JP3993199B2 - Architectural gasket - Google Patents

Description

  The present invention relates to a building gasket used as a seal member in a joint portion of an outer wall of a building.

  Gaskets for construction are used to prevent rainwater and other intrusions from entering the building through joints on the outer wall. At the same time, vents for equalizing internal and external air pressure have been used in the past. In addition, a construction gasket provided in consideration of prevention of intrusion is also introduced (for example, see Patent Document 1 below).

Japanese Patent No. 3468931

  The conventional architectural gasket is formed by continuous extrusion vulcanization to form a long gasket body integrally formed with a water retaining holding piece and a mounting leg piece each having a hollow portion, and the mounting of the gasket body. A recess is formed in the leg piece at a predetermined interval, a partition plate is fitted into the recess, a plurality of hollow chambers are formed in the mounting leg piece, and a vent hole for introducing air into the hollow chamber is formed. The structure is such that it is formed in a staggered manner adjacent to the partition plate.

  However, in the manufacturing stage, the conventional architectural gasket involves a step of drilling the recessed portion, a step of fitting and attaching a partition plate to the recessed portion, and a step of drilling the vent hole. This is a factor that increases the manufacturing cost, and it is necessary to securely bond the partition plate to the notch after bonding the partition plate so that the notch is not sufficiently fitted to the notch. There was a problem that it had to be.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a building gasket that reliably achieves watertightness and outdoor pressure adjustment without increasing manufacturing costs. .

  The first architectural gasket according to the present invention made to solve the above-mentioned problems is the above-mentioned conventional architectural gasket, which is integrally formed by extrusion molding of a rubber material, each having a long water stop having a hollow portion. The leg portion is formed with a substantially circular through-hole extending across the entire width of the leg portion, and the hollow portion of the leg portion is partitioned into a plurality of ventilation chambers by the through-hole. The partition piece is loaded over the entire width of the leg portion, and has a structure in which substantially circular circulation holes for circulating air to the hollow portion of the leg portion are alternately formed adjacent to the partition piece. The partition piece is molded into a cylindrical shape by extrusion molding of a rubber material, and a groove running in the longitudinal direction of the partition piece is engraved on the side surface in a wavy shape, and the cross section of the partition piece The diameter of the wave bottom circle at The diameter of the wave front circle in the cross section of the partition piece is set to be larger than the diameter of the through hole according to the elasticity and shape of the partition piece, with a size that can be loaded into the through hole as a limit. .

  Extrusion molding of a rubber material means that a long molded product having a uniform cross section having elasticity such as raw rubber or elastomer is molded by extrusion molding.

  The substantially circular through-hole drilled over the entire width of the leg is a hole that linearly crosses the leg including the space corresponding to the hollow part. In many cases, the holes are formed by linearly projecting a circle substantially equal to the inner diameter of the partition piece on the side walls on both sides. It is desirable that the projection direction has a downward slope from the indoor side to the outdoor side with respect to the longitudinal direction of the building gasket when actually attached to the joint.

  As for the flow hole, to alternately drill adjacent to the partition piece, for example, the flow hole is formed in the side wall on the opposite side of two adjacent ventilation chambers partitioned by the partition piece. When one each is provided adjacently, a straight line connecting a pair of flow holes is provided so as to intersect with the partition piece. In addition, if necessary, the flow holes may be provided in the opposite side walls so as not to face each other regardless of the presence of the partition piece.

  With respect to the groove formed on the side surface of the partition piece, the groove running in the longitudinal direction of the partition piece means a groove extending in the direction in which the partition piece enters the through hole, and extends over the entire circumference. The wave shape formed may be any of a rectangular wave, a triangular wave, a sine wave, or a sawtooth wave. Here, the wave bottom circle refers to a virtual circle formed by connecting the deepest portions of the grooves in the cross section of the partition piece, and the wave front circle refers to the maximum of each groove in the cross section of the partition piece. A virtual circle formed by connecting the tops.

  A second architectural gasket according to the present invention made to solve the above-mentioned problems is composed of a long water-stop part and a leg part, each of which has a hollow part, which are integrally formed by extrusion molding of a rubber material. A notch having a predetermined length over the entire cross section is formed in the leg at intervals, and the leg is hollowed into a plurality of ventilation chambers, and both sides of the notch are provided. A partition piece connecting the leg pieces adjacent to each other, and the partition piece includes a side wall and a bottom wall continuous to a side wall and a bottom wall of the leg piece adjacent to both sides of the notch, and A partition wall for partitioning a recess surrounded by them is provided, and recessed notches for allowing air to flow into the hollow portion of the leg portion are alternately formed adjacent to the partition wall.

The water-stop portion is integrally formed by extrusion molding of a rubber material, and has a long leg portion having a hollow portion and a surface of the leg portion that are spaced apart from each other along the longitudinal direction thereof in parallel. Further, it may be constituted by a water stop portion composed of a plurality of fins, and the leg portion may be provided with an anchor portion such as a wedge shape that can be fitted to a panel or a frame.
As for the concave notches, to alternately drill adjacent to the partition walls of the partition piece, for example, the concave notches are on the opposite side walls of two adjacent vent chambers partitioned by the partition. When one each is provided adjacent to the partition wall, a straight line connecting the pair of recesses is provided so as to intersect the partition wall. In addition, the notch part may be provided with unevenness for positioning the partition piece as appropriate.

  According to the first architectural gasket having the above structure according to the present invention, both the through hole and the vent hole for loading the partition piece need to be drilled, but both of them have substantially circular holes. Since it is an installation process, it can be kept at a relatively low cost. Further, by adopting a configuration in which the columnar partition piece is loaded into the substantially circular through hole, the strength around the through hole in the leg portion is not greatly impaired.

  Further, the partition piece is formed into a cylindrical shape by extrusion molding of a rubber material, and a groove running in the longitudinal direction of the partition piece is engraved on the side surface in a wavy shape, and the cross section of the partition piece The diameter of the wave bottom circle at is substantially equal to the diameter of the through hole, and the diameter of the wave front circle in the cross section of the partition piece is set larger than the diameter of the through hole as long as it can be loaded into the through hole. Thus, although the partition piece to the through hole is relatively easy, the elasticity of the gasket main body and the partition piece is not combined, and the fitting does not become insufficient. Sufficient bonding strength can be obtained without fitting the partition piece into the hole and then adhering with a glue or the like. In addition, when bonding with glue or the like, workability and adhesive strength at the time of gluing are also good due to the wavy side surface state of the partition piece. In this way, since complicated labor can be avoided, the manufacturing process becomes extremely efficient.

  According to the second architectural gasket having the above structure according to the present invention, it is necessary to make a notch in the leg and attach the partition piece. And a partition wall for partitioning the hollow part is provided, so that a drilling process for other holes such as a vent and a mounting process for a member for partitioning the hollow part are not required, so that the manufacturing cost is relatively low. Can do.

  Hereinafter, an embodiment of an architectural gasket according to the present invention (hereinafter referred to as a gasket) will be described based on an example of a holding structure of a panel 17 using the gasket for a joint portion of the panel, with reference to the drawings.

  The first gasket shown here is interposed between the adjacent panels 17 and 17 on the wall surface or roof surface to which the panels 17 are continuously arranged, and maintains watertightness as shown in FIG. A long water-stopping portion 1 by extrusion using a rubber material having high elastic holding power and high weather resistance such as silicon rubber, chloroprene rubber, ethylene propylene rubber, polyethylene, polyurethane, polyvinyl chloride, etc. A gasket main body 18 integrally formed with the leg portions 2 so as to have a series of hollow portions, and a partition piece 5 that partitions the hollow portions of the leg portions 2 (see FIG. 2).

  The leg portion 2 has a horizontally-long rectangular cross-sectional shape, and substantially circular through holes 3 are formed at regular intervals across the entire width with equal inclination. The central portion of the through hole 3 is assimilated with the hollow portion of the leg portion 2, and apparently a pair of round holes are provided on the side walls 11, 11 facing both sides of the leg portion 2. The appearance is such that it is provided with a positional relationship slightly shifted in the longitudinal direction (see FIG. 1).

  A partition piece 5 that partitions the hollow portion of the leg portion 2 into a plurality of ventilation chambers 4 is loaded in the through hole 3 over the entire width of the leg portion 2. At that time, the partition piece 5 has the gasket body 18 at the joint portion of the panel 17 and its longitudinal direction up and down due to the inclination of the through hole 3, that is, the slight displacement of the position where the round hole is provided. In a state where the panel 17 is mounted in a pointing state, the panel 17 is loaded so as to be inclined downward from the indoor side to the outdoor side (see FIGS. 1A and 1B).

  The partition piece 5 is formed into a cylindrical shape by continuous extrusion vulcanization using the same material as that of the gasket body 18, and 18 pieces that run in the longitudinal direction of the partition piece 5 on the side surface (can be changed as appropriate). The groove 7 is engraved in a triangular wave shape over the entire circumference (see FIG. 3), and the diameter of the wave bottom circle in the cross section of the partition piece 5 is the diameter of the through hole 3 and the hollow of the leg 2. The diameter of the wave front circle in the cross section of the partition piece 5 is set to be approximately 10% larger than the diameter of the through hole 3 (see FIG. 4).

  In the plurality of ventilation chambers 4 formed in the hollow portion of the leg portion 2, substantially circular circulation holes 6 through which air flows to the respective ventilation chambers 4 are side walls 11, 11 facing both sides of the leg portion 2. In addition, they are alternately formed adjacent to the partition piece 5. That is, the flow holes 6 are formed by being distributed in the opposite directions in the longitudinal direction of the gasket body 18 with respect to the partition piece 5 loaded in the gasket body 18, one on each side wall 11, 11. Is drilled at the upper position at the lower end of the slope of the partition piece 5 and the other at the lower position at the upper end of the tilt of the partition piece 5 (see FIGS. 1A and 1B).

  By adopting such a configuration, when the gasket body 18 is mounted on the joint between the panels 17 and 17 with the longitudinal direction thereof pointing up and down, the hollow portion of the leg 2 is separated from the partition piece 5. It is possible to prevent moisture that has entered the plurality of ventilation chambers 4 obtained by partitioning to the outside from being retained in the ventilation chamber 4 and to prevent external wind and rain from the outdoor side of the panel 17. It can prevent blowing directly into the indoor side. Furthermore, the through holes 6 are appropriately added to the side walls 11 surrounding the respective ventilation chambers 4 so that external wind and rain can be prevented from blowing directly from the outdoor side to the indoor side of the panel 17.

  On the other hand, the water stop portion 1 has an isosceles triangular cross-sectional shape, and each of the three corners is rounded. In particular, the roundness of the apex angle is a sufficiently gentle curve compared to other corners. (See FIG. 4). When the water stop portion 1 is attached to the joint portion of the panel 17 that covers the wall surface, the apex portion is deformed flat as shown in FIG. 5 to ensure the intrusion of wind and rain from the joint portion. It will be blocked.

  Similar to the first gasket, the second gasket is interposed on the joint between the adjacent panels 17 and 17 on the wall surface or roof surface to which the panels 17 are continuously arranged, and is watertight. A long water-stop part by extrusion using a rubber material with high elastic retention and high weather resistance such as silicon rubber, chloroprene rubber, ethylene propylene rubber, polyethylene, polyurethane, polyvinyl chloride, etc. 1 and the leg part 2 are each provided with a gasket body 19 integrally formed so as to have a series of hollow parts, and a partition piece 10 for partitioning the hollow part of the leg part 2 (see FIG. 6).

  The leg portion 2 has a horizontally long rectangular cross-sectional shape, and a notch portion 8 having a predetermined length over the entire cross section is formed at intervals, and the leg portion is formed in the notch portion 8 by the notch portion 8. 2 is provided with a structure in which a partition piece 10 for connecting the leg pieces 20 adjacent to both sides of the cutout portion 8 is divided (see FIGS. 6A and 6B).

  The partition piece 10 is a molded product using a mold, and the side wall 13 and the bottom wall 14 that are continuous with the side wall 11 and the bottom wall 12 of the leg 2 adjacent to both sides of the notch 8, and are surrounded by them. A partition 15 for partitioning the recessed portion is provided, and the hollow portion of the leg portion 2 is partitioned into a plurality of ventilation chambers 9 by mounting the partition piece 10. The partition wall 15 is provided so as to incline downward from the indoor side to the outdoor side of the panel 17 in a state where the gasket main body 19 is mounted on the joint portion of the panel 17 so that the longitudinal direction thereof points up and down. In addition, recessed portions 16 through which air from outside flows into the hollow portions of the leg portions 2 are alternately formed adjacent to the partition walls 15 (see FIG. 7).

  That is, by attaching the partition piece 10 to the notch portion 8, a plurality of ventilation chambers 9 partitioned by the partition wall 15 are formed in the hollow portion of the leg portion 2. 13 and 13 are each provided with a rectangular recess 16 on each side wall 13 in such a manner as to be distributed in the opposite direction of the longitudinal direction of the gasket main body 19 with respect to the partition wall 15. The other end is formed at the upper end of the lower end of the inclination 15 and the lower end at the upper end of the inclination of the partition wall 15 (see FIGS. 6A and 6B).

  By adopting such a configuration, the notch portion 8 to which the partition piece 10 is mounted is formed at an appropriate interval, so that the gasket main body 19 is located at the joint portion of the panel 17 and its longitudinal direction is up and down. When mounted in the state of pointing, the moisture that has entered the plurality of ventilation chambers 9 obtained by partitioning the hollow portion of the leg portion 2 with the partition wall 15 of the partition piece 10 is guided to the outside to enter the ventilation chamber 9. It is possible to prevent stagnation and to prevent external wind and rain from blowing directly from the outdoor side of the panel 17 to the indoor side.

  In addition, the space | interval which punctures the said notch part 8 is the space | interval which becomes the positional relationship which can avoid that the notch part 16 of the nearest partition piece 10 directly blows in external wind and rain from the outdoor side of the panel 17 to the indoor side. It is.

  Similarly to the first gasket, the water stop portion 1 of the second gasket also has a cross-sectional shape of an isosceles triangle, and roundness is given to each of the three corners. The curve is sufficiently gentle compared to other corners (see FIG. 4). When the water stop portion is attached to the joint portion of the panel 17 covering the wall surface, the apex angle portion is deformed flat as shown in FIG. 5 to reliably block the intrusion of wind and rain from the joint portion. It will be a thing.

  As the water stop part 1 of the gasket according to the present invention, in addition to the hollow water stop part having the isosceles triangular cross-sectional shape, the longitudinal direction is formed on the surface of the leg part integrally formed by extrusion molding of a rubber material. Adopting water-stopping parts consisting of a plurality of fins that are erected in parallel and spaced apart from each other, good water-stopping properties can be obtained even with weak pressure bonding to panel materials that are relatively weak It is good also as a structure. In the example shown in FIGS. 8 and 9, the pair of fins 22 and 22 are provided so as to stand up from the both end edges of the surface of the leg portion 2, and both the fins 22 and 22 are provided on the left side of the panel. In preparation for the case of the specification and the case of the right-handed specification, the shape is equally along one side in the width direction (outside at the time of installation) in order to enhance the water stop effect. Due to the presence of the gap between the fins 22 and 22, a good water-stopping effect can be obtained in the same manner as the water-stopping portion 1 of the first and second gaskets.

  The leg 2 in this example is provided on the end face of a panel, a frame or the like in addition to a form in which the bottom face shown by the first and second gaskets has a flat leg part and is attached to the end face of the panel 17. For example, a wedge-shaped anchor portion 21 that can be fitted into a holding groove (not shown) may be provided. That is, the anchor portion 21 has a hollow shape integrally formed with the water stop portion 1 and the leg portion 2 formed in the same manner as the first or second gasket by hollow extrusion molding, for example. The part is provided with two hook fins over the entire length of the gasket, which protrudes in contrast to both side surfaces thereof, in a form of warping the base end side of the anchor part (for example, FIG. 8 and FIG. 9). reference). In these legs 2, rainwater or the like can be prevented from entering the ventilation chamber 4 from the end face of the gasket by appropriately attaching the sword plate 23 as shown in the figure.

  The architectural gasket according to the present invention has a purpose of taking measures to equalize the air pressure on the indoor side and the outdoor side while ensuring the water tightness of the joint portion of the panel stretched on the wall surface, and to prevent the blowing of wind and rain caused thereby. Therefore, it is inevitable that the manufacturing cost is higher than that of a normal building gasket. However, the construction gasket that achieves the purpose is cheaper as in the present invention, so that the indoor side It is possible to solve and prevent various problems that occur in the enclosure due to the imbalance between the atmospheric pressure and the outdoor side at low cost.

(A) is a cross-sectional view of a leg in an example of a building gasket according to the present invention, (B) is a bottom view thereof, (C) is a cross-sectional view taken along line AA of (B), and (D) is a cross-sectional view. (B) BB arrow sectional drawing, (E) is CC arrow sectional drawing of (B), (F) is DD arrow sectional drawing of (B). 1 is a perspective view showing an appearance of an example of a building gasket according to the present invention. It is a perspective view showing appearance of a partition piece used for an example of a building gasket according to the present invention. FIG. 4 is an enlarged view of FIG. 1F and a sectional view of the partition piece shown in FIG. 3. It is a cross-sectional view which shows the example of an embodiment of the gasket for buildings by this invention. (A) is a cross-sectional view of a leg in an example of a building gasket according to the present invention, (B) is a bottom view thereof, (C) is a cross-sectional view taken along line AA of (B), and (D) is a cross-sectional view. (B) BB arrow sectional drawing, (E) is CC arrow sectional drawing of (B), (F) is DD arrow sectional drawing of (B). It is the perspective view which showed the external appearance of an example of the gasket for construction | construction by this invention in the state which decomposed | disassembled the gasket main body and the partition piece. (A) is a cross-sectional view of a leg portion in an example of a building gasket according to the present invention, and (B) is a top view showing an example of a building gasket according to the present invention. 8A is a cross-sectional view taken along the line AA in FIG. 8, FIG. 8B is a cross-sectional view taken along the line BB, FIG. 8C is a cross-sectional view taken along the line C-C, and FIG. (E) is a cross-sectional view taken along the line EE, (F) is an end view in a state in which a gap hole in a leg is sealed, and (G) is an end view in a state in which the gap hole in a leg is opened.

Explanation of symbols

1 water stop, 2 legs, 3 through holes,
4 ventilation chamber, 5 partition piece, 6 flow hole, 7 groove, 8 notch,
9 ventilation chamber, 10 partition piece, 11 side wall, 12 bottom wall,
13 side walls, 14 bottom walls, 15 bulkheads, 16 notches, 17 panels,
18 gasket body, 19 gasket body, 20 leg pieces,
21 anchor part, 22 fin, 23 swordboard,

Claims (4)

The rubber material is integrally formed by extrusion molding and is composed of a long water-stopping portion (1) and a leg portion (2) each having a hollow portion, and the leg portion (2) is substantially covered over its entire width. A circular through hole (3) is formed at intervals, and a partition piece (5) for partitioning the hollow portion of the leg portion (2) into a plurality of ventilation chambers (4) is formed in the through hole (3). The substantially circular flow holes (6) that are loaded over the entire width of the leg (2) and flow air to the hollow part of the leg (2) are alternately adjacent to the partition piece (5). It has a structure formed by drilling,
The partition piece (5) is formed into a cylindrical shape by extrusion molding of a rubber material, and a groove (7) running in the longitudinal direction of the partition piece (5) is formed in a wavy shape on the entire side of the partition piece (5). The diameter of the wave bottom circle in the cross section of the partition piece (5) is substantially equal to the diameter of the through hole (3), and the diameter of the wave front circle in the cross section of the partition piece (5) is the diameter of the through hole ( 3) A building gasket that is set to be larger than the diameter of the through hole (3) with the size that can be loaded in 3) as a limit. The rubber material is integrally formed by extrusion molding, and is composed of a long water-stopping portion (1) and a leg portion (2) each having a hollow portion. The leg portion (2) extends over the entire cross section. A predetermined length of the notch (8) is drilled at an interval, and the hollow portion of the leg (2) is divided into a plurality of ventilation chambers (9) in the notch (8), and the notch ( 8) having a structure in which partition pieces (10) for connecting the leg pieces (20) adjacent to both sides are mounted,
The partition piece (10) includes a side wall (13) and a bottom wall (14) continuous to the side wall (11) and the bottom wall (12) of the leg piece (20) adjacent to both sides of the notch (8). In addition, a partition wall (15) for partitioning a recess surrounded by them is provided, and recesses (16) for allowing air to flow into the hollow portion of the leg portion (2) are alternately bored adjacent to the partition wall (15). An architectural gasket. A long leg portion (2) having a hollow portion and integrally formed by extrusion molding of a rubber material, and standing on a surface of the leg portion (2) in parallel with being spaced apart from each other along its longitudinal direction. The water stop part (1) consisting of a plurality of fins (22),
A substantially circular through hole (3) extending over the entire width of the leg (2) is formed at intervals, and a hollow portion of the leg (2) is formed in the through hole (3) with a plurality of ventilation holes. A partition piece (5) for partitioning into the chamber (4) is loaded over the entire width of the leg (2), and a substantially circular circulation hole (6) through which air is circulated to the hollow part of the leg (2). , Comprising a structure formed by alternately drilling adjacent to the partition piece (5),
The partition piece (5) is formed into a cylindrical shape by extrusion molding of a rubber material, and a groove (7) running in the longitudinal direction of the partition piece (5) is formed in a wavy shape on the entire side of the partition piece (5). The diameter of the wave bottom circle in the cross section of the partition piece (5) is substantially equal to the diameter of the through hole (3), and the diameter of the wave front circle in the cross section of the partition piece (5) is the diameter of the through hole ( 3) A building gasket that is set to be larger than the diameter of the through hole (3) with the size that can be loaded in 3) as a limit. A long leg portion (2) having a hollow portion and integrally formed by extrusion molding of a rubber material, and standing on a surface of the leg portion (2) in parallel with being spaced apart from each other along its longitudinal direction. The water stop part (1) consisting of a plurality of fins (22),
A notch (8) having a constant length over the entire cross-section is formed in the leg (2) at intervals, and a plurality of hollow portions of the leg (2) are formed in the notch (8). A structure comprising a partition piece (10) for partitioning into the ventilation chamber (9) and connecting the leg piece (20) adjacent to both sides of the notch (8),
The partition piece (10) includes a side wall (13) and a bottom wall (14) continuous to the side wall (11) and the bottom wall (12) of the leg piece (20) adjacent to both sides of the notch (8). In addition, a partition wall (15) for partitioning the recessed portion surrounded by them is provided, and recessed notches (16) for circulating air to the hollow portion of the leg portion (2) are alternately drilled adjacent to the partition wall (15). An architectural gasket.

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