JP2006067892A - Combined agricultural work vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a low-cost combined agricultural work vehicle having small size, light weight and quick action, dispensing with the use of a balance weight and foldable to reduce the longitudinal length to about a half. <P>SOLUTION: The combined work vehicle performs a series of operations such as tilling, laying of a perforated film, soil covering and pressing. The vehicle is provided with a 1st folding mechanism having a flip-up mechanism to flip up a pressing wheel and a soil-covering disk constituting a part of the work vehicle from horizontal position contacting with the ground surface to nearly perpendicular direction, and a 2nd folding mechanism having a 4-joint link mechanism having two fixed joints on a protruded frame of a tiller at the right and left sides of the work vehicle to enable the transfer of the whole work vehicle from a position contacting with the ground surface at the back of the tiller to the part above the tilling rotary of the tiller while keeping the upper and lower relationship. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an agricultural multi-task machine that simultaneously performs field tillage, formation of rice, sowing, covering with a perforated film, and the like.

  For the purpose of labor saving in farm work, a composite work machine in which various work machines are attached to a tiller has been developed. A typical example is a multitasking machine called Cedar Multi. This combined work machine cedar multi is a machine that performs a series of a plurality of operations in which a perforated film is coated on a seam and seeded in a hole of the perforated film. The perforated film is a resin film with holes to cover the seams to prevent weeds, sustain fertilization, and keep warm. Usually, the perforated film has a thickness of 0.02 mm, a width of 95 cm to 150 cm, a length of 200 m, a weight of 5 kg to 10 kg, and is wound in a roll shape. There are various types of working machines, but there are also working machines that do not cover a perforated film but only plow, sowing, and covering soil.

  The multi-function machine Cedar Multi performs a series of operations by one person in one step, (1) cultivation of the field (2) formation of the rice (3) sowing and covering (4) covering and fixing the perforated film (5) pressing. . The seeds are sown from the seeder mounted on the multi-function machine Cedar Multi so as to match the location of the hole in the perforated film. The combined work machine seeder multi has a structure that is long in the front-rear direction and limited to slow linear movement. (See Patent Document 1)

  FIG. 6 is a side view of a conventional combined work machine seeder multi. As shown in FIG. 6, the combined work machine seeder multi 100 includes a cultivator 20 and a work machine 30. The combined work machine seeder multi 100 has a structure in which the work machine 30 is attached to the rear of the tiller 20. The tiller 20 is provided with a wheel 2 and a tilling rotary 3 behind the wheel 2. On the upper and rear periphery of the tillage rotary 3, a ridge forming plate 4 is provided. The engine 13 drives the wheel 2 and the tilling rotary 3. The battery 14 is 12 V and is used as a power source for the control circuit of the seeder 6. The multi-function machine cedar multi 100 advances in the left direction indicated by the arrow in FIG. 6 and performs the work while holding the handle 18 and moving backward. The balance weight 1 is provided so as to balance the weight of the work machine 30. When changing the direction of the combined work machine seeder multi 100 from the bow to the bow, it is necessary to move the work machine away from the bow, but in addition to the weight of the balance weight 1, the weight is applied to the handle 18 and pushed from the top to the bottom. Thus, the work implement 30 can be lifted with the wheel 2 as a fulcrum.

  The work machine 30 is one in which various devices are mounted on the base frame 15. The base frame 15 is connected to the overhanging frame 12 of the tiller 20. The height adjusting tail wheel 5 is lowered from the tillage rotary 3 during movement and operates as a four-wheeled vehicle together with the wheels 2. The grooved plate 19 digs grooves on the left and right sides of the ridge. The height of the seam can be adjusted by moving the position of the groove plate 19 up and down.

  The seeder 6 is a device that takes out a predetermined amount to be seeded at a time from the bottom of a box packed with seeds, and sends it out to a tube. The seeding depth can be adjusted by the amount of the tube through which the seed passes. The seeder 6 has a room partitioned inside, and a movable plate that takes out an appropriate amount to be seeded at a time at the bottom. The seed is dropped from the seeder 6 at the timing when the hole of the perforated film is detected by the hole detector 10, and the hole of the perforated film comes to the position where the seed has dropped.

  A film roll 11 is attached to the tip of a rack 16 extending vertically from the base frame 15, and is rewound to supply a perforated film 17. The perforated film 17 goes under the pressure roller 7 and covers the seam via the hole detector. The pressure-reducing roller is a roller having a width corresponding to the width of the surface and presses the entire surface of the surface. A film presser wheel 8 and a film fixing earthing disk 9 are provided at the left and right ends of the work machine 30. The film presser wheel 8 presses the end of the perforated film 17, and the film fixing earthing disk 9 hangs soil on the end of the perforated film 17 and fixes it.

In the combined work machine seeder multi 100 having such a configuration, the balance weight 1 has a weight of, for example, 30 kg or more, and thus it is necessary to make a structure that supports the balance weight 1 firmly. Accordingly, the weight of the multi-task machine cedar multi 100 is increased. As the weight increases, thicker and larger tires are required, resulting in the need for a larger engine and a further increase in weight. For this reason, the combined work machine cedar multi 100 is enlarged, and only a man with physical strength can drive it. This is one of the sources of concern for the aging of agriculture. In addition, when the weight of the multi-function machine cedar mulch 100 increases, the soil of the field as a whole is hardened, which is not preferable for growing vegetables. In particular, radish is a big problem as a farmer because it grows deformed when the ground is hard.
JP-A-01-187019 Japanese Utility Model Publication No. 04-68655

  SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and its purpose is to make a compact, lightweight, agile, and inexpensive agricultural combined work machine that does not require a balance weight and can be folded in half in the longitudinal direction. Is to provide.

  The agricultural combined work machine according to the present invention has a work machine attached to the rear of a tiller having a tillage rotary, and a series of operations such as field tillage, formation of corn, sowing and covering soil, covering and fixing perforated film, and pressure reduction. In the combined work machine, a bracket for connecting the presser wheel for pressing the perforated film to the ground and a soil disk, and a connecting rod connected to the base frame of the work machine with a central portion of the bracket as a node A first folding mechanism provided with a flip-up mechanism at one end of the connecting rod, wherein the presser wheel and the earthing disc are flipped up in a substantially right angle direction from a horizontal position in contact with the ground surface; At the left and right ends of the cultivator, a four-joint link mechanism having two fixed knives is provided on the extension frame of the cultivator, and the position of the work implement as a whole in contact with the ground surface behind the cultivator Et al, wherein the top of the tilling rotary of tiller, a second folding mechanism which is rotated by holding the top and bottom relationship is characterized in that it is equipped.

  The agricultural combined work machine according to the present invention is (1) the center of gravity of the combined work machine can be moved to the handle side by a plurality of stages of folding having the first folding mechanism and the second folding mechanism. it can. (2) Therefore, a large tire or a sturdy frame structure is not required, and it is light weight, requires less horsepower, and can be a machine that is energy saving and easy to handle. (3) Since the center of gravity of the cultivator can easily move to the handle side, in the folded state, even if the force pushing the handle downward is small, the rear part of the multi-task machine can be easily lifted up. It is easy to change the direction and get over the field.

  Furthermore, (4) it can be reduced to about half the original length by compact folding, so that the storage space can be reduced. (5) Since the working machine is not rotated but folded while maintaining a vertical relationship, the seed storage box of the seeder does not lie down or flip upside down. For this reason, it is possible to maintain an appropriate amount of seeds to be seeded at one time which is divided and taken out into a partition room inside the seeder. In addition, seeds do not spill out even when the seeder box has no lid.

  The agricultural multi-task machine according to the present invention will be described in detail with reference to the drawings, taking a multi-task machine seeder multi as an example.

  FIG. 1 shows a side view of a multi-function machine seeder multi according to the present invention. As shown in FIG. 1, a combined work machine seeder multi 200 is an application of the present invention to a combined work machine seeder multi 100 that performs tilling, sowing, covering, and pressure reduction. Therefore, the same reference numerals are given to the same components as those of the conventional combined work machine seeder multi 100 shown in FIG. The front of the multi-function machine cedar multi 200 indicates the left side of the drawing, and the rear thereof indicates the right side of the drawing.

  The multi-function machine cedar multi 200 includes a multi-stage folding mechanism of a first folding mechanism and a second folding mechanism. The first folding mechanism includes a bracket 34 that connects the presser wheel 8 that presses the perforated film 17 to the ground and the earthing disc 9, and a connecting rod 33 that connects the central portion of the bracket 34 and the base frame 15 of the work implement. And a flip-up mechanism is provided at one end of the connecting rod 33. Specifically, the flip-up mechanism is composed of two stoppers (not shown) that determine the moving angle of the connecting rod and a spring 47, and is attached to the base frame 15 and the connecting rod 33 with metal fittings. Thereby, the presser wheel 8 and the earthing disc 9 which are a part of the work machine can be flipped up in a substantially right angle direction from a horizontal position in contact with the ground surface.

  The second folding mechanism includes a base frame 15, a first frame 31 provided at one end thereof, and a second frame 32 provided at the other end, and these three frames include four nodes 41 and 42. , 43 and 44 are rotatably connected. The nodes 41 and 43 are fixed nodes connected to the overhanging frame 12 of the tiller 20. These form a four-node link mechanism.

  That is, a four-joint link mechanism having two fixed joints on the overhanging frame 12 is provided at the left and right ends of the work implement 30, and this link mechanism is rotated in the front-rear direction so that the work implement 30 as a whole is It is configured so that it can be moved from the position in contact with the ground surface behind 20 to an intermediate position between the drive shaft of the wheel 2 of the tiller 20 and the shaft of the tillage rotary 3 at the upper part of the tiller 20 while maintaining a vertical relationship. is doing.

  FIG. 2 is a side view of the multi-function machine cedar multi 200 when the presser wheel 8 and the earthing disk 9 are flipped up by the first folding mechanism. The flip-up mechanism is composed of two stoppers and springs 47 that determine the moving angle of the connecting rod, and is provided between the base frame 15 and the connecting rod 33, so that the presser wheel 8 and the earthing disc 9 can be easily moved upward. Can jump up. Although only one spring 47 is shown in the figure, it is provided on both sides of the connecting rod, and stably pulls the connecting rod 33 only in two predetermined angular directions.

  FIG. 3 is a side view of the combined work machine seeder multi 200 when the entire work machine 30 is folded by the second folding mechanism. As shown in FIG. 3, the second folding mechanism includes a first frame 31, a second frame 32, a base frame 15, and a link mechanism including four nodes 41, 42, 43, and 44. The second folding mechanism folds the link mechanism by rotating the link mechanism from the rear of the multi-task machine cedar multi to the upper front by human power. As shown in FIG. 3, various devices of the work machine 30 are mounted on the base frame 15, and the base frame 15 is moved while maintaining a vertical relationship including the seeding machine 6.

  The first frame 31 is rotated about 150 degrees around the node 41. Although not shown in order to facilitate rotation of the link mechanism, a flip-up mechanism using a stopper and a spring is provided around the node 41 of the first frame 31 to facilitate this rotation. A similar mechanism is also provided around the node 43.

  FIG. 4 is a side view in the case where the tilling rotary side of the multi-task machine cedar multi 200 rides on a gap road with a step or a transfer plate to a truck bed. Since the working machine 30 is folded at an intermediate position between the wheel 2 and the tilling rotary 3 at the upper part of the tiller 20, when the weight is applied to the handle 18 in the direction of the arrow, the working machine 30 is easily cultivated. The rotary 3 side can be easily lifted. Therefore, the undulation plate 4 and the height adjusting tail wheel 5 can be overcome without hitting the side wall or the transfer plate of the road. The multi-tasking machine seeder multi 200 can be smoothly advanced by performing the riding operation while the wheel 2 is advanced in the forward low speed mode.

FIG. 5 is a perspective view showing a frame structure of the combined work machine seeder multi 200. As shown in FIG. 5, the handle 18, the wheel 2, the seam forming plate 4, and the like of the tiller 20 are in front of the combined work machine seeder multi 200, and the work machine 30 is provided in the rear. Each frame is indicated by a thick solid line. Various devices mounted on the work machine 30 are indicated by gray solid lines.
Here, it was assumed that the perforated film had two rows of holes. Corresponding to this, two sets of height adjusting tail wheels 5, 5a, seeding machines 6, 6a, and hole detectors 10, 10a are prepared. For example, radish has a wide interval between rows (called strips), but carrots are as narrow as about 8 cm. These devices are mounted on the work machine 30 according to the number of strips.

  In the central portion of the work machine 30, there are provided a film roller 11 in which a perforated film is rolled, and a pressure reducing roller 7 that presses the flat to make it flat. At the end, film press wheels 8, 8a and film fixed earthing disks 9, 9a are provided on both the left and right sides. 1 to 4 are side views as viewed from the left side of FIG.

  The multi-function machine seeder multi 200 has a four-joint link mechanism on both the left and right sides. The four nodes are the four nodes 41, 42, 43, and 44 or the nodes 41a, 42a, 43a, and 44a. The nodes 41 and 42 or the nodes 41 a and 42 a are fixed nodes connected to the overhanging frame 12. The nodes 41 and 42 or the nodes 41a and 42a rotate but do not move back and forth. The section portion is indicated by two arrows.

  The frames constituting the four-bar linkage mechanism are the first frame 31, the base frame 15, and the second frame 32 on the left end side. If it says on the right end side, it will be three, the 1st frame 31a, the base frame 15, and the 2nd frame 32a. The first frames 31, 31 a have shapes that are curved in accordance with the outer shape of the seam forming plate 4. In addition, a space is provided between the first frames 31 and 31a so as not to hit the engine of the tiller 20 when the link mechanism rotates. Thereby, the working machine 30 can be moved above the tilling rotary 3 of the tiller 20. When the work machine 30 is folded, the work machine 30 is turned to the cultivator 20 side while standing on either the left or right side of the work machine 30 and holding the base frame 15 and lifting the work machine 30 upward.

  Various devices mounted on the work machine 30 are mounted on the base frame 15. The base frame 15 has a structure in which the horizontal frame on which the seeding machines 6 and 6a are mounted and the horizontal frame having the nodes 42 and 42a are connected to the vertical frame extending in the front-rear direction at the left and right ends of the combined work machine seeder multi 200. It has become. The height adjusting tail wheels 5 and 5a are attached to the horizontal frame having the nodes 43 and 43a at the bottom of the overhanging frame 12, and become the rear wheels of the combined work machine seeder multi 200 when folded.

  The film presser wheels 8 and 8a and the film fixed earthing disks 9 and 9a at the rear left and right ends of the multi-function machine cedar multi 200 are connected by brackets 34 and 34a, respectively. Nodes 46 and 46a are provided at the center of the brackets 34 and 34a, and the connecting rods 33 and 33a are connected. The other ends of the connecting rods 33 and 33a are connected to the base frame 15 via nodes 45 and 45a. The film presser wheels 8 and 8a and the film fixed earthing disks 9 and 9a can be flipped upward by a spring of a flip-up mechanism (not shown in FIG. 5, see FIG. 1).

  Multi-function machine Cedar Multi, which can be covered with perforated film, including field cultivation, sowing, covering soil, and suppression, is used for various crops such as radish, carrot, sweet potato, and potato. The producer farms shift these series of work every day according to the quantity shipped every day. Therefore, now that the number of single-person work is increasing, reducing the weight of the multi-task machine, making it lighter and cheaper to meet the demands of producers.

  The present invention folds the agricultural combined work machine into a plurality of stages, and thus is not limited to the combined work machine seeder multi shown in the embodiment, and can be applied to various agricultural working machines.

It is a side view of the multi-function machine seeder multi according to the present invention. (Example 1) FIG. 2 is a side view of the combined work machine seeder multi shown in FIG. 1 when the presser wheel and the earthen disc are flipped up by a first folding mechanism. It is a side view of the combined working machine seeder multi of FIG. 1, and is a side view when the entire working machine is folded to the rear upper part of the tiller by a second folding mechanism. It is a side view of the combined working machine seeder multi of FIG. 1, and is a side view when the tilling rotary side is lifted in a folded state. It is a perspective view which shows the frame structure of the multi-tasking machine cedar multi of FIG. It is a side view of the conventional multi-function machine seeder multi.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Balance weight 2 Wheel 3 Tillage rotary 4 Ue forming board 5, 5a Height adjustment tail wheel 6, 6a Seeding machine 7 Pressure roller 8, 8a Film presser wheel 9, 9a Film fixed earthing disk 10, 10a Hole detector 11 Film roll 12 Overhang frame 13 Engine 14 Battery 15 Base frame 16 Rack 17 Perforated film 18 Handle 19, 19a Grooving plate 20 Tiller 30 Working machine 31, 31a First frame 32, 32a Second frame 33, 33a Connecting rod 34 34a Bracket 41, 42, 43, 44 Link mechanism node (left side)
41a, 42a, 43a, 44a Linkage node (right side)
Sections 45 and 46 (left side)
Sections 45a and 46a (right side)
47 Spring of spring mechanism 100, 200 Combined work machine seeder multi

Claims (1)

In a combined work machine where a work machine is attached to the back of a field cultivator with a field rotary, and performs a series of operations such as field cultivation, corn formation, sowing and covering, covering and fixing perforated film, and suppression.
A bracket that connects the presser wheel that holds the perforated film against the ground and a grounding disc, a connecting rod that is connected to the base frame of the working machine with a central portion of the bracket as a node, and one end of the connecting rod A first folding mechanism provided with a flip-up mechanism, wherein the presser wheel and the earthing disc are flipped up in a substantially right angle direction from a horizontal position in contact with the ground surface;
At the left and right ends of the working machine, there is provided a four-joint link mechanism having two fixed joints on the extension frame of the tiller, and the working machine as a whole comes into contact with the ground surface behind the tiller. An agricultural combined work machine, wherein a second folding mechanism that is rotated while maintaining a vertical relationship is provided on an upper part of a tilling rotary of the tiller.

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