JPS5819220Y2 - Panels for exterior walls of buildings - Google Patents

Description

[Detailed description of the invention] This invention relates to external wall panels for buildings that are used to form external wall surfaces using the curtain wall construction method, and a sealing material that is used by being attached in an annular manner to the peripheral side of the panel in order to maintain watertightness between the panels. This is an improved version of .

Exterior wall panels are attached to the exterior of a building in a planar manner so as to surround the exterior of the building.

A molded sealing material made of a gasket such as annular elastic rubber is fitted onto the peripheral side of this panel and fixed with adhesive.
By fitting and fixing molded sealing material into an annular groove or protrusion formed on the peripheral side of the panel, and attaching the panels by pressing them together with the molded sealing material on the periphery, it is possible to attach the molded sealing material from between the panels to the back side of the panel. Measures are taken to prevent rainwater from entering.

This sealing material is applied to the area near the back side of the peripheral side of the panel (inside the building) for appearance and construction reasons, so there are no tiles between the many panels installed on the exterior of the building. Grooves will be formed like joints.

By the way, if a gap is created between the panels due to vibrations caused by an earthquake, such as when the panels shift relative to each other, not only rainwater that enters the grooves near the gap, but also rainwater in the grooves that are far away, can flow down the grooves. It flows and flows into the back side of the panel through the gap.

The upper and lower panels are arranged so that the steps formed at their ends overlap each other, and the bottom edge of the upper panel overlaps the outer surface of the lower panel, so that the upper panel overlaps the outer surface of the lower panel. Due to the eaves effect at the lower end, rainwater is less likely to enter the groove between the upper and lower panels.

However, since the vertically extending grooves between the horizontally arranged panels are open directly on the outside, rainwater can easily enter, and if the corners of the panels are not carefully constructed, water can easily leak. Rainwater that has entered the vertical grooves tends to leak to the back side from here.

The present invention aims to provide a panel for the exterior wall of a building that has further improved waterproof properties compared to such a curtain wall panel.

The present invention provides a molded annular sealing material, which has conventionally been used as an annular joint material, with branch-like parts that extend toward the outside of the panel along the circumferential side of the panel, and these branch-like parts create a large number of grooves between the panels. It is partitioned into sections, and rainwater that has entered each partition is drained out along the branches.

An example of the exterior wall panel according to the present invention will be described with reference to the drawings.

In the figure, 1 is an exterior wall panel, 1a is the outer surface facing the outside, 1b is the peripheral side, and 1C is the back surface.

On the circumferential side surface 1b, a molded annular sealing material 2 formed in a square frame shape so as to fit into the circumferential side surface 1b is provided at a portion close to the back surface 1C side.
is fixed with adhesive.

The molded annular sealing material 2 is made by connecting a hollow cylindrical body made of an elastic material such as neoprene rubber, or a molded sealing material such as a string-like sponge material with a coating formed on the outer surface into a frame shape.

The molded annular sealing material 2 and the circumferential side surface 1b of the outer wall panel 1 are connected by fitting a groove or a protrusion formed on the circumferential surface 1b with a corresponding portion of the sealing material formed to fit therewith. Good too.

Reference numeral 2a denotes a branch-shaped portion extending from the annular portion of the molded annular sealing material 2 toward the outer surface 1a of the panel 1 along the circumferential surface 1b.

The branch portion 2a is also attached to the peripheral surface 1 in the same manner as the molded annular sealing material 2.
b.

This branch portion 2a is provided so as to be in contact with that of another panel 1.

When the branch portions 2a are provided in this way, as shown in FIG. 2, when the panel 1 is attached to a building so that the molded annular sealing materials 2 are in contact with each other in a planar manner, the molded annular sealing material 2 that is generated becomes the bottom part. The opposing branch-like portions 2a partition the groove 3 into small sections.

Therefore, during strong winds and rain, rainwater that enters the groove 3 hits the branch part 2a coming out from the annular part and flows out to the outside, and the rainwater flows to the faulty part, causing water leakage from the faulty part to the back side 1C. Water leakage can be stopped only from rainwater that has entered the groove 3 near the failed part without increasing the size.

In addition, since the branch part 2a is relatively short, if the branch part 2a and the annular part are separate parts, they will easily fall off during handling such as panel installation. If you set it up, it will not fall off because it is continuous with the annular part.
Also, the watertightness of the connecting portion between the branch portion 2a and the annular portion can be completely changed.

If the circumferential side surface 1b is flat, the branch portions 2a may be provided by simply branching into rod shapes as shown in the lower part of FIG. 1, or if the circumferential side surface 1b is stepped It is provided so as to be bent along the step as shown by the dotted line.

Further, if the branch part 2a is provided near the lower end of the circumferential surface extending in the vertical direction of the wall panel 1, like the upper branch part 2a shown by the solid line in FIG. Above the area where the corners of the panel 2 converge, the rainwater that has entered the groove 3 flows out through the branched part 2a, making the area where the corners of the panel converge, which is the most difficult to maintain watertight, watertight. It has the effect of compensating for this, and can further improve the water-resistance properties of the sealing material.

Furthermore, as shown in 2b, if a hanging portion is formed that is bent from the outer surface 1a end of this branch portion 2a toward the lower end of the panel, the portion where the corners of the molded annular sealing material 2 gather will be covered from the outer surface as well. , waterproofness can be further improved.

[Brief explanation of the drawing]

FIG. 1 is a partial perspective view of an embodiment of an exterior wall panel according to the present invention, and FIG. 2 is a schematic diagram of four exterior wall panels of FIG. 1 arranged in a used state and viewed from the back side. 1... External wall panel, 1a... External surface,
1b... Circumferential side, IC... Back side, 2.
... Molded annular sealing material, 2a ... Branch portion, 2b ... Drooping portion, 3 ... Groove.

Claims (3)

[Scope of utility model registration request] (1) A panel for an exterior wall of a building having a molded annular sealing material fitted and fixed on the circumferential side of the building, characterized in that the sealing material is provided with a branch-shaped portion extending from the annular portion to the circumferential side of the panel. Panels for exterior walls. (2) A panel for an exterior wall of a building according to claim (1), wherein the branch portion is provided near the lower end of the circumferential side of the panel in the vertical direction. (3) The panel for an exterior wall of a building according to claim (2), which has a hanging portion in which the branch portion protrudes toward the outer surface of the panel and is bent toward the lower end of the panel.