JPS6231521Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a watertight structure for panel joints, and particularly to a watertight structure for cross joints consisting of horizontal gaps and vertical gaps that occur at the corners of a plurality of panel units constituting a wall surface.

As shown in Fig. 1, a curtain wall is constructed by attaching a plurality of panel units 1, 1, . . . to a frame to form a wall surface. That is, adjacent joint portions 2, 2, . . . of adjacent panel units 1, 1, . . . are loaded with a sealing material to ensure watertightness. Figure 1 is an example of a wall surface that is flat in front and curved on both sides as shown in the cross section in Figure 2. As shown in FIG. 4, which is an enlarged view of part B, the sealing material extends from the front side of the panel unit 1 toward the back side, and includes a caulking material 3 as an irregularly shaped sealing material and a back-up material holding the caulking material 3. A primary seal consisting of 4, a secondary seal consisting of a hollow elastic tight material 5 fitted behind the primary seal, and a holding fitting 6 for holding this secondary seal are arranged in an array. . Since the caulking material 3 is in the form of gum, the primary seal can seal the entire front surface of the joint 2, but the secondary seal usually uses a molded material made of synthetic rubber such as chloroprene rubber or other synthetic resin. Because of this, it is not possible to seal all the joints 2, and in particular, the cross joints that occur at the corners of the panel unit 1 become open, so a cross-shaped elastic tight material is inserted into these parts.

That is, conventionally, as shown in FIGS. 5 to 7, the horizontal gaps 2a, 2a and the vertical gaps 2 of the joint portion 2
A long elastic tight material 5 was fitted into the portions b and 2b, and a cross shaped elastic tight material 8 having the same shape as the remaining cross joint portion 7 was fitted into the remaining cross joint portion 7. However, the elastic tight material 5 extending from the top and bottom and left and right sides of the cross joint portion 7 serves as a partition between the horizontal gap 7a and the vertical gap 7b.
The watertightness of the joint between the cross-shaped elastic tight material 8 and the cross-shaped elastic tight material 8 was incomplete. It is unavoidable that the elastic packing 5 will vary in its insertion position, and therefore the cross joint portion 7
The dimensions of the cross-shaped elastic tight material 8 are not always the same during construction, and even if the cross-shaped elastic tight material 8 is adjusted to the dimensions of the cross-joint portion 7, it will not be possible to make them adhere tightly to prevent capillary action at the connecting portion. be.

This idea was made in view of the problems of the prior art described above, and by fitting a specially shaped elastic sealing material into the cross joints of the panel unit, the cross joints were made completely watertight. It is intended for this purpose.

This invention will be explained in detail below. However, the same parts as before are given the same symbols.

The elastic sealing material 10, which is the essential part of this invention, has a substantially cross shape, and has cross joints formed by horizontal gaps 7a and vertical gaps 7b that occur at the corners of the plurality of panel units 1, 1, ... that constitute the wall surface. It is inserted into 7.

That is, as shown in FIG. 8, the elastic sealing material 10 includes a rectangular horizontal piece 10a, and
an upright piece 10b connected to one side of the rear part of a; and an upright piece 10b connected to the center of the upper side of the upright piece 10b;
an upright tongue piece 10c that is flush with the horizontal piece 10a, and a hanging tongue piece 10d that is connected to the center of the other side located at the front opposite to one side of the horizontal piece 10a and that is parallel to the upright tongue piece 10c. The material is the same as that of the elastic tight material 5. The front corner of the horizontal piece 10a is cut off diagonally to take a corner, and the entire piece is slightly inclined forward, and the edge C is finished with an arcuate chamfer. Further, the upper side of the upright piece 10b and both sides of the upright tongue piece 10c are formed to be inclined inward with a predetermined width, and the back surface of the inclined side part a is tapered so that the top of the edge becomes thin. There is. Similar sloped sides a are formed on both sides of the hanging tongue piece 10d, and the top of the edge of the sloped side a is connected to the horizontal piece 1.
It is continuous with the other side of 0a, so the hanging tongue piece 10
The front flat portion b of d is provided at a somewhat recessed position with respect to the horizontal piece 10a.

The elastic sealing material 10 is fitted between the back-up material 4 and the holding fitting 6 as shown in FIG. The upright piece 10b is arranged so as to seal the bottom of the horizontal gap 7a.
Place it so that the rear surface of a is sealed. Therefore, the elastic tight members 5, 5 disposed in the left and right horizontal gaps 7a, 7a of the tenth joint part 7 are held at their rear and bottom surfaces by the horizontal piece 10a and the upright piece 10b,
The upper corner of the rear surface of the elastic tight material 5 is the upright side 1
They are brought into close contact by the inclined side a of 0b. Note that the lower corner of the front surface of the elastic tight material 5 is provided with a horizontal piece 10.
It is desirable that the elastic tight material 5 and the back-up material 4 be brought into close contact with each other so that they are exactly in contact with the starting line L of the arcuate portion of the edge portion C formed on the other side of a.

The upright tongue piece 10c is arranged so as to seal the upper rear surface of the vertical gap 7b of the cross joint part 7, and the hanging tongue piece 10d
are arranged so as to seal the lower front surface of the vertical gap 7b. Therefore, the upper and lower vertical gaps 7b, 7 of the cross-shaped joint portion 7
If the elastic tight member 5 disposed at b is located at the upper part, the rear surface thereof is the upright tongue piece 10.
c, and if it is located at the bottom, its front surface is held by the hanging tongue piece 10d. The sloping side portion a of the upright tongue piece 10c also comes into close contact with the corner portion of the elastic tight member 5, as in the case of the horizontal gap described above. The elastic sealing material 10 fitted in the above position is held by the upright piece 10b by the holding fitting 6.
The back of the device is supported and fixed.

In this way, the elastic sealing material 10 is fitted so that the cross joint portion 7 overlaps with the elastic tight material 5 in the vertical and horizontal directions, and the fitted state is elastic tight due to the inclined side portions a formed on each side. It will be brought into close contact with the material 5. Therefore, even if rainwater that cannot be prevented by the primary seal enters the cross joint portion 7, the upright tongue pieces 10c, the upright pieces 10b,
Water is prevented from leaking inward by the horizontal piece 10a and the hanging tongue piece 10d. In the above explanation, an example was given in which the elastic tight material was used as the secondary seal, but the elastic sealing material according to the present invention uses the elastic tight material on the outdoor side as the primary seal, and the elastic tight material is used as the secondary seal. As an elastic material for primary sealing of cross joints when using tight material or irregularly shaped sealing material,
Alternatively, it goes without saying that it can be used as a sealing elastic material for a tight material when a cross joint portion is sealed only by an elastic tight material.

As mentioned above, this design has a watertight structure in which elastic sealing material is fitted into the cross joints that occur at the corners of the panel unit, so there is no connecting part unlike the conventional technology, and rainwater does not enter the indoor side. can be completely prevented. Moreover, since the structure is such that the hanging tongue of the elastic sealing material seals the lower front surface of the vertical gap at the cross joint, intruding rainwater can flow down the hanging tongue and be drained without stagnation. It produces the above effect.

[Brief explanation of the drawing]

Fig. 1 is a front view of a curtain wall to which this invention is applied, Fig. 2 is a sectional view taken along the - line in Fig. 1,
3 is an enlarged vertical sectional view of part A in FIG. 2, FIG. 4 is an enlarged view of FIG. 2, FIG. 7 is a perspective view of the cross-shaped elastic tight material used conventionally, and FIG. 8 is a view showing the elastic sealing material of this invention, where A is a perspective view and B is a front view. In the figures, C is a side view, D is a plan view, Fig. 9 is a plan explanatory diagram of the watertight structure of the cross joint part of this invention, Fig. 10 is a sectional view taken along the line - - of Fig. 9, and Fig. 11 is It is a perspective view of the watertight structure of a cross joint part. 1...Panel unit, 7a...Horizontal gap, 7b
... Vertical gap, 7... Cross joint part, 10a... Horizontal piece, 10b... Upright piece, 10c... Upright tongue piece, 1
0d... hanging tongue piece, 10... elastic sealing material.

Claims (1)

[Scope of utility model registration request] A rectangular horizontal piece that seals the bottom surface of an elastic tight material disposed in the horizontal gap of the joint at a cross joint consisting of a horizontal gap and a vertical gap that occurs at the corner of a plurality of panel units constituting the wall surface. , an upright piece connected to one side of the horizontal piece and sealing the rear surface of the elastic tight material in the horizontal gap; and a rear side of the elastic tight material connected to the upper side of the upright piece and disposed above the vertical gap. an upright tongue piece that seals the vertical gap; a hanging tongue piece that is connected to the other side opposite to one side of the horizontal piece and seals the front surface of the elastic tight material disposed at the bottom of the vertical gap; A watertight structure for a panel joint portion, characterized in that an elastic sealing material consisting of an upper side and sloped sides formed inwardly on both sides of the upright tongue piece and the hanging tongue piece is fitted into the cross joint portion. .