JP2016065450A - Exterior material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an exterior material with improved wind pressure resistance, which constitutes an exterior cladding of an architecture and a structure.SOLUTION: A long exterior material A has male-female connecting structures at upper and lower ends of a decorative surface a. A male connecting part 4 comprises an engaging groove 14 hollowed upward at its bottom edge, an inclined piece 11 formed by inclining a bottom edge of an indoor side face of the engaging groove 14 toward indoor side, a dropout preventive piece 13 formed by making a tip of the inclined piece 11 protrude substantially horizontal direction toward outdoor side. A female connecting part 5 comprises a fitting groove 22 hollowed downward at its upper end, an inclined face 17 formed by inclining the bottom edge of the outdoor side face of the fitting groove 22 toward indoor side and a dropout preventive groove 19 formed by hollowing an intermediate part of the inclined face 17 toward outdoor side.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an exterior material for forming an exterior of a building or a structure, and particularly to an exterior material having 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 drawbacks, the present invention provides a long exterior material having a male-female connection structure at the upper and lower ends of the decorative surface. The male connection portion has an engagement groove with the lower end portion recessed upward. And an inclined piece formed so that the lower end of the engagement groove is inclined to the indoor side, an insertion piece that hangs the lower end of the inclined piece downward, and the tip of the insertion piece protrudes substantially horizontally to the outdoor side. The female connection part is formed with a fitting groove whose upper end is recessed downward, an inclined surface formed so that the lower side of the outdoor side surface of the fitting groove is inclined indoors, and an inclined surface It is related with the exterior material formed from the drop-off prevention groove | channel which hollowed in the middle of the outside to the outdoor side.

  According to the exterior material according to the present invention, (1) when a negative wind load (force that pulls 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 to the inclined surface. By being caught in the formed drop-off prevention groove, 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 representative example of the exterior material which concerns on this invention. It is a partial expanded sectional view which shows the representative example of the exterior material which concerns on this invention. It is sectional drawing which shows the construction state of the exterior material which concerns on this invention. It is sectional drawing which shows the construction order of the exterior material which concerns on this invention. It is sectional drawing which shows the construction order of the exterior material which concerns on this invention. It is sectional drawing which shows the construction order of the exterior material which concerns on this invention. It is sectional drawing which shows the construction order of the exterior material which concerns on this invention. It is sectional drawing which shows the construction state of the exterior material which concerns on this invention.

  Hereinafter, an embodiment of an exterior material according to the present invention will be described in detail with reference to the drawings. That is, the exterior material A is an exterior material A in which a core material 3 made of, for example, a synthetic resin foam is sandwiched between a front surface material 1 and a back surface material 2 as shown in FIGS. . Moreover, FIG. 3 is sectional drawing which shows a construction state. 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. 1, 2 (a) and 2 (b), a core material 3 is sandwiched between a surface material 1 and a back material 2 made of a long, 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 comprising an insertion piece 12 with the tip of the inclined piece 11 hanging downward, a drop-off prevention piece 13 projecting the tip of the insertion piece 12 substantially horizontally outward, and a lower edge 8 It is formed from an engagement groove 14 composed of a back piece 9 and 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, galvalume steel plate, enamel steel plate, clad steel plate, laminated steel plate (vinyl chloride 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. 2A, the inclined piece 11 is formed to be inclined toward the indoor side, and as shown in FIGS. 6 to 8, the negative pressure 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. 3, a fitting surface 18 of the female connecting portion 5 is inserted into the engaging groove 14 to connect the exterior material A and 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. 2 (b). 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 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. 2A and 2B, when the opening width of the fitting groove 22 is W and the height of the drop-off preventing piece 14 is W1, the relation of W> W1 is established.

  Therefore, the construction sequence of the exterior material A will be described with reference to FIGS. First, as shown in FIG. 4, the fixing surface 21 of the lower packaging material A1 is driven and fixed by the fixture β, and the insertion piece 12 of the packaging material A is placed on the upper packaging as shown in FIGS. It is formed by inserting the fitting groove 22 of the exterior material A.

  In the wall body formed by the exterior material A according to the present invention formed as described above, when a negative pressure is applied from the indoor side in the wind pressure resistance performance test of the wall body as shown in FIG. As shown in FIG. 8, the fall-off prevention piece 13 is caught in the fall-off prevention groove 19, so that the exterior material A can be prevented from peeling off.

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 a long exterior material having a male-female connection structure at the upper and lower end portions of the decorative surface, the male connection portion has an engagement groove with the lower end portion recessed upward, and an indoor side surface of the engagement groove at the lower end. A fitting groove formed from an inclined piece formed so as to be inclined inward, and a drop-off preventing piece whose front end protrudes substantially horizontally to the outdoor side, and the upper end of the female connecting portion is recessed downward And an exterior surface characterized in that the outdoor side surface of the fitting groove is formed with an inclined surface formed such that the lower end is inclined toward the indoor side, and a drop-off preventing groove formed in the middle of the inclined surface on the outdoor side. Wood.

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