JPH1193282A - Sealing device between building members - Google Patents

Abstract

PROBLEM TO BE SOLVED: To satably seal the inside of a recessed part with a sealant even when a shape of the recessed part is greatly changed by an earthquake, etc. SOLUTION: A groove-like recessed part 6 having an opening part in the center of a bottom part is formed between wall panels 4, 5. After a sealant 1 is inserted in the recessed part 6 and the opening part 7 is tightly closed, a primary sealant 8 is arranged on the outside of the sealant 1. The sealant 1 consists of a non-vulcanized butyl rubber base body 2 which is adhesive and rich in flexibility and a cover member 3 to cover an outer end face and each side of the outer end of the base body 2. The base body 2 comprises a pair of fork-shaped attachment parts 2a, 2b, and the inner surface of the fork-shaped parts are covered with a protective material 9 for preventing adhesion. When the sealant 1 is inserted in the recessed part 6, and pressed from the outer end face side, the base body 2 is deformed and the outer side and inner end face of the respective attachment parts 2a, 2b are closely attached and fixed to the inner surface of the recessed part 6. Even when the shape of the recessed part 6 is changed, the respective attachment parts 2a, 2b are independently moved in a limited range, the sealing performance is not damaged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing device between building members for sealing a recess formed between wall panels of a building or between an opening frame and a wall panel, and more particularly to an adjacent building member. The present invention relates to a sealing device between building members capable of obtaining a stable sealing performance even when a large relative movement occurs due to an earthquake or the like.

[0002]

2. Description of the Related Art Generally, when a wall of a building is constructed using a concrete slab such as an ALC slab, a recess is formed between adjacent wall panels.
Since an opening is formed near the bottom such as the bottom surface or the lower end of the side surface, it is necessary to seal the opening and completely seal the inside of the recess.

Therefore, conventionally, a method has been adopted in which a sealing material such as a caulking material is filled in the concave portion and the inside of the concave portion is sealed with the sealing material.

[0004]

In the case of the above-mentioned conventional sealing method, a sufficient water stopping effect can be obtained as long as the sealing material is not damaged, but if the sealing material is damaged,
There is a problem that the waterproofness is completely impaired. Further, when the opening formed in the concave portion is large, there is a possibility that a sufficient water stopping effect cannot be obtained only with the sealing material. Therefore, recently, prior to filling with the sealing material, a method has been adopted in which the opening in the recess is sealed with a sealing material so that even if the sealing material is damaged, a sufficient water stopping effect can be obtained. The present inventors have previously proposed this type of sealing device in Japanese Patent Application No. 7-174188.

In the sealing device proposed by the present inventors, since the inside of the concave portion can be sealed easily and reliably, the sealing device is used not only as a secondary seal but also as a primary seal by omitting a sealing material. Etc.
Although it has many advantages, if the neighboring building members move relatively due to an earthquake or the like and the shape of the recess changes significantly, this change cannot be absorbed only by the elongation of the sealing material, However, there is a problem that the sealing performance is lost or deteriorated due to peeling off from the inner surface of the concave portion or cutting of the sealing material.

The present invention has been made in view of such a situation, and even if the neighboring building members relatively move due to an earthquake or the like and the shape of the concave portion changes significantly, this deformation is absorbed by the sealing material. It is an object of the present invention to provide a sealing device between building members capable of obtaining stable sealing performance.

[0007] Another object of the present invention is to provide a sealing device between building members, which can further stabilize the state of close contact with the inner surface of the concave portion of the base.

[0008] Another object of the present invention is to provide a method in which each substrate is pressed only from the outer surface side even when a gap is partially formed between the outer surface of each bonding portion and the inner surface of the concave portion. It is an object of the present invention to provide a sealing device between building members capable of securely fixing an outer surface of a portion to an inner surface of a recess.

Another object of the present invention is to provide a sealing device between building members which can completely seal the inside of a concave portion by applying to a concave portion having an opening in a bottom surface.

Another object of the present invention is to provide a sealing device between building members which can completely seal the inside of a concave portion by applying to a concave portion having an opening at a lower end portion of a side surface. .

Another object of the present invention is to provide a method of inserting a sealing material into a concave portion, wherein the outer surface of one of the adhesive portions adheres to the side surface of the concave portion, and the sealing material is completely inserted to the bottom of the concave portion. It is an object of the present invention to provide a sealing device between building members, which can prevent a failure such as a failure.

Another object of the present invention is to provide a seal between building members capable of minimizing the amount of cover material and improving the followability of the seal material when the shape of the recess changes. In providing the device.

Another object of the present invention is to provide a sealing device between building members which can further improve the followability of the sealing material when the shape of the concave portion changes.

Another object of the present invention is to provide a sealing device between building members capable of increasing the elongation of the sealing material and obtaining sufficient followability even when the shape of the concave portion is largely changed. .

Another object of the present invention is to prevent the adhesion between the primary seal material and the secondary seal material when the seal material is used as a secondary seal material, thereby ensuring a two-sided bonding structure of the primary seal material. To provide a sealing device between building members.

Still another object of the present invention is to stabilize the sealing performance by preventing deterioration of the substrate due to rainwater, sunlight or the like when the inside of the concave portion is sealed only with the sealing material without the sealing material. It is an object of the present invention to provide a sealing device between building members.

[0017]

According to the present invention, a sealing material is inserted and arranged in a recess formed between adjacent building members, and the sealing material is used to position the recess near the bottom of the recess. In a sealing device between building members for sealing between building members by sealing formed openings, the sealing material is constituted by a base and a cover material covering at least an outer end surface of the base, and the base is formed of a cover material. It is characterized by comprising a pair of sticking portions whose side ends are connected to form a forked cross section, and an adhesive layer provided on at least the outer surface of each sticking portion.

By the way, since each adhesive portion has an adhesive layer on at least the outer surface, when the sealing material is inserted into the concave portion and pressed from the outer surface side, each adhesive portion is deformed flat, Each adhesive layer is adhered and fixed to the side surface of the recess. For this reason, the inside of the concave portion can be completely sealed by the seal material.

In the sealed state, if the shape of the concave portion changes due to an earthquake or the like, the sealing material is also deformed accompanying this change. The deformation is absorbed by the expansion and contraction of this part. When the deformation is further increased, the adhesive layer on the outer surface of each adhesive portion will peel off from the inner surface of the concave portion, but the portions on the concave bottom surface side of the pair of adhesive portions are completely separated from each other, Peeling from the inner surface of the concave portion always occurs at the end on the cover material side, and the portion of each adhesive layer on the lower surface side of the concave portion is maintained in a state of being tightly fixed to the inner surface of the concave portion. For this reason, even when the shape of the concave portion changes significantly, stable sealing performance can be obtained.

The present invention is also characterized in that the adhesive layer is formed of non-vulcanized butyl rubber. By the way, the non-vulcanized butyl rubber, when the concave portion is made of concrete, its carboxyl group reacts with the CaO component in the cement to form an ionic bond. This makes it possible to stabilize the state of close contact with the inner surface of the concave portion of the base rather than bonding.

The present invention is also characterized in that the base is formed of non-vulcanized butyl rubber, and the inner surfaces of the two forked portions of both sticking portions are covered with a protective material for preventing adhesion. By the way, when the base is made of non-vulcanized butyl rubber, there is no or extremely weak elastic restoring force after the base is pressed and deformed. The outer surface of the sticking part is securely fixed to the inner surface of the recess. For this reason, even if a gap is partially formed between the outer surface of each sticking portion and the inner surface of the concave portion, the gap is completely filled, and a stable close-fixed state can be obtained.

Further, since the inner end face of each of the sticking portions is tightly fixed to the bottom surface of the concave portion, the area for tightly fixing the contact portion is increased, and by applying the adhesive portion to the concave portion having the opening at the bottom surface,
The inside of the concave portion can be more completely sealed.

According to the present invention, the base is formed of non-vulcanized butyl rubber, and the inner surface of the forked portion of both the bonded portions and the inner end surface of one of the bonded portions are covered with a protective material for preventing adhesion. It is characterized by the following. By the way, when the present invention is applied to a concave portion having an opening at the lower end portion of the side surface, the adhesive portion whose inner end surface is covered with a protective material is located on the opening side, so that the adhesive portion is formed on the concave bottom surface. Is adhered to only one side surface of the concave portion. Therefore, by applying the present invention to a concave portion having such a structure, it is possible to completely seal the inside of the concave portion without causing a problem when the concave portion is deformed.

According to the present invention, the outer surface of at least one of the adhering portions is formed as an inclined surface in which at least the inner end is inclined toward the center of the recess toward the bottom of the recess. It is characterized by. Thus, when the sealing material is inserted into the concave portion, a problem that the outer surface of one of the sticking portions adheres to the side surface of the concave portion and the sealing material cannot be completely inserted to the bottom of the concave portion is prevented. It is possible to do.

The present invention is also characterized in that the outer end face of the base and the outer end face of one of the sticking portions are covered with a cover material. And by this, the portion of the outer end outer surface of the sticking portion covered with the cover material acts as a margin when the sealing material elongates, making the amount of material of the cover material as small as possible, In addition, it is possible to improve the followability of the sealing material when the shape of the recess changes.

The present invention is also characterized in that the outer end surface of the base and the outer end outer surfaces of both sticking portions are respectively covered with a cover material. Thus, both the outer end portions of the outer ends of the two adhering portions covered with the cover material act as a margin when the seal material is stretched, and the seal material when the shape of the concave portion changes is formed. The followability can be further improved.

[0027] The present invention is also characterized in that the outer end surface of the base is formed as a circular arc protruding outward. Thus, the arcuate surface portion of the outer end of the base acts as a margin when the seal material is stretched, and the shape of the concave portion changes significantly without covering the outer end surface of the sticking portion with the cover material. However, sufficient followability can be obtained.

The present invention is also characterized in that the cover member has a function of preventing adhesion to a primary seal member disposed on the outer surface side of the seal member. Thus, when the sealing material is used as a secondary sealing material, it is possible to prevent adhesion between the primary sealing material and the secondary sealing material, and to secure a two-sided bonding structure of the primary sealing material.

The present invention is further characterized in that the cover material is provided with weather resistance for preventing deterioration of the base.
Accordingly, when the inside of the concave portion is sealed only with the sealing material without using the sealing material, it is possible to prevent deterioration of the base body due to rainwater, sunlight, or the like, and to stabilize the sealing performance.

[0030]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIGS. 1A to 1D and FIG. 2 show a sealing device between building members according to a first embodiment of the present invention. This sealing device is composed of a base 2 and an outer end face side of the base 2. And a cover member 3 that covers the first and second wall panels 4 and 5 made of an ALC plate or the like.
It is inserted and arranged in a groove-shaped recess 6 formed between the recesses 6.
The opening 7 formed at the center of the bottom of the housing is hermetically closed to seal the inside of the recess 6. A primary sealing material 8 such as a caulking material is provided on the outer surface side of the sealing material 1.

As shown in FIG. 2, the base 2 of the sealing material 1 is made of, for example, non-vulcanized butyl rubber having adhesiveness and flexibility and having no or extremely weak elastic return force after deformation. The outer end surface and the outer end portions of the both side surfaces are covered with a cover material in a more gate-shaped cross section.

That is, as shown in FIG. 2, the cover member 3 is composed of a main body 3a covering the outer end surface of the base 2 and bent portions 3b covering the outer end portions of both sides of the base 2, respectively. As a whole, it has a cross-sectional gate shape, and this cover material 3
The upper surface is formed of paper coated with silicon, and the lower surface of the paper is superimposed on the upper surface and both side surfaces of the substrate 2 so that the substrate 2 is fixed to the substrate 2 by the adhesive force of the substrate 2. The cover member 3 can completely prevent the adhesion between the seal member 1 and the primary seal member 8, and
Sufficient waterproofness and weather resistance are obtained.

On the other hand, as shown in FIG.
A pair of sticking portions 2a and 2b having a forked cross section connected to ends of the cover member 3 are provided, and both sticking portions 2a and 2b are provided.
The inner surface of the bifurcated portion having a square groove shape is covered with a protection 9 for preventing the adhesive portions 2a and 2b from adhering to each other. As a result, a large degree of freedom is secured between the sticking portions 2a and 2b, the base 2 is prevented from coming into contact with air, and the base 2 can be prevented from being deteriorated even after long use. ing.

As shown in FIG. 2, the outer surface of each of the sticking portions 2a and 2b is angled from the end of the bent portion 3b of the cover member 3 toward the center of the recess 6 toward the bottom of the recess 6. The sealing material 1 can be completely inserted to the bottom of the concave portion 6 by the inclined surface inclined by θ.

That is, when the outer surface of each of the sticking portions 2 a and 2 b is a vertical surface perpendicular to the main body 3 a of the cover member 3, when the sealing material 1 is inserted into the concave portion 6, ,
If the insertion position is slightly shifted left and right in FIG. 1A, one of the sticking portions 2a and 2b adheres to the side surface of the concave portion 6, and the sealing material 1 cannot be completely inserted to the bottom of the concave portion 6. Although there is a possibility that the outer surfaces of the sticking portions 2a and 2b are inclined surfaces, as shown in FIG.
A gap G is formed between the outer surface of each of the sticking portions 2a and 2b and each inner surface of the recess 6, so that the sealing material 1 can be completely inserted to the bottom of the recess 6.

As shown in FIG. 3, the sealing material 1 is wound on the outer surface of the core material 10 in the form of an adhesive tape with the cover material outside. Is also used as a release paper for the adhesive surface of the base 2. The seal material 1 is opened from the outer end side and cut to a predetermined length for use. The both sides of the sealing material 1 wound in the form of an adhesive tape are covered with a protective paper 11 in the form of a donut disk.

Next, the operation of the present embodiment will be described. At the time of sealing the concave portion 6, first, as shown in FIG. 3, the sealing material 1 wound around the outer surface of the core material 10 is sequentially opened from the outer end side, and the tip is as shown in FIG. In the recess 6. Then, the sealing material 1 is inserted into the concave portion 6 by pressing with a finger or the like, and the inner end surfaces of the attaching portions 2a and 2b are attached to the bottom surface of the concave portion 6 as shown in FIG. Then, the opening 7 is stuck on both sides of the opening 7 on the bottom surface of the concave portion 6, and the opening 7 is completely sealed by the sticking portions 2 a and 2 b.

At this time, the outer surfaces of the sticking portions 2a and 2b are located at the center of the concave portion 6 from the end of the bent portion 3b of the cover member 3 toward the bottom of the concave portion 6 as shown in FIG. The inclined surface is inclined at the angle θ. For this reason, as shown in FIG. 1B, a gap G is formed between the outer surface of each of the sticking portions 2a and 2b and each of the inner surfaces of the concave portion 6, and the outer surface of each of the sticking portions 2a and 2b The sealing material 1 can be completely inserted to the bottom of the concave portion 6 without being adhered to the inner surface of the concave portion 6, so that the inner end surfaces of the attaching portions 2 a and 2 b can be securely adhered to the bottom surface of the concave portion 6.

When the sealing material 1 is inserted into the concave portion 6 and the inner end surfaces of the sticking portions 2a and 2b are adhered to the bottom surface of the concave portion 6 as described above, the sealing material 1 is put on the outer surface with a finger or the like. From the side toward the bottom of the recess 6. Here, since the base 2 is made of non-vulcanized butyl rubber, and since the non-vulcanized butyl rubber has no or extremely weak elastic restoring force after being deformed by pressing, when the sealing material 1 is pressed from the outer surface side, FIG. ), Each of the sticking portions 2a and 2b is deformed flat, and
a, the outer surface of the 2b is reliably closely fixed to the recess 6 the inner surface over a range of dimensions L _1, this state is maintained. In addition,
Range of dimensions L ₂ corresponding to the bent portion 3b of the cover member 3 is never but in close contact with the recess 6 the inner surface is adhered, this portion, deformation occurs in the sealing member 1 as described below It functions as a spare part when it comes to.

In this manner, the sealing material 1 is inserted and arranged in the concave portion 6, and the outer surfaces of the sticking portions 2 a, 2 b are tightly fixed to the inner surface of the concave portion 6 over the range of the dimension L ₁ , and the opening portion is formed. When the sealing member 7 is completely sealed, the primary sealing member 8 is disposed on the outer surface side of the sealing member 1 as shown in FIG. At this time, since the cover member 3 has a function of preventing adhesion to the primary seal member 8, the two-sided adhesive structure of the primary seal member 8 (the primary seal member 8 is adhered only to the inner surfaces on both sides of the concave portion 6). , Structure that is not bonded to the sealing material 1)
, The followability of the primary seal material 8 when the concave portion 6 is deformed is improved, and the sealing performance of the primary seal material 8 can be improved.

In this sealing state, if the shape of the concave portion 6 changes due to an earthquake or the like, the primary seal material 8 and the seal material 1 are also deformed as the concave portion 6 is deformed. 1, there is less room for deformation, and even a relatively small deformation will damage it, after which only the sealing material 1 will be sealed.

When the sealing material 1 is deformed, the deformation first occurs at the connecting portion between the outer ends of the pair of sticking portions 2a and 2b, and the deformation is absorbed by the expansion and contraction of this portion. Since this time, part of the dimension L ₂ corresponding to the bent portion 3b of the cover member 3 and are not bonded to the inner surface of the recess 6, both adhesive portion 2a, 2
When the elongation of the connecting portion of b exceeds a certain value, each bent portion 3b
Becomes in a state of falling inside the concave portion 6, and the deformation of the concave portion 6 is absorbed.

If the deformation of the concave portion 6 is further increased and cannot be absorbed only by the deformation of the portion corresponding to each bent portion 3b, the portion tightly fixed to the inner surface of the concave portion 6 on the outer surface of each of the sticking portions 2a and 2b. Is peeled off from the inner surface of the recess 6.

The portions of the pair of sticking portions 2a and 2b on the bottom surface side of the concave portion 6 are completely separated from each other.
The peeling of the adhesive portions 2a and 2b from the inner surface of the concave portion 6 always occurs from the end on the cover material 3 side, and even if the deformation of the concave portion 6 becomes extremely large, the adhesive portions 2a and 2b are on the concave 6 bottom side. The end of
The state of being tightly fixed to the inner surface of the concave portion 6 is maintained, whereby stable sealing performance can be obtained.

Even if the adjacent wall panels 4 and 5 relatively move due to an earthquake or the like and the shape of the concave portion 6 is greatly changed, this deformation is absorbed by the sealing material 1 and a stable sealing is achieved. Performance can be obtained.

FIG. 4 shows a second embodiment of the present invention, in which the shape of the forked portion of the pair of sticking portions 2a and 2b is V-shaped.
The forked inner surface forming the V-groove is
The two sticking portions 2a and 2b are covered with a protective material 9 for preventing mutual adhesion. In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

However, the same effect as in the first embodiment can be obtained even if the forked portion of the pair of sticking portions 2a and 2b is formed in a V-groove shape.

FIG. 5 shows a third embodiment of the present invention, in which a cover member 23 is used in place of the cover member 3 in the first embodiment.

That is, as shown in FIG. 5, the cover member 23 includes a main body 23a that covers the end surface of the base 2 and a right-angled bent part of one end of the main body 23a. And a bent portion 23b that covers the outer end of the cover member 3 has an inverted L-shaped cross section as a whole, and its material configuration is the same as that of the cover member 3 in the first embodiment. Note that the configuration is the same as that of the first embodiment, and the operation is also the same.

When the cover member 23 is used, since the bent portion 23b is located only on the one sticking portion 2b side, the margin for the deformation of the sealing material 1 is as described in the first embodiment. Although it is slightly lower than in the case of
The area of the contact a fixed to the inner surface of the concave portion 6 is increased, and the sealing performance under normal conditions can be improved.

FIG. 6 shows a fourth embodiment of the present invention, in which a cover member 33 is used in place of the cover member 3 in the first embodiment.

That is, as shown in FIG. 6, the cover member 33 includes a main body 33a that covers the outer end surface of the base 2, and protrusions 33b that protrude outward from the base 2 from both side ends of the main body 33a. The material configuration is the same as that of the cover member 3 in the first embodiment. When the sealing member 1 is inserted into the concave portion 6, the two projecting portions 33 b Are curved to the outer end side along the inner surface of. In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

When the cover member 33 is used, however, the entire outer surfaces of the sticking portions 2a and 2b are completely recessed.
Since it is adhered and fixed to the inner surface, the margin for the deformation of the sealing material 1 is slightly lower than in the case of the first embodiment. Each of the areas fixedly adhered to the inner surface of the concave portion 6 increases, and the sealing performance in a normal state can be improved.

FIG. 7 shows a fifth embodiment of the present invention, wherein the outer surface of one sticking portion 2a is a vertical surface, and only the outer surface of the other sticking portion 2b is an inclined surface having an angle θ. It is intended to be. In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

Since the outer surfaces of the pair of adhesive portions 2a are vertical surfaces, the outer surfaces of both the adhesive portions 2a and 2b are both inclined surfaces in the first embodiment. Compared with the material 1, the workability is slightly deteriorated,
Compared to the case where the outer surfaces of a and 2b are both vertical surfaces,
The outer surfaces of the sticking portions 2a and 2b adhere to the inner surface of the concave portion 6,
It is possible to reduce a situation in which the sealing material 1 cannot be completely inserted to the bottom of the recess 6.

FIG. 8 shows a sixth embodiment of the present invention, in which the outer end surface of the base 2 is formed into an outwardly convex arc surface, and the main body 3a of the cover member 3 is also formed in this arc surface. The shape is an arc following the shape of a circle. In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

By forming the outer end surface of the base 2 and the main body 3a of the cover member 3 to have an arcuate surface convex outward, the arc surface portion of the outer end of the base 2 is elongated in the sealing material 1. In this case, the sealing performance of the sealing material 1 can be stabilized even with a larger deformation.

FIG. 9 shows a seventh embodiment of the present invention. Instead of the base 2 in the first embodiment,
In this case, a base 42 is used.

That is, as shown in FIG. 9, the base 42 is provided with a pair of sticking portions 42a and 42b, each of which has an end on the side of the cover member 3 connected and has a forked cross section. The forked portion between the portions 42a and 42b is formed in a square groove shape, and the outer end surfaces of the sticking portions 42a and 42b are inclined surfaces at an angle θ.

The base 42 is made of a synthetic resin material similar to non-vulcanized butyl rubber, which is flexible and has little or no elastic restoring force after deformation. The outer and inner end faces of the bases 42a and 42b are formed on the base 42. As shown in FIG. 9, for example, adhesive layers 50a and 50b made of, for example, non-vulcanized butyl rubber are provided. The cover member 3 is fixed to the base 42 via the adhesive layer 51. In other respects, the configuration is the same as that of the first embodiment.
The operation is the same.

Thus, the adhesive layers 50a and 50b
Since the adhesiveness is given to the outer side surface and the inner end surface of each of the sticking portions 42a and 42b, substantially the same effects as in the first embodiment can be obtained.

Each of the adhesive layers 50a and 50b does not necessarily need to be made of non-vulcanized butyl rubber, and each of the adhesive layers 50a and 50b is provided only on the outer surface of each of the sticking portions 42a and 42b. If so, the expected effect can be expected.

FIGS. 10 and 11 (a) to 11 (d) show an eighth embodiment of the present invention. The eighth embodiment is applied to a concave portion 66 in place of the sealing material 1 in the first embodiment. In this case, a sealing material 61 is used.

That is, as shown in FIGS. 10 and 11A to 11D, the sealing member 61 includes the base 2 and the cover member 3 covering the outer end side of the base 2. The sealing material 61 is inserted and arranged in a groove-shaped recess 66 formed between the pair of wall panels 4 and 5, and seals an opening 67 formed at the lower end of one side surface of the recess 66 to seal the inside of the recess 66. It is designed to be sealed. And this sealing material 61
A primary seal member 8 is provided on the outer surface side of the first seal member.

As shown in FIG. 10, the base 2 has a pair of sticking portions 2a and 2b.
The inner surface of the bifurcated portion and the inner end surface of one of the sticking portions 2a forming a square groove shape are covered with a protective material 69 having an integral structure.
Then, by the covering with the protective material 69, both the sticking portions 2 are formed.
a and 2b are prevented from adhering to each other, and
Adhesion and fixation of the inner end surface to the bottom surface of the concave portion 66 are prevented, so that the adhering portion 2a can be attached and fixed only to one wall panel 4 side. In other respects, the configuration is the same as that of the first embodiment.

Next, the operation of the present embodiment will be described. When sealing the concave portion 66, first, as shown in FIG. 11A, the tip of the seal material 61 is positioned on the concave portion 66, and as shown in FIG. 61 is inserted into the concave portion 66, and the inner end surfaces of the sticking portions 2 a and 2 b are pressed against the bottom surface of the concave portion 66. By this pressure contact, the inner end face of one sticking portion 2b is stuck and fixed to the bottom surface of the concave portion 66, while the inner end face of the other sticking portion 2a is
9, it is only in contact with the bottom surface of the recess 66.

In this way, the sealing material 61 is
When the seal member 61 is inserted and placed inside, the sealing material 61 is further pressed from the outer surface side toward the bottom of the concave portion 66 by a finger or the like. Then, as shown in FIG. 11C, each of the sticking portions 2a and 2b
Are deformed flat, and the outer surfaces of the stickers 2a and 2b
Is adhered and fixed to the inner surface of the. And thereby, the opening 6
7 is completely sealed. Then, after that, as shown in FIG. 11D, the primary sealing material 8 is disposed on the outer surface side of the sealing material 61 to complete the sealing work.

Thus, one sticking portion 2a is attached to the wall panel 4
And the other sticking portion 2b is attached to the wall panel 5 only.
Since it is adhered and fixed only to the side, the same effect as in the case where the inside of the concave portion 6 is sealed with the sealing material 1 is obtained.

In each of the above embodiments, the case where the primary sealing material 8 is provided on the outer surface side of the sealing materials 1 and 61 and the sealing materials 1 and 61 are used as the secondary sealing material has been described. If the members 3, 23, 33 have sufficient weather resistance, the same can be applied to the case where the primary sealing material 8 is omitted and the inside of the concave portions 6, 66 is sealed only with the sealing materials 1, 61. The effect of can be expected.

[0070]

As described above, according to the present invention, the seal member is constituted by the base member and the cover member covering at least the outer end surface of the base member. Since it is configured with a pair of forked sticking portions and an adhesive layer provided on at least the outer surface of each sticking portion, the inside of the concave portion can be completely sealed with a sealing material. Even if the shape of the concave portion changes significantly, stable sealing performance can be obtained.

In the present invention, since the adhesive layer is formed of non-vulcanized butyl rubber, the carboxyl group is reduced to CaO in the cement when the recess is made of concrete.
It reacts with the components to form an ionic bond, so that a more stable sealing performance than simple adhesion can be obtained, and this performance can be maintained.

In the present invention, since the base is formed of non-vulcanized butyl rubber and the inner surfaces of the two forked portions of both sticking portions are covered with a protective material for preventing adhesion, the outer portions of each sticking portion are formed. Even when the side surface is securely fixed to the inner surface of the concave portion and a gap is partially formed between the outer surface of each sticking portion and the inner surface of the concave portion, the gap is completely filled and a stable close-fixed state is achieved. Can be obtained. In addition, since the inner end surface of each sticking portion is tightly fixed to the bottom surface of the concave portion, the area for tightly fixing is increased, and by applying to the concave portion having an opening at the bottom surface, the inside of the concave portion is more completely covered. Can be sealed.

In the present invention, the base is made of non-vulcanized butyl rubber, and the inner surfaces of the two forked portions and the inner end surface of one of the bonded portions are covered with a protective material for preventing adhesion. Therefore, by applying the present invention to the concave portion having the opening at the lower end portion of the side surface, the concave portion can be completely sealed without causing any trouble when the concave portion is deformed.

In the present invention, the outer surface of at least one of the adhering portions is formed such that at least the inner end has an inclined surface inclined toward the center of the recess toward the bottom of the recess. Therefore, when inserting the sealing material into the concave portion, it is possible to prevent a problem that the outer surface of one of the sticking portions adheres to the inner surface of the concave portion and the sealing material cannot be completely inserted to the bottom of the concave portion. be able to.

According to the present invention, since the outer end of the base and the outer end surface of one of the adhering portions are covered with the cover material, the outer end portion of the adhering portion covered with the cover is covered with the cover material. ,
It acts as a margin when elongation occurs in the sealing material, the amount of material of the cover material can be reduced as much as possible, and the followability of the sealing material when the shape of the concave portion changes can be improved.

According to the present invention, since the outer end surface of the base and the outer end outer surfaces of both the adhering portions are respectively covered with the cover material, the outer end outer surfaces of both the adhering portions covered with the cover material are provided. Both portions function as a margin when the sealing material is elongated, and the followability of the sealing material when the shape of the concave portion changes can be further improved.

According to the present invention, since the outer end surface of the base is formed as an arc surface that is convex toward the outside, the arc surface portion at the outer end of the base is provided with a margin when the sealing material is elongated. And sufficient followability can be obtained even if the shape of the concave portion is largely changed without covering the outer surface of the outer end of the sticking portion with the cover material.

According to the present invention, since the cover member has a function of preventing adhesion to the primary seal member disposed on the outer surface side of the seal member, the cover member can be used as a secondary seal member. In addition, adhesion between the primary seal material and the secondary seal material can be prevented, and a two-sided bonding structure of the primary seal material can be secured.

The present invention further provides the cover material with weather resistance for preventing the deterioration of the base, so that when the sealing material is omitted and the inside of the concave portion is sealed only with the sealing material, rainwater, light, etc. , The deterioration of the base material can be prevented and the sealing performance can be stabilized.

[Brief description of the drawings]

FIGS. 1A to 1D are explanatory diagrams sequentially showing a method of sealing between building members using a sealing device according to a first embodiment of the present invention in accordance with procedures.

FIG. 2 is a detailed view of the sealing material of FIG. 1;

FIG. 3 is a cross-sectional view showing a state in which a sealing material is wound into an adhesive tape shape.

FIG. 4 is a diagram corresponding to FIG. 2, showing a second embodiment of the present invention.

FIG. 5 is a diagram corresponding to FIG. 2, showing a third embodiment of the present invention.

FIG. 6 is a diagram corresponding to FIG. 2, showing a fourth embodiment of the present invention.

FIG. 7 is a diagram corresponding to FIG. 2, showing a fifth embodiment of the present invention.

FIG. 8 is a diagram corresponding to FIG. 2, showing a sixth embodiment of the present invention.

FIG. 9 is a diagram corresponding to FIG. 2, showing a seventh embodiment of the present invention.

FIG. 10 is a diagram corresponding to FIG. 2, showing an eighth embodiment of the present invention.

11 (a) to (d) are explanatory diagrams sequentially showing a method of sealing between building members using the sealing material of FIG. 10 according to a procedure.

[Explanation of symbols]

 1,61 Sealing material 2,42 Base 2a, 2b, 42a, 42b Sticking part 3,23,33 Covering material 3a, 23a, 33a Body part 3b, 23b Bending part 4,5 Wall panel 6,66 Concave part 7, 67 Opening 8 Primary seal material 9, 69 Protective material 33b Projection 50a, 50b Adhesive layer θ Angle G Gap

Claims (10)

[Claims] 1. A sealing material is inserted and arranged in a concave portion formed between adjacent building members, and an opening formed near a bottom of the concave portion is sealed by the sealing material to seal between building members. In the sealing device between building members, the sealing material includes a base and a cover material that covers at least an outer end surface of the base, and the base has a pair of forked cross-sectionally connected ends of the cover material. And a sticking layer provided on at least the outer surface of each of the sticking portions. 2. The sealing device between building members according to claim 1, wherein the adhesive layer is formed of non-vulcanized butyl rubber. 3. The substrate is formed of a non-vulcanized butyl rubber,
The sealing device between building members according to claim 1, wherein the inner surfaces of the two forked portions of both the adhering portions are covered with a protective material for preventing adhesion. 4. The substrate is formed of a non-vulcanized butyl rubber,
The inner surface of the forked part of both sticking parts and the inner end face of one sticking part are
2. The sealing device between building members according to claim 1, wherein the sealing device is covered with a protective material for preventing adhesion. 5. An outer surface of at least one of the adhering portions is characterized in that at least an end on an inner end side forms an inclined surface inclined toward a center of the recess toward a bottom of the recess. The sealing device between building members according to claim 1, 2, 3, or 4. 6. The building member according to claim 1, wherein the cover member covers an outer end surface of the base and an outer end outer surface of one of the sticking portions. Sealing device between. 7. The building member according to claim 1, wherein the cover member covers an outer end surface of the base and an outer end surface of both of the adhering portions. Sealing device. 8. The method according to claim 1, wherein the outer end surface of the base has a circular arc surface protruding outward.
The sealing device between building members according to 4, 5, 6, or 7. 9. The cover material has a function of preventing adhesion to a primary seal material disposed on an outer surface side of the seal material. 9. The sealing device between building members according to 6, 7, or 8. 10. A cover material having weather resistance for preventing deterioration of a base.
9. The sealing device between building members according to 5, 6, 7 or 8.