JPH0729197Y2 - Securing structure for guide rails of architectural shutters - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to a building shutter installed in an opening of a building, and more particularly, in a guide rail of the building shutter when the shutter is constructed to be wind resistant. It relates to a retaining structure.

[Prior Art] Generally, in this type of architectural shutter, a shutter curtain is guided by guide rails provided on both left and right sides of the opening, and is vertically moved up and down to open and close the opening. However, when the shutter curtain whose opening is closed receives wind pressure due to a strong wind such as a typhoon, the shutter curtain may be curved and may come off the guide rail.

Therefore, conventionally, as shown in FIG. 2, a slat a which constitutes a shutter curtain is provided with a wind resistant hook b, and when the shutter curtain is curved, the wind resistant hook b is formed on one guide wall d of the guide rail c. It is proposed to engage with the part e.

[Problems to be Solved by the Invention] However, in the shutter provided with the windproof hook b as described above, not only is it troublesome to attach the windproof hook b to the slat a, but also the step for the windproof hook on the guide rail c. Since it is necessary to provide the part e, the guide rail c
The cross-sectional shape of the guide wall d forming the groove becomes complicated, and furthermore, the windproof hook b when the shutter curtain is wound up.
However, there are drawbacks such that the winding diameter becomes large due to the overlapping of them, and the winding posture becomes one-sided so that the normal winding posture cannot be achieved.

[Means for Solving the Problems] In view of the above-mentioned circumstances, the present invention was devised with the object of providing a retaining structure for a guide rail of an architectural shutter that can eliminate these drawbacks. A guide groove in which guide rails having a U-shaped cross section are erected on both sides of a building opening, and both ends of a shutter curtain that moves up and down are formed between guide walls that are separated from and parallel to the bottom wall of the guide rail. In the architectural shutter configured to open and close the opening by guiding to, a movable guide portion that extends from the inside of the guide rail toward the opening and extends the guide wall is slidably accommodated inside the guide wall, In addition, a locking member that projects toward the guide groove is formed integrally with the movable guide portion, and an engaging member that engages with the locking member is provided between the bottom wall of the guide rail and the movable guide portion. Attached to the side edge of the shutter curtain located between the locking member and linked to the lateral movement of the shutter curtain toward the opening,
It is characterized in that the movable guide portion is configured to extend to the opening side.

[Operation] Therefore, according to the present invention, when a strong wind or a difference in atmospheric pressure is generated between the inside and the outside, the pressure applied causes the shutter curtain to bend and the shutter curtain moves laterally toward the opening. At this time, the engaging member attached to the side edge contacts the locking member of the movable guide portion, and the movable guide portion moves laterally and extends toward the opening along with the shutter curtain moving laterally.

As a result, the guide wall of the guide rail can be extended to allow a large swallowing dimension of the shutter curtain into the guide rail, and even if each slat bends due to the pressure received by the shutter curtain, the edge of the slat always guides. It is held in the rail and is prevented from coming off the guide rail.

[Embodiment] The configuration of the present invention will be described based on an embodiment shown in the drawings.

In FIG. 1 (a), 1 is a shutter, 2 is a guide rail, 3 is a slat that constitutes a shutter curtain, 4
Is a structural frame of a concrete building, 5 is an opening of the building, and the guide rail 2 is composed of a fixed guide portion 20 and a movable guide portion 10.

That is, the fixed guide portion 20 is integrally formed in a U-shaped cross section from the guide walls 21 and 21 on both sides which are separated and parallel to each other and the bottom wall 22 at the inner bottom, and each of the guide walls 21 and 21 is an inner guide wall. It has a double structure consisting of 21a and an outer guide wall 21b formed in parallel with the inner guide wall 21a at a slight distance, and both guide walls 21a, 21b are connected by a bottom wall 22 between them. A guide groove 23 that opens toward the opening portion 5 is formed.

Further, the movable guide portion 10 is formed by bending a steel plate into a thin U-shape in a horizontal cross section, and the inner flange 11 is formed.
A thin groove-shaped portion 14 is formed between the flanges 11 and 12 by the outer flange 12 and the bent portion 13 on the opening 5 side, and the groove-shaped portion 14 is fixed to the fixed guide portion 20. Inner guide wall 21a
The outer flange 12 of the movable guide portion 10 is fitted to the inner guide wall 21a of the fixed guide portion 20 and the outer guide wall 2 of the fixed guide portion 20.
It is inserted between 1b and each inner flange 11, 11
Will be stored in the guide groove 23, and
20 and the movable guide portion 10 are combined with each other so that the movable guide portion 10 extends toward the opening 5 side with respect to the fixed guide portion 20.

Further, the inner guide wall 21a, the outer guide wall 21b and the flanges 11 and 12 of the movable guide portion 10 are engaged with each other by a ridge.
15 and 16 are provided. The ridges 15 and 16 are provided in the inner guide wall 21a and the outer guide wall 21b at a position deep inside, and a pair of two ridges 25 near the tip and the tip portion. The ridges 26 are formed at opposing positions, and also on the movable guide portion 10 side,
The inner and outer flanges 11 and 12 each have a ridge 15 formed at the inner tip and a ridge 16 near the tip at opposite positions.

The ridges 15, 16, 24, 25 and 26 described above preferably have a horizontal cross section of a semi-circular shape, etc.
The respective thicknesses of both guide walls 21a and 21b extending from 22 and the inner and outer flanges 11 and 12 extending from the bent portion 13 of the movable guide portion 10, their elasticity, and the width of the guide groove 23 and the groove portion 14 And the positions where they are formed are defined by the ridges 15 in the inner portions of the two guide walls 21a and 21b of the fixed guide portion 20.
And the ridge 24 are engaged with each other to hold the movable guide portion 10 at the position where the movable guide portion 10 is housed. On the other hand, the interval between the ridges 15 and 16 is defined by Is equal to the interval.

On the other hand, the movable guide portion 10, each flange 11 inside the 10,
11, locking members 40, 40 are integrally projected toward the guide groove 23 side, and the bottom wall 22 of the fixed guide portion 20 is formed.
The engaging member 41 that engages with the locking member 40 is provided at the end 31 of the slat 3 located between the locking member 40 and the locking member 40.
Is installed.

The bent portion 13 further extends outward from the outer flange 12 to form a parting edge 17, covers the outer end portion of the guide wall 21 of the guide rail 2, and is a decorative material, and This portion can be used as a handle for pulling out the movable guide portion 10.

In the above-mentioned configuration, the opening 5 is opened by the shutter 1.
The engaging member 41 of the slat 3 is moved to the first
As shown in the figure (a), since it is located in the inner part of the guide rail 2 irrespective of the locking member 40, it does not affect the ascending / descending operation at normal time, and the conventional guide rail 2 is not affected. Similarly, the shutter curtain is driven up and down by being guided by the guide groove 23.

Here, when strong winds sway or a difference in atmospheric pressure between the inside and outside occurs in the opening 5 of the structural body 4 of the building, each slat 3 forming the shutter curtain is curved due to the pressure received, The side edges of the slats 3, 3 ... Deformed by the bending tend to be pulled out toward the opening 5, but at this time, as shown in FIG.
The engaging member 41 attached to the side edge of the movable guide portion 10 abuts on the locking member 40 projecting from the inner flange 11 of the movable guide portion 10, and the movable guide portion 10 moves laterally together with the laterally moving slats 3, 3. It moves and is pulled out toward the opening 5, and the width of the opening 5 is reduced by the protruding width of the movable guide portion 10.

Therefore, the size of the shutter curtain swallowed into the guide rail 2 can be made large, and even if each slat 3, 3 ... By the engagement, each end edge of the slat 3 is always held in the guide rail 2 to prevent the shutter curtain from being detached from the guide rail.

In the present embodiment, the guide walls 21, 21 on the guide rail 2 side
Although the movable guides 10 and 10 are slidably provided on both sides, the invention is not limited to this, and when the directions of the wind pressure and the internal / external pressure difference with respect to the shutter 1 are constant, that is, When the bending direction is fixed, the movable guide portion 10 may be attached only to the one guide wall 21 located on the low pressure side.

[Effects of the Invention] In short, according to the present invention, guide rails having a U-shaped cross section are erected on both sides of the building opening, and both ends of the shutter curtain moving up and down are parallel to the bottom wall of the guide rail. In a building shutter in which an opening is opened and closed by being guided by a guide groove formed between guide walls, a movable guide portion that extends from the guide rail toward the opening and extends the guide wall is provided inside the guide wall. A locking member that is slidably accommodated in the guide groove and that projects toward the guide groove side is formed integrally with the movable guide portion, and an engaging member that engages with the locking member is provided on the bottom wall of the guide rail. It is attached to the side edge of the shutter curtain positioned between the locking member of the movable guide section and linked to the lateral movement of the shutter curtain toward the opening so that the movable guide section extends toward the opening. Configured to Therefore, even if each slat bends due to the pressure received by the shutter curtain during strong winds or when there is a pressure difference between the inside and the outside, the engaging member attached to the side edge of each slat contacts the locking member. While it is pulled out in the direction of the opening together with the movable guide, as a result, the swept dimension of the shutter curtain into the guide rail can be kept constant, and the curved shutter curtain can be prevented from coming off the guide rail. Not only can you
By manually pulling out the movable guide part to the position protruding toward the opening part in advance, it is possible to set the swallowing dimension of the shutter curtain into the guide rail relatively larger than that when using a normal shutter, as described above. In addition, it can deal with predictable typhoons, bad weather, etc. in advance, and eliminates the use of conventional windproof hooks, but it is possible to securely prevent the shutter curtain from being pulled out from the guide rails. The original security of the shutter,
It has an extremely useful practical effect that the protective function can be firmly maintained.

[Brief description of drawings]

The drawings show an embodiment of a retaining structure for a guide rail of a building shutter according to the present invention. FIG. 1 (a) is a horizontal sectional view of the guide rail, and FIG. 1 (b) is a movable guide part. FIG. 2 is a horizontal cross-sectional view when extended, and FIG. 2 is a schematic plan view illustrating a conventional technique. In the figure, 1 ... Shutter, 2 ... Guide rail, 3 ... Slat, 4 ... Structural frame, 5 ... Opening part, 10 ... Movable guide part, 11 ... Inner flange, 12 ... Outer part Flange, 13
...... Bents, 14 ...... Grooves, 15, 16 ...... Rims, 20 ...... Fixed guides, 21 ...... Guide walls, 21a …… Inner guide walls, 21b…
… Outer guide wall, 22 …… Bottom wall, 23 …… Guide groove, 24,25,26
...... Ridge, 31 ... Slat end.

Claims (1)

[Scope of utility model registration request] 1. A guide groove in which guide rails having a U-shaped cross section are erected on both sides of a building opening, and both ends of a shutter curtain moving up and down are formed between guide walls spaced apart from and parallel to a bottom wall of the guide rail. In the architectural shutter configured to open and close the opening by guiding to, a movable guide portion that extends from the inside of the guide rail toward the opening and extends the guide wall is slidably accommodated inside the guide wall, A locking member that projects toward the guide groove is formed integrally with the movable guide portion, and an engaging member that engages with the locking member is provided.
The movable guide is attached to the side edge of the shutter curtain located between the bottom wall of the guide rail and the locking member of the movable guide, and is linked to the lateral movement of the shutter curtain toward the opening to connect the movable guide to the opening. A retaining structure for the guide rail of the architectural shutter, which is configured to extend to the side.