JPS6038082B2 - Ridge forming device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ridge forming device that is towed by a tractor or the like and is used to form ridges in cultivated land.

When forming ridges using mechanical force, generally a rotary pulled by a tractor is used to till the soil, and a ridge forming device placed behind the rotary is used to heave up the ridges after plowing and form ridges. The following method will be adopted. The ridge forming device is composed of a pair of two parts arranged symmetrically on both sides of the center line of the ridge to be formed, and when viewed from above, the ridge forming device has a closed introduction opening facing forward in a figure eight shape. It usually has a side plate part and a side plate part that mainly forms the ridge side. By the way, when forming the ridge, it is desirable to simultaneously press down the upper surface of the ridge to be formed using a pressing roller or the like, in order to improve the conditions as a planting bed.

Conventionally, when attempting to carry out the simultaneous compaction using a compacting roller, the compacting roller is pushed up above the side plate of the ridge forming device due to the gathered soil, and when it descends again, it hits the upper end of the side plate. There was a problem with vehicles running over them and damaging the side panels.

A similar accident also occurred when an aura was lowered between the side panels at the start of work. The present invention was made in view of the above circumstances, and it is an object of the present invention to provide a ridge forming device in which when the roller descends, the roller is guided well between the side plates, and therefore damage to the side plates is less likely to occur. be.

This will be explained in detail below. The ridge forming device according to the present invention is arranged opposite to each other across the center line of the ridge to be formed,
It is equipped with a pair of forming side plates that mainly form the side surfaces of the ridge, and a pressing roller that is placed between the side plates and presses down the upper surface of the ridge to be formed, and is pulled in a predetermined ridge forming direction. The ridge forming device is horizontally formed to form ridges, and the pressure roller is supported between slopes on both sides so as to be movable up and down, and at the upper end of the side plate.
It is characterized in that a guide piece bent outward with respect to the side plate main body is provided along the ridge forming direction. Figure 1 shows
There is a side view G showing the usage state of the embodiment of the ridge forming apparatus according to the present invention.

In the figure, a rotary 1 is connected to a power agricultural machine (not shown) such as a tractor, and a ridge forming device 2 is attached to the rear thereof. The power of rotary 1 is the power agricultural machine P
Transmitted from the TO shaft 3 via the universal joint 4, the chain (
A rotary rotating shaft (not shown) is rotated via a rotary shaft (not shown). The ridge forming device 2 is fixed to the chain cover 5 of the rotary 1. The ridge forming device 2 is formed symmetrically on both sides with the center line of the ridge in between, and includes a Sekiguchi introduction part 21 having a forming surface that opens forward in a figure eight shape when viewed from above; A side plate 22 is provided at the rear of the open introduction part 21 and presses down the side surface of the soil ridge formed by the closed introduction part 21 to form a predetermined inner ridge. In this example, the side plate 22 is screwed to the rear piece 23 of the entrance introduction part 21, but it may be made integrally with the entrance introduction part 21. A pressing roller 6 is arranged between the both side plates to press down the upper surface of the ridge 7 to be formed. in this way,
It is preferable to press the upper surface of the ridge with a pressure roller when forming the ridge, because the pressure forms a firm ridge that is difficult to collapse. In addition, it becomes an excellent product with less evaporation of water formed. The pressure roller 6 is
It is attached to a rear hitch 9 via a strut 8. The rotary 1, the ridge forming device 2, and the pressure roller 6 are connected as a whole to a power agricultural machine by an upper link 10 and a lower link 11, and are pulled to the left in the figure by the power agricultural machine. It goes without saying that this ridge forming device may be used alone and towed without being combined with a rotary. 2 and 3 are rear cross-sectional views of a conventional ridge forming device in a state of use when a pressing roller is combined with the pressing roller. In FIG. 6 is placed.

In this case, if the amount of soil gathered between the side plates increases for some reason while the work is in progress, the compaction roller 6 will be pushed up above the side plates, and due to the slight lateral deviation that may occur, the pressure roller 6 will move downward as shown in Figure 3. As shown in part A of the figure, it becomes raised above the side plate 22, damaging the side plate. FIG. 4 is a rear sectional view of the embodiment of the ridge forming apparatus according to the present invention in a state of use.

In the figure, a guide piece 22a is formed on the upper end of the side plate 22 of this ridge forming device. The guide piece 22a is bent outwardly and provided along the ridge direction with respect to the side plate main body 22b. That is, this guide piece 22a
As a result, the side plate 22a has an upwardly open shape, so that even if the pressure roller 6 rises during work and descends with some deviation laterally, the end of the pressure roller 6 will not touch the guide piece 2.
Since the pressure roller 6 comes into contact with the inner wall of 2a and descends according to the slope of the inner wall, the pressure roller 6 is successfully guided between the side plates. Therefore, it is less likely that the pressing roller 6 will ride on the side plate 22, and damage to the side plate can be effectively prevented. Also, due to some reason,
Even if the pressing roller 6 suddenly descends onto the side plate 22, the slope of the guide piece 22a generates a lateral component of the load, so there is little direct damage to the side plate. in this way,
In order to prevent damage to the side plate due to floating of the suppressing roller 6, it is preferable that the guide piece 22a be slanted outward from the direction perpendicular to the ground. On the other hand, if it is bent outward, the tolerance for lateral displacement of the pressing roller 6 increases accordingly, which is effective in preventing damage to the side plate.

The bending angle is determined by the size of the possible adjacency deviation, the guide piece 2
The optimum one should be selected by considering various conditions such as the height of 2a. In this sense, it is practically convenient to make the bending angle adjustable. FIGS. 5 and 6 are explanatory diagrams showing an example in which the bending angle of the guide piece 22a with respect to the side plate main body 220 is adjustable.

In these figures, the guide piece 22a is pivotally attached to the side plate main body 22b by a hinge 23. Further, the guide piece 22a has a rotatable arm 24 supported thereon, and a pin 25 for fixing the arm is implanted at the tip of the arm 24. On the other hand, a plurality of holes 27 are bored at different positions in the receiving plate 26 provided on the side plate main body 22b, and the pin 25 is inserted through these holes 27.
By marrying one of the guide pieces 22a
can be fixed to the side plate main body 22b. in this case,
By changing the hole 27 in which the pin 25 is attached, the bending angle of the guide piece 22a relative to the side plate main body 22b can be changed. This makes the ridge forming device even more practical, but the above detailed explanation shows one example of a method for making the bending angle adjustable, and it is possible to make it adjustable by other methods. Needless to say. If pressing is not performed using the pressing roller 6, the guide piece 22a is not bent relative to the side plate main body 22b, and both are placed on the same plane, as shown by the two-dot chain line in FIG. The height of the side plate increases by the amount of the guide piece, which is effective in preventing soil clods from collapsing to the outside during ridge formation.

As explained above, the present invention provides a pair of molding side plates which are bifurcated across the center line of the ridge to be formed and mainly form the side surfaces of the ridge, and a ridge 7 which is disposed between the side plates to form the ridge. The ridge forming device is configured to form a ridge by being pulled in a predetermined ridge forming direction, and includes a compression loaf for compressing the upper surface of the side plate, and a side plate main body is provided at the upper end of the side plate. Since this ridge forming device is characterized by having a guide piece bent outwardly along the forming direction, the positional relationship between the side plate and the pressing roller is stable, and the ridge can be finished well. It is.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an example of a ridge forming device in use, Figs. 2 and 3 are rear cross-sectional views of a conventional ridge forming device in use, and Figs. FIG. 6, which is a rear cross-sectional view of the embodiment of the ridge forming apparatus according to the invention in a state of use, is an explanatory view showing one example of a bending angle adjustment method. 2... Ridge forming device, 6... Pressure roller, 7
...Round, 22...Side plate, 22a...
- Guide piece, 22b... Main body. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1 A pair of forming side plates facing each other across the center line of the ridge to be formed and mainly forming the side surfaces of the ridge, and a pressing roller disposed between the side plates to press down the upper surface of the ridge to be formed. The ridge forming device is configured to form ridges by being pulled in a predetermined ridge forming direction, and the pressing roller is supported between both side plates so as to be movable up and down, A ridge forming device characterized in that a guide piece bent outward with respect to the side plate main body is provided at an upper end portion of the side plate along a ridge forming direction.