JPH08128122A - Joint gasket for building - Google Patents

Abstract

PURPOSE: To crush a gasket flat during the installation of a panel, and restore and mount the gasket after it is set thereby to simplify panel mounting work, and maintain a watertight function of the gasket surely, and correct easily positional deviation of a panel during the execution of work, and further finish the construction work satisfactorily, reduce a construction period and save manpower as well. CONSTITUTION: An air intake 4 is formed on a side surface of a gasket main body which seals a hollow part 3 of a hollow-shaped elastic gasket 1 in structure while an intake tube 5 is installed to the air intake 4 and connected to a suction mechanism. The tube 5 is provided with a blocking device 6 which maintains and releases a closed state of the hollow part 3 of the gasket main body. When mounting an exterior wall panel board 8, such as a building curtain wall, air is preliminarily sucked up from the air confined in the join gasket 1, thereby crushing the gasket 1 flat and lowering the height. After the exterior wall panel 8 has been set, the closure of the tube 5 is released so that an open air is allowed to enter the gasket 1. This constitution makes it possible to restore the gasket 1 and thereby easily hold the exterior wall panel board 8 elastic and airtight.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint gasket used for fixing and finishing fittings such as building outer walls, window glass and other similar plates to a building in building construction work.

[0002]

2. Description of the Related Art In recent years, a curtain wall construction method has been widely 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 plate, which are properly used depending on the design and function of the building.

As a joint material between the panel plates of the PC curtain wall or the metal curtain wall, in order to maintain its watertightness, a synthetic rubber-made hollow elastic gasket a as shown in FIG. JIS A 575
6 "Building gasket", JIS A 5750 "Building foam gasket"), building panels b, c
In this case, as shown in FIGS. 8 (A) and 8 (C), the single type using one joint gasket and the one shown in FIGS. 8 (B) and 8 (D) are used. like,
A double type that uses two pieces is known.

This joint gasket is usually
According to the size of the panel, L-shaped or frame-shaped Gakubuchi-shaped gaskets that have been bent at a right angle are used in advance, and the gaskets are bonded to the side edges of the panel with an adhesive or fitted in the groove in the factory. After being produced and brought to the construction site as it is, it is installed on the outer wall of the building.

[0005]

By the way, the gasket is swelled in a dimension larger than the joint width, and when the panel of the outer wall is constructed at the construction site, the panels are attached in order from the end to the gasket. Although there is no problem in pressing them together, it is often the case that the panels are already attached to both sides of the panel to be attached during the work process in the construction work, and it is unavoidable to set the panel between them.
In this case, it is necessary to set the panel between the panels with a gap of a specified joint width, but the gasket already fixed to the side surface of the panel will force the panel to be pushed in, resulting in a single type. Will be laid sideways on the gasket, and in the case of the double type, the side surfaces of the gasket will come into contact with each other, and the repulsive force will be large and when the panel is set
The gasket height of the double type hollow gasket for PC curtain wall for 25 mm joint is 22 mm, and when this gasket is attached to the side surface of the panel of 4500 mm x 2700 mm, the repulsive force is about 10 to 20 k.
g / m, 100 kg or more per panel, it is difficult to install, and if the core of the gasket is misaligned, it will not be possible to secure sufficient watertight performance after installation, and it will be easy to handle and secure. There was a problem.

The present invention is intended to easily eliminate these conventional drawbacks. The gasket is compressed at the time of construction and swells after the construction to simplify the panel mounting work and sufficiently secure the watertight function of the gasket. It is an object of the present invention to provide a gasket having a simple structure and an inexpensive form, which can easily handle the correction of the positional deviation after the construction, and has a good finish, which can shorten the construction time and save labor.

[0007]

According to the present invention, an intake port is formed on a side surface of a gasket body having a hollow elastic gasket as a sealing structure, and an intake tube is provided at the intake port so as to be connected to a suction mechanism. In addition to the above, the tube is provided with closing means for maintaining and releasing the closed state of the hollow portion of the gasket body.

[0008]

[Function] When mounting an outer wall panel plate such as a PC curtain wall or a metal curtain wall of a building construction, air is previously sucked from the hollow portion inside the joint sealing gasket, and the gasket is flattened and compressed, After lowering the height and completing the setting of the outer wall panel plates, when the tube is unsealed, the outside air enters the gasket, the gasket swells, and the outer wall panel plates are elastically kept watertight.
Each panel board can be easily set in a predetermined position.

[0009]

EXAMPLE An example of the present invention will be described with reference to the frame-shaped examples shown in FIGS. 1 to 5. The hollow portion 3 of the hollow elastic gasket 1 is described.
An air intake port 4 is formed on the side surface of the gasket body having a sealed structure, and an intake tube 5 is provided at the air intake port 4 so as to be connected to a suction mechanism. The construction is provided with a closing means 6 for maintaining and releasing the closed state, and as a construction joint gasket, the panel mounting work is improved and the watertight function of the joint gasket after construction is secured.

As the tube 5, a flexible tube made of synthetic resin, for example, a diameter of 5 to 8 mm and a length of 100 to 5 is used.
The closing means 6 is detachably provided near the open end of the tube, and the closing means 6 is a clip body for biasing a pair of flexible pieces in the closing direction by a spring member. The flexible piece is used to press and seal the end portion or the folded end portion of the tube 5 and to open it by removing a clip. A sealing plug (not shown) is provided at the opening end of the tube. May be attached so that the tube opening can be closed or opened to the atmosphere, or a simple valve can be attached.

The gasket body is made of an elastic material such as a filler such as silica, a vulcanizing agent for organic peroxide, a foaming agent and the like, if necessary, such as silicone rubber, chloroprene rubber and EPDM rubber. , A ring having a curved head portion, a leg portion provided with an adhesive layer 7 or a fitting portion (not shown) on a surface to be adhered to the panel plate 8 and extending along the periphery of the panel plate as shown in FIG. And the hollow chamber in the gasket body is in ventilated communication.
It is provided with a tube 5 and a tube 5 so that the gasket 1 can be compressed or expanded. For example, a double type hollow gasket for 25 mm joint has a compression repulsive force of 1 when set.
It is set to 0 to 20 kg / m. Further, the gasket main body has a linear shape divided by the sealing end, an L-shaped one bent at a right angle as shown in FIG. 4, a frame-shaped one, or a hollow connecting member 9 connected to a corner. However, it is also possible to attach a sealing material 10 and a backup material 11 between the panels 8 as needed for the construction to form the outer wall surface between the panels 8. Further, the gasket 1
When there is an end face, the end plate 2 is bonded and fixed to the end face to form a sealing end portion, or a connecting member for relay is crimped to use the hollow portion 3 as a sealing structure.

Further, the suction port 4 formed in the gasket 1 is formed at a position near the maximum width when the gasket 1 is compressed, and it is considered not to be provided at a position where the watertight function is disturbed. .

In any case, when the panel plate 8 to which the joint gasket 1 is attached is attached as an outer wall at a construction site, the air in the gasket hollow portion 3 is sucked from the tube 5 attached to the side surface of the gasket 1. 3, the gasket 1 is compressed and flattened as shown in FIG. 3 to reduce the height of the gasket 1, and the tube 5 is sealed by the closing means 6 as it is, so that the panel 1 is kept at a predetermined position while keeping the gasket 1 low. Can be easily attached to. When the tube 5 is released from the hermetically sealed state and opened to the atmosphere after the panel mounting is completed, the gasket 1 tries to restore to the original height of the bulge and is in close contact with the gasket 1 to ensure a sufficient watertight function. .

In this case, the height of the gasket is 22 mm.
(In the case of a double type gasket) By sucking the air in the hollow portion 3 of the gasket 1 from this tube 5 before attaching the panel plate 8 to the outer wall, the gasket is about 10 to 11 mm in the height direction. And the height is less than half of the original height. For the suction work, a suction force of a household vacuum cleaner or a portable suction device is sufficient, and the required time is about 3 to 5 seconds. After the suction is completed, the tube can be closed and the panel mounting work can be easily completed while the height of the gasket 1 is low.
Furthermore, when the sealing of the tube 5 is released after the panel is attached, the outside air enters and the gasket 1 returns to its original state, so that a sufficient watertight function can be secured.

In the example of FIG. 6, the gasket 1 is provided on the joint surface of each panel plate 8 via the adhesive layer 7, and the adjacent panel plates 8 and 8 are of a double type in which the gaskets are joined together. The same applies even if the adhesive layer 7 is replaced with one fixed at the fitting portion.

In the example of FIG. 7, the linear gaskets 1, 1
Are connected to each other in an L shape with a hollow connecting member 9 interposed therebetween to form a gasket body.
The gaskets 1 and 1 are internally communicated with each other to allow ventilation.

[0017]

According to the present invention, an intake port is formed on the side surface of a gasket body having a hollow elastic gasket as a sealed structure.
By constructing an intake tube at the intake port so that it can be connected to a suction mechanism, and by providing the tube with closing means for maintaining and releasing the closed state of the hollow portion of the gasket body, When installing an outer wall panel such as a PC curtain wall or a metal curtain wall, air is previously sucked from the hollow part inside the joint sealing gasket, and the gasket is flattened and compressed to lower its height. After the plates are set, the tube is unsealed to allow the outside air to enter the gasket and restore the gasket to elastically maintain watertightness between the panels of the outer wall panels, simplifying panel installation work and making the gasket watertight. The function is fully secured, the positional deviation of the panel during construction can be easily handled, and the finished product is good, which shortens the construction and saves labor. It becomes possible, in which can contribute to greatly savings in construction costs.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

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

FIG. 3 is a vertical cross-sectional view showing an operating state of the example of FIG.

FIG. 4 is a perspective view of another example of the present invention.

FIG. 5 is a vertical cross-sectional view of the usage state of the present invention.

FIG. 6 is a vertical cross-sectional view of another usage state of the present invention.

FIG. 7 is a perspective view of yet another embodiment of the present invention.

FIG. 8 is a vertical cross-sectional view of a conventional example in use, in which (a) is a single adhesive type and (b) is a double adhesive type.
(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 2 End plate 3 Hollow part 4 Intake port 5 Tube 6 Closing means 7 Adhesive layer 8 Panel plate 9 Connecting member 10 Sealing material 11 Backup material

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location E04F 13/08 Y 9127-2E E06B 3/62 Z (72) Inventor Junya Ishida Yoshino, Omiya City, Saitama Prefecture Town 1-406-1 Shin-Etsu Polymer Co., Ltd. Tokyo factory

Claims (5)

[Claims] 1. An air intake port is formed on a side surface of a gasket body having a hollow elastic gasket in a sealed structure, and an intake tube is provided at the air intake port so as to be connected to a suction mechanism. A joint filler gasket for construction, characterized in that it is provided with a closing means for maintaining and releasing a closed state of the hollow portion of the gasket body. 2. The gasket according to claim 1, wherein the tube is a flexible pipe, and a closing means is detachably provided near an open end of the tube. 3. The closing means is a clip body for urging a pair of flexible pieces in a closing direction by a spring member, and the flexible piece can press-seal and simultaneously open the tube. Or the gasket according to 2. 4. The gasket body has a curved head portion, and a leg portion is provided with an adhesive surface or a fitting portion to a panel plate,
The gasket according to claim 1, 2 or 3, wherein the gaskets are connected in a ring shape and the hollow chambers are in ventilating communication. 5. The gasket body has a curved head portion, and a leg portion is provided with an adhesive surface or a fitting portion to a panel plate,
The gasket according to claim 1, 2 or 3, wherein sealing ends are provided on both ends of the gasket body.