JPH04262718A - Apparatus for laying multi-film - Google Patents

Abstract

PURPOSE:To reduce floating of a multi-film at the respective ditch parts (B) when covering the soil surface where plural rows of levees (A) and ditches (B) are formed with the multi-film having a constant width. CONSTITUTION:A multi-film 1 covering plural rows of formed levees (A) and ditches (B) is pressed at the respective ditch parts (B) by press wheels 2, 3 and 4 and placed in close contact with the soil surface. The respective press wheels 2, 3 and 4 have a sponge 5 on their outer periphery and the middle part of the width of the multi-film 1 is pressed by the plural front and rear press wheels 2 and 3.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] This invention uses mulch film,
The present invention relates to a mulch film laying device that is laid on a soil surface in which ridges and grooves are formed.

0002

[Prior Art and Problems to be Solved by the Invention] When a soil surface with a plurality of ridges is covered with a mulch film of a constant width, the mulch film in the center is pulled in the left and right directions. As a result, the mulch film tends to float up from the groove surface, making it difficult to accurately lay the mulch film over the entire width of the ridge surface.

0003

[Means for Solving the Problems] The present invention covers a plurality of ridges A and grooves B with a mulch film 1 of a constant width, and at the same time covers the upper surface of each groove B of this mulch film 1 with a sponge 5 on the circumference. The mulch film laying device is configured such that a plurality of pressing wheels 2, 3, and 4 having the width of the mulch film are provided at the front and rear.

0004

[Operation and Effects of the Invention] When the mulch film 1 of a certain width is paid out to cover the soil surface forming a plurality of ridges A and grooves B, the grooves B in the approximately central part of the mulch film 1 are These ridges A and grooves B are pressed by a plurality of pressing rings 2 and 3, and a single pressing ring 4 is used to press the grooves B on both the left and right sides.
of each soil surface.

Since a sponge 5 is provided on the circumferential surface of each of these pressing rings 2, 3, 4, etc., the pressing of the pressing rings 4 on both the left and right sides causes the multi-layer contact between the pressing rings 2, 3, 4, etc. Even if friction occurs on one side of the film, the mulch film 1 will not be easily damaged.Moreover, since the central part is pressed by a plurality of pressing wheels 2 and 3 on the front and back, it will not easily deviate from side to side. When the mulch film 1 is pulled toward the center by pressing on the outer groove B surface by the left and right pressing wheels 4, it can be smoothly moved to the center groove B. It can be laid by applying tension evenly across the ridges A and grooves B on the left and right with the center at the center.

[0006]

[Example] In Figs. 1 to 4, a tilling device 6 is connected to the rear side of the tractor body to perform tilling in a predetermined width, and a plurality of soil cultivators 8 are attached to the rear side using a horizontal tool bar 7. ,
The tiller 8 cultivates the tilled soil surface at regular intervals to form ridges A and grooves B. A film laying device for laying the mulch film 1 is connected to the rear of the soil cultivator 8, and the mulch film 1 is laid while the tractor moves forward to plow and till the soil.

The film laying device has a film reel 9 that supports the mulch film 1 wound into a roll, facing the position where the film is to be laid, and presses the mulch film 1 pulled out from the film reel 9 from above to separate each mulch film 1 from above. It is mounted on a tool bar 12 and includes pressing wheels 2, 3, 4 for pressing against the surface of the groove B, and a driving device 11 for a pin 10 for pinning the multi-film 1 to each groove B.

Each pressing ring 2, 3, 4 is rotatable around a shaft 13, and a sponge 5 of an appropriate thickness is formed at least on the ground contact portion of the outer peripheral surface (FIG. 4), and a sponge 5 is formed on the upper surface of the multi-film 1. Press down onto the soil surface below. The pressing ring 4 that presses the left and right sides of the width of the multi-film 1 is single, but the pressing wheels 2 and 3 that press the central part are arranged at an appropriate interval C in the front-rear direction. Further, the longitudinal distance D between the front pressing ring 2 and the left and right pressing wheels 4 is also set appropriately.

Further, a driving device 11 for driving the pin 10 is disposed on a driving bar 14 at the rear end, and this driving bar 14 has the following features:
A pin supply gutter 17 that supplies pins 10 by raising and lowering hammers 16 that are vertically movable in conjunction with the machine frame by a crank mechanism 15 and hang down in opposition to each groove B section on the lower side.
The configuration is such that the pins 10 delivered from the supply gutter 17 are driven in one by one at the tip of the supply gutter 17.

The film reel 9, pressing wheel 2,
3, 4, and the area where the mulch film 1 is laid by the driving device 11, etc., are shifted in the left and right directions over the width of one row of furrow A and groove B, and the tillage and soil cultivation work is equivalent to one row width. It is set to take place in advance. As the tractor body advances, the soil surface tilled by the tiller 6 is tilled by the tiller 8, and a plurality of ridges A and grooves B are formed. The mulch film 1 drawn out from the reel 9 is covered over the upper surface of the formed ridges A and the grooves B, and is pressed against the grooves B by the pressing wheels 2, 3, and 4. After the mulch film 1 is pressed by the pressing ring 2 in the center, both left and right ends of the mulch film 1 are pressed by the pressing wheels 4 on both the left and right sides, so that the groove B and the ridge A in the center are pressed. After being closely attached, the mulch film 1 is tensioned over the ridges A and grooves B on both the left and right sides, so that the mulch film 1 in the grooves B in the center is less likely to float up from the soil surface. Moreover, when the pressure rolls 4 on both the left and right sides press the mulch film 1, if the mulch film 1 side tries to deviate,
Since the pressing surfaces of the pressing wheels 2, 3, and 4 are softly pressed by the sponge 5, the mulch film 1 can be easily moved and is less likely to be damaged. In addition, since the central part of the mulch film 1 is pressed by the front and rear pressing wheels 2 and 3, it is difficult to pull the mulch film 1 to the left or right, and the center position is not easily disturbed, allowing accurate laying of the mulch film 1. be able to.

[0011] In FIGS. 5 and 6, the points different from the above example are as follows.
The sides of the ridges A formed by the earther 8 are formed at a steep angle in a substantially vertical state, and the mulch film 1 is placed on the rear side of the earther 8.
A guide rod 18 is provided to guide the soil so as to be pressed along the groove corner E, which is the intersection of the foot of the ridge A and the groove B, and the center part of the bottom of the soil cultivator 8 in the center is connected to the other groove. A low floor portion 19 is formed slightly lower than B, and a pair of front and rear pressing wheels 2, 3 are inserted into the groove B formed by the low floor portion 19 to push and guide the upper surface of the central portion of the mulch film 1 downward. is provided, and the mulch film 1 is passed between each soil cultivator 8 and a guide rod 18, pressing wheels 2, 3, etc. facing the rear side of the soil culture vessel 8, and the mulch film 1 is guided to be pulled out rearward. Outer pressure ring 4
is provided behind the outer cultivator 8.

[0012] Also, a pressing wheel 20 for pressing the upper surface of the ridge A is provided behind the pressing wheel 3 in the center, and compresses the upper surface of the ridge A from the upper surface of the mulch film 1 covered with the mulch film 1. One part of the mulch film folded into the groove corner E is embedded and fixed in the soil at the foot of the groove. When covering the mulch film 1, by forming a groove bottom lower than the groove bottoms on both sides by the low floor part 19 in the center, the mulch film 1 to be covered in the center is drawn extra toward the center in advance. Therefore, the mulch film 1 after being laid is less likely to be pulled out from the groove corner E and come loose from the embedded fixation of the film.

[Brief explanation of the drawing]

The figure shows an embodiment of the invention.

FIG. 1 is a plan view partially showing a cross section in an operating state.

FIG. 2 is a side view of FIG. 1.

FIG. 3 is a rear view of FIG. 2;

FIG. 4 is a side view of the pressing ring.

FIG. 5 is a side sectional view showing a partial embodiment.

FIG. 6 is a rear sectional view showing a partial effect of FIG. 5;

[Explanation of symbols]

1 Multi-film 2 Pressing ring 3 Pressing ring 4 Pressing ring 5 Sponge A ridge B Groove

Claims (1)

[Claims] 1. A mulch film 1 of a constant width is coated over a plurality of ridges A and grooves B, and at the same time, the upper surface of each groove B of the mulch film 1 is covered with pressing wheels 2, 3, and 3 having a sponge 5 on the circumference. 4, and a plurality of pressing wheels 2 and 3 at the center of one width of the mulch film are provided at the front and rear.