JP5547704B2 - Synthetic resin sheet affixed to the structure surface - Google Patents

Description

  The present invention is a synthetic resin that is applied to the surface of a structure, for example, in order to protect the surface of the structure such as a concrete drainage groove or wiring groove that is embedded in the ground with a U-shaped cross section. Regarding the sheet.

  The drainage groove is made of a concrete U-shaped groove, and a large number of rainwater flows into the drainage channel when a large number of rainwater flows through the drainage channel by burying a large number of them under the road. A phenomenon of abrasion due to running water occurs on the concrete surface defining the drainage channel.

  The following Patent Document 1 discloses a structure in which a synthetic resin sheet having a smooth surface is continuously attached to the left and right inner concrete surfaces and the inner bottom concrete surface of the U-shaped groove.

Then, the synthetic resin sheet having the lubricating surface is a plurality of projections formed on the application surface by forming a plurality of bottomed holes on a surface opposite to its attachment surface, the the respective projection Encroach into the surface layer of the concrete U-shaped groove to obtain a bond between them, and to prevent the bacteria from growing inside the U-shaped groove, or to suppress the growth of bacteria, and the bacteria react with hydrogen sulfide in the waste water. This prevents the concrete from deteriorating.

Japanese Patent No. 2914906

  However, under the above-described conventional concrete drainage groove, the protrusion that bites into the surface layer portion of the U-shaped groove has a simple cylindrical shape with the same shape, so that it is strong in the drainage channel of the U-shaped groove. When subjected to flowing water pressure or the like, the synthetic resin sheet itself has a problem that it is easily peeled off from each concrete surface.

  Therefore, the present invention is intended to provide a synthetic resin sheet that can prevent the U-shaped groove from peeling from the left and right inner concrete surfaces and the inner bottom concrete surface, and can effectively prevent the phenomenon of abrasion due to running water on each concrete surface. It is.

The present invention is a synthetic resin sheet that is attached to the surface of a structure to protect the surface of the structure such as a concrete drainage groove, and a large number of the resin is attached to the surface of the synthetic resin by vacuum molding or pressure forming. The anchor material is wrapped, and each anchor material wrapped with the synthetic resin sheet is stuck into the surface layer portion of the structure, and is attached .

  Preferably, the anchor material has a reverse taper shape, and the anchor material has a screw hole into which a bolt or the like can be screwed in its length direction.

  Since the present invention wraps a large number of anchor materials on the side of the synthetic resin sheet under vacuum forming method or pressure forming method, each anchor material remains in this state in the surface layer of a structure such as a concrete drainage groove. If it bites into the part, the synthetic resin sheet can be firmly attached to the surface of the structure without being peeled off, and the abrasion phenomenon of the surface can be effectively prevented. The molding frame used in the vacuum forming method or the pressure forming method does not require a mold that is normally required, and the cost is also low.

  In particular, in this case, if an anchor material having a reverse taper shape is positively used, a further anchor effect can be exerted and the peeling of the synthetic resin sheet from the surface of the structure can be reliably prevented.

  Also, if the anchor material has a screw hole in its length direction, bolts can be freely screwed together, so it is easy to install retrofitting products (for example, damming plates for running water and scooping structures for small animals) The range of use can be expanded.

  If an anchor material positioning portion is provided in the synthetic resin sheet molding frame, the anchor material can be positioned and wrapped with respect to the synthetic resin sheet. The screwing operation can be performed with high accuracy.

It is a principal part expanded sectional view which shows the state which wrapped the gravel as an anchor material in a synthetic resin sheet. It is a principal part expanded sectional view which shows the state which wrapped the reverse taper-shaped nut as an anchor material in the synthetic resin sheet. (A) is explanatory drawing which shows the state which scattered the gravel on the inner bottom face of the molding frame used for vacuum forming, (B) is explanatory drawing which shows the state which covered the synthetic resin sheet | seat on the molding frame, (C) is It is explanatory drawing which shows the state which extracted air from the shaping | molding frame and made the same synthetic resin sheet adhere to the gravel. It is a perspective view which shows the formwork for shaping | molding of a concrete drainage groove. It is a perspective view which shows the state which covered the synthetic resin sheet | seat which wrapped the gravel in the molding mold. It is a perspective view which shows the state which set the reinforcing bar group for reinforcement on the synthetic resin sheet. It is a perspective view which shows the state by which the synthetic resin sheet was affixed on the inner concrete surface of the completed concrete drainage groove. It is a principal part expanded sectional view which shows the state in which the wrapped gravel is biting into the surface layer part of a drain ditch. It is explanatory drawing which shows the state which installed the escape slope of the small animal in the inner concrete surface of a drainage groove. It is sectional drawing which shows the state which formed the positioning recessed part of the nut as an anchor material in the inner bottom face of the molding frame used for vacuum forming or pressure forming. It is a principal part perspective view which shows the state which the constriction has arisen between each nut by the wrapping of a nut.

  Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS.

  As shown in FIGS. 1 and 2, the synthetic resin sheet 1 according to the present invention is formed into a sheet shape with a synthetic resin such as polypropylene or polyethylene, for example, but uses a vacuum forming method or a pressure forming method. Then, a large number of anchor materials 2 are wrapped regularly or irregularly on the sticking surface 1a side of the sheet 1, and each anchor material 2 wrapped with the sheet 1 is bitten into the surface layer portion of the concrete drainage groove. Thus, the U-shaped groove constituting the drainage groove is continuously attached to the left and right inner concrete surfaces and the inner bottom concrete surface, and each concrete surface is effectively protected from the phenomenon of abrasion.

  Here, as the anchor material 2, small gravel gravel, a lump of plastic, an iron ball, a nut, a screw, or the like is used, but as the anchor material 2, any one of them is biting into the surface layer portion of the drainage groove. Those having a reverse taper shape or a shape that does not easily come off from the surface layer portion similar to the reverse taper shape are preferable.

  When the anchor material 2 is wrapped with the synthetic resin sheet 1 and is molded by the vacuum molding method, as shown in FIG. 3A, the molding frame 3 having a simple box shape with the upper surface opened. A large number of gravel gravel 2a as the anchor material 2 is sprayed regularly or irregularly on the inner bottom surface, and the synthetic resin sheet 1 is placed on the gravel gravel 2a as shown in FIG. Then, the synthetic resin sheet 1 is pressed against the gravel 2a, and air is drawn out from the holes 4 of the molding frame 3 so as to be in a vacuum state and brought into close contact with the gravel 2a. As shown in FIG. A synthetic resin sheet 1 enclosing the gravel 2a (anchor material 2) is obtained. In the figure, reference numeral 3a denotes a lid of the forming frame 3. In FIG. 2, a reverse-tapered nut 2 b is wrapped as the anchor material 2.

  Next, when each anchor material 2 wrapped in the synthetic resin sheet 1 is bitten into the left and right inner concrete surfaces and the inner bottom concrete surface of the U-shaped groove constituting the concrete drainage groove, the form 5 is used. The two are molded integrally.

  As shown in FIG. 4, the mold 5 includes a center part mold 6 that gives a U-shape to a U-shaped groove, and a pair of end part molds 7 that are fixed upright at both ends of the center part mold 6. And a pair of side molds 8 connected to both sides of the central mold 6 so as to be openable and closable. The side molds 8 are closed, and concrete molding such as mortar or resin concrete is made from the opening on the upper surface to the inside. The material is filled and dried, and then a concrete U-shaped groove constituting the drainage groove can be formed by opening the pair of side molds 8.

  This will be described in detail. As shown in FIG. 5, a pair of side molds 8 are opened, and the synthetic resin sheet 1 is placed upside down on the central mold 6 and remains in that state. As shown in FIG. 6, after setting the reinforcing steel bar 9 group from above, the pair of side molds 8 are rotated and closed to obtain the above concrete from the opening on the upper surface. When the molding material is filled and dried, as shown in FIG. 7, a U-shaped concrete drainage groove 10 in which the synthetic resin sheet 1 is continuously stuck to the left and right inner concrete surfaces and the inner bottom concrete surface is obtained. It is done. In addition, by wrapping the anchor material 2, the anchor material 2 is not crushed when the concrete molding material is placed or handled.

  In addition, as shown in FIG. 8, such a concrete drainage groove 10 has a large flowing water pressure and the like because the above-mentioned many anchor materials 2 are firmly biting into the surface layer portion of each concrete surface using the anchor effect. Thus, the synthetic resin sheet 1 is not easily peeled off, and the phenomenon of abrasion of each concrete surface by running water can be effectively prevented.

  In this case, even if the gravel 2a is used for the anchor material 2, the effect from the natural uneven shape (anchor shape) can be obtained, and the synthetic resin sheet 1 can be affixed to the surface of the concrete. In particular, as shown in FIG. 2, if a reverse-tapered nut 2 b having a screw hole in the length direction is used for the anchor material 2, peeling of the synthetic resin sheet 1 can be prevented more reliably, and the effect is enormous. It is.

  Further, when a reverse-tapered nut 2b is used for the anchor member 2, a bolt (not shown) can be screwed to the anchor member 2, so that such a bolt screwing structure is used. As shown in FIG. 9, if a slope 11 that allows a small animal such as a turtle to escape from the U-shaped groove is installed, it is possible to help a small animal that does not accidentally drop into the drain groove 10 and escape.

  In such a screwed structure, when it is necessary to regulate the wrapping position of the nut 2b with respect to the synthetic resin sheet 1, for example, as shown in FIG. Are formed at a predetermined interval, and the bottom end of the reverse-tapered nut 2b is fitted into the recess 12, so that the wrapping position of the nut 2b can be regulated. Further, in the case where the screw connection with the bolt is not performed, although not specifically illustrated, an insertion hole that penetrates or does not penetrate through the reverse taper-shaped anchor material 2 is formed. It is also possible to press-fit a bar or the like and retrofit a post-installation product using the bar.

  This is also true for the gravel 2a. In particular, when a reverse-tapered nut 2b or the like is encased, as shown in FIG. It ’s stupid.

DESCRIPTION OF SYMBOLS 1 Synthetic resin sheet 1a Sticking surface 1b Constriction 2 Anchor material 2a Gravel gravel 2b Reverse taper-shaped nut 3 Molding frame 3a Molding frame lid 4 Hole 5 Mold frame 6 Center part type 7 End part type 8 Side part type 9 Rebar 10 U-shape Drainage groove 11 Slope 12 Recessed part (positioning part)

Claims (3)

A synthetic resin sheet that is affixed to the surface of the structure to protect the surface of the structure, wherein the anchoring surface side of the synthetic resin sheet is wrapped with a large number of anchor materials by vacuum molding or pressure molding, and the synthetic resin synthetic resin sheet to be attached to the anchor material encased in sheets to the structure surface, wherein the Turkey was bite into the surface portion of the structure.   The synthetic resin sheet applied to the surface of a structure according to claim 1, wherein the anchor material has a reverse taper shape.   The synthetic resin sheet attached to the structure surface according to claim 1 or 2, wherein the anchor material has a screw hole in its length direction.

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