JP2893642B2 - Construction joint construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jointing method for a building used for fixing finishing of a fitting such as an outer wall of a building, a window glass, and other similar boards to a building in a building work such as a building. .

[0002]

2. Description of the Related Art In recent years, a curtain wall construction method has been actively used as an exterior finish for building construction. Depending on the material, there are a PC curtain wall made of PC concrete and a metal curtain wall made of an aluminum plate or a stainless steel plate, which are properly used depending on the design and function of a building.

As a joint material between the panel panels of the PC curtain wall or the metal curtain wall, a hollow elastic gasket a made of synthetic rubber as shown in FIG. JIS A 575
6 “Building gasket” and JIS A 5750 “Building foam gasket”) are used for building panels b and c.
In this case, as shown in FIGS. 8A and 8C, a single type using one joint gasket, and FIGS. 8B and 8D are used. like,
A double type using two is known.

[0004] The joint gasket is usually
According to the dimensions of the panel, a gasket that has been processed into an L-shape or frame-shaped gabuchi shape bent at a right angle in advance is used, and is bonded to the side edge of the panel with an adhesive or fitted into the groove at the factory. After being produced and transported to the building site as it is, it is often installed on the outer wall of the building.

[0005]

By the way, the gasket is in a swelling state which is larger in size than the joint, and when the outer wall panel is constructed at the construction site, the panels are sequentially attached from the end. There is no problem when the gaskets are pressed in contact with each other, but it is often necessary to set the panels in the state where the panels are already mounted on both sides of the panels to be mounted in the work process in the construction work. In this case, it is necessary to set the panel between the panels with a predetermined gap between the panels, but the gasket that is already fixed to the side of the panel will force the panel to be pushed in. In the case of a double type, the gasket side faces and the side face of the gasket hit each other, and the repulsion force is large.When setting a panel, for example, the gasket height of a double type hollow gasket for a 25 mm joint for a PC curtain wall is When this gasket is attached to the side surface of a 4500 mm x 2700 mm panel at 22 mm and constructed, the repulsion force is about 10 to 2
It becomes 0 kg / m ² , and it becomes 100 kg or more per one panel, and it is difficult to perform the work. If the core of the gasket is misaligned, the watertight performance after the work cannot be sufficiently secured, and the handling and safety There was also a problem on.

The present invention is intended to easily eliminate these conventional drawbacks, and the gasket is shrunk flat at the time of construction by a vacuum utilization method and expanded after the construction, so that the gasket is always correctly placed between the panels. The use of a vacuum, which simplifies panel mounting work and ensures the watertight function of the gasket, can easily correct misalignment after construction, and achieves a good finish, shortens construction time and saves labor It is intended to provide an architectural joint construction method in an easy-to-handle and inexpensive form.

[0007]

SUMMARY OF THE INVENTION The present invention relates to an architectural joint construction method for maintaining a panel joint in a watertight manner by interposing a gasket in a gap between architectural panels and having a curved surface-shaped head. An elastic hollow gasket having a dome-shaped cross section connected to the flat leg is attached to the panel joint surface at the adhesive surface or the fitting portion of the flat leg, and the inclined side surface of the gasket. Through a suction pipe attached at or near the maximum width position of the part, air is sucked from the gasket hollow part by the suction mechanism, and the height of the gasket is lowered by making the curved head of the gasket flat in the height direction Then, after maintaining the state by the closing means attached to the suction pipe, the panel is set, and then the suction pipe is opened, and air is flowed into the gasket hollow part to raise the gasket body to a height. The panel joints by restoring the direction is to watertight held.

[0008]

When mounting an outer wall panel plate such as a PC curtain wall or a metal curtain wall of a building, air is previously sucked from a hollow portion in a sealing gasket of a building joint, and the gasket is crushed flat and its height is reduced. When the sealing of the suction tube is released by the closing means after the setting of the outer wall panel plate is completed, the outside air enters into the gasket, the gasket expands, and the outer wall panel plates are elastically kept watertight between the panels. The panel boards can be set correctly and can be easily set at predetermined positions.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to a frame-shaped example shown in FIGS. A dome-shaped cross section having a leg parallel to the panel surface and a curved surface-shaped head abutting on an adjacent panel via an inclined side surface extending divergently in a direction perpendicular to the inner surface of the leg. A gasket main body 1 having a hollow elastic gasket hollow portion 3 in a sealed structure, and an intake port 4 formed at or near the maximum width position of the inclined side surface of the gasket main body 1, and a suction pipe is provided in the intake port 4. 5 is provided so as to be connectable to a suction mechanism, and the pressure of the hollow portion 3 of the gasket main body is reduced by the suction mechanism via the suction pipe 5 and the inner surface of the leg is compressed flat to form a gasket height. Lower, then close the open end of the suction tube and seal A gasket provided with a closing means 6 in the suction pipe 5 for maintaining the state and opening the suction pipe open end after the panel setting and allowing air to flow into the hollow portion of the gasket main body to restore the head to the inner surface of the leg. Is used as a gasket at the time of construction joints for construction, to improve the panel mounting work and to ensure the watertight function of the construction joint gasket after construction.

As the suction tube 5, a flexible tube made of synthetic resin, for example, having a diameter of 5 to 8 mm and a length of 100 to 50 is used.
0 mm, a closing means 6 is detachably provided near the open end of the tube, and the closing means 6 uses a clip body for urging a pair of holding pieces in a closing direction by a spring member.
The holding piece is detachably provided at the end or the folded end of the tube 5 so that the tube opening can be pressed and sealed and the tube can be opened by removing the clip body. A plug (not shown) may be attached to the open end so that it can be fitted and removed so that the tube opening can be closed or opened to the atmosphere.

The gasket body is made of an elastic material such as silicone rubber, chloroprene rubber or EPDM rubber to which a filler such as silica, a vulcanizing agent for organic peroxide, a foaming agent and the like are added as required. A leg part having a curved surface-shaped head and having a horizontal surface on the inner surface is provided with an adhesive layer or a fitting part (not shown) on the bonding surface 7 to the panel plate 8;
As shown in FIG. 1, a frame shape is formed along the periphery of the panel plate,
The gasket body 1 has a configuration in which the hollow portion 3 in the gasket body 1 is communicated with the ventilation.
The gasket body 1 is vertically lowered with respect to the inner surface of the leg to be flat (FIG. 3), provided at or near the maximum width position of the gasket inclined side surface located above the inner surface of the leg on the side surface of compression or expansion of the gasket body 1 by a removable occlusion means Yes in consideration as (Fig. 2) may, for example, in the hollow gasket double type for 25mm joints, compression repulsive force during set as 10-20 kg / m ² It is made to become. The gasket main body 1 may be a straight one partitioned at the sealing end or an L bent at a right angle as shown in FIG.
It is used in the shape of a letter, in the shape of a frame, or by connecting the hollow connecting member 9 to a corner to form a square.
For construction purposes, a sealing material 10 and a backup material 11 may be provided between the panels 8 as needed to provide an outer wall surface. Further, when the gasket main body 1 has an end surface, the end plate 2 is bonded and fixed to the end surface to form a sealing end portion, or the connecting member 9 for relay is pressed to form the hollow portion 3. Used as a sealed structure.

Further, the intake port 4 formed in the gasket 1 is formed at a position near the maximum width when the gasket body 1 is compressed, so that the suction pipe does not become an obstacle when the gasket 1 is flat, and the watertight function is not hindered. Never come.

In any case, when the panel plate 8 on which the joint gasket main body 1 for building is mounted as an outer wall at a construction site, the hollow portion of the gasket main body 1 is drawn from the suction pipe 5 attached to the side surface of the gasket main body 1. 3, the gasket main body 1 is crushed flat as shown in FIG. 3 to lower the height of the gasket main body 1, and the suction pipe 5 is sealed with the closing means 6 as it is, thereby lowering the gasket main body 1. The panel joint 8 can be easily attached to a predetermined position and a joint can be constructed. After the panel mounting is completed, the suction pipe 5 is opened with the closing means 6 by the closing means 6 to release the sealed state and open to the atmosphere, and the gasket main body 1 is restored to its original height in the height direction. It is brought into a state where a sufficient watertight function can be secured by tightly pressing the panels.

In this case, the height of the gasket is 22 mm.
(In the case of a double-type gasket), the gasket is suctioned about 10 times in the height direction by sucking the air in the hollow portion 3 of the gasket body 1 from the suction pipe 5 before attaching the panel plate 8 to the outer wall. １１11 mm, which is less than half the original height. The suction operation is sufficiently performed by a suction force of a household vacuum cleaner or a portable suction device, and the required time is about 3 to 5 seconds. After the suction is completed, the panel mounting operation can be easily completed while the height of the gasket main body 1 is low by closing the suction tube. Furthermore, when the closing means 6 is removed after the panel mounting is completed and the sealing of the suction pipe 5 is released, the outside air flows in and the gasket main body 1 returns to its original state, and a sufficient watertight function can be secured, and thereafter the suction pipe 5 is removed.

In the example shown in FIG. 6, a gasket main body 1 is provided on the joint surface of each panel plate 8 with an adhesive layer 7 interposed therebetween. The same applies to the case where a material fixed at the fitting portion is used instead of the adhesive layer 7.

In the example shown in FIG. 7, the gasket body is formed by connecting the linear gasket bodies 1 and 1 in an L-shape with the hollow connecting member 9 interposed therebetween. 1, 1 and 1 are internally connected to each other so that they can be ventilated.

[0017]

The present invention relates to an architectural joint construction method for maintaining a panel joint in a watertight manner by interposing a gasket in a gap between the architectural panels. An elastic hollow gasket with a dome-shaped cross-section connected to the flat leg is attached to the panel joint surface at the adhesive surface of the flat leg, or the maximum width of the inclined side of the gasket. Through the suction tube attached at or near this position, air is sucked from the gasket hollow by the suction mechanism, and the height of the gasket is reduced by making the curved surface-shaped head of the gasket flat in the height direction, After maintaining the state by the closing means attached to the suction pipe, the panel is set, then the suction pipe is opened, and air is flowed into the hollow portion of the gasket to restore the gasket body in the height direction. By holding the panel joints watertight, when installing an outer wall panel plate such as a PC curtain wall or a metal curtain wall of a building, air is suctioned in advance from the hollow portion in the sealing gasket for joints by use of reduced pressure, and the closing means of the closing means is used. By attaching and detaching, the gasket is evenly squashed flat in the direction of the inner surface of the leg, and its height is reduced, so that the gasket is always properly inserted between the panels, making it extremely easy to install the panels. The sealing is released, the outside air flows into the gasket, the gasket is restored in a uniform direction without distortion, and the outer wall panels can be elastically kept watertight, jointing work is safe and easy, and panel mounting work Simplicity and sufficient watertightness of the gasket to easily handle misalignment of panels during jointing And yet those that finish good and also makes it possible to achieve a short-term reduction and labor saving of site construction work does not take construction labor at reduced use, it can contribute to greatly savings of the construction cost.

[Brief description of the drawings]

FIG. 1 is a front view showing a joint gasket used in a construction method according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along line xx of FIG.

FIG. 3 is a longitudinal sectional view showing an operation state of the example of FIG. 2;

FIG. 4 is a perspective view of a joint gasket according to another example of the present invention.

FIG. 5 is a longitudinal sectional view of the joint gasket of the present invention in use.

FIG. 6 is a longitudinal sectional view of a use state of another joint gasket of the present invention.

FIG. 7 is a perspective view of still another joint gasket embodiment of the present invention.

FIGS. 8A and 8B are longitudinal sectional views of a conventional example in use, where FIG. 8A is a single-type adhesive type, FIG.
(C) shows an example of a single fitting type, and (d) shows an example of a double fitting type.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gasket main body 2 End plate 3 Hollow part 4 Inlet port 5 Suction pipe 6 Closure means 7 Adhesive layer 8 Panel board 9 Connecting member 10 Sealing material 11 Backup material

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Junya Ishida 1-46-1 Yoshino-cho, Omiya-shi, Saitama Shin-Etsu Polymer Co., Ltd. Tokyo plant (56) References Open-ended 1982-77586 (JP, U) Open-ended 1974-75514 (JP, U) Actually open Showa 53-49213 (JP, U) Actually publicly published Showa 51-48455 (JP, Y2) (58) Fields investigated (Int. Cl. ⁶ , DB name) E04B 1 / 684 E04B 1/682

Claims (4)

(57) [Claims] 1. A jointing method for building, wherein a gasket is interposed between gaps between building panels to maintain a panel joint in a watertight manner, the curved joint having a curved head, and a gap narrowed downward. An elastic hollow gasket having a dome-shaped cross section connected to the flat leg portion on the inclined side surface portion is attached to the panel joint surface at the bonding surface of the flat leg portion or the fitting portion, and at or near the maximum width position of the inclined side portion of the gasket Air is sucked from the gasket hollow part by the suction mechanism through the suction tube attached to the gasket, the height of the gasket is reduced by making the curved surface-shaped head of the gasket flat in the height direction, and then to the suction tube. After maintaining the state by the attached closing means, the panel is set, and then the suction pipe is opened, air is flown into the hollow portion of the gasket to restore the gasket main body in the height direction, and the panel joint is opened. Joint construction method characterized by maintaining watertightness. 2. The closing means uses a clip body for urging a pair of holding pieces in a closing direction by a spring member, and presses and seals the holding pieces near an opening end of the suction pipe to vacuum a gasket hollow portion. The construction joint construction method according to claim 1, wherein the holding piece is detached from the suction pipe and air is caused to flow into the hollow portion while maintaining the state. 3. A gasket body is formed around the outer periphery of a panel in a state where the hollow portion is communicated in a substantially L-shape having a corner portion bent at a right angle, or a rectangular shape in which a hollow connecting member is connected to a frame or a corner. 3. The method according to claim 1, wherein the joint is installed along the joint. 4. The gasket main body, wherein the flat leg portion is disposed in contact with a concave portion formed to face a joint surface between panels, and is used together with a sealing material and a backup material provided between the panels. Item 4. The joint construction method for construction according to item 1, 2 or 3.