JP4789574B2 - Exterior plate mounting structure - Google Patents

Description

  The present invention relates to a structure for attaching an exterior plate to a building.

  Conventionally, as a technique for securing positioning and reliable mounting of an exterior plate by a mounting base having a large number of through holes when mounting an exterior plate such as a large tile or stone on the outer wall of a building, Japanese Patent Application Laid-Open No. 2003-2003 There is a technique described in No. 213888 (Patent Document 1).

  As an exterior plate mounting structure described in Patent Document 1, an adhesive surface having a large number of through holes in the mounting base is disposed substantially parallel to the inner surface of the exterior plate and has a structure that ensures a gap with the base wall, In this structure, the exterior plate is bonded so that the elastic adhesive is entangled with the through hole of the bonding surface to form a bonded structure. By being configured in this manner, the exterior plate can be positioned and attached easily by securing the clearance to the front surface of the base wall by pressing and bonding the exterior plate to the adhesion surface.

  On the other hand, when the exterior plate is subjected to an external force in the out-of-plane direction or a forced displacement in the in-plane direction, a load corresponding to the thickness dimension of the elastic adhesive between the exterior plate and the adhesive surface is It acts on the elastic adhesive and is a major factor in determining the maximum yield strength. Here, since the load is larger as the thickness of the elastic adhesive is smaller (thin), it is desirable to manage the thickness of the elastic adhesive between the exterior plate and the adhesive surface to a predetermined thickness or more. it is conceivable that.

JP 2003-213888 A

  However, in the technique of Patent Document 1, since the exterior plate is pressed against the adhesive surface and adhered, it is difficult to manage the thickness of the elastic adhesive between the exterior plate and the adhesive surface to a predetermined dimension or more.

  In addition, when the exterior plate is stretched directly with the base wall on the building side with the elastic adhesive, it cannot be crushed and the thickness of the elastic adhesive is at least about 1 mm. Since the through hole is provided, when the exterior plate is pressed against the adhesive surface, the elastic adhesive is pushed through the through hole into the gap between the adhesive surface and the base wall. Compared with the case of stretching, the elastic adhesive is easily crushed, and the thickness of the elastic adhesive between the exterior plate and the adhesive surface may be crushed to about 0.5 mm or even thinner.

  Furthermore, if the exterior plate is larger than 400 mm, the distance between the exterior plate and the adhesive surface of the mounting base will be affected by the deformation caused by the solar heat and the exterior plate warping outward. However, depending on the thickness of the elastic adhesive, there may be a case where only about 0.5 mm is secured, so the vicinity of the outer periphery of the exterior plate warps outward, and the elastic adhesive between the exterior plate and the adhesive surface In order to ensure durability, it was necessary to design the elastic adhesive with deterioration characteristics and repeated fatigue characteristics more carefully in order to ensure durability.

  The present invention solves the above-mentioned problems, and the object of the present invention is to secure a thickness of an adhesive between the exterior plate and the adhesive surface having a through hole of the mounting base to a predetermined dimension or more, An object of the present invention is to provide a structure that stably secures the mounting strength of the exterior plate by the agent. In addition, even when the exterior plate is stretched by solar heat and deformed to warp outward, the tensile stress acting on the adhesive between the adhesive surface and the periphery of the exterior plate is reduced. The object is to provide a structure that relaxes. Furthermore, it is intended to provide a structure for easily configuring these configurations by construction site work.

In order to achieve the above object, the first configuration of the exterior plate mounting structure according to the present invention is such that the adhesive surface having the through holes of the mounting base provided in the base wall on the building side is substantially parallel to the inner surface of the exterior plate. And a structure in which a clearance is secured on the front surface of the base wall, and an exterior plate is bonded and attached so that an adhesive is entangled with a through hole of the adhesive surface to form a joint structure. A spacer having a predetermined thickness dimension is provided between at least two peripheral portions separated from each other by a distance between the adhesive surface and the inner surface of the outer plate across two or more adjacent outer plates. It is characterized by being provided in.

  Further, the second configuration of the exterior plate mounting structure according to the present invention is that, in the first configuration, the exterior plate has a rectangular shape, and one of the sides from four vertices with respect to the single exterior plate. A spacer having a predetermined thickness dimension is provided between the adhesion surface and the inner surface of the exterior plate on at least three of the four peripheral portions having a length range of / 3. And

The third configuration of the exterior plate mounting structure according to the present invention is characterized in that, in the first and second configurations, the spacer is provided with a hook, and the hook is hooked on the mounting base. And

  According to the first configuration of the exterior plate mounting structure according to the present invention, when the exterior plate is pressed against the adhesive surface, the adhesive is pushed out through the through hole into the gap between the adhesive surface and the base wall, and the adhesive is crushed. Even in such a case, a spacer having a predetermined thickness dimension is provided between the adhesive surface and the inner surface of the outer plate on at least two peripheral portions separated from each other with respect to one outer plate. Therefore, the thickness of the adhesive between the exterior plate and the adhesive surface must be more than the specified thickness according to the thickness of the spacer, and the exterior plate mounting strength by the adhesive can be trusted. It can have sex.

  The spacer is securely provided between the adhesive surface and the inner surface of the exterior plate, and is provided so that surface contact or multipoint contact can be made on the adhesive surface or the inner surface of the exterior plate when the exterior plate is pressed. The structure is preferable because the thickness of the adhesive having a predetermined thickness dimension or more can be surely ensured between the exterior plate and the adhesive surface.

  In addition, the adhesive surface having the through holes can be intentionally made as a smooth surface and can be brought into surface contact with the spacer, but in ceramic tiles or the like as the exterior plate, an uneven pattern may be formed on the inner surface, In such a case, in order for the spacer to reliably position the inner surface of the exterior plate with a predetermined dimension, a smooth portion having a dimension larger than the interval of the uneven pattern on the inner surface is provided, or smaller than the interval of the uneven pattern on the inner surface. It is more preferable to configure the spacer so that multiple points can be contacted at a pitch.

  Here, the arbitrary two peripheral portions are positions separated from each other, and when the exterior plate is attached, the thickness of the adhesive between the exterior plate and the adhesive surface is equal to or greater than a predetermined thickness dimension. While ensuring, it becomes easy to position the exterior plate stably. The two peripheral portions are desirably located at a distance of 1/5 or more, preferably 1/3 or more of the length of the exterior plate.

  In addition, in the case where the spacer installation position is only two peripheral portions separated from each other, the two peripheral portions are a distance of 1/5 or more, preferably 1/3 or more of the length dimension of the exterior plate. If the position is too close to one end side of the exterior plate, the thickness of the adhesive between the exterior plate and the adhesive surface on the other end side of the exterior plate is set to a predetermined thickness. However, it is still difficult to ensure, but at least at one end side, the thickness of the adhesive between the exterior plate and the adhesive surface can be secured to a predetermined thickness. Reliability can be given to the mounting strength of the plate.

  However, if the spacer installation position is only two peripheral parts that are separated from each other, there is a surface that is difficult to stabilize because the exterior plate is attached to the adhesive surface while maintaining parallelism. At times, in order to ensure that the thickness of the adhesive between the exterior plate and the adhesive surface is equal to or greater than a predetermined thickness dimension, it is a little nervous to attach the exterior plate to the adhesive surface while maintaining parallelism. It is necessary to distribute. Therefore, at least three peripheral parts that are spaced apart from each other, which are the positions where the spacers are installed, and a structure that forms a triangle by connecting any of the three peripheral parts is stable. It is easier to stick the plate to the bonding surface while maintaining parallelism, and it is more preferable.

  The adhesive is preferably an elastic adhesive, and examples of the elastic adhesive include a modified silicone-based, epoxy-modified silicone-based, urethane-based, silicone-based, elastic epoxy and the like having a low elastic coefficient and a high deformation following capability. Is preferably applicable.

Further, by installing the spacers across two or more outer plates in contact next, it is possible to reduce the installation number of the spacers, it is possible to increase the efficiency of construction work. For example, when the rectangular exterior plate is arranged in a joint shape (a shape in which vertical and horizontal joints are aligned in a straight line), by installing spacers across the four exterior plates that are adjacent vertically and horizontally, A considerable number of spacers can be installed, which is effective.

  As a material for the spacer, a stainless material or the like can be used when there is a concern about rainwater entering the back surface of the exterior plate, but a plastic material or the like is also applicable.

  Moreover, according to the 2nd structure of the exterior plate attachment structure which concerns on this invention, it is a rectangular-shaped exterior plate in the range of 1/3 length of each side from four vertices with respect to one exterior plate. A spacer having a predetermined thickness dimension is provided between the adhesive surface and the inner surface of the exterior plate on at least three of the four peripheral portions. When the exterior plate is attached, the spacer is attached to the exterior plate. It is possible to stably position the exterior plate while ensuring the thickness of the adhesive between the surface and a predetermined thickness dimension or more and providing reliability in the mounting strength of the exterior plate by the adhesive.

  That is, when the rectangular exterior plate is pressed against the adhesive surface, the adhesive is pushed through the through hole into the gap between the adhesive surface and the base wall, and even if the adhesive is about to be crushed, With respect to the exterior plate, spacers having a predetermined thickness dimension on at least three peripheral portions of four peripheral portions ranging from the four apexes to one third of each side are bonded surfaces and the exterior plate. Because it is provided between the inner surface and the adhesive, the thickness of the adhesive between the exterior plate and the adhesive surface is ensured to be equal to or greater than the predetermined thickness according to the thickness of the spacer. Since the mounting strength of the plate is reliable and the three peripheral parts are separated from each other by a distance of 1/3 or more of each side, the exterior plate can be positioned stably. .

  The spacer is securely provided between the adhesive surface and the inner surface of the exterior plate, and is provided so that surface contact or multipoint contact can be made on the adhesive surface or the inner surface of the exterior plate when the exterior plate is pressed. By adopting such a structure, the thickness of the adhesive having a predetermined thickness dimension or more can be surely ensured between the exterior plate and the adhesive surface, which is preferable.

  In addition, the adhesive surface having the through holes can be intentionally made as a smooth surface and can be brought into surface contact with the spacer, but in ceramic tiles or the like as the exterior plate, an uneven pattern may be formed on the inner surface, In such a case, in order for the spacer to reliably position the inner surface of the exterior plate with a predetermined dimension, a smooth portion having a dimension larger than the interval of the uneven pattern on the inner surface is provided, or smaller than the interval of the uneven pattern on the inner surface. It is more preferable to configure the spacer so that multiple points can be contacted at a pitch.

  In addition, if a structure having a spacer having a predetermined thickness dimension between the adhesive surface and the inner surface of the exterior plate is provided on all four peripheral portions ranging from the four apexes to one third of each side. Furthermore, the exterior plate can be stably adhered to the bonding surface while maintaining parallelism, which is more preferable.

Further, according to the third configuration of the exterior plate mounting structure according to the present invention, the hook of the spacer is hooked on the through hole or the notch of the mounting base, so that the simple construction work can be performed according to the layout of the exterior plate. A spacer can be provided at a predetermined position.

  At this time, the through hole of the mounting base may be a through hole provided other than the adhesive surface or a notch provided from the periphery of the mounting base, that is, the hook can be hooked by a simple construction work. It ’s fine.

  Furthermore, since the present invention has a structure having a large number of through holes on the bonding surface of the mounting base, if it is designed so that the hooks of the spacer and the through holes of the mounting base are engaged, Conveniently, spacers can be installed at any position according to the plate assignment. Thus, when it is desired to provide a spacer function only at the mounting base position corresponding to a predetermined position of the exterior plate in accordance with the allocation of the exterior plate, the mounting base having a large number of through holes, A hooked spacer designed to engage in a position can be provided with a spacer only at a desired position at a construction site, and can be a rational structure.

  In addition, the hook of the spacer may have an allowance allowance (play dimension) in the range of the gap dimension formed by the mounting base. In addition, it is preferable to attach the spacer with a margin of engagement because it is easy to install. In other words, when the exterior plate is pressed against the spacer and positioned, it is sufficient that the thickness of the adhesive between the exterior plate and the adhesive surface can ensure a predetermined thickness dimension.

  An embodiment of the exterior plate mounting structure according to the present invention will be specifically described with reference to the drawings. 1 is an explanatory plan view showing an exterior plate mounting structure according to the present invention, FIG. 2 is an explanatory sectional view taken along the line AA in FIG. 1, FIG. 3 is an explanatory sectional view taken along the line BB in FIG. FIG. 5 is a perspective view showing the configuration of various spacers for mounting the exterior plate, FIG. 6 is a plan explanatory view showing various examples of two peripheral portions separated from each other, and FIG. It is a plane explanatory view showing an example of the three peripheral parts.

  1 to 5, the mounting base 2 is fastened in parallel to the horizontal direction on the front surface of the foundation wall 3 on the building side. The mounting base 2 is fastened to the base wall 3 by anchors (not shown) through fixing holes 2d provided on the fixing surface 2c. In this way, the adhesive surface 2 a having the through hole 2 b of the mounting base 2 provided on the base wall 3 is disposed substantially parallel to the inner surface 1 c of the exterior plate 1. The exterior plate 1 has a structure in which a gap is secured on the front surface of the base wall 3 and is attached by attaching the elastic adhesive 5 to the through hole 2b of the adhesive surface 2a so as to form a joint structure.

  Here, as the elastic adhesive 5, it is possible to apply an adhesive having a low elastic coefficient, such as a modified silicone, epoxy-modified silicone, urethane, silicone, or elastic epoxy, and a high deformation followability. As other adhesives, hard epoxy, mortar, and the like are also applicable.

  A spacer 4 having a predetermined thickness dimension is provided between the adhesive surface 2 a and the inner surface 1 c of the exterior plate 1 at least at two peripheral portions separated from each other with respect to the single exterior plate 1. In addition, with respect to one rectangular-shaped exterior plate 1, at least three peripheral portions 1a out of four peripheral portions 1a that are 1/3 of the length from each of the four apexes are predetermined. The spacer 4 having the thickness dimension can be provided between the adhesive surface 2 a and the inner surface 1 c of the exterior plate 1.

In this embodiment, as shown in FIG. 1 and FIG. 4, four peripheral portions 1 a that are a range of a length of の of each side from the four vertices to one rectangular exterior plate 1 This is an example in which spacers 4 having a predetermined thickness dimension are provided between the adhesive surface 2 a and the inner surface 1 c of the exterior plate 1. Here, by installing the spacers 4 over two or more adjacent exterior plates 1 , the number of spacers 4 can be reduced, and the efficiency of construction work can be increased. In addition, when the rectangular exterior plate 1 is arranged in a joint shape (a shape in which vertical and horizontal joints are aligned in a straight line), the spacer 4 is installed across the four exterior plates 1 that are adjacent vertically and horizontally. Therefore, it is possible to reduce the number of installed spacers 4 and it is effective

  As shown in FIG. 2 and FIG. 3, the exterior plate 1 is provided with elastic adhesives 5 at one location on each of the four peripheral portions 1a so as to press the spacers 4 provided at the four locations, and the mounting base 2 is attached to the mounting base 2 with an elastic adhesive 5 so as to be entangled with the through hole 2b provided in the base plate 2 and to have a joining structure.

  Here, the four peripheral portions 1a that are in the range of one-third of the length from the four vertices of the rectangular exterior plate 1 are the four peripheral portions 1a indicated by hatching in FIG.

  The exterior plate 1 of the present embodiment is a rectangular shape, a large tile with a side of 600 mm, and a thickness of 10 mm.

  Moreover, as the base wall 3, a reinforced concrete wall, a lightweight aerated concrete (ALC) wall, a rasmol wall, a siding wall, etc. are applicable.

  The mounting base 2 is made of stainless steel and has a thickness of 1 mm, and the bonding surface 2a is provided at a position 6 mm from the base wall 3 so that a clearance 2f of 5 mm is secured. The mounting base 2 has a width dimension of 200 mm, and a self-weight receiving piece 2e is provided at a substantially middle position of the width dimension so that the weight of the exterior plate 1 is received.

  The through hole 2b provided in the bonding surface 2a of the mounting base 2 of the present embodiment is provided over the entire bonding surface 2a, but is partially omitted in FIG. The width dimension of the mounting base 2 may be about 100 mm, or may be longer than one side of a large tile 600 mm, and the mounting base 2 is provided on the entire surface of the base wall 3 on which the exterior plate 1 is provided. May be provided.

  The thickness of the exterior plate mounting spacer 4 of this embodiment is 2 mm, and the thickness of the elastic adhesive 5 between the exterior plate 1 and the adhesive surface 2a is 2 mm or more. Thus, since the thickness of the elastic adhesive 5 between the exterior plate 1 and the adhesive surface 2a is 2 mm or more, the exterior plate 1 is subjected to an external force in the out-of-plane direction, a forced displacement in the in-plane direction, and the like. In this case, it is possible to reduce the load of the elastic adhesive 5 generated according to the thickness dimension of the elastic adhesive 5 between the exterior plate 1 and the adhesive surface 2a, and to ensure stable maximum proof stress. The spacer 4 of this embodiment has a width of 70 mm and a length of 180 mm.

  5A and 5B show various examples of the spacer 4. In this way, the spacer 4 can be provided with the hook 4a, and the hook 4a can be hooked on the through hole 2b or the notch of the mounting base 2 so as to be installed across two or more adjacent exterior plates 1. Here, the spacer 4 has a width of 70 mm and a length of 180 mm, and is installed across four exterior plates 1 that are adjacent in the vertical and horizontal directions.

  The spacer 4 shown in FIG. 5A has a thickness of 2 mm and a width of 4 mm, and is provided with a hook 4a at one end and a hook member 4d connected to the other end by a van wire 4c. The hook 4a has an engagement allowance of 4 mm. When the thickness of the mounting base 2 is 1 mm, there is an allowance (play dimension) of 3 mm. Thus, since the spacer 4 has an allowance margin, it can be easily attached to the through hole 2b or the notch of the mounting base 2. By connecting the hook member 4 d that is locked to the exterior plate 1, the spacer 4 can have a function of preventing the exterior plate 1 from falling.

  Since the thickness of the spacer 4 is 2 mm, the thickness of the elastic adhesive 5 between the exterior plate 1 and the adhesive surface 2a can be managed as 2 mm or more. On the other hand, since the hook member 4d is provided at the other end of the spacer 4 with the van wire 4c, the inner surface 1c of the exterior plate 1 is cut, and the hook member 4d is engaged therewith so that the spacer 4 is At the same time as providing, mechanical engagement (or joining) for preventing the outer plate 1 from falling off can be performed by simple construction. Thus, the structure in which the hook 4a at one end of the spacer 4 is engaged with the mounting base 2 indirectly / directly and the hook member 4d at the other end is indirectly or directly engaged or joined to the exterior plate 1 is as follows. It is more preferable in terms of preventing the outer plate 1 from falling off.

  The spacer 4 shown in FIG. 5 (b) is provided with hooks 4a at both ends. One of the lower hooks 4a in FIG. 5 (b) is spring-like, and the hook 4a at one end is attached. The spacer 4 can be fixed by hooking the hook 4 a into the through hole 2 b of the base 2 and then driving the hook 4 a at the other end into the through hole 2 b of the mounting base 2.

  In addition, the spacer 4 shown in FIG. 5B has a width function as wide as 8 mm and a protrusion 4 b having a height of 2 mm, so that the thickness function of the spacer 4 is 4 mm. In this example, the thickness of the stainless steel plate used for the spacer 4 is 2 mm, but it is possible to manage the thickness of the elastic adhesive 5 between the exterior plate 1 and the adhesive surface 2a as 4 mm or more.

  Further, in the central cross cross portion 1b excluding the four peripheral portions 1a of the rectangular exterior plate 1, the adhesive surface 2a of the mounting base 2 and the inner surface 1c of the exterior plate 1, as shown in FIGS. A clearance 6 that is greater than the thickness of the spacer 4 and / or the total thickness of the spacer 4 and the mounting base 2 is provided between the spacer 4 and the base wall 3.

  Here, the central cross cross portion 1b excluding the four peripheral portions 1a of the rectangular exterior plate 1 is the central cross excluding the four peripheral portions 1a shown by hatching in the exterior plate 1 shown in FIGS. This is the cross 1b.

  In the present embodiment, a clearance 6 is provided between the inner surface 1c of the exterior plate 1 and the base wall 3, and a clearance 6 having a total thickness of 8 mm or more including the thickness 2 mm of the spacer 4 and the thickness 6 mm of the mounting base 2 is secured. However, in the vicinity of the AA cross-sectional position of FIG. 1 shown in FIG. 2 and its symmetrical position (near the lower end of the central cross cross 1b), the clearance 6 is formed between the inner surface 1c of the exterior plate 1 and the adhesive surface 2a of the mounting base 2. The clearance 6 is between them, and the thickness of the spacer 4 is 2 mm or more. In this example, the elastic adhesive 5 is not interposed in the clearance 6 portion.

  Thus, the exterior plate 1 is provided with a clearance 6 that is equal to or greater than the total thickness of the spacer 4 and the mounting base 2 between the inner surface 1c of the exterior plate 1 and the base wall 3 at the central cross cross 1b. 2 or the AA cross-sectional position of FIG. 1 shown in FIG. 2 or the like, a clearance 6 larger than the thickness of the spacer 4 is provided between the inner surface 1c of the exterior plate 1 and the adhesive surface 2a of the mounting base 2. Since the elastic adhesive 5 is not interposed in the clearance 6, the central cross cross 1 b of the exterior plate 1 can be deformed closer to the base wall 3 than the adhesive surface 2 a of the mounting base 2. Therefore, it becomes possible to reduce the tensile stress that repeatedly acts on the elastic adhesive 5 in the peripheral portion 1a of the exterior plate 1, and the deterioration characteristics and repeated fatigue characteristics of the elastic adhesive 5 are taken into consideration. Hisashi design becomes relatively easy.

  In the present embodiment, the elastic adhesive 5 is not interposed in the clearance 6 between the inner surface 1 c of the outer plate 1 and the bonding surface 2 a of the mounting base 2 or the base wall 3 in the central cross cross 1 b of the outer plate 1. Although the structure is illustrated, the elastic adhesive 5 may be interposed in the clearance 6.

I.e., a structure for bonding the by interposing an adhesive clearance 6 and the inner surface 1c of the outer plate 1 and the bonding surface 2a or the base wall 3, had or have a structure that does not intervening adhesive clearance 6 I can do it.

  When the elastic adhesive 5 is interposed in the clearance 6, the effect of reducing the tensile stress that repeatedly acts on the elastic adhesive 5 in the peripheral portion 1 a of the exterior plate 1 becomes small. Whether or not the elastic adhesive 5 is interposed in the central cross cross 1b of the exterior plate 1 is comprehensive, including other aspects such as securing out-of-plane proof strength against wind pressure and impact resistance to flying objects. However, from the viewpoint of durability design in consideration of deterioration characteristics and repeated fatigue characteristics of the elastic adhesive 5, a structure in which the elastic adhesive 5 is not interposed in the clearance 6 is more preferable.

  In FIG. 2, a cross-sectional explanatory view at the position AA in FIG. In this AA position, the adhesive surface 2a of the mounting base 2 is continuously arranged, and the clearance 6 in the central cross cross portion 1b of the exterior plate 1 is equal to or greater than the thickness of the spacer 4, and within that range, When the exterior plate 1 is warped, it can be deformed closer to the bonding surface 2a. The deformation state is schematically shown by a dotted line in FIG.

  In FIG. 3, a cross-sectional explanatory view at the BB position in FIG. 1 is schematically enlarged by about 10 times in the thickness direction. At this BB position, the mounting base 2 is disposed in the four peripheral portions 1a, and the clearance 6 in the central cross cross portion 1b of the exterior plate 1 is greater than the total thickness of the thickness of the mounting base 2 and the spacer 4 Within this range, when the exterior plate 1 is warped, it can be deformed closer to the base wall 3. The deformation state is schematically shown by a dotted line in FIG.

  6A and 6B illustrate a state in which the outer plate 1 has a rectangular shape, and the spacer 4 is provided in each of the two peripheral portions 1d that are separated from each other. is there. In the example of FIG. 6A, the two peripheral portions 1d are arranged at a substantially central position separated from each other by a distance of 1/5 of one side of the exterior plate 1, and the two peripheral portions 1d Each of the spacers 4 is provided.

  In the example of FIG. 6B, similarly, the two peripheral portions 1d are disposed at positions diagonally opposite to each other by a distance of 1/5 of one side of the exterior plate 1. A spacer 4 is provided across the two peripheral portions 1d.

  FIG. 7 illustrates a state in which the outer plate 1 has a rectangular shape, and the spacers 4 are provided on the three peripheral portions 1e that are separated from each other. The three peripheral portions 1e are arranged at three positions, that is, an upper central portion and lower both end portions that are separated from each other by a distance of 1/5 or more of one side of the exterior plate 1. In FIG. 7, the separation distance between the upper peripheral portion 1 e and the lower peripheral portion 1 e is separated by a distance of １ ／ of one side of the exterior plate 1. The exterior plate 1 is separated by a distance of 1/3 of one side. In this way, by connecting the three peripheral portions 1e to form a triangle, the exterior plate 1 can be more stably attached to the bonding surface 2a than the example shown in FIG. 6 while maintaining parallelism. It becomes easy to do.

  In general, the thickness of the spacer 4 is preferably 0.8 mm or more and 10 mm or less. A more preferable range is 1.5 mm or more and 5 mm or less. The thickness of the spacer 4 to be secured also depends on the deterioration characteristics of the elastic adhesive 5 depending on the deformation follow-up performance of the elastic adhesive 5 and whether the wall surface by the exterior plate 1 is kept for many years. Furthermore, it depends on physical properties such as the size of the exterior plate 1 and the coefficient of thermal expansion. On the other hand, the in-plane movement due to the difference in the movement of the base wall 3 on the building side and the exterior plate 1 varies depending on conditions, and is designed in consideration of these many elements.

  For example, if the size of the exterior plate 1 is 600 mm and the in-plane movement is 0.5 mm, the thickness of the spacer 4 is 0.5 mm if the elastic adhesive 5 having excellent deformation following performance is employed. Even when the thickness of the elastic adhesive 5 between the adhesive surface 2a and the adhesive surface 2a is secured to about 0.5 mm, the initial value is considered to be sufficiently followable in the in-plane movement, Considering the deterioration characteristics of the elastic adhesive 5 and considering the service life of 50 years and 100 years, it is necessary to secure the thickness of the elastic adhesive 5 between the exterior plate 1 and the adhesive surface 2a around 2 mm. It is considered desirable.

  In order to secure the thickness of the elastic adhesive 5 between the exterior plate 1 and the adhesive surface 2a, a predetermined effect can be obtained by arranging the spacer 4 regardless of the outer dimensions of the exterior plate 1. However, when the outer dimension of the exterior plate 1 is a small dimension such as less than 300 mm, the spacer 4 is not located at the periphery of the exterior plate 1 but only at the center of the exterior plate 1 (side of the exterior plate 1). Compared with the arrangement of the spacer 4 less than 1/5 length dimension), the exterior plate 1 is adhered to the adhesive surface 2a while maintaining the parallelism to ensure the thickness of the elastic adhesive 5. Easy to stabilize. The outer dimension of the outer plate 1 is preferably larger, and the outer dimension of the outer plate 1 is preferably 300 mm or more, and more preferably 400 mm or more.

  As an application example of the present invention, it can be suitably used as a structure for attaching an exterior plate to a building.

It is a plane explanatory view showing the exterior plate attachment structure concerning the present invention. It is AA cross-section explanatory drawing of FIG. It is BB sectional explanatory drawing of FIG. It is plane explanatory drawing of an exterior plate. It is a perspective view which shows the structure of the various spacers for exterior plate attachment. It is a plane explanatory view showing various examples of two peripheral parts separated from each other. It is a plane explanatory view showing an example of three peripheral parts which are separated from each other.

DESCRIPTION OF SYMBOLS 1 ... Exterior plate 1a ... Peripheral part 1b ... Central cross cross part 1c ... Inner surface 1d ... Peripheral part 1e ... Peripheral part 2 ... Mounting base 2a ... Adhesive surface 2b ... Through-hole 2c ... Fixed surface 2d ... Fixed through-hole 2e ... Own weight Receiving piece 2f ... gap 3 ... base wall 4 ... spacer 4a ... hook 4b ... projection 4c ... van wire 4d ... hook member 5 ... elastic adhesive 6 ... clearance

Claims (3)

The adhesive surface having the through holes of the mounting base provided on the base wall on the building side is disposed substantially parallel to the inner surface of the exterior plate and has a structure in which a gap is secured on the front surface of the base wall, and the adhesive is In the structure that attaches and attaches the exterior plate so that it becomes entangled with the through hole of the bonding surface,
The adhesive surface and the exterior plate straddle two or more adjacent exterior plates with a spacer having a predetermined thickness dimension in at least two peripheral portions separated from each other with respect to one exterior plate An exterior plate mounting structure provided between the inner surface and the inner surface. The exterior plate has a rectangular shape, and at least three peripheral portions of four peripheral portions that are one-third of the length from the four vertices to the single exterior plate are provided in a predetermined range. The exterior plate mounting structure according to claim 1, wherein a spacer having a thickness dimension is provided between the adhesion surface and the inner surface of the exterior plate. The exterior plate mounting structure according to claim 1 or 2 , wherein a hook is provided on the spacer, and the hook is hooked on the mounting base.

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