JPH0529292Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) Among steel sheet panels, it is used for painted steel sheets called colored galvanized iron sheets, laminated steel sheets, that is, steel sheets coated with resin films or sheets (hereinafter simply referred to as coated steel sheets), etc. Regarding the improvement of molded products that have undergone secondary processing such as flange bending, this specification mentions that not only surface damage to the coating film or coating film previously applied to the coated steel sheet but also property deterioration may occur. The following describes the results of research and development aimed at making it easier to bend peripheral flanges without cracks, as well as improving the durability and waterproof performance of panel work using this product.

(Prior art) Japanese Utility Model Application Publication No. 59-6116 relates to a surface-finished metal plate wall panel in which the four corner curved portions of the panel are composed of an upper drawn and bent portion and a lower non-drawn portion having a notch or cut portion. However, even if this lower notch or notch is covered with sealing and caulking material after the panel construction is completed, the curved portion may be in contact with the joint intersection of the panel construction. Therefore, the volume of the joint filled here is much larger than the volume per equivalent length of the parallel part of the joint, so when severe thermal expansion occurs due to direct sunlight, etc. There are advantages and disadvantages, such as being extruded and impairing the waterproof function.

(Problem to be solved by the invention) The inventors first proposed that each edge of a polygonal face plate has a straight flange and a flat flange, and the rounded corners between adjacent edges have straight flanges on each edge. It has a curved flange in which only the flanges are connected in an arc shape with the same width, and at the joint area between this curved flange and each straight flange on both sides, a hook-shaped cut is made from the edge of the curved flange toward the straight flange. ,
Although we proposed an improvement as shown in the specification of Utility Model Application No. 191657/1983 regarding a steel plate panel having a pair of slots, we further investigated the problem and decided to eliminate the wrinkles that may occur when forming a curved flange. It has also become clear that there is little need for a hook-shaped slot opening.

Therefore, in addition to reducing the number of openings facing the round corners of the panel, which are the joint intersections of the panel work,
Furthermore, the purpose of this invention is to provide a steel plate panel that can be easily subjected to secondary processing for forming the panel.

(Means for solving the problem) This invention has a straight flange and a flat flange on each edge of a polygonal face plate, and a straight flange on each edge with an equivalent square flange in the rounded corner between adjacent edges. It has a curved flange that is connected in an arc shape in width, and a remaining end flange that protrudes on the same plane as the flat flange at its hem, and each straight flange near the joint area between this curved flange and each straight flange on both sides thereof,
This is a steel plate panel for interior and exterior use of buildings, consisting of a pair of slots cut from the edge of a flat flange.

This steel plate panel can be used not only for the exterior of buildings, but also for
Of course, it is suitable for interior use such as indoor walls, floors, and ceilings, but depending on the purpose, it can be formed secondary from materials that have been previously coated with the following coating treatment. Therefore, it is a prerequisite that unreasonable hard processing such as so-called drawing processing, which may damage the properties of the coated surface layer, is prohibited.

Coating methods: Electrostatic coating, roll coating, curtain flow, electrodeposition coating, dip coating, gravure printing, etc. (cut plate or coil) Undercoating: Epoxy resin, polyester resin, etc. Top coating: Alkyd, thermosetting acrylic, etc. Polyester, bichloride, silicone, fluororesin, etc. Also suitable as coated steel sheets are those laminated with films made of vinyl chloride, acrylic, polyester, polyethylene, fluororesin, etc.

Now, Fig. 1 shows an example of the exterior panel work using steel plate panels of this invention, in which 1 is a face plate, 2 is a straight flange, 3 is a flat flange, 4 is a rounded corner, 5 is a curved flange, and 6 is slot, 7
is the remaining flange.

In building exterior panels, usually called curtain walls, the steel plate thickness is generally around 1.6 mm.
The flange width of straight flange 2, that is, the joint depth is approximately 35
mm, and the overhang width of the flat flange 3 is approximately 15 mm, the flat flange 3 is overlapped between adjacent panels, and after fastening to the frame using studs, a sealing material 8 and a caulking material 9 are applied to the joints. Fill them sequentially to help with waterproofing.

Here, for the sealing material 8 and the caulking material 9, generally well-known materials such as butyl rubber, urethane, and thiocol can be used.

Next, Fig. 2 shows the procedure for forming a steel plate panel according to this invention in the order of steps, and 10 in Fig. 2a is an example of the material cut into a rectangular shape, which is of course galvanized and then coated. It has been processed.
For example, cutouts 11, which are indicated by diagonal lines in FIG. In the figure, 12 indicates the outer bending line of the flat flange 3, and 13 indicates the inner bending line of the straight flange 2.
A notch 14 extending between 2 and 13 and a tongue-like part 15 sandwiched between the notches 14 are formed at the four corners of the material 10.

Next, bending along the outer bending line 12 is performed on each edge of the material 10, and then bending along the inner bending line 13 is similarly performed on the portion shown in FIG. 2c. The semi-finished product 10' has an appearance almost similar to that of a steel plate panel except for the fact that .

Finally, each of the adjacent parts of the face plate 1 is pressed between a punch 16 and a die 17, as shown in FIG. The bending process of a curved flange 5 in which straight flanges 2, 2 on the edges are connected in an arc shape with the same width as the straight flanges 2, 2, and the bending process of the remaining end flange 7 projecting on the same plane as the flat flange 3 at the hem are simultaneously accomplished. Here, a pair of slots 6 are formed in the straight flange 2 in the vicinity of the joining area between the curved flange 5 and each of the straight flanges 2 on both sides thereof, each cut from the edge of the flat flange 3.

In this way, the forming of the rounded corners 4 shown in FIG. 2d is repeated at the four corners of the semi-finished product 10' to complete the finished product of the steel plate panel.

Note that the length of the slot 6 cut into the straight flange 2 may be shortened as long as the formation of the rounded corner portion 4 is not hindered.

(Function) With this invention, since the straight flange 2, the flat flange 3, the curved flange 5, and the remaining end flange 7 are individually processed mainly under simple bending stress, the surface of the coating treatment applied to the material surface in advance Products of any size can be easily obtained without causing damage or property deterioration, especially with curved flanges 5.
Since the curved flange 5 and the remaining end flange 7 are bent at the same time, wrinkles do not occur on the curved flange 5, and a pair of slots 6 are provided to facilitate this process.
faces toward the straight flange 2 and is only located near the joint area between the curved flange 5 and the straight flange 2, so the curved flange 5 itself does not have any openings,
Therefore, at joint intersections in panel work, the above two methods do not cause leakage of sealant due to the effect of thermal expansion caused by the joint volume, which is excessive when compared with the considerable length of the remaining joints. Contributes to making the next processing easier.

(Effects of the invention) The structure of the steel plate panel according to this invention is as follows: 1. It is easy to perform secondary processing by bending the straight flange, flat flange, curved flange, and extra end flange, and 2. The curved flange and the extra end flange can be formed simultaneously. ,
Since the slots, which are useful for guiding the bending process without causing wrinkles on the curved flange surface, do not open in the curved flange surface, a unique effect is brought about in that the durability of the waterproof performance of the joint is not deteriorated.

[Brief explanation of the drawing]

FIG. 1 is a partial external view of the panel work, FIG. 2 is an explanatory diagram of the procedure for forming a steel plate panel, and FIG. 3 is an explanatory diagram of a mold for a press for bending a curved flange. 1... Face plate, 2... Straight flange, 3... Flat flange, 4... Rounded corner, 5... Curved flange, 6...
...slot, 7...remaining flange.

Claims (1)

[Scope of utility model registration request] Each edge of the polygonal face plate has a straight flange and a flat flange, and in the rounded corners between adjacent edges, the straight flange of each edge is connected to a curved flange of the same width that extends in an arc shape, and the hem is flat. It has a flange and a remaining end flange that protrudes on the same plane as the flange,
A steel plate panel for the interior or exterior of a building, comprising a pair of slots recessed from the edge of a flat flange in each of the straight flanges near the joint area between the curved flange and the straight flanges on both sides thereof.