JPH04115090A - Shutter curtain for building - Google Patents

Abstract

PURPOSE:To replace slats easily by composing the fitting sides of an auxiliary slat to be pushed in to the fitting grooves of a main slat to avoid the engagement in three directions, and to permit the engagement only in the direction reverse to the pushing-in direction by swelling in a step form. CONSTITUTION:Fitting grooves 4a and 4b are formed.at both ends of a main slat 4. Then engaging holes 4c are formed at the outer side of the fitting grooves 4a and 4b. Then engaging pieces 5c are projected from fitting sides 5a and 5b. Then, the connections of the engaging pieces 5c and the engaging holes 4c is composed to stop the removal of the fitting sides 5a and 5b from the fitting grooves 4a and 4b, but to permit to move to both sides in the longitudinal direction of slat and to the pushing-in direction. And main slats 4 formed of a material with a rigidity, and auxiliary slats 5 formed of a material with an elasticity are connected alternatively in series to obtain a shutter curtain.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a shutter curtain for use 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 in a winding lid drum from a straight line position along a guide rail. They were interlocked together to form a bendable 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 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.

[Embodiment] Next, an embodiment of the present invention will be described based on the drawings. In the drawings, reference numeral 1 denotes a shutter curtain for a building shutter. The shutter curtain 1 is wound around a winding drum 2 installed above an opening, and is wound around guide rails 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 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 on the outer sides of the engagement grooves 4a, 4b with an interval of pinch 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. The engaging piece 5c is cut and raised, and the engaging piece 5c is curved in the longitudinal direction of the slat so that the engaging piece 5c is curved in the longitudinal direction of the slat.
= There is. The pitch of the engaging pieces 5c (engaging portions) is set to be approximately half (B/2) of the length of the engaging holes 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 until it engages with the engagement hole 4c, and at the same time push and fit the lower side fitting side 5b of the sub slat 5 into the upper fitting groove 4a of the main slat 4 in the same way to form a continuous shape. The shutter curtain 1 formed in a series in this way is wound around the winding drum 2 by the sub-slats 5 being elastically deformed and curved. The mating piece 5c prevents the mating sides 5a, 5b from coming out of the mating grooves 4a, 4b by engaging with the mating hole 4c, but it cannot engage with both longitudinal sides of the slat in the pushing direction. The configuration allows for movement without any problems.

In the embodiment of the present invention configured as described above, the opening and closing of the opening is accomplished by moving the shutter curtain 1 while being guided by the guide rail 3. Unlike the case where rigid slats are connected together in a bendable manner, there is no gap between the slats, and as a result, the slats do not collide with each other during opening/closing operations or when exposed to wind. It is possible to reliably avoid the noise caused by the noise caused by the noise, and it is possible to obtain a quiet, low-noise building shutter. 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 grooves 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 workability is not complicated at all. Moreover, in the main and sub-slats 4.5 assembled in this way, the engaging piece 5c formed on the sub-slat 5 expands toward the slat surface portion 5d, and the cut and raised piece curves in the longitudinal direction of the slat. Since the fitting grooves 5a and 5b are prevented from coming out from the fitting groove parts 4a and 4b, they are allowed to move in the left-right direction and the pushing direction. This has the advantage that it is extremely easy to remove and replace the slats during maintenance.

Further, in this case, since the connecting portions between the slats 4.5 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 forward and reverse winding methods, it can be handled in the same way as an interlocking type shutter curtain, and there will be no problems.

It should be noted that the present invention is of course not limited to the above-mentioned embodiment, and the shape of the engaging piece 5c may be formed as in the second embodiment shown in FIG. 6. It is sufficient that the slat is securely prevented from coming off while allowing movement in three directions: the slat pushing direction and the longitudinal direction.

Further, as shown in FIG. 7, the fitting groove portion and the fitting groove may protrude in a direction perpendicular to the slat surface. Incidentally, in each of the above embodiments, the width of each main and sub slat (in the direction of the guide rails, not in the direction between 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 the rigid main slat and the elastic sub-slat are fitted and locked together, and in each of the above embodiments, each of the main and sub-slats The width (@ in the direction of the guide rails, not in the direction between the opposing guide rails) can be set arbitrarily if necessary. Therefore, patterns such as those shown in FIG. 8 (where the solid lines represent the main slats and the broken lines represent the sub-slats) may 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. The slat surface of the main slat 4 has a substantially zigzag shape (Fig. 8C), and the slat surface of the main slat 4 has a substantially uneven shape (Fig. 8D).
) etc., various patterns can be applied to the slat surface, furthermore, these patterns can be applied to the sub-slat S side, and these various types of main and sub-slats can be combined. .

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),
It can be implemented in various types of devices, such as one that is stored in a horizontal storage rail 8 via a curved rail from the guide rail 3 (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, and each side portion of the main slat made of an elastic material. By integrally connecting the side parts of the secondary slats alternately, it is possible to eliminate the interlocking joints that were required in the past.Therefore, there is no gap between adjacent main and secondary slats, and the opening/closing operation can be easily performed. It is possible to avoid the generation of unpleasant noise caused by the slats rubbing against each other or colliding with each other when the slats are exposed to the wind, etc., resulting in significantly lower noise and quieter operation. . Furthermore, since there is no gap between adjacent slats, it can greatly contribute 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 forward and reverse winding methods, making it an excellent choice for interfacing. Since it can be handled in the same way as a locking 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 prevented from coming off the mating side from the mating groove by the engaging portion formed on the sub-slat, but are prevented from moving in the other three directions. 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 x, y, and z are cross-sectional views and side views of the sub-slats;
FIG. 4 is an enlarged perspective view, and FIG.
Fig. 5 is an enlarged sectional view of the connecting portion, Fig. 6 is an enlarged perspective view of the sub-slat showing the second embodiment, Fig. 7 is a sectional view of the shutter curtain showing the third embodiment, and Figs. 8 A to D. 9A and 9E are pattern diagrams of shutter curtains showing other embodiments, respectively, and FIGS. 9A and 9E are pattern diagrams showing the storage state of other embodiments of the shutter curtain. 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. Utility model registration applicant Sanwa Shutter Industry Co., Ltd. Agent Patent attorney Tetsuo Hirose b Y Figure 3

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 The fitting side has an engaging part that fits into the above-mentioned engaging hole, and both sides of the sub-slat in the longitudinal direction and three sides in the pushing direction are gently bulged out to avoid engagement with the engaging hole, and only on the opposite side in the pushing direction. A shutter curtain for a building, characterized in that the shutter curtain is formed to bulge out in a step-like manner and engage with an engagement hole.