JP3421554B2 - Insulation material constructed on hut beams, etc. and heat insulation structure using the insulation material - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rectangular plate-shaped heat insulating material made of synthetic resin foam, which is installed on a roof beam or the like, and a heat insulating structure of a building using the heat insulating material.

[0002]

[Prior Art and Problems] In wooden houses, ceilings,
Insulation work is performed by disposing heat insulating materials on floors, sidewalls, and the like. As the heat insulating material, a fiber material such as glass wool or a plate-shaped synthetic resin foam is used. It is relatively easy to lay and attach the heat insulating material to the floor surface and the side wall surface, and a fiber material or a plate-shaped synthetic resin foam is appropriately used. It is common to spread thermal insulation. However, with this construction method, it is relatively difficult to thermally insulate the ceiling surface without gaps, and sufficient thermal insulation may not be obtained in some cases. In the case of a two-story building, if there is a roof on the first floor, it is structurally difficult to make the heat insulating material between the walls on the second floor and the ceiling on the first floor structurally difficult, and the heat insulation becomes discontinuous. Become.

It is also practiced to place a heat insulating material on the roof itself. In that case, insulation is usually placed between the rafters or on top of it, but in ordinary buildings, the purlin for installing the rafters is placed orthogonally to the bottom of the rafters, making construction from below difficult. , Will be installed from the top. Therefore, when the wind is strong, there is a risk that the worker will fall under the wind with the heat insulating material and the heat insulating material may break. Further, even after the construction, it is possible that the heat insulating material accidentally gets on the heat insulating material and the heat insulating material is destroyed. Further, deterioration due to ultraviolet rays is also considered, and in addition to the deterioration of heat insulation performance, there is a risk that water will soak into the rafters in the event of rainfall.

It has been proposed that an I-shaped beam is used to perform the function of a rafter, and a plate-shaped synthetic resin foam is arranged between the beams (Japanese Patent Laid-Open No. 9-100584), but the body itself. Need to have a special structure and cannot be easily applied to general buildings. Further, a roof panel in which a heat insulating material is inserted in advance has been proposed in order to facilitate on-site construction, but the roof slope and modules of a building are limited and the cost also rises.

An object of the present invention is to eliminate the above-mentioned disadvantages of the heat insulating structure in the upper part of the building, and more specifically, to make a change to the roof structure of a conventional wooden structure. Insulation that can be easily installed on the upper part of the building without forming discontinuity at the joint with the wall, etc. and the upper part of the building using the insulation To provide a heat insulating structure.

[0006]

[Means for Solving the Problems] The above-mentioned problems are basically solved by directly mounting a large number of rectangular plate-shaped synthetic resin foam insulation materials directly on the roof beam or eaves girder whose roof is constructed. It will be solved by construction. However, in a traditional wooden structure, such as a shed structure, there are many other structural materials near or above the shed beams or eaves girders.
If you try to place the rectangular plate-shaped synthetic resin foam insulation as it is, they will become interference materials, and between the insulation materials,
Alternatively, a gap is generated between the structural material and the heat insulating material to cause adiabatic breakdown, and high heat insulating performance cannot be maintained.

Therefore, the heat insulating material according to the present invention is a heat insulating material made of a rectangular plate-shaped synthetic resin foam which is constructed on the roof beams or the eaves girders having the roof immediately above, and is a rafter or a shed. A pattern for cutting a kerf that can avoid interference is formed in a portion that interferes with other roof constituent members such as.

Workers (carpenters, etc.) when performing heat insulation
See the structure of a building's hut structure, and when laying the heat insulating material on the roof beams or eaves girders, the heat insulating material will collide with other roof components such as rafters and huts. The location corresponding to that portion is determined, and the portion corresponding to that portion is cut out by a cutter or the like using the pattern as a guide to form a kerf in an appropriate shape that can avoid interference with the roof constituent members.

In this state, the heat insulating material is placed on the roof beam or eaves girder, moved in a predetermined direction while sliding, and set in a predetermined position, so that the heat insulating material can be formed without any gap between the heat insulating material and the roof constituent member. It is attached. Similarly, for the second and subsequent heat insulating materials, by using the pattern as a guide, kerfs of appropriate shapes are formed at appropriate places, and the grooves are sequentially spread to form a space surrounded by the shed beams. A large number of heat insulating materials are spread over each other with no gaps to form a heat insulating structure.

In the present invention, the pattern provided in advance on the heat insulating material made of synthetic resin foam may be a pattern by slits reaching from the front surface to the vicinity of the back surface of the heat insulating material, or may be by printing. Both may be used.
When forming a slit having a predetermined depth, the work of forming the kerf on site is greatly facilitated. Further, by forming a pattern by printing on the surface opposite to the surface on which the slits are formed, it becomes possible to apply one sheet of heat insulating material to a wider variety of roof structure structures.

Preferably, the pattern is provided on the front surface and / or the back surface of the heat insulating material at a predetermined pitch such as 1/2, 1/3, 1/4, 1/6 of the module size of the house. As a result, it becomes possible to mass-produce a highly versatile heat insulating material for a standard building in advance, which facilitates the work and reduces the cost.

Another aspect of the heat insulating material according to the present invention is a heat insulating material made of a rectangular plate-shaped synthetic resin foam which is constructed on a roof beam or eaves girder having a roof immediately above. The material is characterized in that it has a kerf for avoiding the interference in the portion that interferes with the roof constituent members such as rafters and sheds. In this case, the work of forming the kerf on the site is completely unnecessary or can be completed without any work, and the workability is further improved.

The present invention also discloses a heat insulating structure for a building using the heat insulating material as described above. According to this heat insulating structure, it is possible to easily secure a continuous heat insulating structure between, for example, a wall portion and a ceiling portion without making any changes to the conventional wooden house structure structure.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a diagram showing an example of a shed construction structure for performing heat insulation construction using a heat insulating material according to the present invention, in which a required shed beam 2 ... Is assembled in a space surrounded by eaves girders 1 ... The huts 3 ... are set up in 2 ..., and the purlins 4 are placed on top of them, and the rafters on the eaves girders 1 ... and the purlins 4 ... .. and climbing beam 6 are struck. In a conventional building, the hut girder 2 ...
A fishing tree of a predetermined length is taken down from here to attach the ceiling to it, and a heat insulating material such as glass wool is arranged on the back side of the ceiling thus attached to construct a heat insulating structure. Therefore, it is difficult to perform heat insulation and a discontinuity is inevitably formed between the wall and the wall.

In the present invention, a rectangular plate-shaped heat insulating material 10 made of synthetic resin foam is directly provided on the eaves girders 1 ... or the shed beams 2 ... In the space surrounded by the eaves girders 1 ... By placing it, the heat insulating structure above the building is constructed. Insulation material 1
0 is molded with a synthetic resin foam, and among them, expanded polystyrene molded in-mold by the bead method,
Foamed polyethylene, foamed polypropylene and the like are preferable.
The density of the synthetic resin foam is preferably 8 kg / cubic rice to 1
00 kg / m3, more preferably and more practically 10
It is about kg / cubic rice to 30 kg / cubic rice. The thickness of the heat insulating material 10 may be appropriately selected depending on the degree of heat insulation required for the building, but in consideration of strength, a thickness of about 25 to 150 mm is preferable.

2 to 4 show one embodiment of the heat insulating material 10. FIG. 2 is a perspective view seen from the front side, FIG. 3 is a perspective view seen from the back side, and FIG. 4 is a sectional view thereof. . As shown in the drawing, on the front surface and the back surface of the heat insulating material 10, when the heat insulating material 10 is placed in the shed construction structure as shown in FIG. A pattern of the required shape is formed, and the worker makes a notch with a cutter etc. at the required location with the pattern as a reference,
A kerf of a required shape is formed there.

The shape and location of the pattern are arbitrary, and are appropriately set in consideration of the structure of the roof of the building for which the heat insulating structure is to be constructed and the ease of cutting work. In the illustrated example, seven vertical lines a1 that divide the longitudinal direction into eight equal parts and one horizontal line b1 that divides the lateral direction into two equal parts are drawn on the front surface. The vertical line a2 that divides
A book and two horizontal lines b2 that divide the lateral direction into three equal parts are also drawn by printing or the like. This interval is to equally divide the module size of a normal house, and cut along any of these lines to obtain a heat insulating material of an appropriate size and shape according to the roof structure. be able to. Further, when the heat insulating material 10 is directly placed on the eaves girders 1 ... Or the shed beams 2 ..., The positions of the rafters 5 and the shed 3 and the vertical lines a1 and a2 or the horizontal lines b1 and b2.
The probability of coincidence with the position of is extremely high. Therefore, it is extremely effective in practice to form the "pattern" along the vertical lines a1 and a2 or the horizontal lines b1 and b2.

In this example, a pattern for forming a kerf for eliminating interference at the intersection of the eaves girder 1, the rafter 5, and the climbing beam 6 is formed on the front surface side, and a shed is provided on the back surface side. Three
A pattern 40 for forming a kerf for eliminating the interference with is formed.

The pattern on the front surface side is formed by the slits 11 ... Which extend from the front surface of the heat insulating material 10 to the vicinity of the back surface. Each slit 11 has an inverted trapezoidal shape in side view, and the bottom 12 does not reach the back surface of the heat insulating material 10.
Also, one side line 13 is vertical and the other side line 14 is inclined (see FIG. 4). Then, the inclined side line 14
The inclination angle α of is the rafter 5 in the standard roof structure.
Or the inclination angle of the rafters 5 of the building on which the heat insulating material 10 is to be laid. Also, slit 1
The width of 1 is preferably about 2 to 5 mm, and when it is thinner than 2 mm, it is difficult to operate a cutter knife or the like when cutting a kerf as described later, and when it is wider than 5 mm, convection of air in the slit 11 is caused. Occurs and the heat insulation performance deteriorates.

As shown in the figure, two slits 11a, 11a and 11b, 11b having different directions are positioned parallel to the longitudinal direction of the heat insulating material 10 with the horizontal line b1 as the center, and two slits are arranged. The distance w between the slits is set to be substantially equal to the width of the standard rafter 5 or the width of the rafter used in the constructed building. Short side surfaces 10a, 1 of the heat insulating material 10
On the 0b side, the slits 11a and 11b are formed such that the vertical side lines b are directed toward the side faces 10a and 10b, and the slits 11a and 11b are formed of synthetic resin foam between the side faces 10a and 10b of the heat insulating material 10 and the vertical side lines b. There is a body wall 10c.
At the portions of the second, fourth, and sixth vertical lines a1, two sets of slits 11a and 11b are formed so as to face each other so that the vertical side line b faces the vertical line a1 side. Furthermore, both sides 10d in the longitudinal direction of the heat insulating material 10,
A slit 11 is similarly formed at a position parallel to 10e and inward from the side surface by a distance of ½ of the distance w.

In the lateral direction of the heat insulating material 10, two slits 11c, 11c and 11d, 11d having different directions centering on the second, fourth, and sixth vertical lines a1 are positioned in parallel. And the distance w between the two slits is
As in the case of the slits 11a and 11b, the width of the standard rafter 5 is set. The slits 11c and 11d are
The heat insulating material 10 is formed so that the vertical side lines b face the side faces 10d, 10e in the longitudinal direction, and the wall portion 10f of the synthetic resin foam is also formed between the side faces and the vertical side lines b.
Exists. Further, both side surfaces 1 in the lateral direction of the heat insulating material 10
0a, 10b parallel to the side surface and half the distance w
A slit 11 is similarly formed at a position inside by a distance of.

As shown in FIG. 3, the pattern 20 formed on the back surface of the heat insulating material 10 is not a slit (cut) but a printed pattern on the front surface, and its shape is also a square pattern.
The pattern 20 is formed at a required position such that the vertical line a2 and the horizontal line b2 are the center lines, and as described above, the vertical cut structural member such as the shed 3 is inserted into the cut groove. It becomes the standard when forming.

Next, an example of how to use the heat insulating material 10 will be described. First, the worker looks at the structure of the roof structure to be constructed, and cuts the heat insulating material 10 having a size of 910 mm × 1820 mm to a required size. Vertical line a as described above
1, a2 and horizontal lines b1, b2 are provided so as to evenly divide the module size of the house, and the desired product can be easily obtained by cutting along any one of the line segments.
FIG. 5 shows some examples of the heat insulating material thus cut, and the heat insulating materials 10A and 10B shown in FIGS. 5 (a) and 5 (b) are cut along a horizontal line b1 on the surface and a vertical line a1 at the center. The heat insulating material 10 has a size of 1/4. Also,
The heat insulating material 10C shown in FIG. 5C is cut along the central vertical line a1 and has a half size.

As shown in FIGS. 7 and 8, the heat insulating material 10A is arranged at a corner where two eaves girders 1 intersect at right angles, and the heat insulating material 10B has a corner on the side facing the hut 3 or a corner. The heat insulating material 10C is arranged at a position where the heat insulating material
It will be described as being inserted between 0A and the heat insulating material 10B.

As shown in the figure, the heat insulating material 10A is crossed at right angles to each other.
When the side edge of the book is placed on the eaves girder 1, the lower left corner 21 in the figure is interfered by the climbing beam 6 extending obliquely upward in the direction of 45 °, and the side surface central portion 31 and the right side portion 31 are The lower corner portion 41 receives the interference of the rafters 5. Therefore, the worker uses the slit 11 and uses a cutter knife or the like to cut grooves 21a, 31a, which can eliminate the interference.
The work of cutting out 41a is performed. For example, in the side surface central portion 31, while inserting the cutter knife along the slits 11c, 11c in the lateral direction, the side wall portion 10d thereof is formed.
And the inclined side line 14 of the slit 11
The synthetic resin foam between the slits 11c and 11c is removed according to the inclination angle α of. Thereby, the kerf 31a into which the rafter 5 enters can be easily cut out. In the case of the lower right corner 41, after making a cut along the slit 11c to the back surface, the inclined side line 14
By making a notch according to the inclination angle α of
The kerf 41a is easily cut out. However, in this example, it is not easy to cut out the kerf 21a in the lower left corner 21 with reference to only two orthogonal slits 11a and 11c. In such a case, the groove shape is calculated and cut out, or it is cut out empirically. However, even here, the bottom slope of the kerf is slit 1
The tilt angle α of the tilt side line 14 of 1 effectively functions. In this way, the kerfs 21a, 31a, 41a are formed at the required locations.
After cutting out, as shown in FIG.
The heat insulating material 10A is fed onto the above, and is pushed into a predetermined position while sliding on the roof beam 2. Thereby, the heat insulating material 10A
Can be assembled on two eaves girders 1 orthogonal to each other without any gap.

In the case of the heat insulating material 10B, its upper left corner 2
2 is interfered with by the rafter 5, and the upper right corner 42 is interfered by the hut or 3. For the upper left corner 22, the heat insulating material 1
Similarly to the lower right corner portion 41 in 0A, the kerf 22a may be formed with the slit 11a as a reference. Upper right corner 4
In 2, the heat insulating material 10B is turned upside down, and a square cut groove 42a into which the shed 3 can enter is formed using the pattern 20 (not shown here) printed on the back surface as a guide. Similarly, the heat insulating material 10B in which the kerf is formed is fed onto the roof beam 2, and is pushed into a predetermined position while sliding on the roof beam 2, whereby the heat insulating material 10B is formed.
Assembly of B is completed.

In the case of the heat insulating material 10C, as shown in FIG. 8, the left and right longitudinal side surfaces thereof are portions closely contacting the longitudinal side surfaces of the two heat insulating materials 10A and 10B already mounted, There is no interference from the components. The rafter 5 only interferes with the central portion 51 of the lateral side surface. Therefore, the slit 11 formed in that portion
The inclined kerf 51a may be cut out using a and 11a as guides. By inserting this heat insulating material 10C into the space between the two heat insulating materials 10A and 10B as shown in FIG. 8, and pressing the heat insulating material 10C, it is possible to perform the heat insulating work of a predetermined portion in the roof frame having the structure shown in FIG. finish. In the same manner, heat insulation is applied to other parts as well, and eaves girders 1 ...
By covering the entire surface of the space surrounded by with the heat insulating material 11 placed directly on the eaves girders 1 ... Or the shed beams 2 ... The structure is formed. At that time, the heat insulating material 10 is cut into various sizes and shapes along the vertical lines a1 and a2 and the horizontal lines b1 and b2 according to the size and shape of the place to be placed, and the heat insulating material 10 is used as described above. It is as follows.

In the above embodiment, the entire slit 11 is formed inside the heat insulating material 10 so that the side end faces are not exposed to the atmosphere. This is to prevent communication with the atmosphere after construction, thereby maintaining high heat insulation performance. Of course, when it is necessary to give priority to workability, the slit 11 may have a shape that reaches the side surface of the heat insulating material. Further, the slit 11 may be formed as a post-work by a cutter knife or a cutting die after forming the heat insulating material, and a member such as a fin corresponding to the slit shape is provided upright in advance in the foam molding die. The slits may be formed simultaneously with the in-mold foam molding.

In the above description, the "pattern" provided on the front and back surfaces of the heat insulating material is used as a guide to cut out appropriate kerfs at the construction site. However, many standard buildings are assumed. In such a case, in a predetermined place such as a factory, in advance, a heat insulating material having a kerf that can avoid interference is manufactured at a portion that will interfere with roof constituent members such as rafters and sheds. Good. In this case, it is not always necessary to provide the "pattern". In addition, since the production of the heat insulating material and the site work can be completely separated, there is an advantage that the heat insulating work becomes easier. The pattern formed on the front and back surfaces of the heat insulating material can be obtained by directly printing the heat insulating material, or by attaching a synthetic resin film, paper or the like on which the pattern is printed in advance to the heat insulating material.

[0030]

According to the present invention, there is no gap directly on a shed beam or eaves girder having a roof directly on it, without making any changes to a conventional shed construction structure such as a wooden construction. The heat insulating material can be spread over and the heat insulating structure in the upper part of the building can be easily constructed. In addition, the construction can be performed without forming a discontinuous portion in the connecting portion with the wall, etc., and a heat insulating structure in the upper part of the building having high heat insulating performance can be obtained.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a rooftop structure for performing heat insulation construction using a heat insulating material according to the present invention.

FIG. 2 is a perspective view of an embodiment of a heat insulating material viewed from the surface.

FIG. 3 is a perspective view of an embodiment of a heat insulating material as viewed from the back side.

FIG. 4 is a cross-sectional view of one embodiment of a heat insulating material.

FIG. 5 is a perspective view showing three types of heat insulating materials cut according to the construction site.

6 is a perspective view showing a state in which a cut groove is formed in the heat insulating material shown in FIG.

FIG. 7 is a diagram illustrating a state in which the heat insulating material shown in FIG. 6 is applied to the shed structure shown in FIG.

FIG. 8 is a diagram illustrating a state in which the heat insulating material shown in FIG. 6 is applied to the shed construction structure shown in FIG.

FIG. 9 is a view for explaining the structure of a shed which has been partially heat-insulated.

[Explanation of symbols]

1 ... eaves girder, 2 ... shed beams, 3 ... shed, 4 ... purlin, 5 ...
Rafters, 6 ... climbing beams, 10 ... heat insulating material, 11 ... slits as patterns for cutting kerfs that can avoid interference, 12
... bottom of slit, 13 ... vertical side of slit, 14 ...
Inclined side lines of the slit, 20 ... a printed pattern formed on the back surface,
10A to 10C ... Insulation material cut into appropriate dimensions, 21
a, 31a, 41a, 22a, 42a, 51a ... A kerf cut out using a slit as a pattern as a reference

   ─────────────────────────────────────────────────── ─── Continued front page       (56) Reference JP-A-6-26124 (JP, A)                 Actual development Sho 55-160407 (JP, U)                 Actual Kaihei 2-134107 (JP, U)                 Actual Kaihei 6-6509 (JP, U)

Claims (2)

(57) [Claims] 1. A heat insulating material made of a synthetic resin foam in the shape of a rectangular plate, which is installed on a roof beam or an eaves girder having a roof immediately above, and interferes with a sloping roof constituent member such as a rafter. A pattern for cutting an inclined kerf that can avoid interference is formed in a different portion, and the pattern has a width 2 to 2 having an inclined side line that extends from the front surface to the vicinity of the back surface of the heat insulating material. A heat insulating material to be installed on a roof beam or the like, which is formed by a slit of about 5 mm. 2. A heat insulating material to be installed on the roof beam or the like according to claim 1, wherein an inclined kerf is formed using the slit formed therein as a guide, and a rafter or the like is formed in the inclined kerf. With the sloping roof component of is inserted,
A heat insulating structure for a building, wherein the heat insulating material is spread.