JP5565901B2 - Fireproof and waterproof construction of fireproof joint materials and outer wall joints - Google Patents

Description

  The present invention uses a fireproof joint material that can be pressed into the vertical joint between the outer wall panels to prevent water from entering from the vertical joint, and can achieve fire resistance and flame insulation of the vertical joint, and the fire joint material. The present invention relates to a fireproof and waterproof structure of an outer wall joint.

  In order to prevent rainwater and the like from entering from vertical joints between outer wall panels, a joint structure in which water-tightness is ensured by pressing a dry joint material between the vertical joints is known. As a joint material used for such a joint structure, for example, as shown in FIG. 9, a joint material 100 is inserted into a vertical joint formed between adjacent outer wall panels, and is inserted into the vertical joint. A strip-shaped support column 101, a protrusion 102 formed on the indoor side end of the support column 101, and fitted with a clip for preventing the joint material 100 from jumping out of the vertical joint to the outdoor side due to deterioration over time, and both outer walls A lip portion 103 extending from the support column 101 to the left and right sides so as to be pressed against the side surface of the panel, and a joint material body 104 integrally formed of a thermoplastic resin, and the interior of the ridge 102 Has been proposed (for example, Patent Document 1).

  The joint material 100 in which such a core metal 105 is embedded is easy to be constructed without losing the shape of the joint material when the shape of the joint material body 104 is maintained and the joint material 100 is press-fitted into the vertical joint. Since the shape of the joint material 100 is not collapsed, desired waterproofness can be exhibited. Further, since the core bar 105 extends to the inside of the ridge 102, the shape of the ridge 102 can be maintained, the clip can be easily fitted, and the clip can be prevented from falling off.

  By the way, in recent years, some dry-type joint materials have not only a waterproof function, but also a fire prevention and flame shielding function, and in the event of a fire or the like, there has been proposed one that prevents the flame from entering the building from the joint and spreading. ing. For example, as shown in FIG. 10, a joint material 202 made of rubber or a rubber-like elastic body is inserted into a joint 201 formed between outer wall panels 200 to prevent water from entering the building and to shield the flame. Each of the seal lips 204 protrudes vertically from both sides of the central column 203 toward the end surface of the outer wall, and at least one of the upper seal lips on the outside of the room excluding the lowermost step on the indoor side. A joint material 202 is proposed in which a plate-like fireproof material 205 having flame barrier properties is embedded in the step seal lip 204 over substantially the entire surface in the width direction and the longitudinal direction of the joint material (for example, Patent Document 2). .

  According to the joint material 202, since the fireproof material 205 is embedded in the seal lip 204 over substantially the entire surface in the width direction of the joint material 202, for example, even if a flame hits the joint from the outdoor side, Since the fireproof material 205 is arranged over substantially the entire surface, there is no possibility that the flame enters the indoor side of the joint.

Japanese Patent Laid-Open No. 2000-355983 Japanese Patent Laid-Open No. 2004-324397

  However, as described above, when the fireproof material 205 is embedded over substantially the entire width direction of the joint material 202 as in Patent Document 2, the cored bar 105 is placed in the column portion 101 without dividing the fireproof material 205. It is impossible to embed. In particular, when the ridge 102 is provided on the indoor side, the cored bar 105 cannot be disposed up to the inside of the ridge 102. Therefore, the shape of the joint material becomes difficult to be maintained, the construction work becomes difficult, and the construction accuracy may be lowered, or the joint material may jump out from the joint to the outdoor side, and sufficient waterproofness may not be ensured.

  Then, an object of this invention is to provide the fireproof joint material which has sufficient waterproofness and fireproof / flameproof property, and the fireproof waterproof structure of an outer wall joint.

The fireproof joint material according to claim 1 is formed in a strip shape having elasticity wider than the vertical joint between the outer wall panels, and in a strip shape wider than the vertical joint on the indoor side of the seal portion . A refractory part that forms fins that narrow at both ends, and contains a thermally expandable refractory material in a range wider than the joint width, and a position that protrudes from the indoor side of the refractory part and separates from the refractory part And a ridge formed of a resin harder than the seal portion formed to swell .

  The fireproof joint material according to claim 2, wherein the seal portion includes a lid portion exposed to the outdoor side, a strip-like columnar portion formed between the lid portion and the fireproof portion, and both sides of the columnar portion. A plurality of lips projecting from the side to the side, and the columnar part is characterized in that a metal core that holds the shape of the seal part is accommodated therein.

The fireproof and waterproof structure of the outer wall joint according to claim 3 is formed in a strip shape having elasticity wider than the vertical joint between the outer wall panels, and in a strip shape wider than the vertical joint on the indoor side of the seal portion. In addition, a narrow fin is formed at both ends, and a fire-resistant part containing a thermally expandable fire-resistant material in a range wider than the joint width is projected from the indoor side of the fire-resistant part and separated from the fire-resistant part. A ridge formed of a resin harder than the seal portion formed to swell at a position, a fireproof joint material press-fitted into the vertical joint, and a substantially C-shaped cross section sandwiching the convex stripe A clip comprising: a sandwiching portion; and an arm portion that is formed to expand toward the outer wall panel and whose front end is locked to an indoor side edge of the opposing surface of the outer wall panel that forms the vertical joint. It is characterized by providing these.

  The fireproof waterproof structure of the outer wall joint according to claim 4, wherein the seal portion of the fireproof joint material is a lid portion exposed to the outside, and a strip-like columnar shape formed between the lid portion and the fireproof portion. And a plurality of lips projecting laterally from both sides of the columnar portion, and the columnar portion is characterized in that a core metal that holds the shape of the seal portion is accommodated therein. .

  According to the fireproof joint material according to claim 1 and the fireproof waterproof structure of the outer wall joint according to claim 3, the elastic seal portion formed wider than the vertical joint is press-fitted into the vertical joint between the outer wall panels. Since the waterproof part can be maintained and the fire-resistant part that is formed wider than the vertical joint and contains the heat-expandable refractory material is arranged on the indoor side of the seal part. In some cases, the heat-expandable refractory material expands in the joint and exhibits the fire resistance and flame barrier properties of the vertical joint. And since the ridge formed of resin harder than the seal part is formed on the indoor side of this fireproof part, work to attach a clip that prevents the fireproof joint material from jumping out from the vertical joint to the outdoor side Thus, it is possible to prevent the fireproof joint material from popping out due to deterioration over time and the like, and to prevent the waterproofness and fireproof / flameproof properties from being lowered.

  According to the fireproof joint material according to claim 2 and the fireproof waterproof structure of the outer wall joint according to claim 4, since the metal core that holds the shape of the seal portion is housed inside the seal portion, Can also stabilize the shape of the seal part on the outdoor side, and on the other hand, on the indoor side of the refractory part, since the ridge is formed of a harder resin than the seal part, the shape can be further stabilized . Therefore, construction work becomes easy and high construction accuracy can be maintained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a height level where a metal fitting for fixing an outer wall panel showing an overall configuration of a fireproof and waterproof structure for an outer wall joint according to the present invention and a partially enlarged view thereof. The abbreviation sectional view of the height level of the building in which the clip which shows the whole fireproof waterproofing structure of the outer wall joint of the present invention is provided, and the partially expanded view. Sectional drawing explaining the structure of the fireproof joint material of this invention. The perspective view explaining the structure of the fireproof joint material of this invention. The side view and perspective view explaining the structure of a clip. Sectional drawing which shows the state which attached the clip to the fireproof joint material. It is a partially omitted cross-sectional view for explaining a state in which a fireproof joint material with a clip attached is inserted into a vertical joint between outer wall panels, and (A) shows a height level cross section where an outer wall panel fixing bracket is provided. (B) is abbreviated cross-sectional view showing a cross section at a height level of a building provided with a clip. Sectional drawing explaining the state which fixes an outer wall panel to a shaft set. Sectional drawing which shows an example of the conventional joint material. Sectional drawing which shows an example of the joint material which has the conventional fire resistance.

  Hereinafter, the best embodiment of the fireproof joint material 1 and the fireproof waterproof structure 2 of the outer wall joint of the present invention will be described with reference to the drawings. As shown in FIG. 1 and FIG. 2, the fireproof waterproof structure 2 of the outer wall joint has a fireproof joint material 1 that is press-fitted into the joint formed between the outer wall panels 3, and the fireproof joint material 1 jumps out to the outdoor side. And a clip 4 to prevent. Note that the clip 4 is fixed at the height level of the building that does not overlap with the outer wall panel fixing bracket 5, and in FIG. 1, for convenience of illustration, the clip 4 disposed below the outer wall panel fixing bracket 5 is illustrated. In FIG. 2, the description of the outer wall panel fixing metal fitting 5 disposed below the clip 4 is omitted.

  As shown in FIG. 8, the outer wall panel 3 is formed by fixing a plurality of outer wall panels 3 to the shaft assembly 6 constituting the structural frame of the building using the outer wall panel fixing bracket 5. The outer wall panel 3 is, for example, a resin-based, cement-based, ceramic-based, or metal-based siding material formed in a rectangular flat plate shape. A metal frame 7 having a U-shaped cross section is attached to the indoor side of the periphery of the outer wall panel 3 so as to open in the joint direction in order to fix the outer wall panel 3 to a beam or a column of a building.

  The outer wall panel fixing bracket 5 for fixing the outer wall panel 3 to the shaft set 6 is fixed to the shaft set 6 and is fixed to the base set 51 so as to be rotatable from the shaft set 6 to the outdoor direction. And a panel fixing portion 52 for holding the metal frame 7 of the outer wall panel 3 between the shaft assembly 6 and an operation portion 53 for rotating the panel fixing portion 52. When fixing the outer wall panel 3, the metal frame 7 of the outer wall panel 3 is pressed against the shaft assembly 6, the operation part 53 of the outer wall panel fixing bracket 5 is operated to rotate the panel fixing part 52, and the panel is fixed. The metal frame 7 of the outer wall panel 3 is sandwiched and fixed by the portion 52 and the shaft assembly 6. At this time, the operation unit 53 is configured to be located in the back of the vertical joint between the outer wall panels 3. Therefore, by operating while inserting a tool such as a screwdriver (not shown) in the joint from the outdoor side, the outer wall panel 3 can be attached from the outdoor side. Can be removed.

  As shown in FIGS. 3 and 4, the refractory joint material 1 is an elongated joint material that is press-fitted along the vertical joint formed between the outer wall panels 3, and has elasticity formed wider than the vertical joint. A seal portion 10 having a strip-like refractory portion 8 wider than the joint width formed along the seal portion 10 on the indoor side of the seal portion 10, and the refractory portion 8 on the indoor side of the refractory portion 8. And a ridge 9 formed along the center.

  As shown in FIG. 3, the seal portion 10 is exposed to the outdoor side of the vertical joint formed between the outer wall panels 3 to cover the vertical joint, and the lid portion 11 and the fireproof portion 8. And a pair of lips 13 projecting laterally from both sides of the columnar portion 12, and the lip 13 and the lid portion 11. And the lip 13 and the refractory part 8 are connected to each other to form a tubular space between the columnar part 12 and the side part 14. Further, a cored bar 15 formed by bending a metal plate is accommodated in the columnar part 12 over the entire area of the columnar part 12, and the deformation of the columnar part 12 is suppressed.

  The lip 13 and the side surface portion 14 that ensure at least waterproofness of the seal portion 10 are formed of a soft material. For example, an olefin thermoplastic elastomer (TPO), a styrene thermoplastic elastomer (TPS), or a vinyl chloride thermoplastic. It is a thermoplastic elastomer (TPE) such as an elastomer (TPVC), and is preferably formed of an olefin-based thermoplastic elastomer (TPO). The material of the seal portion 10 is not limited to these thermoplastic elastomers, and any soft elastic material that can be press-fitted into a vertical joint formed between the outer wall panels 3 to exhibit waterproofness. Can be applied. Therefore, for example, a rubber material may be used.

  The refractory portion 8 is connected to the indoor side of the seal portion 10 by the columnar portion 12 and the side surface portion 14, and is formed in a strip shape that is wider than the joint width along the seal portion 10. Both sides of the refractory part 8 are thinned to form fins 17. In addition, a heat-expandable refractory material 16 is embedded in the refractory section 8 in a range wider than the joint width. As the thermally expandable refractory material 16, for example, when a flame is about to enter a vertical joint due to a fire or the like, the thermal expandable refractory material 16 has an amount and expandability capable of completely closing the vertical joint, and has various fireproof and flameproof properties. The heat-expandable refractory material 16 can be used.

  The ridge 9 protrudes continuously from the indoor side of the refractory part 8, and is bulged and formed at a position away from the refractory part 8. The ridges 9 are made of a hard resin. For example, a thermoplastic polyolefin (PO) such as polyethylene (PE) or polypropylene (PP), an olefin thermoplastic elastomer (TPO), or a styrene thermoplastic elastomer (TPS). ), Thermoplastic elastomers (TPE) such as vinyl chloride thermoplastic elastomer (TPVC), and polyolefin (PO) is preferable. By using these hard resins, the shape does not deform even if the cored bar 15 that stabilizes the posture is not housed inside the ridge 9. In addition, the material of this protruding item | line 9 is not limited to these, All the materials which can stabilize the shape of the protruding item | line 9 are applicable. For example, a rubber material may be used.

  As shown in FIG. 5 and FIG. 6, the clip 4 is provided on the joint, with a sandwiching portion 41 having a concave cross section with its tip bent to the inside, which can sandwich the ridge 9 of the fireproof joint material 1. And an arm portion 42 which is formed so as to expand toward the outdoor direction and whose front end is engaged with the indoor side edge of the mutually opposing surfaces of the outer wall panel 3. It is formed with the metal or resin which has.

  When constructing the fireproof waterproof structure 2 of the outer wall joint, as shown in FIG. 8, after the outer wall panel 3 is attached and fixed to the outer wall panel fixing bracket 5 to form the vertical joint, as shown in FIG. The plurality of clips 4 are fixed at appropriate positions on the ridges 9 of the fireproof joint material 1 with predetermined intervals. At this time, the clip portion 4 has a pinching portion 41 bent at the tip, and the ridge 9 is formed to swell, so that the clip 4 and the ridge 9 can be fixed so as not to come off. Then, as shown in FIG. 7A, a position where the clip 4 of the fireproof joint material 1 is not installed is arranged at the height level where the outer wall panel fixing metal fitting 5 is installed, and FIG. As shown in FIG. 4, the lid of the fireproof joint material 1 is held so that the position where the clip 4 of the fireproof joint material 1 is installed is arranged at a height level where the outer wall panel fixing metal fitting 5 is not installed. The part 11 is pushed in with a seal joint gauge (insertion jig) (not shown) or the like to press-fit the fireproof joint material 1 into the vertical joint.

  And as shown to FIG. 2 (A) and (B), the fireproof joint material 1 to the position where the front-end | tip of the arm part 42 of the clip 4 is latched by the indoor side edge part of the outer wall panel 3 which forms a vertical joint is shown. To complete the fireproof and waterproof structure 2 of the outer wall joint.

  As described above, the fireproof and waterproof structure 2 for the outer wall joint is such that in the case of a fire or the like, the thermally expandable refractory material 16 expands in the joint and exhibits the fire resistance / flameproof property of the vertical joint. It is not necessary to insert a non-combustible filler between the panel fixing bracket 5 and material costs and work costs can be reduced. Further, since the core part 15 that holds the shape of the seal part 10 is stored in the columnar part 12 of the seal part 10, the shape of the seal part 10 can be more stabilized on the outdoor side than the fireproof part 8, Since the ridge 9 made of a resin harder than the seal portion 10 is formed on the indoor side of the refractory portion 8, the clip 4 that prevents the refractory joint material 1 from jumping out from the vertical joint to the outdoor side is provided. The attachment work becomes easy, and it is possible to prevent the fireproof joint material 1 from popping out due to deterioration over time and the like, and to prevent the waterproofness and the fireproofing / flameproofing properties from being lowered, and the shape can be further stabilized. Therefore, construction work becomes easy and high construction accuracy can be maintained.

  Needless to say, the embodiment of the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the scope of the idea of the present invention.

  The fireproof joint material 1 and fireproof waterproof structure according to the present invention can be suitably used as a joint material and joint structure that are press-fitted into a vertical joint between outer wall panels 3 of a house or the like.

DESCRIPTION OF SYMBOLS 1 Fireproof joint material 2 Fireproof waterproof structure of outer wall joint 4 Clip 8 Fireproof part 9 Convex strip 10 Seal part 12 Column-shaped part 13 Lip 15 Core metal 16 Thermal expansion fireproof material

Claims (4)

An elastic seal portion formed wider than the vertical joint between the outer wall panels;
A refractory part in which a fin which is formed at the both ends formed in a strip shape wider than the vertical joint is formed on the indoor side of the seal part, and a heat-expandable refractory material having a wider range than the joint width is accommodated therein. When,
A fireproof joint material comprising: a protruding line formed from a resin harder than the seal part, which protrudes continuously from the indoor side of the fireproof part and bulges away from the fireproof part . The seal portion includes a lid portion exposed to the outdoor side, a belt-like columnar portion formed between the lid portion and the fireproof portion, and a plurality of lips projecting laterally from both sides of the columnar portion. And comprising
2. The fireproof joint material according to claim 1, wherein the columnar portion stores therein a metal core that retains the shape of the seal portion. 3. An elastic seal portion formed wider than the vertical joint between the outer wall panels, and fins that are formed on the indoor side of the seal portion and formed in a strip shape wider than the vertical joint at both ends thereof. , its internal refractory accommodating a wide range of thermal expansion fireproof material from joint width portion, than the sealing portion formed bulging in a position away from the refractory portion protrudes continuous from the indoor side of the refractory portion A refractory joint material comprising a ridge formed of a hard resin, and press-fitted into the longitudinal joint;
A sandwiching portion having a substantially C-shaped cross section for sandwiching the ridges, and an end of the outer wall panel that forms the vertical joint is formed on the indoor side edge of the outer wall panel. A clip having an arm portion to be locked;
A fireproof and waterproof structure for joints on the outer wall, characterized by comprising: The seal part of the fireproof joint material includes a cover part exposed to the outdoor side, a belt-like columnar part formed between the cover part and the fireproof part, and protruding sideways from both sides of the columnar part. A plurality of lips, and
The fireproof and waterproof structure for an outer wall joint according to claim 3, wherein the columnar part stores therein a metal core that holds the shape of the seal part.

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