JP3223940B2 - Vertical joint structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of vertical joints formed when connecting building panels (hereinafter simply referred to as "panels") useful for constructing an outer wall and an inner wall of a building or a building. More specifically, the present invention relates to a vertical joint structure which is improved in waterproofness as a complete surface water-stopping structure, and is excellent in fire resistance and heat insulation.

[0002]

2. Description of the Related Art Conventionally, as a structure for accommodating a vertical joint of this type, as shown in FIG.
The end of the panel c is covered with a long decorative cover a made of a thin iron plate and having a hat-shaped cross section and a joiner b using a fixing tool β on the upper side. ₁ and Joiner b and facing the protruding portion b ₁ each other and connected by fasteners β such blind rivets, the backup material with the left and right sides of panel c surface of the back surface of the decorative cover a, and the groove of the upper fixture β A method of filling with d and the sealing material e has been generally performed.

[0003]

However, in the conventional structure as described above, the vertical joint has only the iron plate, the backup material d, and the sealing material e, and the joint has extremely poor heat insulation and airtightness. In addition, the thermal bridge between the decorative cover a and the joiner b becomes a problem, and dew condensation occurs on the back surface of the joiner b, and the structure is weak in strength against the heat of a flame such as a fire. For this reason, such a joint structure, which is the weakest point in the wall structure, was a vertical joint structure that could not at all pass the one-hour fire qualification test of JIS-A-1304 (fire test method for building structural parts). . Further, when the backup material d is formed, the position where the backup material d is formed becomes deep or shallow because the position is not accurate, so that the embedded thickness of the sealing material e changes, and the waterproof material becomes waterproof. It had a vertical joint structure with problems in properties and adhesive strength. Furthermore, the waterproofness is limited to only the backup material d and the sealing material e, and if rainwater or the like infiltrates, rainwater or the like will penetrate into the skeleton.

[0004]

According to the present invention, in order to eliminate such a drawback, ends of left and right panels are laid on a mounting surface of a joiner, and a substantially center of a joint plate is provided at a rising portion of the joiner. The right and left ends of the joint plate are fixed to the panel surface material so that they face each other through the refractory heat insulating material, and the fixing groove of the decorative cover is applied to approximately the center of the joint plate having contact surfaces formed at both ends. It is in contact with and fixed, and the extruded material such as EPDM is formed in the fixing groove of the decorative cover to form a vertical joint. Therefore, the vertical joint is covered with the joint plate and the decorative cover, and is waterproof. In addition to improving the airtightness, airtightness, strength and design, fireproof insulation interposed between the joint plate and the joiner completely separates the front side and the backside of the vertical joint, preventing thermal bridges By this, mainly fire resistance of vertical joints, It improves the thermal properties and prevents the occurrence of dew condensation, thereby blocking the transmission of the heat of the flame generated from inside or outside the building to the outdoor side or indoor side even in the event of a fire, The present invention proposes a vertical joint structure having a performance that passes a one-hour fire resistance test of JIS-A-1304 (fire resistance test method for building structural parts).

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A typical example of a vertical joint structure according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional view showing the above structure. The decorative cover A, the joint plate B, the joiner C, the panel D, the fire-resistant insulation E, the backup material F, the sealing material G, the extruded material H such as EPDM, the wall base α, This is a structure including the fixing tool β.

[0006] For example, as shown in FIG.
Iron, aluminum, copper, stainless steel, titanium, aluminum
Roll forming of zinc alloy plated steel sheet, enameled steel sheet, clad steel sheet, laminated steel sheet (PVC steel sheet etc.), sandwich steel sheet (damping steel sheet etc.) etc. It is formed into various shapes by press molding, extrusion molding, etc., or is formed by extruding various plastic resins, aluminum alloys, etc. In order to make a joint structure of a fire-resistant structure in particular, a steel plate having a thickness of 0.27 mm or more It is formed by processing kinds.

The decorative surface 1 has a substantially horizontal cross-sectional shape,
A fixing groove 2 having a substantially central portion of the decorative surface 1 projecting downward and in a substantially concave shape, and a contact surface 3 in which both ends of the decorative surface 1 are bent inward in a substantially L-shape, are substantially reverse in cross section. It is made of a long body formed in a hat shape. In the drawing, both ends are folded inward to prevent danger to form a tongue piece 3a.

The decorative cover A covers a joint plate B and a fixing tool β, which will be described later, and mainly functions as a decorative material and a waterproof material for a vertical joint. The decorative surface 1 also functions as a bonding portion of the sealing material G when filling the gap between the back surface thereof and the surface material 9 of the panel D described later with the backup material F and the sealing material G. The fixing groove 2 is a part for fixing by using a fixing tool β such as a blind rivet as shown in FIG. 1 and a part for forming an extruded material H such as EPDM described later.

Reference numeral 2a denotes a groove which is formed so as to secure the position of the fixing tool β and not to shift left and right.

As shown in FIG. 3, for example, as shown in FIG. 3, the joint plate B is made of the same material as the decorative cover A. In particular, in order to form a joint structure of a fireproof structure, a steel plate having a thickness of 0.27 mm or more is used. It is formed by processing.

The cross-sectional shape is such that a horizontal holding surface 4 and both ends of the holding surface 4 are bent upward to form a contact surface 5.

As shown in FIG. 1, the holding surface 4 is in contact with a surface material 9 of the panel D, which will be described later, and is fixed to the surface material 9 of the panel D via a fixing tool β such as a blind rivet. This part covers the vertical joints and functions as a waterproofing material and an airtight material.

As shown in FIG. 1, the contact surface 5 secures the formation position of the backup material F and makes the formation position of the backup material F constant. The purpose of the present invention is to improve the performance, reduce the amount of the backup material F used, and stabilize the adhesive strength. Also,
This is to prevent bending during transport.

Further, a concave groove 4a formed on the holding surface 4 is provided.
Is a fixing tool β such as a blind rivet as shown in FIG.
And the groove 2a of the decorative cover A is supported by the central groove 4a, which is effective to secure the work position, and improves workability.

The joiner C is, for example, as shown in FIG.
The same material as the decorative cover A is used,
In particular, a joint structure of a fireproof structure is formed by processing a steel plate having a thickness of 0.27 mm or more. The cross-sectional shape is formed in a hat shape from a horizontal installation surface 6 and a rising portion 7 protruding in a substantially convex shape at a substantially central portion of the installation surface 6 upward.

The joiner C functions as a base material for a vertical joint, and as shown in FIG.
The mounting surfaces 6 on both sides are fixed to the wall foundation α using a fixing tool β such as a self-drilling screw screw. The installation surface 6 is a portion on which the panel D is laid, and a portion that functions as a base plate, a waterproof plate, and an airtight plate of a vertical joint.

The rising portion 7 functions as a guide when the panel D is laid on the installation surface 6, and the upper portion is also a portion corresponding to the joint plate B via the refractory heat insulating material E.

Further, in the figure, to prevent danger, a tongue piece 8 is formed by folding both end edges of the installation surface 6 to the front side. Also, the tongue piece 8 functions as a rain return and quickly drains toward the base even if rainwater or the like flows from the surface of the panel D, and the rainwater or the like invades the panel D and the wall base α. It is intended to prevent corrosion and also prevent the occurrence of dew condensation, mites and mold.

The panel D is, for example, shown in FIGS.
As shown in (a) cross-sectional view taken along the line aa in FIG. 9, the front surface material 9 and the back surface material 1 each having an end bent inward to form a box folded piece 9a.
0 is a dry wall material or the like having a sandwich structure in which the core material 11 is sandwiched and integrated with 0, a long panel, a vertical panel, a box-shaped panel D, or a ceramic siding material, an ALC plate, PC It is a fireproof wall material such as a board.

The surface material 9 is made of the same material as the decorative cover A. The surface material 9 also functions as a fixed portion of the joint plate B in the vertical joint portion.

The back surface material 10 is the same metal material as the front surface material 9, or asbestos paper, kraft paper, asphalt felt, metal foil (Al, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper , Aluminum hydroxide paper,
One or two or more kinds of glass fiber non-woven fabric or the like, or a fire-resistant sheet or the like which has been subjected to a waterproof treatment, a flame retardant treatment, or the like.

The core material 11 is a resol type phenol foam, polyisocyanurate foam, polyurethane foam, vinyl chloride foam, polyethylene foam, polystyrene foam, urea foam, or the like, or a refractory material such as inorganic lightweight aggregate and inorganic fiber. It is composed of mixed materials. Of course, it is also possible to use a phenol foam having a very high density to further improve the fire resistance.

Reference numeral 12 denotes an inorganic material, for example, calcium silicate plate, calcium carbonate plate, gypsum board, pearlite cement plate, rock wool plate, slate plate, ALC plate, P
One or more of a C-plate, another inorganic light-weight body, an inorganic light-weight foam, or a composite plate of these are integrally interposed in the male and female connection portions at the upper and lower ends of the panel A.
Also, D ₁ is an inorganic sheet, is intended to improve the confidentiality between connecting portions, refractory (flame intrusion prevention) and the like.

As shown in FIG. 1, the refractory heat insulating material E is inserted into a groove formed by the end portions of the left and right panels D and the rising portion 7 of the joiner C, and is made of metal. By separating the base plate B and the joiner C and preventing thermal bridges, mainly to improve the fire resistance, heat resistance and heat insulation of the vertical joints, to improve the fire resistance and prevent the occurrence of condensation It is. In this way, even in the event of a fire, the heat and smoke of the flame generated inside or outside the building are prevented from being transmitted to the outdoor or indoor side, and a vertical joint structure that passes the fire resistance 1 hour test is adopted. Is what you can do.

The materials of the refractory heat insulating material E include rock wool felt, ceramic wool, glass wool, asbestos,
Any material having a fixed or irregular shaped fire resistance such as gypsum board, water glass bond, ALC, calcium silicate, calcium carbonate, various inorganic foams, ultra-high density phenol foam, inorganic refractory caulking material and the like may be used.

The backup material F fills a gap between the front surface of the panel D and the back surface of the decorative surface 1 of the decorative cover A, and functions as a filler for preventing a three-point adhesion of a sealing material G described later. It is. As the material, there are generally commercially available materials such as foamed polyethylene, chloroprene rubber, EPT rubber, synthetic rubber bead, and bond breaker.

The sealing material G is filled on the above-mentioned backup material F and functions as a waterproof material for completing a complete surface water-stop structure, and is generally made of a two-component silicone or inorganic refractory caulk. It is commercially available, and is based on silicone (reaction curing type, moisture curing type), modified silicone type (reaction curing type), polysulfide type (reaction curing type), polyurethane type (reaction curing type,
(Moisture curing type), SBR type (dry curing type), acrylic type (dry curing type) and the like. Of course, a primer (not shown) is applied to the bonding surface of the sealing material G to improve the bonding strength.

The extruded material H such as EPDM is shown in FIG. 6. In general, for example, EPDM, EPM, polyvinyl chloride, chloroprene, chlorosulfonated polyethylene, ethylene propylene, asphalt-impregnated polyurethane An elastic material such as a rubber or a non-elastic material such as a polybutene, a polypropylene, a butyl or a rubber asphalt is used. In particular, FIG.
When weather resistance and heat resistance are required to form on the exposed part as shown in (3), use a material such as EPDM that has excellent weather resistance, heat resistance, ozone resistance, chemical resistance, etc. Is what you do. The recess H ₁ is provided in order to house the head of the fastener beta, the head portion of the fastener beta, in which extruded material H such as EPDM was formed so as not to deform.

Next, the vertical joint structure according to the present invention will be briefly described through working examples. First, as shown in FIG. 7, an H-shaped steel material, a square steel material,
Molded steel, L-shaped steel, etc.
The installation surfaces 6 on both sides of the plurality of joiners C are fixed with fixing members β such as screw screws so as to be parallel. The wall base α is provided in advance in a position corresponding to the installation length of the panel D, at a position where a vertical joint is formed.

Next, as shown in FIG. 8, using the rising portion 7 as a guide on the installation surface 6 of the joiner C, a metal panel D is stretched laterally from the base direction to the eave direction on both sides and fixed. Then, as shown in FIG. 9, the refractory heat insulating material E is filled in the concave groove surrounded by the rising portion 7 of the joiner C and the end of the panel D.

Further, as shown in FIG. 10, the holding surface 4 of the joint plate B and the surface material 9 of the panel D are fixed on the filled refractory heat insulating material E by using a fixing tool β such as a blind rivet. Then, the joint plate B is mounted and fixed to the surface material 9 of the panel D.

Then, as shown in FIG. 11, the fixing groove 2 of the decorative cover A is brought into contact with the joint plate B, fixed with a fixing tool β such as a blind rivet, and the decorative cover A is mounted and fixed to the joint plate B. .

Finally, as shown in FIG. 1, the space between the surface of the panel D and the abutting surface 3 of the decorative cover A is filled with a backup material F made of polyethylene foam and a silicone-based sealing material G, By forming the extruded material H such as EPDM in the fixed groove 2 of A continuously,
It forms a vertical joint structure of a complete surface water-stop structure.

By forming the vertical joints in this manner, the vertical joints are covered with the joint member B and the decorative cover A, so that the waterproofness, airtightness, design, and mechanical strength are improved. In addition, the front and back sides of the vertical joints are completely separated by the refractory heat insulating material E interposed between the joint plate B and the joiner C, preventing a thermal bridge, and mainly preventing fire resistance of the vertical joints, It improves heat insulation and prevents the occurrence of condensation. In this way, even in the event of a fire, the heat of the flame generated inside or outside the building is prevented from being transmitted to the outside or the inside, and JIS-A-1304 (fire resistance test method for building structural parts) is used. Can be made into a vertical joint structure that passes the fire resistance 1 hour test.

[0035]

Other Embodiments The embodiment described above is an embodiment of the vertical joint structure according to the present invention, and can be formed as shown in FIGS. That is, FIG. 12 to form an inorganic sheet D ₁ on joiner C, to prevent the formation of voids between the joiner C and panel D, there is ensured the intrusion prevention flame, heat to conduction by the fire, to a joiner C It is for preventing. Examples of the material include rock wool felt, ceramic wool, glass wool, asbestos, gypsum board, water glass bond, various inorganic foams, ultra-high density phenol foam, and inorganic refractory caulking agents.

Further, FIG. 13 is also formed of an inorganic sheet D ₁ between panels D and joint plate B, and those further improved fire resistance. Thus, fire resistance is further improved according to the vertical joint structure formed of an inorganic sheet D _1, JIS-A-13
The vertical joint structure surely passes the fire resistance 1 hour test of No. 04 (fire resistance test method for building structural parts).

FIGS. 14A to 14C are cross-sectional views showing another embodiment of the decorative cover A, and FIGS.
(E) shows another embodiment of the joint plate B,
In particular, FIG. 15A shows that grooves 4b are formed and inserted into the space of the vertical joint to prevent the mounting position from being shifted, thereby improving the workability.

FIGS. 16A to 16F are sectional views showing another embodiment of the extruded material D such as EPDM.

[0039]

As described above, according to the vertical joint structure according to the present invention, the fixture does not appear at all in the external appearance of the wall, and the wall has a completely waterproof structure. Since fireproof insulation is interposed between the joint plate and the joiner, the thermal insulation and airtightness of the joint are improved, and the front and back sides of the vertical joint are completely separated, preventing thermal bridges and condensation. Moreover, the vertical joints, which are the weakest points against heat, are strengthened, and JIS-A-1
A vertical joint structure that passes the fire resistance 1 hour test of 304 (fire resistance test method for building structural parts). Even if the core material is an organic substance such as a synthetic resin foam (phenol foam or the like), a vertical joint structure that passes the above-mentioned fire resistance 1 hour test is obtained.
There are two members, a decorative cover and a joint plate, on the surface side of the vertical joint, and both ends in the width direction of the joint plate are fixed to the ends of the edges of the building panel, so that waterproofness, airtightness, and strength are provided. The vertical joint structure is excellent. There is no pecking, distortion, bending, etc. in the decorative cover that is the surface decorative material due to the impact and vibration of the mounting of the fixture, and the construction does not require skill. Since the contact surface is formed at the end of the joint plate, it is easy to plant the backup material and the sealing material, and the workability is improved.
Since the extruded material such as EPDM is formed in the fixing groove to cover the head of the fixing tool, waterproofness is ensured and generation of rust on the fixing tool can be prevented. Since a space is formed between the abutment surface of the decorative cover and the abutment surface of the joint plate, the capillary phenomenon can be prevented, and the waterproofness can be further improved. There are features and effects such as.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a typical example of a vertical joint structure according to the present invention.

FIG. 2 is a perspective view showing an example of a decorative cover used in the above structure.

FIG. 3 is a perspective view showing an example of a joint plate used in the above structure.

FIG. 4 is a perspective view showing an example of a joiner used in the above structure.

FIG. 5 is a perspective view and a sectional view showing an example of a building panel used in the above structure.

FIG. 6 is a perspective view showing an example of an extruded material such as EPDM used for the above structure.

FIG. 7 is a sectional view showing a construction state of a vertical joint structure according to the present invention.

FIG. 8 is a sectional view showing a construction state of a vertical joint structure according to the present invention.

FIG. 9 is a sectional view showing a construction state of a vertical joint structure according to the present invention.

FIG. 10 is a sectional view showing a construction state of a vertical joint structure according to the present invention.

FIG. 11 is a sectional view showing a construction state of a vertical joint structure according to the present invention.

FIG. 12 is a sectional view showing another embodiment of the vertical joint structure according to the present invention.

FIG. 13 is a sectional view showing another embodiment of the vertical joint structure according to the present invention.

FIG. 14 is a sectional view showing another embodiment of the decorative cover.

FIG. 15 is a sectional view showing another embodiment of the joint plate.

FIG. 16 is a sectional view showing another example of an extruded material such as EPDM.

FIG. 17 is an explanatory diagram showing a conventional example.

[Explanation of symbols]

Reference Signs List A decorative cover B joint plate C joiner D building panel D ₁ inorganic sheet E fire-resistant heat insulating material F backup material G sealing material H Extruded material such as EPDM H ₁ concave portion α wall base β fixing device 1 decorative surface 2 fixing groove 2a groove 3 Contact surface 3a Tongue piece 4 Holding surface 4a Depressed groove 4b Groove 5 Contact surface 6 Installation surface 7 Rising part 8 Tongue piece 9 Surface material 9a Box folded piece 10 Back material 11 Core material 12 Inorganic material

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-346567 (JP, A) JP-A-5-42475 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04F 13/08-13/18 E04F 19/02

Claims (1)

(57) [Claims] 1. A vertical joint structure formed when a wall is formed by an architectural panel in which a core material is sandwiched between a front surface material and a back surface material, a substantially decorative surface having a substantially horizontal cross section and a substantially central portion of the decorative surface. A decorative cover formed downwardly and in the shape of an inverted hat from a fixing groove protruding in a substantially concave shape, and having a long end formed from an abutting surface bent in an approximately L-shape inward. ,
A joint plate formed in a long shape from a horizontal holding surface and an abutting surface whose both ends in the width direction of the holding surface are bent upward, a substantially flat horizontal installation surface and a substantially central portion of the installation surface. Upwards, and
From the rising part protruding in a substantially convex shape, a joiner made of a long body formed in a hat shape is provided, and ends of the left and right building panels are laid on the installation surface of the joiner, and The right and left ends of the joint plate are fixed to the surface material of the building panel so that the substantially center and the rising portion of the joiner face each other via the fire-resistant heat insulating material, and the fixing groove of the decorative cover is located substantially in the center of the joint plate. A vertical joint structure characterized in that the vertical joint is formed by forming an extruded material such as EPDM in a fixing groove of the decorative cover.