JPH04108983A - Shutter curtain for building - Google Patents

Abstract

PURPOSE:To eliminate interlocked linkage and provide a shutter of low noise by pressing an engagement side, which is protrudingly formed to indoor side at both the upper and lower side end parts of one of slats, into an engagement groove part for engagement and a serial connection. CONSTITUTION:A main slat 4 is formed into a roughly U shape to indoor side, and both leg parts are also turned up and bent toward outdoor side to form hair pin groove-shaped engagement groove parts 4a, 4b each outdoor side of which is open. At, the respective outer sides of the engagement groove parts 4a, 4b, an engagement hole 4c is drilled. Then the lower engagement side 5b of a sub slat 5 is pressed into the upper engagement groove part 4a of the main slat, 4 for engagement until an engagement piece 5c engages with an engagement, piece 4c, and the upper engagement side 5a of the sub slat 5 is pressed into the lower engagement groove part 4b in the same way as the above for engagement and a serial of connection. As a result, a shutter curtain 1 formed in serial is wound around a winding drum 2 by elastically-deforming the sub slat 5 for curving.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a shutter curtain for buildings installed in buildings such as houses and buildings.

[Prior art and problems to be solved by the invention] Generally,
For example, shutter curtains for buildings of this type are wound around a winding drum placed above the opening, and are guided by guide rails formed on both the left and right sides of the opening to open and close in the vertical direction. It has become common to do so. By the way, the shutter curtain used for this purpose needs to be formed so that it can be curved because it is wound around a winding drum from a straight position along a guide rail, so conventionally it is formed by bending a band-shaped plate material. The slats were interlocked together to form a shutter curtain.

However, in this case, since there is inevitably a gap and play in the interlock joint, there is a problem that noise is generated when opening/closing or when exposed to wind during closing.

Therefore, attempts have been made to eliminate the gap in the interlock joint, but these methods have the problem of complicating the structure of the interlock joint, and are therefore impractical.

[Means for Solving the Problems] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing a building shutter curtain that can eliminate these drawbacks. In a shutter curtain for a building whose opening is opened and closed in the vertical direction guided by a rail, the shutter curtain is formed by main slats 1 to 1 made of a rigid material.
and a sub-slat made of an elastic material, and a fitting groove part that protrudes toward the indoor side and is open on the outdoor side is provided on the upper and lower both edges of one of the adjacent slats. The slats are formed on the upper and lower edges of the other slat, and the fitting sides protruding toward the indoor side are pushed into these fitting grooves and are connected in a continuous manner.

With this configuration, the present invention eliminates the interlock coupling and makes it possible to obtain a low-noise shutter.

[Embodiment] Next, an embodiment of the present invention will be described based on the drawings. In the drawing, 1 is a shutter curtain for a building shutter, and the shutter curtain 1 is wound around a ram 2 around a roll 1 installed above the opening, and guide rails provided on the left and right sides of the opening. 3, it opens and closes up and down.

The shutter curtain 1 includes a main slat 4 made of a rigid material such as metal such as steel or aluminum, or synthetic resin used in existing shutter curtains, and an elastic material such as spring steel or synthetic resin. It is constructed by alternately connecting sub-slats 5 made of a material having .

In other words, in this embodiment, the main slats 1-4 are formed into a substantially U-shape facing indoors, and both legs are further bent back toward the outdoors to form a hairpin groove with the outdoor side open. Fitting grooves 4a and 4b (for convenience, the upper one is referred to as the two-side fitting groove 4a, and the lower one is referred to as the lower fitting groove 4b) are formed. Engagement holes 4C are bored at the outer sides of the engagement grooves 4a, 4b at a pitch A. ) is set to B.

On the other hand, the secondary slat 5 is bent into a substantially U-shape, and its fitting sides 5a and 5b (for convenience, the upper side is referred to as the upper fitting side 5a, and the lower side is referred to as the lower side). Fitting side 5b
An engaging piece 5c is formed by stamping so that its tip is on the crotch side and protrudes toward the opposite side of both fitting sides.

The pitch of the engagement pieces 5c is set to be approximately half (B/2) of the length of the engagement hole 4c.

Then, the shutter curtain 1 connects the lower fitting side 5b of the sub slat 5 to the upper fitting groove 4a of the main slat 4 with the engaging piece 5.
The upper fitting side 5a of the sub-slat 5 is pushed into the lower fitting groove 4b in the same way until it engages with the engagement hole 4c, thereby forming a continuous shape. However, the shutter curtain 1 formed in a series in this manner is wound around the winding tram 2 by elastically deforming the sub-slats 5 and curving them.

In the embodiment of the present invention configured as described above, the opening and closing of the opening is achieved by raising and lowering the shutter curtain 1 guided by the guide rail 3, but the shutter curtain 1 is moved by a conventional interlock connection. Unlike the case where rigid slats are connected together in a bendable manner, there is no gap between the slats, and as a result, there is no noise caused by the slats colliding with each other during opening/closing operations or when exposed to wind. The occurrence of noise can be reliably avoided, and a quiet, low-noise building shutter can be obtained. Furthermore, since there is no gap between the connecting parts of the slats, it has the advantage of being excellent in fire prevention, smoke prevention, and sound insulation.

Moreover, in this case, when winding the winding 1 to the ram 2, the elastic and flexible sub-slat 5 is bent instead of the rigid main slat 4, so that the conventional interlock connection is not possible. Similar to the above, it can be wound into a spiral shape without any problems.

Furthermore, in this case, since the connecting ends of each slat 4.5 are not exposed to the outside, it not only has a favorable appearance, but also has the advantage of being very convenient in terms of crime prevention and rust prevention. Moreover, as shown in Figure 4 Y and Z, this product can be bent to accommodate both forward and reverse winding methods, so it can be handled in the same way as an interlocking type shutter curtain. Become,
This should not be a problem.

In addition, in this case, the engagement piece 5c is fitted into the engagement hole 4c, and displacement in the left and right direction is restricted, so the slats do not shift in the left and right directions unlike in the conventional interlock connection. There is also the advantage that there is no need to attach end fittings.

It should be noted that the present invention is of course not limited to the above-mentioned embodiments, and the present invention is not limited to the above-mentioned embodiments, and may be applied to an embodiment in which the fitting groove portion and the fitting side protrude in the horizontal direction, as in the second embodiment shown in FIG. Alternatively, as in the third embodiment shown in FIG. 7, the fitting groove portion and the fitting side may be inclined so that they are lower on the indoor side.

Further, the means for preventing the engagement groove from being pulled out is not limited to the one in which the engagement piece is fitted into the engagement hole and is locked therein, and general stopping means such as rivets may be used. As in the fourth embodiment shown in Fig. 8, the edge of the main slat 4 is further folded back toward the indoor side to form a protrusion, and the engaging piece 5c formed on the sub-slat 5 is locked thereto. It is also good.

Furthermore, patterns such as those shown in FIG. 9 (where solid lines represent main slats and broken lines represent sub-slats) may also be used. In other words, the slat surface of the main slat 4 has a substantially semicircular arc shape (Fig. 9A), the slat surface has a substantially corrugated plate shape (Fig. 9B), and the slat surface has a substantially zigzag shape. (Fig. 9C), slats with roughly uneven slats (Fig. 9D), and slats with various patterns on the slat surface. −5 side, and combinations of these various main and sub slats,
Moreover, a sub-slat 5 is interposed between a plurality of main slats 4 (three in the drawing) connected to each other (Fig. 9E), and conversely, a sub-slat 5 is interposed between a plurality of main slats 4 connected together (three in the drawing), and conversely, a plurality of sub-slats 5 are connected together. Main slats connected (Fig. 9F), and
The width of each of the main and sub slats (width in the direction of the guide rails, not in the direction between the opposing guide rails) can be set arbitrarily if necessary, and the width of the sub slats 5 is larger than that of the main slats 4. Various types can be adopted, including one with a wider width (Fig. 9G).

Furthermore, as shown in the pattern diagram of FIG. 10, the storage of the shutter curtain is not limited to winding the shutter curtain in a spiral shape around the winding drum as in the first embodiment described above, but instead using the spiral storage rail 8. Items designed to be stored (Figure 10A)
), and one that is stored in a horizontal storage rail 9 via a curved rail from the guide rail 3 (FIG. 10B).

[Operations and Effects] In summary, since the present invention is constructed as described above, the shutter curtain has main slats 1- formed of a rigid material and sub-slats 1- formed of an elastic material. By connecting the slats in a series, it is possible to eliminate the interlocking joints that were previously required.Therefore, there is no gap between adjacent slats, so when opening and closing the slats or when exposed to wind, etc. It is possible to avoid the generation of unpleasant noise caused by the slats rubbing against each other or colliding with each other, and it is possible to significantly reduce the noise and make it quiet. Furthermore, since there is no gap between adjacent slats, it can greatly contribute to improving fire prevention, smoke prevention, and sound insulation.

Furthermore, these slats are connected by pushing and fitting the fitting side of the other slat into the fitting groove formed in one of the adjacent slats, so the connecting end can be used outdoors. Not only is it not exposed to dirt, which is good in terms of appearance, but it also has the advantage of being very convenient in terms of security and rust prevention, and is compatible with both forward and reverse winding methods. Since it can be bent, it can be handled in the same way as an interlocking type shutter curtain, so there is no problem.

[Brief explanation of the drawing]

The drawings show an embodiment of the building shutter curtain according to the present invention, in which Fig. 1 is a schematic front view of the building shutter, Fig. 2 X and Y are cross-sectional views and plan views of the main slats, Figure 3
Figs. second,
Cross-sectional views of shutter curtains showing third and fourth embodiments, Figures 9A-G are pattern diagrams of shutter curtains showing other embodiments, and Figures 10A and B are other embodiments of shutter curtains. It is a pattern diagram showing the storage state of the. In the figure, soil is the shutter curtain, 2 is the winding drum, and 3
4 is a guide rail, 4 is a main slat l-14a, 4b is a fitting groove, 5 is a sub-slat, and 5a, 5b are fitting sides. Patent applicant: Sanwa Shutter Industry Co., Ltd. 108983 ('/)

Claims (1)

[Claims] In a shutter curtain for a building that opens and closes an opening in the vertical direction guided by a vertical guide rail, the shutter curtain is made of a main slat made of a rigid material and an elastic material. A sub-slat is used, and at the top and bottom both edges of one of the adjacent slats, protrudes toward the indoor side,
It is characterized by forming fitting grooves that are open on the outdoor side, and connecting the fitting sides in a series by pushing and fitting into these fitting grooves the fitting sides formed on the top and bottom edges of the other slat that protrude toward the indoor side. Shutter curtains for buildings.