JPH07143826A - Press roller for mulch transplanter - Google Patents

Abstract

PURPOSE:To improve adhesiveness and fitness of a mulch sheet of a mulch planting machine during laying. CONSTITUTION:A roll-shaped sheet 16 capable of feeding is mounted on the rear part of a running machine body. On laying the sheet 16 by rolling out, a roller 38 which rotatably contact on the end of the sheet 16 is made to the roller 38 having a circular truncated W9 conical taper. Further claw 43 which makes a hole on an adjacent superposed end of the sheet 16 around the surface of the roller 38 is projectingly provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressing roller for a multi-transplanter.

[0002]

2. Description of the Related Art Conventionally, in the field of fresh vegetable cultivation (field cultivation) such as lettuce, Chinese cabbage, cabbage, etc., the heat retention of the field is improved to improve seed germination and survival, as well as to prevent soil from jumping up during rainfall. In order to prevent the generation of weeds, mulch cultivation in which the soil surface is covered with a sheet such as a vinyl film is widely used (Japanese Utility Model Publication No. 63-4661, etc.).

Also in the field of rice cultivation, by taking out only the seedlings and covering the rice field with a sheet similar to the above,
The multi-paddy rice cultivation method has been attracting attention because it can prevent the growth of weeds, solve the problem of environmental pollution by herbicides, and simplify the cultivation management and labor saving after planting.

Various types of transplanters for multi-cultivation (multi-transplanters) have been proposed in the past (Japanese Utility Model Publication No. 62-21844 and Japanese Utility Model Publication 63-46).
No. 11, gazette No. 2-44920, gazette No. 2-
44924, etc.). Generally, the transplanting method using such a multi-transplanter is such that the planting portion is connected to the rear of the traveling machine body so that the planting portion can be moved up and down, and the roll-shaped sheet member horizontally stretched on the roll supporting portion is sequentially fed out to the rear. The seedlings are planted from above the sheet member covered by the planting rod while covering the above. Then, the present applicant has proposed a device shown in Japanese Patent Application No. 4-319402 and the drawings as a device for performing the above multi-transplantation.

[0005]

In the case of multi-transplantation of rice action, the sheet fed out from the transplanting machine is stretched and brought into close contact with the transplanted field and then planted. After planting, the sheet is sufficiently fixed in the field scene. If the fixation is poor, the sheet will be dragged as the aircraft travels, causing problems such as extraction and lodging of planted seedlings and the seedling itself being covered by the sheet. There was a problem that due to the influence of water and water, the edge was turned over, the soil was exposed, and weeds were generated in that area.

[0006]

A first feature of the present invention for solving the above-mentioned problems is to connect a planting work machine 9 to the rear of the traveling machine body 1 and run the machine body on the planting work machine 9 side. A roll-shaped sheet 16 that is fed out in accordance with the above, and a pressing roller 38 that presses the end portion of the sheet 16 against the surface of the field 42 are provided. The pressing roller 38 is tapered into a truncated cone shape whose outer end side has a large diameter. It is characterized by being attached with. A second feature of the present invention is to connect a planting work machine 9 to the rear of the traveling machine body 1 and to provide a roll-shaped sheet 16 that is fed to the planting work machine 9 side as the machine body travels, and the sheet 16 Roller 3 for pressing the end of the pad against the field 42 surface
8 is provided with a claw 43 projecting on the outer periphery of the pressing roller 38, which has a hole 44 for bringing the sheet 16 into close contact with the surface of the field 42 when the roller 38 rolls on the sheet 16. is there.

[0007]

The roll-shaped sheet 16 is sequentially unrolled and extended while the unrolling end is fixed to the surface of the field 42 as the transplanter runs, and transplanting is performed from the laid sheet 16. When the sheet 16 is laid, the pressing roller 38 having a truncated cone taper presses the sheet end by rolling contact, so that the pressing of the sheet end to the field becomes reliable, and the adhesion and the fixing property of the sheet 16 are improved. Also, the sheet 16 is not turned over after planting.

Further, in the case where the pressing roller 38 is provided with the claw 43 in a protruding manner, the claw 43 is provided at the sheet end in the hole 4 in the pressing direction.
4, the outer peripheral edge 16b of the hole 44 is formed in the field 4
No. 2 is pushed into the soil to increase the fixing property of the sheet 16 and the water in the paddy field seeps out from the hole 44 on the sheet surface, preventing the occurrence of air trap inside and adhering the sheet to the field. Also, both the fixing property is increased.

[0009]

1 and 2 are an overall side view and a plan view of a multi-transplanter (rice transplanter) according to the present invention, in which a traveling machine body 1 is supported by front and rear wheels 2 and 3, and on a machine body frame 4 thereof. A bonnet 6 and a driver's seat 7 are mounted, and a planting work machine 9 is attached to the rear of the machine body via an elevating link 8 so as to be able to move up and down and roll freely. A rack shape for stocking replenishment seedlings is formed on both left and right sides of the bonnet 6. An auxiliary seedling stand 11 is installed.

On the working machine 9, the seedling stand 1 with the upper end tilted forward
2 is obliquely installed, and a known planting rod 1 for scraping and transplanting mat seedlings at the lower end of the back surface of the seedling stand 12 while the aircraft is running
3 is a planter case 30 that constitutes a working machine frame
It is attached to the bottom surface of the working machine 9 to follow the field scene during traveling of the machine body and sense the rolling contact pressure or height to control the rocking of the lifting link 8 to keep the working machine 9 at a predetermined height. The sensor roller 14 consisting of two long rollers before and after being horizontally supported is horizontally supported by the equalizer arm 15, and
At the front upper position of the sensor roller 14, there is provided a cylindrical sheet case 17 in which a roller-shaped sheet 16 made of recycled paper such as corrugated cardboard is rotatably incorporated in the left-right direction. It is attached to form a frame. Reference numeral 18 denotes a stand that supports the work implement 9 when it is stored in a state where it is rotated clockwise and protrudes downward, and guards the work implement when facing backward.

Numeral 20 is a seat 1 supported laterally of the machine body
It is held by a supporting arm 25 and a spare roll supporting frame 31 which are horizontally rotatably supported on the rear side of the machine body 1 by the auxiliary rollers 6 and the supporting frame 3 at the time of replenishing the roll paper.
1 and the front end are pivoted from the side to the rear at the fulcrum 19 to move the preliminary roller 20 to the position of the sheet case 17 for insertion. A handle 32 having a gate shape in a side view is erected in the front-rear direction on a support frame 31 at a front side position of the driver's seat 7, and when the support frame 31 is rotated and an operator gets on and off by stepping on a step 34. Can be used as a handle. 33
Is a lock device that locks the front end of the support frame 31 to the machine body 1 side so as to be detachable.

A guide roller 29 for feeding the sheet is rotatably supported by the rear opening of the seat case 17 so that the sheet 16 can be moved by the sensor roller 14 as the machine runs.
The lower surface of the seat is pressed against the field scene while being unrolled rearward, and the rear end of the seat is laid in a strip shape while keeping the unrolling reaction force while contacting the field scene. Reference numeral 21 denotes a seat receiver provided with a plate-shaped guide 21b along the lower portion of a rod-shaped support 21a extending rearward from the lower position of the seat case 17 and for raising the body during traveling or non-working. In this state, the sheet feeding end is received.

Reference numeral 22 denotes a sheet cutter which is laterally provided at a rear position of the working machine 9 and is formed of a saw-toothed thin plate in a rear view, and both ends of the sheet cutter 2 are pivotally supported laterally to the working machine 2.
The operation wire 26 attached to the rear end of the driver 3 and pulled by the cutter operating lever 24 on the side of the driver's seat 7.
The rear end of the cutter arm 23 is oscillated up and down through the cutter 22, and the cutter 22 is driven down to the field scene, whereby the sheet 16 is cut at the sheet covering end position. Two
Reference numeral 8 is a sheet sensor attached to the opening of the seat case 17 and is in contact with the seat 16 to issue an alarm when the remaining amount of the seat 16 is exhausted and when the remaining amount of coal is exhausted.

Seat case 1 which constitutes a working machine frame
A bracket 36 is projectingly provided on the lower left and right ends of 7, and a single leveling roller 37, which is slightly shorter than the width of the seat 16 and larger than the left and right width of the rear wheel 3, is rotatably supported on the bracket. Therefore, when the working machine 9 is lowered and grounded to carry out the transplanting work, wheel traces and other irregularities in the laying field of the seat 16 are averaged. By this leveling work, the sheet 16 is laid in the field scene that is leveled and leveled more closely without forming air pockets, which makes the sensing of the rice field by the sensor roller 14 accurate and increases the planting depth. Be accurate.

Further, at the left and right ends of the lower rear part of the working machine 9, the seats 16 are provided along with the feeding of the seats during the transplanting work.
A pressing roller 38, which rolls so as to press both left and right ends of the same to the field scene, is pivotally supported by an arm 39 so as to be vertically adjustable. The pressing roller 38 surely presses the left and right ends of the sheet 16 fed out from the sheet case 17 onto the sheet receiver 21 as shown in FIG. 3, and the base end peripheral surface axially supported by the shaft 41 is flat. The roll portion 38a forms a taper portion 38b having a conical peripheral surface on the tip side (inside the machine body).

Incidentally, the conventional pressing roller 38 is a flat roller as shown in FIG. 5, so that the rear end portion of the sheet 16 becomes a hanging portion 16a due to water wetting or the like, and when the sheet 16 is set on the field 42, the hanging portion 16a. As a result, as shown by the imaginary line a in the figure, the feeding is carried out while being in contact with the inner surface of the pressing roller 38 so as to be folded and overlapped.
As a result, it was impossible to overlap the edges of adjacent sheets when laying the sheets, and there was exposure of the rice paddle at this portion, and the sheets were turned up.

On the other hand, according to the above-mentioned taper type pressing roller, the above-mentioned drawbacks are eliminated, and further, the pressing of the sheet end is performed in the middle-high direction, so that it becomes reliable.

FIG. 4 shows the flat roller portion 38a of the roller 38.
6A and 6B show a projecting claw 43 having a sharp tip on the outer periphery of the sheet, and when the roller 38 is brought into rolling contact with the overlapping end 16a of the sheet 16 during the transplanting operation, the results are shown in FIGS. As shown, the sheet 16 is pierced by the claws 43 and the holes 4
4 is bored, and the folded-back portion 16b is inserted into the field 42. As a result, the overlapping end 16a of the sheet 16 is fixed to the field scene, and the water in the field 42 permeates through the hole 44 to the upper surface side.

The claws 44 can be provided only on one side roller on the left and right ends, and the function is not limited to the taper roller shown in FIG.

[0020]

Since the pressing roller of the present invention is constructed as described above, when the pressing roller is formed with a taper, it is guided to the roll taper surface even when the sheet end fed from the roll-shaped sheet is bent and hung down. As a result, the edge of the sheet is securely pressed into the field, the degree of adhesion to the field is improved, and the soil is not exposed and the wind does not cause curling from the edge.

In the case where the pressing roller is provided with a hole-piercing claw, a hole is formed in the sheet toward the field scene side when the roller is pressed to perform a pressing operation, so that the folding back of the hole outer periphery is pressed to the field scene side. At the same time, muddy water in the field spouts from the holes formed in the sheet to the upper surface side of the sheet to further enhance the adhesiveness of the sheet, and also improves the adhesiveness when overlapping a part of the adjacent edges of the sheet and covering them. To do.

As a result, the peeling of the sheet does not occur during the influence of wind and water management, and a more preferable effect for achieving the original purpose of multi-transplantation, that is, prevention of weeds is exhibited.

[Brief description of drawings]

FIG. 1 is an overall side view of a multi-transplanter.

FIG. 2 is an overall plan view of a multi-transplanter.

FIG. 3 is an enlarged rear view of a pressing roller.

FIG. 4 is an enlarged rear view of another press roller with a claw.

FIG. 5 is an enlarged rear view of a conventional pressing roller.

6A to 6C are side views showing an operating state of a press roller with a claw.

[Explanation of symbols]

 1 Machine 9 Working Machine 16 Sheet 38 Pressing Roller 42 Field 43 Claw 44 Hole

Claims (2)

[Claims] 1. A roll-shaped sheet (16) which is connected to a rear part of the traveling machine body (1) and is fed to the side of the work machine (9) with the traveling of the machine body. A sheet is provided with a pressing roller (38) for pressing the end of the sheet (16) against the surface of the field (42), wherein the pressing roller (38) is tapered in a truncated cone shape having a large diameter on the outer end side. Formed pressing roller for multi-transplanter. 2. A planting work machine (9) is connected to the rear of the traveling machine body (1), and a roll-shaped sheet (16) fed out to the planting work machine (9) side as the machine body travels, In the case where a pressing roller (38) for pressing the end of the sheet (16) against the surface of the field (42) is provided, the roller (38) rolls on the sheet (16) around the outer circumference of the pressing roller (38). A pressing roller for a multi-transplanter, which comprises projecting claws (43) for forming holes (44) for bringing the sheet (16) into close contact with the surface of the field (42).