JPH04111889A - 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. In addition, a fitting coupling section has the R-shaped end. According to the constitution, when a shutter curtain is wound on a winding drum, damage to the slats can be surely prevented, and noises can be greatly lowered.

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, 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 shutter curtain for a building that can eliminate these drawbacks. A shutter curtain for a building that uses main slats made of a rigid material and sub-slats made of an elastic material, and has side edges of each slat. A connecting portion protruding toward the indoor side is formed in the portion, and these connecting portions are overlapped to form an integral connection, and furthermore, the tip of the connected connecting portion is rounded. This is a characteristic feature.

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 outward in a widening shape. Engagement holes 4c are bored at the outer sides of the engagement grooves 4a, 4b with an interval of pitch A. length) is B
is set to .

On the other hand, the sub-slat 5 is bent into a substantially U-shape, and its fitting portions 5a and 5b (for convenience, the upper one is referred to as the upper fitting portion 5a, and the lower one is referred to as the lower fitting portion 5a). Fitting part 5b
be distinguished as Similar to the fitting portion of the main slat 4, the connecting portion (corresponding to the connecting portion of the present invention) is sloped so that the indoor side is higher and the outdoor side is lower. Furthermore, 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. At this time, the tip of the fitting connection part is R
However, the tip of the fitting connection part is higher on the indoor side,
Since the outdoor side has a low slope, the tip of the lower fitting connection part has an outer diameter of D compared to the tip of the upper fitting connection part across the slat surface part 5d of the sub-slat 5 that is elastically deformed. It is set to be located on the side.

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 door can be opened reliably to prevent the occurrence of noise, and a quiet, low-noise building shutter can be provided. 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.

Furthermore, in this embodiment, each slat 4.
Since the connecting ends of the five members are not exposed to the outdoors, this 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.

Moreover, in this case, as shown in FIG. 4Y, the fitting groove 4a
, 4b are fitted with the fitting sides 5a, 5b, and the fitting connecting portion is formed by fitting the fitting sides 5a, 5b into the slat surface portion 5d of the sub-slat 5 which is elastically deformed.
The upper side of the shutter curtain 1, that is, the side that is wound on the winding drum first, is on the inner diameter side by D compared to the end of the fitting connection that is wound on the back side.
In this case, the tip of the upper fitting connection part that is wound up in advance is the winding drum 2 (or the shutter curtain that has already been wound).
The sub slat 5 is deformed in a curved manner while being in contact with and supported by the
The winding drum 2 (or the shutter curtain that has already been wound) will be moved 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 tip of the fitting connection part on the rear side will rub, causing abnormal noises and causing damage to the slats. This will ensure that problems that could result in damage to the product can be prevented.

Moreover, since the tip of the upper fitting connection part that comes into contact with the winding drum 2 (or the already-wrapped shutter curtain) is rounded, the winding-up drum 2 (or the already-wrapped shutter curtain) Since the slats are brought into gentle contact with the slats, problems such as damage to the slats can be reliably prevented.

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 displacement 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 in order to further enhance the effect of preventing damage, it is preferable that the tip of the connecting portion be formed into an R-shaped portion with a larger diameter. Therefore, a second embodiment shown in FIG. 6 may be used. Alternatively, the pattern shown in FIG. 7 (in which the solid line represents the main slat and the broken line represents the sub-slat) may be used. In other words, a fitting groove is formed on the side of the sub-slat to connect the connecting part, and the tip of the connecting part is rounded (Fig. 7A), and an engaging piece is engaged with the engaging hole as a means to prevent the connecting part from coming off. Instead, the connecting parts of the slats are connected using general fastening means such as rivets (Fig. 7B), and the bent sides are in the same pattern as in the first embodiment, but in a horizontal manner. What stands out (Figure 7C)
, the main slat 4 is approximately Σ-shaped (Fig. 7D)
), the main slat 4 has a substantially semicircular arc shape (7th
Figure E), Main slat 4 whose slat surface is approximately corrugated (Fig. 7F), Main slat whose slat surface is approximately zigzag (Fig. 7G), Main slat 4 4
The slat surface is approximately uneven (Fig. 7H)
Various types of slats can be adopted, such as those with various patterns on the slat surface, those with these patterns on the sub-slat 5 side, and combinations of these various main and sub-slats. .

Furthermore, as shown in the pattern diagram of FIG. 8, the storage of the shutter curtain is not limited to being wound spirally around the winding drum as in the first embodiment described above; It is arranged to be stored in the spiral storage rail 7 (Fig. 8A)
It can be implemented in various things, such as one that is stored in a horizontal storage rail 8 via a curved rail from the guide rail 3 (FIG. 8B).

In summary, since the present invention is constructed as described above, the shutter curtain is made of a connecting portion of the main slats made of a rigid material and 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 are no gaps 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.

Moreover, since the ends of the joints between the slats are rounded, when the shutter curtain is stored in a curved shape, the ends of the joints are connected to the winding drum, the already wound shutter curtain, or the guide rail. The slats will come into gentle contact with the slats, and problems such as damage to the slats can therefore be reliably prevented.

[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.
The figure is a sectional view of the shutter curtain showing the second embodiment, Figure 7 is a pattern diagram of the shutter curtain showing another embodiment, and Figure 8 A and B are storage of the shutter curtain of other embodiments. It is a pattern diagram showing a state. 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, 5 is a sub-slat, 5a and 5b are fitting grooves, and 5d is a slat surface. 〉No. 6N

Claims (1)

[Claims] A shutter curtain for a building that opens and closes an opening, and the shutter curtain is made of main slats made of a rigid material and sub-slats made of an elastic material. Connecting portions protruding toward the indoor side are formed on both side edges of the slat, and these connecting portions are overlapped to form an integral connection.
Furthermore, the shutter curtain for a building is characterized in that the ends of the connected connecting portions are rounded.