JP2001020258A - Check dam and clamp for intersection of trap net - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a check dam capable of resisting debris and drift wood with the whole of a net by holding ties at the intersections of a trap net consisting of vertical lines and horizontal lines and also the clamps for the intersections of the trap net. SOLUTION: A trap net consisting of vertical lines and horizontal lines is formed at an opening portion of a levee body, an intersecting portion of the vertical and horizontal lines is clamped from the front and the rear with a clamp 1 comprising a front board 2, a middle board 3 and a rear board 4 overlapped, one of the vertical and horizontal lines is inserted between the front board 2 and middle board 3, and the other of the vertical and horizontal lines is inserted between the middle board 3 and rear board 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener for an intersection between a sabo dam and a catching net.

[0002]

2. Description of the Related Art Conventionally, trapping nets are formed from vertical and horizontal lines at the water passage portion of a sabo dam to stop debris and driftwood, and the intersections of these vertical and horizontal lines are bound by clips. I was This is because the net is formed by tying the intersections with clips to form a net, and the net as a whole resists debris and driftwood.

[0003]

However, as described above, in the configuration in which the intersection of the vertical line and the horizontal line is bound with a clip, the clip is easily cut with debris or driftwood and cannot function as the entire net. There was a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object of the present invention is to maintain the binding of intersections in a catching net consisting of vertical lines and horizontal lines to prevent debris and driftwood from being caught. It is to provide a fastener for the intersection of sabo dams and catching nets that can resist the entire net.

[0005]

Means for solving the above problems are as follows. According to the invention of claim 1, a catching net is formed from a vertical line and a horizontal line in a water passage portion of a bank body, and these vertical lines are formed. From the front and back, sandwich the intersection of the line and the horizontal line with a fastener that overlaps the front plate, the middle plate, and the back plate, and pass one of the vertical line and the horizontal line between the front plate and the middle plate, The other of the vertical line and the horizontal line is passed between the middle plate and the back plate.

According to the first aspect of the present invention, the intersection of the catching net is held by being clamped by the fastening tool in which the front plate, the middle plate and the back plate are overlapped, so that the whole net is debris. And driftwood. In addition, by passing one of the vertical and horizontal lines between the front plate and the middle plate and the other of the vertical and horizontal lines between the middle plate and the back plate, The fasteners do not move from the intersection because they resist the vertical lines and resist the vertical forces in the horizontal lines. Further, since the intersection of the vertical line and the horizontal line is sandwiched between the front plate, the middle plate and the back plate, the fastener is easily attached to the intersection.

According to a second aspect of the present invention, a front plate, a middle plate, and a back plate are formed by overlapping each other, and an insertion hole is provided between the front plate, the middle plate, and the back plate in an intersecting direction. It is characterized by having.

According to the second aspect of the present invention, since the front plate, the middle plate and the back plate are overlapped with each other, a fastener capable of securely holding the intersection can be easily manufactured, and the intersection can be easily formed. Can be tightened.

According to a third aspect of the present invention, the front plate, the middle plate and the back plate are
It is made of steel plate, stainless steel plate, plastic plate and wood plate.

According to the third aspect of the present invention, the fastener can be easily manufactured without using a special material.

According to a fourth aspect of the present invention, a seal member is interposed between the front plate, the middle plate and the back plate.

According to the fourth aspect of the invention, it is possible to maintain the water tightness and the close contact between the front plate, the middle plate and the back plate, and to prevent the displacement of each plate.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing an embodiment of a fastening device for an intersection between a sabo dam and a catching net according to the present invention. First, a fastener (hereinafter referred to as a fastener) for an intersection of a capturing net will be described, and then a sabo dam using the fastener will be described. FIG. 1 is a perspective view showing a fastener 1 according to the first embodiment. The fastener 1 has a rectangular front plate 2, a middle plate 3 and a back plate 4.
And are joined by four bolts 5.

Between the front plate 2 and the middle plate 3 of the fastener 1, there is provided an insertion hole 6 for a vertical line in which the semicircular groove 2a of the front plate 2 and the semicircular groove 3a of the middle plate 3 are fitted. Also formed between the middle plate 3 and the back plate 4 is an insertion hole 7 for a horizontal line in which the semicircular groove 3b of the middle plate 3 and the semicircular groove 4a of the back plate 4 are combined. Therefore, these vertical line insertion holes 6 and horizontal line insertion holes 7 are formed to intersect.

The front plate 2, the middle plate 3 and the back plate 4 are made of a steel plate or a stainless steel plate, but may be made of a plastic plate or a wooden plate. Furthermore, these shapes are not limited to squares, but may be polygons such as pentagons and hexagons, circular shapes, and the like.

FIG. 4 shows a fastener 8 of the second embodiment, except that the front plate 2, the middle plate 3 and the back plate 4 are overlapped with each other via a sealing material 9 such as a rubber sheet. , Has the same configuration as the fastener 1 of the first embodiment. The sealing material 9 is stuck between the front plate 2, the middle plate 3 and the back plate 4 and on the inner surfaces of the insertion holes 6, 7, and in addition, the front plate 2, the middle plate 3 and the back plate 3 Can be attached only to the inner surfaces of the insertion holes 6 and 7.

FIG. 5 shows a fastener 10 of the third embodiment, except that a plurality of insertion holes 6 for vertical lines and a plurality of insertion holes 7 for horizontal lines are formed. Has the same configuration as that of the fastener 1 of the first embodiment. Providing a plurality of insertion holes 6 and 7 as described above can be applied to a case where a vertical line or a horizontal line is composed of a plurality of lines.

FIG. 6 shows a fastener 11 according to a fourth embodiment, in which the fastener 11 composed of the front plate 2, the middle plate 3 and the back plate 4 has a spherical shape. By forming the fastener 11 in a spherical shape in this manner, damage and destruction due to a rock or the like can be reduced.

FIG. 7 shows a fastener 12 according to a fifth embodiment, in which the fastener 11 composed of the front plate 2, the middle plate 3 and the back plate 4 is formed as a column. As described above, such a fastener 11 can reduce damage and destruction due to rocks and the like. In addition, the fourth and fifth fasteners 11 and 12 can be overlapped with each other via the sealing material 9, and a plurality of insertion holes 6 for vertical lines and insertion holes 7 for horizontal lines can be formed. .

Hereinafter, an embodiment of a sabo dam using the above-mentioned fastener will be described. FIG. 6 shows a front view of the sabo dam. In the sabo dam 13, a catching net 16 is formed in a water passage portion 15 formed on an upper part of a bank body 14. The trapping net 16 is formed by a horizontal line 18 of a PC steel stranded wire stretched between both walls of the water-permeable portion 15 at appropriate intervals, and at an appropriate interval between the bottom surface of the water-permeable portion 15 and the top line of the horizontal wire 18. The fastener 8 is attached to an intersection 19 between the vertical line 17 and the horizontal line 18. Also, at the intersection 19 between the uppermost line of the horizontal line 18 and the vertical line 17, the fastener 8 is attached.
Is attached.

A vertical line 17 is inserted into the insertion hole 6 between the front plate 2 and the middle plate 3 of the fastener 8, and a horizontal line 18 is inserted into the insertion hole 7 between the middle plate 3 and the back plate 4. The front plate 2, the middle plate 3 and the back plate 4 are joined by four bolts 5 to tighten and hold the intersection 19 between the vertical line 17 and the horizontal line 18. Therefore, the fastener 8 resists the horizontal force acting on the fastener 8 by the vertical line 17 and resists the vertical force by the horizontal line 18 so that the fastener 8 does not move. ing.

A sealing material 9 such as a rubber sheet is provided between the front plate 2, the middle plate 3 and the back plate 4 and on the inner surfaces of the insertion holes 6 and 7.
Are provided to maintain watertightness therebetween to prevent water from entering, and the vertical lines 17 and the horizontal lines 18
4 prevents damage.

The fastener 8 is attached by first sandwiching the middle plate 3 between the vertical line 17 and the horizontal line 18, inserting the vertical line 17 into the semicircular groove 3 a for the vertical line of the middle plate 3, The horizontal line 18 is inserted into the semicircular groove 3b for the horizontal line of the plate 3. When the front plate 2 and the back plate 4 are overlaid on the middle plate 3 and joined with bolts 5, the vertical lines 18 are inserted into the vertical hole insertion holes 6, and the horizontal lines 18 are inserted into the horizontal line insertion holes 7. It is inserted and the fastener 8 is attached. In this manner, the fastener 8 can be easily attached such that the intersection is sandwiched between the front plate 2, the middle plate 3, and the back plate 4.

Since such a fastener 8 is not blown off or broken by debris or driftwood, the catching net 16 can fulfill the role of the entire net.

Although the fastener 8 of the second embodiment is used for the sabo dam 11 of the present embodiment, the fastener 1 of the first, third, fourth, and fifth embodiments, 10, 11, 12 can also be used.

Although the vertical wires 17 and the horizontal wires 18 are made of PC steel strands, it is also possible to use PC steel wires or steel wires.

[0027]

According to the present invention, the crossing portion of the catching net is sandwiched and held by the fasteners in which the front plate, the middle plate, and the back plate are overlapped, so that the net as a whole resists debris and driftwood. be able to.

By passing one of the vertical and horizontal lines between the front and middle plates and the other of the vertical and horizontal lines between the middle and back plates, In this case, the fasteners resist the vertical line and the horizontal force resists the vertical force, so that the fastener does not move.

Since the intersection of the vertical line and the horizontal line is sandwiched between the front plate, the middle plate and the back plate, the fastener can be easily attached to the intersection.

By overlapping the front plate, the middle plate and the back plate, a fastener capable of securely holding the intersection can be easily manufactured, and the intersection can be easily tightened.

The fastener can be easily manufactured without using a special material.

The watertightness and adhesion between the front plate, the middle plate and the back plate can be maintained, and the displacement of each plate can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fastener according to a first embodiment.

FIG. 2 is a sectional view of a fastener.

FIG. 3 is a sectional view of a fastener.

FIG. 4A is a perspective view of a fastener according to a second embodiment,
(2) is the same sectional view.

FIG. 5 (1) is a perspective view of a fastener according to a third embodiment,
(2) is the same sectional view.

FIG. 6 is a perspective view of a fastener according to a fourth embodiment.

FIG. 7 is a perspective view of a fastener according to a fifth embodiment.

FIG. 8 is a front view of the sabo dam.

FIG. 9 is a cross-sectional view in which a fastener is attached to an intersection of a vertical line and a horizontal line.

FIG. 10 is a perspective view in which a fastener is attached to an intersection of a vertical line and a horizontal line.

FIG. 11 is a cross-sectional view in which a fastener is attached to an intersection of a vertical line and a horizontal line.

[Explanation of symbols]

 1, 8, 10, 11, 12 Fastener 2 Front plate 2a, 3a, 3b, 4a Semicircular groove 3 Middle plate 4 Back plate 5 Bolt 6 Vertical line insertion hole 7 Horizontal line insertion hole 9 Seal material 13 Sabo dam 14 Embankment body 15 Drainage part 16 Net for catching 17 Vertical line 18 Horizontal line 19 Intersection

Claims (4)

[Claims] 1. A trapping net is formed from a vertical line and a horizontal line in a water passage portion of a bank body, and a front plate, a middle plate and a back plate are overlapped with each other at an intersection of the vertical line and the horizontal line. One of the vertical and horizontal lines is passed between the front plate and the middle plate, and the other of the vertical and horizontal lines is passed between the middle plate and the back plate. Sabo dam. 2. A front plate, a middle plate and a back plate are formed by superimposing them, and an insertion hole is provided between the front plate, the middle plate and the back plate in an intersecting direction. Fastener for the intersection of trapping nets. 3. The fastener according to claim 2, wherein the front plate, the middle plate and the back plate are made of a steel plate, a stainless plate, a plastic plate, or a wooden plate. 4. The fastener according to claim 2, wherein a sealing material is interposed between the front plate, the middle plate and the back plate. .