JPH10115020A - Joint gasket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve water cut-off performance by inserting a sheet-like long gasket into a joint section keeping its cross section U-like and forming so that the external surfaces of both ends are fixed to the wall face of the joint section through an adhesive layer. SOLUTION: A sheet-like long gasket 1 is formed of thin metal or plastic, and adhesive double coated tapes 2 such as butyl tape are adhered on both ends of the gasket 1 in the cross direction. When executing work, the gasket 1 is folded in the cross direction at a position near the center so that the adhesive double coated tapes 2 face the outside, and inserted into a joint section X keeping its cross section U or V like, and the adhesive agent layers of the tapes 2 are closely fixed to the wall faces A of the joint section X. Through such operation, even if there is uneveness in the wall face A, the gasket can easily inserted into the joint section X, and water cut-off performance can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint gasket, and more particularly, to a joint gasket in which a molded plate constituting an outer wall of a building is erected and inserted into joints between the molded plates to stop water. It is.

[0002]

2. Description of the Related Art Conventionally, a joint gasket to be inserted into a joint of a molded plate constituting an outer wall of a building, for example, an ALC panel, a PC panel, etc., has been made of an elastic material such as EPDM sponge, chloroprene rubber, silicone rubber, or the like. A joint gasket having a width greater than the joint width formed of a material is used. The joint gasket is inserted into the joint in a state where the joint gasket is crushed in the width direction, and is directly utilized by using a repulsive force (restoring force) of the joint gasket. Alternatively, the joint is generally fixed to the wall surface defining the joint through an adhesive layer to stop the joint from water.

[0003] The joint gasket utilizing the repulsive force when crushed is such that a force is always applied in a direction in which the joint wall is in close contact with a wall defining the joint, and the joint gasket follows a certain degree of unevenness of the wall. Therefore, it was considered to be a joint gasket having high waterproofness.

However, when the joint gasket as described above is inserted into the joint, the joint gasket is forcibly inserted into the joint by pressing the rear surface side with a hand or a driver while crushing the joint gasket in the width direction. In other words, it is very difficult to insert the joint gasket into the joint without being twisted, and it is impossible to insert the joint gasket at an extremely narrow joint, or to insert the joint gasket too deep at a wide joint. Since it was difficult to mount the device at a certain position, a sufficient water stopping effect could not be obtained depending on the mounting condition. In addition, even when an adhesive layer is used in combination, an adhesive layer such as a double-sided adhesive tape previously attached to a joint gasket may come off or be rounded when inserted into the joint. In addition, even when it can be inserted normally, the force of pressing the adhesive layer against the wall surface and fixing the adhesive layer only depends on the repulsive force of the joint gasket (because the joint gasket exists over the entire width of the joint, the finger Alternatively, there is no gap for inserting the jig, and the adhesive layer cannot be pressed in the direction of the wall surface due to these.) Therefore, there was a case where sufficient adhesion by the adhesive layer could not be obtained, and the waterproof property was hindered.

Further, in recent years, a hollow portion is formed in a joint gasket, the air in the hollow portion is evacuated, and the joint gasket is first inserted into the joint portion in a flat state, and then the vacuum in the hollow portion is released. A method has been proposed in which the cross-sectional shape of the joint gasket is restored to the inside of the joint portion so that the joint gasket is brought into close contact with the wall surface. There is a problem that the remaining joint gasket which has been cut and the like and the vacuum has been released cannot be mounted in the same manner thereafter.

[0006] The present invention has been made in view of the above-mentioned problems of the conventional joint gasket,
It is an object of the present invention to provide a joint gasket which can be easily inserted into a joint portion and has excellent water stopping properties.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a long joint gasket in the form of a sheet, wherein the joint gasket has a substantially U-shaped or V-shaped cross section. The joint gasket was inserted into the joint, and the outer surfaces near both ends were adhered and fixed to the wall surfaces defining joints by an adhesive layer. According to the joint gasket according to the present invention, since the joint gasket has a sheet-like shape whose shape is easily deformed, the joint gasket has a small repulsive force even when the joint gasket is bent into a substantially U-shaped or V-shaped cross section. The sheet-like joint gasket according to the present invention, which can be easily inserted regardless of the width thereof and is inserted into the joint with a substantially U-shaped or V-shaped cross section, has a finger from its open end. Alternatively, a jig can be inserted and the vicinity of both ends in the width direction can be pressed in the direction of the wall surface defining the joint, so that the adhesive layer can firmly adhere to the wall surface and ensure sufficient adhesion. The joint gasket exhibits a water stopping effect (see FIGS. 3 to 5).

Here, it is preferable that the long joint gasket according to the present invention is easy to be bent near the center in the width direction as compared with other portions. This means that the joint gasket near the center in the width direction can be more easily bent and bent than other parts by further reducing the wall thickness or by using a material that is easily deformed. The joint gasket has a substantially U-shaped cross section.
The joint gasket can be inserted into the joint in a constant cross-sectional state because it can be easily formed into a V-shape or V-shape, and can be inserted into the joint more smoothly. (See FIGS. 6 and 7).

Further, it is preferable that the sheet-like long joint gasket according to the present invention has a ridge at the end in the width direction. This is because the joint gasket having such a convex streak is attached to the joint with the joint having a substantially U-shaped or V-shaped cross section with the convex streak facing inward. The strip serves as a back-up part of an irregular sealing material or a sealing part for rainwater, and an internal space is defined inside the ridge, so that the internal space becomes a water supply (Mizumichi), so that it has a self-shape. It is preferable because it becomes a joint gasket having a high water-blocking property having a tap water (see FIG. 9).

Further, it is preferable that the sheet-like long joint gasket according to the present invention has a bent piece at an end in the width direction. This is this folded piece,
First, by attaching the joint gasket to the chamfered portion of the wall material existing near the entrance of the joint portion, the joint gasket mounting position can be made more accurate, and the bent piece serves as a drainer. This is preferable because rainwater can be drained without contacting the small face of the wall material (see FIG. 11).

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the joint gasket according to the present invention will be described below in detail with reference to the drawings.

Here, FIGS. 1 to 5 show the basic form of the joint gasket according to the present invention. The joint gasket 1 is a long sheet-like sheet which can be easily bent near the center in the width direction. It is a joint gasket. The material of the joint gasket 1 is not particularly limited. For example, the joint gasket 1 may be made of a thin metal or plastic. However, in consideration of the followability when the wall material moves, a material such as elastic rubber is used. Materials are preferred.

At both ends in the width direction of the joint gasket 1, double-sided adhesive tapes 2, 2 such as butyl tape are attached.
The joint gasket 1 is bent in the vicinity of the center in the width direction so that the double-sided adhesive tapes 2 and 2 come to the outer surface, and the forming plates A and A are formed in a substantially U-shaped cross section as shown in FIGS. Is inserted into the joint X formed between them. At this time, since the joint gasket 1 according to the present invention has a thin sheet shape, there is almost no repulsive force even if the joint gasket 1 is bent into a substantially U-shaped cross section, and the joint gasket 1 is smoothly inserted regardless of the width of the joint portion X. it can. That is, in a place where the width of the joint portion X is narrow, the joint gasket 1 according to the present invention is inserted in a flat U-shape as shown in FIG. 4 (b), the joint gasket 1 according to the present invention can be inserted smoothly because it is thin and has little repulsive force. .

The joint gasket 1 inserted into the joint portion X is pressed near the both ends in the width direction toward the wall surfaces of the forming plates A, A defining the joint portion X, and is present on the outer surfaces of both ends. Since the adhesive layers of the double-sided adhesive tapes 2 and 2 are closely fixed to the wall surfaces of the joint portions X, a waterproofing effect against rainwater or the like is exhibited. Also in this case, since the joint gasket 1 according to the present invention has a thin sheet shape inserted into the joint portion X in a substantially U-shaped or V-shaped cross section, the finger or the finger is inserted from the opening end thereof. By inserting a jig, the vicinity of both ends of the joint gasket 1 can be reliably pressed in the direction of the wall surfaces of the forming plates A, A that define the joint portion X. Even when the gasket 1 exists, the plate surface of the joint gasket 1 is
Can be deformed as shown in (1), the two-sided adhesive tapes 2 and 2 can be securely adhered and fixed by the adhesive layer, and a joint gasket having high water stopping property can be obtained.

Next, the joint gasket 10 shown in FIGS. 6 and 7 is a sheet-like long joint gasket similar to the joint gasket 1, and one joint gasket is provided in the width direction of the joint gasket 10. Alternatively, a plurality of concave stripes 11 are formed. With such a joint gasket 10, the vicinity of the center in the width direction is more likely to be bent than other parts, so that the joint gasket 10 tends to have a substantially U-shaped or V-shaped cross section. The joint gasket 10 is bent along the concave streaks 11 that are easily bent at the same time as the insertion into the joint X is more smoothly performed. It becomes a joint gasket that can be inserted.

Further, the joint gasket 20 shown in FIGS. 8 and 9 is one in which a thin fin-like ridge 21 is erected at one widthwise end of a long sheet-like joint gasket.
When the joint gasket 20 is configured as described above, when the joint gasket 20 is attached to the joint portion X in a substantially U-shaped cross-section with the ridge 21 present at the end thereof facing inward, the ridge is formed. As shown in FIG. 9, 21 serves as a backup portion of the irregular sealing material B or a sealing portion for rainwater, and an inner space Y is defined inside the ridge 21. It becomes a highly water-sealing joint gasket having a water supply (water path) in its own shape in order to be water-filled.

Further, the joint gasket 30 shown in FIGS. 10 and 11 has a sheet-like long joint gasket provided with a bent piece 31 which is bent in one direction at one end in the width direction. is there. In the case of such a joint gasket 30, this bent piece 31 is first attached to a chamfered portion Z of a molded plate A near the entrance of the joint portion X as shown in FIG. Joint X of gasket 30
The mounting position in the inside can be made more accurate, and the bent piece 31 exhibits a function of draining,
This is a joint gasket that can drain the rainwater without contacting the wall surface of the molded plate A.

The most significant feature of the joint gasket according to the present invention described above with reference to the drawings is that the joint gasket body has a thin sheet shape. This allows
The joint gasket has a substantially U-shaped or V-shaped cross-section and can be smoothly inserted regardless of the width of the joint, and does not block the entire width of the joint even when inserted into the joint. For this purpose, a finger or jig is inserted from the front opening end, and the vicinity of both ends of the joint gasket can be surely pressed in the direction of the wall surface that defines the joint, and the adhesion and fixation by the adhesive layer is ensured. Therefore, a joint gasket having high water blocking properties is obtained.

The joint gasket according to the embodiment of the present invention has been described above. However, the present invention is not limited to the above-described embodiment.
Various modifications and changes are possible. For example, in the above-described embodiment, the joint gasket 10 that is easily bent near the center in the width direction is formed by forming the concave streak 11 on the sheet-like plate surface. For example, the joint gasket 10 is made of metal or hard plastic. Between the long sheet-like boards
By using a joint gasket having a structure connected by easily deformable materials such as rubber, a joint gasket that is easily bent near the center in the width direction may be used. Further, as the joint gasket having the backup portion of the irregular-shaped sealing material B, or the ridge 21 serving as a sealing portion for rainwater, or the bent piece 31 serving as a positioning and draining function at both ends in the width direction of the joint gasket. Well,
Further, a joint gasket provided with all of the above-described configurations, or a joint gasket obtained by appropriately combining any of the above-described configurations may be used.

[0020]

According to the joint gasket according to the present invention described above, since the joint gasket has a sheet-like shape that is easily deformed, the joint gasket can be folded into a substantially U-shaped or V-shaped cross section. The joint gasket according to the present invention, which has a low repulsion force and can be easily inserted regardless of the width of the joint portion and is inserted into the joint portion in a substantially U-shaped or V-shaped cross-section, A finger or jig can be inserted from the open end and the area near both ends in the width direction can be pressed in the direction of the wall surface that defines the joint, so that the adhesive layer securely adheres to the wall surface. This has the effect of forming a joint gasket that exhibits a sufficient water stopping effect.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a joint gasket according to the present invention.

FIG. 2 is a perspective view showing a state in which the joint gasket shown in FIG. 1 is inserted into a joint.

FIG. 3 is a cross-sectional view showing a primary sealing method of a joint using the joint gasket shown in FIG. 1;

4A and 4B are cross-sectional views showing a primary seal construction method using the joint gasket shown in FIG. 1, wherein FIG. 4A is used for a joint having a small width, and FIG. It is the figure which showed the state used for the joint part, respectively.

FIG. 5 is a front view showing a state where the joint gasket shown in FIG. 1 is used in a joint where unevenness exists.

FIG. 6 is a side view showing another example of the joint gasket according to the present invention, and a side view showing a bent state thereof.

FIG. 7 is a side view showing still another example of the joint gasket according to the present invention, and a side view showing a bent state thereof.

FIG. 8 is a perspective view showing still another example of the joint gasket according to the present invention.

FIG. 9 is a cross-sectional view illustrating a secondary sealing method of a joint using the joint gasket illustrated in FIG. 8;

FIG. 10 is a perspective view showing still another example of the joint gasket according to the present invention.

FIG. 11 is a cross-sectional view showing a primary seal construction method of a joint using the joint gasket shown in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Sheet-like long joint gasket 2 Double-sided adhesive tape 10 Sheet-like long joint gasket having a concave line near the center in the width direction 11 Concave line 20 Sheet-shaped long line with a convex line standing at one end in the width direction Nasal joint gasket 21 Convex strip 30 Sheet-like long joint gasket with bent piece extended at one end in width direction 31 Folded piece A Molded plate B Irregular sealing material Z Chamfered portion of molded plate X Jointed portion Y Inside space

Claims (4)

[Claims] 1. A long joint gasket having a sheet-like shape, wherein the joint gasket is inserted into the joint with a substantially U-shaped or V-shaped cross section, and an outer surface near both ends is bonded by an adhesive layer. Joint gaskets, each of which is fixedly attached to a wall surface defining a joint portion. 2. The joint gasket according to claim 1, wherein the joint gasket is more easily bent near the center in the width direction than at other portions. 3. The joint gasket according to claim 1, wherein the joint gasket has a ridge at an end in the width direction. 4. The joint gasket according to claim 1, wherein the joint gasket has a bent piece at an end in the width direction.