JPH041278Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a shutter curtain that does not bend even when wind pressure is applied with the opening closed.

Generally, in order to open and close openings in buildings, etc.
A shutter is provided with a shutter curtain made up of a plurality of slats connected one above the other.
By the way, when a closed shutter curtain is subjected to pressing force due to strong winds during a typhoon, etc., the upper end of the opening is supported by the lintel, and the lower end is reinforced by the seat plate. Because there are
The closer the slats are to the center, the more likely they are to curve, and as shown in FIG. 3, there is a risk that the entire shutter curtain may curve and deform into a bulging shape as it moves downwind. Conventionally, windproof hooks were attached to both ends of the slats to prevent the shutter curtain from slipping out of the guide rail or becoming bent, but with this method, the work of attaching the windproof hooks to the slats was troublesome, and
There was also the inconvenience that the guide rail had to be of a special shape. Also, Jikko Sho 52
In the idea disclosed in No. 10859, it was proposed to connect and interpose a reinforcing single plate in the horizontal direction at an arbitrary part of the main body of the shutter, but with this configuration, the height of the shutter curtain at the opening Not only does it require non-contributing members, but it also has the disadvantage of notching both ends of the reinforcing veneer.

The present invention was devised in order to eliminate these drawbacks in view of the above-mentioned actual situation, and its main purpose is to provide a reinforcing means for the shutter curtain itself when it is closed. In a shutter curtain that can open and close an opening in a building, etc. by connecting slats vertically and winding them around a winding cylinder so that they can be freely unwound, the shutter curtain is located approximately at the center of the height of the opening when closed. The slat is characterized in that it is constructed of a reinforcing slat having a concave groove formed approximately in the center of the upper and lower widths of the slat and having a depth approximately equal to the amount of protrusion to the rear side of the upper and lower interlock portions. The purpose of this reinforcement is to provide a shutter curtain that will not be bent and deformed in a bulging shape toward the leeward side even under strong wind pressure such as a typhoon. .

The structure of the present invention will be explained based on the embodiment shown in the drawings. Reference numeral 1 denotes a shutter curtain, and the shutter curtain 1 is wound around a winding cylinder 2 installed above an opening in a building. It is rolled up so that it can be taken out and fed out, and is raised and lowered guided by guide rails 3 vertically erected on both sides of the opening to open and close the building opening. The shutter curtain 1 is constructed by connecting a plurality of slats 4 made of bent steel plates vertically by interlocking parts 7, and a seat plate 5 is attached to the lower end to close the opening. In this state, the upper end side is supported and reinforced by the lintel A, and the lower end side is supported by the seat plate 5.
reinforced by. At approximately the center of the opening height, as shown in FIG.
A reinforcing slat 6 is provided in which a groove is formed having a depth substantially equal to the amount of protrusion toward the back side of the reinforcing slat 6.

In the above configuration, if strong wind hits the shutter curtain 1 with the opening closed,
The above-mentioned shutter curtain 1 is pushed toward the leeward side by the pressing force of the wind acting on the entire surface, but there is an upper and lower interface at approximately the center of the height of the opening and approximately the center of the vertical width of the slat. Since the reinforcing slat 6 is provided with a concave groove having approximately the same depth as the amount of protrusion toward the rear side of the lock portion 7, the reinforcing slat 6 will not be bent even by strong pressing force. In addition, the shutter curtain 1 is supported and reinforced by the lintel A on the upper end side of the opening, and the seat plate 5 attached to the slat 4 can also be used as a reinforcing member on the lower end side. The slats 4 on both the upper and lower sides of the opening are not bent by wind pressure without the use of additional reinforcing means. Therefore, even if a strong pressing force is applied by strong winds during a typhoon or the like, the shutter curtain 1 will never curve and deform into a bulging shape toward the leeward. Furthermore, the reinforcing slat 6 can be formed by a simple process of forming a groove approximately in the center of the upper and lower widths of the slat. Also, shutter curtain 1
During the lifting and lowering operations, the groove formed in the reinforcing slat 6 can be used as a handhold, so there is no need to provide a separate handhold member. Furthermore, if the intermediate lock is installed in the groove of the reinforcing slat 6, the intermediate lock will not be damaged even in strong winds, and the surface plate of the intermediate lock can be accommodated in the groove, so that the front surface of the reinforcing slat 6 can be Since it does not protrude, there is no chance of damaging other overlapping slats 4 when winding up the shutter curtain.

In short, the present invention is a shutter curtain in which a plurality of slats are connected vertically and wound around a winding cylinder so that they can be freely rolled up and unwound to open and close openings in buildings, etc. The slat located approximately at the center of the height of the slat is reinforced by a reinforcing slat having a groove formed approximately at the center of the upper and lower widths of the slat with a depth approximately equal to the amount of protrusion to the back side of the upper and lower interlock portions. Because of this structure, the wind pressure strength of the shutter curtain can be improved without attaching reinforcing members to the slats or using specially shaped guide rails. Therefore, even if a pressing force due to wind pressure is applied to the shutter curtain in the closed state, the shutter curtain will bulge toward the leeward side at the mid-height position where the inward deformation is greatest. It is possible to reliably prevent curved deformation. In addition, when the shutter curtain is raised or lowered, the grooves formed in the slats act as a handhold, which is convenient, and the reinforcing slats form a horizontal striped pattern on the shutter curtain, creating shadows in the grooves.
It can enhance a novel aesthetic sense. moreover,
When the intermediate lock is attached to the groove of the reinforcing slat, the surface plate of the intermediate lock does not protrude from the surface of the slat, and other slats are not damaged when the shutter curtain is wound up.

[Brief explanation of the drawing]

The drawings show an embodiment of the shutter curtain according to the present invention, in which Fig. 1 is a front view of the shutter curtain, Fig. 2 is a perspective view of the main parts thereof, and Fig. 3 explains the prior art. FIG. 2 is a sectional view of a shutter curtain. In the figure, 1 is a shutter curtain, 2 is a winding cylinder, 3 is a guide rail, 4 is a slat, 5 is a seat plate, 6 is a reinforcing slat, and 7 is an interlock portion.

Claims (1)

[Scope of utility model registration request] A shutter curtain in which a plurality of slats are connected vertically and wound around a winding cylinder so that they can be freely rolled out and opened to open and close openings in buildings, etc.
The slat is located approximately in the center of the height of the opening in the closed state, and a concave groove is formed approximately in the center of the upper and lower widths of the slat with a depth that is approximately the same as the amount of protrusion to the back side of the upper and lower interlock portions. A shutter curtain characterized by being constructed of reinforced slats.