JPS6358521B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seeding and mulching device that can perform seeding and mulching at the same time.

Conventionally, when both seeding and mulching were performed, the ridges were first covered with a synthetic resin sheet by mulching, and then holes were continuously drilled at predetermined intervals in the sheet. The method that has been adopted is to make a depression at the location and sow the seeds there. However, since this method is inefficient, sowing and mulching can be done simultaneously by covering the field with a perforated sheet with rows of holes in advance and dropping seeds onto the field through the holes of the perforated sheet. Devices have been developed to do this. With this new device, the rear of the seat is pressed against the field as the device moves.
The structure is such that the sheets are pulled out one after another in a taut state, but when used on sloped or uneven fields, the sheets sometimes loosen, making it impossible to perform seeding and mulching properly. Furthermore, in devices equipped with a tilting device that can adjust the longitudinal inclination of the machine body with respect to the ground, adjusting the inclination often causes the seat to become loose, making it impossible to perform the work properly.

This invention was made in view of the above circumstances,
To provide a seeding and mulching device that can perform both seeding and mulching operations efficiently and always perform accurate seeding operations.

The seeding and mulching device according to the present invention includes a groove-making device for forming seed-seeding grooves in a field, and a perforated sheet having a plurality of holes drilled in rows, the rows of holes being formed by the groove-making device. The sheet feeding device continuously feeds the sheet over the field so that it overlaps with the grooves, and the sensor detects the hole in the sheet when it comes directly below and opens the seeding hole. A seeding machine that appropriately drops seeds into the groove through the holes, and a seeding machine installed under the sheet and inserted into the ground near the groove to collapse the side walls of the groove after sowing,
The device is equipped with a soil-covering rod for covering seeds with soil, and is characterized in that the soil-covering rod installation part is provided with a guide member for holding the delivered sheet between the soil-covering rod and the soil-covering rod. Embodiments of the present invention shown in the drawings will be described below.

FIG. 1 is a side view showing an example of the seeding and mulching device according to the present invention in use, FIGS. 2 and 3 are enlarged views of its main parts, and FIGS. 4 and 5 a, b,
c is an explanatory diagram of functions. This seeding and mulching device 1 is equipped with a groove making device 2, a sheet feeding device 3, a seeding machine 4, a soil covering device 5, and a sheet pressing device 6. 9 to a tractor (not shown). The angle changing device 8 is a device that adjusts the inclination of the seeding and mulching device 1 in the front-rear direction with respect to the ground according to the field conditions.
A flat middle member 80, a side plate 81 that surrounds the middle member 80 in a U-shape, a variable angle pin 82 that passes through the center of the middle plate 80 and side plate 81 and rotatably connects them, and a side plate. It consists of two upper and lower bolts 83 and 84 that are screwed into the rear part of 81. The bolts 83 and 84 press the middle member 80 from the rear, and the angle between the middle member 80 and the side plate 81 can be changed by adjusting the tightness of both bolts. The parallel link device 9 includes an upper link 90 and a lower link 91 to which a stopper 98 is attached, and a vertical member 92 fixed to the middle member 80 of the angle changing device 8.
and a vertical member 93 on the tractor side. The two upper and lower links 90, 91 and the two vertical members 92, 93 form a parallelogram, and each member has four pins 94, 95, 9 at the apex of the parallelogram.
6 and 97. The vertical member 92 on the device side is fixed to the middle member 80 of the angle changing device 8, and the vertical member 93 on the tractor side is fixed to the horizontal frame 1.
1 to a connecting frame 12.
When this seeding mulching device is used for towing,
Even if there is a difference in height between the tractor and the device due to uneven ground, etc., the device can move vertically in parallel due to the action of the parallel link device 9, allowing smooth work to continue. In the illustrated example, the seeding and mulching device 1 is pulled in the direction of arrow A across a field 13 formed into ridges.

The groove-making device 2 is constructed by attaching groove-making rings 16, one on each side on the left and right sides, to the outer periphery of a leveling roll 15 provided in the front position of the sheet feeding device 3. The groove 14 is configured to be formed. The leveling roll 15 is attached to the mounting frame 17
It is rotatably supported by an L-shaped support member 18 attached to the support member 18, and a mud remover 19 is attached to the tip of the support member 18 for removing soil that adheres to the trench ring 16 during work. There is. In addition, instead of constructing the structure so that leveling work and trenching work are performed at the same time as in the illustrated example, after leveling the field surface with a leveling roll, other types such as ho-type, shoe-type, disc-type, etc. There is also a method of making grooves using a groove making device.

The sheet supply device 3 supplies sheets 2 for mulching.
A sheet roll holding section 22 that holds a sheet roll 21 wound into a roll, and sheet guides 23 and 23' that guide the sheet 20 being fed out.
and a guide roll 24. The sheet roll holding section 22 is composed of a support shaft 25 that rotatably supports the sheet roll 21 and a column 26 that supports the support shaft 25. The column 26 is connected to the mounting frame 17.
is attached to. Sheet guide 23, 2
3' is fixed to a shutter case 29 supported by a bar 28 connecting the left and right mounting frames 27, 27, and the guide roll 24 is rotatably mounted to the mounting frame 27. The sheet guides 23, 23' are made of elastic material, and are supported so that their lower ends hang down at the same level as or below the soil covering rods 50, 50', which will be described later. . The sheet 20 is
It is a perforated sheet having a plurality of holes 30 formed in rows at predetermined intervals along the longitudinal direction, and is let out from the sheet roll holder 22 as the seeding and mulching device advances, and is attached to the guide roll 24 and the sheet guide. 23, 23' and soil covering rod 50, 5
0', the sheet 2 is placed over the field so that its row of holes overlaps the groove 14.
0 is sequentially pulled out from the sheet roll because the seeding and mulching device moves with the rear part pressed against the field.

The seeding machine 4 has a pair of left and right sub-frames 31, 31.
It is supported by a support rod 33 that projects rearward from a horizontal rod 32 that connects the two. Seeding machine 4 in the illustrated example
A seed feeding roll 34 is provided as a seed feeding means, and by rotation of the seed feeding roll 34, seeds stored in a storage chamber (hopper) 35 are sent to a funnel 36 attached to a support rod 33. The lower end of this funnel 36 is connected to the shutter case 29 via a transport pipe 37. As a seeding machine,
The device is not limited to the illustrated example, but any other suitable device that is equipped with a storage chamber and feeding means and capable of feeding seeds in appropriate amounts can be used.

The shutter case 29 has a seeding port 38 at the lower end.
A shutter 39 for opening and closing the seeding port 38 is provided. This shutter 39 is connected to the seeding port 38.
A rod-shaped sensor 4 rotatably installed nearby
It opens and closes in conjunction with the hole 3 of the seat 20.
0 comes directly below the seeding port 38, the sensor 40 falls into the hole 30 of the sheet, and the shutter 3
9 is opened (seeds are sent out), but if the non-perforated part of the sheet 20 is directly below, the shutter 39 will remain closed because the sensor 40 will be lifted above the sheet. , seed fall is prevented.

The soil covering device 5 includes a pair of soil covering rods 5 that are arranged in parallel with a slightly wider interval than the seeding groove 14.
0,50'. Soil covering rod 50,5
0' is fixed to the tip 52 of a support member 51 provided so as to bypass the sheet roll 21 in front of the seeding port 38 with a bolt 53, and is attached to the rear of the seeding port 38 along the path of the sheet 20. It has been extended. The tips of the soil covering rods 50, 50' are bent downward behind the seeding port 38 and inserted into the ground. Further, the leading end portions are slightly bent in a direction in which the distance between them becomes narrower when viewed from the rear.

The sheet pressing device 6 includes a pressing roller 56 that presses down the side edges 55 of the sheet covered on the ridge, a soil covering disk 57 that places soil for weight on the side edge, and a ridge 13 covered with the sheet 20. It consists of a pressing ring 58 that presses down the upper surface of the sheet from above. The suppression wheel 58 is rotated by the frictional force of the sheet, and this rotational force is transmitted to the drive shaft 60 of the seed sowing machine 4 by the chain 58 to rotate the seed delivery roll 34. The sheet holding device is not limited to the device shown in the illustrated example, but any device that can successfully press the sheet fed from the sheet feeding device 3 onto the field surface, at least temporarily, may be adopted. .

The sheet 20 is fed out with the upper surface of the sheet 20 in contact with the lower ends of the sheet guides 23, 23', but the lower ends of the sheet guides are at or above the upper ends of the soil covering rods 50, 50' as described above. Since the sheet 20 is supported at a position lower than the soil cover, both sides of the sheet 20 are held between the sheet guides 23, 23' provided on each side and the soil covering rods 50, 50', and are always kept in a tensioned state. It will be done. Therefore, the position of the hole in the sheet does not shift, and the sensor 40 acts to accurately close the seeding port 38 in the portion of the sheet 20 where there is no hole. As shown in FIGS. 5a, 5b, and 5c, there is no possibility that the sheet will sag by adjusting the mounting angle of the seed-mulching device 1 on the tractor. Further, the elastic soil covering rods 50, 50' are constantly pushed upward by the resistance of the soil during work, which is effective in supporting the sheet under tension.

As explained above, with the seeding and mulching device according to the present invention, it is possible to perform both seeding and mulching operations efficiently, and it is also possible to support the mulching sheet under tension at all times, thereby ensuring accurate seeding. I was able to do the work.

[Brief explanation of drawings]

Fig. 1 is a side view of one embodiment of the seeding and mulching device according to the present invention, Figs. 2 and 3 are enlarged views of its main parts, and Figs. 4 and 5 a, b, and c are explanatory diagrams of functions. It is. 1... Seeding mulching device, 2... Grooving device,
3... Sheet feeding device, 4... Seeding machine, 5... Soil covering device, 6... Sheet pressing device, 8... Angling device, 9... Parallel link device, 20... Sheet, 2
3, 23'... Seat guide, 24... Guide roll, 29... Shutter case, 30... Seat hole, 31... Main frame, 40... Sensor, 50, 50'... Soil covering rod.

Claims (1)

[Claims] 1. A trenching device that forms grooves for seeding in a field, and a perforated sheet having a plurality of holes drilled in rows in a field so that the rows of holes overlap with the grooves formed by the trenching device. A sheet feeding device that continuously feeds seeds from above, and a sensor that detects the hole in the sheet when it comes directly below and opens the seeding port, feed the seeds appropriately into the groove through the hole in the sheet. A device comprising a dropping seeding machine, and a soil covering rod installed under the sheet and inserted into the ground near the trench to collapse the trench side wall after sowing and cover the seeds with soil, A seeding/mulching device characterized in that the soil-covering rod installation portion is provided with a guide member that holds the sheet sent out between the soil-covering rod and the soil-covering rod.