JPH1054073A - Face-type packing for water-conveyance ditch and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a face-type packing capable of easily conducting the connection works of a drain ditch, etc. SOLUTION: The face-type packing 11 for the water-conveyance ditch is interposed between drain ditches 21 and seals the periphery of a water-conveyance hole 23. The surface-shaped packing 11 has a packing body 12 constituted of an expansible material in a tabular shape and a double-side adhesive tape 14 mounted on one side face of the packing body 12 and used for bonding with the connecting end face 21a of a drain ditch 21. The surface-shaped packing 11 has an opening 13 having approximately the same sectional shape as the water-conveyance hole 23 of the drain ditch, and the width of the upper end section of the packing 11 is formed in size smaller than that of the upper end section of the drain ditch. Since the surface-shaped packing 11 consists of the expansible material having thickness of 25mm, the packing 11 can correspond to the curved joining sections of the drain ditches 21 by changing thickness on the inside and the outside even when the jointing sections of the drain ditches 21 are formed in a curved shape. A section between the drain ditches 21 in the upper section of the face type packing 11 can be filled with mortar easily.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of connecting a plurality of concrete water passages, or connecting the water passages to a catchment basin or another water passage element to form a water passage such as a gutter or a culvert. Field of the Invention The present invention relates to a planar packing for a water channel used in such a case and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, for example, gutters on sidewalks and tunnels, gutters of various stadiums, and culverts of railways, etc.
A plurality of drainage channels configured as concrete blocks are connected in series or crosswise to form a drainage channel. Also, such drains are connected to catch basins and other drainage elements.

FIG. 9 shows an example of such a drainage channel.
It shows the cross-sectional shape of a gutter constructed using a drain gutter. As shown in FIG. 9, after crusher orchid 3 is laid in slot 2 formed by excavating road surface 1, base concrete 4 (or mortar) is cast thereon, and concrete block is placed on it. Is placed. The drain groove 5 shown in the figure has a box-shaped cross section, has a water passage hole 6 therein, and has a slit 7 in the upper wall, which is a so-called slit groove type. The drain grooves 5 are variously configured as having a predetermined length, and are connected in the direction of the water holes 6. A curb 8 is placed above one side of the drain 5.

FIG. 10 exemplifies a conventional connection structure for connecting a concrete drainage groove 5 which is a slit groove. In the example shown in FIG. 10, a concave portion 9a is formed on one connection end face 5a of the drain groove 5 so as to cover one side (left side in the drawing) of the outer peripheral surface of the water passage hole 6, and a water passage hole is formed on the other connection end face 5b. A concave portion 9b is formed so as to cover another side (the right side in the drawing) of the outer peripheral surface of No. 6. The upper end and the lower end of both recesses 9a, 9b are formed so as to exceed the virtual center line (vertical direction in the drawing) of the water passage hole 6, and when the drain groove 5 is connected to the front and rear, the recess 9a and the recess 9a are connected to each other. The upper ends and the lower ends of the recesses 9b intersect each other. String-like packings 10a, 10b made of rubber or the like are fitted so as to protrude from the respective connection end faces 5a, 5b at the construction site so as to be guided and fixed to these recesses 9a, 9b, respectively.
Glued by double-sided adhesive tape. Then, the other drain grooves 5, 5 having substantially the same configuration are connected back and forth, so that the connection end faces 5 are formed by the packings 10a, 10b.
Water sealing around the water hole 6 at a and 5b is performed. After the connection arrangement of the drainage grooves 5 and 5 is completed, mortar is filled between the end faces of the drainage grooves (outer peripheral portions of the string-shaped packings 10a and 10b) to perform an external treatment, and Construction is completed.

Although not shown, a concave portion is formed so as to cover the entire periphery of the water hole at the connection end face of the drain groove, and the string packing seals the entire water hole at the connection end face of one drain groove. Some of them are also known. Further, in the drain groove 5 shown in FIG. 10, concave portions 9a, 9b for attaching the string-like packings 10a, 10b are formed on the connection end surfaces 5a, 5b, but no concave portions are formed on the connection end surfaces 5a, 5b. There is also known one in which a string-shaped packing is directly adhered. Further, the water passage hole 6 of the drain groove 5 has various shapes, for example, a water passage hole having a polygonal cross section or a circular water passage hole. In addition, the slit 7 of the drain groove 5 is formed as shown in FIG.
As shown in FIG. 10, both ends of the drain are closed.
And a type in which the drainage groove is opened to both ends in the longitudinal direction, and the like.

FIG. 11 illustrates an example of a conventional construction in which such a concrete drainage groove 5 as a slit groove is connected to a curved portion for construction. Drain 5
Are connected to form a curved drainage channel,
Since 5 is a straight line, it is necessary to connect and arrange the joints of the drain grooves 5 and 5 at a predetermined angle. In this case, with the above-described cord-shaped packing, it is not possible to ensure the hermetic sealing of the outer peripheral surface side of the curve, and therefore, conventionally, the construction of the curved portion is performed by the method shown in FIG. First, as shown in FIG. 11, the drain grooves 5 and 5 are arranged at a predetermined angle corresponding to the shape of the curved portion serving as the drain channel, and the styrofoam 51 having substantially the same shape as the shape of the water passage hole is provided on both drain grooves 5. , 5 (into the water passage hole). Next, a connection plate (not shown) is arranged on the side surface of the joint, and the joint is fixed by driving in a concrete screw. Next, both drains 5,
5 is filled with a mortar 52 as a joint material in a joining space portion (outer peripheral portion of the styrene foam 51).
In order to prevent dropout of No.2, 53 is performed on the striated muscle on the upper part.
At this time, the mortar 52 is packed without attaching the string-shaped packing to the concave portions 9a and 9b, so that the concave portions
2 serves to fix 2. After the mortar 52 has hardened, the styrene foam 51 is scraped off from the slit 7 using a tool. By performing the construction as described above, the bending waterproof between the drain grooves 5 and 5 in the wire portion is secured.

[0007]

However, the conventional drain groove connection structure using the string-shaped packing described above has various problems as described below. The work of fitting the string-shaped packing into the concave portion of the connection end face of the drainage groove is troublesome, and the work efficiency is low, and sufficient bonding area may not be obtained due to a small bonding area. In particular, in the case of a concrete drainage groove in which concrete dust and fine sand easily adhere to the surface of the drainage groove, the bonding ability of the string-like packing is inferior. In the case of drainage not formed in 5a, 5b,
It was easy to peel off on the way, and the work efficiency was reduced.

When a drainage channel having a design length is to be constructed by connecting a plurality of drainage grooves, a dimensional error in the lengthwise direction of the drainage channel can be adjusted by a packing portion on the connection end face. Due to the small width, dimensional accuracy was difficult to achieve. In the case of a side gutter connected to a concrete drainage gutter, thermal expansion or contraction due to temperature change is, for example, a length of 2 mm.
In the case of 0 m, it may reach about 5 cm, but in the case of the string-shaped packing, the degree of absorption for this change in length was small. In the case of connecting other branch-shaped drainage grooves etc. by making a hole in the body of the drainage groove, it is difficult to cope with differences in hole shape and hole size at the connection part, and it is difficult to apply it to various connections There was also a problem.

[0009] In addition, when a drainage ditch is constructed in a curved drainage channel, special materials and steps such as insertion of foamed styrene and formation of scissors are required, and construction efficiency is low. In particular, since the styrofoam arranged in the water hole is for receiving the mortar, it cannot be taken out until the mortar has hardened, resulting in an increase in the working time. In this way, since the styrofoam cannot be removed immediately, the drainage ditch is normally connected and arranged in order while leaving the styrofoam in the water hole, and the final stage of almost complete construction of the drainage channel Will remove it. For this reason, the styrofoam in the water hole cannot be taken out from the end face of the drainage groove, and must be scraped off from a narrow slit, which is a troublesome operation.

The present invention has been made in view of such circumstances, and a first object of the present invention is to provide a planar packing for a water passage groove which can easily perform a work of connecting a water passage groove such as a drain groove.
The purpose of. A second object of the present invention is to provide a method for efficiently manufacturing such a planar packing for a water passage groove.

[0011]

According to the first aspect of the present invention, a plurality of concrete water passages are connected in series or crosswise, or the water passages are connected to a catchment basin or another water passage element. When forming a gutter, a culvert or other water passages, the packing is used to seal the water around the water holes through the connection portion, and is formed in a plate shape having a predetermined thickness by an elastic material. And a packing body which is surface-bonded to a connection end face of the water passage groove, and the packing body is a water passage groove surface packing having an opening for water passage of the water passage groove, thereby providing the first packing. Achieve the objectives. According to the second aspect of the present invention, in the planar packing for the water passage groove according to the first aspect, the shape of the opening for water passage is substantially the same as the shape of the water passage hole of the water passage groove. . According to the third aspect of the present invention, in the planar packing for a water passage groove according to the first or second aspect, a width dimension of an upper end portion of the packing body is smaller than a width dimension of an upper end portion of the water passage groove. Is formed. According to a fourth aspect of the present invention, in the planar packing for a water passage groove according to the first, second, or third aspect, an adhesive surface is formed on at least one side surface in the thickness direction of the packing body. I have. According to a fifth aspect of the present invention, in the planar packing for a water passage groove according to the fourth aspect, the adhesive surface is a double-sided adhesive tape attached to the packing body. In the invention according to claim 6, in the planar packing for a water passage groove according to any one of claims 1 to 5, the packing main body is arranged vertically, horizontally, or in other directions. Is divided into two or more packing elements. According to a seventh aspect of the present invention, in the planar packing for a water passage groove according to the sixth aspect, the divided ends of the packing element have dimensions that overlap each other during assembly. According to the invention described in claim 8, in manufacturing the planar packing for a water passage groove according to claim 6 or 7, each packing element is press-cut from a single plate-like material made of an elastic material. The molding at the time of molding is carried out, and a part of another packing element enters the opening portion of one packing element, and these packing elements are densely arranged adjacent to each other. Achieve two objectives.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In the present embodiment,
A case where the present invention is applied to connection of a slit groove type drainage groove as a water passage groove will be described. FIG. 1 is a perspective view showing a configuration of a planar packing according to an embodiment of the present invention, and FIGS. 2 to 4 are explanatory diagrams when a drainage channel is constructed using the planar packing.

As shown in FIG. 1, a planar packing 11 of the present embodiment has a substantially pentagon-shaped opening 13 partially curved at the center of a substantially rectangular plate-like packing body 12 as a whole.
And a double-sided adhesive tape 14 is provided on one side. The packing body 12 is made of a water-resistant elastic material. Specifically, urethane foam,
Various materials such as special urethane foam and EPDM foam can be used. The packing body 12 of the present embodiment is made of a stretchable material such as a foam (for example, trade name: Opcel) having a polyethylene resin as a base material, has excellent weather resistance, does not cause discoloration or the like by ultraviolet rays, and It has excellent chemical properties, is stable against acids and alkalis, and has excellent sound absorption characteristics in a high frequency range.

The surface packing 11 has a contour substantially the same shape as the connection end face of the drain groove to be connected, and has an outer diameter of, for example, a height of 360 to 670 mm and a width of 390 to 680.
mm and the thickness is, for example, 25 mm. In the present embodiment, the width of the upper end of the planar packing 11 is formed to be about 40 mm narrower than the width of the upper end of the drain groove to be used in order to pack mortar or the like as a joint material. The width of the left and right ends is also formed to be about 5 mm narrower than the width of the left and right ends of the drainage groove to be used. On the other hand, the width of the lower end of the sheet packing 11 is formed to be substantially the same as the width of the lower end of the drain groove to be used. Therefore, when the sheet packing 11 is bonded to the end face of the drain groove, the positioning can be easily performed by contacting the lower surface of the sheet packing 11 to the road surface with the drain groove placed on a road surface or the like.

The shape of the opening 13 corresponds to the shape of the water passage hole of the drain. The contour shape of the planar packing 11, the shape of the opening 13 and the dimensions thereof can be variously modified. For example, the opening 13 is formed in a circular shape or the like corresponding to the shape of the drainage hole. In some cases.
In particular, the thickness of the sheet packing 11 is set to 15 mm, 30 mm, 40 mm, 50 mm, 60 mm, or 60 mm in order to cope with various curvatures when a curved drainage channel is constructed.
Various thicknesses, such as 70 mm, 80 mm, 90 mm, and 100 mm, can be used.

The double-sided adhesive tape 14 provided on one side surface of the packing body 12 is covered with a cover sheet 15 having an oily surface. Thus, the adhesive surface can be exposed. However, the formation of this bonding surface with the double-sided adhesive tape 14 shows a case where the bonding surface is optimal for facilitating the bonding operation, and is not necessarily limited to this. It is of course possible to use it.

FIG. 2 shows a sheet packing 1 having such a structure.
1 shows a state in which a plurality of drains 21 and a catchment basin 22 are connected to each other to construct a drainage channel.
The drain groove 21 is of a slit groove type having a box-shaped cross section and having a slit 2b on the upper surface wall.
It has a rectangular drain hole 23. As shown in FIG. 2, the planar packing 11 is bonded to the connection end face 21a of the drain groove 21 to be connected, the connection end face 22a of the water collecting basin 22, and the like. That is, from the sheet packing 11 to the cover sheet 15
Is peeled off, and the sheet packing body 12 is bonded to the drainage grooves 21 and the connection end faces 21a, 22a of the water collecting basin 22 via the bonding surface of the double-sided tape 14. This bonding operation can be performed easily and quickly, for example, near the construction site. In this case, since the bonding area of the planar packing 11 is large, even if concrete dust, fine sand, or the like adheres to the surface of the drainage groove 21, the water collecting basin 22, or the like, sufficient adhesion can be obtained, and the construction site can be reached. The packing 11 does not peel off during the movement of.

The drain groove 21 and the water collecting basin 22 are connected and arranged so as to sandwich the sheet packing 11 thus bonded. For example, the connection end face 21a is formed through an opening 24 formed at the side end of the drain groove 21. A bolt 26 as a connecting tool is inserted into the hole 25, and is fixed by tightening to a nut (not shown) embedded in a facing portion such as a drain groove (not shown) disposed opposite to the drain channel having a predetermined length. Form. Thereby, the planar packing 11 is interposed between the drain groove 21 and the water collecting basin 22 in a compressed state.

FIG. 3 is a side sectional view showing a state in which a plurality of drain grooves 21 connected with the planar packing 11 interposed therebetween are connected. As shown by an arrow a, mortar or concrete as a joint material is filled in the gap 27 between the upper end of the planar packing 11 having a narrow dimension width and the connection end face 21a of the drain groove 21. To ensure strength and improve appearance. Similarly, the joint material is filled in the gap between the side portions in the lateral width direction. End face 21a of this drain 21
The filling of the joint material into the space is easier and more reliable than in the case where a conventional cord-shaped packing is used, since the outer peripheral edge of the planar packing body 14 reliably takes the contour as a formwork. Can be done. In addition, in the drainage channel constructed in this manner, the drainage groove 2 is compressed with the planar packing 11 compressed.
1 and the water collecting basin 22 etc., the dimensional error in the length direction of the drainage channel can be sufficiently adjusted by the packing part powder on the connection end face, and the dimensional accuracy is greatly improved compared to the past. can do. Further, in the case of the planar packing 11 of the present embodiment, in the case of a side groove or the like to which the drainage groove 21 made of concrete is connected, it is possible to sufficiently absorb a thermal expansion due to a temperature change and a length change due to a thermal contraction.

FIG. 4 shows a state where a curved drainage channel is constructed. As shown in FIG. 4, even when the drain grooves 21 must be joined at a constant bending angle θ, the sheet packing 11 of the present embodiment has a sufficient thickness and expands and contracts. Since it is formed of a conductive material, the difference in the compressed state between the outside and the inside of the bent portion absorbs the difference in the gap size between the connection end surfaces 21a of the drain grooves 21 in the bent portion. Thereby, a sufficient water sealing function can be ensured even at a curved connection portion. When the 25 mm thick sheet packing 11 is used, for example, a curved drainage channel can be formed by setting the interval between the drainage grooves 21 and 21 arranged in a curve to 5 mm and the interval between the drainage grooves 21 and 15 to 15 mm. Can be formed. If the curvature is further increased, a thicker sheet packing can be used to increase the outer space.

After connecting and arranging the drainage grooves 21 and 21 in a curved shape, the connecting plates 61 and 62 are fixed by driving concrete screws 63 and 63 in order to secure fixing and strength of both joints. Note that the connection plates 61 and 62 shown in FIG. 4 are enlarged and displayed for easy understanding, and are different from actual dimensions and sizes. The same connection plates 61 and 62 may be used. Further, the connection plates 61 and 62 may be fixed by bolts and nuts other than concrete screws. In this case, the nut is previously arranged in the drain as a connecting insert.

At the junction of the drain grooves 21 and 21 connected and arranged in a curved manner in this manner, the upper and side surfaces of the planar packing 11 formed in a fan shape are formed in the same manner as described with reference to FIG. The appearance is adjusted by filling the joint material such as mortar.

As described above, according to the planar packing 11 of the present embodiment, by forming a curved drainage channel, even if there is a space on the outer peripheral side between the end surfaces 21a and 21b of the drainage groove 21, Filling outside the joint can be supported by the end face of the planar packing 11. For this reason, water holes (drain holes)
It does not require any special materials or steps such as insertion of styrofoam or the like into the inside, or stiffening, and can be performed extremely efficiently. In addition, since there is no insertion of styrofoam or the like, there is no scraping work from the slit 21b, and the number of construction steps can be reduced.

Although the above-described curved drainage channel is described as being constructed in a curved manner on a horizontal plane, it is also possible to construct a drainage groove in a curved manner on a vertical plane.
In other words, when constructing on a slope such as a curved slope,
If the slope is a convex surface, the drain grooves 21 and 21 are arranged so that the interval at the upper end is narrower and the interval at the lower end is wide. Conversely, if the inclination is a concave phase, the drain grooves 21, 21 are arranged such that the interval at the lower end is narrow and the interval at the upper end is wide.
21 are connected. As described above, even when the drainage groove is constructed in a curved shape on the vertical surface, the construction can be easily performed by using the planar packing of the present embodiment.

Although not shown, when the angle θ between the drain grooves 21 connected and arranged to each other increases (for example, 45 degrees, 60 degrees, 90 degrees, etc.), the drain grooves 21 21 is cut or cut at an angle (θ / 2), and the connection end faces 21a, 21
21b is formed as an inclined surface and connected. By such processing, the end face of the drain groove 21 becomes an inclined surface, and the surface area of the drain hole 23 is increased. However, even in this case, since the planar packing 11 of the present embodiment has a sufficiently large area. Connection end faces 21a, 21b after cutting
In this way, it is possible to obtain a sufficient water sealing function by contacting the entire area. In this case, after the sheet packing 11 is attached to the connection end face 21a, the inside of the packing body is cut with a cutter or the like so that the shape of the opening 13 matches the shape of the drain hole 23 of the drain groove 21. Can be done.

Similarly, although not shown, when a hole is formed in the body of the drainage groove 21 to connect another branch-like drainage groove or the like, the planar packing 11 of the present embodiment may have a hole in the connection portion. It is easy to deal with differences in shape and hole size, and it is rich in application to various connections and compatibility. In particular, when connecting a new drainage channel to an existing drainage channel, the shape of the existing drainage channel and the shape of the newly installed drainage channel often differ. However, according to the planar packing 11 of the present embodiment, it is easy to cope with a difference in hole shape and hole size in the connection portion.

FIG. 5 shows a planar packing according to another embodiment of the present invention. In the planar packing 21 of the present embodiment, the packing body 11 is divided into, for example, upper and lower two packing elements 11a and 11b.
Double-sided adhesive tapes 14a and 14b are provided on one side surface of each of the packing elements 11a and 11b.
Then, at the time of construction, the covering ends 11a1, 11a2, 1 of the upper and lower packing elements 11a, 11b are divided.
1b1 and 11b2 can be combined with each other and used in the same manner as in the integrated planar packing. In the present embodiment, the divided ends 11a1, 11a2, 11b1, and 11b2 of the packing elements 11a and 11b have dimensions that overlap each other during assembly. As a result, a water seal function can be reliably obtained without a gap being generated between the joining ends.

FIG. 6 shows an example of a method of manufacturing the split type packing shown in FIG. The same applies to the case of the first embodiment described above. However, in the case of manufacturing the split-type planar packing 11 of the present embodiment, each packing element 11a, 11b is made of one sheet made of an elastic material. Double-sided adhesive tapes 14a, 14
It is desirable to press-cut this with b attached to form it. In this case, during molding, a part of another packing element (for example, lower element 1b) enters into a portion to be an opening 13 of one packing element (for example, upper element 1a), and each of these packing elements 1a , 1b are densely arranged adjacent to each other. Conversely, in the adjacent lower part, the opening 1 of one packing element (for example, the lower element 1b)
Part 3 becomes a part of another packing element (for example, upper element 1a), and these packing elements 1a and 1b are arranged closely adjacent to each other. That is, molding is performed in a staggered arrangement.
According to the method for manufacturing the planar packing of the present embodiment in which such shaping is performed, the number of the material pieces in the portion to be the opening 13 of the packing main body 11 can be reduced as much as possible, so that efficient manufacturing can be performed and cost reduction. And other economic advantages.

In the above embodiment, the packing body 1
Although an example in which 1 is divided into upper and lower parts is shown, the present invention may be configured such that it is divided into two parts, left and right packing elements 11c and 11d, as shown in FIG. Also in this case, double-sided adhesive tape 14 is applied to one side of each packing element.
Press cutting is performed with c and 14d attached.
In addition, the division direction may be changed to various directions,
The number of divisions may be three or more.

FIG. 8 shows the structure of the drain groove 21 to which the planar packing according to the present embodiment is attached in advance. This drain groove 21 is connected to the connection end surfaces 21a, 21a of the drain groove main body 21c.
1b, the planar packing 11 of each of the above-described embodiments is attached to at least one surface in advance.
Although the illustrated drain groove main body 21c has a slit groove shape having a slit 21b on the upper surface wall, it may be a culvert groove without a slit. Further, a slit groove having a structure in which a slit is formed over the entire length in the longitudinal direction may be used.

According to the drainage groove 21 having such a configuration, it can be handled as a drainage groove 21 with the sheet packing 11 in advance near a construction site or in a factory, which can contribute to improvement of construction efficiency. In addition, since the planar packing 11 is attached to the connection end surface 21a of the drain groove 21, the drain grooves are less likely to contact each other during transportation of the drain groove 21 to the construction site, thereby causing chipping. For this reason,
Shortage of materials during construction is reduced. further,
There is less need to prepare extra materials, transportation costs,
This is advantageous in terms of man-hours for transportation.

The present invention is not limited to the above-described embodiments, and concrete drainage grooves may be connected in series or crosswise, or the drainage grooves may be connected to a catchment basin or other drainage elements to form side gutters and culverts. In the case of configuring another drainage channel, the present invention can be widely applied to a packing that seals around a water hole through a connection portion.

Further, in each of the embodiments described above, the drainage channel is described as the drainage channel. However, the present invention is not limited to the drainage channel, and is not limited to the drainage channel. It is also possible to apply to a water ditch. Further, the present invention can be applied to a water passage for liquid fuel such as gasoline, petroleum, CWM, and COM, and a water passage for transporting various other liquids. That is, the concept of "water flow" used in each claim of the present invention does not refer only to water,
It broadly means liquid in general.

[0034]

As described above, according to the packing for the water passage groove according to the first to seventh aspects, the connection work of the water passage groove such as the drain groove can be easily performed. According to the method for manufacturing the planar packing for the water passage groove according to the eighth aspect, the planar packing for the water passage groove can be efficiently manufactured.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a planar packing according to the present invention.

FIG. 2 is a perspective view showing an embodiment of a drainage channel construction method according to the present invention using the sheet packing shown in FIG. 1;

3 is a side sectional view showing an embodiment of a drainage channel construction method according to the present invention using the planar packing shown in FIG. 1;

FIG. 4 is an explanatory diagram showing a construction state of a curved drainage channel using the planar packing shown in FIG. 1;

FIG. 5 is a perspective view showing a configuration of a split type planar packing as another embodiment of the planar packing according to the present invention.

FIG. 6 is an explanatory view showing an embodiment of a method for manufacturing a sheet packing according to the present invention for manufacturing the split-type sheet packing shown in FIG. 5;

FIG. 7 is a perspective view showing another embodiment of the split type planar packing according to the present invention.

FIG. 8 is a perspective view showing a state in which the sheet packing according to the embodiment of the present invention is attached to a drain groove in advance.

FIG. 9 is a cross-sectional view illustrating a configuration example of a drainage channel.

FIG. 10 is a perspective view showing a conventional example.

FIG. 11 is an explanatory view showing a construction example of a conventional curved drainage channel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Planar packing 11a, 11b, 11c, 11d Packing element 12 Packing main body 13 Opening 14 Double-sided adhesive tape 15 Cover sheet 21 Drainage groove 22 Water collecting basin 23 Drainage hole 24 Opening 25 Hole 26 Bolt 27 Gap 30 Plate material 61 , 62 Connecting plate

Claims (8)

[Claims] 1. A case in which a plurality of concrete water passages are connected in series or in an intersecting manner, or the water passage is connected to a catchment basin or another water passage element to form a gutter, a culvert, or another water passage. A sealing member interposed between the connection portions to seal the water around the water hole, formed into a plate having a predetermined thickness by a stretchable material, and surface-joined to a connection end surface of the water groove. A planar packing for a water passage groove, comprising a packing body, wherein the packing body has an opening for water passage in the water passage groove. 2. The planar packing for a water passage groove according to claim 1, wherein the shape of the water passage opening is substantially the same as the shape of the water passage hole of the water passage groove. The packing for passing water. 3. The packing according to claim 1, wherein the width of the upper end of the packing body is smaller than the width of the upper end of the water groove. The packing for a water passage groove is characterized in that: 4. The packing according to claim 1, 2 or 3, wherein an adhesive surface is formed on at least one side in the thickness direction of the packing body. Characteristic surface packing for water channel. 5. The packing according to claim 4, wherein the adhesive surface is a double-sided adhesive tape attached to the packing body. 6. The packing according to any one of claims 1 to 5, wherein the packing body comprises two or more packing bodies along up and down, left and right, or other directions. A planar packing for a water passage groove, which is divided into a packing element. 7. The packing according to claim 6, wherein the divided ends of the packing element have dimensions that overlap with each other during assembly. 8. When manufacturing the planar packing for a water passage groove according to claim 6 or 7, each packing element is formed by press-cutting a single plate-like material made of an elastic material. At the same time, the molding at the time of molding is performed in such a manner that a part of the other packing element enters the opening portion of one packing element, and these packing elements are arranged in a dense arrangement adjacent to each other.
A method for producing a planar packing for a water passage groove, characterized in that: