JPH04115088A - Shutter curtain for building - Google Patents

Abstract

PURPOSE:To improve the appearance, the burglar prevention, and the rust preventive property, by connecting a main slat and an auxiliary slat by pushing in and fitting the fitting side of the auxiliary slat side to the fitting groove formed at the main slat side. CONSTITUTION:Main slats 4 formed of a material with a rigidity and auxiliary slats 5 formed of a material with an elasticity are connected alternatively to compose a shutter curtain. And, while the upper side fitting side 5a of the auxiliary slat 5 is pushed in and fitted to the lower side fitting groove 4b of the main slat 4 until an engaging piece 5c is engaged to an engaging hole 4c, the lower side fitting side 5b of the auxiliary slat 5 is pushed in to the upper side fitting groove 4a of the main slat 4 so as to form in a set. And an engaging piece 5c formed at the auxiliary slat 5 is expanded either one side in the longitudinal direction of the slat to form a cuttingup and the other side can not be engaged to the engaging hole 4c of the main slat 4, in this composition.

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, for example, and is opened and closed while being guided by guide rails formed on both sides of the opening.

By the way, this shutter curtain needs to be formed so that it can be curved because it is wound from a straight position along a guide rail to a winding drum. They were interlocked together to form a bendable shutter curtain. However, in this case, there is inevitably a gap and play in the interlock joint, so there is a problem that noise is generated 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 shutter curtain for a building that can eliminate these drawbacks. A shutter curtain for a building that uses a main slat made of a rigid material and a sub-slat made of an elastic material, In this case, fitting grooves are formed that protrude toward the indoor side and are open on the outdoor side, and the fitting sides that are formed to protrude toward the outdoor side are pushed into these fitting grooves on both side edges of the sub-slat to fit. In addition to configuring
Furthermore, an engaging hole is formed in the fitting groove, and a locking piece cut and raised so that the slat surface side expands is formed on the fitting side, so that the fitting side of the fitting groove is formed in the fitting groove. It is characterized in that the locking piece is configured to engage with the engagement hole by push-fitting to prevent the fitting side from coming off.

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 with the tip slanting upward by an appropriate forming method such as die forming or roll forming, and both legs are further outwardly inclined. Fitting grooves 4a and 4b are folded toward each other and are shaped like hairpin grooves (for convenience, as the shutter curtain 1 is moved in the vertical direction, the upper fitting groove is 4a and the lower fitting groove is 4b). number)
is formed. Engagement holes 4C are bored at the outer sides of the engagement grooves 4a, 4b with an interval of pitch A. ) is set to B.

On the other hand, the sub-slat 5 is bent into a substantially U-shape with the tip of the arrow slanted upward. The upper leg side is numbered 5a and the lower leg side is numbered 5b. As shown in Y, the right side is expanded when viewed from the drawing, and an engaging piece 5C is formed in a raised manner so as to protrude toward the opposite side of the solid fitting side. 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 upper fitting side 5a of the sub slat 5 to the lower fitting groove 4b of the main slat 4 with the engagement piece 5.
C is pushed into the engagement hole 4C until it engages with the engagement hole 4C, and at the same time, the lower side fitting side 5b of the sub slat 5 is pushed into the upper fitting groove 4a of the main slat 4 in the same manner and fitted in a continuous manner. However, the shutter curtain 1 formed in a series in this way is formed by elastically deforming the sub-slats 5 and curving the winding drum 2.
At this time, the sub slat 5 is configured to be allowed to move to the right.

In the embodiment of the present invention constructed as described above, the opening and closing of the opening is achieved by moving the shutter curtain 1 guided by the guide rail 3, but the shutter curtain 1 is moved by a conventional interlocking 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.

Furthermore, in this case, when winding onto the winding drum 2, the elastic and flexible sub-slat 5 is curved instead of the rigid main slat 4, so it is different from the conventional interlock connection. Similarly, it can be wound spirally without any problem.

Furthermore, in this case, the main and sub-slats 4.5 are connected by pushing the fitting sides 5a, 5b into the fitting grooves 4a, 4b until the engagement piece 5c engages with the engagement hole 4c. Therefore, the installation of the shutter curtain 1 is easy and the voice production is not complicated at all. Moreover, the main and sub-slats 4.5 assembled in this way are formed so that the engagement piece 5c formed on the sub-slat 5 is expanded to one side in the longitudinal direction of the slat and is cut and raised, and the other side is cut and raised. Since the side is configured not to engage with the engagement hole 4c of the main slat 4,
The fitting sides 5a, 5b are securely prevented from coming out of the fitting grooves 4a, 4b, and furthermore, the engagement piece 5c is prevented from shifting toward the expansion side (left side), but movement to the right side is permitted. As a result, as with conventional interlocking connections, the end fittings that restrict the left-right deviation of the slats need only be attached to one side, which has the advantage of reducing the number of parts. Another advantage is that the sub-slat 5 can be easily removed and replaced.

Furthermore, in this case, since the connecting portions between the slats 4 and 5 are not exposed to the outside, it is advantageous not only in terms of appearance but also in terms of crime prevention. Moreover, in this case, as shown in Fig. 4 Y and Z,
Since it can be bent to accommodate both full-length and reverse-wound winding methods, it can be handled in the same way as an interlocking type shutter curtain, so there is no problem.

It should be noted that the present invention is of course not limited to the above-mentioned embodiment, and the engagement piece 5c is not formed into an expanded shape by cutting and raising it, but for example, in the second embodiment shown in FIG. The engagement piece 5c may be formed by stamping as shown in FIG.

Further, as shown in FIG. 7, the fitting groove portion and the fitting side may protrude in a direction perpendicular to the slat surface. Incidentally, in each of the above embodiments, the @ of each of the main and sub slats (the @ in the direction of the guide rails, not in the direction between the opposing guide rails) can be set arbitrarily if necessary. It goes without saying that the slats may be wider than the main slats.

In this way, the present invention can be implemented as long as it has a structure in which a rigid main slat and an elastic sub-slat are fitted and locked, and in each of the above embodiments, =8=main, sub-slat. The width of each slat (width in the direction of the guide rails, not in the direction between the opposing guide rails) can be set arbitrarily if necessary. Therefore the 8th
The patterns shown in the figures (in which the solid lines represent the main slats and the broken lines represent the sub-slats) may also be used. In other words, the main slat 4 has a substantially semicircular arc shape (Fig. 8A), the slat surface of the main slat 4 has a substantially corrugated plate shape (Fig. 8B), and the slat surface of the main slat 4. Those with various patterns on the slat surface, such as those in which the main slat 4 has a substantially zigzag shape (Fig. 8C), those in which the slat surface of the main slat 4 is approximately uneven (Fig. 8D), Furthermore, various patterns such as those in which these patterns are applied to the side of the sub-slat 5, and combinations of these various main and sub-slats can be adopted.

Furthermore, as shown in the pattern diagram of FIG. 9, the storage of the shutter curtain is not limited to winding the shutter curtain in a spiral manner on the winding drum as in the first embodiment described above, but on the spiral storage rail 7. Something that can be stored (Figure 9A),
The present invention can be implemented in various ways, such as one in which the guide rail 3 is stored in a horizontal storage rail 8 via a curved rail (FIG. 9B).

[Operations and Effects] In summary, since the present invention is constructed as described above, the shutter curtain has each side portion of the main slat made of a rigid material.

By alternately and integrally connecting each side of the secondary slats made of an elastic material, it is possible to eliminate the interlocking joints required in the past, thereby reducing the gap between adjacent primary and secondary slats. There is no noise at all, and it is possible to avoid the generation of unpleasant noise caused by the slats rubbing or colliding with each other when opening/closing or when exposed to wind, resulting in significantly lower noise. It will be possible to make it quieter. Furthermore, there is no gap between adjacent slats, which greatly contributes to improving fire prevention, smoke prevention, and sound insulation.

Furthermore, since the connection between the main and sub-slats is achieved by pushing the fitting side of the sub-slat into the fitting groove formed on the main slat, the connecting end is not exposed outdoors. , not only is it attractive in terms of appearance, but it also has the advantage of being very convenient in terms of security and rust prevention, and it can be bent to accommodate both overwrap and reverse winding methods. Since it can be handled in the same way as a combined type shutter curtain, there is no problem.

Furthermore, the main and sub-slats can be connected by simply pushing the mating sides into the mating grooves until the mating parts engage with the mating holes, making it easy to assemble the shutter curtain and improve work efficiency. Simplification can be measured.

Moreover, the main and sub-slats assembled in this way are restricted from moving in the pushing direction by the engaging portion formed on the sub-slat, that is, from preventing the fitting side from coming out of the fitting groove. Since no engagement with the engagement hole is made in either direction in the longitudinal direction, movement is allowed, and as a result, there is an advantage that slat replacement during maintenance can be performed extremely easily.

[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 sectional views and side views of the main slats, Figure 3
Figures X, Y, and Z are side views showing the shutter curtain in a linear state, a forward winding state, and a reverse winding state, respectively, Figure 5 is an enlarged sectional view of the connecting part, and Figure 6 is a view of the sub-slat showing the second embodiment. An enlarged perspective view, FIG. 7 is a sectional view of a shutter curtain showing the third embodiment, FIGS. 8A-D are pattern diagrams of the shutter curtain showing other embodiments, and FIGS. 9A and B are diagrams of the shutter curtain. It is a pattern diagram which shows the storage state of another Example. 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 sides, and 5c is an engagement piece.

Claims (1)

[Claims] A shutter curtain for a building that opens and closes an opening, the shutter curtain is made of main slats made of a rigid material and sub-slats made of an elastic material. A fitting groove is formed on both side edges of the housing, which protrudes toward the indoor side and is open on the outdoor side.
The fitting sides formed on both side edges of the sub-slat protruding toward the outdoor side are press-fitted into these fitting grooves, and engagement holes are formed in the fitting grooves, and On the fitting side, the engaging part that fits into the engaging hole is gently bulged out on one side in the longitudinal direction of the sub-slat to avoid engagement with the engaging hole, and the remaining three sides are stepped. A shutter curtain for a building, characterized in that it is formed to bulge and engage with an engagement hole.