JPH041794Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a soil covering device in a multi-film laying device.

The tilled soil plowed by a rotary tiller is formed into multiple ridges using a ridge tool, a mulch film is laid on these ridges, and the tilled soil is lifted up at the soil lifting section and placed near the ridges and furrows. The structure is such that the soil is covered with a soil distribution chute, and in order to cope with changes in the spacing of the furrows when the ridges are formed wide or narrow depending on the type of crop, an auxiliary structure is installed at the bottom of the soil distribution chute. The applicant has made a proposal in Japanese Patent Application No. 58-212121 in which the chute is attached so that its mounting position can be adjusted so that the soil distribution and discharge position of the auxiliary chute can be changed. However, in this device, the auxiliary chute is set with a long protrusion from the soil distribution chute, so there is a risk that the lower part of the auxiliary chute may come into contact with the ridge.

Therefore, a technical problem arises that must be solved in order to prevent the above-mentioned danger, and the present invention was proposed with the aim of solving this problem. A mulch film is laid in the furrow, and the lifted soil is lifted up into a hopper by the soil lifting section, and the soil is distributed near the furrow by multiple earth distribution chute whose lower parts are opened to the left and right of each other. In the soil covering device configured to cover the multi-film with soil, the upper part of the central soil distribution chute is fixed to the chute mounting part, and the soil distribution chute on the left and right sides are fixed to the lower part of the soil distribution chute. An angle adjustment mechanism is provided in the chute attachment part so that the distance between the central part and the lower part of the earth distribution chute can be adjusted wide or narrow, and the upper parts of the left and right earth distribution chute are attached thereto. The present invention aims to provide a soil covering device for a multi-film laying device.

With this configuration, this invention was able to obtain the following technical effects. That is, the upper parts 23a, 24 of all the distribution chute 23, 24...
By integrally changing the mounting position of a to the left and right with respect to the device frame 6, the predetermined ridges and grooves can be covered with soil in any stroke of reciprocating the multi-film laying device. Shoot 2
By changing the installation angles of the necessary items 3, 24... to the equipment frame 6 independently from each other, the discharge position of the covering soil discharged from the respective soil distribution chute 23, 24... can be adjusted in the left-right direction. This makes it possible to adjust the width of the ridges, making it possible to handle ridges with different spacings, ie, wide ridge widths and narrow ridge widths. And distribution shots 23, 24
The discharging position of the covering soil is adjusted by changing the mounting angle of the necessary items on the equipment frame 6. Therefore, like the previously proposed equipment mentioned above, it is set so as to protrude long from the earth distribution chute. This invention eliminates the risk of the auxiliary chute contacting the ridges and damaging them.

Next, to explain one embodiment of this invention, as shown in a side view in FIG. 1 and a rear view in FIG. Connect the hit part 5 of the connecting rod 4 of the rotary tilling device 3 so that Front and rear holder plates 9,
10 connected by a holder 11 having a rectangular frame shape in plan view, the front part of the main link 12 is pivoted to the base plate 8 using a fulcrum pin 13, and the main link 12
The rotating tip of the link 15, which is pivotally connected to the rear part of the link 15 on the vertical axis 14, and the side end of the base plate 8 are connected by the sub-link 16 using pins 17 and 18, thereby forming the main link 12 and the sub-link. 16, base plate 8,
A parallel link mechanism 19 consisting of links 15 is constructed, and a base plate 8 is connected around a fulcrum pin 13.
, the center pin hole 8a and the left and right pin holes 8d, 8c.
and pin holes 8d and 8e for adjusting the mounting position are both provided on a concentric circle, and a pin hole 9a provided in the holder plate 9.
By aligning the pin hole 8a of the base plate 8 with the pin hole 8a and inserting the pin 20, the parallel link mechanism 19 is fixed at the center position in the left-right direction of the rotary tiller 3, as shown in a plan view of the main part in FIG. Therefore, when the pin 20 is inserted into the left and right pin holes 8b and 8c, for example, the left and right pin holes 8b and 9a, as shown in FIG. 4, the rear part of the parallel link mechanism 19 is swung to the left. It is configured to be fixed in the fixed position. Next, an embodiment of the structure in which the soil lifting section 21, the film laying section 22, and the soil distribution chute 23, 24, and 25 are attached to the respective positions of this parallel link mechanism 19 will be explained. if,
The soil lifting section 21 is constructed by inserting frames 28 and 28 on which pulleys 26 and 27 are mounted above and below into the holder 11 and attaching them to the holder 11, and attaching a belt 30 with lugs 29... or buckets to the pulleys. 26, 27
The belt 30 is rotated by the arrow shown in FIG. A plurality of furrow tools 33, 33, which rotate in the linear direction and are located behind the tiller 32,
The cultivated soil is scraped onto the belt 30 by the lugs 29 from the lower part of the soil lifting part 21 which is visible near the front of the ridge forming part 33a of the ridge forming part 33 (center left and right in the illustrated example) of No. 1. The lifted soil is lifted up and discharged to a guide cover 34 near the upper pulley 26, and the discharged lifted soil is guided to a popper 35 by the guide cover 34.

In the illustrated example, the soil lifting section 21 and the ridge raising device 33 are mounted on a vertical rod 35 fixed to the frame 7, and are mounted on a horizontal rod 3 fixed to the lower part of the vertical rod 35.
A rolling wheel 37 that rolls on the furrow groove B is mounted on the shaft 6, and the ridge standers 33, 33... are attached to the horizontal rods 36 so as to be adjustable in left and right positions, and the arm 38 is moved forward to the ridge stander 33 in the center of the left and right sides. By extension, the frames 28, 28 of the earth lifting section 21
A rotation center shaft 40 is provided in the left and right center portions of the bracket 39 attached to the lower part of the arm 38 so as to be aligned substantially directly under the fulcrum pin 13, and the rotation center shaft 40 is fitted into a bearing portion 41 provided on the arm 38. Since it matches,
When the parallel link mechanism 19 is rotated as described above, the belt 30 of the soil lifting section 21 rotates around the rotation center axis 40.
The upper part is then swung leftward or rightward about the center, and the conveyance surface is configured so as not to be reversed.

The hopper 35 is attached to the upper part of the vertical shaft 14, and this vertical shaft 14 is fixed to the link 15, and the mounting rod 53 is fixed to the lower part thereof. Upper part 23a, 24a,
25a, upper part 23a, 24a, 25a
The necessary items are mounted independently from each other on a chute mounting plate 42 that is integrated with the hopper 35 so that the mounting angle can be changed. That is, as shown in FIGS. 6 to 10, arcuate grooves 43a, 43b, 44a, 44 are formed on the left and right sides of the chute mounting plate 42, respectively.
b, and bolts 45, 45 fixed to the upper parts 23a, 25a of the left and right distribution chute 23 and 25...
, the respective arcuate grooves 43a, 43b or 44a, 4
4b, rotate the soil distribution chute 23, 25 in the left and right direction along the arcuate grooves 43a, 43, or 44a, 44b, and tighten the nuts 46 screwed into the respective bolts 45. Upper part 23
a, 25a are fixed to the chute mounting plate 42 at the respective rotational positions described above. In this way, the upper part 2 of the distribution chute 23, 25
3a, 25a are the circular arc grooves 43a, 43b, 44
a, 44b, so that the earth distribution chute 23, 25 connects the arcuate grooves 43a, 43b, 44a, 44b with the longitudinal direction provided in the machine frame 6. This made it possible to change the angle of the axis in the left and right directions. Therefore,
When the basic ridge width is A, the upper parts 23a and 25 of the left and right distribution chute 23 and 25 are
Move a to the outside in the left and right direction and release chute 2.
The soil distribution chute 23, 25 is fixed in a position where the lower part of the soil distribution chute 3, 25 looks almost above the ridge B, and in the case of a wide ridge as shown in Fig. 5, the left and right soil distribution chute 23, 25, each upper part 23a, 25a
move inward in the left and right direction to the distribution chute 23,
25 is fixed at a position where the lower part thereof extends substantially above the ridge.

In the illustrated example, the upper part 2 of the earth distribution chute 23, 25
3a, 25a and the insertion hole of the hopper 35 are closed with flexible covers 47, 47.

The film laying section 22 supports a film roll 49 on a roll holder 48 attached to a mounting rod 53, supports compression wheels 51 on a compression wheel holder 50 attached to the attachment rod 42, and is pulled out from the film roll 49. The multi-film C is separated into the ridges A, A... and the ridges B, B by the pressing wheel 51 that rolls along the ridges and grooves B.
It is to be installed on... Further, an appropriate shutter may be provided in the hopper 35 or at the lower end of the earth distribution chute 23, 24, 25 so that the soil is covered in a lump shape.

When the film laying work is carried out by proceeding in the direction of the arrow in FIG. The ridge erector 3 is moved so that the left wheel of the machine 1 is located in front of the ridge erecter 33 at the leftmost end, and the right wheel is located in front of the ridge erector 33 at the rightmost end.
3, and then swing the parallel link mechanism 19 to the left and insert the pins 20 into the pin holes 8b and 9a.
Bo, half-ridge Ao′, and half-ridge formed in this process
The film laying part 22 is located so as to cover A' and the ridge A, and the ridges B and B on its left and right sides, and the soil distribution parts 23, 24, and 25 are located above the ridge Bo and the ridges B and B. Then, the cultivated soil near the front of the furrow B before the film is laid is moved to the lug 2 of the soil removal section 21.
9, 29... to scoop up soil and distribute it to parts 23, 2.
Starting from 4 and 25, the ridges Bo, B, and B will be covered with soil D, respectively.

In order to perform the return stroke in the opposite direction to that shown in FIG. Match this and pin 20
4, the film is laid in the half ridges Ao', A, ridge A and the ridges Bo, B, B, as in the case of FIG. 4 described above. In order to maintain the left and right balance when driving on the road, etc., as shown in Fig.
3 is set in the center. Note that a soil lifting spiral may be used as the soil lifting section 21. Reference numeral 52 is a rear wheel of the traction machine 1.

As mentioned above, among the crops that require covering with mulch film, there are those with narrow ridges, such as lettuce, and those with wide ridges, such as Chinese cabbage. However, even if such wide and narrow ridge widths are required, this method does not have an auxiliary chute at the lower end of the soil distribution chute as in the conventional method, so there is no risk of the auxiliary chute coming into contact with the ridge. The spacing between soil distribution chute can be arbitrarily set to the width of the ridge to suit the variety of crops. At this time, the upper part of the soil distribution chute at the center is fixed to the chute attachment part, and the distance between the left and right soil distribution chute with respect to the central fixed chute can be adjusted, so that the soil distribution chute at the center can be adjusted. Using the chute as a reference, the mutual spacing can be adjusted by adjusting only the left and right soil distribution chute, and therefore, the adjustment operation is simple, and the film laying and soil covering can be performed extremely smoothly.

[Brief explanation of the drawing]

The figures show one embodiment of this invention; Fig. 1 is an overall side view, Fig. 2 is a rear view of the main part, and Fig. 3 is a rear view of the main part.
Figures 4 and 5 are plan views of the main parts in their respective states, Figure 6 is a rear view of the earth distribution chute, Figure 7 is an enlarged view of the main parts of Figure 6, and Figure 8 is the view of Figure 7. side view,
FIG. 9 is a front view of the chute mounting body, and FIG. 10 is a side view of FIG. 9. Explanation of symbols, 6...Equipment machine frame, 21...Earth lifting part,
23, 24, 25... Distribution chute, 23a, 2
4a, 25a...Top, 35...Hoppa, A,
Ao, ... ridge, B, Bo, ... furrow, C, Co...
...Multi film.

Claims (1)

[Scope of utility model registration request] Multi-film is laid in the multiple ridges and furrows to be formed, and the soil is lifted up into a hopper by the soil lifting section, and the soil is distributed into multiple soil distribution chute whose lower parts are open to the left and right of each other. In the soil covering device configured to cover the multi-film near the ridges and grooves, the upper part of the central part of the soil distribution chute is fixed to the chute attachment part, and the upper part of the soil distribution chute on the left and right sides is The earth distribution chute is provided with an angle adjustment mechanism on the chute mounting part so that the distance between the lower part of the earth distribution chute in the center part and the lower part of the earth distribution chute can be adjusted wide or narrow, and the upper part of the left and right earth distribution chute is attached here. A soil covering device in a multi-film laying device, characterized in that it is attached to the multi-film laying device.