JPH0433734Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention performs rotary tilling of the field and shapes the ridges, and then covers the shaped ridges and ridges with a mulch film and covers the ridges with mulch. The present invention relates to a ridge shaping device for a working machine that covers soil with a film.

Conventional technology Conventionally, there have been working machines that perform rotary tillage of a field, shaping of ridges, and covering the shaped ridges and furrows with a mulch film in one continuous stroke. Publication No. 62-5565, Utility Model No. 61-
Some of these are described in Japanese Utility Model Publication No. 115049, Japanese Utility Model Application Publication No. 61-136857, etc. In addition, in this type of work machine, a part of the rotary tilled soil is once lifted up by a soil lifting device, and the lifted soil is intermittently dropped onto a mulch film covering the ridges. We are fixing the soil with mulch film. Furthermore, as described in Japanese Utility Model Application No. 61-115049, Japanese Utility Model Application No. 61-136857, etc., an earth-filling body is provided which moves in the ridges before being covered with the multi-film, and this earth-harvesting body It is also possible to scoop up the soil at the bottom of the furrow and move it forward, and to intermittently raise the soil filler, leaving the soil that was being moved in a mound, forming convex portions at predetermined intervals at the bottom of the furrow. It is being done. By forming such convex portions, the mulch film covering the ridges becomes uneven, preventing soil for covering the soil from being washed away by rainwater, etc., and also allows rainwater to collect on the mulch film. The water supply to the crops is improved by allowing this collected rainwater to permeate into the field through the small holes formed in the mulch film and the overlapping parts of the mulch film.

Problems to be Solved by the Invention A plurality of ridges formed by the ridge shaper and the furrow grooves between the ridges are shaped to the same height and depth. Therefore, in the furrow in which the earth-filling body advances, the bottom surface of the furrow is dug down by the earth-filling body, and eventually deep furrows and shallow furrows are formed. As a result, the sunlight exposure to each row will be different, and the heat retention state of each row will be different, leading to variations in crop growth. This makes it difficult to disinfect, harvest, etc. at the most appropriate time depending on the growth state. In addition, it is common for workers to perform various tasks such as planting, disinfecting, and harvesting crops while walking in the ridges, but if the depths of the ridges are different, it becomes difficult to perform the work, which reduces work efficiency. decreases.

Means for Solving the Problems A rotary tiller, a pair of left and right ridge shapers each having a pair of left and right shaping plates, and a multi-film covering section that covers the ridges and ridge grooves shaped by these ridge shapers with a multi-film film. A working machine having a soil covering part for covering a part of the rotary tilled soil on the multi-film covering the ridges and grooves is connected to the rear of the mobile agricultural machine, and a working machine is connected to the rear part of the mobile agricultural machine, and a part of the rotary tilled soil is placed on the outside of the shaping plate located on the outside of the ridge shaping device. A soil collapsing body is provided that advances while scooping up the soil at the bottom of the ridge and rises at a predetermined timing. The lower end edge of one of the shaping plates adjacent to the earthing body is set at a higher position than the lower edge of the other shaping plate.

Action When shaping ridges and furrows with a ridge shaping device,
The ridges on the shaping plate side with a high lower edge are shaped to be shallow. Next, the earth filler moves through the shallowly shaped ridges and scoops up the soil at the bottom of the ridges, so that the depth of each ridge is eventually made substantially constant.

Embodiment An embodiment of this invention will be described based on the drawings. A tractor 1, which is a mobile agricultural machine, is supported at the rear by a two-point hitch 2 and has a lift arm 3.
A working machine 4 that is raised and lowered by the above is connected to the working machine 4. This working machine 4 is first provided with a rotary tilling section 5 located at the forefront and rotated by the driving force from the tractor 1, and above the rotary tilling section 5 is an adjustment frame 6 extending in the front-rear direction. is provided. A mounting bracket 7 is provided at the rear of the adjustment frame 6.
A substantially T-shaped tool bar 8 is attached to the mounting bracket 7 so that its position can be freely adjusted in the vertical direction and in the longitudinal direction. and,
A horizontal bar portion of the tool bar 8 having an axis extending horizontally in the left-right direction perpendicular to the direction of movement of the working machine 4 includes a pair of left and right ridge shapers 9 and an upper surface portion of the ridge shaped by these ridge shapers 9. A pressure roller 10 is attached to suppress the pressure. The ridge shaper 9 is constituted by a pair of left and right shaping plates 11 and 12 whose positions can be adjusted in the left and right directions, respectively. The vertical width dimensions of these shaping plates 11 and 12 are set to be different, and the upper edges of the shaping plates 11 and 12 are set to be located at the same height, and the lower edge of the outer shaping plate 11 The edge is set to be located at a higher position than the lower edge of the inner shaping plate 12.

Next, the working machine 4 includes a soil lifting belt 13 that is driven by the driving force from the rotary tilling section 5 and lifts a part of the soil tilled by the rotary tilling section 5 upward; A hopper 14 that stores the soil lifted by the soil lifting belt 13
A soil covering section 17 is provided, which includes three shutters 16 and the like, which are provided facing the soil discharge port 15 formed on the bottom surface of the hopper 14. The soil covering portion 17 is provided so as to be swingable in the left and right directions and to be fixed at any position using the vertical bar portion of the tool bar 8 as a fulcrum. Further, a stay 19 extending rearward is fixed to the pillar 18 of the soil covering part 17, and the stay 19 includes a support rod 21 that supports the multi-film 20 wound into a roll, and the ridge shaper 9. A multi-film covering section 23 is provided, which includes three pressing wheels 22 and the like, which press the multi-film 20 covering the shaped ridges and ridge grooves in the ridge grooves.

A stay 25 is attached to the hopper 14 and is rotatable around a fulcrum 24.
A shutter 26 for opening and closing the soil discharge port 15 is fixed to the lower end of the soil discharge port 5. Furthermore, one end of a spring 27 that urges the shutter 26 in the closing direction is locked to the stay 25. A lever 29 is attached to the hopper 14 and is rotatable about a fulcrum 28. The shutter 26 is connected to one end of the lever 29 via a chain 30, and the other end of the lever 29 is connected to the shutter 26 via a chain 30. One end of an inner wire 32 inserted into the outer wire 31 is connected. Note that the hopper 14
A wire receiver 33 for fixing one end of the outer wire 31 is fixed to.

Next, a pin 34 is fixed to the outer surface of the ridge shaping plate 11 with its axis oriented horizontally in the left and right direction,
A stay 35 is attached to the pin 34 so as to be rotatable about the axis of the pin 34, and a wire receiving suite 36 is fixed thereto. The stay 35
A bulging plate 37, which is a mulching body, is fixed to the tip of the holder, and a spring 38 is stretched between the stay 35 and the wire receiving stay 36 to bias the mulching plate 37 downward. Furthermore, the stay 35
One end of the inner wire 40 inserted into the outer wire 39 is connected to the outer wire 39 .
A wire receiver 41 for fixing one end of the wire receiver stay 36 is fixed to the wire receiver stay 36.

Next, a holding fitting 44 is fixed to the axle case 42 of the tractor 1 with bolts 43. A stay 47 that connects one end of an inner wire 46 inserted into an outer wire 45 is fixed to this holding metal fitting 44, and a lever 48 is also connected to the retainer 44 so as to be freely rotatable about a pin 49 as a fulcrum. A guide plate 50 and a wire receiver 51 for fixing one end of the outer wire 45 are fixed to the lever 48, and the tip of the lever 48 and the lift arm 3 are fixed to the lever 48.
A chain spring 52 is connected between.
Further, the disc 54 of the wheel 53 of the tractor 1
A plurality of protrusions 56 are fixed by nuts 57 at predetermined equal intervals on a concentric circle centered on the axle 55.

Here, the other end of the outer wire 45, the other end of the outer wire 39, and the other end of the outer wire 31 are each fixed to a wire branch portion 58,
Further, at this wire branch portion 58, the other end of the inner wire 46, the other end of the inner wire 40, and the other end of the inner wire 32 are branched and connected.

In such a configuration, when the tractor 1 connected to the working machine 4 is driven, the rotary tiller 5 is rotated by the driving force from the tractor 1 and the field is tilled, and the ridge shaper 9 is used to form two ridges and between the furrows. The ridges and grooves on the outside of the ridges are shaped, and the shaped ridges and ridges are covered with the multi-film 20. Further, a part of the tilled soil is lifted up by the lifting belt 13 and stored in the hopper 14, and furthermore, the treading wheel 22 advances in the ridge while pressing down on the covered multi-film 20. On the other hand, the soil plate 37, which is urged downward by the spring 38, sticks its tip into the bottom of the ridge before being covered with the multi-film 20, and moves forward while scooping up the soil on the bottom of the ridge.

Next, as the wheels 53 of the tractor 1 rotate, the protrusion 56 hits the guide plate 50 at a predetermined timing, and the lever 48 rotates upward (in the direction of arrow A) about the pin 49 as a fulcrum. As a result, the distance between the stay 47 and the wire receiver 51 increases, and the inner wire 46 is relatively stretched in the direction of the arrow a. Then, the inner wire 32 is pulled in the direction of arrow B, the lever 29 rotates around the fulcrum 28 in the direction of arrow B, the soil discharge port 15 is opened, and the soil stored in the hopper 14 is discharged from the shooter 1.
Multi-film 2 guided by 6 to cover the ridges and grooves
Fall onto 0. At the same time, the inner wire 4
0 is pulled in the direction of arrow c, the stay 35 rotates upward around the axis of the pin 34, and the groin plate 37 separates from the ground. Therefore, the movement of the soil that had been scooped up and moved forward by the mulch plate 37 is stopped, and the soil that had been scooped up and moved by the mulch plate 37 is left in a heaped shape on the bottom of the ridge, creating a convex shape. Section C is formed. Note that the opening of the soil discharge port 15 and the separation of the earthen plate 37 from the ground are performed multiple times in accordance with the number of protrusions 56 per rotation of the wheel 53.
Soil is intermittently dropped from the hopper 14 onto the mulch film 20 covering the ridges to cover the mulch film 20, and convex portions C are intermittently formed at predetermined intervals on the bottom of the ridges. Ru.

Here, in one working stroke of the working machine 4, two ridges A ₁ , A ₂ and three ridges a ₁ , a ₂ , a ₃ are shaped as shown in FIG. Since the lower edge of the shaping plate 11 is located at a higher position than the lower edge of the shaping plate 12, the ridges a ₁ and a ₃ are similar to the other ridges a ₂
Shaped more shallowly. However, the earth bulging board 37 is located within the ridges a ₁ and a ₃ , and this earth bulging board 37
By scooping up the soil at the bottom of a ₁ and a ₃ , the bottoms of the furrows a ₁ and a ₃ are dug, and finally the depth of each furrow a ₁ , a ₂ , and a ₃ is As shown in Figure 6, they are approximately equal. Furthermore, on the bottom surfaces of the ridges a ₁ and a ₃ , convex portions C are formed intermittently at predetermined intervals by soil that is left in a mound after stopping movement when the earth mooring plate 37 rotates upward. has been done.

Next, during work, the soil covering part 17 is rotated to the left or right and fixed at a position eccentric to the ridge side shaped in the previous work process. In addition, in the previous work process, two ridges were created as shown in Figure 7.
B ₁ , B ₂ and three ridges b ₁ , b ₂ , b ₃ are shaped. Here, the multi-film covering part 23 rotates integrally with the soil covering part 17 and is located on the side of the ridge shaped in the previous working process. For this reason, the ridge A ₁ ,
In the work process of shaping A ₂ , the ridge A ₂ , the ridge B ₁ that was shaped in the previous work process, and the ridge grooves a ₂ , a ₃ , b ₁ ,
b ₂ is coated with multi-film 20. Further, one side of the multi-film 20 is overlapped with one side of the multi-film 20 covered in the previous working process within the ridge _b2 .

Note that the ridges a ₂ in the multi-film 20,
Soil guided by the shooter 16 is intermittently dropped onto the area covering a ₃ , b ₁ , and b ₂ , and the multi-film 2
0 soil covering is performed. Furthermore, regarding the ridges b ₂ and a ₂ in which no convex portions are formed by the earthen board 37,
In these ridges b ₂ and a ₂ , multi-film 2
The mulch film 20 is overlaid from above the covering soil that has been dropped onto the mulch film 20 covered in the previous work process. Therefore, the part of the multi-film 20 that covers the ridges b ₂ and a ₂ also covers the other ridges a ₃ , b ₁ ,
Like the multi-film 19 covering b ₃ , it has an uneven shape, which prevents the soil for covering from being washed away by rainwater, etc., and also dams up rainwater and forms this rainwater in the multi-film 20 in advance. The growth of crops is improved by allowing the water to permeate into the field through the drainage holes and the overlapping parts of the mulch films 20.

Effects of the invention As mentioned above, this invention is achieved by locating the lower edge of one of the shaping plates adjacent to the groin plate in the ridge shaping device at a higher position than the lower edge of the other shaping plate that is not adjacent to the groin plate. When shaping the ridges and furrows using a ridge shaper, the ridges on the shaping plate side adjacent to the mulch body are shaped shallowly, and the mulch body is advanced while scooping up the soil at the bottom of the shallowly shaped ridge grooves. Therefore, it is possible to finally make the depth of all the furrows approximately constant, which makes the sunlight exposure to each row constant and the heat retention state of each row uniform, allowing crops to grow uniformly. Therefore, it is possible to increase the yield by carrying out disinfection and harvesting at the most suitable time, and since the depth of each furrow is approximately constant, it is easier to transplant and harvest seedlings. This has the effect of making it easier for workers to walk within the ridges and improving the efficiency of various tasks.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a side view, Figure 2 is a rear view showing a part of the tractor wheel in cross section, Figure 3 is a side view showing the state in which the shutter is opened and the groin plate is rotated upward, and Figure 4 is A perspective view showing the working state, FIG. 5 is an explanatory diagram showing the state of shaping the ridges and furrows by the ridge shaper, and FIG. 6 is an explanatory diagram showing the state in which the depth of each ridge is made approximately constant by the earthing board. 7 are explanatory diagrams showing the ridge shaping state and the multi-film covering state. 1...Tractor (mobile agricultural machine), 4...Work machine,
5... rotary tiller, 9... ridge shaper, 11,
12... Shaping plate, 17... Soil covering part, 20... Multi-film, 23... Multi-film covering part, 3
7...Earth board (earth board).

Claims (1)

[Scope of utility model registration request] A rotary tiller, a pair of left and right ridge shapers each having a pair of left and right shaping plates, a multi-film covering section that covers the ridges and furrows shaped by these ridge shapers with a multi-film film, and a portion of rotary tilled soil. A working machine having a soil covering part for covering soil on the mulch film that covers the ridges and grooves is connected to the rear of the mobile agricultural machine, and the soil on the bottom of the ridges is placed on the outside of the shaping plate located on the outside of the ridge shaping device. A mulching body is provided that moves while scooping up the earth and rises at a predetermined timing, and the lower end edge of one of the shaping plates adjacent to the mulching body is set at a higher position than the lower edge of the other shaping plate. A ridge shaping device.