JPH0449856Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention is a furrower for forming grooves attached to a fertilizer seeding machine, etc., and is used to scrape off soil, etc. that adheres to the furrower disk. Regarding the structure of the scraper.

(b) Prior art Conventionally, groove-making machine disks such as fertilizing and seeding machines have been composed of one or two disks, and the grooves are formed by moving the disks forward. In order to prevent soil from adhering to the support portion when the disk rotates, a technique is known in which a scraper is provided on the screen of the disk to scrape off soil and the like. For example, Utility Model Publication No. 12325/1983,
Examples include JP-A-57522, JP-A-55-51190, JP-A-54-125315, and JP-A-60-182712.

(c) Problems to be solved by the invention However, in the above-mentioned conventional technology, the lower end of the seed guide pipe placed inside the groove-cutting disk is not reliably supported, so it may stick to the inside of the groove-cutting disk. When the amount of muddy soil increased, this muddy soil affected the position of the seed guide pipe, causing problems such as changing the sowing position and clogging the bottom end of the pipe.

Similarly, the fertilizer guide pipe placed outside the ditch-cropping disc was also affected by mud adhering to the outside of the ditch-cropping disc, causing problems such as changing the fertilizer application position and clogging the lower end of the pipe. It is.

The present invention is intended to eliminate such inconveniences.

(d) Means to solve the problem In order to solve these problems, this invention
It is constructed as follows.

A fertilizer guide pipe 24 and a seed guide pipe 25 are extended from the fertilizer dispensing device 12 and the seed dispensing device 13, and the fertilizer guide pipes are installed on the outside of the groove-making disks 5, 5, which are constructed by combining the front and lower sides of two steel discs. 24, and the lower end of the seed guide pipe 25 is
An outer scraper is disposed at the rear of the support frame 4 that supports the groove-making disks 5, 5 on the inside, and a stay 19 protrudes from the upper part of the support frame 4 to the outside of the groove-making disks 5, 5, and is arranged at both ends of the stay 19. 6 passes through the outside of the fertilizer guide pipe 24 and comes into contact with the rear side surfaces of the groove-making disks 5, 5, and the brackets 11, 11 protrude from the rear of the support frame 4 to the rear inside of the groove-making disks 5, 5. An inner scraper 7 is disposed at the rear end, and the inner scraper 7 is inserted into the groove cutting disk 5 at the rear of the seed guide pipe 25.
A seed guide pipe 25 is disposed between the brackets 11, 11 and in contact with the inner surface of the seed guide pipe 5.

(e) Embodiment The purpose of the present invention is as described above, and the structure of the present invention will be explained based on the structure of the embodiment shown in the attached drawings.

FIG. 1 is a side view of the entire fertilizing and seeding machine, and FIG. 2 is a front view of the same. Several fertilizing and seeding machines are installed in parallel on the mounting bar 2 so that they can fertilize and sow many rows at once, and the mounting frame 1 of the fertilizing and sowing machines is installed on the mounting bar 2.
is inserted.

A fertilizer dispensing device 12 and a seed dispensing device 13 are fixedly installed on the rear surface of the mounting frame 1, and a fertilizer dispensing device 12 and a seed dispensing device 13 are arranged in front and in parallel, and a fertilizer hopper 14 and a seed hopper 15 are placed on the fertilizer dispensing device 12 and the seed dispensing device 13. has been done. The fertilizer feeding device 12 and the seed feeding device 13
The feeding roll is rotated by rotation of the drive shaft 3 penetrating through the center of the fertilizer feeding device 12, and the feeding roll feeds out a fixed amount of fertilizer and seeds placed in the fertilizer hopper 14 and the seed hopper 15.

Shutters 16 and 16 are closed except when removing the fertilizer hopper 14 and seed hopper 15 or during work to prevent fertilizer, seeds, etc. from falling. Further, the fertilizer dispensing device 12, the seed dispensing device 13, the fertilizer hopper 14, and the seed hopper 15 are each fixed by one-touch fittings 17, 17, . . . .

Parallel links 9, 9 are provided at the bottom of the mounting frame 1.
The seeding frame 10 is connected to the seeding frame 10 through the V.
Grooving disks 5, 5 arranged in a letter shape and scrapers 6, 7 of the present invention are attached.

The groove making disk 5 is made of two steel plates such as stainless steel plates with the front and lower parts together, and the scrapers 6 and 7 are in contact with both sides of each groove making disk 5, 5, the details of which will be described later. do.

Also, from the side of the seeding frame 10, the arm 20
protrudes rearward and downward, and a soil covering disk 21 is fitted to the tip thereof, and a pressure frame 22 is provided rearwardly projecting from the rear end of the seeding frame 10, and a pressure roller 23 is pivotally supported at the rear end.

A guide pipe 2 is provided in the seeding frame 10.
4, 25 are fixedly installed, and the upper end is connected to the fertilizer feeding device 1.
2. Bellows 26, 2 at the lower end of the seed feeding device 13
As shown in FIG. 3, the lower end of the guide pipe 24 is connected to the scraper 6 so as to guide the fertilizer to the outside of the groove-cutting disk 5, and the lower end of the guide pipe 25 is connected to the groove-cutting disk 5. It extends into brackets 11, 11 fixed to the support frame 4 between the brackets 5, 5.

To explain the structure of the scrapers 6 and 7 of the present invention in detail, Fig. 3 is a plan view of the groove making device, Fig. 4 is a front view of the outer scraper, Fig. 5 is a side view, and Fig. 6 is a plan view of the inner scraper. , Figure 7 is also a front view, and Figure 8 is a front view.
The drawings are also a view in the direction of arrow A in FIG. 7, and FIG. 9 is a rear view of the groove-making disk.

The outer scraper 6 and the inner scraper 7 are made of an elastic and corrosion-resistant steel plate such as stainless steel. is fixedly installed, and mounting holes 6a, 6 are provided at the upper end of the outer scraper 6.
a is open. Then, the strength is increased by providing ribs 6b that gradually become smaller as they go downward from the upper central part, and the lower part of the outer scraper 6 is bent inward at an angle a (approximately 45 degrees) to form the guide pipe 24.
The end portion 6c is bent outward slightly (approximately 15 degrees) to form a two-step fold, and the angle of contact with the groove-forming disks 5 is set to b. That is, it is bent so that the angle b is 20 degrees or less.

In addition, the inner scraper 7 is bent approximately 90 degrees at the center, and a mounting hole 7b is opened in the front mounting portion 7a, and the inner scraper 7 is fixed to the rear end of the brackets 11, 11 fixed to the rear surface of the lower end of the support frame 4. Ru. Then, the center portion of the other side of the inner scraper 7 is bent slightly outward (angle c), and the contact angle of the end portion 7c with the groove-making disk 5 is set at an angle c, similar to the outer scraper 6.
below 20 degrees.

(f) Effect of the invention In this configuration, the contact angle between the scrapers 6, 7 and the groove-making disk 5 becomes small, and vibrations due to friction between the two are eliminated, and soil, etc. attached to the groove-making disk 5 is rotated. along with scraper 6,
7, and the angle of the scraper gradually becomes steeper, causing the soil, etc. to fall downward.

(g) Effects of the invention With the above configuration, the invention provides the following effects.

Firstly, in the past, the lower end of the seed guide pipe placed inside the groove-cutting disk was not supported reliably, so if the amount of mud adhering to the inside of the groove-cutting disk increased, this mud would guide the seeds. The position of the pipe was affected, causing problems such as the seeding position being changed and the lower end of the pipe becoming clogged.

Similarly, the fertilizer guide pipe placed outside the ditch-cropping disc was also affected by mud adhering to the outside of the ditch-cropping disc, causing problems such as changing the fertilizer application position and clogging the lower end of the pipe. It is.

In the present invention, by arranging the seed guide pipe 25 inside the brackets 11, 11, the position of the seed guide pipe 25 can be fixed, and also when mud adheres to the inside of the groove cutting discs 5, 5. Also, the brackets 11, 11 can prevent mud from approaching the seed guide pipe 25.

Furthermore, the inner scraper 7 attached to the rear end of the brackets 11, 11 can also scrape off mud, so the above-mentioned problem can be solved.

Further, with respect to the fertilizer guide pipe 24, adhering mud can be scraped off by the outer scraper 6, and the outer scraper 6 prevents the fertilizer guide pipe 24 from moving, so that fertilizer can always be applied in the same position. It is.

Second, it becomes possible to protect the lower end of the fertilizer guide pipe 24, whose lower end is disposed outside the groove-cutting disk 5, by the outer scrapers 6, 6, thereby preventing the fertilizer guide pipe 24 from coming into contact with obstacles. It can be prevented.

Third, the lower end of the seed guide pipe 25 placed inside the groove-making disks 5, 5 is connected to the bracket 1.
1, 11 and the inner scraper 7, it is possible to protect the hole at the lower end of the seed guide pipe 25 from being clogged against the entry of obstacles from below or from behind.

[Brief explanation of drawings]

Figure 1 is a side view of the entire fertilizing and seeding machine, Figure 2 is a front view, Figure 3 is a plan view of the furrower, Figure 4 is a front view of the external scraper, Figure 5 is a side view, and Figure 6 is a front view of the fertilizing seeding machine.
The figure is a plan view of the inner scraper, FIG. 7 is a front view, FIG. 8 is a view taken along arrow A in FIG. 7, and FIG. 9 is a sectional view of the groove-forming disk. 4... Support frame, 5... Grooving disk,
6, 7...Scraper, 11...Bracket, 1
2... Fertilizer feeding device, 13... Seed feeding device, 1
9... Stay, 24... Fertilizer guide pipe, 25
...Seed guide pipe.

Claims (1)

[Scope of utility model registration request] A fertilizer guide pipe 24 and a seed guide pipe 25 are extended from the fertilizer dispensing device 12 and the seed dispensing device 13, and a fertilizer guide is installed on the outside of the groove-making disks 5, 5, which are constructed by combining the front and lower sides of two steel discs. pipe 24
The lower end of the seed guide pipe 25 is placed at the rear of the support frame 4 that supports the groove-making disks 5, 5 on the inside, and the seed guide pipe 25 is placed at the rear of the support frame 4 that supports the groove-making disks 5, 5 on the inside, and the seed guide pipe 25 is placed at the rear of the support frame 4 that supports the groove-making disks 5, 5 on the inside. 19 protrudes, and the outer scrapers 6 disposed at both ends of the stay 19 pass through the outside of the fertilizer guide pipe 24 and come into contact with the rear sides of the groove-making disks 5, 5, and the groove-making disks are removed from the rear of the support frame 4. An inner scraper 7 is disposed at the rear end of the brackets 11, 11 that protrude to the rear inside the seed guide pipe 25, and the inner scraper 7 is inserted into the groove cutting disk 5,
A scraper for a fertilizing and seeding machine, characterized in that a seed guide pipe 25 is disposed between the brackets 11 and 11 in contact with the inner surface of the fertilizing seeding machine.