JP2007170002A - External heat insulation structure of building, and heat insulation panel mounting bracket for use therein - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To implement excellent heat insulation performance of an existing building by carrying out simple construction work. <P>SOLUTION: A mounting bracket 10 which is fixed to an external wall surface R1 of a building skeleton R, and a heat insulation panel 20 which is mounted on the external wall surface R1 via the mounting fitting 10, are prepared. Then an engaging portion 12 of the mounting bracket 10 is inserted into a formed heat insulation material 21 to secure a cavity G, and the heat insulation panel 20 is mounted in a manner being spaced away from the building skeleton R. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an external heat insulating structure of a building that has high heat insulating performance and can be easily constructed in a building made of reinforced concrete (including steel concrete, the same applies hereinafter), and a mounting bracket for a heat insulating panel used therefor About.

The outer heat insulation structure that attaches a heat insulation panel to the outer wall surface of a reinforced concrete building body is, for example, a precast concrete board with an exterior panel attached to the surface side of the concrete board and a heat insulating material attached to the back side as an outer formwork. By placing the concrete for the outer wall, the heat insulation panel of the precast concrete board can be integrally constructed simultaneously with the building body (Patent Document 1). On the other hand, when adding a heat insulation panel for external heat insulation to an existing building, for example, a construction method is known in which the heat insulation panel is screwed to the outer wall surface via an anchor bolt that is fixed to the building body (Patent Document 2). .
JP 2001-3499 A Microfilm of Japanese Utility Model No. 53-117274 (Japanese Utility Model Application No. 55-35102)

  According to the former of the prior art, since the outer wall of the building body is formed using a precast concrete plate for heat insulation as a formwork, it may be applied to an existing building even if it is good to construct a new building. In the latter case, it can be applied to an existing building, but there is a problem that an excessive number of man-hours are required for fixing the anchor bolt and screwing the heat insulation panel. In addition, since neither of them can provide a gap between the heat insulation panel and the building body, there is a problem that moisture enters the heat insulation panel and deteriorates the heat insulation performance.

  Therefore, in view of the problems of the prior art, the object of the present invention is to easily construct an existing building by combining a lightweight heat insulating panel, a base part, and a mounting bracket having a locking part. Another object of the present invention is to provide an external heat insulating structure for a building capable of maintaining good heat insulating performance over a long period of time, and a mounting bracket for a heat insulating panel used therefor.

  The structure of the first invention according to this application for achieving the above object (referring to the invention according to claim 1, the same applies hereinafter) includes a mounting bracket for fixing to a concrete outer wall surface of a building body, and a mounting bracket. And a heat-insulating panel to be mounted on the outer wall surface of the building body, the mounting bracket is provided with a locking portion standing on the base part fixed to the building body, and the heat-insulating panel is on the surface side of the foam heat insulating material. Attach a mesh fabric for reinforcement to the fabric and waterproof it, insert the locking part into the foam insulation, and install at least a space equivalent to the thickness of the base part between the building body Is the gist.

  In addition, the latching | locking part can be adhere | attached on a foam heat insulating material via an adhesive agent.

  The configuration of the second invention (referring to the invention according to claim 3, hereinafter the same) includes a base portion fixed to the concrete outer wall surface of the building body and a locking portion standing on the base portion. The locking part is inserted into the foam insulation of the heat insulation panel to provide at least a gap corresponding to the thickness of the base part between the building body and to attach the heat insulation panel to the outer wall surface of the building body. The gist.

  The locking part can be sharpened at the tip, and the locking part can be provided with a detent.

  According to the configuration of the first invention, since the heat insulating panel is waterproofed by attaching a mesh fabric to the surface side of the foam heat insulating material, the heat insulating panel is extremely light and has good heat insulating performance. . As the foam insulation, closed-cell foams made of various heat-insulating synthetic resins such as phenol foam, polystyrene foam, rigid urethane foam, isocyanurate foam, and polyethylene foam can be used. For example, a flat carbon fiber bundle having a filament number of 6000 to 48000 and a fineness of 2000 to 30000 denier is woven into a mesh shape having a mesh size of several centimeters to several tens of centimeters as warp yarns and weft yarns. It can be made with eyes closed. In addition, the warp and weft of the mesh fabric are the above-mentioned carbon fiber bundles and the appropriate number ratio of high-strength fiber bundles such as flat vinylon, acrylic, and Kepler having a filament number of 200 to 10,000 and a fineness of 1000 to 20000 denier. You may weave with. Moreover, the waterproof finishing process can use the coating material excellent in weather resistance and waterproofing, such as an acrylic resin type and an ethylene vinyl acetate resin type, for example.

  The thermal insulation panel is provided with a gap equivalent to the thickness of the base part of the mounting bracket between the building and the building body by inserting the locking portion of the mounting bracket fixed to the outer wall surface of the building body into the foam insulation. Since it is attached, good heat insulation performance can be maintained over a long period of time. However, the mounting bracket is to be fixed by bonding the base part to the concrete outer wall surface of the building body, fixing the base part via an anchor bolt, or using these together. In addition, a heat insulation panel inserts and fixes a latching | locking part to a foam heat insulating material by driving so that it may press on the latching | locking part of the attachment metal fitting on the outer wall surface of a building body. At this time, the foam insulating material is brought into contact with the base portion, and the entire length of the locking portion is inserted into the foam insulating material, so that a gap corresponding to the thickness of the base portion can be provided between the building body and the wall. If a part of the base part side of the stop part is left and inserted into the foam heat insulating material, a gap larger than the thickness of the base part can be provided.

  The heat insulation panel is cut into a square or rectangle of an appropriate size and fixed using a plurality of mounting brackets per sheet. In addition, between the adjacent heat insulation panels, a waterproof joint finish is applied to prevent wind and rain from entering the gap between the building body. The heat insulation panel has a bending strength in the bulging direction through the reinforcing mesh fabric, so that it may be bent so as to bulge outward and thereby fall off from the locking part of the mounting bracket. Absent. However, the engaging portion can be adhered to the foam heat insulating material via the adhesive by applying an adhesive when inserted into the foam heat insulating material, and the fixing strength of the heat insulating panel can be further improved.

  According to the second invention, the locking portion is perpendicular to the outer wall surface by fixing the base portion to the outer wall surface of the building body. Therefore, when the heat insulating panel is pressed against this, the foam insulating material of the heat insulating panel is used. The insulation panel can be attached to the outer wall surface by being inserted. In addition, in order to raise the fixing strength of a heat insulation panel, a mounting bracket shall be fixed on an outer wall surface for every suitable space | interval, and two or more per heat insulation panel shall be used. One locking portion may be erected on the base portion, and two or more locking portions may be erected in a single row or double row on the large base portion. The locking portion can be formed into a thin plate shape, a round bar shape, a square bar shape, or the like so that it can be easily inserted into the foam heat insulating material of the heat insulating panel, and it is preferable to sharpen the tip. In addition, the locking part may form a detent at the tip part to prevent the heat insulation panel from falling off. By providing a stopper in the middle to restrict the depth of insertion into the foam heat insulating material, the heat insulation panel and the building drive are provided. You may set the space | gap between bodies appropriately.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The external heat insulating structure of the building includes a mounting bracket 10 that is fixed to the concrete outer wall surface R1 of the building body R and a heat insulating panel 20 that is mounted to the outer wall surface R1 via the mounting bracket 10 (FIG. 1). ).

The heat insulating panel 20 is configured by sticking a reinforcing mesh fabric 22 on the surface side of the foam heat insulating material 21 and applying a waterproof finishing treatment 23. The reinforcing mesh fabric 22 is adhered to the foamed heat insulating material 21 through an adhesive 22a that has excellent adhesion to the foamed heat insulating material 21 and the waterproof finish 23, and has good intimacy with the mesh fabric 22 itself. At this time, the surface of the foam heat insulating material 21 may be subjected to an appropriate primer treatment. The thickness of the foam heat insulating material 21 is preferably about 50 to 80 mm, and the total weight of the heat insulating panel 20 is preferably several kg / m ² or less, particularly preferably about 2 kg / m ² or less.

  The mounting bracket 10 is configured by standing a locking portion 12 on a base portion 11 (FIGS. 1 and 2). The base portion 11 has a rectangular plate shape with a thickness t1, and counterbores 11a, 11a... Are formed at the four corners. The thickness t1 is preferably 5-30 mm. The locking portion 12 is a rectangular thin plate standing on one side of the base portion 11 and has a thickness t2≈1 to 5 mm.

  The mounting bracket 10 is connected to the outer wall surface of the building body R through the anchor bolts 13, 13... Inserted through the counterbore holes 11a, the adhesive (not shown) on the lower surface side of the base portion 11, or a combination thereof. Fix to R1 (Fig. 1). At this time, the mounting brackets 10 are arranged and fixed on the outer wall surface R1 at appropriate intervals so that a plurality of the mounting brackets 10 correspond to one heat insulating panel 20.

  Subsequently, when the heat insulating panel 20 is pressed toward the mounting bracket 10 on the outer wall surface R1 (in the direction of arrow A, A in FIG. 1), the locking portion 12 of each mounting bracket 10 is embedded in the foam insulating material 21. Plugged in. Therefore, when the entire length of the locking portion 12 is inserted into the foam heat insulating material 21 and the back surface side of the foam heat insulating material 21 comes into contact with the base portion 11, the heat insulating panel 20 is placed between the building body R and the base portion 11. A gap G corresponding to the thickness t1 can be provided and attached to the outer wall surface R1. The heat insulation panel 20 exhibits a good heat insulation performance through the gap G and the foam heat insulating material 21, and can maintain it over a long period of time. In addition, it is preferable to set the full length of the latching | locking part 12 to 60 to 80% of the thickness of the foam heat insulating material 21. FIG.

  In the above description, when the mounting bracket 10 is fixed to the outer wall surface R1 of the building body R only with an adhesive, it is not necessary to provide the counterbores 11a, 11a,. 1 and 2 can be easily manufactured in large quantities by cutting an aluminum extruded section having an L-shaped cross section corresponding to the base portion 11 and the locking portion 12 to the width of the locking portion 12. Can be produced. Note that the extruded shape member may have a T-shaped cross section, and the locking portion 12 may be erected on the center line of the base portion 11.

Other embodiments

  The mounting bracket 10 can be formed by bending downward legs 11b and 11b on two opposite sides of the rectangular base portion 11 and forming an upward locking portion 12 on the other side (FIG. 3). By bending one thin plate material, the entire shape of the base portion 11 having the thickness t1 with the legs 11b and 11b and the thin locking portion 12 can be easily manufactured.

  The mounting bracket 10 can sharpen the tip of the locking portion 12 (FIG. 4). 4A and 4B are an overall perspective view and a longitudinal sectional view, respectively. In addition, the latching | locking part 12 of FIG. 4 sharpens the front-end | tip, and is also formed with the detent 12a.

  The mounting bracket 10 may have a base portion 11 in a circular shape and a locking portion 12 in a round bar shape (FIG. 5). 5A and 5B are an overall perspective view and a partial cross-sectional side view, respectively. The locking portion 12 shown in FIG. 5 has a sharpened tip and is formed with three stages of detents 12a, 12a. In addition, a skirt-like leg 11b is formed on the entire circumference of the base portion 11, and holes 11c and 11c that replace the counterbore hole 11a are formed. The base portion of the locking portion 12 is welded by being inserted into the hole 11d in the center portion of the base portion 11.

  The rectangular base portion 11 may be formed by bending outwardly grounding portions 11e and 11e with holes 11c and 11c at the lower ends of the legs 11b and 11b (FIG. 6). Moreover, such a base part 11 can extend in one direction and can stand up the some latching | locking part 12,12 ... (FIG. 7). .. May be arranged in multiple rows by changing the shape of the base portion 11 instead of being arranged in a single row as shown in FIG.

  The mounting bracket 10 can be provided with stoppers 12b and 12b in the middle of the locking portion 12 (FIG. 8). 8A and 8B are an overall perspective view and a use state schematic diagram corresponding to FIG. 1, respectively. The stoppers 12b and 12b may be configured such that the gap G> t1 between the heat insulating panel 20 and the building driving body R by restricting the insertion depth d of the locking portion 12 with respect to the foam heat insulating material 21 of the heat insulating panel 20. it can. That is, the base portion 11 can use a thin plate material with a thickness t1 <G. Note that the stopper 12b may be entirely made of an extruded shape in accordance with the width of the locking portion 12, or may be provided in the middle of the round bar-shaped locking portion 12 (FIG. 9).

  In the above description, when the engaging portion 12 of the mounting bracket 10 is inserted into the foam heat insulating material 21 of the heat insulating panel 20, an adhesive is applied to at least the front end portion and inserted into the foam heat insulating material 21. It can be bonded to the foam insulation 21. The fixing strength of the heat insulation panel 20 by the mounting bracket 10 can be improved.

  Moreover, as long as there is no trouble, the mounting bracket 10 can combine each embodiment of FIGS. 1-9 arbitrarily. For example, in FIGS. 3 to 9, the counterbore holes 11 a, 11 a..., Holes 11 c, 11 c... Of each base portion 11 may be omitted, and the tips of the respective locking portions 12 in FIGS. Also good. 8 and 9 may be provided with one or more stages of detents 12a, and the base part 11 of FIG. 5 may take the form of FIG. 3 or FIG. Further, the stopper 12b in FIG. 9 may be formed in a square plate shape, and the locking portion 12 in each drawing may be formed in a square bar shape such as a square or a hexagon instead of a thin plate shape or a round bar shape.

  The heat insulating panel 20 is provided with the foam heat insulating material 21 on the back surface side through the adhesive provided in the gap G between the building driving body R in the form of a line in the vertical direction or dispersed in an island shape. You may adhere together with R. As the adhesive at this time, it is possible to use an adhesive mortar that does not drip easily, an epoxy adhesive containing a filler, or the like. However, when a spacer corresponding to the gap G is used in combination, a structural adhesive such as an arbitrary synthetic resin or rubber can be used.

Usage diagram Overall perspective view FIG. 2 equivalent view (1) showing another embodiment Whole structure explanatory drawing which shows other embodiment FIG. 4 equivalent explanatory view showing another embodiment FIG. 2 equivalent view (2) showing another embodiment FIG. 2 equivalent view (3) showing another embodiment FIG. 2 and FIG. 1 equivalent explanatory drawing which show other embodiment FIG. 2 equivalent view (4) showing another embodiment

Explanation of symbols

R ... Building body R1 ... Outer wall surface G ... Gap t1 ... Thickness 10 ... Mounting bracket 11 ... Base part 12 ... Locking part 12a ... Detent 20 ... Heat insulation panel 21 ... Foamed insulation 22 ... Mesh fabric 23 processing

Patent applicant Emerge Co., Ltd.
Hatada Shokai Co., Ltd.
Attorney Tadaaki Matsuda, Attorney

Claims (5)

  A mounting bracket that is fixed to the concrete outer wall surface of the building body and a heat insulating panel that is attached to the outer wall surface of the building body via the mounting bracket. The mounting bracket is fixed to the building body. A locking portion is erected on the base portion, and the heat insulation panel is subjected to a waterproof finishing treatment by attaching a reinforcing mesh fabric to the surface side of the foam heat insulating material, and the locking portion is inserted into the foam heat insulating material. Thus, an external heat insulating structure for a building is provided, wherein a space corresponding to at least the thickness of the base portion is provided between the building body and the building body.   The external heat insulating structure for a building according to claim 1, wherein the locking portion is bonded to the foam heat insulating material through an adhesive.   A base part fixed to the concrete outer wall surface of the building body and a locking part standing on the base part are provided, and the locking part is inserted into the foam heat insulating material of the heat insulating panel, thereby driving the building driver. A heat-insulating panel mounting bracket for an external heat-insulating structure of a building, wherein at least a gap corresponding to the thickness of the base portion is provided between the body and the heat-insulating panel is attached to the outer wall surface of the building body.   The said latching | locking part sharpens the front-end | tip, The mounting bracket of the heat insulation panel for the external heat insulation structures of the building of Claim 3 characterized by the above-mentioned. 5. The mounting bracket for a heat insulating panel for an outer heat insulating structure of a building according to claim 3, wherein a detent is provided in the locking portion.

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