JPH0412921B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus capable of performing both seeding and mulching operations.

Conventionally, when both sowing and mulching are performed, the ridges are first covered with a synthetic resin sheet such as a vinyl sheet, and then holes are continuously punched in the sheet at predetermined intervals. A widely used method has been to make a shallow hole-shaped depression at the location of the hole and sow the idea there.

However, in the above-mentioned conventional method, the perforation position in the sheet, the depression formation position in the ground, and the seeding position all have to be aligned, so it is difficult to automatically perform this series of operations using mechanical power.

The present invention was made in view of the above circumstances, and it is an object of the present invention to provide a device that can efficiently perform both mulching and seeding operations. That is, the seeding mulching device according to the present invention includes a groove-making device for forming seeding grooves in a field, a seeding machine that supplies seeds into the formed grooves,
and a sheet feeding device that continuously feeds a sheet having a plurality of holes drilled in rows onto the field through a gap between the trenching device and the seeding machine so that the rows of holes overlap with the grooves. , a narrow hole detector below the seeding machine that falls into the hole when the sheet passes through the hole and opens the seed discharge port of the seeding machine;
A tensioning body for tensioning the sheet is provided near the hole detection body, and the hole detection body is located below the seed discharge port, has a base pivotally attached to the front part of the seed discharge port, and has an intermediate portion facing downward. It is characterized in that it is formed in a curved shape that protrudes toward the outside, and that the curved portion is located toward the rear of the center of the seed ejection port.

Embodiments of the invention shown in the drawings will be described below.

FIG. 2 is a side view showing one example of the seeding and mulching device according to the present invention. It is pivotally connected to the base 11 of the tiller 10. In this case, the mounting angle with respect to the base 11 is
It can be freely adjusted using the jack 9'.
A ridge forming device 1 is installed at the rear of this rotary tiller 10.
2 is installed, and the rotary tiller 1
The base 11 of No. 0 is connected to a power agricultural machine (not shown) by an upper link 13 and a lower link 14. Therefore, tillage using the illustrated example device,
Ridge forming, seeding and mulching operations can be performed at the same time. The power of the rotary tiller 10 is transmitted from the PTO shaft 15 of the power agricultural machine via a universal joint 16.

A groove making device 6 creates grooves 2 for seeding in the formed ridge 1.
Various commonly used groove makers such as a hoe type, shoe type, and disk type can be used. Although a device equipped with a rotating seed feed roll 8c is used as the seeding machine 8, other seeding machines may be used.

The sheet feeding device 7 supplies the sheet (perforated sheet) 3
It is comprised of a shaft 7a that rotatably supports a sheet roll 17 wound into a roll shape, and a support 7b that supports this shaft 7a. The sheet 3 fed out from the sheet supply device 7 passes between the groove making device 6 and the seeding machine 8 and is placed over the field (the surface of the ridge in the figure). In the path of the sheet 3, a tensioning body 30 is provided directly below the side of the seed sowing machine 8 to tension support the sheet while lifting it toward the seed discharge port 8a. The tension body 30 has a front end fixed to a support frame 31 that detours around the front of the sheet roll 17, and is formed in a curved shape with a raised central part. In addition,
The tension body 30 may be anything that can tension the sheet 3 in the vicinity of the hole detection body. The sheet 3 is a perforated sheet as shown in Fig. 1, and is placed over the grooves 2 so that the rows of holes are overlapped.At this time, as shown in Fig. Seeds are supplied from the seed opening 8a into the groove 2 through a popper 18 provided on the underside of the sheet as required. In the illustrated example of the apparatus, the sheet 3 has the ridge 1
Although the seeds are sown through the holes 4 before reaching the top, the seeds may be sown through the holes 4 of the sheet 3 after the ridge 1 is covered with the sheet 3. Even in the case of shearing, the sheet 3 passes between the sowing machine 8 and the groove-making device 6 and is covered. In addition, in the example shown in FIG.
b is provided, and the hole 4 of the sheet is the seed discharge port 8a.
When it comes directly under the hole, it detects the hole and opens the seed exhaust port 8a. The hole detection body 8b is formed in a curved shape in which an intermediate portion located rearward of the seed discharge port 8a projects downward, and is supported by a shaft 8d so as to be freely rotatable up and down. If the part of the sheet without holes is directly below the sheet, use sheet 3.
Although the sheet is placed on top, the hole 4 of the sheet is the seed discharge port 8.
When the hole detection body 8b falls into the hole, the lid integrated with it (indicated by the broken line in FIG. 2) is rotated downward about the shaft 8d, and the hole detection body 8b falls into the hole. It opens.

In this case, since the curved part of the hole detection body 8b (this part slides on the sheet) is located behind the seed discharge port 8a, the seed discharge port opens immediately when the detection body falls into the hole of the sheet. Seeds are dropped into the grooves through the holes in the sheet.

In addition, the illustrated mulching device includes a pressing roller 19 that presses down the side edge 3a of the sheet 3 being fed out, a soil covering disk 20 that covers the side edge with soil, and the upper surface of the ridge 1 covered with the sheet 3. of,
A pressing ring 21 is provided to press down the sheet 3 from above. This suppression wheel 21 is rotatably provided while being constantly pressed against the sheet by a spring 22, and rotates freely due to the frictional force with the sheet, but this rotational force is transmitted to the seeding machine and rotates the seed feed roll 8c. let Note that the groove after sowing is partially collapsed by this suppression wheel 21, thereby covering the seeds with soil.

When using this seeding mulching device 5,
The furrow 1 is cultivated by the rotary tiller 10 and the furrow 1 is formed by the furrow forming device 12, and the furrowing device 6 forms grooves 2, 2 for seeding. Then, the ridge 1 is covered with a sheet, seeds are sown at the positions of the holes 4 of the sheet, and the seed is covered with soil from above using a pressure wheel. In this way, sowing and mulching can be carried out efficiently at the same time.

As explained above, the seeding and mulching device according to the present invention forms a seeding groove with a groove-making device, feeds out a perforated sheet through the gap between the groove-making device and the seeding machine, and covers the field area with the perforated sheet. With,
Since the seeds are fed into the furrow through the holes in the sheet, both sowing and mulching operations can be performed very efficiently. Moreover, the hole detection body that detects the holes in the perforated sheet and opens the seed discharge port is formed in a curved shape with the center part protruding downward, so the movement of the detection body is light and smooth vertical movement is possible. can be ensured. The curved part of the detection object is located behind the seed discharge port of the seed sowing machine, and when the seed falls into the hole in the sheet, the seed discharge port opens immediately and the seed falls directly into the hole. The structure is simple, and there is no possibility of seed clogging or sheet damage.
Further, since a tensioning body for tensioning the sheet is provided below the detection body, the hole portion of the sheet is supported in a tensioned state, and the opening/closing operation of the seed ejection port becomes more reliable.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a ridge that has been mulched, FIG. 2 is a side view of a seeding mulching device, and FIG. 3 is a sectional view of the ridge showing the seeding state. 1...Round, 2...Groove, 3...Sheet, 4...
Hole, 5... Seeding mulching device, 6... Grooving device, 7... Sheet feeding device, 8... Seeding machine, 8a
...Exhaust port, 8b...hole detection body, 30...tension body.

Claims (1)

[Claims] 1. A groove-making device for forming grooves for seeding in a field, a seeding machine for feeding seeds into the formed grooves, and a sheet having a plurality of holes drilled in rows, with the rows of holes forming grooves. A sheet feeding device is provided that continuously feeds the field onto the field by passing between the trenching device and the seeding machine so as to overlap with the groove forming device, and a sheet feeding device is provided below the seeding device so that the sheet feeds into the hole when the sheet passes through the hole. , a narrow hole detector that opens the seed discharge port of the seeding machine,
A tensioning body for tensioning the sheet is provided near the hole detection body, and the hole detection body is located below the seed discharge port, has a base pivotally attached to the front part of the seed discharge port, and has an intermediate portion facing downward. A seeding mulching device characterized in that it is formed in a curved shape that protrudes toward the rear, and that the curved portion is located toward the rear of the center of the seed discharge port.