JPH08199697A - Sealing member and construction method therefor - Google Patents

Abstract

PURPOSE: To provide stable airtightness and watertightness for a long term by temporarily locking between bent spring members by a bonding material, inserting a sealing member in which sealing materials are stuck on the repulsive faces into the gap of a structure, and releasing the temporary lock. CONSTITUTION: A rectangular spring member 4 is bent into a section of U-shape or V-shape, narrow tablet-like sealing materials 6, 6 are stuck on the repulsive faces 4A, 4B through double coated tape or a bonding material, and a bonding agent 5 is poured in between the upper sides of the spring member 4 so as not to be restored. The spring member 4 is constituted out of metal, synthetic resin, natural rubber, a sort of ceramics, composite, or the like, and for the sealing material, synthetic rubber, natural rubber, vinyl chloride, olefin, elastomer or foaming body of urethane, or the like is used. A sealing member 1 formed in this way is inserted in the gap 10 of a structure, the bonding agent 5 is cut off by a cutter or the like so as to release the repulsive force of the spring member 4, and hence the sealing materials 6, 6 are firmly pressed against the sides of the members 11, 11 of the structure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing member which is inserted between adjacent buildings or joints of outer wall materials to prevent water leakage, and a construction method using this member.

[0002]

2. Description of the Related Art Conventionally, various types of sealing members have been proposed for joints between structures such as joints of outer wall materials of prefabricated houses and buildings, roofs and joints of roofs, or joints between members. For example, in Japanese Utility Model Laid-Open No. 3-76901, as shown in FIG. 7, a leg portion 31 protruding from the head portion, elastic seal lips 32 projecting on both sides of the leg portion 31, and directly below the head portion. There is disclosed a seal member including a seal member 33 provided outside the tip of the seal lip 32 in the space between the positioned seal lips 32.

However, the sealing member disclosed in the above publication has a problem that it is very difficult to insert the sealing member into the joint because the sealing material is a foamed sealing material.

[0004]

In the conventional structure shown in FIG. 7, the variation in the gap (joint) between the structures or the members is ± when compared with the factory-produced product. When the joint width increases, the compressibility of the sealing material decreases, so that the pressing force on the sealing surface weakens and the watertightness / airtightness decreases. Further, when the joint width becomes large, there is a problem that the seal member cannot be held and falls. On the contrary, when the joint width is small, it is difficult to insert the seal member, and when the joint width is severe, there is a problem that the seal member cannot be inserted.

Further, the fixed sealing material having watertightness and airtightness causes secular change over a long period of time, which causes stress relaxation that attenuates the pressing force, resulting in deterioration of watertightness and airtightness. In this case, a harmful effect such as the seal member falling off occurs.

[0006] Further, when only the regular sealing material is used, the watertightness and the airtightness are not stable due to the large variation of the compression ratio or the large repulsion of the adherend in contact with the sealing material due to the variation of the gap. was there.

The present invention is intended to provide a sealing member and a method of constructing the same, which are capable of collectively solving the above-mentioned various problems, and an object of the present invention is to insert the sealing member even if there are variations in the joints. (EN) Provided are a seal member which is easy to perform and which can maintain watertightness, airtightness, etc. without lowering the pressing force to the seal surface, and a construction method thereof.

Another object of the present invention is to provide a sealing member which does not deteriorate the watertightness and airtightness due to a decrease in the pressing force on the sealing surface even if the sealing material undergoes secular change over a long period of time. And providing a construction method thereof.

[0009]

In order to achieve the above object, the sealing member of the present invention has a spring member temporarily fixed to a predetermined shape so that a repulsive force is applied, and a spring member disposed on the repulsive surface of the spring member. It is composed of an installed sealing material.

The method of applying a sealing member according to the present invention is a gap for performing a sealing operation on a sealing member in which a sealing material is arranged on the repulsive surface of a spring member temporarily fixed to a predetermined shape so that a repulsive force is applied. Insert into
By the process of releasing the temporary fixing part of the spring member to which the repulsive force is applied, the temporary fixing of the spring member is released in the gap for performing the sealing work, and the sealing material arranged on the repulsion surface is used as the member in the gap. It is designed to be pressure-bonded for sealing.

[0011]

In the sealing member and the method of constructing the same according to the present invention, the spring member to which the repulsive force is applied is temporarily fixed, the seal member is disposed on the repulsive surface, and the seal member is inserted into a gap such as a joint at the construction site. It was made easier by releasing the temporary fixing at the gap and opening the spring material, and by the synergistic effect of the repulsive force of the spring member and the elastic force of the sealing material, it is firmly fixed to the structure, It is possible to provide a sealing member that can be mounted even if the allowance of the gap is large, and that firmly holds the sealing member by the repulsive force of the spring, and that has high airtightness and watertightness, and a method for constructing the sealing member.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A sealing member of the present invention and a method of constructing the same will be described below with reference to the drawings.

1A to 1D are explanatory views showing an embodiment of a sealing member and a method of constructing the same according to the present invention.

In the figure, 4 is a metal such as stainless steel or iron, or a synthetic resin such as vinyl chloride, polyethylene, polypropylene, ABS, natural rubber, BR, NBR or C.
1 shows a spring member made of a synthetic rubber such as R or EPDM, or a composite material of one or several kinds of ceramics. The spring member 4 extends in the depth direction of the gap between the structures as shown in FIG. 1D. For example, a rectangular spring steel plate that has been extended is bent into a U-shaped or V-shaped cross-sectional view. Therefore, the spring member 4 is always provided with a repulsive force for expanding it.

Next, on the upper side of the spring member 4 bent as shown in the drawing, an adhesive 5 is poured between the spring members along the longitudinal direction or at every predetermined position in the longitudinal direction so that the spring member 4 is repulsive. It is temporarily attached so that it will not be restored.

Then, the repulsive surfaces 4A and 4B of the spring member 4
The fixed-point sealing materials 6 and 6 of a short-edged type are adhered and fixed to, for example, via a double-sided tape or the like. As a matter of course, this bonding method may be performed by bonding with an adhesive or the like, and the sealing material may be synthetic rubber such as NBR or NR, natural rubber, vinyl chloride, olefin, urethane elastomer or foam, and the like. A water-swellable sealing material may be selected to enhance the waterproof effect.

As shown in FIG. 1B, the sealing member 1 is provided with joints for outer walls of buildings, joints for roofs and roofs, joints for shutter boxes and windows with houses, basements, concrete panels for underground parking lots. It is inserted into the gap 10 between the members 11 and 12 such as between structures such as joints. Figure 1B
The sectional view of the initial state of the insertion state is shown in FIG.

In the state of FIG. 1B, the sealing member 1 is held between the members 11 and 12 by the elastic force of the sealing materials 6 and 6.

Next, when the upper adhesive 5 between the spring members 4 of FIG. 1B is cut with a cutter or the like, the repulsive force of the spring members is released as shown in FIG. 1C, and the spring members have a V-shaped cross section in the gap 10. The seal members 6 and 6 are spread in a shape and are pressed firmly against the side surfaces of the members 11 and 12. 1D is a perspective view of the sealing member 1 when completed.

2A to 2C show another sealing member of this embodiment and a method of constructing the same. The spring member 4 shown in FIG. 2A is formed into two folds by forming a circular portion 8 in the bent portion in order to further strengthen the repulsive force.

This folded spring member 4 is a commercially available PP.
The tape 9 is extended along the longitudinal direction, folded back in the width direction on both sides of the spring member and temporarily fixed, and the spring member 4 is prevented from opening.

The repulsive surfaces 4A and 4B of the spring member 4
And a sealing material 6 that is shaped so as to surround the outer circumference of the circular portion 8
Are bonded with double-sided tape or the like.

The sealing member 1 thus completed is shown in FIG.
As shown in B, insert into the gap 10 between the members 11 and 12 and PP
When the tape 9 is cut from the center along the longitudinal direction with a cutter, the spring member 4 expands as shown in FIG. 2C to press and fix the sealing material 6 to the side surface of the member. In the configuration of this example, the spring member 6 has the circular portion 8. Therefore, even if the spring member 4 expands or contracts due to vibration such as an earthquake or storm, the spring member is hard to be damaged and is strong.

The configuration shown in FIGS. 3A to 3C shows still another configuration of this example. In this example, the spring member 4 has a shape with many curved portions with an Ω-shaped bent surface, and the upper opening is The cellophane tape 14 is closed, the regular sealing material 6 is bonded to the repulsion surface 4C, and the tacho thread 13 is further arranged substantially at the center of the tape 14. Perforations 15 are formed in the central portion of the tape 14 in the longitudinal direction as shown in FIG. 3C so that the tape can be easily cut with the tacho thread 13.

By inserting such a sealing member 1 into the gap 10 between the members 11 and 12, and pulling the tacho thread 13 in the direction of arrow D as shown in the perspective view of FIG. 3C is cut from the perforation 15 at the center, the temporarily fixed portion is opened, and the spring member 4 is expanded as shown in FIG. 3B, and the sealing material 6 is brought into close contact with the side surfaces of the members 11 and 12 to form a seal.

When the above-mentioned sealing member 1 is fixed in a gap between structures such as joints, the joint bottom is shallower than that of the embodiment shown in FIGS. 1 and 2, and it is only necessary when viewed from the surface. Is excellent. In addition, since it is used for long vertical joints of buildings due to the addition of threads, it is possible to release the temporary fixing by pulling the threads without getting on the scaffolding and performing the releasing operation again to the state of Fig. 3B. There is an advantage that can be done.

Another configuration of this embodiment will be further described with reference to FIGS. 4A and 4B. In this example, the spring member 4 has a substantially semi-elliptical cross section and is folded back so as to have the decorative surfaces 4D and 4D so as to cover the opening. The repulsion surface 4C of the spring member 4 has a fixed sealing material. 6 is adhered. Further, the spring member 4 is temporarily fixed to the decorative surfaces 4D and 4D side upper surface of the spring member 4 by a substantially U-shaped clip 16 so as not to expand. If the sealing member 1 assembled in this way is inserted into the gap 10 between the structures 11 and 12 and the clip 16 is removed, the spring member 4 expands as shown in FIG. 4B and the sealing material 6 is spread over the structures 11 and 12. Press against the side wall and seal.

The sealing member having this structure prevents the inner surface of the spring member from being visible on the decorative surfaces 4D and 4D after fitting to the joint, and the designability is good when viewed from the front. In particular, the joint portion can be made inconspicuous by making the decorative surface the same color as the building after the sealing.

FIGS. 5A to 5C show still another structure in which the inside of the spring member 4 cannot be seen after the insertion as in the case of FIG. In this example, as shown in FIG. 5A, the opening of the spring member 4 having a cross-section 8 shape is temporarily fixed with an instant adhesive 18 for temporary fixing. As shown in FIG. 5C, the sealing member 1 having the fixed sealing material 6 adhered to the repulsive surface 4C of the spring member 4 is inserted between the structures 11 and 12, and the instant adhesive 18 is cut with a cutter or the like. As described above, the spring member 4 is expanded and the sealing material is pressed against the side surface for sealing.

Further, a cosmetic gasket 17 as shown in FIG. 5B is prepared. Decorative plate 1 of this makeup gasket 17
7a has a width substantially equal to the width of the gap 10 and extends in the vertical joint direction. When viewed in cross section, a cylindrical click portion 17c having a circular cross section is formed at the tip of a leg portion 17b hanging from the center of the decorative plate 17a. There is.

Such a cosmetic gasket 17 is inserted from the opening side of the spring member 4 as shown in FIG. 5C, and the cylindrical click portion 17c is locked by the protrusions 19 and 19 formed on the spring member 4, The makeup gasket 17 closes the opening of the spring member 4 and functions as a decorative plate.

As shown in FIG. 4, when the spring member 4 also serves as the decorative surface 4D, the sealing surface of the sealing material 6 becomes shallow, but when the cosmetic gasket 17 is separately provided as in this example, the sealing surface of the sealing material becomes deep. In addition, the sealing effect, that is, the airtightness and the watertightness can be significantly improved.

Further, another configuration of this example will be described with reference to FIGS. 6A to 6C. As shown in FIG. 6C, the spring member 4 made of roll-formed semi-circular spring steel is used as a core material, and the spring member 4 is covered with soft vinyl chloride by two-color extrusion molding of hard and soft vinyl chloride, and a cosmetic gasket is also provided. 17
The decorative plate functioning as is made of soft vinyl chloride 21 having an inverted concave cross section, and the legs hanging from the substantially central lower end of the decorative plate are made of hard vinyl chloride 20.
Reference numeral 23 is a recess forming a temporary fixing portion, and the tip of the spring member 4 can be locked. Although the spring member 4 is covered with the soft vinyl chloride 22, the sealing member 1 is integrally formed by laminating the sealing material 6 on the repulsion surface side by utilizing the residual heat of vinyl chloride during the two-color extrusion molding. .

Next, the tip of the spring member 4 covered with the soft vinyl chloride 22 is inserted into the recess 23 in the lower part of the decorative plate, as shown in FIG.
As in A, the spring member 4 is temporarily fixed in a bent state. The sealing member 1 is inserted into the gap 10 between the members (structures) 11 and 12.

At this time, the tip of the decorative plate made of soft vinyl chloride 21 comes into contact with the members (structures) 11 and 12, so that the recess 23 expands as shown in FIG. 6B and the spring member 4 temporarily fixed. Is released and the sealing member 1 between the structures
Will be locked.

In the structure shown in FIG. 6, the cosmetic gasket, the spring member and the sealing material can be integrally formed, and the sealing member 1 can be continuously produced. Further, since the spring member is temporarily fixed to the concave portion, the spring member can be easily attached and detached, and the spring member is covered with vinyl chloride, so that it is possible to provide a safe seal member which is less likely to be injured.

[0037]

As described above, according to the sealing member and the construction method thereof of the present invention, since the sealing member is integrated with the spring member and the spring member is compressed and temporarily fixed, it can be easily inserted into the gap between the structures. is there. In addition, since the temporary fixing can be easily performed with a cutter, a tacho thread, etc., a professional is unnecessary.
Further, since a spring member having a high spring constant can be used, the compressibility of the sealing material integrated with the spring member is increased, and the watertightness / airtightness is improved. In addition, even if the sealing material relaxes the stress due to aging and the pressing force decreases, the pressing force is maintained due to the repulsive force of the spring member, so stable water-tightness for a long time
Airtight performance can be maintained.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a manufacturing process, a construction process, and a perspective view of a sealing member of the present invention.

FIG. 2 is another configuration diagram illustrating a manufacturing process and a construction process of the sealing member of the present invention.

FIG. 3 is still another configuration diagram illustrating the configuration and the construction method of the sealing member of the present invention.

FIG. 4 is still another configuration diagram for explaining the configuration and construction method of the sealing member of the present invention.

FIG. 5 is still another configuration diagram illustrating the configuration and the construction method of the sealing member of the present invention.

FIG. 6 is still another configuration diagram illustrating the configuration and the construction method of the sealing member of the present invention.

FIG. 7 is a configuration diagram of a conventional sealing member.

[Explanation of symbols]

 1 Sealing member 4 Spring member 5 Adhesive 6 Sealing material 10 Gap 11, 12 Structure (member)

Claims (4)

[Claims] 1. A sealing member comprising: a spring member temporarily fixed to a predetermined shape so that a repulsive force is applied; and a sealing material disposed on a repulsive surface of the spring member. 2. A step of inserting a sealing member, in which a sealing material is disposed on a repulsive surface of a spring member temporarily fixed to a predetermined shape so that a repulsive force is applied, into a gap for performing sealing, and the repulsive force is By the step of releasing the provisionally fixed portion of the applied spring member, the provisional fixing of the spring member is opened in the gap for performing the sealing work, and the sealing material arranged on the repulsion surface is pressure-bonded to the member in the gap. A method of constructing a sealing member, which comprises performing sealing by means of: 3. The seal member according to claim 1, wherein the spring member is one of metal, synthetic resin, natural or synthetic rubber, or ceramics. 4. The sealing member according to claim 1, wherein the sealing material is one of synthetic rubber, natural rubber, vinyl chloride, olefin, urethane elastomer or foam.