JPH0421378Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a curved composite fire-resistant panel in which a fire-resistant material is fixed to the back side of a covering panel having a curved surface.

(Prior art) Composite fire-resistant panels used for external walls of buildings, etc., include lightweight aerated concrete boards, asbestos-cement boards, and asbestos-cement calcium silicate boards, as shown in Japanese Utility Model Application Publication No. 194420/1983. The panel is covered with a covering panel made of a box-shaped enamel panel, etc., with bent pieces arranged around the four circumferences of the main plate, which is approximately the same size as the surface of the fireproof panel.
In many cases, the main plate is connected and fixed to the above-mentioned fireproof panel using an adhesive and the bent pieces are connected and fixed to the fireproof panel using nails or the like. When a curved composite fireproof panel having a curved surface side is manufactured by using a covering panel in which the main plate portion has a curved plate shape, the same method as described above is used.

(Problem to be solved by the invention) However, when manufacturing a curved composite fire-resistant panel using the above method, a lower mold having a radius of curvature on the surface side of the covering panel and an upper mold having a radius of curvature on the surface side of the fire-resistant panel are required. It is necessary to use a strong mold to hold the stacked product of fireproof panels and covering panels under pressure to correct the unevenness of the main plate and harden the adhesive. For this reason, it is necessary to manufacture a mold every time the product shape changes, which increases costs, and unlike the case of a flat plate, it is not possible to make multiple products at the same time with one set of molds, which reduces production efficiency. It was hot. Furthermore, since it requires press equipment and skilled press workers, it could not be manufactured in a factory that did not have these.

This idea solves the above-mentioned conventional problems, and creates a curved composite fire-resistant panel that can be manufactured in a simple process without using presses or molds, requires low equipment and tool costs, and takes a short manufacturing time. This is what we are trying to provide.

(Means for solving the problem) However, the curved composite fireproof panel of Lever's invention has flexible A mounting frame having a curved engagement surface that engages with a back edge of a curved side of the fireproof panel curved along the main plate part is attached to the bent piece part. This is a curved composite fire-resistant panel characterized by being fixed.

(Function) In the curved composite fireproof panel of this invention, the curved engagement surface of the mounting frame restricts the fireproof panel to curve along the back surface of the main plate. As a result, the fireproof panel deforms into a curved plate shape having a cylindrical surface with an almost uniform bending radius due to the elasticity of the material of the fireproof panel itself. ) is pressed by the fireproof panel so that the bulging portion faces toward the surface side, the unevenness of the main plate portion is reduced, and a curved composite fireproof panel with excellent surface precision is obtained.

(Embodiment) An embodiment of this invention will be described below with reference to FIGS. 1 to 5.

As shown in FIGS. 1 to 3, the covering panel 1
is a box-shaped plate with a thickness of 1.6 mm in which bent pieces 3 are arranged around the four circumferences of a main plate 2 that is curved in the longitudinal direction.
Consists of enamel panels. Reference numeral 4 denotes a clip for attaching the panel to the building frame, which is welded to the bent piece 3. At the overlapping portion of the clip 4 and the folded piece 3, holes 6 and 7 having a larger diameter than the tap pin screw 5 (described later) are bored in the clip 4 and the folded piece 3, respectively. 1 is enameled after overlapping these holes and welding the clip 4. Also, the thickness of the fireproof panel 8 is 10~
It is made of a 30 mm calcium silicate plate, has a planar shape slightly smaller than the main plate part 2, is fitted into the covering panel 1 from the back side, and is overlapped with the main plate part 2. A mounting frame 10 is fixed to the bent piece part 3 with pin screws 5 so as to sandwich the fireproof panel 8 between the main plate part 2 and the main plate part 2. This mounting frame 10 consists of a pair of vertical frame members 11 made of R-bent angles extending along the bent piece part 3 in the longitudinal direction, and a pair of vertical frame members 11 made of angles extending along the bent piece part 3 in the width direction. It consists of a horizontal frame member 12 and an angle reinforcing member 13 that connects the intermediate portions of both vertical frame members 11, and the ends of each frame member are welded together via a connecting plate 14. Vertical frame material 11, horizontal frame material 12 and reinforcing material 1
The engaging surfaces 11a, 12a and 13a facing the main plate portion 2 of No. 3 engage with the back surface of the fireproof panel 8,
It has a function of regulating the fireproof panel 8 into a curved plate shape,
The vertical frame member 11 is R-bent so that the bending radius of the curved engagement surface 11a is equal to the bending radius of the surface of the main plate portion 2 minus the plate thicknesses of the main plate portion 2 and the fireproof panel 8. There is.

FIGS. 4 and 5 show the manufacturing process of the curved composite fireproof panel 16 having the above structure. First, as shown in FIG. 4a, the four edges of the main plate are supported along the two curved main plates. The covering panel 1 is placed face down on a support base 20 having a curved support surface 21 . This support stand 20 can be manufactured at low cost using an angle material 22 or the like which has been subjected to an R-bending process. Next, as shown in FIG. Place it on top of 8. Then, as shown in FIG.
The fireproof panel 8 is sandwiched between the vertical frame member 11 and the horizontal frame member 12 and the main plate portion 2 by tightening the lower surface of the support surface 21 forming member (angle member in this embodiment). As a result, the edge of the flexible fireproof panel 8 is aligned with the back surface of the main plate part 2.
is pressed against. In this state, insert the tassel pin screw 5 into the vertical frame member 11 through the holes 6 and 7 of the clip 4 attachment part.
and the horizontal frame member 12 to connect and secure these and the bent piece portion 3. Next, vertical frame material 11 and horizontal frame material 1
2 are welded to each other through the connecting plate 14, and the reinforcing plate 13 is pressed down by hand or the like with the engaging surface 13a facing the back side of the fireproof panel 8. In the pressed state, both ends are welded to the vertical frame member 11 via the connecting plate 14 to obtain a curved composite fireproof panel 16.

In the curved composite fireproof panel 16 having the above configuration, the flexible fireproof panel 8 whose edges are regulated along the main plate part 2 by the vertical frame members 11 and the horizontal frame members 12 has elasticity of the panel material. As a result, the main plate part 2 is deformed into a curved plate shape with a substantially uniform bending radius, and irregularities such as waviness of the main plate part 2 in contact with the surface of the fireproof panel are corrected, and the surface precision of the main plate part 2 is improved. As a result, a curved composite fireproof panel with excellent surface precision can be obtained without performing front crimping using a press as in the conventional method. According to the inventor's actual measurement results, the above-mentioned covering panel 1 (planar dimensions of main plate part 2 = 825 mm x 2847 mm, surface bending radius = 14000
mm) had unevenness of ±6 mm (undulation-like firing strain) on the surface of the main plate when assembled as a single unit with respect to a curved surface with a radius of 14000 mm, but the unevenness on the surface of the main plate after assembly in the curved composite fireproof panel 16 was was corrected to ±1 mm.

This invention is not limited to the above-mentioned embodiment. For example, in the above-mentioned embodiment, the mounting frame 10 having a reinforcing material 13 is used, so that the vicinity of the center of the fireproof panel 8 is reinforced by this reinforcing material 13, making it fireproof. It has the advantage of improving the bending precision of the panel 8 and the surface precision of the main plate part 2, but if the panel width is narrow or the fireproof panel is thick, this reinforcing material 13 may be omitted. good. Similarly, the horizontal frame member 12 may also be omitted if the panel width is narrow or the fireproof panel is thick. In addition, in the above embodiment, since no adhesive is interposed between the main plate part 2 and the fireproof panel 8, the manufacturing process is particularly simple, but for reinforcement etc., a slow drying material such as urethane rubber is used. An adhesive may be interposed between the main plate and the fireproof panel. Furthermore, the mounting frame 10 and the bent piece 3 may be fixed at a portion other than the clip 4, and may be fixed by other means such as rivets, bolts, welding, or adhesives in addition to the tuft pin screws 5. You can. In addition to the enamel panel, various types of panels such as stainless steel panels, colored iron panels, and synthetic resin-coated iron panels can be used as the covering panels in this invention.Flexible fire-resistant panels include calcium silicate panels. In addition, various fireproof panels such as asbestos cement board and gypsum board can be used.

Above, we have explained a curved fireproof panel that curves in the longitudinal direction, but this idea
The present invention can also be applied to composite fire-resistant panels that are curved, and can also be applied to composite fire-resistant panels that have a partially curved main plate.

(Effects of the invention) As explained above, according to this invention, it is possible to manufacture curved composite fireproof panels through a simple process without using presses or molds, and the equipment and tool costs are low. It only takes a short time. In addition, the curved engagement surface of the mounting frame restricts the fireproof panel to curve along the back surface of the main plate, which allows the fireproof panel to maintain a nearly uniform bending radius due to the elasticity of the material of the fireproof panel itself. Since it deforms into a curved plate shape with a cylindrical surface, the bulging part of the main plate overlaid on this fireproof panel toward the back side (fireproof panel side) is pressed by the fireproof panel so that it faces toward the front side, and the main plate It is possible to obtain a curved composite fireproof panel with reduced unevenness and excellent surface precision.

[Brief explanation of drawings]

Figure 1 is a perspective view of the back side of a curved composite fireproof panel showing one embodiment of this invention, and Figure 2 is A of Figure 1.
- A partial sectional view taken along the line A, FIG. 3 a partial sectional view taken along the B-B line, FIGS. c.
There is a partial sectional view taken along the line C-C. 1... Covering panel, 2... Main plate part, 3... Bent piece part, 5... Tatsupin screw, 8... Fireproof panel,
10... Mounting frame, 11a... Engagement surface, 16... Curved composite fireproof panel.

Claims (1)

[Scope of utility model registration request] A flexible flat fire-resistant panel is fitted onto the back side of a box-shaped covering panel in which bent pieces are arranged around the four circumferences of a curved main plate part, and the above-mentioned fire-resistant panel is curved along the main plate part. A curved composite fireproof panel characterized in that a mounting frame having a curved engagement surface that engages with a back edge of a curved side of the panel is fixed to the bent piece.