JP2587343Y2 - Seamless structure of curtain wall with flat R - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curtain-free structure of a curtain wall with a flat surface R for preventing wrinkles during roll bending. In addition, the projection with a plane R here means with a horizontal plane.
It means that it is arc-shaped.

[0002]

2. Description of the Related Art A blind eye in a curtain wall has a complicated cross-sectional shape due to securing design and strength. Therefore, in many cases, the extrusion is performed by an extrusion process that can easily process a complicated shape. FIG. 4 is a sectional view showing a blind structure of a conventional curtain wall. Transom 1 chamber outer side sectional rectangular outer transom section 3, the indoor side is a internal transom portion 5 of the cross rectangular shape, vertically central portion and the outer transom 3 and the inner transom section 5 And flat intermediate part 7
Are connected by The stitch 1 is manufactured by extruding an outer stitch 3, an inner stitch 5, and an intermediate stitch 7 integrally. In the extrusion process, since a material (a heated billet) is extruded at a high pressure through a die, a product having a complicated shape can be obtained densely and strongly.

The lower end of the glass 11 is inserted into a gap 9 between the outer blind part 3 and the inner blind part 5 above the middle blind part 7, and a glass gap is provided between the lower end of the glass 11 and the gap 9. The container 13 is filled to maintain watertightness. Similarly, the upper end of the glass 15 is inserted below the intermediate seamless portion 7, and the glass 15 is kept watertight by the glass seal 13. A drain hole 17 is formed in the outer blind portion 3 above the intermediate blind portion 7 on the gap 9 side, and the drain hole 17 communicates the gap 9 with the inside of the outer blind portion 3. In addition, a drain hole 19 is formed in the lower part of the outer tubular portion 3 having a square tubular shape, and the drain hole 19 communicates the inside of the outer blind portion 3 with the outside. Therefore, when the glass seal 13 is cut, the rainwater flowing from the cut enters the gap 9 below the glass seal 13 and is guided from the inside of the blind 1 to the outside through the drain holes 17 and 19. It is.

[0004] As described above, considering the design, strength, and the drainage path of rainwater, the eyeless 1 having a complicated shape is:
It is formed integrally by extrusion.

[0005]

[Problems to be solved by the present invention]
The eyelet 1 is made of an outer eyelet 3, an inner eyelet 5, and an intermediate eyelet 7 integrated with each other. By the way, the blind 1 has an R shape depending on the design of the building, that is, the center of curvature (the temporary
(Center) can be bent at substantially the same level into an arc shape existing on the indoor side . In bending, the outside of the material expands due to tensile stress and the inside shrinks due to compressive stress. In the vicinity of the center, there is a neutral surface without expansion and contraction, that is, in which no stress is generated. The material becomes thinner outside the neutral surface and becomes thicker inside. Then, the amount of the change increases as the distance from the neutral surface increases (the width of the material increases) and the bending radius decreases. Therefore, the width of the blind 1 in which the outer blind portion 3, the inner blind portion 5, and the middle blind portion 7 are integrated as in the related art becomes wider, and wrinkles are easily generated during bending, and small In the case of a bending radius, there is a problem that they cannot be machined because they become more remarkable.

The present invention has been made in view of the above circumstances, and as in the prior art, it is possible to secure a drain path as well as to perform a clean bending process and to prevent a wrinkle from occurring even with a small bending radius. The object of the present invention is to provide an eyeless structure of a metal plate, thereby improving workability in a special shape.

[0007]

In order to achieve the above-mentioned object, the curtainless structure of the curtain wall with a flat surface according to the present invention has an arc shape in which the center of curvature is on the indoor side. bending is performed plan R Tsukeka - Ten'wo - the transom structure of Le
In the above, the eyes are located outside the room, inside the room, and inside the room.
Separately formed outer stitches, inner stitches and intermediate stitches that make up the three parts of the interspace are connected to each other at their joining surfaces.
The intermediate stitch is formed into a tubular shape, and the intermediate stitch is opened to the outside of the room to seal the joint surface with the outer stitch. The seal groove
And a seal material is inserted into the seal groove . In another preferred aspect, the method further comprises:
In order to seal the joint surface with the internal eye,
A seal groove opened on the indoor side of the indoor side,
Make sure that the seal material is inserted into the seal groove
Features.

[0008]

[Action] The blind eye is divided into three in the indoor and outdoor directions (estimated direction) ,
When the bending has been performed, external transom, an intermediate transom, smaller than in the transom distance (width of the member) is integrally molded from each of the neutral surface inside the transom, and dispersed for each member Stress occurs, and the amount of local change caused by the stress decreases,
Wrinkles are less likely to occur.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
An embodiment of the eyeless structure of the nozzle will be described with reference to the drawings. FIG.
FIG. 2 is a sectional view showing the blind structure of the curtain wall with a flat surface R according to the present invention, and FIG. 2 is a sectional view showing the fitted state.

[0010] A positioning projection 23 is projected from the rear surface of the square tubular outer stitch 21 on the indoor side, and the outer stitch 21 is integrally formed as a single unit. A square tubular intermediate stitch 25 positioned by the projection 23 is in contact with the rear surface (the indoor side surface) of the outer stitch 21. Outside eyes 2 of middle eyes 25
A seal groove 27 is formed on the contact surface with the seal groove 1 and the seal groove 2 is formed.
A partition 29 is formed on the side of the opening 7 (the bottom of the groove). A stop hole 31 is provided at the center of the outer blind 21 in the vertical direction.
The set screw 33 inserted into the stop hole 31 is screwed to the partition wall 29 of the intermediate stitch 25, and the external stitch 21 and the intermediate stitch 25 are connected. Therefore, the set screw 33 is screwed to the partition wall 29 while penetrating the seal groove 27. Then, the seal material 35 is filled in the seal groove 27, and the seal material 35 is
Sealing is made between 1 and the intermediate stitch 25 and the set screw 33 to ensure watertightness. At the rear end of the middle stitch 25 on the indoor side, a fixing piece 37 parallel to the rear surface is provided upright.
The intermediate stitch 25 is integrally formed to be a single body.

A rectangular tubular inner stitch 39 is in contact with the rear surface of the middle stitch 25, and a positioning projection 41 is provided on the surface of the inner stitch 39 on the side where the middle stitch 25 is in contact. I have. The inner stitch 39 is positioned by applying the projection 41 to the middle stitch 25. Internal transom 39 is positioned at a predetermined position by being screwed into the fixing pieces 3 7 of the intermediate transom 25 is adapted to be connected to the intermediate transom 25. Further, the lower portion of the rear side of the intermediate stitch 25 on the indoor side and the inner stitch 39 are welded (part a in FIG. 1) to improve the connection strength. A seal material 35 is applied to the welded portion to ensure watertightness between the intermediate stitch 25 and the inner stitch 39. The inner blind 39 is integrally formed to be a single body.

Therefore, the outer stitch 21, the middle stitch 25, and the inner stitch 39, each of which is formed as a single unit, are connected and fixed to form one stitch 43. In other words, the stitches 43 are constituted by separate outer stitches 21, intermediate stitches 25, and inner stitches 39 divided in the indoor and outdoor directions.

A drain hole 45 is formed in the rear surface of the external stitch 21 to which the intermediate stitch 25 is abutted, and the drain hole 45 drains rainwater (see FIG. 2) flowing into the intermediate stitch 25 to the outside. 21
It is designed to lead inside. A drain hole 47 communicating with the outside is also formed in the inner wall inside the external mesh 21.
Is designed to guide rainwater flowing into the inside from the drain hole 45 to the outside. Both ends of the inner blind 39 are closed to prevent rainwater flowing from a screw hole for fixing the fixing piece 37 from flowing out through the hollow portion 49 (6 in FIG. 2). . A drain hole 51 for guiding rainwater flowing into the hollow portion 49 onto the intermediate stitch 25 is formed in the fixing piece 37 and the inner stitch 39.

In the seamless structure of the curtain wall with the plane R constructed as described above, when the bending process is performed, the outer mesh 21, the middle mesh 25, and the inner mesh are formed inside and outside the room. , the distance from the neutral surface is smaller (the width of the material is smaller) as compared with the eyelet that is integrally molded,
Stress is generated in each member unit, the amount of change is reduced, and wrinkles are less likely to occur. In addition, since each member is tubular, a groove is provided in the bending mold, the contact with the member is increased, and the outside is restrained, so that measures to prevent wrinkles can be easily taken. Therefore, watertightness can be ensured as in the conventional case, and furthermore, it is possible to perform a bending process with a smaller bending radius more neatly than the conventional blind stitch.

FIG. 3 is a sectional view showing a blind structure of a curtain wall with a flat surface R according to another embodiment. In the above-described embodiment, the seal groove 27 is formed only on the contact surface of the intermediate stitch 25 with the outer stitch 21 side. However, when the screw strength due to the glass load or the wind pressure load may be relatively small, As shown in FIG. 3, the seal groove 27 is formed before and after the intermediate stitch 53, and a pair of upper and lower fixing pieces 55 are formed.
May be fixed by a waterproof material screw 57. In this embodiment, similarly to the above, it is possible to cleanly perform bending with a small bending radius and eliminate welding work.
Since connection is possible only by screw fixing, workability can be improved.

The seamless structure of the curtain wall with the flat surface R according to the above-described embodiment has the same effect as described above even when used for a blind sash or a top light.

[0017]

As described above in detail, according to the seamless structure of the curtain wall with the flat surface R according to the present invention, the outer blind, the middle blind, and the inner blind are separately provided. Since they are connected and fixed in the indoor and outdoor directions, when bending is performed, the amount of local change caused by stress is reduced, and wrinkles can be less likely to occur. In addition, since a seal groove is formed in the middle stitch to seal a gap with another stitch, water tightness at the connecting portion can be maintained. As a result, clean bending can be performed, wrinkles do not occur even with a small bending radius, workability in a special shape can be improved, and watertightness can be maintained as in the related art.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a seamless structure of a curtain wall with a plane R according to the present invention.

FIG. 2 is a cross-sectional view illustrating a closed state of the blind structure of the present invention.

FIG. 3 is a cross-sectional view illustrating another embodiment of the seamless structure of the present invention.

FIG. 4 is a sectional view showing a blind structure of a conventional curtain wall.

[Explanation of symbols]

 21 External blind 25 Intermediate blind 27 Seal groove 39 Internal blind

Claims (2)

(57) [Scope of request for utility model registration] 1. A <br/> an arc shape as the center of curvature is located on the interior side B - plane R Tsukeka Le bending is performed - Ten'wo - in transom structure of Le, the transom thereof 3 on the outside, the inside of the room and the middle part between them
The separately formed outer stitches, inner stitches, and middle stitches forming the two parts are connected and fixed to each other at their joint surfaces.
The intermediate stitch is formed in a tubular shape, and the intermediate stitch has a seal groove open to the outside on the outdoor side to seal a joint surface with the external stitch. And said
A seamless structure of a curtain wall with a flat surface R, characterized in that a seal material is inserted into the seal groove. 2. The method according to claim 1 , further comprising the step of:
Opened to the indoor side to seal the joint surface of
It has a seal groove, and seals in the seal groove opened to the indoor side.
2. The material according to claim 1, wherein a metal member is inserted.
Of a curtain wall with a flat surface R.