JPH0120803Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a mobile agricultural machine that can easily adjust the depth of the fertilization grooves, seeding grooves, etc. formed on the field surface in fertilization and seeding machines. This invention relates to a vertical adjustment device for a groove forming body.

[Problems to be solved by the prior art and the invention]

Generally, some of these types of mobile agricultural machines have grooves formed in the rice field, in which fertilization and seeding can be applied. In this type of work, it is necessary to work under optimal conditions that match the field conditions such as soil hardness, softness, and waterlogging, but in particular, the groove depth must be adjusted to ensure that the crops are This has a serious effect on growth. However, in the past, the groove forming bodies that form these grooves were directly fixed to the field sliding body etc. with bolts, etc., so it was difficult to make fine adjustments to adjust the depth of the grooves, whether by using a gauge or by adjusting the scale. Moreover, mud adheres to these, and tools such as spanners are required, making it difficult and troublesome to adjust the groove depth, and it is difficult to adjust the groove depth accurately during the work. etc. was virtually impossible.

Therefore, an adjusting bolt is provided protruding from the groove forming body, and the adjusting nut screwed into the adjusting nut is loosened, and the groove depth is adjusted by adjusting the nut position with the groove forming body free against the surface sliding body. An adjustment mechanism has been proposed, but if the adjustment nut is loosened, the groove forming body becomes unstable with respect to the surface sliding body and tends to shift, and it is difficult to directly adjust the groove formation body relative to the sliding surface of the surface sliding body. Therefore, there is a problem in that it is difficult to quickly and reliably adjust the groove depth with high precision.

[Means to solve the problem]

The present invention was devised in order to eliminate these drawbacks in view of the above-mentioned actual situation. The adjustment body is connected to the adjustment bolt in a threaded manner to adjust the vertical movement of the groove forming body, and is rotatably supported in a state where vertical movement is restricted. .

With this configuration, the present invention allows the groove depth of the groove forming body to be easily, reliably, and accurately adjusted using the sliding surface of the surface sliding body as a reference.

〔Example〕

Next, the present invention will be explained in more detail based on an embodiment shown in the drawings. In the drawings, reference numeral 1 denotes a traveling machine body, and a seeding machine 2 is installed at the rear of the traveling machine body 1 via a link mechanism 3 so as to be vertically movable. This seed sowing machine 2 sows rice seeds in a hopper 5 attached to a frame 4 by feeding them out in predetermined amounts from a feeding port 6 in synchronization with the movement of the main body 1 using a feeding mechanism (not shown). However, in addition to the above-mentioned hopper 4, the main field sliding body 7, soil cover plate 8, etc. are all constructed as before.

Reference numeral 9 denotes an auxiliary sliding body disposed on the side of the main field sliding body 7, and the auxiliary sliding body 9 is provided with a seeding groove forming body 10 in which the present invention is implemented. That is,
On the rear side of the auxiliary sliding body 9 formed in a shape, there is a notch hole 9 through which the seeding groove forming body 10 is vertically movable.
a is formed, and both lower ends of the guide body 11, which is shaped in rear view so as to straddle the notch hole 9a, are integrally fixed to the auxiliary sliding body 9.
The seeding groove forming body 10 is fitted into the bottom surface of the guide body 11 so as to be vertically slidable while being prevented from rotating around the vertical axis. Furthermore, guide body 1
A cylindrical body 12 is protruded from the upper surface of the cylindrical body 12. The cylindrical body 12 has a cylindrical body 13a welded to the lower side of the support part 13 which is bent into a substantially horizontal U-shape. is fitted and integrally tightened and fixed to the cylindrical body 12 by a tightening bolt 13b.

14 is an adjustment bolt;
The head is welded to the seeding groove forming body 10, and penetrates from the lower side via the guide body 11 and the cylindrical body 12 to the upper part of the support part 13. Reference numeral 15 denotes an adjusting body which is supported between the upper and lower surfaces of the supporting portion 13 in a pinched manner so that its vertical movement is restricted but it can freely rotate around the vertical axis.
is screwed into the adjustment bolt 14 passing through the support portion 13 in a threaded connection. Then, as will be described later, by rotating the adjusting body 15 around the axis of the adjusting bolt 14, the seeding groove forming body 1
0 is adapted to move up and down in accordance with the screw pitch while being guided by a guide body 11 relative to the auxiliary sliding body 9. Furthermore, there is a mark 1 on the top surface of the adjustment body 15.
5a is engraved.

In addition, 16 is a butterfly nut, and the butterfly nut 16
is threaded onto the adjustment bolt 14 to act as a lock nut for the adjustment body 15. Numeral 17 is a seed guide provided integrally at the rear end of the seeding groove forming body 10, and is formed to guide the fall of the seed rice fed out from the outlet 6 as described above.
In addition, an auxiliary sliding body 9 including a seeding groove forming body 10, etc.
are integrally attached and fixed to the left and right sides of the main field sliding body 7 via connecting rods 18.

In the embodiment of the present invention configured as described above, the rice seed fed out from the outlet 6 of the seed sowing machine 2 in synchronization with the traveling of the traveling machine body 1 falls along the seed rice guide 17 and reaches the sowing groove forming body 10. After the seeds are sown directly into the seeding trench formed by the soil covering plate 8
This allows for sowing in flooded soil in wet rice cultivation.

In such seeding work, it is necessary to adjust the seeding depth according to field conditions, etc.
The adjustment body 15 may be rotated while the wing nut 16 is loosened. That is, in the present invention, the seeding groove forming body 1
0 can adjust the vertical movement of the auxiliary sliding body 9 according to the screw pitch by rotating the adjusting body 15, so the depth of the seeding groove is different from that of the conventional seeding groove forming body Unlike directly tightened bolts, tools such as spanners are not required, and the work can be done simply by rotating the adjusting body 15. Therefore, even during the sowing process, it is extremely easy and convenient. The depth of the seeding furrow can be adjusted reliably and accurately.

Furthermore, the groove depth can be adjusted by rotating the adjusting body 15, which is supported with respect to the auxiliary sliding body 9 in a state in which its vertical movement is restricted, and can be adjusted up and down in accordance with the screw pitch. body 1
5 is always performed directly with the sliding surface of the auxiliary sliding body 9 as a reference, while being stably supported without shifting relative to the auxiliary sliding body 9. Therefore, highly accurate grooves can be formed. The depth can be easily and reliably adjusted even during field work.

Furthermore, the adjustment body 15 is supported above the guide body 11 that guides the seeding groove forming body 10 up and down, and is positioned at the center of the guide body 11 so as to be as far away from the rice field as possible and not directly facing the rice field. Since it is located at the crotch area, it can be expected to have the effect of preventing mud from adhering to it, which will improve reliability.

In this embodiment, since the adjustment body 15 is provided with a mark 15a, the depth of the seeding groove can be adjusted even more accurately by using the mark 15a. In addition, the seeding groove forming body 1
0 was attached to the auxiliary sliding body 9 on the side of the main sliding body 7, but the present invention is not limited to this.
It goes without saying that it may be attached to the main field sliding body 7 side.

[Effect]

In summary, since the present invention is constructed as described above, the groove forming body can be adjusted up and down based on the screw pitch by simply rotating the adjusting body, and as a result, it is different from the conventional method. The groove depth can be easily and reliably adjusted without the need for tools such as spanners. Moreover, the adjustment of the groove forming body is performed by rotating the adjustment body, which is supported in a state in which vertical movement is regulated relative to the Tamen sliding body. Direct groove depth adjustment is always performed using the sliding surface of the Tamen sliding body as a reference, while it remains stably supported and does not shift. As a result, accuracy including fine adjustment is improved. This makes it possible to easily and reliably adjust the groove depth to a high level even during field work.

[Brief explanation of the drawing]

The drawings show an embodiment of a vertical adjustment device for a groove forming body in a mobile agricultural machine according to the present invention, in which FIG. 1 is a schematic side view of a riding rice transplanter, FIG. 2 is a side view of a seeding machine, FIG. 3 is a partially sectional side view of the main parts, FIG. 4 is a rear view of the same, and FIG. 5 is a front view of the main parts. In the figure, 2 is a seeding machine, 5 is a seed hopper, 9 is an auxiliary sliding body, 10 is a seeding groove forming body, and 15 is a regulating body.

Claims (1)

[Claims for Utility Model Registration] 1. A surface sliding body in which a guide portion for vertically movably guiding the groove forming body is connected to an adjusting bolt on the side of the groove forming body in a screw connection relationship to move the groove forming body up and down. 1. A vertical adjustment device for a groove forming body in a mobile agricultural machine, characterized in that an adjustment body for adjusting the movement is rotatably supported in a state where vertical movement is restricted. 2. Utility model registration claim 1, characterized in that the adjustment body is rotatably supported by a support part provided above the guide part in a state where vertical movement is restricted. A vertical adjustment device for a groove forming body in a mobile agricultural machine.