JPS63280149A - Curved building panel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention provides a curved metal folded construction board. The present invention relates to a curved construction temporary that allows rainwater to flow down well at the bottom part and that can be curved to an appropriate curvature in an extremely orderly and reliable manner.

[Conventional technology and its problems, etc.]

Recently, various construction boards with curved eaves tips have been used on the roofs of station platforms, factories, gymnasiums, etc. Among them, a long metal architectural board (commonly known as a "folded board") with a roughly V-shaped cross section has oblique parts formed on both sides of the bottom and connecting bent parts on both sides. ) Research and development are actively being carried out on curving methods, curving forming devices, and curved construction boards, etc., in which the longitudinal direction of the laminate is bent to an appropriate curvature when viewed from the side.

In order to form a curve in this way, depending on the height and depth of the cross section of the architectural board, the amount of shrinkage in the longitudinal direction is
Rib forming is done by press working, etc.

However, the height of the rib at the bottom is quite large because the bottom is located lower than the neutral axis.
This is because the amount of shrinkage in the longitudinal direction is required to be the largest.

As a result, rainwater accumulates in the grooves between the ribs, making it difficult to drain the water, leading to serious problems such as early corrosion of the rib-formed areas.

[Means for Solving the Problems] Therefore, the inventors have devised a solution to the above-mentioned problems (as a result of extensive research), the present invention has been developed by forming sloped parts outward and upward from both sides of the bottom part, and A connecting bent part is formed at the upper end of the inclined part, a large upward ridge is formed in the entire line width direction at the bottom thereof, and a pair of intermediate downward ridges formed between the large upward ridge, An upwardly directed protruding strip is formed, and the lower ends of both sides of the upwardly directed protruding stripe and the intermediate downwardly directed protrusive strip are continuously formed via a folded line whose height does not change substantially, and the inclined portion has a ridge extending upwardly. Protrusions that gradually become smaller were formed, and the longitudinal direction of each part was curved to an appropriate curvature.By forming a curved construction board, a metal folded construction board was curved.Rainwater at the bottom part This method solves the above-mentioned problems by making it possible to flow down the material well, and also to form a curve to an appropriate curvature in an extremely orderly and reliable manner.

[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 1011N.

A is a long metal folded construction board, which is used as a roof board or wall board of a steel frame or reinforced concrete structure. 2 is the bottom of the folded construction board, which has a substantially flat cross section, and slopes 2.2 are formed outward and upward from both sides of the bottom 1. This inclined portion 2.2 is formed with a relatively high height. Connecting bent portions 3.4 are bent at the upper ends of the inclined portions 2, 2, respectively.

There are a plurality of embodiments of the connecting bent portions 3.4, and in the first embodiment, as shown in FIGS. 1, 2, 5, etc., the connecting bent portions 3, 4 are Angular portions 3a and 4a each having a trapezoidal angular cross section are bent outward from the upper end of the inclined portion 2.2. In this case, the chevron portion 3a is coated with the chevron portion 4a of the adjacent folded construction board A.
One side is formed to be larger by approximately the thickness of the plate.

In addition, as a second embodiment of the connecting bending portion 3.4,
As shown in FIG. 8, the connecting bent portion 3 extends outward from the upper end of the inclined portion 2 of the bottom portion 1 (on the right side in FIG. 8).
A substantially horizontal top portion 3b is formed, and a lower ridge portion 3c is bent above the outer end of the top portion 3b. Further, the connecting bending part 4 has a substantially horizontal top part 4b formed outward from the upper end of the inclined part 2 on the other side of the bottom l (left side in FIG. 8), and above the outer end of the top part 4b. Then, while covering the lower part 3C, the part is joined. An upper part 4c is formed. Specifically, the lower part 3c is formed into an arc-shaped part that extends outward from the upper end of the vertical piece and then goes inward, and the upper part 4c extends inward from the upper end of the vertical piece. An arcuate portion is formed that bulges and extends outward, and an arcuate edge that extends downward from the outer end is formed.

The shape of the embodiment is not limited as long as the upper part 4c can be fastened to the lower part 3c in this way.

Moreover, as a third embodiment of the connecting bending parts 3 and 4,
As shown in FIG. 9, the connecting bent portion 3.4 has approximately horizontal top portions 3b, 4b extending outward from the upper end of the inclined portion 2.2.
is formed, and this top portion 3b.

Above the outer end of 4b, there are inverted portions 3d, 4d in which one top piece 3e faces inward and the other top piece 4e faces outward.
is formed in a bent manner.

In addition, as a fourth embodiment of the connecting bending portion 3.4,
As shown in FIG. 10, the connecting bending portion 3゜4 has substantially horizontal top portions 3b, 4 outward from the upper ends of the inclined portions 2, 2.
b is formed, and this top portion 3b.

Above the outer end of 4b, inverted portions 3d and 4d are bent such that the top pieces 3e and 4e face inward toward each other.

The folded plate-like building board A formed by the bottom part 1 inclined part 2, 2 connecting bent part 3.4 is made of a single long metal plate that is integrally formed by a multistage upper and lower roll forming machine. It is molded,
5. Upward large protrusion described below. Intermediate downward protrusions 6, 6 and upward protrusions 7. Those in which the protrusions 9 and the like are not bent are formed linearly in the longitudinal direction. In addition, each corner angle of the folded architectural board A is formed into a nearly square shape,
In some cases, it may be formed into an arc shape with a relatively small radius.

The large upwardly protruding ridge 5 is formed on the bottom part 1 to be curved upward (mountain-shaped) substantially in the width direction with a relatively high height.

A pair of intermediate downward protrusions 6, 6 are formed at the longitudinal center of the large upward protrusion 5. This intermediate downward protrusion 6
．． 6, the protruding side faces downward and has an arrow shape when viewed from above. An upward protrusion 7 is formed to bulge between the intermediate downward protrusions 6, 6, and the lower end of the upward protrusion 7 and the intermediate downward protrusion 6 are connected to each other via a folding line 8 whose height is substantially unchanged. It is formed continuously.

In particular, the height of the folding line 8 should remain approximately unchanged (approximately horizontal),
The formation of the intermediate downward protrusion 6 and the upward protrusion 7 will be specifically described in detail.

As shown in Fig. 3, the ridge line at the maximum height position of the upward large protrusion 5 is taken as the cross section, and the height from the bottom surface to the ridge line is h.
and on the ridgeline of the maximum height position of the upwardly directed protrusion 7 here. The length between the outer ends of the intermediate downward protrusions 6, 6 is L, the cross-sectional length of the ridge line of the intermediate downward protrusion 6 is ll, and the horizontal direction of the cross-section of the ridge line of the intermediate downward protrusion 6 (
If the length (in the X-axis direction) is 2□, and the angle between the horizontal direction (X-axis direction) and the cross section of the ridgeline of the intermediate downward protrusion 6 is θ, then the large upward protrusion is as shown in Fig. 3. The length of the ridgeline of the strip 5 in the horizontal direction is constant, and assuming that the length L between the outer ends of the intermediate downward protruding strips 6 and 6 is also constant, the intermediate downward protruding strip 6.6 is In order to bulge downward, the length f corresponding to the cross section of the ridge line of the intermediate downward protrusion 6 is lowered by a height h so as to bend downward to the bottom 1, and the height is If the bending line 8 is made to remain approximately unchanged, the horizontal length of the cross-section of the ridgeline of the intermediate downward protrusion 6 is reduced to 12, so the length of 100 points in FIG. Length in figure 3! , or it is necessary to expand it further. This becomes (lx l., that is, the intermediate downward protrusion 6,
Specifically, the length S to be extended by forming 6 is,
2 (21-1,), which is the above! ,-! . is equal to.

First of all, j! +=h/sinθ, it=h/lan
θ, and 5=2(ffi+j!z) =2 (h/sinθ−h/tanθ)=2h(1
−cosθ)/sinθ =2hsinθ/ (1+cosθ) −・−・−・・
...(1) Here, if θ is set to about 15 degrees to 30 degrees, it becomes 0.22 h to 0.27 h, and the point of the length Po is 0.22 to 0.27 times the height h. It is molded by double pressing and spreading, and any material that has some degree of ductility can be used satisfactorily.

The protrusion 9 is bent so as to bulge toward the outer or inner surface of the inclined portion 2.2, and the direction in which the protrusion 9 extends is perpendicular to the longitudinal direction of the folded construction board A. The protrusion 9 is oriented at an appropriate angle (for example, right angle, etc.) with respect to the reference line, and the protrusion 9 is formed so as to gradually become smaller as it goes upward.

Specifically, the cross section of the protrusion 9 is formed into a wave shape when continuous, or is formed into a substantially sawtooth shape when continuous (see the drawing). In reality, the cross section of the protrusion 9 is often wave-shaped. Furthermore, when viewed in a direction perpendicular to the surface of the inclined portion 2 on which the protrusion 9 is formed, the width thereof is formed so as to gradually become narrower as it goes upward (see drawing).
By forming the protrusion 9, if the length of the inclined portion 2 in the longitudinal direction has the requirement that the amount of contraction in the length in the longitudinal direction gradually decreases as it goes upward, the width of the ridge 9 can be formed so that it gradually increases as it goes upward. Sometimes. There are a plurality of embodiments in which the protrusion 9 is provided, and how it is provided is determined experimentally depending on the position of the neutral axis of the folded architectural board A, the material, etc.

That is, in the embodiment in which the protrusion 9 is provided, it is provided over the entire length of the inclined portion 2 from the lower end to the upper end thereof (see FIG. 1). Further, the protrusion 9 may be provided from the lower end of the inclined part 2 to near the upper end thereof, or may be provided from the lower end of the inclined part 2 to a position halfway between the connecting bending parts 3 and 4.

The large upward protrusion 5 and the protrusion 9 are, first, the large upward protrusion 5 faces upward, the protrusion 9 faces outward, the protruding sides are different, and they are continuous through a substantially ■-shaped folded line. (See FIGS. 1 to 4).

In addition, the upward large protrusions 5 and 9 are formed continuously with the upward large protrusions facing upward, the protrusions 9 facing inward, and the protruding sides being the same (see Figure 9). .

Such a large upward ridge 5. Intermediate downward protrusion 6°6 and upward protrusion 7. The protrusions 9, 9, etc. are formed by press processing after forming the folded plate-like architectural board A that is linear in the longitudinal direction,
Only after they are bent can their longitudinal direction be bent to a desired curvature. Its large upward ridge 5. Intermediate downward protrusion 6°6 and upward protrusion 7. The protrusion 9.9 is
They are formed continuously in the longitudinal direction of the folded architectural board A, or are formed at appropriate intervals. Even when formed continuously, curved portions with appropriate curvatures may be provided at the end portions (for example, at the eaves) of the linear folded architectural boards A (see Figure 1), or as appropriate. Even when they are provided at intervals of , they may be provided over the entire longitudinal direction of the folded architectural board A and formed into an arch shape with a large curvature.

In the curved construction tent of each of the above embodiments, if the bottom 1 is wide, one or more (one peak in FIG. 7) bulges 10 having a trapezoidal cross-section are formed in the middle thereof. has been done. The sloped surfaces on both sides of this bulging portion 10 have the same height and the same slope angle as the sloped portion 2, and the sloped surfaces are also provided with protrusions similar to those formed on the sloped portion 2. ing(
(See Figure 7). In addition, in the curved construction board of each embodiment, when the connecting bent portions 3.4 are chevron portions 3a, 4a (see FIGS. 1 and 2), an inclined piece on the outside of the chevron portions 3a, 4a. An outer end protrusion 9a is formed on the outer end. Also,
Although not shown, a heat insulating material such as foamed synthetic resin may be attached to the back surface of the curved construction board.

To explain the construction of roofs, walls, etc. using the curved construction board, the curved construction board is placed between adjacent metal fittings, and at the same time, the longitudinal direction of the curved construction board is connected to the structure of the main building etc. The connection bending part 3 of the curved building board at the front (front position) and the adjacent (next) curved building board The connecting bending portion 4 is connected and fixed, and these steps are repeated one after another to form a curved eave portion and the like.

In the figure, 11 is a hanger material, and 12 is a cap material.

〔Effect of the invention〕

In the present invention, an inclined part 2.2 is formed outwardly upward from both sides of the bottom part 1, and connecting bent parts 3 and 4 are respectively formed at the upper end of the inclined part 2.2. A large upward protrusion 5 is formed in the entire width direction, an upward protrusion 7 is formed between a pair of intermediate downward protrusions 6 and 6 formed in the middle of the large upward protrusion 5, and the upward protrusion 7 is formed. . A strip 9 was formed, and the longitudinal direction of each portion thereof was curved to an appropriate curvature. The curved construction board has the following effects: firstly, rainwater can easily flow down from only one location on the bottom, secondly the curve can be formed in an extremely orderly manner, and thirdly it can be manufactured at low cost.

To explain these effects in detail, first, on the bottom l,
While forming the large upward protrusion 5 in the entire width direction, an upward protrusion 7 is formed between the pair of intermediate downward protrusions 6, 6, and the lower ends of both sides of the upward protrusion 7.7 and the middle By forming the downward protrusion 6.6 continuously through the folded line 8.8 whose height does not change, the presence of the upward large protrusion 5 on the bottom 1 allows the adjacent upward large protrusion to 5. Rainwater will accumulate between 5 and 5, but since the both ends of the large upward ridge 5 are treated through the folded line 8 whose height remains almost the same, the rainwater will collect at the 8 folded lines. rainwater flows downward from the top, and does not collect on the large upward ridge 5, and does not corrode the curved bottom 1 (which can withstand long-term use. In this way, the bottom There is a big effect in places where rainwater is treated in only one place.

In the present invention, in particular, the upward protrusion 7 is continuously formed between the pair of intermediate downward protrusions 6, 6 formed in the middle of the large upward protrusion 5, via the folded line 8 whose height does not change substantially. In general, it is extremely difficult to form a folding line 8 of almost constant height on the bottom part 1 made of a metal plate with low ductility, which means that there is a risk of breakage or damage during molding.
In the present invention, the large upward protrusion 5 is on the upper side, the intermediate downward protrusion 6 is downward, and the upward protrusion 7 is upward, and these are formed alternately, so that the height thereof remains almost unchanged. The curve 8 can also be sufficiently contracted in the longitudinal direction of the bottom l, and in order to form the intermediate downward protrusion 6, it is true that the members constituting the upward protrusion 7 must be slightly extended. However, even a galvanized iron plate can be formed relatively easily with the structure of the present invention.

In addition, the bottom portion 1 and the inclined portions 2, 2, where a large compressive bending stress occurs when curved, are provided with large upward ridges 5°, middle downward ridges 6.6, and ridges 9, 9 that gradually become smaller as they move upward. Furthermore, the above-mentioned folding line 8, whose height remains almost the same, also shrinks, and as a result, a considerably large amount of shrinkage can be given to the folded architectural board A in the longitudinal direction, and as a whole, the longitudinal direction It is possible to actively give an appropriate amount of shrinkage in the direction and height according to the height, and it is possible to prevent any compressive stress etc. from being generated in the bottom part 1 slope part 2.2, and the distortion etc. due to this can be avoided. This does not occur, and the inclined portion 2° 2 bottom portion 1 near the neutral axis of the cross section and below this can be neatly curved. As this curvature is formed, the upper connection bending portions 3 and 4 can also be curvatured in an orderly manner.

As mentioned above, the major feature is that the curved shape is well formed and rainwater is treated at one location on the bottom. In addition, by being able to form a curve to a desired curvature, the troublesome trouble of having to butt and secure another object to the eaves end is eliminated, and the eaves end construction can be done extremely simply and quickly.

Furthermore, the structure of the present invention can be solved by improving only the bottom part 1, and has the advantage of being extremely simple, easy to manufacture, and able to be provided at low cost.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Figure 1 is a perspective view of the invention, Figure 2 is a developed plan view of the main part of Figure 1,
Figure 3 is a sectional view of Figure 2 ■-■, Figure 4 is Figure 2 IV
-TV sectional view in the direction of the arrow; FIG. 5 is an enlarged perspective view of the main part of FIG. 1;
FIG. 6 is a cross-sectional view taken along the arrows of FIG.
The figure is a cross-sectional view of another embodiment of a curved construction board. DESCRIPTION OF SYMBOLS 1... Bottom part, 2... Inclined part, 3.4... Connection bending part, 5... Upward large protrusion, 6... ...Middle downward protrusion, 7...
...Upward protrusion, 8...Folding line, 9
...Protrusion.

Claims (1)

[Claims] (1) A sloped portion facing outward and upward from both sides of the bottom portion is formed, a connecting bent portion is formed at the upper end of the sloped portion, and a large upward ridge is formed on the bottom portion of the bottom portion in the entire width direction; An upward protrusion is formed between a pair of intermediate downward protrusions formed in the middle of the large upward protrusion, and the lower ends of both sides of the upward protrusion and the intermediate downward protrusion are bent at substantially the same height. A curved architectural board, characterized in that the inclined part is formed with a protrusion that gradually becomes smaller as it goes upward, and the longitudinal direction of each part is curved to an appropriate curvature.