JP3774456B2 - Concrete wall structure and engagement piece - Google Patents

Description

The present invention relates to a concrete wall structure, in particular to a engaging piece that engages a foamed synthetic resin molded panel and forms panel to the surface to impart soundproofing, heat insulation, condensation prevention Ru using the concrete wall structure is there.

  Conventionally, when forming concrete walls in building construction, formwork is constructed using formwork panels such as wood, and concrete is placed in the formwork and cured and hardened. Removed and formed a concrete wall. However, in recent years, in order to avoid the use of wooden formwork panels as much as possible from the viewpoint of environmental protection in the rainforest region, a formwork was constructed using a metal formwork panel in which a metal thin plate was formed into a square wave shape, There has been proposed one in which the formwork panel is buried in concrete after being hardened and left in a state of being left.

  As such a metal formwork panel, the present applicant has first formed a sheet metal corrugated plate, and intermittently provided a drainage hole elongated in the longitudinal direction on the convex or concave strip of the square corrugated plate. By providing a large number of them, it has been proposed that water contained in the concrete can be discharged sufficiently efficiently while preventing the concrete from flowing out (see Patent Document 1).

Further, as shown in FIG. 6, the applicant of the present invention is a form wall panel 40 for a concrete wall made of a metal corrugated corrugated plate. The groove width 41 is formed into a dovetail shape and the foamed synthetic resin layer is press-fitted into the dovetail groove 41 of the mold panel 40 to be engaged and fixed. By constructing the foam synthetic resin forming panel 44 with the protruding ridges 43, it is possible to easily form a foam synthetic resin layer on the concrete wall surface, and work on a concrete wall having condensation prevention, soundproofing and heat insulation properties. The thing which can be comprised at low cost with good property is proposed (refer patent document 2).
Japanese Patent Laid-Open No. 2002-30806 Japanese Patent Application No. 2003-13031

  However, the above-mentioned formwork panel is constructed so that the cross-sections of the ridges increase toward the outside and the concave grooves have a dovetail shape. Inconvenient and expensive. In addition, the foamed synthetic resin molded panel must have a shape that can be engaged with the formwork panel, resulting in a high manufacturing cost.

In view of the above-mentioned problems, the present invention provides a foamed synthetic resin layer that imparts soundproofing, heat insulating properties, and prevention of condensation on a concrete wall surface with good workability, convenience in transportation and storage, and low cost. and to provide a concrete wall structure and engaging pieces capable.

  In order to achieve the above object, the concrete wall structure of the present invention comprises a concrete wall, a formwork panel composed of square corrugated metal plates disposed on the surface thereof, and a surface of the formwork panel. The foamed synthetic resin molded panel includes a connecting portion that is connected at one end to a bottom surface of a recessed groove formed on the surface of the mold panel. In addition, the other end is engaged and fixed to the surface of the formwork panel by an engagement piece having an engagement portion for engaging the foamed synthetic resin molded panel.

  According to the present invention, a mold is constructed with a mold panel in which engagement pieces are connected to the bottom surface of the concave groove on the surface side, and concrete is placed therein to cure and harden the concrete. A concrete wall with the frame panel buried in the surface is formed, and the foamed synthetic resin panel is simply attached to the surface of the concrete wall by engaging and mounting the foamed synthetic resin molded panel to the engagement piece connected to the formwork panel. A concrete wall having soundproofing, heat insulation, and dew condensation prevention can be formed with good workability, and can be constructed at a low cost with convenience in transportation and storage.

  The engagement piece of the present invention is an engagement piece for engaging and fixing a foamed synthetic resin molded panel to the surface of a formwork panel made of a metal corrugated plate disposed in a buried state when forming a concrete wall. And having one end provided with a connecting portion for connecting to the bottom surface of the groove formed on the surface of the mold panel and the other end provided with an engaging portion for engaging the foamed synthetic resin molded panel. By using the engagement piece, the concrete wall structure can be realized and the effect can be achieved.

  Furthermore, when the engaging piece is configured to have a cylindrical shape with a bottom on the connecting portion side and an opening on the engaging portion side, and a thick portion is formed on the bottom portion, or when connected to a concave groove of the formwork panel It is preferable that the engaging portion is formed so as to protrude from the surface of the formwork panel.

  According to the present invention, a mold is constructed with a mold panel in which engagement pieces are connected to the bottom surface of the concave groove on the surface side, and concrete is placed therein to cure and harden the concrete. A concrete wall with the frame panel buried in the surface is formed, and the foamed synthetic resin panel is simply attached to the surface of the concrete wall by engaging and mounting the foamed synthetic resin molded panel to the engagement piece connected to the formwork panel. A concrete wall having soundproofing, heat insulation, and dew condensation prevention can be formed with good workability, and can be constructed at a low cost with convenience in transportation and storage.

Hereinafter, an embodiment of a concrete wall structure and engaging pieces of the present invention will be described with reference to FIGS.

  In FIG. 1, reference numeral 1 denotes a concrete wall structure having soundproofing, heat insulating properties, and dew condensation prevention. A concrete wall 2, a formwork panel 3 made of a thin metal plate disposed on the surface thereof, and a formwork panel 3. The foamed synthetic resin molded panel 4 mounted on the surface of the mold and the engagement piece 30 for engaging and fixing the foamed synthetic resin molded panel 4 to the surface of the mold panel 3.

  As shown in FIGS. 2 and 3, the mold panel 3 is composed of a square wave plate 5 in which ridges 6 and grooves 7 are alternately formed, and the groove 7 has a larger cross-sectional width toward the outside. Therefore, the ridges 6 are configured so that the cross-sectional width decreases toward the outside.

  C-shaped notches 8 for connecting to the engagement pieces 30 are formed on the bottom surface of the concave groove 7 at appropriate intervals. In addition, as shown in FIG. 2, the C-shaped notch 8 is formed by leaving a minute connecting portion 31 at a predetermined position in the outline of the circular hole and punching out most other portions. A blind lid portion 32 having substantially the same shape as this is left inside the mold notch 8. The blind cover portion 32 can be easily removed by hitting a tool such as a driver and tearing the connecting portion 31. Furthermore, the C-shaped notch 8 is also used as a mounting hole for attaching a separator that holds the formwork panel 3 with a predetermined interval when the formwork is constructed.

  The top surface of the ridge 6 has a shape that is bent in an R shape and recessed inward, and is reinforced during concrete placement.

  When the numerical example of the concrete dimension of the formwork panel 3 is shown, the plate | board thickness of the square wave board 5 is 0.25-0.5 mm, the pitch space | interval of the groove 7 is 40-60 mm, and the width | variety of the protruding item | line 6 is 15 ˜25 mm, the width of the groove 7 is preferably 25 to 40 mm, and the height or depth thereof is preferably about 10 to 15 mm. The C-shaped notch 8 is suitable to have a radius of 0.5 to 1.2 mm and an intermittent pitch width of about 20 to 50 mm.

  As shown in FIG. 1, the foamed synthetic resin molded panel 4 is composed of a flat plate member 11 having a thickness for obtaining predetermined soundproofing / insulating performance and prevention of condensation, for example, about 20 to 30 mm and substantially flat on both sides. ing. It is preferable that a decorative plate or the like is affixed to one surface 11 a on the front surface side of the flat plate member 11.

  As shown in FIG. 4, the engagement piece 30 includes a connecting portion 33 having one end connected to the bottom surface of the concave groove 7 formed on the surface of the mold panel 3 and the other end of the foamed synthetic resin molded panel 4. The engaging part 34 to be engaged is provided. The engaging piece 30 has a cylindrical shape with a bottom 35 on the connecting portion 33 side and an opening on the engaging portion 34 side, and a thick portion 36 is formed on the bottom portion 35. After forming the concrete, after mounting the foamed synthetic resin molded panel 4 to the formwork panel 3, in order to ensure stable fixation, nails and screws are passed through the foamed synthetic resin molded panel 4 and driven into the thick portion 36. be able to.

  The connecting portion 33 includes a pair of connecting pieces 37 made of an elastic member, and the connecting pieces 37 include the blind cover portion 32 of the C-shaped notch 8 formed on the bottom surface of the concave groove 7 of the mold panel 3. It can be connected to a circular hole obtained by punching. The engaging portion 34 is provided with a plurality of acute angle portions 38 formed in a sawtooth shape at the periphery of the opening, and the foamed synthetic resin molded panel 4 is press-fitted so as to insert the foamed synthetic resin molded panel 4 into the acute angle portion 38. Can be engaged.

  As a numerical example of specific dimensions of the engagement piece 30, a height of 2.5 to 4.0 mm, a radius of 0.5 to 20 mm, and a thickness of the thick portion 36 of about 10 to 15 mm are preferable. That is, since the height of the engaging piece 30 is configured to be greater than the depth of the concave groove 7 of the mold panel 3, when the engaging piece 30 is connected to the concave groove 7 of the mold panel 3, The engaging part 34 protrudes from the surface of the formwork panel 3.

  As another form of the engagement piece, an engagement piece 30a having a shape as shown in FIG. 5, that is, a shape excluding a plurality of acute angle portions 38 formed from the engagement piece 30 on the periphery of the opening in a saw-tooth shape is used. Also good. In order to engage the foamed synthetic resin molded panel 4, it is preferable to pierce the foamed synthetic resin molded panel 4 with a nail, a screw, or the like into the thick portion 36 a.

  In order to construct the concrete wall structure 1 described above, first, the engagement piece 30 is engaged in a circular hole obtained by punching out the blind cover portion 32 of the C-shaped notch 8 formed in the concave groove 7 of the mold panel 3. The connecting piece 37 is connected so that the joint portion 34 is on the outside. The formwork panels 3 are arranged opposite to each other with an interval corresponding to a predetermined thickness of the concrete wall 2 and at appropriate pitch intervals using appropriate C-shaped notches 8 formed on the ridges 6. The separators are connected to each other to maintain the interval, and the formwork panel 3 is supported by supporting the formwork panel 3 in this state. Next, concrete is placed in the mold, and the concrete is cured and cured, thereby forming the concrete wall 2 in a state where the mold panel 3 is buried on the surface. At that time, the top surface of the ridges 6 filled with concrete is curved in a R shape and recessed inward, so that the surface strength is maintained and the strength of the formwork panel 3 is secured.

  After that, the foamed synthetic resin molded panel 4 is mounted on the formwork panel 3 that is buried and integrated on the surface of the concrete wall 2. At that time, the foamed synthetic resin molded panel 4 is press-fitted into the engaging piece 30 connected to the bottom surface of the concave groove 7 of the mold panel 3 so as to insert the foamed synthetic resin molded panel 4. A foamed synthetic resin layer can be easily formed on the surface, and the concrete wall structure 1 having soundproofing, heat insulating properties, and dew condensation prevention can be constructed with good workability and low cost.

  Further, when the formwork panel 3 and the foamed synthetic resin molded panel 4 are transported and stored, the stacking height is small even if they are stacked on the surface, which is convenient and can reduce the cost.

The present invention relates to a beauty engaging piece Oyo widespread concrete wall structure, it is possible to satisfy the industrial applicability.

It is a partial cross section top view of the concrete wall structure of one Embodiment of this invention. It is a perspective view of the formwork panel of the embodiment. It is an expanded sectional view of FIG. It is a side view of the formwork panel and engagement piece of the embodiment. The engaging piece of other embodiment of this invention is shown, (a) is the perspective view, (b) is the side view. It is a disassembled perspective view of the concrete wall structure of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Concrete wall structure 2 Concrete wall 3 Formwork panel 4 Foamed synthetic resin molded panel 5 Square corrugated plate 6 Convex strip 7 Concave groove 8 C-shaped notch 30 Engagement piece 33 Connection part 34 Engagement part 36 Thick part

Claims (4)

A concrete wall structure comprising a concrete wall, a formwork panel made of a square corrugated metal plate disposed on the surface thereof, and a foamed synthetic resin molded panel disposed on the surface of the formwork panel. The foamed synthetic resin molded panel includes a connecting portion having one end connected to a bottom surface of a concave groove formed on the surface of the mold panel, and an engaging portion engaged with the foamed synthetic resin molded panel at the other end. A concrete wall structure characterized by being engaged and fixed to a surface of a formwork panel by an engagement piece provided. An engaging piece for engaging and fixing a foamed synthetic resin molded panel to the surface of a mold panel made of a square corrugated metal plate disposed in a buried state when forming a concrete wall, one end of which is the surface of the mold panel An engagement piece comprising: a coupling portion coupled to the bottom surface of the recessed groove formed in the first embodiment; and an engagement portion having the other end engaged with the foamed synthetic resin molded panel. The engagement piece according to claim 2 , wherein the connection portion side has a bottom and the engagement portion side has an open cylindrical shape, and a thick portion is formed on the bottom portion. The engagement piece according to claim 2 or 3 , wherein the engagement portion is formed so as to protrude from the surface of the formwork panel when connected to the concave groove of the formwork panel.

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