JPH04111890A - Shutter curtain for building - Google Patents

Abstract

PURPOSE:To eliminate interlocked coupling sections and to suppress noise by connecting a coupling section of a main slat formed of a material having rigidity to a coupling section of an auxiliary slat formed of a material having elasticity together as a unit. CONSTITUTION:A lower fitting side 5b of an auxiliary slat 5 is pushed and fitted into an upper fitting channel 4a of a main slat 4 and, at the same time, an upper fitting side 5a of the auxiliary slat 5 is pushed and fitted into a lower fitting channel 4b together as a unit. An upper fitting coupling section or a precedent fitting binding section on the side wound on a winding drum 2 is coated with a cover body 9 having approximately the same length as the longitudinal one of the slat so that it covers the front end of the fitting coupling section from the indoor side.

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,
This type of shutter curtain for buildings is wound around a winding drum placed above the opening, and is 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 something like this. By the way, the shutter curtain used for this needs to be formed so that it can be disguised in a straight position along the guide rail and in a spiral position when wound around the winding drum. The shutter curtains were formed by interlocking the slats together. However, in this case, there is inevitably a gap and play in the interlock joint, so there is a gap that generates noise when opening/closing or when exposed to wind when 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 building shutter curtain that is wound around a winding drum and opened and closed by being guided by a guide rail, the shutter curtain is made of a main slat made of a rigid material and an elastic material. The upper and lower edges of each slat are
The device is characterized in that connecting portions protruding toward the indoor side are formed, these connecting portions are overlapped and connected integrally, and these connecting portions are covered with a cover body from the indoor side.

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

[Example] Next, an example of the present invention will be described based on the drawings. In the drawing, reference numeral 1 denotes a shutter curtain for a building shutter, and the shutter curtain 1 is wound around a winding drum 2 installed above an opening, and is wound around a guide rail 3 provided on the left and right sides of the opening. It is designed to open and close up and down when guided.

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 slat 4 is formed into a substantially U-shape facing indoors, and both legs are further bent back toward the outdoors to fit into hairpin grooves with the outdoor side open. Fitting grooves 4a, 4b (For convenience, the upper one is called the upper fitting groove 4a, and the lower one is called the lower fitting groove 4b.
be distinguished as A fitting portion (corresponding to the connecting portion of the present invention) is formed, and the fitting groove portions 4a, 4
b has a slope that is higher on the indoor side and lower on the outdoor side, and its tip is curved in an R shape.

Pinch A is provided on the outer side of these fitting grooves 4a and 4b.
The length of the engagement hole 4C in the left-right direction (the length in the pinch direction) is set to B.

On the other hand, the sub-slat 5 is bent into a substantially U-shape, and has fitting portions 5a and 5b (
For convenience, the upper part is referred to as an upper fitting part 5a, and the lower part is referred to as a lower fitting part 5b. Similar to the fitting grooves 4a and 4b of the main slat 4, the connecting portions (corresponding to the connecting portions of the present invention) are sloped so that the indoor side is higher and the outdoor side is lower. Further, 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 portion 5b of the sub-slat 5 to the upper fitting groove portion 4a of the main slat 4 with the engagement piece 5.
The upper fitting part 5a of the sub-slat 5 is pushed into the lower fitting groove part 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 drum 2 by elastically deforming the sub-slats 5 and curving them.

In this case, the upper fitting connection part with the slat surface portion 5d of the sub-slat that undergoes elastic deformation, that is, the fitting connection part with the sub-slat 5 as a reference, is first wound on the winding drum 2. A cover body 9, which is formed to have approximately the same length as the longitudinal direction of the slat and has a substantially U-shaped cross section, is placed over the fitting connection portion on the side to be fitted so as to cover the tip portion from the indoor side. There is.

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 on the winding drum 2,
Since the elastic and flexible sub-slats 5 are curved instead of the rigid main slats 4, winding can be carried out in a spiral shape without any problem, similar to the conventional interlock connection.

In this way, the shutter curtain 1 is wrapped by the elastic curvature of the sub-slats 5, and the fitting sides 5a and 5b fit into the fitting grooves 4a and 4b as shown in FIG. 4Y. The distal end of the fitting connection part is configured so that the upper side across the slat surface part 5d of the elastically deformable sub-slat 5, that is, the side where the cover body 9 is crowned on the connection part, is the lower fitting part to be wound later. Because it has a smaller diameter than the tip of the connecting part,
In the shutter curtain 1, the sub-slats 5 are deformed in a curved manner while the tip of the upper fitting connecting portion that is previously wound is in contact with and supported by the winding drum 2 (or the shutter curtain that has already been wound). It turns out. At this time, the tip of the lower fitting connection part that is wound later moves in a state where it is not in contact with the winding drum 2 (or the shutter curtain that has already been wound), and the lower It is possible to reliably prevent problems such as the tip of the side fitting connection portion rubbing against the winding drum 2 and causing abnormal noise or damage to the slat.

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. In addition, this type of interlock has the advantage of being excellent in preventing rain when closed, and the engaging piece 5C is fitted into the engaging hole 4C to prevent deviation in the left and right direction. There is also the advantage that there is no need to attach end fittings to prevent the slats from shifting to the left or right, as is the case with combined slats.

It should be noted that the present invention is of course not limited to the above-mentioned embodiments, and the cover body may not be provided over the entire length of the slat fitting connection portion, but may be provided at a plurality of locations. Alternatively, the pattern shown in FIG. 6 (in which the solid lines represent the main slats and the broken lines represent the sub-slats) may be used. In other words, both the main and sub-slats are simply U-shaped, and these slats are connected with appropriate fixing means such as screws, rivets 6, or welding (Fig. 6A), and the bent sides are the same as those described above. The same pattern as in the example, but with horizontal protrusions (
Fig. 6B), the bent sides have the same pattern as in the first embodiment, but the connecting portions of the slats are connected using general fastening means such as rivets 6 (Fig. 6C), The main slat 4 is approximately Σ-shaped (Fig. 6D), the main slat 4 is approximately semicircular arc-shaped (Fig. 6E),
The slat surface of the main slat 4 has a substantially corrugated plate shape (Fig. 6F), the slat surface of the main slat 4 has a substantially zigzag shape (Fig. 6G), etc. Those with patterns, and even these patterns on sub-slats 5
Various types can be adopted, such as those applied to the sides.

[Operations and Effects] In summary, since the present invention is constructed as described above, the shutter curtain has a main slat connecting portion made of a rigid material and an elastic material made of an elastic material. By integrally connecting the connecting part of the sub-slat, it is possible to eliminate the interlock connecting part that was previously required.
Therefore, there is no gap between adjacent slats, and it is possible to avoid unpleasant noises caused by the slats rubbing against each other or colliding with each other during opening/closing operations or when exposed to wind. This means that the noise can be significantly reduced, making it quieter. Furthermore, since there is no gap between adjacent slats, it can greatly contribute to improving fire prevention, smoke prevention, and sound insulation.

Furthermore, the connecting ends of the main and sub-slats are not exposed to the outside, which is advantageous not only in terms of appearance but also in security and rust prevention.

Furthermore, in the shutter curtain according to the present invention, at least the connecting portion that is wound around the winding drum first among the connecting portions based on the sub-slat is covered with a cover body, so that the shutter curtain is covered with a cover body during opening and closing operations. It is possible to prevent abnormal noise from being generated and to reliably avoid damage to the winding drum and the shutter curtain that has already been wound.

[Brief explanation of drawings]

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
Figures X and Y are side views showing the shutter curtain in a straight state and a rolled state, respectively.
Figures A to G are pattern diagrams of shutter curtains showing other embodiments. In the figure, 1 is a shutter curtain, 2 is a winding drum, 3
is a guide rail, 4 is a main slat, 4a, 4b is a fitting groove, -゛ 5 is a sub-slat, 5a, 5b
is a fitting side, and 5d is a slat surface. >Ku

Claims (1)

[Claims] 1) A shutter curtain for a building that is wound around a winding drum installed in an opening and is opened and closed by being guided by a guide rail, wherein the shutter curtain is made of a rigid material. A main slat and a sub-slat made of an elastic material are used, and connecting portions that protrude toward the indoor side are formed on the upper and lower edges of each slat, and these connecting portions are overlapped. A shutter curtain for a building, characterized in that these connecting parts are integrally connected and a cover body is covered from the indoor side. 2) The building according to claim 1, wherein the cover body is covered with at least the side of the connecting parts based on the sub-slats that is wound on the winding drum first. Shutter curtain for.