JP3474633B2 - Joint structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure, and more particularly to a joint structure formed at a joint between a sash frame attached to an opening of an outer wall surface and an exterior material around the sash frame.

[0002]

2. Description of the Related Art Conventionally, as joint structures of exterior materials, there are one in which a joint portion between exterior materials is sealed by a wet joint material and another in which a joint portion between exterior materials is sealed by a dry joint material.

A joint structure using a wet joint material has a large number of steps of joint construction work, and the finish tends to vary due to human requirements. In addition, it is troublesome because it is necessary to perform processing work such as removing excess joint material protruding from the joint.
Since this work is on-site work, there is a problem that it leads to a longer construction period. Furthermore, the wet joint material is inferior in durability, becomes thin over time, and has a poor appearance,
There is also a problem that the waterproofness is impaired due to cracks.

On the other hand, the joint structure using the dry joint material has a small number of steps for the construction work, the work can be simplified, and variations in the finish due to human requirements hardly occur. Since the dry joint material can be formed in advance in a factory or the like, it has advantages that it can be industrialized and has excellent durability.

[0005]

However, in the joint structure using the dry joint material described above, the waterproofness of the joint is ensured in the case of so-called vertical joint or horizontal joint, but the joint around the opening surrounded by the vertical joint and the horizontal joint is secured. In the joint, there is a problem that a joint portion of a dry joint material is generated at a corner portion, which is inferior in waterproofness.

The present invention has been made in view of the above problems, and an object thereof is a joint structure formed at a joint between a sash frame attached to an opening of an outer wall surface and an exterior material around the sash frame. Another object of the present invention is to provide a joint structure that ensures high waterproofness, is easy to construct, has a good appearance, and has excellent durability.

[0007]

In order to achieve the above object, the first invention is formed in a joint portion between a sash frame attached to an opening of an outer wall surface and an exterior material around the sash frame. In a joint structure, a joint material attached to the vertical and horizontal joints, and a corner joint material attached to the abutting portion of the joint material, the corner joint material, a cover material for covering the joint material at both ends of the abutting portion. is formed integrally with the cover member, have a leg portion to be inserted into corner, little of the joint member or the corner joint member
At least one is a concave part attached to the side surface of the sash frame.
Material and joint material having legs that can be fitted to the concave member
And a main body .

[0008]

[0009]

A second invention is characterized in that, in the first invention, the concave member integrally has a lip which is closely attached to a side end surface of the exterior material.

A third aspect of the present invention is a joint structure formed at a joint between a sash frame attached to an opening of an outer wall surface and an exterior material around the sash frame. And a joint material body having a leg member that can be fitted to the concave member, at least the joint material body being bent along the corner of the sash frame. It has a feature.

A fourth invention is characterized in that, in the third invention, the concave member integrally has a lip which is closely attached to the side end surface of the exterior material.

[0013]

According to the first aspect of the invention, the cover and leg of the corner joint material can cover and bury the joint portion of the joint material, and the problem of ensuring the waterproofness of the joint can be solved. The joint between the joint material and the corner joint material can be covered with the cover portion of the corner joint material so that it has a good appearance, and since both the joint material and the corner joint material are regular joint materials, the appearance, the work is simplified and the durability is improved. It is possible to solve the problem of ensuring sex.

[0014]

According to the first and third aspects of the present invention, since the joint material has the concave member to be attached to the side surface of the sash frame and the joint member main body which can be fitted with the concave member, the joint is airtight. It is possible to further improve the property and solve the problem of ensuring waterproofness of joints. Further, since the internal stress due to the deformation of the joint material is not generated, it is possible to obtain a joint structure having better durability.

According to the second and fourth aspects of the invention, since the concave member has the lip, the adhesion with the exterior material is enhanced, the outflow of the filler can be prevented, and higher waterproofness is secured. be able to.

[0017]

Embodiments of the present invention will be described in detail below with reference to the drawings.

(Embodiment 1) FIG. 1 is a front view showing a part of a joint structure according to Embodiment 1, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is taken along line BB of FIG. FIG.

The joint structure according to the first embodiment has a sash frame 70 attached to the opening 60 on the outer wall surface and a sash frame 70.
The joint material 10 and the corner joint material 20 are attached to a joint portion 90 with the surrounding exterior material 80.

The material of the joint material 10 is a thermoplastic resin, a thermosetting resin, a vulcanized rubber or the like. More specifically, for example, as a rubber type, ethylene-propylene-diene rubber (EPDM), chlorinated polyethylene is used. As the thermoplastic resin, polyvinyl chloride, polyethylene,
Examples of the thermosetting resin include polypropylene and the like.
Examples thereof include polyurethane and silicone.

As shown in FIG. 2, the joint material 10 has a leg portion 12 that can be inserted into the joint portion 90.
The contact piece 14 extending toward the exterior material 80 and the exterior material 80 from the lower end
And a contact piece 16 extending to the side. The shape of the joint material 10 on the side of the sash frame 70 is concave, and the upper and lower parts thereof are most protruded.

The corner joint material 20 is a dry joint material exclusively for the corner portion, which is formed in a substantially L shape in advance according to the shape of the corner portion, and covers the corner portion 92 of the joint portion 90 and the cover portion 22. It has a leg portion 24 that protrudes vertically from the back surface of the portion 22, and has a substantially T-shaped cross section.
The cover portion 22 and the leg portion 24 are integrally formed, and at both end portions of the corner joint material 20, only the cover portion 22 having no leg portion 24 on the back surface is formed for a predetermined length.

As the material of the corner joint material 20, the same material as the joint material 10 is used.

Next, the attachment state of the joint material 10 and the corner joint material 20 having the above-described structures to the joint portion 90 will be described.

The joint material 10 is formed by pressing the leg portions 12 into vertical and horizontal joint portions of the square joint portion 90 along the periphery of the sash frame 70 excluding the corner portions 92 so as to insert the leg portions 12 into the joint portions. Attached, as shown in FIG.
In the joint material 10, the contact piece 14 is in contact with the side surface of the exterior material 80, the contact piece 16 is in contact with the rear surface of the exterior material 80, and the upper and lower portions of the joint material 10 on the sash frame 70 side are in contact with the side surfaces of the sash frame 70, respectively. Contact. Since the joint material 10 includes the contact pieces 14 and 16 and the shape of the sash frame side is concave, the joint material 10 is easily pushed into the joint portion 90, and the adhesiveness with the exterior material 80 and the sash frame 70 is high. And the joint material 10 has a high sealing effect.

The corner joint material 20 is attached by first filling the caulking material 110 into the corner portion 92 of the joint portion 90 and then inserting the leg portions 24 into the corner portion 92. As shown in FIG. 1, the cover portion 22 includes the joint materials 10 and 10 for butting, which are pressed against the vertical and horizontal joint portions.
Covers both ends and also covers the corner portion 92. Further, with the corner joint material 20 attached to the corner portion 92, the end surfaces of the leg portions 24 are in contact with the end surfaces of the leg portions 12 of the joint material 10.

In the joint structure according to the first embodiment, by mounting the dedicated corner joint material 20 that fits the corner portion 92, no joint gap is formed in the corner portion 92, and the joint material is also made. Since the cover portion 22 of the corner joint material 20 covers the joint portion between the corner joint material 10 and the corner joint material 20, it is possible to obtain a joint structure having high waterproofness and a good appearance.

Further, since the joint forming work is completed by simply attaching the joint material 10 and the corner joint material 20 which have been formed in advance to the joint portion 90 on site, the work efficiency is good.

(Second Embodiment) Next, a second embodiment of the present invention will be described.

FIG. 4 is a sectional view showing a joint structure according to the second embodiment.

The joint structure according to the second embodiment has a sash frame 70 attached to the opening 60 on the outer wall surface, and a sash frame 70.
The joint material 90 is attached to a joint portion 90 with the surrounding exterior material 80 along the joint portion 90.

The joint material 30 is a joint body 3 in a rising shape.
2 and an extending portion 36 that extends from the lower end of the joint body 32 to the outer surface of the exterior material, and has an L-shaped cross section.

The joint main body 32 is provided with a contact piece 34 extending to the side of the exterior material 80 on the side of the exterior material 80, and the shape of the side portion of the sash frame 70 side is a concave shape in which the upper side and the lower side project most. There is.

The extending portion 36 is formed so as to extend from the lower end of the joint body 32 to the exterior material 80 side, and has a contact piece 38 extending to the rear surface side of the exterior material 80 at the end thereof.

The material of the joint main body 32 and the extending portion 36 is
From the same as the joint material 10 according to the first embodiment, the joint main body 32 can be bent, for example, polyvinyl chloride, polyethylene, polypropylene, etc., and the extension 36 can be bent and stretched, for example, foamed poly. Choose vinyl chloride, expanded polyethylene, expanded polypropylene, etc.

Next, the mounting state of the joint material 30 having the above structure to the joint portion 90 will be described.

The joint material 30 extends along the sash frame 70 attached to the opening 60 before attaching the exterior material 80.
The side of the sash frame 70 side of the joint body 32 is attached to the side surface of the sash frame 70 so as to be in contact therewith.

FIG. 5 is a front view showing a corner portion around the sash frame 70.

Since the joint main body 32 is bendable and the extending portion 36 is bendable and extendable, the joint filler 30 can be attached by bending the joint filler 30 along the sash frame 70 at the corner portion. .

After mounting the joint material 30, the exterior material 80
Are attached so as to be pressed against the joint material 30.

In the joint material 30, as shown in FIG. 4, the contact piece 34 is in contact with the side surface of the exterior material 80, and the contact piece 38 is in contact with the exterior material 8.
0 sash frame 70 of the joint material main body 32
Since the upper part and the lower part on the side are respectively brought into contact with the side surfaces of the sash frame 70, the adhesiveness with the exterior material 80 and the sash frame 70 is good, and the joint material 30 has a higher sealing effect.

As described above, in the joint structure according to the second embodiment, one joint material 3 is provided around the sash frame 70.
Since joints can be formed by continuously attaching 0, joints of joint materials do not occur at corners,
It has highly waterproof joints and good appearance.

The joint material 30 is formed in advance in the factory, and the joint forming work is completed simply by mounting it on the spot, so that the work efficiency is good. Further, since the joint can be formed by only one kind of joint material 30, the number of parts can be reduced.

(Third Embodiment) Next, a third embodiment of the present invention will be described.

The joint structure according to the third embodiment is different from the joint structure according to the first embodiment in that the joint material 40 shown in FIG. 6 is used instead of the joint material 10 attached to the joint portion 90 shown in FIG. It is composed of a fixed-size sealing material 100.

FIG. 6 is a sectional view showing a state in which the joint material 40 is attached to the joint portion 90.

The same members as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

Generally, in longitudinal joints and lateral joints, since the joints are formed on the furring strips, when the irregularly shaped sealing material is used, the furring strips serve as backer materials, but such furring strips are present at the openings. Therefore, a backer material is required when using an irregular seal at the opening.

As shown in FIG. 6, the joint filler 40 is composed of a joint filler main body 46 and a concave member 42 serving as a backer member.
It is a split type.

The joint material main body 46 has a cover portion 47 that covers the joint portion 90 and a leg portion 48 that vertically projects from the back surface of the cover portion 47 and that can be fitted into the concave member 42.

The concave member 42 is provided with a fitting portion 43 into which the leg portion 48 of the joint material 46 is fitted, and integrally has a lip 44 on the edge of the exterior material 80 side.

At the joint portion 90, the siding material 80
The depth from the back surface of the joint to the bottom of the joint 90 is siding material 8
Since it is constant regardless of the thickness of 0, it is possible to attach the concave member 42 to the side surface of the sash frame 70 in advance, and the joint portion 90 due to the difference in the thickness of the siding material 80.
The difference in depth is adjusted by pushing the joint material main body 46.

As the material of the joint material main body 46, the first embodiment is used.
The same material as the joint material 10 in (1) is used, and a material that does not adhere to the irregular sealing material 100 is selected.

The material of the concave member 42 is the same as that of the joint material 10 in the first embodiment. For example, foamed polyvinyl chloride, which is elastic and has an irregular shape.
Select the material to be bonded with 0. Also, the leg portion 4 of the joint material main body 46
In order to make it easy to fit the eight, the edge portion forming the fitting portion 43 is preferably made of a material harder than other portions such as non-foamed polyvinyl chloride.

The attachment of the corner joint material 40 will be described.

First, the concave member 42 is attached to the side surface of the sash frame 70 with the adhesive material 102, and then the exterior material 80 is attached. The back surface of the exterior material 80 contacts the lip 44. Then, after filling the space surrounded by the sash frame 70, the exterior material 80, and the concave member 42 with the irregular-shaped seal material 100, the leg portion 4
The corner joint filler 40 is attached by pressing the joint filler main body 46 against the joint 90 so that 8 is inserted into the fitting portion 43 of the concave member 42.

The leg portion 48 of the joint material main body 46 does not adhere to the irregular sealing material 100, and the contact surface of the concave member 42 with the irregular sealing material 100 adheres to the irregular sealing material 100. Since the concave member 42 is made of a soft material, it can easily follow the movement of the joint in the opening direction.

The shape and attachment of the corner joint material 20 are almost the same as those of the first embodiment, but it is necessary to caulk the joint portion between the joint material 40 and the corner joint material 20 in order to ensure waterproofness.

In the joint structure according to the third embodiment, since the joint material 40 is composed of members that are fitted to each other, it is possible to ensure good adhesion and high waterproofness.
Further, since internal stress due to deformation does not occur, durability is good.

Further, since the concave member 42 is provided with the lip 44, it is possible to prevent the irregular sealing material 100 from rolling to the back side of the exterior material 80, and to maintain high adhesion.

Other than the above, the effects are the same as in the first embodiment.

The concave member in Example 3 does not necessarily need to have the lip as long as the adhesiveness between the exterior material and the concave member is high.

As a modification of the above-described third embodiment, the corner joint material 20 according to the first embodiment may be a split type having the same structure as the joint material 40. Alternatively, only the corner joint material may be a split joint material, and in that case, the joint material according to the first embodiment may be used for the vertical and horizontal joints.

As a second modification, the joint material body 46 of the joint material 40 is manufactured from a bendable material, and the sash frame 7 is used.
The jointing material main body 46 may be continuously attached along the joint portion 90 around 0. In this case, it is not necessary to use the corner joint material.

In the joint structure according to the second modification, since the joint structure is composed of joint members which are fitted to each other and no joint portion of the joint material is formed on the joint surface, higher waterproofness is obtained. The joint structure is secured and the appearance is good.

Further, the joint material main body is made of a bendable material, and the concave member is made of a bendable and stretchable material, and both members are bent along the sash frame 70 at the opening portion and continuously attached. May be.

The present invention is not limited to the above-mentioned embodiments, but various modifications can be made within the scope of the present invention.

For example, in a steel-framed building, when joining lightweight concrete panels, there is a case where there is no backer material on the back side of the joint and the joint portion penetrates the inside and outside of the building. In that case Irregularly shaped sealing material leaks to the inside of the building. In such a case, a concave member of a two-piece joint material that fits with each other is used as a backer material, and this concave member prevents the irregular sealing material from leaking to the inside of the building, thereby making it possible to use lightweight concrete. It becomes possible to easily and surely perform joint treatment between the manufactured panels.

[0069]

As described above, according to the first aspect of the present invention, the joint structure is composed of the joint material which is attached to the vertical and horizontal joints and the corner joint material which fits the corner portion and covers the abutting portion of the joint material. Is configured,
High waterproofness can be ensured even at the corners and joints between joints, and joints and corner joints are preformed standard joints, so joint construction is easy and the joint structure is good in appearance. There is an effect that can be obtained.

[0070]

According to the first and third aspects of the invention, since the joint structure is composed of the divided joint materials which can be fitted to each other, it is possible to obtain a joint structure having higher waterproofness, Since the internal crown force due to the deformation of the material is not generated, it is possible to obtain a joint structure with good durability.

According to the second and fourth aspects of the invention, the adhesiveness between the exterior material and the joint material is good, and it is possible to prevent the filler from wrapping around the back side of the exterior material, so that the joint structure is more waterproof. Can be improved.

[Brief description of drawings]

FIG. 1 is a front view showing a part of a joint structure according to a first embodiment.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a sectional view taken along line BB in FIG.

FIG. 4 is a cross-sectional view showing a joint structure according to Example 2.

5 is a front view showing a corner portion of a joint structure according to Example 2. FIG.

FIG. 6 is a cross-sectional view showing a joint structure according to Example 3.

[Explanation of symbols]

10, 30, 40 joint material 20, corner joint material 12, 24, 34, 48 legs 22,47 Cover part 14, 16, 35 abutment pieces 32 joint material body 36 Extension 42 concave member 44 lips 46 joint material body 60 openings 70 sash frame 80 Exterior material 90 joints 92 Corner

Claims (4)

(57) [Claims] 1. In a joint structure formed at a joint between a sash frame attached to an opening of an outer wall surface and an exterior material around the sash frame, a joint material attached to vertical and horizontal joints, and the joint. A corner joint material that is attached to the abutting portion of the material, the corner joint material includes a cover material that covers the joint material at both ends of the abutting portion, and a leg portion that is integrally formed with the cover material and that is inserted into the corner portion. Yes, and at least one of said joint member or the corner joint member
Is a joint material body having a concave member attached to the side surface of the sash frame and a leg portion that can be fitted into the concave member.
And a joint structure characterized by having. 2. The joint structure according to claim 1 , wherein the concave member integrally has a lip that is closely attached to the side end surface of the exterior material. 3. A joint structure formed at a joint between a sash frame attached to an opening of an outer wall surface and an exterior material around the sash frame, wherein a concave member attached to a side surface of the sash frame, A joint material body having leg portions that can be fitted into the concave member, and a joint material having: a joint material body, wherein at least the joint body body is bent and attached along a corner portion of a sash frame. Construction. 4. The joint structure according to claim 3 , wherein the concave member integrally has a lip that is closely attached to the side end surface of the exterior material.