JP4452766B2 - External insulation panel mounting structure - Google Patents

Description

  The present invention relates to a structure for mounting an external heat insulation panel using an extruded cement board, and more particularly to an improved technique for facilitating the work of attaching a heat insulating material to an extruded cement board and making it unnecessary to weld a mounting bracket.

  Since the extrusion-molded cement board has a hollow portion that is extruded with a cross-sectional shape of a core, it is lightweight, excellent in workability, surface design, and earthquake resistance, and is often used as an interior / exterior material for buildings. Although this extrusion-molded cement board has a hollow portion, it has excellent heat insulation performance. However, when compared with lightweight cellular concrete (ALC) having the same outer wall material, the performance is slightly lowered by using a high-strength molding material. For this reason, if an extruded cement board requires higher heat insulation performance, a plate-like heat insulating material (for example, “Styrofoam”: trade name) is attached to the back side of the extruded cement with an adhesive, or extruded. After the molding cement plate was constructed, a heat insulating material such as urethane was sprayed on the back side to give higher heat insulating performance.

No. 8-4487 Japanese Patent No. 2999980

However, if a plate-like heat insulating material is pasted with an adhesive, the working environment is deteriorated by evaporation of the solvent, and easy replacement at the time of breakage is difficult. In addition, when a heat insulating material such as spray urethane is sprayed after the installation of the extrusion-molded cement board, the spraying work itself may deteriorate the working environment. Furthermore, the curing for spraying work was necessary, and the workability was greatly reduced.
By the way, after an extrusion-molded cement board attaches a panel to a foundation | substrate, in order to prevent the fall from a foundation | substrate by rotation of a mounting bracket (Z clip), you have to weld a Z clip to a foundation | substrate. Therefore, when the heat insulating material is affixed to the extrusion-molded cement board, the heat insulating material may be melted or ignited by a spark when welding the mounting bracket to the base. For this reason, in order to prevent such a situation, a curing etc. were needed so that a spark etc. might not reach to the heat insulating material affixed on the extrusion-molded cement board, and workability also fell by this.
In addition, a plate-shaped heat insulating material can be pasted after the construction of the extruded cement board, but pasting the plate-shaped heat insulating material after the construction becomes a hindrance to the base and the casing, and it is applied to the entire back surface of the extruded cement board. Affixing the insulation was an extremely difficult task.
On the other hand, Patent Document 1 describes a mounting bracket for a building panel that can prevent rotation of the mounting bracket. By using such a mounting bracket with anti-rotation function, it is not necessary to weld the mounting bracket. On the other hand, after removing the heat insulating material of the mounting bracket and mounting the panel on the base, the mounting bracket It was necessary to work after attaching the heat insulating material again to the part.
In Patent Document 2, a plurality of extrusion-molded cement plates are integrated into a mold body made of steel, and a heat insulating material is filled in the back side cavity formed by the mold body with urethane foam or the like. An outer thermal insulation panel that improves the performance is described. However, since this outer heat insulating panel is integrated with the extrusion-molded cement board, the panel becomes large, and it is inevitable that the transportability and workability deteriorate.
The present invention has been made in view of the above situation, and provides an attachment structure for an outer heat insulation panel that allows easy attachment of a heat insulating material to an extruded cement board and eliminates the need for welding of a fitting. Therefore, it aims at improving the installation workability of the panel for external heat insulation using an extrusion-molded cement board.

  In order to achieve the above object, according to the first aspect of the present invention, there is provided an external heat insulation panel mounting structure comprising a Z-clip for an external heat insulation panel comprising a plate-like heat insulating material attached to the back surface of an extruded cement board. An outer heat insulation panel mounting structure that is attached to the base angle member on the housing side using the at least a pair of protrusions extending in the extrusion direction on the back surface of the extruded cement board in which a hollow portion is formed in the extrusion direction. A protrusion is provided, and the protrusion is formed in a dove shape in which a cross-sectional shape perpendicular to the longitudinal direction is open toward the protruding tip, and a concave groove extending in the longitudinal direction is formed at the center of the protruding tip surface. A hole having a cross-section with a cross-section formed in the heat insulating material is inserted into the protrusion, and the heat insulating material is fixed to the back surface of the extruded cement plate, and is inserted from the groove into the hollow portion. The base end of the Z clip is It is fixed to the serial extruded cement boards, characterized in the that the base angle member is sandwiched between the tip and the ridge of the Z clip.

  In this external heat insulating panel mounting structure, the engaging groove of the heat insulating material is engaged with the ridge without using an adhesive. A ridge is formed over both ends in the panel extrusion direction, and the heat insulating material is securely held by the ridge. Since the adhesive is not used, it is possible to easily replace the insulating material when it is damaged. No need for spraying urethane or curing. Moreover, the operation | work which fills a foaming urethane in the back side cavity part formed with the mold body and the extrusion-molded cement board becomes unnecessary.

  The outer heat insulation panel mounting structure according to claim 2 is characterized in that a rotation stop projection to be inserted into the concave groove is provided at an end portion of the base end side of the Z clip.

  In this outer heat insulation panel mounting structure, the base end of the Z clip is fixed to the ridge with a bolt, and the rotation stop projection provided at the end of the Z clip base end is inserted into the groove of the ridge. The rotation of the Z clip around the bolt is restricted, and the falling off of the base due to the rotation of the Z clip is prevented. Therefore, it is not necessary to weld the Z clip to the base. In addition, there is no risk of the heat insulating material being melted or ignited by welding sparks. There is no need for curing so that sparks do not reach the insulation. In addition, since the rotation stopper projection can be inserted into the recessed groove through the heat insulating material, the heat insulating material of the Z clip portion is cut out, the panel is attached to the base, and the heat insulating material is attached again to the Z clip portion. Subsequent work is also unnecessary.

  The mounting structure for an outer heat insulating panel according to claim 3 is characterized in that a hard packing is sandwiched between the ridge and the base angle material.

  In this outer heat insulating panel mounting structure, a hard packing is sandwiched between the ridge and the base angle material, and a compressive load is received by the hard packing. That is, the extruded cement board is held by sandwiching the base angle material between the ridge and the tip of the Z clip whose base end is fixed to the ridge. At this time, if only a heat-insulating material that is easily deformed is inserted between the ridge and the base angle material, a gap is formed between the ridge and the base angle material, and the compressive load for holding is received. And rattling occurs. On the other hand, when the hard packing is inserted as in the present invention, the compression load is received, no rattling occurs, and the extruded cement board provided with the heat insulating material can be securely attached to the base angle material.

  The mounting structure for an outer heat insulating panel according to claim 4 is characterized in that the extruded cement board is stretched so as to extend the ridges in a lateral direction.

  In this outer heat insulation panel mounting structure, the extruded cement board is stretched horizontally, so that the ridge protruding on the back surface extends in the horizontal direction, and the ridge has a cross-sectional shape, The upper edge of the ridge extending in the horizontal direction is substantially V-shaped. Therefore, the engaging groove inserted into the ridge from above is inserted so that the heat insulating material is more closely attached to the back surface of the extruded cement board due to the load of the heat insulating material. Will increase.

  According to the outer heat insulation panel mounting structure according to the present invention, a protrusion is projected on the back surface of the extrusion-molded cement board, and the engagement groove having a cross-section with a hole formed in the heat insulating material is inserted into the protrusion. Since the heat insulating material is attached to the back surface of the extruded cement board, it is possible to easily attach the heat insulating material to the extruded cement board without using an adhesive. Moreover, since a protruding item | line extends over the both ends of a panel extrusion direction, a heat insulating material can be reliably hold | maintained at an extrusion-molded cement board. In addition, it is possible to easily replace the insulating material when it is damaged. There is no deterioration in the working environment when spraying urethane or the like. No curing of spraying work is required, and workability is not reduced. Unlike the structure in which urethane foam is filled in the back side cavity formed by the mold body and the extrusion-molded cement plate, the panel does not become large, and the transportability and workability do not deteriorate. As a result, the installation workability of the outer heat insulation panel can be improved.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a preferred embodiment of an external heat insulating panel mounting structure according to the invention will be described with reference to the drawings.
1 is a perspective view of a mounting structure for an outer heat insulation panel according to the present invention, FIG. 2 is a longitudinal sectional view of the mounting structure shown in FIG. 1, FIG. 3 is a transverse sectional view of the mounting structure shown in FIG. Is a longitudinal sectional view of the panel for outer heat insulation, and FIG. 5 is a perspective view of a Z clip.
In the present embodiment, first, a case where the extruded cement board 11 is horizontally stretched will be described as an example. Here, the term “horizontal stretch” refers to an attachment configuration in which the extrusion-molded cement board 11 is attached with the extrusion-molding direction as the lateral direction. Therefore, in horizontal stretch, the hollow part 11a of the extrusion-molded cement board 11 extends in the horizontal direction. On the contrary, the mounting form in which the hollow portion 11a extends in the vertical direction is referred to as vertical tension, which will be described later.

  The extrusion-molded cement board 11 comprises the panel 15 for external heat insulation by attaching the plate-shaped heat insulating material 13 to the back surface. The outer heat insulating panel 15 can be preliminarily provided with the heat insulating material 13 on the extruded cement board 11 at the time of factory shipment. In addition, at the time of factory shipment, the extrusion-molded cement board 11 and the heat insulating material 13 can be carried in the field separately, and the heat insulating material 13 can also be attached by the below-mentioned protrusion and the engagement groove | channel on the site. In any case, the outer heat insulating panel 15 is attached to the base angle material on the housing side using a Z clip with the heat insulating material 13 attached thereto.

Below, the attachment structure of the panel for outer heat insulation is demonstrated for every member.
The extrusion-molded cement board 11 has a hollow portion 11a formed in the extrusion direction, and a convex portion 11b and a concave portion 11c that are fitted vertically in the upper and lower ends. As shown in FIG. 2, the front joints of the upper and lower extruded cement plates 11 and 11 connected by fitting the convex portions 11b and the concave portions 11c are filled with a seal 17, and the rear joints are filled with horizontal gaskets. (EPOM sponge) 19 is inserted and rainwater intrusion is prevented.

  At least a pair of ridges 21 project from the back surface 11 d of the extruded cement plate 11, and the ridges 21 extend in the extrusion direction of the extruded cement plate 11. In the present embodiment, as shown in FIG. The ridge 21 is formed in a dovetail shape whose cross-sectional shape perpendicular to the longitudinal direction is open toward the projecting tip, and a concave groove 23 extending in the longitudinal direction is formed in the center of the projecting tip surface 21a. . In the present embodiment, the ridges 21 have a configuration in which the concave grooves 23 are formed in the dovetail protrusion front surface 21a. However, the ridges 21 are formed as a pair of parallel protrusions separated by the concave grooves 23. It may be configured. Even in this case, the cross-sectional shape of the pair of protrusions is the outer shape. The protrusions 21 can be engaged with the heat insulating material 13 as will be described later by adopting such a dovetail shape.

  The heat insulating material 13 is formed so as to substantially match the shape of the back surface of the extruded cement board 11. As for the heat insulating material 13, the engagement groove | channel 25 corresponding to the protruding item | line 21 is formed in the sticking surface to the back surface 11d of the extrusion-molded cement board 11. FIG. The engaging groove 25 is formed in a hole shape with a cross section so as to be fitted on the ridge 21. Therefore, the heat insulating material 13 in which the engaging groove 25 is inserted into the ridge 21 is engaged and held on the back surface 11d of the extruded cement plate 11 without using an adhesive.

  Bolt through holes 27 are formed in the concave grooves 23 of the ridges 21 on both sides in the width direction of the extruded cement plate 11, and bolts 29 are inserted into the bolt through holes 27. The bolt 29 fixes the base end 31 a of the Z clip 31. In addition, it is preferable that a bolt insertion slit 33 shown in FIG. 4 is formed in the heat insulating material 13 at a position coinciding with the bolt through hole 27.

  As shown in FIG. 4, the Z clip 31 is a Z-shaped mounting hardware in which a proximal end 31 a and a distal end 31 b are connected to each other with a step through a slant piece 31 c. An anti-rotation protrusion 31d is bent at the end on the base end 31a side, and the anti-rotation protrusion 31d is inserted into the concave groove 23, so that the Z clip 31 centered on the bolt 29 inserted into the fixing hole 31e. Regulate rotation.

  In this way, the base end 31a of the Z clip 31 is fixed to the ridge 21 by the bolt 29, and the rotation stop projection 31d provided on the base end 31a is inserted into the groove 23 of the ridge 21, so that the bolt 29 Rotation of the Z clip 31 around the center is restricted, so that the Z clip 31 is prevented from falling off from the ground, which will be described later, due to the rotation of the Z clip 31. Therefore, it is not necessary to weld the Z clip 31 to the base. Thereby, there is no possibility that the heat insulating material 13 is melted or ignited by welding sparks. Moreover, it is not necessary to perform curing so that sparks or the like do not reach the heat insulating material 13. Further, since the rotation preventing projection 31d can be inserted into the concave groove 23 through the heat insulating material 13, the heat insulating material 13 in the Z clip 31 portion is cut out, and the extruded cement board 11 is attached to the base, and then the Z clip. The subsequent work of attaching the heat insulating material 13 to the portion again becomes unnecessary.

  In the outer heat insulating panel 15 in which the heat insulating material 13 is engaged with the back surface 11d of the extrusion-molded cement board 11, the plate nut 37 is screwed into the bolt 29 inserted from the concave groove 23 into the hollow portion 11a. Thus, the base end 31 a is fixed to the ridge 21. A support piece 39 a of the base angle member 39 is sandwiched between the tip 31 b of the Z clip 31 and the ridge 21. As shown in FIG. 3, the connecting pieces 39 b of the base angle member 39 are welded to both side surfaces of the U-shaped bracket 43 welded to the housing 41. The lower end of the outer heat insulating panel 15 is supported by a weight receiving angle 45 welded to the base angle members 39 and 39. In FIG. 2, 47 indicates a washer and 49 indicates a spring washer.

  A hard packing 51 is sandwiched between the ridge 21 and the support piece 39a of the base angle member 39, and the hard packing 51 receives a compressive load. That is, the extrusion-molded cement board 11 is held by holding the support piece 39a of the base angle member 39 between the ridge 21 and the tip 31b of the Z clip 31 having the base end 31a fixed to the ridge 21. At this time, if only the heat insulating material 13 that is easily deformed is interposed between the ridges 21 and the support pieces 39a, a gap is generated between the ridges 21 and the support pieces 39a, and a compressive load for holding is maintained. Is not received, and rattling occurs. On the other hand, when the hard packing 51 is inserted as in the present invention, the compressive load is received, no rattling occurs, and the outer heat insulating panel 15 provided with the heat insulating material 13 is securely attached to the base angle material 39. Can be installed on. In addition, even if the protruding item | line 21 has the thick thickness of the extrusion-molded cement board 11, and does not arrange | position the heat insulating material 13 (or the thickness of the heat insulating material 13 is thin), it does not affect heat insulation performance as a panel.

  In the above configuration, since the extrusion-molded cement board 11 is horizontally stretched so as to extend the ridges 21 in the lateral direction, the ridges 21 protruding from the back surface 11d extend in the horizontal direction. And since the cross-sectional shape of the protruding item | line 21 is a dovetail shape, the upper edge of the protruding item | line 21 extended in a horizontal direction becomes a substantially V-groove shape. Therefore, the engaging groove 25 inserted into the ridge 21 from above is inserted so that the heat insulating material 13 is more closely attached to the back surface 11d of the extrusion-molded cement board 11 by the load of the heat insulating material 13, and is heat-insulated as compared with the vertical tension. The engagement reliability of the material 13 is increased.

Next, the case where the present invention is applied to the vertical stretching of an extruded cement board will be described.
FIG. 6 is a longitudinal sectional view of the mounting structure according to the present invention applied to vertical tension, and FIG. 7 is a transverse sectional view of the mounting structure shown in FIG. In addition, the same code | symbol is attached | subjected to the member same as the member shown in FIGS. 1-5, and the overlapping description shall be abbreviate | omitted.
The outer heat insulation panel mounting structure according to the present invention can also be applied to the case where the extruded cement board 11 is vertically stretched.
That is, as shown in FIG. 6, the outer heat insulating panel 15 is arranged such that the hollow portion 11 a extends in the vertical direction, and the lower end side is supported by the support piece 45 a of the weight receiving angle 45. The weight receiving angle 45 is welded to the housing side H steel material 49 via the angle material 47. A floor panel FP is laid on the upper surface of the housing-side H steel material 49, and a mortar 53 and an RW curing 55 are sequentially applied to the gap between the floor panel FP and the outer heat insulation panel 15.

  The extruded cement board 11 is attached to the support piece 57 a of the support angle 57 by the Z clip 31 on the upper end side. The support angle 57 is welded to the lower surface of the housing side H steel material 49. Furthermore, the interior side of the housing side H steel material 49 is covered with a fireproof coating 59.

  As described above, in the external heat insulation panel mounting structure according to the above-described embodiment, the engagement groove 25 of the heat insulating material 13 is engaged with the ridge 21 without using an adhesive. The ridges 21 are formed across both ends in the panel extrusion direction, and the heat insulating material 13 is securely held by the ridges 21. Since the adhesive is not used, it is possible to easily replace the insulating material when it is damaged. No need for spraying urethane or curing. Moreover, the operation | work which fills the foaming urethane in the back side cavity part formed with the mold body and the extrusion-molded cement board 11 becomes unnecessary.

  Therefore, according to the mounting structure of the outer heat insulating panel according to the present embodiment, the protrusion 21 is projected on the back surface 11d of the extruded cement plate 11 and the engagement groove 25 having a hole shape with a cross section formed in the heat insulating material 13 is formed. Since the heat insulating material 13 is engaged with the back surface 11d of the extruded cement board 11 by being inserted into the ridges 21, the heat insulating material 13 can be easily attached to the extruded cement board 11 without using an adhesive. Can be. Moreover, since the protruding item | line 21 extends over the both ends of a panel extrusion direction, the heat insulating material 13 can be reliably hold | maintained at the extrusion-molded cement board 11. FIG. In addition, it is possible to easily replace the insulating material when it is damaged. There is no deterioration in the working environment when spraying urethane or the like. No curing of spraying work is required, and workability is not reduced. Unlike the structure in which the back side cavity formed by the mold body and the extrusion-molded cement board 11 is filled with foamed urethane, the panel does not become large, and the transportability and workability do not deteriorate. As a result, the installation workability of the outer heat insulation panel 15 can be improved.

  Moreover, according to the mounting structure of the panel 15 for external heat insulation by this Embodiment, the protruding item | line 21 can be easily formed simultaneously with another site | part at the time of the extrusion molding of the extrusion-molded cement board 11. FIG. And the panel intensity | strength of the extrusion-molded cement board 11 can be raised because the several protruding item | line 21 is formed in the back surface 11d. Furthermore, compared to the conventional structure in which the Z clip 31 is directly bolted to the back surface 11d, the Z clip 31 is fixed to the thick ridge 21, so that the strength of the bolt fixing portion can also be improved.

It is a perspective view of the attachment structure of the panel for external heat insulation which concerns on this invention. It is a longitudinal cross-sectional view of the attachment structure shown in FIG. It is a cross-sectional view of the mounting structure shown in FIG. It is a longitudinal cross-sectional view of the panel for outer heat insulation. It is a perspective view of a Z clip. It is a longitudinal cross-sectional view of the attachment structure based on this invention applied to vertical tension. It is a cross-sectional view of the attachment structure shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Extrusion-molded cement board, 11a ... Hollow part, 11d ... Back surface, 13 ... Plate-shaped heat insulating material, 15 ... Panel for external heat insulation, 21 ... Convex strip, 21a ... Projection front end surface, 23 ... Concave groove, 25 ... Engagement Groove, 29 ... bolt, 31 ... Z clip, 31a ... base end, 31b ... tip, 31d ... rotation stop projection, 39 ... underlying angle material, 51 ... hard packing

Claims (4)

An outer heat insulation panel formed by attaching a plate-like heat insulating material to the back surface of an extruded cement board, and a mounting structure for an outer heat insulating panel attached to a base angle material on the housing side using a Z clip,
At least a pair of ridges extending in the extrusion direction protrudes from the back surface of the extruded cement board in which a hollow portion is formed in the extrusion direction,
The ridge is formed in a dove shape in which the cross-sectional shape perpendicular to the longitudinal direction is open toward the projecting tip, and a concave groove extending in the longitudinal direction is formed in the center of the projecting tip surface,
A hole with a cross-section with a cross-section formed in the heat insulating material is fitted into the ridge, and the heat insulating material is fixed to the back surface of the extruded cement plate,
The base end of the Z clip is fixed to the extruded cement board with a bolt inserted into the hollow portion from the concave groove, and the base angle material is sandwiched between the tip of the Z clip and the protruding strip. A mounting structure for an outer heat insulating panel characterized by   The outer heat insulation panel mounting structure according to claim 1, wherein an anti-rotation protrusion to be inserted into the concave groove is provided at an end of the base end side of the Z clip.   The external heat insulating panel mounting structure according to claim 1, wherein a hard packing is interposed between the protruding line and the base angle material. The mounting structure for an outer heat insulating panel according to any one of claims 1 to 3, wherein the extruded cement board is stretched so as to extend the ridges in a lateral direction.

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