JPH04115087A - Shutter curtain for building - Google Patents

Abstract

PURPOSE:To prevent a damage of a shutter curtain as well as to prevent generation of a noise when the shutter is opened or shutted by covering one side connection of the connections of a main slat and an auxiliary slat with a cover formed at the other side connection. CONSTITUTION:A main slat 4 and an auxiliary slat 5 are connected by inserting and fitting the fitting pieces projected form fitting sides 5a and 5b to the engaging holes 4c formed at fitting grooves 4a and 4b. Then, the tips of the fitting connections composed by fitting the fitting sides 5a and 5b to the fitting grooves 4a and 4b are made that the side where a cover body 9 is capped at the upper side connection holding a slat surface 5d of the auxiliary slat 5 which is deformed elastically is made in a smaller diameter than the tip of the lower side fitting connection which is wound afterward. And the auxiliary slat 5 is bent and deformed in the condition that the tip of the upper side fitting connection wound in advance is abutted to a winding drum and held thereby.

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 change its shape between a straight position along the guide rail and a spiral position when wound around the winding drum. The formed slats were interlocked with each other 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 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
Connecting parts protruding toward the indoor side are formed, these connecting parts are overlapped and connected integrally, and one of these adjacent connecting parts extends to the other connecting part. This is characterized in that a cover portion is formed to cover the other connecting portion.

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 configured 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 connection portion (corresponding to the connection portion of the present invention) is formed, and the fitting groove portion 4a
, 4b is sloped such that the indoor side is higher and the outdoor side is lower. And on the outer side of these fitting grooves 4a, 4b,
The engagement holes 4c are bored at intervals of pinch A, and the length of the engagement holes 4c in the left-right direction (the length in the direction of pitch A) is set to B.

Furthermore, the leg end edge of the lower fitting connection part of the main slat is further folded back toward the indoor side, and the cover part 4d that extends to the adjacent fitting connection part and covers it is folded integrally. A song is formed.

On the other hand, the sub-slat S 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. ), like the fitting grooves 4a and 4b of the main slat 4, are sloped so that the indoor side is higher and the outdoor side is lower. Further, the engagement piece 5c is arranged so that its tip is on the crotch side and protrudes toward the side opposite to the solid fitting side.
=4 is stamped and formed. 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 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 cover portion 4d of the main slat 4 is interposed between the tip of the lower fitting connection portion that will be wound later and the winding drum 2 (or the shutter curtain that has already been wound). Re-slat 1 where the side fitting connection part moves without directly contacting the winding drum 2 or the slat 4.5, and the tip of the lower fitting connection part rubs against the winding drum 2, causing abnormal noise. This means that problems such as damage to the body can be reliably prevented.

It is possible to reliably prevent problems such as damage to the restrat, which causes abnormal noises caused by the tip of the lower fitting connection part rubbing against the winding drum 2 and causing the reslat to move without making contact with the winding drum 2. become.

Furthermore, in this embodiment, each slat 4.
Since the connecting ends of the five members are not exposed to the outside, it is not only favorable in terms of appearance, but also has the advantage of being extremely 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 may be applied to patterns such as those shown in FIG. 6 (here, the solid line represents the main slat and the broken line represents the sub-slat). It's okay to have one. In other words, the bent sides have the same pattern as in the first embodiment but protrude horizontally (FIG. 6A), the main slat 4 is approximately Σ-shaped (FIG. 6B), The main slat 4 has a substantially semicircular arc shape (Fig. 6C), the slat surface of the main slat 4 has a substantially corrugated plate shape (Fig. 6D), and the slat surface of the main slat 4 Various types of slats are used, such as those with a roughly zigzag shape (Fig. 6E), those with various patterns on the slat surface, and those with these patterns on the side of the sub-slash. It is possible.

[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, one of the two connecting portions is covered by a cover portion formed on the other connecting portion, and the covered connecting portion changes during opening/closing operation. It is possible to prevent noise from being generated and to reliably avoid damage to the winding drum and the already wound shirt tarpaulin.

[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 E are pattern diagrams of shutter curtains showing other embodiments. In the figure, 1 is a shutter curtain, 2 is a winding drum, 3
4 is a guide rail, 4 is a main slat, 4a and 4b are fitting grooves, 4d is a cover portion, 5 is a sub-slat, 5a and 5b are fitting grooves, and 5d is a slat surface. >Ku

Claims (1)

[Claims] In a building shutter curtain that is wound around a winding drum that is installed in an opening and is opened and closed while being guided by a guide rail, the shutter curtain is made of a main slat made of a rigid material and an elastic material. connecting portions protruding toward the indoor side are formed on both upper and lower edges of each slat, and these connecting portions are overlapped and connected integrally, Furthermore, the shutter curtain for a building is characterized in that one of the adjacent connecting parts is extended to the other connecting part to form a cover part that covers the other connecting part.