JP3820563B2 - Architectural shutter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a building shutter that can prevent a shutter curtain of a building shutter from being bent by receiving strong winds such as a typhoon and coming out of a guide rail.
[0002]
[Prior art]
Conventionally, an architectural shutter curtain in which a plurality of slats are vertically bound has been configured to open and close a building opening by lifting and lowering in a state where both end sides are fitted and inserted into the opening of a substantially U-shaped guide rail. In the case of strong winds such as typhoons, the shirt curtain is normally closed to prevent the window glass installed inside from being damaged by flying objects.
However, when a strong wind pressure is applied in this closed state, the shutter curtain is supported at both ends inserted and inserted into the guide rails, and the center part thereof is greatly bent in the indoor / outdoor direction. Although the amount of bending is restricted to some extent by the contact with the glass surface, the amount of bending increases in the outdoor direction without being restricted. As a result, the end of the shutter curtain comes out of the guide rail. In addition to losing the closed purpose, the shutter curtain itself is also damaged.
In order to prevent such a situation, various measures for preventing the shutter curtain from coming off the guide rail have been proposed.
For example, hook-shaped metal fittings are provided at both ends of the slats constituting the shutter curtain, and the metal fittings are locked to locking pieces provided in the guide rails to prevent them from coming off, or convex at the ends of the slats. In some cases, the cut and raised portion is formed so that the cut and raised portion is locked to the locking piece of the guide rail.
[0003]
[Problems to be solved by the invention]
However, the above-mentioned prior art requires not only labor for attaching the bracket, but also the bracket provided at the end of the slat is caught on the upper end of the guide rail when the rolled-up shutter curtain is extended, which hinders the lifting operation. In the middle of ascending / descending, the brackets rub against the inner wall surface of the guide rail, causing scratches and abnormal noise, and the winding diameters of the brackets may be increased due to contact between the brackets during winding. Is.
In addition, since the shutter curtain is scratched or the winding diameter is increased during winding due to the cut and raised convex portion, the shutter case becomes larger than necessary, and the present invention is intended to solve the problem. There is a problem to do.
[0004]
[Means for Solving the Problems]
The present invention has been made in order to solve these problems, and a plurality of slats are connected to each other at right and left ends of a shirter curtain that is flexibly bound via an interlock portion protruding from the upper and lower edges thereof. In the architectural shutter configured to be able to be moved up and down by inserting the portion into the guide rail, the inner surface of the inner wall surface of the guide rail is formed with ridges extending in the vertical direction, and the interlock of each slat constituting the shutter curtain The part is formed on the surface on the side facing the ridges at positions near both ends thereof , and is provided with a locking recess that is positioned on substantially the same vertical line and that can be locked to the ridges. When it curves toward, the said latching recessed part latches to a protruding item | line, and it comprised so that the shutter curtain both ends may restrict | spill out from a guide rail.
[0005]
And even if the shutter curtain of the building shutter is bent due to a strong wind such as a typhoon due to this configuration, it effectively prevents the both ends from slipping out of the guide rail, while projecting objects on the slats. Since the shutter curtain is not formed, there is no possibility that the shutter curtain slides on the guide rail when raising and lowering to generate scratches or abnormal noise, and the slat is not damaged or the winding diameter does not increase during winding.
[0008]
Further, the ridge is also used as a pocket portion having an airtight piece mounting groove.
[0009]
And by this structure, a material cost is reduced by giving a part of a pocket part the function of a protrusion.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment according to the present invention will be described with reference to the drawings.
FIG. 1 is a front view of a building shutter, and a shutter curtain 1 having an upper end fixed to a winding shaft (not shown) that is horizontally mounted is fitted and supported by guide rails 3 and 3 at both ends thereof. In this state, the opening is opened and closed by forward and reverse rotation of the winding shaft.
As shown in FIG. 2, the guide rail 3 is formed in a substantially U-shaped cross section in which one end side of the indoor side rib 3 a and the outdoor side rib 3 b that are spaced apart from each other is connected by a bottom rib 3 c and the other end side is opened. Pocket portions 3e and 3e into which the airtight pieces 3f and 3g are inserted are respectively formed in the opening portions of the inner wall surfaces of the ribs 3a and 3b so as to be continuously formed in the longitudinal direction of the guide rail 3.
Further, a convex strip 3d is formed on the inner wall surface of the indoor side rib 3a so as to be continuous in the longitudinal direction toward the outdoor side rib 3b side slightly near the center. The protruding height of the ridge 3d is set to be substantially the same as the height of the pocket 3e.
[0011]
As shown in FIG. 3 (C), the shutter curtain 1 includes a plurality of slats 2, each of which has a curved surface at the center and curled interlocking portions 2a and 2b extending in opposite directions on the upper and lower edges. 2. The upper edge side interlock portion 2a of each slat 2 is cut out by a predetermined dimension L from both ends of the slat 2 as shown in FIG. 3 (A). Reference numeral 4 denotes a locking recess, and the locking recess 4 is formed on a surface (inside surface) facing the protrusion 3d at positions near both ends of the lower edge side interlock portion 2b of the thrust 2. As shown in FIG. 4 (A), a dimension M larger than the width m of the ridge 3d is cut out. Further, the interval between the locking recesses 4, 4 formed facing the left and right is set to be slightly larger than the longitudinal dimension of the upper edge side interlock portion 2 a where the slat 2 is cut out.
By engaging the upper edge side interlock portion 2a of the slat 2 formed in this way into the lower edge side interlock portion 2b of the upper slat 2 from the end side thereof and continuously binding the upper and lower portions, the locking recess 4 can be The curtain 1 is positioned on the same vertical line at both ends thereof.
[0012]
Reference numeral 5 denotes a movement restricting piece that prevents the vertically adjacent slats 2 and 2 from moving in the longitudinal direction. The movement restricting piece 5 includes a lower edge side interlock portion 2b as shown in FIG. Each of the locking recesses 4 and 4 facing left and right is formed by crushing in an inclined shape so as to be lowered toward the locking recess 4 by pressing from the front side in the vicinity of the inner end portion thereof, Both ends of the upper edge interlock portion 2a fitted in the lower edge interlock portion 2b are restricted from moving in the longitudinal direction by the movement restricting pieces 5.
[0013]
In this way, when the movement restricting piece 5 is formed in an inclined shape on the end portion on the slat center side of the locking recess 4, the load due to the wind pressure on the shirt curtain 1 is reduced, and the end portion side of the shutter curtain 1 is the bottom of the guide rail 3. When moving in the direction and returning to the original state, the locking recess 4 is guided in a direction in which the locking state with the protrusion 3d is released by the inclined portion, and smoothly returns without being caught. It is something that can be done.
[0014]
In the present embodiment, the description has been given of the case in which the locking recess 4 is provided with the movement restricting piece 5 for preventing the movement of the thrust 2 in the longitudinal direction. The end portions of the lock portions 2a and 2b may be provided by caulking.
[0015]
Further, the movement restricting piece 5 is formed by forming two vertical slits in the lower edge side interlock portion 2b as shown in FIG. 4 (B), and crushing the portion 5 'between the slits by pressing from the front side. In this case, the locking recess 4 and the movement restricting piece 5 can be formed at the same time, and the working efficiency can be improved.
[0016]
The thing shown in FIG. 6 differs in the notch state of the interlock parts 2a and 2b of the slat 2 for forming the latching recessed part 4 from what was mentioned above.
That is, in the above-described case, the upper edge side interlock portion 2a is cut out from the both ends of the slat 2 by a predetermined dimension (L), whereas the one shown in FIG. The slats 2 are cut out by M lengths from the positions left by (LM) from both ends of the head, while the lower edge side interlocking portions 2b are respectively (LM) from the ends thereof. A slit 6 is formed at each of the positions.
The upper curtain side interlocking part 2a and the lower edge side interlocking part 2b of the plurality of sheets 2, 2 formed in this way are connected and fitted from the end side to form the shutter curtain 1, FIG. As shown in (B), the slit 6 portion is caulked to form the locking recess 4 and the movement restricting piece 5, and in this case, the lower edge side interlock 2 b is provided at both ends of the interlock portion of the shirt curtain 1. When the shirt curtain 1 is bent by receiving wind pressure when the upper curtain side interlock 2a of the adjacent slat 2 is fitted, the locking recess 4 is engaged with the protrusion 3d of the guide rail 3. This will stop the shirt curtain 1 from coming off, but at this time, both ends of the interlocking portion (the part of LM) bearing the retaining force have a double fitting structure. Have partial strength, the retaining action of the shirt coater curtain 1 can be assured.
[0017]
As shown in FIG. 7A, the shutter curtain 1 configured as described above is lifted and lowered with its end side being fitted into the guide rail 3 at all times. However, the shutter curtain 1 receives negative pressure due to strong wind. Is bent toward the outdoor side, the shirt curtain 1 is first contacted with the air-tight piece 3g inserted into the pocket portion 3e of the outdoor rib 3b at the outer surface side of the shirt curtain 1 and thereafter the central portion is the outdoor side. Both end portions 1 a come into contact with the inner wall surface of the indoor rib 3 a of the guide rail 3 as it bends and curves. When the amount of deflection further increases, as shown in FIG. 7B, both end portions 1a of the shirt curtain 1 move toward the opening side of the guide rail 3, but the locking recess 4 is engaged with the protrusion 3d. It is possible to prevent the end 1a of the shirt curtain 1 from coming out of the guide rail 3 as a result.
[0018]
In the case where the pocket portions 3e and 3e are formed opposite to the front end side of the indoor side rib 3a and the outdoor side rib 3b of the guide rail 3 as in the present embodiment, as shown in FIG. Even when the shirter curtain 1 is bent and curved toward the indoor side, it is possible to prevent the shirter curtain 1 from slipping out of the guide rail 3 by engaging the locking recess 4 with the pocket 3e formed in the indoor rib 3a. Therefore, it is possible to cope with any deflection of the shirt curtain 1 in the indoor and outdoor directions.
In this case, needless to say, the notch width of the locking recess 4 is set to be slightly larger than the width of the indoor pocket portion 3e.
[0019]
FIG. 8 shows another embodiment in the case where the ridge 3d is formed, and FIG. 8 (A) is a case where the pocket portion 3e on the indoor side of the guide rail 3 is also used as the ridge 3d. In B), the rib 3a on the indoor side of the guide rail 3 is formed in a stepped shape to form the ridge 3d.
[0020]
【The invention's effect】
According to the present invention, the interlock portion of the slat is provided with a locking recess in the surface on the side facing the ridge at positions near both ends thereof, so that it does not protrude from the slat. Not only can the smooth movement of the shirt curtain be ensured without damaging it, but also when the shirt curtain is wound up, the scratch may be damaged or the winding diameter may increase more than necessary. Absent. In addition, the interlocking part that bears the retaining force when the locking recess is locked to the protrusion of the guide rail and the shirter curtain is prevented from coming off has a double fitting structure, so that it has sufficient strength. And can ensure the action of preventing the shirt curtain from coming off.
[Brief description of the drawings]
FIG. 1 is a front view of an architectural shutter.
FIG. 2 is an enlarged cross-sectional view of a guide rail.
FIG. 3A is a front view of a main part of a shutter curtain.
(B) It is a bottom view same as the above.
(C) It is a right side view same as the above.
FIG. 4 is an enlarged perspective view of a main part showing a locking recess and a movement restricting piece.
FIG. 5 is an enlarged perspective view of a main part showing an end portion of the shutter curtain.
FIG. 6 (A) is an explanatory diagram of slat processing showing another embodiment of a locking recess.
(B) It is a perspective view of the slat which shows a locking recessed part same as the above.
FIG. 7 is an operation explanatory diagram illustrating a state in which the shutter curtain is prevented from being detached.
FIG. 8A is a guide rail cross-sectional view showing another embodiment of a ridge.
(B) It is guide rail sectional drawing which shows other embodiment of a protruding item | line.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Shutter curtain 2 Slat 2a Upper edge side interlock part 2b Lower edge side interlock part 3 Guide rail 3d Protrusion 4 Locking recessed part 5 Movement control piece 6 Slit

Claims (2)

In the architectural shutter configured to be able to move up and down by inserting the left and right ends of a shirter curtain formed by connecting a plurality of slats in a flexible manner via interlocking portions protruding from the upper and lower edges of the slats, into the guide rail, A ridge is formed on the inner wall surface side of the guide rail in the vertical direction, and the interlock portion of each slat constituting the shutter curtain has a surface on the side facing the ridge at positions near both ends thereof. A locking recess that is positioned on substantially the same vertical line and that can be locked to the ridge is formed, and when the shutter curtain is curved toward the outdoor side, the locking recess is locked to the ridge to release the shutter. Architectural shutter characterized in that both ends of curtain are configured to restrict slipping out of guide rail. 2. The architectural shutter according to claim 1, wherein the ridge is also used as a pocket portion having an airtight piece mounting groove.

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