JP2013167132A - Connection structure of exterior material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection structure of an exterior material which forms an exterior facing of a building or a construction and improves especially wind pressure resistance performance.SOLUTION: In a connection structure of a long exterior material A having male and female connection structures at upper and lower ends of a decorative surface (a), a male connection part 4 is formed of an engaging groove 14 whose lower end is recessed upward, an inclined piece 11 formed so that the lower end of an indoor side surface of the engaging groove 14 inclines toward the indoor side, an insertion piece 12 formed by hanging the lower end of the inclined piece 11 downward, and a drop-off preventing piece 13 projected by inclining the tip of the insertion piece 12 upward on the outdoor side, a female connection part 5 is formed of a fitting groove 22 whose upper end is recessed downward, and inclined surface 17 formed so that the lower end of an outdoor side surface of the fitting groove 22 inclines toward the indoor side, and a drop-off preventing groove 19 formed by recessing the middle of the inclined surface 17 toward the outdoor side, and the insertion piece 12 is inserted into the fitting groove 22 to be connected.

Description

  The present invention relates to an exterior material for building an exterior of a building or a structure, and more particularly to a connection structure of exterior materials with improved wind pressure resistance.

  In general, wall materials for vertical construction are marketed that are processed by roll forming metal plate materials and have excellent water leakage resistance and strength after construction, especially strength against the force acting on the outer surface due to wind etc. . (For example, see Patent Documents 1 to 3).

JP-A-6-240839 JP-A-6-307056 Japanese Patent Laid-Open No. 11-172892

  Patent Documents 1 and 2 both provide a building outer wall material for vertical stretching that has excellent water leakage resistance and strength after construction, and the engaging piece is locked to the groove-shaped recess in the engaging piece. Is. However, since the outer wall material cannot be removed after the construction, no mistakes are allowed in the construction, and there is a big problem in workability. Reference 3 is a horizontal siding board in which a core material is formed between a metal surface material and a back surface material. This type of siding board is lightweight, has good workability, and is widely used. The part was weak in strength and had a weak point in wind pressure resistance.

  In order to solve such disadvantages, the present invention has a long exterior material connection structure having a male-female connection structure at the upper and lower ends of the decorative surface. An engaging groove, an inclined piece formed so that the lower end of the engaging groove is inclined to the indoor side, an inserted piece that hangs downward on the lower end of the inclined piece, and the tip of the inserted piece upward on the outdoor side The female connection part is formed with a fitting groove whose upper end is recessed downward, and the outdoor side surface of the fitting groove is inclined so that the lower end is inclined indoors. The present invention relates to a connecting structure of exterior members, which are formed from a surface and a drop-off preventing groove that is recessed in the middle of an inclined surface, and is inserted and inserted into a fitting groove.

  According to the connecting structure of exterior materials according to the present invention, (1) when a negative wind load (force to pull the wall) is received from the indoor side in the wind pressure resistance performance test of the wall body, the drop-off prevention piece is inclined. By being caught in the drop-off preventing groove formed on the inclined surface, the connection between the exterior materials A is not released, and the wind pressure resistance is improved. (2) By the inclined piece formed in the male connecting portion and the inclined inclined surface formed in the female connecting portion, the drop preventing piece can be reliably caught in the drop preventing groove. (3) Since the inclined piece and the inclined surface are formed with the lower end inclined to the indoor side and the upper end inclined to the outdoor side, the drop-off preventing piece is reliably caught in the drop-off preventing groove formed in the middle. (4) Even when negative pressure is applied from the indoor side, when the deformation of the exterior material is to be restored, the inclined piece and the inclined surface follow the deformation to be restored to the shape after the exterior material is deformed. The exterior material can be restored to its original state. (5) By forming the inclined surface, the shape of the fitting groove is wide and the tapered shape is formed toward the back, so the tip of the insertion piece is securely fixed at the innermost part of the fitting groove after construction. In addition, the insertion piece can be surely inserted into the fitting groove, and even if a drop-off preventing piece is formed at the tip of the insertion piece, it can be removed after construction, and there is no problem in workability. (6) The wind pressure resistance can be improved without being affected by the structure of the exterior material (thickness, working width, steel plate thickness, resin density, adhesive strength, mating depth) that affects the wind pressure resistance. There are features and effects.

It is sectional drawing which shows the connection structure of the exterior material which concerns on this invention. It is sectional drawing which shows the representative example of the exterior material used for the connection structure of the exterior material which concerns on this invention. It is a partial expanded sectional view which shows the typical example of the exterior material used for the connection structure of the exterior material which concerns on this invention. It is sectional drawing which shows the construction order of the connection structure of the exterior material which concerns on this invention. It is sectional drawing which shows the construction order of the connection structure of the exterior material which concerns on this invention. It is sectional drawing which shows the construction state of the connection structure of the exterior material which concerns on this invention. It is sectional drawing which shows the construction state of the connection structure of the exterior material which concerns on this invention. It is sectional drawing which shows the construction state of the connection structure of the exterior material which concerns on this invention. It is sectional drawing which shows the other Example of the connection structure of the exterior material which concerns on this invention.

  Hereinafter, an embodiment of a connecting structure for exterior materials according to the present invention will be described in detail with reference to the drawings. That is, FIG. 1 is a cross-sectional view showing a connecting structure of exterior materials according to the present invention, and FIGS. 2, 3A, and 3B are a surface material 1 and a back material used in the connecting structure of exterior materials according to the present invention. 2 is an exterior material A in which a core material 3 made of, for example, a synthetic resin foam is sandwiched. In addition, P is a packing formed in a continuous shape to enhance waterproofness.

  As an example of the overall shape of the exterior material A, as shown in FIGS. 2, 3 (a) and 3 (b), a core material 3 is sandwiched between a surface material 1 and a back material 2 made of a long and thin metal plate. And formed with a male connecting portion 4 formed at the lower end in the width direction and a female connecting portion 5 formed at the upper end, and a lower side wall 6 formed at the lower end of the decorative surface 6 and an upper side wall 7 formed at the upper end. It is.

  More specifically, the male connector 4 includes a lower side wall 6 in which the lower end of the vertical surface-shaped decorative surface a is bent indoors, a lower edge 8 that protrudes upward from the tip of the lower side wall 6, and a decorative surface a and a lower side. A cover piece 8a composed of a side wall 6 and a lower edge 8, an innermost piece 9 in which the tip of the lower edge 8 is bent indoors, and an inclined piece that protrudes by inclining the tip of the innermost piece 9 downward indoors 11, an engagement piece 10 composed of an insertion piece 12 in which the tip of the inclined piece 11 hangs downward, a drop-off prevention piece 13 that protrudes with the tip of the insertion piece 12 inclined upward on the outdoor side, and a lower edge 8, an innermost piece 9, and an engagement groove 14 formed of an engagement piece 10. Reference numeral 15 denotes a space.

  The female connecting portion 5 has an upper wall 7 projecting the upper end of the decorative surface a toward the indoor side, a joint ground 16 projecting the tip of the upper wall 7 upward, a tip of the joint ground 16 being bent toward the indoor side and a lower part. Inclined surface 17 that is inclined and projected indoors, fitting surface 18 formed from joint surface 16 and inclined surface 17, drop-off preventing groove 19 in which a part of inclined surface 17 is recessed to the outdoor side, The support surface 20 formed by the drop-off prevention groove 19, the fixed surface 21 projecting upward from the tip of the inclined surface 17, the fitting groove 22 formed from the inclined surface 17 and the fixed surface 21, and the tip of the fixed surface 21 Is formed from a tongue surface 22 that is folded back.

In FIG. 3, α is a housing, β is a fixture, and γ is a connecting portion.

  The surface material 1 and the back material 2 are thin metal plates such as iron, aluminum, copper, stainless steel, titanium, aluminum / zinc alloy plated steel plate, galbarium steel plate, enamel steel plate, clad steel plate, laminated steel plate (PVC steel plate, etc.), sandwich steel plate (control) Corrugated steel sheets, etc.), vinyl chloride resin, polycarbonate resin, etc. (including color plates coated with various colors, of course) formed into various shapes by roll molding, press molding, extrusion molding, etc., or inorganic materials Are formed into various arbitrary shapes by extrusion molding, press molding, autoclave nurturing and the like. Also, as the back material 2, aluminum vapor-deposited paper, kraft paper, asphalt felt, metal foil (Al, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, aluminum hydroxide paper, glass fiber nonwoven fabric Or a laminate of two or more kinds, or a sheet-like material that has been waterproofed or flame-retardant treated.

  The core material 3 is made of a synthetic resin foam such as polyurethane foam, polyisocyanurate foam, phenol foam, vinyl chloride foam, polyethylene foam, polystyrene foam, urea foam, etc., and particularly when fire resistance is required. Is formed by mixing a stock solution of a resol type phenol, a curing agent, and a foaming agent, discharging the mixture onto the back surface side of the surface material 1 or the back material 2, and heating to react, foam and cure. In addition, the core material 3 includes lightweight aggregates (perlite grains, glass beads, gypsum slag, talc stone, shirasu balloon, aluminum hydroxide, etc.), fibrous materials (glass wool, rock wool, carbon fiber, Graphite and the like) can be mixed to improve fire resistance and fire resistance. Of course, an inorganic material such as rock wool, glass wool or ceramic wool may be used as the core material 3.

  The exterior materials A are connected as shown in FIG. 3 by inserting a fitting surface 18 into the engagement groove 14 as shown in FIGS.

  As shown in FIG. 3A, the inclined piece 11 is formed so as to be inclined toward the indoor side. As shown in FIGS. 6 to 8, a negative pressure is applied from the indoor side in the wind pressure resistance performance test of the wall body. Is formed so that the fitting surface 18 moves along the inclined piece 11 formed to be inclined, and the tip of the drop-off prevention piece 12 is reliably caught in the drop-off prevention groove 19. The outer material A is prevented from peeling off.

  As shown in FIG. 1, the engaging groove 18 of the female connecting portion 5 is inserted into the engaging groove 14 to connect the exterior material A and to prevent the connecting portion γ from rattling.

  The insertion piece 12 and the drop-off prevention piece 13 are inserted into the fitting groove 22, and the drop-off prevention piece 13 portion is formed so as to contact the innermost portion of the fitting groove 22 and the inclined surface 17, and the connecting portion γ portion is loose. It is fixed without sticking.

  The inclined surface 17 is formed so as to be inclined toward the indoor side as shown in FIG. 3 (b). As shown in FIGS. 6 to 8, the negative pressure is increased from the indoor side in the wind pressure resistance performance test of the wall body. Is formed so that the drop-off prevention piece 13 moves along the inclined surface 17 formed to be inclined, and the tip of the drop-off prevention piece 13 is reliably caught in the drop-off prevention groove 19. The outer material A is prevented from peeling off.

  In addition, since the inclined piece 11 and the inclined surface 17 are formed with the lower end inclined to the indoor side and the upper end inclined to the outdoor side as shown in the figure, the falling prevention piece 13 to the falling prevention groove 19 formed in the middle is formed. Deformation in which the inclined surface 17 tries to return to the shape after the deformation of the exterior material A when the deformation of the exterior material A tries to return to the original state even after the negative pressure is applied from the indoor side. The exterior material A can be restored to the original state as shown in FIG.

  Moreover, since the shape of the fitting groove 22 is widened by the formation of the inclined surface 17 and becomes tapered toward the back, the tip of the insertion piece 13 is surely inserted into the innermost part of the fitting groove 22 after construction. The insertion piece 12 is surely inserted into the fitting groove 22, and even if the drop-off prevention piece 13 is formed at the tip of the insertion piece 12, it can be removed after the construction. There is no problem at all.

  Thus, the exterior material A that does not interfere with the construction even if the drop-off prevention piece 13 is formed at the tip of the insertion piece 12 and can reliably prevent the drop-off even when negative pressure is applied from the indoor side. It will be.

  Further, as shown in FIGS. 3A and 3B, when the opening width of the fitting groove 22 is W and the height of the drop-off preventing piece 14 is W1, the relationship is W> W1.

  Then, the construction sequence of the connection structure of exterior materials is demonstrated using FIGS. First, as shown in FIG. 4, the fixing surface 21 of the lower packaging material A1 as shown in FIG. 2, FIG. 3 (a) and FIG. As shown in FIG. 1, the insertion piece 12 of the outer packaging material A is inserted into the fitting groove 22 of the lower packaging material A as shown in FIG.

  In the wall formed by the connecting structure of the exterior material according to the present invention formed in this way, as shown in FIG. 6, when negative pressure is applied from the indoor side in the wind pressure resistance performance test of the wall, As shown in FIGS. 7 and 8, the drop-off prevention piece 13 is caught in the drop-off prevention groove 19, so that the exterior material A can be prevented from peeling off.

  What has been described above is only one embodiment of the connecting structure of the exterior material according to the present invention, and the exterior material A can also be formed as shown in FIGS.

A exterior material a decorative surface P packing α frame β fixing tool γ connecting portion 1 surface material 2 back surface material 3 core material 4 male connecting portion 5 female connecting portion 6 lower side wall 7 upper side wall 8 lower edge 8a cover piece 9 innermost Piece 10 Engagement piece 11 Inclined piece 12 Insertion piece 13 Drop-off prevention piece 14 Engagement groove 15 Space 16 Joint surface 17 Inclined surface 18 Fitting surface 19 Drop-off prevention groove 20 Support surface 21 Fixing surface 22 Fitting groove 23 Tongue surface

Claims (1)

In the connecting structure of a long exterior material having a male-female connecting structure at the upper and lower ends of the decorative surface, the male connecting part has an engaging groove with the lower end recessed upward, and an indoor side surface of the engaging groove. From an inclined piece formed such that the lower end is inclined indoors, an insertion piece in which the lower end of the inclined piece is suspended downward, and a drop-off preventing piece that protrudes with the tip of the insertion piece inclined upward on the outdoor side The female connecting portion is formed with a fitting groove whose upper end is recessed downward, an inclined surface formed such that the lower end of the fitting groove is inclined to the indoor side, and the middle of the inclined surface. A connecting structure for exterior materials, characterized in that it is formed from a drop-off preventing groove recessed on the outdoor side, and an insertion piece is inserted and connected to the fitting groove.

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