JP7190125B2 - Building material and construction method - Google Patents

Description

The present invention relates to building materials and construction methods.

For example, Patent Literature 1 discloses a heat insulating material fixture for fixing a plate-shaped heat insulating material between frameworks, comprising a vertical piece to be brought into close contact with the side surface of the framework, and a plate-shaped heat insulating material extending from the lower end of the vertical piece. and an upper piece extending from the upper end of the vertical piece and mounted and supported on the upper surface of the framework, and configured in a substantially Z-shape. tools are disclosed.

Further, for example, in Patent Document 2, a vertical piece projecting upward is provided at one end of a support piece, and a locking piece projecting to the opposite side of the support piece is extended from the upper end of the vertical piece to form a scrap. By arranging a pair of offcuts with supporting pieces facing each other, connecting the offcuts by rotatably attaching the ends of crosspieces to each of the supporting pieces, and sliding the offcuts in parallel with each other. A heat insulating material receiver is formed by freely adjusting intervals between scraps, and a locking piece is locked to an upper surface of a joist to dispose the heat insulating material receiver between adjacent joists and to support both sides of the heat insulating material receiver. A mounting structure for the insulation is disclosed, which is characterized in that the pieces each support the bottom edge of the insulation.

Further, for example, Patent Document 3 discloses a heat insulating material used for a heat insulating structure of a roof, which in the installed state is passed between adjacent purlins of the roof part, and is located on the eave side of the purlin. an eaves-side end surface having a flat portion formed along the side surface of the purlin; a ridge-side end surface having a flat portion formed to contact the side surface of the ridge-side purlin located on the ridge side of the purlin; and a claw portion that is provided on the eaves-side end face of the insulation plate portion and hooks on the eaves-side purlin in an installed state, wherein the claw portion extends toward the eaves-side end face An insulating material is disclosed that is characterized by being compressively deformable.

Japanese Unexamined Patent Application Publication No. 2014-5588 JP-A-7-54474 JP 2012-41771 A

An object of the present invention is to provide a building material that enhances adhesion to a given space.

A building material according to the present invention is a building material to be fitted into a predetermined space, comprising a heat insulating board made of foamed synthetic resin and a fixture having a Z-shaped cross section and continuous in the longitudinal direction. The fixing member is arranged on each of a pair of side wall surfaces facing each other, and the fixing member has a protruding piece having one end as a fixed end and the other end as a free end. It is inserted into the side wall surface of the plate and arranged.

Preferably, the fixture is made of synthetic resin and has a thickness of 1 mm or less.

Preferably, the length of the fixture in the longitudinal direction is equal to or less than the longitudinal dimension of the side wall surface of the heat insulating plate.

Preferably, the heat insulating plate has the fixtures arranged on the adjacent side wall surfaces thereof, and the fixing tools arranged on the adjacent side wall surfaces of the heat insulating board preferably have a position to be inserted into the heat insulating board. It is placed in a position where it does not overlap in the thickness direction of the insulation board

Further, a construction method according to the present invention is a construction method for a building material to be fitted in a predetermined space, comprising the steps of: forming grooves in the side wall surface of an insulation board made of foamed synthetic resin; a step of inserting a fastener having a Z-shaped cross section and continuous in the longitudinal direction into the groove formed by the groove; and a step of fitting the insulating plate into which the fastener is inserted into a predetermined space.

ADVANTAGE OF THE INVENTION According to this invention, adhesiveness with a fixed space can be improved.

It is a perspective view explaining the structure of the heat insulation panel 1 in 1st Embodiment. 1. It is six views of the heat insulation panel 1 in FIG. FIG. 4 is a cross-sectional view illustrating the fixture 20 in more detail; It is a flowchart explaining the construction method (S10) of the heat insulation panel 1 in 1st Embodiment. FIG. 4 is a diagram illustrating a process of attaching fixtures 20 to the panel body 10; It is a figure explaining the fitting process of the heat insulation panel 1. FIG. It is a perspective view explaining the structure of the heat insulation panel 2 in 2nd Embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments according to the present invention will be described with reference to the drawings. However, the scope of the present invention is not limited to the illustrated examples.

[First embodiment]
First, an overview of the first embodiment will be described.
FIG. 1 is a perspective view illustrating the configuration of a heat insulating panel 1 according to Example 1. FIG.
2 are six views of the heat insulating panel 1 in FIG. 1, FIG. 2(A) is a front view, FIG. 2(B) is a rear view, and FIG. 2(C) is a left side view. 2D is a right side view, FIG. 2E is a plan view, FIG. 2E is a bottom view, and FIG.

The heat insulation panel 1 of the first embodiment is a heat insulation panel material that is fitted and arranged in a predetermined space of a building. The prescribed space of a building is the space between the framework (so-called skeleton) that supports the structure of the building such as floors, walls, beams, etc. For example, the space between beams and columns This concept includes space, space between purlins, space between joists, or space between rafters. That is, the insulation panel 1 can be placed on the roof, ceiling, wall or floor of a building.
It should be noted that the heat insulating panel 1 of the present embodiment is described as being arranged in a space (between rafters) between the rafters arranged on the roof. In addition, the heat insulating panel 1 of this embodiment is an example of the building material according to the present invention.
As illustrated in FIGS. 1 and 2 , the heat insulating panel 1 has a panel body 10 and fixtures 20 . The heat insulation panel 1 has fixtures 20 attached to each of a pair of opposing side wall surfaces of the panel body 10 . The heat insulation panel 1 of this embodiment is composed of a panel main body 10 and fixtures 20 , and the fixtures 20 are attached to all side wall surfaces of the panel main body 10 .

The panel main body 10 is a plate material made of a synthetic resin having a low thermal conductivity. The synthetic resin with low thermal conductivity is, for example, urethane resin, phenol resin, polystyrene resin, or the like. The panel main body 10 of the present embodiment is a foamed heat insulating plate material formed of urethane resin or phenol resin, and specifically, urethane foam or phenol foam. When the panel body 10 is made of urethane foam, it is excellent in waterproofness. Moreover, when the panel main body 10 is made of phenolic foam, it is excellent in flame retardancy. Further, since the panel main body 10 is a heat-insulating plate material made of foamed synthetic resin, it contains a plurality of fine voids inside. Thereby, the panel main body 10 has appropriate elastic properties. It should be noted that the panel body 10 of the first embodiment is an example of a heat insulating board according to the present invention.

The fixture 20 has a Z-shaped cross-section, and is a thin mold member made of metal or synthetic resin that is continuous in the longitudinal direction. In addition, the fixture 20 of this embodiment is a synthetic resin mold material. By forming the fixture 20 from a synthetic resin, it has a lower thermal conductivity than metal, so it is possible to maintain adiabaticity. Further, the fixture 20 is preferably made of synthetic resin from the viewpoint of retaining elasticity.
Further, the thickness of the fixture 20 is, for example, 1 mm or less, and more specifically, 0.3 mm or more and 0.5 mm or less. In addition, the fixture 20 of this embodiment is formed with a thickness of 0.4 mm. If the fixture 20 has a thickness of 0.2 mm or less, it becomes difficult to maintain elasticity and strength. In addition, if the fixture 20 has a thickness of 0.5 mm or more, it is possible to maintain the elasticity and strength more. becomes. Therefore, by forming the fixture 20 with a thickness of 0.4 mm, it is possible to maintain elasticity and strength and to reduce the gap between the rafter and the plywood.
Moreover, the length of the fixture 20 in the longitudinal direction is equal to or less than the longitudinal dimension of the side wall surface of the panel body 10 . The length of the fixture 20 of this embodiment is substantially the same length as the longitudinal dimension of the side wall surface of the panel body 10 . Specifically, the length of the fixture 20A is approximately the same length as the longitudinal dimension 10W of the side wall surface 10A of the panel main body 10, and the length of the fixture 20B is the longitudinal dimension of the side wall surface 10B of the panel main body 10. It has approximately the same length as 10D. For example, when the longitudinal length of the side wall surface of the panel body 10 is 2 m, the longitudinal length of the fixture 20 is 2 m, and when the longitudinal length of the panel body 10 is 3 m, the fixture 20 has a longitudinal length of 3 m. It should be noted that a slight error is sufficiently allowed within the scope of achieving the purpose of the present application.

3A and 3B are cross-sectional views illustrating the fixture 20 in more detail, FIG. 3A is a cross-sectional view illustrating the fixture 20 before being attached to the panel body 10, and FIG. FIG. 4 is a cross-sectional view for explaining the fixture 20 attached to the panel body 10;
As illustrated in FIG. 3, the fixture 20 is integrally formed including a connection portion 22, a locking piece 23, and an insertion piece 24. As shown in FIG.
The connecting portion 22 is a longitudinally continuous connecting piece that connects the locking piece 23 and the insertion piece 24 .
The locking piece 23 is a protruding piece continuously provided from one end of the connecting portion 22 in a thickness direction different from the thickness direction of the connecting portion 22 , and is placed on the rafters to lock the panel body 10 . support.
The insertion piece 24 is a protruding piece continuously provided from the other end of the connection portion 22 in a thickness direction different from the thickness direction of the connection portion 22 , and is inserted into the side wall surface of the panel body 10 .
The locking piece 23 and the insertion piece 24 are protruding pieces having one end fixed to the connecting portion 22 and the other end free, and have a cantilever structure, for example. and
The fixture 20 is provided with a locking piece 23 continuously from one end of the connecting portion 22, and an insertion piece 24 continuously from the other end of the connecting portion 22. The locking piece 23, and The insertion pieces 24 are made to protrude in mutually opposite directions. As a result, the fixture 20 has a Z-shaped cross section.
The fixture 20 may be formed by bending a sheet material, by injection molding, or by extrusion molding, provided that the fixture 20 has a Z-shaped cross section and is continuous in the longitudinal direction. Molding or extrusion is preferred. In the case of injection molding or extrusion molding, since the cross-sectional shape can be molded in a Z-shaped state, the connecting portion between the connecting portion 22 and the locking piece 23 and the connecting portion between the connecting portion 22 and the insertion piece 24 are elastic. You can have power. On the other hand, when the sheet material is formed by bending, the connecting portion between the connecting portion 22 and the locking piece 23 and the connecting portion between the connecting portion 22 and the insertion piece 24 cannot have elastic force. Therefore, the fixture 20 is preferably molded by injection molding or extrusion molding.
Thus, the fixture 20 is formed of the connection portion 22 , the locking piece 23 and the insertion piece 24 .

As exemplified in FIG. 3(A), in the fixture 20 before being attached to the panel body 10, the connecting portion 22 and the locking piece 23 are connected perpendicularly (the so-called angle A is a right angle), and the connecting portion 22 and the insertion piece 24 are connected vertically (the so-called angle B is a right angle). It should be noted that the vertical and right angles are sufficiently permissible for slight errors and deviations within the scope of achieving the purpose of the present application.

Further, as illustrated in FIG. 3B, the fixture 20 is arranged on the side wall surface of the panel main body 10 by inserting the insertion piece 24 into the side wall surface of the panel main body 10 .
The insertion position of the fixture 20 is a position where the surface of the panel body 10 and the plane of the locking piece 23 of the fixture 20 are substantially flat. It should be noted that "substantially flat" means that slight steps, errors, and misalignments are sufficiently permitted within the scope of achieving the object of the present application. Specifically, the insertion position of the fixture 20 is such that the distance from the surface of the panel body 10 to the insertion position in the plate thickness direction of the panel body 10 is the same as the height H of the fixture 20 before installation. position. Here, the height H of the fixture 20 is a dimension of 2 cm or more and 4 cm or less. Since the fixture 20 of this embodiment has a height H of 3 cm, the position where the fixture 20 is inserted is 3 cm from the surface of the panel body 10 .
In the fixture 20 after being inserted into the panel body 10, the connection part 22 and the locking piece 23 are connected perpendicularly (the so-called angle A is a right angle) in the same manner as the angle before attachment, and the angle before attachment. In contrast, the connection portion 22 and the insertion piece 24 are connected at an obtuse angle (so-called angle C is an obtuse angle). That is, the fixture 20 attached to the side wall surface of the panel main body 10 is arranged on the side wall surface of the panel main body 10 in a state where the connection portion connecting the connection portion 22 and the insertion piece 24 is deformed (elastic deformation). . Specifically, the fixture 20 presses the connecting portion 22 with the side wall surface of the panel main body 10 in a direction opposite to the inserting direction of the insertion piece 24 (so-called pressing direction), and the pressed connecting portion 22 The connecting portion with the insertion piece 24 is deformed. As a result, the connection angle between the connection portion 22 and the insertion piece 24 changes from a right angle to an obtuse angle. In this manner, the fixture 20 is arranged on the side wall surface of the panel main body 10 in a state where the angle of the connecting portion between the connecting portion 22 and the insertion piece 24 is deformed.
Thus, the heat insulating panel 1 is composed of the panel main body 10 and the fixture 20 .

Next, a construction method for the heat insulation panel 1 will be described.
FIG. 4 is a flow chart explaining the construction method (S10) of the heat insulation panel 1 in the first embodiment.
5A and 5B are diagrams for explaining the process of attaching the fixture 20 to the panel body 10. FIG.
6A and 6B are diagrams for explaining the step of fitting the heat insulating panel 1. FIG.
As exemplified in FIG. 4, in step 100 (S100), the worker cuts a foamed synthetic resin thermal insulation board (urethane foam or phenolic foam) to a predetermined size to fit between the rafters ( Production of so-called panel body 10)

In step 105 ( S<b>105 ), the worker forms grooves 12 in the side wall surfaces of the cut panel body 10 . Specifically, as exemplified in FIG. 5A, the worker uses a knife (or digging tool) to form grooves 12 in the longitudinal direction of the side wall surface of panel body 10 to which fasteners 20 are to be attached. Form. The operator of this embodiment forms the grooves 12 in all the side wall surfaces of the panel body 10 in order to attach the fasteners 20 to all the side wall surfaces. If there is a side wall surface of the panel body 10 to which the fixture 20 is not attached, the groove 12 is not formed in the side wall surface of the panel body 10 to which the fixture 20 is not attached.
The operator forms the groove 12 with the position of 3 cm from the surface of the panel body 10 as the insertion position of the fixture 20 . By forming the groove 12 in advance, the inserting position of the fixture 20 is clarified, and since it serves as a guide for inserting, it becomes easier to insert.

At step 110 (S110), the operator arranges the fixture 20 on the panel body 10 in which the groove 12 is formed. Specifically, as illustrated in FIGS. 5(B) and 5(C), the operator arranges the fasteners 20A on one pair of side wall surfaces 10A facing each other among the side wall surfaces of the panel body 10. , and the fixture 20B is arranged on the other pair of side wall surfaces 10B facing each other. Thereby, the worker manufactures the heat insulating panel 1 .
The operator inserts the insertion piece 24 of the fixture 20 into the groove 12 formed in the side wall surface of the panel body 10 to arrange the fixture 20 . Since the inserted fixture 20 has an inserting piece 24 having substantially the same length as the longitudinal direction of the side wall surface of the panel body 10, a large area of the inserted portion is ensured in the longitudinal direction. As a result, the fixture 20 can increase the frictional resistance and become difficult to come off from the side wall surface of the panel body 10 .
In addition, the worker arranges the insertion positions of the fasteners 20A and 20B arranged on the adjacent side wall surfaces of the panel body 10 so that they do not overlap in the thickness direction of the panel body 10 . In other words, the fixtures 20A and 20B are separated inside the panel body 10 so that the insertion pieces 23 of the fixtures 20A and 20B are not in contact with each other. By slightly shifting the insertion positions of the insertion pieces 23 of the fixtures 20 so that they do not overlap each other, the worker can prevent the fixtures 20 from coming into contact with each other inside the panel body 10 and being damaged. .

At step 115 (S115), the worker fits the manufactured heat insulating panel 1 between the rafters. Specifically, as illustrated in FIG. 6, the worker temporarily places the heat insulating panel 1 between the rafters to be fitted (FIG. 6(A)), and temporarily places the heat insulating panel 1. is pressed downward to the rafters to move the insulation panel 1 between the rafters (FIG. 6(B)). At this time, the fixture 20 moves downward while the connecting portion 22 is pressed in the pressing direction by the rafters. Further, the operator presses the heat insulation panel 1 until the locking piece 23 of the fixture 20 and the rafter come into contact with each other. FIG. 6(C)). At this time, the connecting portion 22 and the locking piece 23 of the fixture 20 are elastically deformed by being pressed in the pressing direction by the connecting portion 22 and the locking piece 23 by the rafters. and the insertion piece 24 is elastically deformed. The operator can fix the heat insulation panel 1 by elastic deformation of these fixtures 20 so as not to fall off between the rafters.
Furthermore, from the viewpoint of improving airtightness, the operator may close the gap between the rafters and the locking piece 23 by using a tape used for improving airtightness after completing fitting between the rafters.
Thus, the worker can fit the heat insulating panel 1 between the rafters.
Further, in the process of S105, the case where the worker manually forms the groove 12 has been described, but it may be performed by machine work using a grooving device.

As described above, the insulation panel 1 of the first embodiment can reduce the gap between the panel body 10 and the rafters by arranging the fasteners 20 on all side wall surfaces of the panel body 10. Adhesion to the rafters can be enhanced. Thereby, the heat insulating panel 1 suitable for the roof of the building can be obtained.
In addition, since the heat insulating panel 1 is simply fitted between the rafters, it is possible to reduce the work load at the site and the time required for the work.
In addition, since the heat insulating panel 1 has preset insertion positions for inserting the fixtures 20 into the panel main body 10, the panel main body 10 of any thickness can be accommodated.

[Second embodiment]
Next, the outline in 2nd Embodiment is demonstrated.
In the second embodiment, elements having substantially the same functions and configurations as those in the first embodiment are denoted by the same reference numerals to omit redundant description, and only parts that differ from the first embodiment explain.
The heat insulating panel 2 of the second embodiment is a heat insulating panel material that is fitted and arranged in a predetermined space of a building, like the heat insulating panel 1 of the first embodiment. The prescribed space of a building is the space between the framework (so-called skeleton) that supports the structure of the building such as floors, walls, beams, etc. For example, the space between beams and columns It means a space, the space between purlins, the space between joists, or the space between rafters. It should be noted that the heat insulating panel 2 of the second embodiment will be described as being arranged between joists arranged on the floor. In addition, the heat insulating panel 2 of the second embodiment is an example of the building material according to the present invention.

FIG. 7 is a perspective view illustrating the configuration of the heat insulation panel 2 in the second embodiment.
As illustrated in FIG. 7 , the heat insulation panel 2 has a panel body 10 and fixtures 20 . The heat insulating panel 2 has fixtures 20 attached to a pair of side wall surfaces facing each other of the panel body 10 . The heat insulating panel 2 of the second embodiment is composed of a panel main body 10 and fixtures 20, and the fixtures 20 are attached only to a pair of side wall surfaces of the panel main body 10 facing each other.
The fixture 20 has a Z-shaped cross-section and is a metal or synthetic resin mold material that is continuous in the longitudinal direction. The fixture 20 of the present embodiment is a synthetic resin mold material.
Moreover, the length of the fixture 20 in the longitudinal direction is equal to or less than the longitudinal dimension of the side wall surface of the panel body 10 . Specifically, the length of the fixture 20 is 5 cm or more and 1/2 or less of the longitudinal dimension of the side wall surface of the panel body 10 . More specifically, the length of the fixture 20 is 5 cm or more and ⅓ or less of the longitudinal dimension of the side wall surface of the panel body 10 . The length 20L of the fixture 20 of the present embodiment is ⅓ of the longitudinal dimension 10W of the side wall surface 10A of the panel body 10 .
A plurality of fixtures 20 are arranged on one side wall surface of the panel main body 10, and are arranged at intervals. Two fixtures 20 of the present embodiment are arranged on one side wall surface of the panel body 10 and spaced apart from each other.
As described above, the heat insulation panel 2 is composed of the panel body 10 and the fixture 20 .

As described above, the heat insulating panel 2 of the second embodiment has a plurality of fixtures 20 spaced apart from each other on the side wall surface of the panel body 10, and by appropriately providing a gap between the joist and the building structure. Circulation of air above the floor and air below the floor can be performed. As a result, it is possible to maintain appropriate airtightness and to reduce the temperature difference between the floor and the underfloor, thereby suppressing sudden temperature changes in the indoor space.

Although the embodiments according to the present invention have been described above, the present invention is not limited to these, and various modifications, additions, and the like can be made without departing from the scope of the invention.

DESCRIPTION OF SYMBOLS 1, 2... Heat insulation panel 10... Panel main body 12... Groove 20... Fixing tool 22... Connection part 23... Insertion piece 24... Locking piece

Claims (5)

A building material fitted into a defined space,
a heat insulating board made of foamed synthetic resin;
A fastener that is formed continuously in the longitudinal direction and includes a connecting portion and two protruding pieces that protrude in opposite directions from both ends of the connecting portion in a cross-sectional view in a direction perpendicular to the longitudinal direction. death,
The fixture is arranged such that one of projecting pieces having one projecting piece as a fixed end and the other projecting piece as a free end is inserted into a side wall surface of the heat insulating plate,
The fixture is made of elastically deformable synthetic resin and has a thickness of 0.3 mm or more and 1 mm or less,
The fixture inserted into the side wall surface of the heat insulating plate has a connecting portion between one protruding piece and the connecting portion that contacts the side wall surface of the heat insulating plate, and the direction from one protruding piece to the other protruding piece A building material that is inserted so that the distance between the side wall surface of the heat insulating plate and the connecting portion increases toward the outside. The building material according to claim 1, wherein the fixture has a thickness of 0.3 mm or more and 0.5 mm or less, and an obtuse angle is formed between one of the projecting pieces and the connecting portion. The heat insulating plate has the fixtures arranged on each of a pair of side wall surfaces facing each other,
3. The building material according to claim 2, wherein the length of the fixture in the longitudinal direction is equal to or less than the longitudinal dimension of the side wall surface of the heat insulation plate. The heat insulating plate is arranged with the fixture on each side wall surface adjacent to each other,
4. The construction according to claim 3, wherein each of the fixtures arranged on adjacent side wall surfaces of the insulating board is inserted into the insulating board so as not to overlap in the thickness direction of the insulating board. material. A construction method for a building material fitted in a predetermined space, comprising:
a step of forming a groove in a side wall surface of a heat insulating board formed of foamed synthetic resin;
Of the fasteners that are formed continuously in the longitudinal direction and include a connecting portion and two protruding pieces that protrude in opposite directions from both ends of the connecting portion in a cross-sectional view in a direction perpendicular to the longitudinal direction, a step of inserting one protruding piece into a groove formed in the heat insulating plate;
a step of fitting the heat insulating plate into which the fixture is inserted into a predetermined space;
In the step of inserting, the connecting portion between the one projecting piece and the connecting portion contacts the side wall surface of the heat insulating plate, and the side wall surface of the heat insulating plate extends from the one projecting piece toward the other projecting piece. A method of inserting so that the distance between the connection part and the connection part is large.

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