JP3644632B2 - Sealing backup material - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sealing backup material that regulates the back side of the sealing material filled in the joints of the panel, and in particular, a sealing backup that can be stably stored in the joints to ensure a sealing allowance even if the joint widths vary. It relates to materials.
[0002]
[Prior art]
In general, a joint material such as an outer wall panel of a house is filled with a sealing material, and a sealing backup material is often provided as a base for regulating the filling depth of the sealing material. As such a sealing backup material, conventionally, for example, a foamed synthetic resin such as foamed polyethylene formed into a square or circular rod shape has been used.
[0003]
FIG. 5 is a cross-sectional view showing a structure of a joint portion of an outer wall panel provided with a conventional sealing backup material. As shown in the figure, the outer wall panel 1 is fixed to the shaft assembly 2 by a mounting bracket 3, and a heat insulating material 4 is provided inside the outer wall panel 1. A sealing backup material 5 is disposed between the outer wall panels 1, i.e., at the joint, and the sealing material 6 is filled from above, thereby sealing the joint.
[0004]
[Problems to be solved by the invention]
The width of the joints of the outer wall panel 1 and the like is adjusted to a predetermined range of, for example, about 8 to 12 mm. On the other hand, if the sealing backup material 5 having a width of 10 mm is used, for example, the sealing backup material 5 and the joints are used. There is a dimensional error of about 2 mm at the maximum.
[0005]
When the width of the joint is narrower than the sealing backup material 5, the sealing backup material 5 is compressed and deformed, for example, using a spatula or the like, and is pushed into the deep part of the joint. The finish differs depending on the skill of the worker, and the indentation depth tends to be uneven for an unskilled worker. As a result, the filling amount of the sealing material 6 to be filled after that becomes non-uniform, and there is a problem that a portion where the sealing is insufficient occurs.
Moreover, since the mounting bracket 3 that contacts the back side of the sealing backup material 5 is present at only a few locations with respect to the entire height of the sealing backup material 5, the sealing backup is performed at a location where the mounting bracket 3 does not exist. When the material 5 is forcibly pushed in as described above, the sealing backup material 5 often falls to the back side of the outer wall panel 1.
[0006]
On the other hand, when the joint width is wider than the sealing backup material 5, the sealing backup material 5 is not properly accommodated in the joint, resulting in an unstable state such as a gap or rolling. For example, if the sealing material 6 is filled after the gap between the sealing backup material 5 and the outer wall 1 is filled, the air in the gap expands due to a change in the temperature, and the sealing material 6 is swollen. And there is a problem that it looks bad.
[0007]
The present invention has been made in view of such a problem, and an object of the present invention is to provide a sealing backup material that can be stably stored in the joint and can secure a sealing margin even if the joint width varies. And
[0008]
[Means for Solving the Problems]
The sealing backup material according to claim 1 of the present invention, which has been made to achieve the above object, is a sealing backup material that regulates the back side of the sealing material filled in the joints of the panel, and has a substantially cross-sectional view with an open back side. A core material made of a U-shaped elastic body, and both end portions that can be elastically deformed project from both sides of the core material on the surface side of the core material, and the width is from the minimum width of the joint to the maximum width. Sealing material provided to be within a range, and protruding from both side ends of the core material to both sides, the width of which is provided to be larger than the maximum width of the joint, The first fixing member in the shape of a blade that is elastically deformed in each of the above, and the protruding portion is provided on both sides from the vicinity of the middle between the surface of the core member and the end portions on both sides, and the width thereof is equal to that of the first fixing member. And elastically deforming in the joint, respectively. A second fixed member feathered in contact with the ring margin material is obtained by including a.
The sealing material and the first and second fixing members are elastically deformed according to the width of the joint to cope with variations in the width of the joint, and the inner surface of the joint is pressed to stabilize the accommodation of the sealing backup material. .
In addition, the second fixing member elastically deforms toward the sealing material in the joint and comes into contact with the sealing material. When the width of the joint is wider than the sealing material, the sealing material is secured together with the sealing material. To do.
Further, the sealing backup material is stably fixed by contacting the inner surface of the joint at a plurality of locations by the first and second fixing members.
In addition, both side ends of the core member can be elastically tilted inward, and the force required to press-fit the sealing backup material into the joint is reduced.
[0009]
Further, according to the present invention (Claim 2), in the sealing backup material according to Claim 1, the fixing member protrudes obliquely toward the surface side of the sealing backup material .
As a result, the first and second fixing members are easily elastically deformed to the front surface side of the sealing backup material and hardly elastically deformed to the back surface side. Improve the stability.
[ 0010 ]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagram showing a cross-sectional configuration of a sealing backup material 100 according to an embodiment of the present invention. As shown in the drawing, the sealing backup material 100 includes a core material 101 and a surface of the core material 101. And a first fixing member 103A and a second fixing member 103B provided so as to protrude from both side surfaces of the core member 101, respectively.
[ 0011 ]
The core material 101 has a substantially U-shaped cross-section with an open back side, and both side end portions 10 are bent slightly outwardly to widen the opening. The lateral width of the core material 101 is not particularly limited as long as it is smaller than the minimum width of the joint where the sealing backup material 100 is to be disposed. Also, the material of the core material 101 is not particularly limited. For example, if a synthetic resin such as a thermoplastic elastomer is used, the rod-shaped sealing backup material 100 continuously formed is stored and transported in a wound state. However, it is preferable that it can be cut according to the length of the joint at the construction site, and is easy to handle. More preferably, it is the same kind of material as the sealing material 102 provided on the core material 101, and the sealing fee. A material having higher rigidity than the material 102 or the like is preferable.
[ 0012 ]
In place of the core material 101 having a substantially U-shaped cross section, a square or circular rod-shaped body can be used. This is preferable because it can be tilted inward, that is, in the direction in which the opening is closed, and the force required for press-fitting the sealing backup material 100 into the joint is reduced and the workability is improved.
[ 0013 ]
The sealing blank 102 is a flat plate, and is provided on the surface side of the core material 101 so that both side ends 20 protrude from both sides of the core material 101, respectively. Each side end 20 protrudes evenly from the core material 101 and can be elastically deformed. The width W1 of the sealing blank 102 is not particularly limited as long as it is larger than the minimum width of the joint where the sealing backup material 100 is to be disposed, but it is preferably within the range from the standard width of the joint to the maximum width. . In addition, the material of the sealing material 102 is not particularly limited as long as it can be elastically deformed. However, as described above, for example, when a hard thermoplastic elastomer is used for the core material 101, It is preferable to use a material having a lower rigidity than the core material 101, such as using a soft thermoplastic elastomer.
Note that the surface of the sealing blank 102 does not necessarily have to be a flat surface, and can have a desired shape according to the type of the sealing material filled thereon.
[ 0014 ]
The first fixing member 103 </ b> A has a blade-like shape that protrudes outward from both end portions 10 of the core material 101. The width W2 formed by the left and right first fixing members 103A is larger than the maximum width of the joint where the sealing backup material 100 is to be disposed. For example, if the width W1 of the sealing blank 102 is the standard width of the joint, The first fixing member 103A protrudes outward from both side ends of the sealing blank 102. On the other hand, if the width W2 is made larger than the maximum width of the joint, the area that comes into contact with the inner surface of the joint when elastically deformed in the joint becomes wide, and the sealing backup material 100 is equivalent to the frictional resistance generated on the contact surface. Since the force for press-fitting the material into the joint is further required and the workability is inferior, it is preferable to set the size appropriately considering the workability, for example, by increasing the maximum width of the joint by about 10 to 50%.
[ 0015 ]
In addition, each first fixing member 103A protrudes in an oblique direction toward the front surface side, whereby the first fixing member 103A is easily elastically deformed to the front surface side, but is difficult to elastically deform to the back surface side. Thus, for example, even when the force when pressing the sealing backup material 100 into the joint is uneven, the first fixing member 103A is on the front side and the other first fixing member is fixed. The member 103A is elastically deformed to the back surface side, and the sealing backup material 100 does not tilt in the joint and is stably press-fitted. Therefore, when the sealing backup material 100 is press-fitted, the sealing margin is always formed stably in the joint regardless of the skill level of the operator.
[ 0016 ]
The second fixing member 103B is a blade-like member protruding outward from the middle of the surface of the core material 101 and the side end portions 10, and is formed by the left and right second fixing members 103B. The width is equal to the width W2 formed by the first fixing member 103A. Similarly to the first fixing member 103A, each of the second fixing members 103B protrudes in an oblique direction toward the front surface side, and is easily elastically deformed to the front surface side, but is not easily elastically deformed to the back surface side. Therefore, the stability at the time of press-fitting and storing the sealing backup material 100 is improved.
[ 0017 ]
In the present embodiment, two fixing members are provided on both sides of the core material. However, in the present invention, the number of the fixing members is increased or decreased according to the thickness of the sealing backup material, for example. be able to.
[ 0018 ]
Hereinafter, a method of using the sealing backup material 100 will be described.
FIG. 2 is a cross-sectional view showing a state in which the sealing backup material 100 is disposed in a joint, and the outer wall panel 1 is attached to a shaft set or the like as shown in FIG. In FIG. 2, for convenience of explanation, a shaft set, a mounting bracket, and the like are omitted.
The sealing backup material 100 is disposed at the back of the joint between the outer wall panels 1 and serves as a base for regulating the back side of the sealing material filled in the joint thereafter. Note that the joint width L1 in FIG. 2 is a standard width, that is, the median value of the adjusted joint width range.
[ 0019 ]
When the sealing backup material 100 is press-fitted into the joint between the outer wall panels 1 configured as shown in FIG. 2, first, the sealing backup material 100 wound up for transportation or the like is set to the length of the joint. Cut together. The cut sealing backup material 100 is sequentially press-fitted from the edge of the joint so that the surface, that is, the sealing material 102 faces the front. At this time, for example, if there is a mounting bracket or the like at the back of the joint and the press-fitting depth of the sealing backup material 100 is restricted, the sealing backup material 100 may be press-fitted until it comes into contact with the mounting bracket. When there is no member that regulates the press-fitting depth of the material 100, it is preferable to press-fit the sealing backup material 100 using an appropriate spatula or jig so that the sealing backup material 100 can be press-fitted to a uniform depth in the joint.
[ 0020 ]
When the sealing backup material 100 is press-fitted into the joint, the first fixing member 103A and the second fixing member 103B protruding wider than the joint width are elastically deformed to the surface side, respectively, and the first fixing member 103A and the first fixing member 103B The vicinity of the distal end of the second fixing member 103B comes into contact with the inner surface of the joint, and the inner surface of the joint is pressed by the contact surface due to its elasticity. On the other hand, the width W1 of the sealing blank 102 is equal to the joint width L1, but as shown in the figure, due to the elastic deformation of the second fixing member 103B, both side ends 20 are slightly elastically deformed to the surface side, respectively. Each second fixing member 103B comes into contact with the surface.
[ 0021 ]
As described above, the sealing backup material 100 is brought into contact with the inner surface of the joint at the four positions by the first fixing members 103A and the second fixing members 103B and is stably fixed at the back of the joint. In addition, a sealing margin is ensured for the entire joint without causing a gap or the like.
[ 0022 ]
FIG. 3 is a cross-sectional view showing a use state of the sealing backup material 100 when the joint width L2 shown in the figure is the minimum value of the adjusted joint width range. The method for press-fitting the sealing backup material 100 to the back is the same as described above.
[ 0023 ]
As shown in the figure, the sealing backup material 100 press-fitted into the joint has a first fixing member 103A and a second fixing member 103B protruding wider than the joint width L2, and elastically deforming to the surface side, respectively. And the inner surface of the joint is pressed by the contact surface due to its elasticity. On the other hand, since the width W1 of the sealing blank 102 is wider than the width L2 of the joint, both side ends 20 thereof are elastically deformed to the surface side, respectively, and come into contact with the respective second fixing members 103B that have already elastically deformed.
[ 0024 ]
As described above, even when the joint width L2 is small, the sealing backup material 102, the first fixing member 103A, and the second fixing members 103B are elastically deformed to make the sealing backup material 100 easy and stable. The sealing backup material 100 can be brought into contact with the inner surface of the joint at four locations by the first fixing members 103A and the second fixing members 103B as described above. Thus, it is stably fixed and stored at the back of the joint, and a sealing margin is secured for the entire joint without causing a gap or the like.
[ 0025 ]
When the joint width L2 is narrow, if the back side of the sealing backup material 100 is sandwiched inward from both sides, both side end portions 10 of the core material 101 are elastically tilted inward and the Since the width on the back side is slightly reduced, the sealing backup material 100 can be easily press-fitted into the joint.
[ 0026 ]
FIG. 4 is a cross-sectional view showing the use state of the sealing backup material 100 when the joint width L3 shown in the figure is the maximum value of the adjusted joint width range. The method of press-fitting the sealing backup material 100 to the part is the same as described above.
[ 0027 ]
As shown in the figure, in the sealing backup material 100 press-fitted into the joint, the first fixing member 103A and the second fixing member 103B protruding wider than the joint width L3 are elastically deformed to the surface side, respectively, and the inner surface of the joint And the inner surface of the joint is pressed by the contact surface due to its elasticity. On the other hand, since the width W1 of the sealing blank 102 is narrower than the joint width L3, both side ends 20 thereof are not elastically deformed, but each second fixing member 103B is elastically deformed to the surface side, whereby the second fixing Contact member 103B.
[ 0028 ]
Thus, even when the joint width L3 is wide, the first fixing member 103A and each second fixing member 103B are elastically deformed to press the sealing backup material 100 into the joint easily and stably. In addition, the sealing backup material 100 is in contact with the inner surface of the joint at four locations by each first fixing member 103A and each second fixing member 103B, and is stably fixed at the back of the joint. It fits. Furthermore, even when the joint width L3 is wider than the width W1 of the sealing blank 102, the sealing margin is ensured over the entire joint by the sealing blank 102 and the second fixing member 103B without causing a gap or the like.
[ 0029 ]
In the present embodiment, the case where the sealing backup material 100 is disposed at the joint between the outer wall panels 1 has been described. However, the joint where the sealing backup material according to the present invention is to be disposed is not limited to between the outer wall panels. Of course, for example, it can also be used in joints between the outer wall panel and the exterior accessory, joints between the sashes, and the like.
[ 0030 ]
【The invention's effect】
As described above, according to the sealing backup material of the present invention, the core material made of an elastic body having a substantially U-shaped cross section with the back surface opened, and both side ends that are elastically deformable on the surface side of the core material Projecting from both sides of the core material, sealing material provided so that the width is within the range from the minimum width of the joint to the maximum width, and protruding from both side ends of the core material to both sides respectively. A blade-shaped first fixing member that is provided so that its width is larger than the maximum width of the joint, and elastically deforms in the joint, and the vicinity of the middle of the surface of the core and both end portions And a blade-like second fixing member that protrudes on both sides from each other, has a width equal to that of the first fixing member, and elastically deforms in the joint and contacts the sealing material. Each elastically deforms corresponding to the width of the joint, and the inner surface of the joint Pressing stably fix the sealing backup material in the joint with. As a result, even when the joint width varies, the sealing backup material can be stably stored in the joint, so that a sealing margin can be ensured without causing a gap or the like.
Further, according to the present invention, the second fixing member is elastically deformed toward the sealing blank side in the joint and contacts with both side ends of the sealing blank to form a sealing margin. Even when it is wider than the substitute material, the sealing allowance can be secured without causing a gap or the like.
Further, according to the present invention, the sealing backup material is stably fixed in the joint by the fixing members in contact with the inner surface of the joint at a plurality of locations.
Further, according to the present invention, since the core member is an elastic body having a substantially U-shaped cross-section with an open back side, both side ends of the core member can be elastically tilted inward, and a sealing backup material It becomes easy to press-fit to the joint, and the workability is improved.
[ 0031 ]
Further, according to the present invention, the fixing member protrudes obliquely toward the surface side of the sealing backup material, and is easily elastically deformed to the surface side of the sealing backup material, and is difficult to elastically deform to the back surface side. Therefore, when the sealing back-up material is press-fitted, the sealing margin is formed stably in the joint regardless of the skill level of the operator.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a configuration of a sealing backup material 100 according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a state in which a sealing backup material 100 is disposed at a joint between outer wall panels 1;
FIG. 3 is a cross-sectional view showing a state in which a sealing backup material 100 is disposed at a joint between outer wall panels 1;
4 is a cross-sectional view showing a state in which a sealing backup material 100 is disposed at a joint between outer wall panels 1. FIG.
FIG. 5 is a cross-sectional view showing a state in which a conventional sealing backup material 5 is arranged at a joint between outer wall panels 1;
[Explanation of symbols]
100 Sealing backup material 101 Core material 102 Sealing material 103A First fixing member 103B Second fixing member

Claims (2)

A sealing backup material that regulates the back side of the sealing material filled in the joints of the panel,
A core made of an elastic body having a substantially U-shaped cross section with an open back side;
A sealing material provided on the surface side of the core material, with both ends that can be elastically deformed projecting from both sides of the core material so that the width is within the range from the minimum width of the joint to the maximum width; ,
A blade-shaped first fixing member that is provided so as to protrude from both side ends of the core material on both sides, and has a width larger than the maximum width of the joint, and elastically deforms in the joint, respectively. ,
Protrusively provided on both sides from the middle of the surface of the core and both end portions, and the width thereof is the same as that of the first fixing member, and elastically deforms in the joint, respectively. A sealing backup material comprising: a blade-like second fixing member in contact with the sealing backup material. 2. The sealing backup material according to claim 1, wherein the fixing member protrudes in an oblique direction toward the surface side of the sealing backup material.

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