JP2018053426A - Underfloor insulation material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an underfloor insulation material to enable laying without a gap between lumber girders or joists while permitting a difference in size of a lumber girder or a joist forming a floor system.SOLUTION: An underfloor insulation material 1 to be laid in a state suspended between lumber girders or joists constituting a floor system comprises a main body panel 2 made of a foamed resin molded body, and the main body panel 2 includes a corner portion 4 fitted to a corner portion of a lumber girder or a joist along an end portion on a surface side facing a lumber girder or a joist and the side face of the corner portion 4 that is opposite to the side face of the lumber girder or the joist forms a convex face 4 curved in the thickness direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an underfloor heat insulating material.

  For example, there is an underfloor heat insulating material laid in a state of being suspended between a large drawing or joists constituting a floor assembly (see, for example, Patent Document 1). The underfloor heat insulating material is formed of a foamed resin molded body (hereinafter referred to as a main body panel) obtained by molding a beaded polystyrene foam (EPS) into a plate shape. EPS is molded by adding a foaming agent or a flame retardant to polystyrene resin to form beads by heating with steam and filling the mold.

Utility Model Registration No. 2599001

  By the way, in the conventional underfloor heat insulating material mentioned above, even if the spacing of the large drawing or joist that constitutes the floor assembly is the same, it was fitted between the large drawing or joist depending on the size of the large drawing or joist used. There may be a gap between the main body panel and it may be difficult to fit the main body panel between the overdrawn or joist.

  For example, when using a 3 inch wide draw, and when using a 3.5 inch wide draw, even if the distance between the draws is the same, the main body matches the size of each draw. The panel had to be prepared and it was very troublesome.

  The present invention has been proposed in view of such conventional circumstances, and lays without gaps between the large drawing or joists while allowing a difference in the dimensions of the large drawing or joists constituting the floor assembly. An object of the present invention is to provide an underfloor heat insulating material that enables the above.

In order to achieve the above object, the present invention provides the following means.
(1) An underfloor heat insulating material laid in a suspended state between a large drawing or joists constituting a floor assembly,
It has a main body panel made of a foamed resin molding,
The main body panel has a corner portion that is fitted to a corner portion of the large drawing or joist along the end on the surface side facing the large drawing or joist,
The underfloor heat insulating material characterized in that a side surface of the corner portion facing the side surface of the overdraw or joist forms a convex surface curved in the thickness direction.
(2) The underfloor according to (1), wherein the main body panel has a pair of inclined surfaces that are inclined at least on one surface or both surfaces with a ridge line in a direction intersecting with the large drawing or joist. Insulation.

  As described above, according to the present invention, there is provided an underfloor heat insulating material that can be laid without a gap between a large drawing or a joist while allowing a difference in dimensions of the large drawing or joists constituting the floor assembly. Is possible.

It is a perspective view of the main body panel which comprises the underfloor heat insulating material which concerns on one Embodiment of this invention. 1 shows the configuration of the main body panel shown in FIG. 1, (a) is a top view thereof, (b) is a bottom view thereof, (c) is a side view thereof in the longitudinal direction, and (d) is a side surface thereof in the short side direction. FIG. 5E is an enlarged side view of the enclosing portion A. FIG. 1 shows a case where the main body panel shown in FIG. 1 is laid between three-size large pulls, (a) is a side view seen from the direction of dividing the large pulls, and (b) is an enlarged view of the main part. It is a side view. 1 shows a case where the main body panel shown in FIG. 1 is laid between 3.5-inch wide-drawings, (a) is a side view seen from the direction of dividing the large-drawings, and (b) shows the main parts. It is the expanded side view. It is a figure for demonstrating the curved shape of a convex surface, (a) is a side view which shows the example, (b) is a side view which shows another example. It is a side view which shows the modification of the main body panel shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As an embodiment of the present invention, for example, an underfloor heat insulating material 1 shown in FIGS. 1 and 2 will be described.

  FIG. 1 is a perspective view showing an appearance of the main body panel 2 constituting the underfloor heat insulating material 1. 2A and 2B show the configuration of the main body panel 2. FIG. 2A is a top view thereof, FIG. 2B is a bottom view thereof, FIG. 2C is a side view thereof in the longitudinal direction, and FIG. (E) is the side view which expanded the enclosing part A. FIG.

  In the drawings shown below, an XYZ orthogonal coordinate system is set, the X-axis direction is the length direction (longitudinal direction) of the underfloor heat insulating material 1, the Y axis direction is the width direction (short direction) of the underfloor heat insulating material 1, The Z-axis direction is shown as the thickness direction (height direction) of the underfloor heat insulating material 1, respectively.

  The underfloor heat insulating material 1 of the present embodiment insulates the underfloor by being laid in a state of being suspended between, for example, a large pull or joist (a large pull in the present embodiment) constituting the floor assembly. . Specifically, the underfloor heat insulating material 1 includes a main body panel 2 as shown in FIGS. 1 and 2.

  The main body panel 2 is made of, for example, an EPS foam resin molding. EPS is molded by adding a foaming agent or a flame retardant to polystyrene resin to form beads by heating with steam and filling the mold. In addition to the EPS, examples of the foamed resin molded body include an extruded polystyrene foam, a rigid urethane foam, a polyethylene foam, and a phenol foam.

  The main body panel 2 is formed in a substantially rectangular flat plate shape as a whole by vertically shaping the above-described EPS. Further, the main body panel 2 has at least one surface or both surfaces (the lower surface in the present embodiment) and a pair of inclinations that are inclined with the ridgeline P in the direction (X-axis direction) intersecting (orthogonal in the present embodiment) intersecting with the large drawing. It has surfaces 3a and 3b.

  The ridge line P is a particle line remaining on the surface of the main body panel 2 when the EPS is vertically formed, and is formed so as to divide the central portion of the main body panel 2 in the longitudinal direction (X-axis direction).

  The pair of inclined surfaces 3a and 3b are directed toward a direction (Y-axis direction) away from the ridge line P located at the center of the main body panel 2 as a draft angle for facilitating release from the mold cavity after molding. Inclined. The draft angle is, for example, about 0.5 ° to 3 ° (1 ° in this embodiment).

  In addition, the main body panel 2 has a gradual width toward the lower side of both side surfaces along the longitudinal direction (X-axis direction) so that it can be easily fitted between joists lined up in a direction (Y-axis direction) orthogonal to the large pull. It has a tapered shape that becomes narrower. In addition, the taper angles of these both side surfaces are each about 0.5 ° to 5 ° (2 ° in the present embodiment).

  In the underfloor heat insulating material 1 of the present embodiment, it is possible to improve water drainage due to condensation by providing a pair of inclined surfaces 3 a and 3 b inclined on the lower surface of the main body panel 2 with the ridge line P interposed therebetween.

  On the other hand, the underfloor heat insulating material 1 of the present embodiment may have a configuration in which a pair of inclined surfaces 3a and 3b are provided on the upper surface of the main body panel 2 with the ridgeline P interposed therebetween. Thereby, even when it rains after laying between the large pulls, the drainage performance of the main body panel 2 can be improved by the pair of inclined surfaces 3a and 3b. That is, rainwater can be quickly drained to the outside of the main body panel 2 along the inclined surfaces 3 a and 3 b of the main body panel 2. In addition, the surface of the main body panel 2 has water repellency by the above-described EPS. Therefore, it is difficult for rainwater to collect on the surface of the main body panel 2 and for dew condensation water to adhere.

  Moreover, in the underfloor heat insulating material 1 of the present embodiment, the main panel 2 is provided between the main panels 2 by providing a pair of inclined surfaces 3a and 3b that are inclined with the ridge line P interposed between at least one surface or both surfaces of the main panel 2 described above. It is possible to increase the flexural strength of the main body panel 2 when the is suspended.

  The main body panel 2 has a corner portion 4 having a substantially L-shaped cross section that is fitted to a corner portion of the large drawing along an end portion on the surface (lower surface) side facing the large drawing. Further, the side surface of the corner portion 4 that faces the large side surface forms a convex surface 4a that is curved in the thickness direction (Z-axis direction). On the other hand, the lower surface of the corner 4 opposite to the upper surface of the large drawing forms a flat surface 4b.

  In the underfloor heat insulating material 1 having the above-described configuration, the main body panel 2 can be laid without a gap between the large draws while allowing a difference in dimensions of the large draws constituting the floor assembly.

  Specifically, the case where the main body panel 2 is laid between the 3-inch wide pulling K and the case where the main body panel 2 is laid between the 3.5-inch large drawing K are shown in FIGS. This will be described with reference to FIG. FIG. 3 shows a case where the main body panel 2 is laid between three-size large pulls, (a) is a side view seen from the direction of dividing the large pulls, and (b) is a main part thereof. FIG. 4A and 4B show a case where the main body panel 2 is laid between 3.5-inch wide-drawings, where FIG. 4A is a side view seen from the direction of dividing the large-drawings, and FIG. FIG. Further, in FIGS. 3 and 4, the center interval of the large pull K is the same dimension (90 cm). The difference between the bottom and top of the convex surface 4a is about 3 mm.

  As shown in FIGS. 3 (a) and 3 (b), when the main body panel 2 is laid between the three-dimension large pull K, the corner 4 is fitted to the corner of the large pull K, The side surface of the corner portion 4 facing the side surface of the large pull K is in a state where the vicinity of the top of the convex surface 4 a is in contact with the side surface of the large pull K.

  On the other hand, as shown in FIGS. 4 (a) and 4 (b), when the main body panel 2 is laid between the 3.5-inch large pull K, the corner 4 is fitted to the corner of the large pull K. As a result, the side surface of the corner 4 facing the side surface of the large drawing K is in a state where the convex surface 4a is crushed while being in contact with the side surface of the large drawing K.

  Thereby, in the underfloor heat insulating material 1 of this embodiment, it is possible to lay the main body panel 2 without any gap between the large pulls K while allowing a difference in dimensions of the large pulls K.

  As described above, in the underfloor heat insulating material 1 of the present embodiment, it is not necessary to prepare the main body panel 2 in accordance with the size of the large drawing K as in the past, and while allowing the difference in the size of the large drawing K, large Since the main body panel 2 can be laid without a gap during the pulling K, it is convenient and very convenient.

In addition, this invention is not necessarily limited to the thing of the said embodiment, A various change can be added in the range which does not deviate from the meaning of this invention.
Specifically, the curved shape of the convex surface 4a can be a shape as shown in FIGS. 5 (a) and 5 (b), for example. 5A and 5B are diagrams for explaining the curved shape of the convex surface 4a. FIG. 5A is a side view showing an example thereof, and FIG. 5B is a side view showing another example.

  The convex surface 4a shown in FIG. 5A has a shape in which the top is located near the center in the thickness direction (Z-axis direction) and is curved from the top toward the bottom at both upper and lower ends. On the other hand, the convex surface 4a shown in FIG. 5B is flat from the upper end in the thickness direction (Z-axis direction) to the middle part in the thickness direction (Z-axis direction), and extends in the thickness direction (Z-axis direction) from the middle part. It has a shape curved toward the bottom of the lower end.

  Moreover, the said underfloor heat insulating material 1 is good also as a structure like the main body panel 2A shown, for example in FIG. FIG. 6 is a side view showing the main part of the main body panel 2A. Moreover, in the following description, about the site | part equivalent to the said main body panel 2, while omitting description, the same code | symbol shall be attached | subjected in drawing.

  Specifically, in addition to the configuration of the main body panel 2, the main body panel 2A has a slit 5 for elastically deforming a portion where the convex surface 4a is formed. The slit 5 is formed so as to cut out the back side of the convex surface 4 a from between the side surface and the lower surface of the corner 4. Thereby, the part in which the convex surface 4a was formed can be elastically deformed in the direction (X-axis direction) in which the width of the slit 5 becomes narrow.

  In the main body panel 2A, when it is fitted between the large pulls K, the portion on which the above-described convex surface 4a is formed is elastically deformed, so that the adhesion to the large pulls K can be improved. It is also possible to increase the tolerance for the difference in the dimensions of the above-mentioned large pull K.

  DESCRIPTION OF SYMBOLS 1 ... Underfloor heat insulating material 2, 2A ... Main body panel 3a, 3b ... Inclined surface 4 ... Corner part 4a ... Convex surface 4b ... Plane 5 ... Slit P ... Ridge line (particle line) K ... Large drawing

Claims (2)

Underfloor heat insulating material laid in a suspended state between the large drawing or joists constituting the floor assembly,
It has a main body panel made of a foamed resin molding,
The main body panel has a corner portion that is fitted to a corner portion of the large drawing or joist along the end on the surface side facing the large drawing or joist,
The underfloor heat insulating material characterized in that a side surface of the corner portion facing the side surface of the overdraw or joist forms a convex surface curved in the thickness direction.   2. The underfloor heat insulating material according to claim 1, wherein the main body panel has a pair of inclined surfaces that are inclined at least on one surface or both surfaces with a ridge line in a direction intersecting with the large drawing or joist.

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