JPH0324703Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a corner joint structure of rubber water channel members to be installed in a curved portion of a drainage channel.

(Prior art) When constructing conventional concrete channel members along a curved drainage channel,
The direction of the waterway was changed by using standardized waterway components specifically designed for corners, or by building a square-shaped water reservoir, allowing water to flow there, and then laying a drainage channel in the other direction.

(Problem that the invention aims to solve) However, when installing concrete waterway members at curved corners of a drainage channel, if you use a specified corner waterway member, the angle will not match unless it meets the standard. For this reason, it had the drawback of lacking flexibility.

Furthermore, the method of creating a square-shaped water puddle and changing the direction has the problem that it takes a lot of effort and time to create the puddle. In this way, when constructing the corner portion of a drainage channel using conventional concrete waterway members, it is extremely unreasonable to use special waterway members or to adopt a unique construction method. , and economically lacking.

The present invention aims to improve the disadvantages of using the concrete waterway members mentioned above, and is a rubber waterway that can be easily adapted to the shape of the corners of the drainage channel and prevents water leakage at the corners. The purpose is to provide a corner joint structure for members.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a rubber water channel member having a substantially U-shaped cross section, in which a plastically deformable metal member is embedded in rubber as a core. The joint structure has a corner portion having a bending angle in the same direction, and the one rubber water channel member has a triangular cutout on the side surface and a cutout angle on the bottom surface that is at least equal to or larger than the bending angle of the corner portion. A triangular notch is provided, the rubber water channel member and another water channel member are overlapped with an adhesive layer interposed therebetween, and this overlapped portion is mechanically fixed with a tightening material at a substantially constant pitch. It is characterized by becoming.

(Embodiments) Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

In FIG. 1, rubber waterway members 1 and 2 used in the present invention are rubber materials made of natural rubber, isoprene rubber, chloroprene rubber, ethylene-propylene terpolymer with good weather resistance, butyl rubber, or a blend thereof. A core body 4 made of a metal wire mesh and a flat metal plate is embedded in the core body 3, and has a relatively elongated shape with a substantially U-shaped cross section and a length of about 50 to 200 cm.

As mentioned above, the core body 4 is a metal member made of a metal wire mesh or a metal flat plate, and this member has the function of retaining the shape of the rubber water channel members 1 and 2 and the function of freely changing the shape of this member. is in charge of
Therefore, this metal member has a porosity R={a/(a
+d) ² × 100} (a: opening, d: wire diameter) is 30 to 95
%, and plain weave, twill weave, crimp weave, diamond wire mesh, tortoise wire mesh, etc. can be used. In addition, the metal flat plate is about 0.02 to 1 mm thick and has multiple round and square through holes, and the percentage occupied by the through holes (area of through holes / flat plate area x 100).
is approximately 10-70%.

Next, the joint portion of the corner portions of the rubber waterway members 1 and 2 will be explained with reference to the developed view shown in FIG. The rubber water channel member 1 installed on the downstream side is composed of an inner surface 5 located inside the corner portion, an outer surface 10 located on the outside, and a bottom surface 7. End part 6 to be joined
There are two triangular notches 8 and 11.

One notch 11 has a right triangular shape obtained by cutting the bottom surface 7, and the cutting angle β is equal to the bending angle α at the corner portion of the water channel member. The other notch 8 has a right triangular shape obtained by cutting the inner surface 5, and the cutting angle γ is not particularly limited. When the end portions of both water channel members 1 and 2 are overlapped, the longitudinal axes of both water channel members 1 and 2 are made to intersect by the bending angle α of the corner portion.
In this case, the upstream channel member 2 is located above the downstream channel member 1, but the cut slope 12 of the bottom surface 7 of the downstream channel member is aligned with the outer surface 16 of the upstream channel member. The side surfaces 5 and 10 of the downstream channel member are easily folded and easily stacked on the upstream side surfaces 13 and 16.

However, in the present invention, the cutting angle β of the bottom surface 7 can be made larger than the bending angle α of the corner part, and in this case, the cutting slope 12 of the bottom surface of the water channel member is formed on the outer surface of the upstream water channel member. Does not comply with 16.

Moreover, the upstream water channel member 2 has an angle at the end 5 of the bottom surface in the direction in which the drainage channel bends. The side edges 6 have a shallower angle than the bottom edges.

Further, as shown in FIG. 1, the joint portions of both water channel members are arranged so that the water channel members 1 installed on the downstream side are placed down until the cutout portions 8, 11 are hidden.
2 are overlapped at a bending angle, and at that time, an adhesive layer 17 is interposed in the overlapping margin. The width of the adhesive layer is wider than the overlap margin, and the width is such that it slightly protrudes from between the water channel members 1 and 2. Although not shown, the cut portions 8 and 11 of the downstream water channel member 1 are filled with an amorphous sealant. In addition, tightening material 18 is applied to the overlapped portion at multiple locations at a constant pitch.
mechanically fixed by As shown in Fig. 3, a reinforcing plate 19 can be installed outside the water channel member and inserted into the tip of the tightening material 18 to increase the tightening force of the overlapping. It is not necessary to use it in places where construction is difficult. The tightening material 18 is a screw, bolt, bevel, rivet, etc., and the reinforcing plate 1
9 is made of wood, highly rigid resin, etc.

The adhesive layer 17 is made of a non-vulcanized rubber composition, a naturally vulcanizable rubber composition, a bituminous rubber such as asphalt, or a composition mixed with a synthetic resin, but considering the weather resistance problem. A vulcanized rubber sheet is laminated on an adhesive layer.It is preferable to use a vulcanized rubber sheet so that the vulcanized rubber sheet is exposed on the surface.
In addition, when such a laminated vulcanized rubber sheet is used, it is necessary to fill the amorphous sealing agent between the water channel member 2 and the vulcanized rubber sheet that are in contact with the vulcanized rubber sheet.

(Effects) As described above, by adopting the joint structure of the present invention, a rubber water channel member can be installed in a curved drainage channel, and thereby, it is possible to There is no need to prepare a special waterway member for this purpose, and since the waterway member is made of rubber, it can be easily fitted to slightly irregular shapes of the drainage channel, and has the effect of being extremely easy to construct.

[Brief explanation of the drawing]

Fig. 1 shows two water channel members joined by the joint structure of the present invention, Fig. 2 is a developed view of both water channel members joined in Fig. 1, and Fig. 3 is a diagram showing the structure of Fig. 1. It is an AA sectional view. 1...Downstream rubber water channel member, 2...Upstream rubber water channel member, 5...Inner surface of downstream rubber water channel member,
7...Bottom surface of the downstream rubber channel member, 8...Notch portion on the inner surface, 11...Notch portion on the bottom surface, 12...Slope surface of the notch portion, 14...Bottom surface of the upstream rubber channel member, 15...Upstream rubber Bottom end of channel member, 17... Adhesive layer, 18... Tightening material, 19... Reinforcement plate.

Claims (1)

[Scope of utility model registration request] A joint structure in which rubber water channel members each having a substantially U-shaped cross section and having a plastically deformable metal member embedded in rubber as a core body are joined at a corner portion having a bending angle, the side surface of one of the rubber water channel members A triangular notch is provided on the bottom surface, and a triangular notch having a cutting angle at least equal to or greater than the bending angle of the corner portion is provided on the bottom surface. A corner joint structure of a rubber water channel member, characterized in that the overlapping parts are overlapped and mechanically fixed with a tightening material at a substantially constant pitch.