JP3088074U - Row cover - Google Patents

Abstract

(57) [Summary] [Problem] To develop a low-cost and durable ridge cover that can be easily constructed on existing ridges. SOLUTION: An upper plate 1 composed of a horizontal part 2 and an inclined part 3 covering an upper part of a ridge 8, a lower plate 4 composed of an inclined part 5 covering a lower part of a slope 9 and an insertion part 6 buried under a slope 10 Between the fixture 1
The width of the flat plate 7 can be adjusted in accordance with the length of the slope 9 at the time of construction by using the ridge cover having a structure in which the flat plate 7 is incorporated through the 2 so that the entire cross section of the slope 9 can be covered. By using a synthetic resin having a thickness of about 12 mm for each of the plates 1, 4, and 7, construction depending on human power is possible, and a small-scale farmhouse can introduce the present invention.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 TECHNICAL FIELD The present invention relates to a ridge cover used to cover a ridge formed on a boundary of a paddy field or the like.

[0002]

[Prior art]

 The ridges formed at the boundaries of paddy fields, etc. are formed by trapezoidal embankments, have the function of storing water in paddy fields, and have many roles, such as being used as passages for agricultural work. Measures have been taken to prevent erosion by embankment due to wind and rain, for example, by embedding plants to increase the strength of the ridges formed by the embankment, but deformation over time is inevitable. In addition, small animals such as moles may dig holes, causing sinking and water leakage. In addition, if weeds grow on the ridges, pests such as stink bugs will proliferate and damage crops, so weeding work and pesticide spraying are required.

[0003]

[Problems to be solved by the invention]

 Embankment ridges required large-scale maintenance every year, and frequent mowing was necessary, especially in the summer. However, it is becoming increasingly difficult to manage the ridges due to factors such as a decrease in the number of farmers and the aging of the population.Concrete ridges may be laid to solve this problem, but large costs are required. It is difficult for small-scale farmers to do this alone.

[0004] Therefore, a ridge cover that covers the surface of an existing ridge and has an effect of preventing weathering and suppressing the growth of weeds has been developed. For example, some ridge covers use sheets or boards of nylon or the like. Although they can be constructed relatively easily and at low cost, they are easily damaged during farming and are difficult to use for several years. The cross-sectional shape of the ridge is generally trapezoidal, but the height and width are not constant.Moreover, paddy fields created on slopes such as fan-shaped fields have different lengths on the left and right slopes. In many cases, these simple ridge covers cannot be used.

The present invention has been developed on the basis of such circumstances, and aims to provide a low-cost, highly durable furrow cover that can be easily constructed on existing furrows.

[0006]

[Means for Solving the Problems]

 The ridge cover according to the present invention is a method in which the upper surface and the slope of the ridge are continuously covered with a plate, and the upper plate including a horizontal portion and an inclined portion that covers the upper portion of the ridge, and the slope, as in the invention of claim 1. A flat plate is installed via a fixture between the inclined part covering the lower part and the lower plate consisting of the insertion part buried under the butt. The upper plate that covers the upper part of the ridge is a flat plate bent and consists of two parts, a horizontal part that covers the horizontal surface of the ridge and an inclined part that covers the upper part of the slope. The intersection angle is about 135 degrees. The lower plate, which covers the lower part of the ridge, is a flat plate bent like the upper plate, and is composed of two surfaces, the insertion part and the inclined part, and the intersection angle is the same. The insertion part is buried in the ground below the border between the ridge and the field, called the Hoshiri, and the slope covers the slope around the Hoshiri. Although the bending angle of the upper plate and the lower plate is set to 135 degrees, it can be changed according to actual conditions at the time of manufacturing.

[0007] In many cases, the ridge made of embankment has a trapezoidal cross-sectional shape and the slope of the slope is about 45 degrees. Therefore, the upper plate can cover the horizontal plane and the upper part of the slope simply by placing it on the upper part of the ridge, and the lower part can be buried in the ground under the slope, and the lower part can be covered by the slope. Can be covered. In the case of a small ridge, the entire cross section of the ridge will be covered when the upper and lower boards are laid on the left and right sides.

The upper plate and the lower plate have the above-mentioned shape to cover the cross section of the ridge, but the length of the ridge with respect to the longitudinal direction is set to about 2 m in consideration of being portable by hand. Therefore, when laying the ridge cover of the present invention over the entire length of the ridge, many upper and lower plates will be arranged. The material used for the upper plate is not limited, but since it is used manually and used for several years outdoors, a lightweight and durable synthetic resin is optimal. It is also possible to use polypropylene or the like. When this polypropylene or the like is used as a raw material, it can be reused even after it has completed its role as a ridge cover, and there is no problem with the disposal method. The upper and lower boards are about 12 mm thick and are reinforced by arranging a plurality of ribs of about 1 cm width at equal intervals on the back side (the side that contacts the ridge surface). There is little risk of breakage if these accidentally come into contact, as well as the traffic of the machinery.

[0009] The size of the ridges is not standardized, whereas the upper and lower plates are manufactured in a factory-standardized manner. Therefore, only the upper and lower plates are used as ridges as described above. When laid, it is extremely unlikely that the upper and lower boards will be adjacent without gaps. Therefore, when the upper and lower boards are far apart and the slope in this section is not covered, it is necessary to use a new flat board to fill the gap. This flat plate is literally a flat plate, and its thickness and material in the longitudinal direction of the ridge are the same as those of the upper plate. However, the width determined according to the gap will be cut off on site to adjust to the individual construction site. If the flat plate is made of synthetic resin, it can be handled manually using a saw or the like, and the use of electric tools will increase efficiency. The flat plate cut to the required width is sandwiched between the upper plate and the lower plate. At this stage, the entire cross section of the ridge is covered with the ridge cover of the present invention.

[0010] Although the entire surface of the ridge can be covered by the upper plate, the lower plate and the flat plate, simply arranging them makes it easy to move due to strong winds or the passage of agricultural machinery. Is necessary. The method of driving piles into the soil may not be able to ensure stability depending on the soil characteristics and topography, and the construction work will increase, so the upper plate etc. will be integrated via fixtures. As in the invention according to claim 2, the fixture has two grooves facing each other, and has a structure for accommodating the ends of the upper plate, the lower plate, and the flat plate. The work is completed just by inserting it.

The width of the groove provided in the fixture is equal to the thickness of the plate, and can be inserted manually, and generates a certain amount of frictional force. The depth of the groove is about 5 cm. When inserting the upper plate etc., it is not always necessary to reach the bottom of the groove. Even if it is about half, there is no problem. Undulations are absorbed. The fixing tool can be made of a bent metal plate or a molded resin product, but stainless steel is optimal because it requires sufficient strength and durability. Fixtures can be arranged at regular intervals, or they can be arranged continuously in a strip shape. To make it easier to absorb the undulations of the ridges, fixtures with a length of about 5 cm (longitudinal direction of the ridges) should be placed at equal intervals. In many cases, they are arranged at

When connecting an upper plate, a flat plate, or a lower plate with a fixing device, only the end is inserted into the fixing device and no bolt is used, but only a downward force such as a boundary between the flat plate and the lower plate acts. Because the part does not move in the direction away from the fixture, it can maintain a stable state just by being inserted. However, since the force may act in the direction in which the left and right upper plates face each other and between the ridge covers that are adjacent to each other in the longitudinal direction of the ridge in the longitudinal direction of the ridge, the fixing device according to claim 2 should be used. Can not. Therefore, where the upper plate faces the center of the ridge, a hole is provided in advance at the end of the upper plate, and a joint connecting both holes is driven in and connected. Also, between the furrow covers adjacent in the longitudinal direction of the furrow, a circular protrusion is provided at one end of the upper plate, etc., and a receiving hole for receiving the protrusion is provided at the other end, and both ends are connected. Lay about 5 cm, connect the protrusions and receiving holes.

Although the ridge cover of the present invention has sufficient strength, the possibility of contact with a rice transplanter or the like is extremely high, and measures must be taken against these impacts. Therefore, as in the invention according to claim 3, at least one of the upper plate, the lower plate and the side plate is made of a material obtained by mixing powdered rubber with a synthetic resin, thereby further improving the durability. I do. By mixing the powdered rubber with the synthetic resin, the external impact is absorbed by the rubber, which reduces the load acting on the synthetic resin and prevents damage before it occurs. In addition, the appearance of the ridge cover becomes black due to the addition of rubber, and light rays such as ultraviolet rays are absorbed without being reflected.

[0014]

[Embodiment of the invention]

 FIG. 1 is a perspective view showing the structure of the upper plate 1, the lower plate 4, and the flat plate 7, and the plates 1, 4, 7 are drawn in the same arrangement as when actually laid on the ridge 8. The depth direction matches the longitudinal direction of the ridge 8. The upper plate 1 is bent substantially at the center and is composed of two surfaces of a horizontal portion 2 and an inclined portion 3, and their intersection angle is 135 degrees. The lower plate 4 also has an intersection angle of two surfaces of the inclined portion 5 and the insertion portion 6. At 135 degrees, the flat plate 7 is literally a flat plate. The upper plate 1 and the lower plate 4 are bent at an angle of 135 ° to match the shape of the ridge 8, but the actual inclination angle of the slope 9 of the ridge 8 is not limited to 45 °. In some cases, 1, 4 and 7 do not adhere to the ridge 8. In that case, a leveling work is required in advance, but a certain amount of clearance is allowed by making each of the plates 1, 4, 7 rigid. Ribs 14 are provided at regular intervals on the back surfaces of the upper plate 1 and the lower plate 4, and the ribs 14 are similarly provided at the bent portions.

The upper plate 1, the lower plate 4, and the flat plate 7 are made of polypropylene recycled from a used packaging container or the like and contain powdery rubber inside, and are resistant to impact from agricultural equipment. In addition, since it becomes black, it easily absorbs light rays such as ultraviolet rays. The thickness of each is 12 mm, the length (in the depth direction) of the upper plate 1 and the lower plate 4 is 2000 mm, the horizontal portion 2 of the upper plate 1 and the inclined portion 5 of the lower plate 4 are 200 mm, and the inclination of the upper plate 1 is 200 mm. The insertion part 6 between the part 3 and the lower plate 4 is 150 mm. The upper plate 1 and the lower plate 4 of this size weigh about 10 kg and can be carried by human power. The flat plate 7 has a length of 900 mm and a width of 450 mm.

In order to connect the ridge cover adjacent to the ridge 8 in the longitudinal direction, a receiving hole 16 and a protruding portion 17 shown in FIG. The receiving holes 16 have a circular cross section and penetrate the front and back, and are provided at three locations near the end of the upper plate 1, and the projecting portions 17 are provided on the opposite side of the receiving holes 16. FIG. 2A shows the upper plate 1 viewed from the front side, and FIG. 2B shows the upper plate 1 viewed from the back side. Ribs 14 for reinforcement are also formed on the back side. When laying on the ridge 8, the protrusion 17 of the adjacent upper plate 1 is fitted into the receiving hole 16 of one upper plate 1 and fixed. FIG. 2 shows the upper plate 1, but the lower plate 4 also has a receiving hole 16 and a protruding portion 17 and is similarly fixed.

In order to connect the upper plate 1 and the flat plate 7 and the flat plate 7 and the lower plate 4 which are adjacent to each other in the same ridge 8 cross section, a fixture 12 shown in FIG. 3 is used. The fixture 12 shown in FIG. 3 (a) is manufactured by bending a stainless steel plate having a thickness of 2 mm, and has grooves 50 having a depth of about 50 mm provided at two locations, facing each other, and having a length of 50 mm and an upper length of 50 mm. It is arranged intermittently at the boundary between plate 1 and plate 7. Each of the plates 1, 4, and 7 is inserted only into the groove 13 of the fixture 12 and is not fixed with a bolt or the like. No problem.

FIG. 3B shows a fixture 12 having a shape different from that of FIG. 3A, and has two grooves 13 in a shape like “H” of an alphabet. For this reason, it performs the same function as (a), but it is difficult to manufacture this shape only by bending and it requires cutting, which increases the cost, but improves the aesthetics because there are no steps.

FIG. 4 is a perspective view showing a state in which the ridge cover of the present invention is actually laid, and also shows a cross-sectional shape of the ridge 8. Note that the paddy fields 11 on both sides are formed on a slope and have a step on the water surface. The upper plate 1 covers the horizontal surface of the ridge 8 and the upper side of the slope 9 and is laid on both left and right sides. The lower plate 4 has the insertion part 6 buried under the ground directly below the Hoshiri 10 to prevent water from entering the foundation of the ridge 8 and small animals to make burrows, etc., and also to prevent soil loss. You can also. Moreover, the insertion portion 6 does not enter the underground on the side of the paddy field 11 and does not hinder the growth of roots such as rice. Prior to laying the ridge cover, it is necessary to remove large irregularities on the surface of the ridge 8. If the angle of the slope 9 differs greatly from 45 degrees, the hill may be partially excavated. However, as long as there is a gap between the ridge 8 and the ridge cover locally, the upper plate 1 and the like have a certain strength, and can be laid without any trouble.

The slope 9 on the left side of the figure is fixed on both sides by a fixture 12 because there is no gap between the upper plate 1 and the lower plate 4. Since the load acting on the upper plate 1 is transmitted to the lower plate 4 via the fixture 12 and finally dispersed on the ground, no problem occurs even for heavy objects such as agricultural machines. On the other hand, since the right side slope 9 cannot be entirely covered with only the upper plate 1 and the lower plate 4, the flat plate 7 is used and is cut into a width corresponding to the slope 9 in advance. Note that the fixture 12 is used in the same manner as the left slope 9.

Since the fixture 12 cannot be used in the center of the ridge 8 where the horizontal portions 2 of the upper plate 1 face each other, a joint 15 in which a rod made of stainless steel or the like is bent into the letter “U” of the alphabet is used. I do. The upper plate 1 is preliminarily drilled for mounting the joint 15, and when laying, the work is completed only by driving. The longitudinal direction of the ridge 8 is fixed by a combination of the receiving hole 16 and the protruding portion 17 shown in FIG.

In the ridge 8 of FIG. 4, the flat plate 7 is used only for the right slope 9, but in the case of the larger ridge 8, the flat plate 7 is used for the upper surface of the ridge 8 and the slopes 9 on both sides. In some cases, if the width of one flat plate is not enough, two or more flat plates may be arranged.

[0023]

[Effect of the invention]

 According to the invention of claim 1, since the end of the lower plate is buried in the ground, the stability is excellent, and the shape can be freely changed at the time of construction according to the length of the slope, so that any method can be used. It can be used in ridges, and no special equipment or technology is required for laying.Since it is possible for individuals other than specialists to carry out construction depending on human power, even small-scale farmers can introduce the present invention to manage ridges. Can be streamlined.

According to the invention of claim 2, since the upper plate and the like can be easily fixed, the workability at the time of construction is excellent, the tolerance for dimensional errors is wide, and the upper plate is constructed after the construction. It does not come off.

According to the invention of claim 3, since the elasticity of the ridge cover is improved, there is little possibility of breakage even when an impact load or the like is applied, and the black appearance makes it easy to absorb rays such as ultraviolet rays and reflected light. Therefore, the amount of solar radiation received during farm work is reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the shapes of an upper plate, a lower plate, and a flat plate, where each plate is drawn in the same arrangement as when actually laid on a ridge.

FIGS. 2A and 2B are perspective views showing a mechanism for connecting upper plates adjacent to each other in the longitudinal direction of a ridge, where FIG. 2A is a view of the upper plate from the front side and FIG. Is what I saw.

FIGS. 3A and 3B are perspective views showing examples of the shape of a fixture for connecting an upper plate and a flat plate, wherein FIG. 3A is manufactured by bending a stainless steel plate, and FIG. It is cut out by cutting.

FIG. 4 is a perspective view showing a state in which a ridge cover of the present invention is laid on a ridge that partitions a paddy field provided on a slope.

[Explanation of symbols]

 Reference Signs List 1 upper plate 2 horizontal portion 3 inclined portion (upper plate side) 4 lower plate 5 inclined portion (lower plate side) 6 insertion portion 7 flat plate 8 ridge 9 slope 10 slope end 11 paddy field 12 fixing tool 13 groove 14 rib 15 joint 16 Receiving hole 17 Projection

Claims (3)

[Utility model registration claims] An upper plate (1) comprising a horizontal part (2) covering an upper part of a ridge (8) and an inclined part (3), an inclined part (5) covering a lower part of a slope (9) and a butt (10). ) Insert part to be buried under (6)
A ridge cover into which a flat plate (7) can be incorporated via a fixture (12) between the lower plate (4) and the lower plate (4). 2. The fixture (12) is provided with two opposing grooves (13) to accommodate the ends of the upper plate (1), the lower plate (4) and the flat plate (7). The ridge cover according to claim 1, characterized in that: 3. The method according to claim 1, wherein at least one of the upper plate (1), the lower plate (4) and the flat plate (7) is made of a material obtained by mixing powdered rubber with synthetic resin. Item 4. The ridge cover according to item 1 or 2.