JPH0142967Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improvement of a rotary with a ridge former, in which a former is attached immediately after the tilling section, and it is possible to change the size of the ridge width shape, and to improve the ridge elevation surface (furrow shoulder). It is an object of the present invention to enable the slope to be freely changed in response to a change in the ridge width direction or independently.

Rotaries are known in which a furrow former is installed immediately after the rotary tiller.

In the conventional ridge forming machine, the side forming plate and the top forming plate are constructed inseparably. Therefore, the ridge width can be changed by separately replacing the ridge forming machine, which is extremely troublesome. Ta.

The present invention was devised in view of the above, and includes a rotary machine frame 14 in which a pair of left and right ridge formers 22 disposed behind the rotary tiller section 8 are attached to the rotary machine frame 14. Forming device mounts 23 are attached to both left and right ends so as to be slidable and fixed in the left and right direction, and ridge formers 22 are respectively attached to the lower part of each forming device mount 23. It is composed of a soil introduction part 27 on the 23 side and a side forming plate 28 attached to the soil introduction part 27.
It is characterized in that it is rotatably and fixedly supported around a support shaft 29 in the front-rear direction at the lower end.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In FIGS. 1 to 3, reference numeral 1 denotes a rotary rotary, which is connected to a tractor 3 via a three-point linkage mechanism 2 so as to be able to rise and fall.

Reference numeral 4 denotes a gear box having an input shaft, and a transmission case 5 containing a wrapped transmission body is disposed below the box 4.

A tilling section 8 is rotatably provided in the lower part of the transmission case 5, and the tilling section 8 is composed of a pawl shaft 6 and a plurality of tilling pawls 7.

Reference numeral 9 denotes a pair of left and right support arms, both of which have a cylindrical structure, and a side tilling cover 10 is attached to the outer end.

Reference numeral 11 denotes a lower link mounting bracket, which is fixed in the middle of each arm 9. 12 is a top mast, 13 is a support link, and these constitute a rotary machine frame 14.

15 is a tilling cover device, which includes a side tilling cover 10 and a fixed front cover 16 connected thereto;
It consists of a rear cover 18 connected to the cover 16 via a hinge 17, and covers the tilling section 8.

Reference numeral 19 denotes a tail wheel support whose front end is pivoted to the bracket 11.
2 are connected by a telescopic connector 20.

Reference numeral 21 denotes a pair of left and right elastic support mechanisms, which connect the support 19 and the rear cover 18 and urge the cover 18 in the direction of contact with the ground.

22 is a shaping machine, which is installed immediately after the tilling section 8. In this embodiment, it is attached by a pair of fixtures 23 consisting of an insertion rod 24 and a stay 26.

That is, the insertion rod 24 is inserted into the support arm 9 so that it can be slid and fixed with the bolt 25, and the soil introduction part 27 is attached to the stay 26 whose side surface is arched.
It is attached by attaching the side molding plate 28.

The soil introducing portion 27 has a top plate 27A, and a molding plate 28 is rotatably fixed to the soil introducing portion 27 about an axis in the front-rear direction.

In this embodiment, the lower part of the front plate 28A of the forming plate 28 is rotatably attached to the front plate 28A by a support shaft 29 in the front-rear direction, and an arc-shaped elongated hole 30 centered on the support shaft 29 is inserted into the soil introducing plate 27 or the front plate. 28A, and by screwing bolts and nuts 31 into the elongated holes 30 so as to be fastened and loosened, the molded plate 28 is attached so as to be rotatable and fixed around the longitudinal axis.

Additionally, reference numeral 32 is a cutting claw, which is attached to the lower front surface of the soil introducing portion 27. That is, as shown in FIG. 4, the mounting bolt 33 of the pawl 32 is inserted into the elongated hole 34 in the vertical direction, and the collar and nut 35 are screwed together for installation.

Note that the cover 18 is mounted between the upper ends of the pair of left and right molded plates 28. Further, the drive system of the rotary 1 may be a center drive type as shown in the drawings or a side drive type not shown in the drawings. Alternatively, the support shaft 29 may be provided in the upper part, and the nut and the elongated holes 30, 31 may be provided in the lower part.

Next, the effect will be explained.

When tilling work is carried out by driving the tilling section 8 of the rotary 1 connected to the tractor 3 in the direction of the arrow in FIG. ,,Round A is created.

During the work, the cover 18 is pressed by the ball support mechanism 21, so it can escape the excess soil,
Further, the cutting claw 32 is finished by cutting the base of the ridge.

To change the ridge width, loosen the bolt 25 and slide the insertion rod 24 inside the arm 9 in the left and right directions shown by the arrows in Figures 2 and 3. After sliding, tighten the bolt 25. Fixed.

If you want to change the slope of the ridge surface, loosen the bolt nut 31, rotate the molded plate 28 along the elongated hole 30 about the support shaft 29 in the direction of the arrow in FIG. 2, and then tighten the bolt nut 31 again. All you have to do is raise it.

Moreover, when the cutting claw 32 becomes worn out, it is sufficient to loosen the nut 35 and allow it to advance along the elongated hole 34.

This invention is carried out as described above,
The pair of left and right molding plates of the ridge forming device installed at the rear of the tilling section are attached to the rotary machine frame using attachments so that they can slide and be fixed, so the ridge width can be changed to large or small sizes, making it easier to grow crops. Matching ridges can be formed. In addition, since the molding plate can be rotated and fixed around the support axis in the front-rear direction, the ridge elevation surface can be sloped to match the crop, and since both the ridge width and the ridge elevation surface can be changed, the ridge has the advantage of being able to be shaped into a shape that best suits the crop. Furthermore, the molding plate is supported by the soil introduction part attached to the molding machine mount so that it can be rotated and fixed around the front-back axis located at its lower end, so when adjusting the rotation of the molding plate, In addition, the height of the lower end side does not vary greatly with respect to the soil introduction part, and therefore, the finish of the groove part between the ridges is also good.

[Brief explanation of the drawing]

1 is a side view of the embodiment of the present invention, FIG. 2 is an enlarged rear view thereof, FIG. 3 is a partially omitted plan view of the same, and FIG. 4 is a partially enlarged sectional view of FIG. 1. 1... Rotary, 8... Cultivating section, 14... Rotary machine frame, 22... Forming machine, 28... Forming plate, 29... Support shaft, 30... Elongated hole, 31... Bolt nut.

Claims (1)

[Scope of utility model registration request] In the rotary 1, in which a pair of left and right ridge formers 22 disposed behind the rotary tilling section 8 are attached to the rotary machine frame 14, the former ridge formers 23 are slidable in the left-right direction at both left and right ends of the rotary machine frame 14. A ridge former 22 is attached to the lower part of each former holder 23, and this ridge former 22 is attached to a soil introduction part 27 on the side of the former holder 23, and a side molding plate 28, and the side molding plate 28 is rotatably supported around a support shaft 29 in the front-rear direction at the lower end with respect to the soil introduction part 27. Rotary with equipment.