JPH041796Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a mulch device for a tractor that covers a ridge with a mulch sheet along the longitudinal direction.

<Prior Art> Mulch devices are widely used that cover ridges with mulch sheets along the longitudinal direction to prevent frost damage and the like.

This mulch device needs to cover a ridge with a mulch sheet and then cover both sides of the sheet with soil to prevent the sheet from turning over, and for this purpose, a pair of left and right soil covering bodies is provided.

However, due to the unforeseen amount of soil for covering soil, the ridges and grooves are excavated. For example, in the mulch device proposed in Publication No. 54-20367, the trench digging blade is located in front of the front wheels. is equipped with.

In addition, in the above-mentioned multi-purpose device, the multi-sheet roll and a pair of left and right tread wheels are both mounted on a frame that does not move in the left-right direction. It was due to the skill of the person.

<Problems to be solved by the invention> In the above-mentioned mulch device, the groove-digging blade was in front of the wheel, so the guidance was poor and the tracing in the longitudinal direction of the furrow was inaccurate.

Moreover, this caused a change in the cutting amount at the ridge shoulder, which could lead to excessive cutting or insufficient cutting.

Furthermore, if the size of the existing ridge and the tread of the tractor are different, it depends on the driver's skill to match the center of the ridge with the center of the tractor. It was difficult.

The above-mentioned mulching device is intended for existing ridges, and performs a series of operations of tilling, ridge forming, and mulching in one process.For example, the mulching device disclosed in Japanese Patent Application Laid-Open No. 58-829 can be used as is. I couldn't.

The present invention aims to solve such problems.

<Means for solving the problems> The technical means taken by the present invention to solve the problems of the conventional multi-purpose machine is that the multi-machine frame 3 is connected to the tractor via a link mechanism 2 so as to be able to rise and fall freely.
A pair of left and right soil covering bodies 18 are provided on both sides of the ridge A, which are equipped with guide wheels 8 that roll on the ridge grooves in the ridge A, and cover the mulch sheet B1 along the longitudinal direction of the ridge A, and cover the covered sheet B1 with soil. In the tractor mulch device 1 equipped with the above, both shoulders A1 of the furrow A are excavated behind the guide wheels 8, and the excavated soil A2 is guided rearward and outward for covering with the soil covering body 18. A pair of left and right earth excavators 11 is provided, and the earth excavators 11 are characterized by having a blade portion for excavating both shoulder portions A1 of the ridge A and a copying portion that imitates both shoulder portions A1. It is.

<Operation> When the mulch device 1 is operated along the longitudinal direction of the ridge A by a tractor, the pair of left and right guide wheels 8, 8 lead on the ridge, so that the guide wheels follow the ridge in the longitudinal direction. Excavation body 11,1 behind 8,8
1, both shoulders A1 and A1 of the ridge are excavated.

The earth excavation by this earth excavation body 11 is carried out at both ridge shoulders A1,
In addition to excavating the soil A1, the both shoulders A1 of the ridge are also copied by the excavating body 11 at the same time.

The excavated soil A2 is guided backward and outward, while the multi-sheet B1 is guided by a pair of left and right treading wheels 1.
Both sides are stepped on by rollers 7 and 17, and the rollers are sequentially fed out from roll B and placed over the ridge.

Both sides of the sheet B1 placed over the ridge surface are covered with the above-mentioned excavated soil A2 by the soil covering bodies 18, 18, and the mulch sheet B1 along the longitudinal direction of the ridge A is then covered with the excavated soil A2. Covering work is done.

<Example> Embodiments of the present invention will be described in detail with reference to the drawings.

The multi-purpose apparatus 1 is attached to a tractor (not shown) to be pulled and moved up and down via a three-point link mechanism 2.

Multi machine frame 3 has link mechanism 2 and top link 4
It consists of a tool bar having a top mast 5 that connects the top mast 5 and a bracket 7 that connects the lower link 6. Guide wheels 8, 8 that roll on ridges are provided on both sides of the multi-machine frame 3.

Each of the guide wheels 8, 8 has a box-shaped bracket 9 slidably attached to the tool bar, a wheel support rod 10 attached to the bracket 9 so as to be adjustable in height, and a caster structure on the support rod 10 for rolling. It is equipped to move freely.

Excavation bodies 1 are placed behind each of the guide wheels 8, 8.
1 and 11 are provided.

The excavating bodies 11, 11 are attached to the multi-machine frame 3 side via a support rod 11A and a wheel support rod 10 in this example. , both ridge shoulders A1, A
1, and the excavated soil A2 and A2 are guided backward and outward as indicated by arrows X and X in FIG.

Here, the pair of left and right earth excavators 11 are formed into bowl-shaped disks and have an earth excavating blade part on the outer periphery, and the bowl part is used as a copying part.

The multi-sheet B1 is a roll B, and is horizontally suspended perpendicularly to the longitudinal direction of the ridge A so as to be freely rollable on the mounting frame 12.

The mounting frame 12 has a horizontal bar structure, and has a protruding rod 13 at the center of the ridge width as shown in FIG.
3 is inserted into the bracket 14 of the multi-machine frame 3,
They are rotatably connected by a vertical shaft 15.

Note that a restrictor 16 is attached to the bracket 14 to adjust the amount of left and right rotation of the bolt structure.

The multi-sheet roll B is replaceable, and in order to feed out the sheet B1 from this roll, a pair of left and right tread wheels 17, 17 are provided.
A pair of left and right earth covering bodies 18, 18 are provided behind the earth cover 17.

The tread wheels 17, 17 are attached to the support rod 19 with a stay 20.
The upper part of the stay 20 is vertically movably connected with a pin 21, and is provided on the stay 20 together with the soil covering body 18, and is biased in the direction of contact with the ground by a spring (not shown).

The support rod 19 is slidably and fixedly attached to the roll mounting frame 12, and is extended in a V-shape that widens at the rear as shown in FIG. A rod 22 is provided.

Additionally, a roll-shaped sheet guide 23 is provided on the mounting frame 12 at the center of the ridge width.

The soil covering body 19 is for guiding the excavated soil A2 scraped by the excavating body 11 inward as shown by the arrow X1 in FIG. 2, and is for covering both sides of the sheet B1.

Therefore, in addition to the illustrated disc-shaped earth covering body, a shoe-shaped earth covering body may also be used.

<Effects of the invention> In the present invention, the pair of left and right guide wheels 8, 8 are provided in advance of the multi-frame machine frame 3, so that even when the tractor moves in the longitudinal direction across the ridge A, the guide wheels 8, 8 is reliable, and even if the tread center and the ridge center do not coincide, the ridge can be accurately followed in the longitudinal direction.

In addition, earth excavation bodies 11, 1 are provided behind the guide wheels 8, 8.
1, both shoulders A1 after being accurately modeled
The amount of soil excavated is stable, there is little variation in the size of the excavated soil, and the ridge A is less likely to collapse.

In addition, the pair of left and right excavated bodies 11 have both ridge shoulder portions A1.
Since it has a blade part for scraping and a copying part that copies both ridge shoulder parts A1, the front part is copied along the existing ridge A by the guide wheel 8, and the rear part is copied by the excavating body 11. Here, the center of the existing ridge A and the center of the tractor can be aligned to ensure multi-purpose work with ease.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view, FIG. 2 is a plan view, FIG. 3 is a detailed plan view of the connecting portion, and FIG. 4 is a rear view showing the soil excavation state. 1...Multi device, 2...Link mechanism, 3...
Multi-machine frame, 8... Guide wheel, 11... Earth excavation body,
12...Multi-sheet roll mounting frame, 15...Vertical shaft, 17...Treading wheel, 18...Soil covering body.

Claims (1)

[Claims for Utility Model Registration] A multi-frame machine frame 3 connected to a tractor via a link mechanism 2 so as to be able to rise and fall is provided with guide wheels 8 on both sides of the multi-frame machine frame 3 that roll on the ridges in the existing ridge A, and the guide wheels 8 roll on the ridges in the existing ridge A. A mulch device 1 for a tractor comprising a pair of left and right soil covering bodies 18 that cover a mulch sheet B1 along the direction and cover the covered sheet B1 with soil.
At the rear of the guide wheel 8, there is a pair of left and right earth cutting bodies 11 that excavate both shoulders A1 of the ridge A and guide the earth excavated earth A2 backward and outward for covering with the earth covering body 18. A mulching device for a tractor, characterized in that the earth cutting body 11 has a blade portion for excavating both shoulder portions A1 of a ridge A, and a tracing portion for following both shoulder portions A1.