JPH0424887Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field The present invention relates to a fertilization seeding machine attached to the rear of a tractor or a walk-behind cultivator.

(b) Prior Art Devices that are attached to the rear of tractors and walk-behind cultivators and that simultaneously perform fertilization and seeding have been known.

For example, Utility Model Application No. 60-133718 and Utility Model Application No. 58-
As in Publication No. 103815.

(c) Problems to be solved by the invention The purpose of the invention is to make it easier to confirm the position when changing the fertilization/sowing position depending on the type of crop or type of fertilizer using the fertilizing/seeding machine. This is related to the configuration of the .

Conventionally, a structure is known in which a fertilizing/seeding frame can be slid left and right on a mounting beam fixed to the tractor side in order to make it possible to change the fertilizing/seeding position.

However, although a scale has been displayed on the mounting beam in the past, the tightening bracket covers and hides the scale, making it impossible to confirm the center position of the fertilization and seeding frame. be.

In particular, since the sowing position is located directly below the center of the fertilizing and sowing frame, if the scale is at the end position of the tightening bracket, the sowing position will not be displayed, and half the width of the tightening bracket will be subtracted. The position of the sowing was calculated by adding or adding the sowing, and the position of the adjacent fertilization and sowing frame was calculated based on the position.

In order to solve the conventional problem that the scale read at the end of the tightening bracket was different from the sowing position, the present invention is to tighten the clamp at a position where the center position of the fertilization and sowing frame, that is, the sowing position can be accurately read. A reading hole is opened on the bracket surface.

Furthermore, by making the part of the reading hole corresponding to the seeding position particularly narrow, it is possible to confirm the seeding position more accurately.

(d) Means for solving the problem The purpose of the present invention is as described above. Next, the configuration for achieving the purpose will be explained.

On the mounting beam 8, the fertilizing sowing frame 5
8 is configured to be slidable left and right to adjust the fertilization/seeding position, a scale 8a is displayed on the top surface of the mounting beam 8, and a scale 8a is displayed in the center of the tightening bracket 58a of the fertilization/seeding frame 58.
The reading hole a is open.

Furthermore, the width of the reading hole corresponding to the seeding position is particularly narrow.

(e) Structure of the embodiment The purpose and structure of the present invention are as described above. Next, the structure of the embodiment shown in the attached drawings will be explained.

Fig. 1 is a side view of the fertilizing and seeding machine of the present invention, Fig. 2 is a side view of the mounting beam 8 and the tightening bracket in a tightened state, Fig. 3 is a side view of the same in a loosened state for removal, and Fig. 4 1 is a plan view of the mounting beam 8 and the tightening bracket portion, and FIGS. 5, 6, and 7 are plan views showing other embodiments of the reading hole.

The overall structure of the fertilizing and seeding machine will be explained with reference to FIG.

The fertilizing seeding machine of the present invention is attached from the rear to the tail wheel side rod that supports the tail wheel of a rotary tiller.

That is, the "U" shaped part of the hitch 13 is inserted into the rectangular part for attaching the rear work machine of the tail wheel horizontal rod 50 from behind, and connected by the hitch pin 13a.
If only the hitch pin 13a is used to lock the hitch 13, play will occur between the rectangular part for attaching the rear working machine and the hitch 13. Therefore, by pressing the pressing body 13b with the tightening bolt 13c, the hitch 13 and the rectangular part for attaching the rear working machine are connected. This eliminates the gap between them.

An adjustment frame 52 protrudes above the hitch 13, and a pivot shaft 52a provided on the adjustment frame 52.
A rotating frame 25 is pivotally supported. A rotation adjustment screw 14 is interposed between the adjustment frame 52 and the rotation frame 25, and by rotating the rotation adjustment screw 14, the entire fertilizing and seeding machine rotates rearward about the pivot shaft 52a. It rotates up and down to adjust its level with the soil surface.

The adjustment by the rotation adjustment screw 14 is an adjustment by rotation, but in addition to this, a seeding depth adjustment lever 15 is arranged diagonally forward to adjust the entire fertilizing and seeding machine up and down in a horizontal state. The lower end of the seeding depth adjustment lever 15 is connected to an adjustment screw rod 16 via a joint, and when the adjustment screw rod 16 rotates, the female screw bodies fixed in the slide tubes 26, 26 are moved up and down. , the fertilizing and seeding machine is raised and lowered horizontally. When the sowing depth adjusting lever 15 is moved up and down, the slide tube 26 attached to the rotary frame 25 and fitted in the guide rod 53 moves up and down while maintaining a horizontal state. A bracket protrudes from the lower side of the slide tubes 26, 26, and the lower side of the mounting beam 8 is fixed by welding. A drive frame 38 is arranged on the mounting beam 8 so as to be slidable and fastened thereto.

Further, a fertilizing/seeding frame 58 is arranged so as to be slidable and fixed on the mounting beam 8.

A fertilizing and dispensing device A is attached to the rear of the fertilizing and sowing frame 58, and a sowing and dispensing device B can be attached to the fertilizing and dispensing device A using a one-touch mounting tool.

Further, upper and lower parallel links 24 and 23 are rotatably protruded from the fertilization and seeding frame 58, and a roller frame 36 is attached to the rear ends of the parallel links 24 and 23. A stopper 55 for regulating the downward rotation width of the parallel links 24 and 23 is provided on the fertilization and seeding frame 58. In addition, the parallel link 24,
Spring force adjustment lever 3 for adjusting the urging spring force of 23
5 is provided. Furthermore, the roller frame 3
A support rod 54 of the groove-forming disk 10 protrudes below 6, and the rotary shaft of the groove-forming disk 10 is supported by a bearing at the lower end of the support rod 54. The groove making disk 10
The sowing guide pipe 20 is made up of two wedge-shaped stainless steel disks that are in close contact with each other at the front, and the sowing guide pipe 20 is fitted into the wedge-shaped widening portion at the rear of the groove-making disk 10. be. Therefore, the position of the lower end of the seeding guide pipe 20 is the central position of the roller frame 36, and as a result, the central position of the fertilization and seeding frame 58 is the sowing position.

Further, the fertilizing guide pipe 19 disposed at the front of the sowing guide pipe 20 is disposed outside the groove-making disk 10 at a position protected by a scraping plate 41 to drop fertilizer thereon. If fertilizer is placed so that it overlaps with sown seeds, the crops after germination will suffer from fertilizer burn, so fertilizer is applied to the side rows to the extent that fertilizer burn does not occur.

However, when the seeds grow after germination, it is the sowing position that matters, and the operator calculates the sowing position.

Further, a soil covering disk 11 is protruded and supported from the roller frame 36 behind the seeding portion of the groove cutting disk 10. The soil covering disk 11 lightly covers the seeds sown in the grooves made by the wedge-shaped groove cutting disk 10.

Further, a support rod 12a protrudes from the roller frame 36 to support the soil covering roller 12.

The soil covering roller 12 is configured to have a width that covers both the fertilization position and the sowing position, and the soil covering roller 12 crushes the fertilizer and seeds in the furrow.

In the above configuration, the groove making disk 10 and the soil covering disk 11 attached to the roller frame 36
The soil covering roller 12 moves up and down by freely rotating the parallel links 24 and 23 according to the unevenness of the soil surface, so even if the tractor body moves up and down, the sowing depth can be kept constant. be.

On the other hand, the upper hopper and the feeding device part are fixed to the mounting beam 8 and do not follow the unevenness of the soil surface, so between the feeding device and the roller frame 36, the bellows rubber pipe 17, 18, it is possible to absorb changes in the gap between the feeding device section and the roller frame 36 section.

The grounding wheel 9 is pivotally supported on the drive frame 38 using the feed-out shaft 7 as a pivot shaft. A guide rod 21 and a biasing spring 22 are interposed between the rear end of the drive frame 38 and the chain case 47 of the grounding wheel 9, so that the grounding wheel 9 is always grounded on the soil surface.

The rotation of the grounding ring 9 causes the feed shaft 7 to rotate via the chain in the chain case 47. The feeding shaft 7 has a hexagonal shape, and as the fertilizing and seeding unit slides left and right on the mounting beam 8, the fertilizing feeding device A can slide left and right on the feeding shaft 7. It is structured as follows.

The fertilization feeding device A is a fertilization and seeding frame 58.
It is fixedly installed at the rear end of the fertilizer application device A.
The sowing and feeding device B is attached to the rear surface of the seeding machine via right and left one-touch fittings 30, 30.

Further, the fertilizing hopper 1 is fixedly installed on the fertilizing feeding device A via left and right one-touch fittings 31, 31. And sowing hopper 2
The lower part is fixedly mounted on the seeding feeder B using the left and right one-touch fittings 32, 32, and the front part is fixed to the fertilizing hopper 1 using the left and right one-touch fittings 29, 29. . Furthermore,
In order to ensure the connection between the fertilizing hopper 1 and the seeding hopper 2, the hinge parts of the lids 45 and 46 are overlapped and a connecting pin is inserted from the side to connect the two. It is. The one-touch mounting tools 30, 31, 32, 29 have locking tools 65, 43, 44, which are arranged at corresponding positions, respectively.
42.

Furthermore, hopper shutters 40 and 39 are constructed below the fertilization hopper 1 and the seeding hopper 2, and by opening and closing the hopper shutters 40 and 39, the fertilization hopper 1 and the seeding hopper 2 are moved to the fertilization feeding device A. And when removed from the sowing and feeding device B, it can be made into a portable container.

In the above-mentioned overall configuration, the essential part of the present invention is that, as shown in FIGS. 2 to 7, the position of the fertilization and seeding frame, which is slidably tightened and fixed on the mounting beam 8, can be easily adjusted. It is structured so that it can be read.

As disclosed in FIGS. 2 and 3, half of a square hole is provided at the tip of the fertilization and seeding frame 58, and a mounting beam 8 made of a square pipe is fitted into this portion, and upper and lower tightening brackets 58a, It is tightened by 58b. The upper tightening bracket 58a is rotatably supported by a pivot shaft 58c, and the lower tightening bracket 58b is pivotally supported on the fertilizing/seeding frame 58 by a pivot shaft 58k.

The upper and lower tightening brackets 58a and 58b hold the mounting beam 8 and tighten the tightening handle 3.
It is fastened with 7 screws. Therefore, by rotating and loosening the tightening handle 37,
The fertilizing and sowing frame 58 can be adjusted and slid from side to side on the mounting beam 8.

The fertilizing and dispensing device A is fixed to the rear of the fertilizing and sowing frame 58, and the seeding and dispensing device B is fixed to the rear thereof. As described above, the seeds that are fed out from the sowing feeder B and fall from the sowing guide pipe 20 are sown at approximately the center of the fertilizing and sowing frame 58, so in order to obtain an accurate sowing position, it is necessary to 58
It is necessary to find the approximate center position of .

However, in the conventional configuration, even though the scale 8a is displayed, it is covered by the tightening bracket 58a, so only the position of its end can be read, and the operator can only read the position of the end of the scale 8a.
The center sowing position was calculated from the values on the scale 8a at both ends of the scale 8a.

Even when reading the position of the end of the tightening bracket 58a, if the same position is read when reading the position of the other fertilizing and sowing frame 58, the position of adjacent sowing rows can be accurately known, but it is difficult to know the position of the adjacent sowing row. In this case, the tractor is moved back and forth while planting, so in order to determine the steering position of the tractor in the next process, it is necessary to calculate the relationship with the position of the previous row that has already been planted. In this case, calculating the positions of the ends of the tightening bracket 58a would be a complicated task, and the sowing position would be set at scale 8.
It is necessary to check accurately on a. In order to achieve this object, the present invention has a reading hole 58m opened in the center of the tightening bracket 58a as shown in FIG.

In the embodiment of FIG. 4, the reading hole 58
m is an elliptical hole, but in the embodiments shown in FIGS. 5 to 7, the sowing position, that is, the lower end of the sowing guide pipe 20 is The width of the part corresponding to the center of the position is made narrower.

In the embodiment shown in FIG. 5, the reading hole 58d has a triangular shape, and in FIG.
In FIG. 7, the reading hole 58f is formed in the shape of a Saturn.

(f) Effects of the invention Since the invention is constructed as described above, it has the following effects.

First, although the scale was displayed in conventional fertilizing and seeding machines, it was covered by a tightening bracket, making it impossible to confirm the exact sowing position. Therefore, it was calculated by subtracting or adding half the width of the bracket.

In contrast, in the case of the present invention, by providing a reading hole in the center of the bracket and aligning the reading hole with the seeding position, the accurate seeding position can be easily confirmed.

Second, by accurately knowing the sowing position, when planting by reciprocating the tractor, even if the left and right sides of the fertilizer and seeding machine are switched, the row spacing can always be maintained at the same level when the tractor goes to the next stroke. This makes it easy to calculate the intrusion position.

[Brief explanation of the drawing]

Fig. 1 is a side view of the fertilizing and seeding machine of the present invention, Fig. 2 is a side view of the mounting beam 8 and the tightening bracket in a tightened state, Fig. 3 is a side view of the same in a loosened state for removal, and Fig. 4 1 is a plan view of the mounting beam 8 and the tightening bracket portion, and FIGS. 5, 6, and 7 are plan views showing other embodiments of the reading hole. A... Fertilizer feeding device, B... Seeding feeding device, 1... Fertilizing hopper, 2... Seeding hopper, 8... Mounting beam, 58... Fertilizing seeding frame, 58a, 58b... Tightening bracket, 5
8c, 58k... Pivot shaft, 58d, 58e, 58
f, 58m...reading hole.

Claims (1)

[Claims for Utility Model Registration] (1) In a structure in which the fertilization and seeding frame 58 is configured to be slidable left and right on the mounting beam 8 to adjust the fertilization and seeding position, a scale 8a is displayed on the top surface of the mounting beam 8. At the same time, a position adjustment device for a fertilizing and seeding machine is characterized in that a reading hole for the scale 8a is opened approximately at the center of the tightening bracket 58a of the fertilizing and seeding frame 58. (2) A position adjustment device for a fertilizing and seeding machine, characterized in that the width of the portion of the reading hole corresponding to the sowing position as set forth in claim 1 of the utility model registration is configured to be particularly narrow.