JP2569444Y2 - Shutter wind resistant structure - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a windproof structure of a shutter for preventing a wide shutter curtain installed in a large building, factory, warehouse, hangar, store, garage, etc. from coming off a guide rail due to wind pressure. About.

[0002]

2. Description of the Related Art Conventionally, as a windproof structure of a shutter, for example, as shown in FIG. 5, an L-shaped hook 12 is protruded on both sides of a slat 1 and a step 13a on which a hook 12 is hooked on a guide rail 13 is provided. It was formed as shown. Then, even if the shutter curtain C receives a strong wind pressure, the hook 12 is hooked on the step 13a of the guide rail 13, so that the shutter curtain C does not come off the guide rail 13.

[0003]

However, when the shutter curtain C receives a wind pressure higher than expected, the hook 12 is pulled and deformed as shown by a solid line in FIG. When the hook 12 is deformed in this manner, when the shutter curtain C receives a strong wind pressure, the hook 12 is pulled toward the center of the shutter as shown by a two-dot chain line, and the tip of the hook 12 is slightly moved by the step 13a of the guide rail 13. Caught on
The guide rail is likely to come off, and the opening of the guide rail is widened. In addition, the shutter curtain C
May come off the guide rail 13.

This invention has been made in view of the above points, and even if a strong wind pressure is applied, the shutter curtain does not come off from the guide rail and the opening of the guide rail does not expand. The purpose is to provide.

[0005]

In order to achieve the above-mentioned object, in the present invention, a double hook having a retaining hook formed on both sides thereof is projected from both ends of a slat. A guide rail having an inclined surface corresponding to the hook shape formed on the inner surface on the slat side is provided in the support frame of the opening of the building via a buffer material, and the wind resistance of the shutter in which the double hook of the slat is fitted into the guide rail. In the structure.

[0006]

In the embodiment, when the shutter curtain C receives a strong wind pressure, the shutter curtain C is curved as shown by a two-dot chain line in FIG. Then, both ends of each slat 1 in the shutter curtain C are pulled toward the center of the guide rail, and the hooks 2b, 2b of the double hook 2 press the inclined surfaces of the inclined guide rails 4, 4, and as a result, the frame As shown in FIG. 3, the opening side of the shaped guide rail 3 is shifted toward the center side, and the opening is narrowed, so that the double hook 2 becomes difficult to come off from the guide rails 3 and 4.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a windproof structure of a shutter according to the present invention will be described below in detail with reference to the drawings, in the case of a heavy shutter. FIG. 1 is a sectional view showing an example of an embodiment of a windproof structure of a shutter according to the present invention. FIG. 2 is an explanatory view of the double hook and the inclined guide rail. 1 and 2, the windproof structure of the shutter is constituted by a combination of a double hook 2 protruding from both ends of a slat 1 and an inclined guide rail 4 welded to a frame-shaped guide rail 3.

The double hook 2 protruding from both ends of the slat 1 has, for example, a bulged portion 2a formed at the tip thereof as shown in FIG. 2b, 2b are formed. The angle of inclination of the hook 2b is substantially the same as the angle of inclination of the inclined guide rails 4 and 4. The double hooks 2, 2 are desirably attached to each slat 1, but may be attached intermittently.

The frame-shaped guide rail 3 is erected in a support frame A attached to a wall 5 with hard rubber cushioning members 6 and 6 interposed therebetween. The support frame A is formed, for example, by connecting an inequilateral angle steel 8 to one side of a grooved steel 7 welded to the reinforcing bar 5a of the wall 5 by a bolt (not shown). The frame-shaped guide rail 3 is, for example, one in which both ends on the opening side of a C-shaped steel are extended inward, and stands up while maintaining a constant gap with the support frame A via cushioning materials 6 and 6 having an L-shaped cross section. Have been. The inclined guide rails 4 and 4
It has a trapezoidal cross section that is inclined downward on both sides, and the angles of the inclined surfaces 4a, 4a substantially coincide with the hooks 2b of the corresponding double hooks 2. In the embodiment, the guide rails are frame-shaped guide rails 3, inclined guide rails 4,
Although it is separate from 4, it can also be formed integrally.

The cushioning members 6 and 6 having an L-shaped cross section are made of, for example, hard rubber, and are joined to both corners on the slat 1 side of the frame-shaped guide rail 3 on the inner surface side, and to one surface on the outer surface side (the guide rail 3). (Both sides of the slat 1) and the inner surface of the unequal angle iron 8 and the slat 1 side with the perch 9. The above-mentioned perch 9 is, for example, a steel square pipe, one side of which is welded to the grooved steel 7 or the angled steel 8 of the support frame A, and the guide rails 3, 4 are fixed in position in the support frame A. I do.

In the above embodiment, when the shutter curtain C receives a strong wind pressure, the shutter curtain C is curved as shown by a two-dot chain line in FIG. Then, both ends of each slat 1 in the shutter curtain C are slat 1
Of the double hook 2
b and 2b press the inclined surfaces of the inclined guide rails 4 and 4, as a result, the opening side of the frame-shaped guide rail 3 is shifted toward the center side as shown in FIG. It is difficult for the guide rails 3 and 4 to come off.

[0012]

As described above, the wind-resistant structure of the shutter according to the present invention has a double hook having a hook for retaining and projecting from both ends of the slat. A guide rail having an inclined surface corresponding to the inner surface of the slat side is provided in the support frame of the opening of the building via a cushioning material, and a slat double hook is slidably fitted into the guide rail. is there.

Therefore, even if the shutter curtain receives a strong wind pressure, both ends of each slat in the shutter curtain are pulled toward the center, and the rake shape of the double hook presses the inclined surface of the inclined guide rail. As a result, the opening side of the frame-shaped guide rail is narrowed toward the center side, and the double hook does not fall out of the guide rail. Further, the opening of the shutter curtain is not deformed. Further, by forming the guide rails in a double structure, the guide rails can move freely and can flexibly respond. Then, both positive and negative pressures can be handled under the same conditions.

[0014]

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of an embodiment of a windproof structure of a shutter according to the present invention.

FIG. 2 is an explanatory view of a double hook and an inclined guide rail.

FIG. 3 is a schematic cross-sectional view showing a windproof action in a windproof structure of the shutter curtain of FIG.

FIG. 4 is an explanatory diagram of a state where a shutter curtain receives a strong wind pressure.

FIG. 5 is a cross-sectional view showing an example of a windproof hook in a conventional shutter.

[Explanation of symbols]

 Reference Signs List A support frame C shutter curtain 1 slat 2 double hook 2a bulging part 2b hook 3 frame guide rail 4 inclined guide rail 4a inclined surface 5 wall 6 cushioning material 7 grooved steel 8 unequal angle iron 9 stop

Claims (1)

(57) [Scope of request for utility model registration] 1. A guide rail having a double hook formed with a hook for retaining on both sides projecting from both ends of a slat, and an inclined surface corresponding to the hook of the double hook formed on an inner surface of the slat. A shutter is provided in the support frame of the opening of the building via a cushioning material, and a double hook of a slat is fitted into the guide rail.