JPH06173238A - Ridge cover - Google Patents

Abstract

PURPOSE:To protect a ridge and prevent the growth of weeds by covering the whole face of the ridge with a cover formed of synthetic resin or the like into inverted U-shape cross section. CONSTITUTION:The upper part and the like of a high ridge is partially mended to the shape of a cover base part 11. The lower end part of a side plate part 14 is buried in the higher field. An extended plate 12 of the required length part is connected to the lower part of a side plate part 15, and the lower end of the extended plate 12 is buried in the lower field. Nails or the like are then driven into holes 17 provided at the respective parts for fixing. As occasion demands, an upper plate part 13 is additionally provided with a slip preventing means at the walking time, a water stagnation preventing means, and the like. The collapse of the ridge and the like can be thereby impeded while preventing water leak. This cover can be easily mounted coping with the shape of the ridge and the like, and the growth of weeds can be also prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention divides rice fields into ridge covers to be provided on ridges (hereinafter, referred to as ridges) for people walking or unicycles for farming traveling on the fields. The present invention relates to a ridge cover suitable for use in paddy ridges formed stepwise on a slope of a mountain or a plateau.

[0002]

2. Description of the Related Art The environment surrounding agriculture is severe every year,
The shortage of manpower due to the decrease in the agricultural population and the leaving of the young generation,
The current situation is that the cost increase due to mechanization is inevitable.

Originally, rice cultivation starts by cultivating the fields and maintaining the ridges. Although the fields are mechanized by a tiller, the ridges must be maintained manually.
The maintenance of ridges is one of the essential agricultural works for paddy rice cultivation.

[0004]

The ridges are often made of soil in the old days, and such ridges are perforated by people walking, wind and rain, or mora or crayfish. It easily collapses, or one rice field is divided into partitions, and it is easy for water to leak from the ridges at the early stage of rice growth, which requires uniform watering in each rice field. This is likely to occur in the case of a ridge (hereinafter referred to as "high ridge") that separates an upper rice field and a lower rice field, which have a large difference in height of the rice field (hereinafter referred to as "field difference"), between adjacent rice fields.

In order to solve this problem, conventional high ridges are
For example, the cross-sectional shape is as shown in FIG. 12, the top width B thereof is 0.3 to 0.5 m, and the height H1 on the upper field 1 side is 0.
3m, the standard slope of the inner slope part 5 (the upper slope side slope part) is 1: 1 as standard, and the height difference H with the lower slope field 2 exceeds 2.5m, which is commonly called the "bank". In the slope portion, a small step 8 is provided on the way, and an outer slope lower portion 7 is continuously formed below the small step 8. The standard size of each part of the high ridge 3 is formed as follows. The ridge soil is constructed by diverting the soil in the area, except for special cases such as peat.

[0006]

[Table 1]

In addition to this, bamboo fences and futon cages are constructed at locations where soil is weak and where there is spring water in order to protect slopes. In order to prevent collapse, it was necessary to sow short grass seeds on the slopes for reinforcement. But,
It is completely ineffective in preventing damage from moles.

Generally, since weeds grow and grow in soil ridges, it is necessary to mow a plurality of times (actually, 4 to 5 times) in a year, and the labor shortage becomes more serious. When the herbicide is sprayed, the roots also die and the ridges tend to collapse.

Further, the conventional methods of covering the ridges with a ridge sheet or spraying concrete on the ridges are embrittled in a short period of time, and they also collapse and grow weeds, and many effects are expected. Can not do it.

On the other hand, there is a ridge using a concrete block 9 as shown in the perspective view of FIG. 13, which is useful as a partition ridge for partitioning a partitioned rice field into smaller ones, but a high ridge. 3 is difficult to use, expensive, and expensive to install.

As described above, a large amount of labor is required for maintenance and repair of the ridges, resulting in a shortage of manpower and an increase in cost.

[0012] Therefore, the present invention is to provide a ridge cover which can maintain the function as a ridge at a low cost and also helps to reduce labor.

[0013]

The present invention includes a cover base portion which covers an upper part of a ridge, and an extension plate which is connected to the cover base portion and covers a lower part of a normal slope surface on the Shimo-Sumita side. The base portion is integrally formed with an upper plate portion, one side plate portion perpendicular to the upper plate portion, and the other side plate portion having a predetermined gradient to the upper plate portion. The ridge cover is formed of a plate-like body that can be connected to the lower end of the other side plate.

According to the present invention, the cover base portion has a connecting means formed at a lower end portion of the other side plate portion along the normal gradient, and the extended plate has an end having the connecting means formed at one end portion thereof along the normal gradient. It is a ridge cover made of boards.

Further, according to the present invention, the cover base portion is provided with connecting means at a lower end portion of the other side plate portion along the normal gradient, and the extended plate is provided with connecting means at both end portions along the normal gradient. It is a ridge cover composed of one relay plate and an end plate having a connecting means formed at one end along the normal gradient.

Further, according to the present invention, with respect to the cover base portion, the upper plate portion, the one side plate portion and the other side plate portion are integrally formed, and the connecting portion between the upper plate portion and the one side plate and the upper plate portion and the other side plate portion are formed. At least one of the connecting portions is a ridge cover whose angle can be freely changed.

Further, the present invention is a ridge cover in which an intermediate portion of the extension plate along the normal gradient is made flexible.

Furthermore, the present invention is a ridge cover in which the upper plate portion of the cover base portion is dimensionally variable in the ridge width direction.

[0019]

Function: A cover base is attached to the upper part of the ridge so that one side plate faces the upper paddy side, and an extension plate is connected to the other side plate of the base part facing the lower paddy side to connect the entire surface of the ridge. By covering the ridge, the ridge, especially the outer slope of the ridge, is prevented from collapsing, water leakage of the ridge is prevented, and weeds are prevented from growing on the ridge surface.

[0020]

1 is a perspective view of a ridge cover showing an embodiment of the present invention, FIG. 2 is a partially enlarged perspective view thereof, and FIG. 3 is a section line III-III of FIG. FIG. The ridge cover shown in these figures is suitably attached to a high ridge formed on a sloped land or the like that divides an upper paddy field and a lower paddy field having a field difference.

The ridge cover 10 extends over the cover base portion 11 that covers the upper portion of the high ridge 3 of the earth structure shown in FIG. 12 and the slope of the outer slope portion below the portion covered by the cover base portion 11. It is formed by combining the installation plate 12. The cover base portion 11 and the extension plate 12 are made of PVC (polyvinyl chloride) as a material, but other resin products such as polypropylene and polyethylene, ceramic products such as cement and asphalt, or metal products may be used.

The cover base portion 11 includes an upper plate portion 13 that abuts the top end portion 4 of the high ridge 3, one side plate portion 14 having a normal gradient of 90 degrees or more with respect to the upper plate portion 13, and an upper plate portion 13. On the other hand, the other side plate portion 15 which is formed to have a predetermined normal gradient and abuts on the outer gradient portion of the high ridge 4 is integrally formed. The length L of the cover base portion 11 in the longitudinal direction is preferably 4 m or less for convenience of transportation and construction, but is not limited to this.

At the lower end of the other side plate portion 15 of the cover base portion 11, a connecting means, which will be described later, for connecting the extended plate 12 is formed.

The extending plate 12 is made of a plate-like member that can be connected to the lower end of the cover base portion 11, and has an end plate 12a having a connecting means formed at one end along the normal gradient portion, as will be described later. Relay plate 12b having connecting means formed at both ends along the normal gradient
It is divided into and.

In one embodiment shown in FIGS. 1 to 3, the standard dimensions of each part are formed as follows.

W = 30 to 500 mm h = 350 mm m = 350 mm n = 300 to 500 mm angle k = 135 ° When the ridge cover 10 is attached to the high ridge of the existing earth structure shown in FIG. 12, the high ridge 3 is at least the high ridge 3. A part of the upper portion is modified to match the shape of the cover base portion 11.
For example, the small step portion 8 of the high ridge 3 is removed because it is not necessary due to the attachment of the ridge cover, and the gradient of the outer slope lower part 7 changes or the same gradient is maintained accordingly, and the small step portion 8 is removed.
It is also possible to increase the actual area of the lower rice fields by the amount that has disappeared.

The ridge cover 10 has a necessary length of the extension plate 12 below the other side plate portion 15 of the cover base 11 in accordance with the length of the outer slope portions 6 and 7 of the high ridge 3 to which it is attached. The end plate 12a is preferably connected to the lowermost part of the end plate 12a. According to the above dimensions, the ridge cover 10 has the one side plate portion 14 with the lower end portion buried about 50 mm in the upper part of the ridge cover 10 and the other side plate portion 15 at the time of mounting.
Alternatively, the lower end portion of the end plate 12a is also embedded and fixed in the soil of the lower field to the same degree. However, in order to further secure the fixation, as shown by the phantom line in FIG. 17 may be provided and nails may be driven in.

It is desirable that the upper plate surface of the ridge cover 10 be provided with a slip prevention means so that a pedestrian or a carrier can pass therethrough, and a water retention prevention means or the like is also provided.

The ridge cover 10 has a male fitting portion 18 and a female fitting portion 19 formed at one end and the other end, respectively, as shown in FIG. Part 1
The protrusion 18a of the male fitting portion 18 is fitted into the groove 19a of the groove 9.

Next, FIG. 4 is a vertical sectional view taken along the section line IV-IV in FIG. 2, showing the cover base portion 11 and the extension plate 12.
Shows the connection state with. As shown in FIG. 4, male connecting means 20 is formed along the longitudinal direction at the lower end of the other side plate portion 14 of the cover base portion 11. The male connecting means 20 is bent downward to form a single section, and comprises a male strip portion 21 which is long in the longitudinal direction of the cover base portion, and its distal end forms an inward beak portion 21a. There is.

On the other hand, one end of the extension plate 12 is provided with a female connecting means 23 which can be assembled with the male connecting means 20. The female connecting means 23 is the male connecting means 20.
When assembled, a female strip portion 24 is formed that circumscribes the male strip portion 21 so as to wrap it. A beak-shaped portion 24a engageable with the beak-shaped portion 21a is also provided at the tip of the female strip portion 24. According to this connecting method, the other side plate portion 15 of the cover base portion 11 and the extending plate 12 are pivotally supported by the connecting means 20 and 23, and it is possible to cope with the fluctuation of the external gradient of the high ridge 3. When the extension plate 12 is the end plate 12a, the other end is left open, but the relay plate 1
In the case of 2b, a male connecting means 25 having the same shape as the male connecting means 20 of the cover base portion 11 is formed at the other end.

FIG. 5 is a longitudinal sectional view showing another embodiment of the male and female connecting means. According to FIG. 5, the male connecting means and the female connecting means are formed by a two-fold bent strip piece 26 and a four-fold bent strip piece 27, respectively.

FIG. 6 shows that the male and female parts have the same shape, and the two bent strip pieces 28 and 29 are bent in the directions opposite to each other.
The 3rd Example of the connection means formed by is shown. According to the embodiment, the strip 30 at the other end of the relay plate 12b is formed in the direction opposite to the direction in which the one end side strip 29 is formed.

Also in these other embodiments and the third embodiment,
Depending on the size of the bending gap of each strip, it is pivotally supported around the connecting means in response to the fluctuation of the external gradient of the high ridge 3.

FIG. 7 is a vertical cross-sectional view of a variable-width ridge cover which can be used for high ridges having an unspecified crown width. In the ridge cover 10 of the fourth embodiment, the upper plate part of the cover base part 11 is integrally formed with the other side plate part 15, and the upper plate piece 30 of the width w1 is
On the other hand, it is divided into one side plate portion 14 and an upper plate receiving piece 31 which is integrated. The upper plate receiving piece 31 faces the free end portion of the upper plate piece 30, and has a width w2 and is extended in a posture of sandwiching the upper plate piece 30 from above and below. And a piece 33. An upward beak-shaped portion 33a is provided at the tip of the plate receiving lower piece 33, and a downward beak-shaped portion 30a is provided at the tip of the upper plate piece 30 so as to be engaged with each other.

The upper plate piece 30 and the upper plate receiving piece 31 are commonly used for a ridge having a top end width within a predetermined range by sliding the upper plate piece 30 and the upper plate receiving piece 31 in the width direction (left and right direction in FIG. 7). To be done.

As the cover base portion 11 of the variable width ridge cover, the structure of the fifth embodiment shown in the sectional view of FIG. 8 or the structure of the sixth embodiment shown in the sectional view of FIG. 9 is also used. That is, in the fifth embodiment, the upper plate piece 30 has the width w1 and has the one side plate portion 1
4, the upper plate receiving piece 31 having a width w3 facing the upper plate piece 30 is integrally formed with the other side plate portion 15. Further, in the sixth embodiment, the upper plate piece 30 is made of an independent flat plate, and the one side plate portion 14 and the other side plate portion 15 are integrally formed with the upper plate receiving pieces 31.

According to the sixth embodiment, the variable dimension of the upper plate portion 13 is larger than that of the fourth and fifth embodiments.

FIG. 10 is a vertical sectional view of the base portion 11,
7 shows a seventh embodiment of the present invention. According to this seventh embodiment,
The connecting portion between the upper plate portion 13 and the one side plate portion 14 has a soft portion 35.
Further, the connecting portion between the upper plate portion 13 and the other side plate portion 15 is also the soft portion 36, or only one of these two connecting portions is the soft portion. The angles of these soft portions can be changed so as to follow the shape of the earth ridge 3.

FIG. 11 is a perspective view of the extension plate 12 showing the eighth embodiment of the present invention. According to this embodiment, the extension plate 1
The intermediate portion along the normal gradient 2 is a soft portion 37, and the soft portion is configured to be able to bend following the fluctuation of the external gradient of the ridge 3.

The ridge cover of the present invention is not only used for high ridges, but can also be attached to ridges for compartments with no difference in the rice field and to middle ridges for partitioning a single rice field. In this case, the extension plate 12 is omitted.

[0042]

As described above, the ridge cover of the present invention comprises the cover base portion and the extending plate connected to the cover base portion, and the cover base portion includes the upper plate portion, One side plate portion perpendicular to the upper plate portion and the other side plate portion having a predetermined gradient to the upper plate portion are integrally formed, and an extension plate can be connected to the lower end portion of the other side plate portion by a connecting means. It

The ridge cover of the present invention is suitable not only for middle ridges but also for high ridges, and the entire outer sloped portion of the ridges is adjusted by adjusting the number of extension plates to be connected according to the difference in the field. It can be covered to prevent the collapse of ridges and prevent water leakage.

Further, since the use of the ridge cover of the present invention eliminates the need for the conventional small steps, the crushed land due to the small steps is reduced, and the actual area of the lower paddy field can be increased accordingly.

The ridge cover of the present invention in which the connecting portion has the cover base portion whose angle can be changed can cope with the case where the slope of the soil ridge to be covered is not specified, and the intermediate slope along the slope of the slope. The ridge cover having the extending plate whose portion is flexible can be easily attached even to a ridge whose slope changes midway.

Furthermore, since the width of the upper plate portion of the ridge cover of the present invention is variable, it can be commonly used as ridge covers of various widths and ridge covers for agricultural roads.

Needless to say, since the grass is not grown on the ridge by attaching the ridge cover, there is no need to mow the grass.

The ridge cover has a great effect in that it can be used for a long period of time, can be easily installed and can be provided at a low cost.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a partially enlarged perspective view of FIG.

3 is a vertical cross-sectional view taken along the section line III-III in FIG.

FIG. 4 is a vertical cross-sectional view taken along section line IV-IV in FIG.

FIG. 5 is a vertical sectional view showing another embodiment of the connecting means.

FIG. 6 is a longitudinal sectional view showing a third embodiment of the connecting means.

FIG. 7 is a vertical cross-sectional view of a variable width ridge cover.

FIG. 8 is a vertical cross-sectional view of a variable width ridge cover.

FIG. 9 is a vertical cross-sectional view of a variable width ridge cover.

FIG. 10 is a vertical sectional view of a base portion.

FIG. 11 is a perspective view of an extension plate.

FIG. 12 is a vertical cross-sectional view of a high ridge of a conventional earth structure.

FIG. 13 is a perspective view of a concrete block as a conventional ridge material.

[Explanation of symbols]

 10 Ridge cover 11 Cover base part 12 Extended plate 13 Upper plate part 14 One side plate part 15 Other side plate part 20, 25 Male connecting means 23 Female connecting means 30 Upper plate piece 31 Upper plate receiving piece 35, 36, 37 Soft Department

Claims (6)

[Claims] 1. A cover base portion that covers an upper portion of the ridge, and an extension plate that is connected to the cover base portion and covers a lower part of the normal slope surface on the lower field side, the cover base portion including an upper plate portion. , The one side plate portion having a normal gradient of 90 degrees or more with respect to the upper plate portion and the other side plate portion having a predetermined normal gradient with respect to the upper plate portion, and the extended plate is the other side plate portion of the cover base portion. A ridge cover characterized by comprising a plate-shaped body that can be connected to the lower end of the ridge. 2. The cover base portion has a connecting means formed at a lower end portion along the normal gradient of the other side plate portion, and the extending plate comprises an end plate having a connecting means formed at one end portion along the normal gradient. The ridge cover according to item 1. 3. The cover base portion has a connecting means formed at a lower end portion along the normal gradient of the other side plate portion, and the extended plate has at least one relay having connecting means formed at both end portions along the normal gradient. The ridge cover according to claim 1, comprising a plate and an end plate having a connecting means formed at one end thereof along the normal gradient. 4. The cover base portion is integrally formed with an upper plate portion, one side plate portion and the other side plate portion, and a connecting portion between the upper plate portion and the one side plate portion and a connecting portion between the upper plate portion and the other side plate portion. The ridge cover according to claim 1, wherein at least one of the two is freely changeable in angle. 5. The ridge cover according to claim 1, wherein the extension plate has a flexible intermediate portion along the normal gradient. 6. The ridge cover according to claim 1, wherein the upper plate portion of the cover base portion has a variable dimension in the ridge width direction.