JP2004360271A - Joint structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint structure which is provided with primary and secondary cut-off means so as to prevent leakage of water into a building by checking water by the secondary cut-off means, in the case the water passes through the primary cut-off means and intrudes into the joint, and which prevents a deterioration in cut-off properties even if the width of a joint is changed due to variations in the construction of the joint. <P>SOLUTION: In an external facing material 13, a U-shaped cross-section substrate material 11 is mounted on the backside of an end. The secondary cut-off means comprises: a steel cover 15, wherein watertight materials 16 are stuck on both sides, and the respective sides of which are inserted into the substrate materials 11 for the external facing materials 13 on both the sides along with the watertight materials 16; a screw rod 17 which is protruded from a central part of the cover so as to be inserted into the joint 12c, between columns 14, of the substrate material; and a nut 19 which is screwed into a protruded part of the screwed rod 17, protruded from between the columns, via a stopper 18. The primary cut-off means is composed of a gasket 21. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a joint structure of an outer wall of a building.
[0002]
[Prior art]
FIG. 1 shows an example of a conventional joint structure of this kind, which is formed of a molded product such as resin or synthetic rubber or a refractory material such as silicone sponge, glass wool, or rock wool, which is inserted into a joint 2 between exterior materials 1. A secondary gasket 3 and a primary gasket 4 having a design covering the joint 2.
[0003]
FIG. 2 shows another example of a conventional joint structure as disclosed in Patent Document 1 below, in which both side pieces are expanded outward, and the joint 2 between the exterior materials 1 is covered from the outside. A cover 6, a watertight material 7 made of synthetic rubber or resin adhered to both sides of the back surface of the cover, a screw rod 8 projecting from the center of the back surface of the cover at appropriate intervals in the longitudinal direction, and applied to the joint 2 from inside. It comprises a washer-shaped stopper 9 and a nut 10 which is screwed into a threaded rod 8 protruding from the stopper 9 and fastened.
[0004]
[Patent Document 1] Japanese Utility Model Publication No. 63-29764
[Problems to be solved by the invention]
In the type shown in FIG. 1 described above, when the joint width is increased due to the unevenness in joint construction, the water stopping performance is reduced. On the other hand, the joiner type shown in FIG. 2 can cope with a change in joint width. However, since only the primary waterproofing is not set and the secondary waterproofing is not set, the water is used in the exterior material 1 and the watertight material 7. If you intrude through the space, water will leak inside the building.
[0006]
The present invention provides primary and secondary water stopping means, and even if water invades the joint through the primary water stopping means, the water is shut off by the secondary water stopping means and the interior of the building is shut off. In the joint structure capable of preventing water leakage to the joint, even if the joint width changes due to unevenness in joint construction, the water stoppage does not decrease.
[0007]
[Means for solving the problem]
The invention according to claim 1 comprises a secondary water stopping means and a primary water stopping means which are respectively mounted on the inner and outer sides of the joint formed between the base materials of the building outer wall and between the exterior materials on the base material. In the joint structure of an outer wall of a building, the secondary water stopping means covers the joint between the columns from the outside, a watertight material attached to the back surface of the cover and tightly sealing the base material, and the cover A screw rod projecting from the center of the back surface at an appropriate distance in the longitudinal direction, a stopper applied to the joint between the columns from the inside, and a nut screwed into a projecting portion of the screw rod projecting through the stopper. Is characterized by comprising
The invention according to claim 2 comprises a secondary water stopping means and a primary water stopping means which are respectively mounted on the inner and outer sides of the joint formed between the base materials of the building outer wall and between the exterior materials on the base material. In the joint structure of an outer wall of a building, the secondary water stopping means covers the joint between the columns from the outside, a watertight material attached to the back surface of the cover and tightly sealing the base material, and the cover A screw rod protruding from the center of the back surface at an appropriate interval in the longitudinal direction, and a stopper having a screw hole formed in the joint between the columns from the inside and screwed into the screw rod. I do.
[0008]
According to each of the above inventions, the secondary water stopping means is stopped even if water invades the joint through the primary water stopping means, and water leakage into the building can be prevented. Even if the joint width fluctuates due to variations in the construction, only the contact position or contact area of the watertight material with respect to the base material changes, and the secondary water stopping means seals the joint between the base materials and secures water stoppage. be able to.
[0009]
Examples of the primary water stopping means used in the above inventions include a gasket and a sealing material as shown in FIG. 1, for example. As the gasket, one made of a molded product such as resin or synthetic rubber is used, and as the sealing material, one represented by urethane or modified silicone is used.
[0010]
A material similar to the gasket of the primary water stopping means can be used for the water tightness material of the secondary water stopping means, but a foam thereof is preferably used.
Examples of the stopper include a long band, a band through which a threaded rod is threaded at an appropriate interval in the longitudinal direction or a threaded hole with a threaded hole screwed into the threaded rod, and a piece member such as a washer. Can be. It is not necessary to provide a nut in the stopper having the screw hole formed therein, but a nut may be provided to prevent the stopper from loosening.
[0011]
The cover is not particularly limited as long as it can withstand the strength when the nut or the fastener is screwed into the threaded bar and fastened, but is not particularly limited, but is preferably a heat-resistant metal, more preferably a strong metal. It is desirable to use an inexpensive steel made of rustproofing.
Therefore, the invention according to claim 3 is characterized in that, in the invention according to claim 1 or 2, the cover is made of steel.
[0012]
According to a fourth aspect of the present invention, in the invention according to the first to third aspects, the exterior material has a base material forming a groove having a concave cross section on the back surface of the end portion, and the side piece of the cover is engaged with the base material. It is characterized by stopping.
ADVANTAGE OF THE INVENTION According to this invention, while a secondary water stopping means has a water stopping property, it can come to fulfill the function which fixes an exterior material.
[0013]
In the present invention, the side piece of the cover is locked to the base material, and the watertight material is further adhered to the base material. Such a base material is, for example, a U-shaped cross-section frame attached below the upper surface of the exterior material, a mounting plate attached to the back surface of the exterior material and projecting below the upper surface in parallel with the solid, or It can be constituted by a mounting plate or the like attached to the back surface of the material and protruding in parallel with the end of the exterior material.
[0014]
The invention according to claim 5 is characterized in that, in the invention according to claims 1 to 4, the cover is fixed so as to sandwich the pillar between the cover covering the base material and the stopper connected to the cover with a screw rod. I do.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 3 shows a joint structure according to the present invention, which is formed between a secondary water stopping means for stopping a joint 12a formed between base materials 11 and an exterior material 13 on the base material. It comprises primary water stopping means for stopping the joint 12b, and each water stopping means will be described below in order.
[0016]
The secondary water stopping means includes a long steel cover 15 having a dish-shaped cross section which covers the joint 12c between the columns 14 from the outside, and a belt-shaped cover 15 attached to both sides of the back of the cover 15 as shown in FIG. A watertight material 16 made of a synthetic rubber or resin foam, a screw rod 17 protruding from the center of the back surface of the cover at regular intervals in the longitudinal direction, and a joint 12c between the columns are applied from the inside to the screw rod 17, and And a nut 19 screwed into a projecting portion of a screw rod 17 projecting from the stopper 18, and the stopper 18 has a hole (not shown in detail) through which the screw rod 17 passes. It is composed of a band formed at equal intervals with the screw rod 17, or is composed of a washer.
[0017]
The primary water stopping means is a gasket 21 similar to the gasket 4 shown in FIG.
The exterior material 13 has a base material 11 having a concave cross section and a U-shaped cross section integrally attached to an end face, and forms an outer wall panel together with the base material 11.
Next, a construction example of the joint structure shown in FIG. 3 will be described.
[0018]
An outer wall panel composed of a base material 11 and an exterior material 13 is attached to a foundation and a beam of a building, joints 12a and 12b are formed between adjacent outer wall panels, a watertight material 16 is attached, and a screw rod 17 is provided. The cover 15 protruding at regular intervals is dropped from the upper part of the outer wall panel such that the cover 15 enters the joint 12a and the screw rod 17 enters the joint 12c between the columns 14.
[0019]
Next, a stopper 18 is inserted into each screw rod 17 projecting from the joint 12c between the columns 14, and covers the joint 12c. A nut 19 is screwed and fastened to the projecting portion of the screw rod 17 projecting from the stopper 18. Thereafter, the gasket 21 is inserted into the joint 12b between the exterior members 13 and attached.
[0020]
【The invention's effect】
According to the first and second aspects of the present invention, the primary and secondary water stopping means are provided, and even if water intrudes through the primary water stopping means, it is stopped by the secondary water stopping means. It is possible to prevent water leakage into the building, and because the cover of the secondary water stopping means covers the joint between the pillars and stops the water, the joint width may fluctuate due to variations in construction. Even if there is, the joint between the base materials is sealed, and the water stoppage can be ensured.
[0021]
According to the invention according to claim 3, the joint structure can have fire resistance by making the cover made of steel.
According to the fourth and fifth aspects of the present invention, it is possible to provide the secondary water stopping means with the water stopping property and to have the function of fixing the outer wall panel.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a conventional joint structure.
FIG. 2 is a sectional view of another example of a conventional joint structure.
FIG. 3 is a sectional view of a joint structure according to the present invention.
FIG. 4 is a perspective view of a main part of a secondary water stopping means used in the joint structure shown in FIG. 3;
[Explanation of symbols]
11. Base materials 12a, 12b, 12c Joints 13. Exterior materials 14. Columns 15. Covers 16. Watertight materials 17. Screw rods 18. Stoppers 19. Nuts 21 Gaskets

Claims (5)

Joints on the outer wall of the building composed of secondary water-stopping means and primary water-stopping means mounted on the inner and outer sides of joints 12a, 12b formed between the base materials of the building outer wall and between the exterior materials 13 on the base material, respectively. In the structure, the secondary water stopping means is provided with a cover 15 that covers the joint 12c between the columns from the outside, a watertight material 16 that is attached to the back surface of the cover 15 and tightly seals the base material, 15, a screw rod 17 protruding from the center of the back surface at an appropriate interval in the longitudinal direction, a stopper 18 applied to the joint 12c between the columns from the inside, and a projecting portion of the screw rod 17 protruding through the stopper 18 A joint structure comprising a nut 19 screwed into the joint. Joints on the outer wall of the building composed of secondary water-stopping means and primary water-stopping means mounted on the inner and outer sides of joints 12a, 12b formed between the base materials of the building outer wall and between the exterior materials 13 on the base material, respectively. In the structure, the secondary water stopping means is provided with a cover 15 that covers the joint 12c between the columns from the outside, a watertight material 16 that is attached to the back surface of the cover 15 and tightly seals the base material, A screw rod 17 protruding from the center of the back surface of the base member 15 at an appropriate distance in the longitudinal direction, and a stopper 18 having a screw hole formed in the joint 12c between the columns from the inside and screwed into the screw rod 17. Joint structure characterized by becoming. The joint structure according to claim 1 or 2, wherein the cover (15) is made of steel. The joint structure according to claim 1, wherein the exterior material has a base material having a concave cross section on a back surface of an end portion, and a side piece of a cover is locked to the base material. 5. The fixing device according to claim 1, wherein the column is fixed between the cover covering the base material and the stopper connected to the cover by a screw rod. Joint structure described.

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