JP2847854B2 - Multi-film laying method - Google Patents

Description

The present invention relates to a multi-film laying method.

(Prior Art and Problems to be Solved by the Invention) In the entire multi-film laying configuration in which the multi-film is covered over the entire surface of the ridge and the groove, the laying operation is performed while sequentially joining multi-films of a predetermined width. for,
The work is complicated, and especially when the seam of the multi-film is exposed on the upper surface of the ridge or the like, it is easily peeled off by wind pressure or the like, and soil covering is required.

The present invention solves such a defect, and uses the soil of the left and right ridge hem portions on one side and the other side to form a gap between the overlapped portion of the multi-film and the intermediate portion of the multi-film immediately adjacent thereto. Is stably embedded to lay a stable multi-film.

(Means for Solving the Problems) In the present invention, the overlapping portions 5 of the adjacent multi-films 3 and 4 which are coated over the upper surfaces of the ridge portion 1 and the groove portion 2 are combined with the ridge hem portion 6 on one side. The method for laying a multi-film is characterized in that it is crushed and buried while being folded into the ridge and the ridge 6a on the other side is crushed and buried while the middle part of the multi-film 3 or 4 is folded. And

(Operation) The multi-film 3 and 4 are coated while the multi-film laying device is propelled along the ridge portion 1 and the groove portion 2. The overlapping portion 5 at the lateral end of each of the multi-films 3 and 4 is folded into the soil at one ridge hem 6 on one side, and the middle portion of the multi-film 3 or 4 is formed on the ridge 6a on the other side. While being folded, the folded ridge hem portions 6 and 6a of the multi-films 3 and 4 are pressed down from the upper side and embedded and fixed.

(Effect of the Invention) As described above, while the multi-films 3 and 4 having a predetermined width are laid in the width direction, the overlapped portions 5 of the adjacent multi-films 3 and 4 are placed in the soil at the ridge hem 6 on one side. The film surface is fixed to the ridge portion 6a on the other side, because the intermediate part of the multi-film 3 or 4 is buried and fixed to the hem portion 6a on the other side. Since it is fixed tightly by both sides of the side ridge side portion 6a, the floating of the film during this period is less likely to occur due to wind or the like, so that the covering soil is not exposed on the upper surface of the multi-film 3, 4. Because it is not exposed to wind and rain, stable laying can be performed, and when the overlapping portion 5 is folded into the ridge hem 6 on one side or when the intermediate portion of the film is folded into the ridge 6a on the other side. There is little damage to the film, it is easy to fold, It is possible to reduce penetration and peeling.

(Example) In the illustrated example, the multi-film laying device is connected to the rear of the tractor body 7 together with the tilling device 8, and the ridge 1 and the groove 2 are formed on the soil surface tilled by the tilling device 8 in the traveling direction. It is configured to cover the multi-film while forming.

A cultivator 10 is provided in a machine frame 9 extending in the tillage width direction, and a groove bottom is provided in a ridge side surface in which left and right side plate portions 11 are formed in a vertical shape or a steeply inclined surface to form a groove portion 2 having a concave cross section. This burrower 10
At the rear, a film guide rod 12 that curves in an arc from the inside of the side plate 11 toward the bottom of the rear groove is provided.On the upper front side of the film guide rod 12, a multi-film having predetermined widths W ₁ and W ₂ is provided. Reels 13 and 14 are provided to support the rolls 3 and 4 in rolls. These reels 13 and 14 and, thereby polymerizing over appropriate width W _3.

Behind the film guide rod 12, a pressure reducing roll 15 for reducing pressure from the top surface of the ridge portion 1 formed between the left and right cultivator 10 is rotatably provided. A squeezing roller 16 for forming the ridge 1 is provided to form an inclined surface in the ridge 1 while suppressing the left and right shoulders of the ridge 1. Reference numeral 17 denotes a spring which resiliently presses the pressure-reducing wheel 16 to the soil surface at a predetermined pressure.

Tillage is performed by the tillage device 8 while the tractor body 7 is moved forward. The cultivated soil is provided with a ridge 1 and a groove 2
And molded. If the drawing ends of the multi-films 3 and 4 are fixed to the ridge ends, the multi-films 3 and 4 are sequentially drawn with the formation of the ridges 1 and the grooves 2 and the like, and these ridges 1 and 4 are pulled out. And a film guide rod 12 which covers the upper surface of the groove portion 2 and presses the overlapping portion 5 of the multi-films 3 and 4 and the intermediate portion of the film along the respective left and right ends on the groove bottom extension. You will be guided.

In this way, the side edges of each of the multi-films 3, 4 drawn from the film reels 13, 14 are superimposed, and are covered along the vertical ridge side surface, the ridge top surface, and the groove bottom surface, When the ridge 1 is pressed into a trapezoidal cross section by the pressure-reducing rollers 15 and 16, the film guide rod 12 is pressed.
The film portion guided to the corner between the ridge side surface and the groove bottom is folded in half by the soil of the ridge hem portion 6 that is pressed down and molded from the upper side, and embedded in the ridge hem portion 6. Become. In addition, since the overlapping portions 5 of the left and right multi-films 3 and 4 are located on one side of the half-folded portion,
It is difficult for the multi-films 3 and 4 to be peeled or pulled out in the polymerization section 5, and the stable laying state is maintained without the pressure of wind and rain. Seeding or transplantation is performed on the ridge 1.

Note that the multi-films 3 and 4 may have the same film width W ₁ and W ₂ , but the overlapping portions 5 of the multi-films 3 and 4 are formed into ridge hem portions 6 depending on the ridge width and groove width. Different widths may be used for matching.

In addition, the present invention forms the width and height of the ridge portion 1 extremely narrower and lower than the width and the like of the groove portion 2 so that the multi-film 3,
In the form of laying 4 on a flat soil surface, while forming the minimum ridge 1 necessary only for fixing the multi-films 3 and 4, the widthwise intermediate portions of the multi-films 3 and 4 Alternatively, the overlapping portion may be folded into the hem portion of the ridge to fix the pressure. In this case, the seeding or transplanting position is often the groove 2 rather than the ridge 1.

[Brief description of the drawings]

1 shows an embodiment of the present invention. FIG. 1 is a partial rear view, FIG. 2 is a plan view thereof, FIG. 3 is a side view, and FIG. 4 is an overall plan view. (Explanation of reference numerals) 1... Ridge portion 2... Groove portion 3... Multi-film 4... Multi-film 5... Overlapping portion 6...

Claims (1)

(57) [Claims] An overlapping portion of adjacent multi-films covering the upper surface of a ridge portion and a groove portion is buried by being pressed down while embedding the overlap portion of one of the multi-films into a ridge portion of one side, and embedded in the other side. A method of laying a multi-film, comprising crushing and embedding a middle portion of the multi-film into a skirt portion while folding the intermediate portion.