JPH06101287A - Joint waterproof structure and simple joint material - Google Patents

Abstract

PURPOSE:To improve the efficiency of joint treatment operation by sticking a waterproof adhesive tape with a watertight resin stuck layer onto the internal surface of a recessed joint groove formed to the connecting end face of a wall board while pushing the internal surface of the groove by fillers from the inside. CONSTITUTION:A waterproof adhesive tape 6, in which a watertight synthetic- resin stuck layer is attached onto the surface of a nonwoven fabric 9, is stuck into a recessed joint groove formed between the connecting end faces of a wall board 1. Fillers 7 molded by semirigid foamed urethane, etc., are pushed in under a compressed state from the inside of the waterproof adhesive tape 6, and the waterproof adhesive tape 6 is contact-bonded with the joint groove. The intrusion of rainwater from outdoors is prevented positively. Accordingly, aimed treatment operation on a field can be conducted efficiently.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint waterproof structure and a simple waterproof structure for connecting a plurality of rectangular wall plates in a vertical or horizontal direction and forming a concave joint groove formed at a joint in the vertical or horizontal direction. Regarding joint material.

[0002]

2. Description of the Related Art Conventionally, when a plurality of rectangular wall plates are connected vertically or horizontally to form an outer wall, joints between the wall plates are jointed with a sealing material. ing.

That is, as shown in FIG. 10, the wall plate 1,
It is a figure which shows the joining part which connected 1 to the horizontal direction and produced in the vertical direction (up-down direction), and the back-up material (back-filling material) 2 is interposed between the wall plates 1 and 1. Then, on the outdoor side G of the joint portion, by the end faces 1a, 1a of the wall plates 1, 1 and the surface 2a of the backup material 2 extending in the longitudinal direction, a longitudinal groove having a predetermined groove width L1 and groove depth L2. The gutter 3 is formed. Then, by filling the vertical joint groove 3 with the sealing material 4, it is possible to prevent rainwater from entering from the outdoor side G.

[0004]

However, the prior art has the following problems. Firstly, the sealing material 4 of the vertical joint groove 3 is surface-bonded to the end faces 1a, 1a of the wall plates 1, 1 and the surface 2a of the backup material 2, that is, is filled in a three-point bonded state, Material 4 is
When it is exposed to the outdoors for a long period of time, it shrinks, and it deteriorates and deforms while hardening. Therefore, the adhesive force to the wall plates 1 and 1 and the backup material 3 is gradually reduced, and a gap is apt to be formed between them, and further, the cured sealing material itself may crack during an earthquake, Joint groove 3
Therefore, the joint material (sealing material 11) filled in the vertical joint groove 3 in a three-point adhesive state has a problem in terms of waterproof function and durability.

Secondly, when the vertical joint groove 3 is filled with the sealing material, a masking process is performed (the mask 5 is attached as shown in FIG. 10) so that the edge of the outer wall is not contaminated with the sealing material. After performing pretreatment such as primer coating work in the vertical joint groove, filling the sealing material in the vertical joint groove, spatula pressing, masking removal, etc.
Since the number of processes is large and the work is time-consuming, it is the current situation that a lot of construction costs are required.

The present invention has been made in view of the above problems, and an object thereof is to provide a joint waterproof structure and a simple joint material which are excellent in durability and can reduce construction cost.

[0007]

A joint waterproof structure according to claim 1 of the present invention is formed by connecting a plurality of rectangular wall plates in a vertical or horizontal direction and at a joint in the vertical or horizontal direction. It is a waterproof structure for a concave joint groove, and the joint surface in contact with the inner surface of the concave joint groove formed by the end faces of the wall plate facing each other in the vertical direction or the horizontal direction and between the end faces is a water-tight resin adhesive layer. And a waterproof adhesive tape having a cloth layer integrally joined to the back surface is fixed, and the waterproof adhesive tape fixed to the joint groove is pressed from the inside so that the cloth layer is in surface contact with the compressed adhesive tape. It has a structure in which a filling body is filled.

Further, the simple joint material according to a second aspect of the present invention connects a plurality of rectangular wall plates in the vertical direction or the horizontal direction, and is filled in a concave joint groove formed in a joint portion in the vertical direction or the horizontal direction. Which is a simple joint material, wherein the waterproof adhesive tape is fixed to the inner surface of the concave joint groove formed by the end faces in the vertical or horizontal direction facing each other of the wall plate, and the joint groove in the compressed state. A waterproof adhesive tape comprising a filling body to be filled, a water-tight resin adhesive layer bonded to the inner surface of the joint groove, and a cloth layer integrally bonded to the back surface of the resin adhesive layer,
The filler is formed of release paper that is temporarily adhered to the resin adhesive layer, and the filling body has two opposite sides whose cross-section is larger than the groove width of the joint groove and a groove length approximately the same as the groove depth of the joint groove. It is characterized by being formed of a semi-rigid elastic body having a quadrangular shape having two opposite sides.

The simple joint material according to a third aspect is the one according to the second aspect, wherein the thickness of the filling body is set to be slightly larger than half the groove width of the joint groove. Moreover, the widthwise length of the filling body is composed of two rectangular parallelepiped divided bodies whose length is equal to the groove depth of the joint groove, and one side surface of each of the two divided bodies has an adhesive surface. Is provided,
Furthermore, it is characterized in that one release paper is temporarily adhered to these adhesive surfaces.

[0010]

According to the joint waterproofing structure of the first aspect of the present invention, the joint surface contacting the inner surface of the concave joint groove formed by the end faces of the wall plates facing each other in the longitudinal direction or the lateral direction and the end faces is watertight. Since the waterproof adhesive tape having the cloth layer integrally joined thereto is fixed to the back surface of the resin adhesive layer, the rainwater can be reliably prevented from entering from the outdoor side.

Further, since the waterproof pressure-sensitive adhesive tape is held while being pressed from the inner surface side, a compressed filler which is in surface contact with the cloth layer is filled, so that the waterproof function is enhanced.

Further, since there are no three-point-bonded portions, which has been a problem with the use of the conventional sealing material, there is no problem in terms of durability even if it is exposed to the outdoors for a long time.

Further, according to the simple joint material of the second aspect, when performing the joint treatment operation, as compared with the joint treatment operation using the conventional sealing material, masking treatment, primer application, spatula pressing, etc. Since this process is deleted, labor saving on site work and construction cost can be significantly reduced.

Further, according to the simple joint material of the third aspect, the resin adhesive layer of the waterproof adhesive tape is used in the joint groove by using the plate-like filler to which the release paper is temporarily adhered as the pressing member. It can be firmly fixed to.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to FIG. However, the dimensions, materials, shapes, relative positions, etc. of the components described in this embodiment are not intended to limit the scope of the present invention to them unless otherwise specified. , It is just an example of explanation. Further, the same components as those shown in FIG. 10 are designated by the same reference numerals and the description thereof will be omitted.

The joint material according to the present invention comprises a waterproof adhesive tape 6 fixed in the vertical joint groove 3 and a filler 7 mounted in the vertical joint groove 3 to which the waterproof adhesive tape 6 is adhered. ing.

The waterproof adhesive tape 6 is, as shown in FIG.
A watertight synthetic resin adhesive layer 8 formed of polyurethane resin or the like, a non-woven fabric layer 9 tightly and integrally bonded to the synthetic resin adhesive layer 8, and a release paper 10 temporarily bonded to the entire surface of the synthetic resin adhesive layer 8. It consists of and.

The shape of the waterproof adhesive tape 6 is such that the waterproof adhesive tape 6 can be fixed over the entire end surfaces 1a, 1a of the outer wall plates 1, 1 forming the vertical joint groove 3 and the surface 2a of the backup material 2. It has a rectangular shape with a width. The release paper 10 temporarily attached to the synthetic resin adhesive layer 8 includes the central side 10a and the left and right sides 10b, 10c of the synthetic resin adhesive layer 8.
It is configured in a state of being divided into three parts.

On the other hand, the filling body 7 is formed of a semi-hard urethane foam or the like which can be pressed and filled into the vertical joint groove 3 in a compressed state.

As shown in FIG. 2, the filling body 7 before being filled in the vertical joint groove 3 has a thickness H1 slightly larger than 1/2 of the groove width T1 of the vertical joint groove. It is configured by two rectangular parallelepiped-shaped divided bodies 7a, 7a (same shape) whose length H2 in the width direction is set to the same length as the groove depth T2 of the vertical joint groove. And these two divided bodies 7
Adhesive surface 11 is provided on one side 7b of each of a and 7a, and one release paper 1 is provided on each of the adhesive surfaces 11 and 11.
2 is temporarily bonded.

As a result, the filler 7 before use, to which the release paper 12 has been temporarily adhered, has a score line 13 along the length direction.
Is provided and has a plate-like structure that can be folded in half. When the filling body 7 is filled in the vertical joint groove 3, the release paper 12 is peeled off, and then the adhesive surface 1 is folded in half.
By joining 1 and 11 together, as shown in FIG. 3, the cross-sectional shape has a side S1 having a dimension larger than the groove width T1 of the vertical joint groove 3 and a groove depth T2 of the vertical joint groove 3. It is formed in a square shape having sides S2 of the same length.

Next, the waterproof adhesive tape 6 and the filler 7
A procedure for performing joint processing on the vertical joint groove 3 using the joint material consisting of will be described with reference to FIGS. 4 to 7.

First, the release paper 10a in the central portion of the waterproof adhesive tape 6 is peeled off, and the exposed synthetic resin adhesive layer 8 is placed on the center of the surface a of the backup material 2 in the vertical joint groove 3 as shown in FIG. Stick to it. Then, the left and right release papers 10b, 10
c is peeled off, and the entire waterproof adhesive tape 6 is removed from the non-woven fabric layer 9 side, and the surface 2a of the backup material 2 and the end faces 1 of the wall plates 1 and 1 are removed.
Press it to the side a, 1a. Here, as the pressing method, it is conceivable to use a method of using a finger of an operator or to use a jig (a spatula or the like), but in this embodiment, the filling body 7 (the release paper 12 is temporarily adhered before use). It is possible to use a plate-shaped filling body 7) that is open. That is, as shown in FIG. 4, one end side in the width direction of the filling body 7 is inserted into the non-woven fabric layer 9, and the one end side is used as a pressing portion to provide the waterproof adhesive tape 6
Push the whole. As a result, the synthetic resin adhesive layer 8 can be securely attached to the end faces 1 of the wall plates 1 and 1 without using any other tool.
a, 1a and the surface 2a of the backup material 2 are fixed (see FIG. 5).

Next, as shown in FIG. 6, the release paper 12 of the filling body 7 (divided bodies 7a, 7a) is peeled off to divide the divided bodies 7a, 7a.
Fold a in half and join the adhesive surfaces 11, 11 together,
The filling material 7 having a quadrangular cross section shown in FIG. 3 is formed.

Then, the filler 7 is pressed and filled into the lateral joint groove 3 to which the waterproof adhesive tape 6 is fixed while being compressed. This completes the joint treatment for the vertical joint groove 3 (see FIG. 7).

Next, the function and effect of this embodiment will be described. First, in the joint treatment structure of this embodiment, the waterproof adhesive tape 6 is fixed on the entire inner surface of the vertical joint groove 3, that is, the end surfaces 1a and 1a of the wall plates 1 and 1 and the surface 2a of the backup material 2. Therefore, the synthetic resin adhesive layer 8 surely prevents rainwater from entering from the outdoor side G, and the compressed state where the waterproof adhesive tape 6 is held in contact with the non-woven fabric layer 9 so as to be held while being pressed against the inner surface side. Since the filling body 7 is filled, a joint treatment structure having an improved waterproof function can be obtained.

Further, since there are no three-point-bonded portions, which has been a problem due to the use of the sealing material 11 of the prior art, there is no problem in terms of durability even if it is exposed outdoors for a long period of time. Further, even when performing the joint treatment work, as compared with the joint treatment work using the sealing material 11 of the prior art, no steps such as masking treatment, primer application, and spatula pressing are performed, which saves on-site work. And the construction cost can be significantly reduced.

Furthermore, by using the plate-shaped filler 7 to which the release paper 12 is temporarily adhered as the pressing member, the waterproof adhesive tape 6 can be securely fixed to the inner surface of the vertical joint groove 3. .

In FIGS. 8 and 9, the longitudinal wall formed by joining the wall plates 1 and 1 of the actual structure in which the concave portion 15 is formed on one end surface and the convex portion 16 is formed on the other end surface. Gutter 3
2 shows a joint waterproof structure in which a simple joint material composed of the waterproof adhesive tape 6 and the filling body 7 is attached. And, the chamfering processing (reference numeral 1 in the drawing
7) is applied.

As described above, the joint waterproofing structure of the present invention can be sufficiently applied to the wall plates 1 and 1 having the joint structure of the actual structure, and the joint waterproofing structure as shown in FIGS. The same effect can be obtained. In the present embodiment, the joint waterproof structure for the vertical joint groove 3 generated at the joint portion of the wall plates 1 and 1 in the vertical direction (vertical direction) has been described, but the joint waterproof structure and the simple joint material of the present invention are The present invention can be applied to a lateral joint groove formed in a lateral (horizontal) joint between the wall plates 1 and 1 while obtaining the same effect.

[0031]

As described above, according to the first aspect of the present invention.
According to the joint waterproof structure described, the joint surface in contact with the inner surface of the concave joint groove formed by the end faces in the vertical or horizontal direction facing each other and the end faces of the wall plate is a resin adhesive layer having watertightness, and A waterproof adhesive tape with a cloth layer integrally bonded to the back side is fixed, and a compressed filler that is in surface contact with the cloth layer is filled so as to hold the waterproof adhesive tape pressed against the inner surface. Thus, it is possible to obtain a joint treatment structure that reliably prevents rainwater from entering from the outside.

Further, since the waterproof adhesive tape is filled while being pressed against from the inner surface side and is filled with the filler in the compressed state which is in surface contact with the cloth layer, the waterproof function is enhanced.

Further, since the sealing material, which has been a problem in the prior art, does not have a three-point bonded portion, it is possible to provide a joint treatment structure having excellent durability even when it is exposed to the outdoors for a long time. it can.

Further, by using the simple joint material according to the second aspect of the present invention in the joint treatment operation, as compared with the joint treatment operation using the conventional sealing material, the masking treatment, the primer application, and the spatula are performed. By eliminating the steps such as holding down, it is possible to save labor on site and greatly reduce construction costs.

Furthermore, by using the simple joint material according to claim 3 of the present invention and using a plate-like filler to which release paper is temporarily adhered as a pressing member, the waterproof adhesive tape is provided with vertical joint grooves. It can be securely fixed to the inner surface of the.

[Brief description of drawings]

FIG. 1 is a side view in a width direction showing a filling body of a simple joint material according to the present invention.

FIG. 2 is a side view in the width direction showing a waterproof adhesive tape of a simple joint material according to the present invention.

FIG. 3 is a cross-sectional view in which the filling body of the simple joint material according to the present invention is deformed so as to be able to fill the vertical joint groove.

FIG. 4 is a horizontal cross-sectional view showing an initial state in which the waterproof adhesive tape is fixed to the vertical joint groove in the joint waterproof structure according to the present invention.

FIG. 5 is a horizontal cross-sectional view showing a waterproof adhesive tape fixed to a vertical joint groove in the joint waterproof structure according to the present invention.

FIG. 6 is a diagram showing a state in which the release paper of the filling body is peeled off in the joint waterproofing structure according to the present invention.

FIG. 7 is a horizontal cross-sectional view showing a state in which the waterproof adhesive tape is fixed to the vertical joint groove and the filler is filled in the joint waterproof structure according to the present invention.

FIG. 8 is a horizontal cross-sectional view showing another embodiment of the joint waterproofing structure according to the present invention.

FIG. 9 is a horizontal sectional view showing still another embodiment of the joint waterproofing structure according to the present invention.

FIG. 10 is a horizontal sectional view showing a conventional joint waterproof structure.

[Explanation of symbols]

1 Wall plate 1a End face of wall plate 2 Backup material 2a Surface of backup material 3 Vertical joint groove (joint groove) 6 Waterproof adhesive tape 7 Filler 7a Divided body 8 Synthetic resin adhesive layer (resin adhesive layer) 9 Nonwoven fabric (cloth layer) 10 Release Paper (Release Paper Temporarily Adhesive to Synthetic Resin Adhesive Layer) 11 Adhesive Surface of Filler 12 Release Paper (Release Paper Temporarily Adhesive to Adhesive Surface) 13 Cut Line L1 Vertical Groove Width L2 Vertical Groove depth of joint groove (joint groove) H1 thickness of divided body H2 length in width direction of divided body S1 Vertical packing of rectangular cross section that is larger than groove width of joint groove (joint groove) One side S2 One side of the filling body having a rectangular cross section with the same length as the groove depth of the vertical joint groove (joint groove)

Claims (3)

[Claims] 1. A waterproof structure for connecting a plurality of rectangular wall plates in a vertical or horizontal direction to a concave joint groove formed at a joint in the vertical or horizontal direction, the wall plates facing each other. The waterproof adhesive tape in which the joint surface in contact with the inner surface of the concave joint groove formed by the vertical or horizontal end faces and between the end faces is a water-tight resin adhesive layer, and the cloth layer is integrally joined to the back surface. And a joint waterproof structure in which the waterproof adhesive tape fixed to the joint groove is pressed from the inside so as to be in surface contact with the cloth layer and filled with a compressed filler. 2. A simple joint material which connects a plurality of rectangular wall plates in a vertical direction or a horizontal direction and is filled in a concave joint groove formed at a joint in the vertical direction or the horizontal direction, wherein the wall It is composed of a waterproof adhesive tape fixed to the inner surface of the concave joint groove formed by the end faces of the plate facing each other in the vertical direction or the horizontal direction and between the end faces, and a filler filled in the joint groove in a compressed state. The waterproof adhesive tape comprises a water-tight resin adhesive layer that is bonded to the inner surface of the joint groove, a cloth layer integrally bonded to the back surface of the resin adhesive layer, and a release paper that is temporarily bonded to the resin adhesive layer. The cross section of the filling body is a square having two opposite sides each having a dimension larger than the groove width of the joint groove and two opposite sides having substantially the same length dimension as the groove depth of the joint groove. It is characterized by being formed of a semi-rigid elastic body that is a shape Simple joint material. 3. The filler has a thickness of 1 / the groove width of the joint groove.
It is composed of two rectangular parallelepiped divided bodies which are set to be slightly larger than the length of 2 and whose length in the width direction is set to the same length as the groove depth of the joint groove. 3. The simple joint material according to claim 2, wherein each of the side surfaces has an adhesive surface, and a release paper is temporarily adhered to the adhesive surface.