 6 ₄ are connected to the inner float. 6 ₂ and 6 ₃ are changed to have the same interval. Therefore, the float aggregate 5 is symmetrical with respect to the fertilizer application device 16 that is a heavy object, and has a structure divided into a plurality of parts on the left and right.

  Next, the operation using the present scraper / fertilizer application work unit 1 will be described. An operator rides on the boat 3 and operates the management machine 2 as a towing vehicle with the handle 13 to perform a scraping operation while traveling on Hasuneda. As the management machine 2 travels, the boat 3 and the float assembly 5 are pulled through the connecting members 7 and 8 and slide on the wetlands. An operator on the boat 3 operates the shutter 31 of the fertilizer application device 16 with the handle 41 simultaneously with the operation of the management machine 2. Thereby, in Hasuneda, the fertilizer application | coating work is performed simultaneously with the scraping work.

  Hasuneda has long obstacles such as lotus root stems, and the obstacles rise with mud due to the scraping work, and in front of the float assembly 5 on which the heavy fertilizer spraying device 16 is mounted. Although the above-mentioned obstacle hits, since the float aggregate 5 is divided and formed by a plurality of floats 6, the obstacle is scraped at the tip of each float 6 together with mud, especially the tip of each float. Since the tip-shaped guide member 25 is fixed, the obstacle is divided into left and right together with the mud by the guide member 25 and flows between the floats and outside. As a result, it is possible to reduce obstacles accumulated in front of the float assembly 5 and make it difficult to slide, and to significantly reduce the number of times that the scraping and fertilizer application work is interrupted for the removal of obstacles, Reduces the sliding resistance of the float assembly, enables the work equipment unit to run faster, and improves work efficiency.

  Further, the full width or the total length of the float assembly 6 depends on the wet paddy field state, the working state, the load weight of fertilizer, etc., the standard working width state shown in FIGS. 3 and 4, the wide working width state shown in FIGS. The full length extension state shown in FIG. 9 is selected. Each float 6 has sufficient buoyancy in the float assembly 5, and the overall width and / or length is adjusted according to the environment, so that appropriate stability in the width direction and / or the length direction is obtained. Thereby, appropriate fertilizer spraying by the fertilizer spraying device 16 is performed.

  When the work is completed and transported and stored by the truck, as shown in FIGS. 6 and 8, the float assembly 5 is changed to the narrow storage / transportation width state. Thereby, the float assembly 5 is easily transported and stored in a compact state in plan view with the fertilizer application device 16 mounted and fixed.

  The above-described fertilizer spreader is driven by an engine 29 mounted and fixed on the float assembly 5, which is transmitted from a PTO shaft of a traction vehicle such as a management machine via a transmission means such as a flexible joint. May be. Further, the float assembly 5 may be used for boarding an operator instead of the boat 3.

  In addition, this float assembly is suitable for use in the above fertilizer spraying device, but is not limited to this, for example, transporting harvested products at Hasuneda, mounting a compressor during harvesting operations, and further in wetlands other than Hasuneda Of course, it may be used for other purposes such as the use of.

The side view which shows the whole working machine unit which applied this invention to the fertilizer spraying apparatus. The plan view. The front view (standard work width state) which shows the float aggregate (towed device) carrying a manure spreader. The plan view. The front view of the float aggregate | assembly of a wide work width state. The front view of the float aggregate | assembly of the width state at the time of narrow accommodation and conveyance. The top view of the float aggregate | assembly of a wide working width state. The top view of the float aggregate | assembly of a width state at the time of narrow accommodation and conveyance. The top view of the float assembly of a full length extension state (standard working width state).

Explanation of symbols

1 Working machine unit 2 Towing vehicle (management machine)
3 Tabune 5 Wet field towed device (float assembly)
6,6 _{1-6 4} float 16 heavy (fertilizer spreader device)
20 Frame assembly 22 (Inner side) Frame member 23 (Outer side) Frame member 25 Guide member

Claims (5)

It is a towed device for a wet field that carries a predetermined weight and slides while being pulled over the wet field.
A plurality of floats that are long in the sliding direction and sealed inside,
A frame member that aligns these multiple floats in the width direction and connects them together;
A towed apparatus for a wet field, which slides on the wet field by the buoyancy of the plurality of floats connected together. At least one of the plurality of floats on the outer side in the width direction is connected to the frame member so that the interval in the width direction can be changed with respect to the float adjacent to the inner side of the float.
The width direction of the entire plurality of floats is configured to be changeable.
The towed apparatus for wet fields according to claim 1. The at least one of the plurality of floats outside in the width direction is connected to the frame member so as to be changeable in the length direction of the float with respect to the float adjacent to the inside of the float,
The entire length of the plurality of floats is configured to be changeable.
The towed apparatus for wetlands according to claim 1 or 2. The tip of the float in the sliding direction is provided with a pointed guide member that scrapes mud and the like left and right,
The towed apparatus for wet fields according to any one of claims 1 to 3. The predetermined weight is a fertilizer application device,
The towed apparatus for wetlands according to any one of claims 1 to 4.

Images