JP2551326Y2 - Locking mechanism for architectural shutter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an architectural shutter locking mechanism for automatically locking a shutter curtain when fully closed.

[0002]

2. Description of the Related Art In general, architectural shutters for opening and closing an opening by using a shutter curtain composed of a plurality of slats and guiding both ends thereof up and down by guide rails erected on the right and left are generally used in the opening of the building. I have. However, this type of architectural shutter has a small gap between the guide groove of the guide rail that guides the shutter curtain up and down and both ends of the shutter curtain, so if a strong wind blows when the opening is closed However, there is a disadvantage that the shutter curtain composed of a plurality of slats swings back and forth and comes into contact with the guide rail to generate a large noise.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned drawbacks, and it is intended to guide both ends of a shutter curtain up and down on a guide rail. When fully closed, the lowered shutter curtain is automatically locked to provide a lock mechanism for an architectural shutter that does not shake and generate a loud noise even when a strong wind blows. This is the objective.

[0004]

In order to solve the above-mentioned problems, a technical means taken by the present invention is to open and close a building opening by guiding both ends of a shutter curtain up and down by guide rails erected on the left and right. In the guide rail of the architectural shutter, the pair of inner and outer lock plates are urged so as to separate from the surface of the shutter curtain over the entire length thereof, and when the shutter curtain is fully closed, its own weight. The shutter plate is configured to press the inner and outer ends of the shutter curtain in response thereto, and the lock plate is formed of an elastic body.

[0005]

According to the present invention, therefore, a pair of inner and outer lock plates extending over the entire length of the guide rails are separated from the surface of the shutter curtain by the bias in the right and left guide rails. Both ends are smoothly guided up and down along the guide rail. Then, when the shutter curtain is fully closed, a pair of inner and outer lock plates receiving its own weight presses both ends of the shutter curtain from inside and outside across the entire length of the guide rail to automatically lock the shutter curtain. When the lock plate is made of an elastic material, when the shutter curtain is fully closed, the inner and outer ends of the lock are pressed against each other so that the shutter curtain is properly locked.
Can be

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the accompanying drawings. Reference numeral 1 denotes an architectural shutter provided at an opening of a building. The architectural shutter 1 is a guide in which a shutter curtain 3 composed of a plurality of slats 2 and 2 has both ends standing upright and left and right of the opening. The opening is opened and closed by being guided up and down by the rails 4 and 4 and wound up and wound back on a winding drum 6 in a shutter case 5 provided in a lintel portion. Reference numeral 7 denotes a guide groove provided on the guide rail 4 for guiding the both ends of the shutter curtain 3 up and down. Reference numerals 8 and 8 denote a pair of inner and outer lock plates provided inside the guide rail 4. The lock plates 8 and 8 sandwich both ends of the shutter curtain 3 over the entire length of the guide rail 4. . The lock plates 8 are connected to the inner surface of the guide rail 4 via connecting rods 9 to form parallel links. The connecting rod 9 is connected such that the connecting point 11 with the lock plate 8 is higher than the connecting point 10 with the guide rail 4, and as shown in FIG. Then, it separates from the surface position of the shutter curtain 3, and when it moves down, the distance between the opposed sides is reduced, and both inner and outer ends of the shutter curtain 3 are pressed. The lock plate 8 is formed of an elastic body.

Reference numeral 12 denotes a hook formed by bending the lower end of the lock plate 8 inward. The hook 12 faces the lower end of both ends of the shutter curtain 3 where the hook 12 moves up and down. 13
Is a spring interposed between the lower surface of the hook 12 and the bottom surface 14 of the guide rail 4.
Lock plate 8
Are urged in the upward movement direction away from the surface of the. In this state, the hook 12 is located near the lower end of the shutter curtain 3 when the opening is fully closed. Then, the shutter curtain 3 descends, and both ends thereof are hooks 12.
, The lock plate 8 receiving the weight of the shutter curtain 3 moves downward against the bias of the spring 13 and presses both ends of the shutter curtain 3 when it is fully closed from inside and outside.

In the above configuration, the guide rail 4
The lock plates 8, 8 provided inside the shutter curtain are always separated from the surface of the shutter curtain 3 by the bias of the spring 13, so that the shutter curtain 3 is guided up and down by the guide rail 4 to smoothly open and close the opening. can do. When the shutter curtain 3 is lowered to the fully closed position, both ends of the shutter curtain 3
And the lock plate 8 receiving its own weight moves down. At this time, the connecting rod 9 pivots downward about the connecting point 10, and the lock plates 8,
The distance between the opposing surfaces of the shutter curtain 3 is reduced, and both ends of the shutter curtain 3 are pressed in a wide range over the entire length of the guide rail 4. For this reason, the shutter curtain 3 when fully closed is automatically locked, so that even if a strong wind blows, the shutter curtain 3 does not swing and generate noise. In addition, since the lock plate 8 formed of an elastic body is in close contact with the inner and outer ends of the shutter curtain 3, the shutter curtain 3 can be satisfactorily formed.
Can be locked . On the other hand, when the opening is opened, the lock plate 8 is moved upward by the bias of the spring 13 as the shutter curtain 3 is lifted up, separated from the surface of the shutter curtain 3 again, and the lock is released.

[0009]

[Effects of the Invention] In short, the present invention is based on the above-mentioned guide rail of the architectural shutter in which both ends of the shutter curtain are guided up and down by the guide rails erected on the left and right to open and close the opening of the building. A pair of inner and outer lock plates are urged so as to separate from the surface of the shutter curtain over the entire length, and when the shutter curtain is fully closed, the inner and outer ends of the shutter curtain are pressed under their own weight. Further, since the lock plate is formed of an elastic body, both ends of the shutter curtain can be guided up and down on the guide rail to open and close the opening of the building. A pair of lock plates inside and outside receive the weight of the shutter curtain and both ends of the shutter curtain Since pressure from inside and outside in a wide range across the entire length of the guide rail, it is possible to lock the shutter curtain automatically. For this reason, even if a strong wind blows, the shutter curtain does not swing back and forth and does not generate noise. In addition, the lock plate made of elastic material is pressed tightly on both the inner and outer ends of the shutter curtain.
Lock the shutter curtain properly.
Can be.

[0010]

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a main part.

FIG. 2 is a cross-sectional view of a main part.

FIG. 3 is an operation explanatory view.

FIG. 4 is a front view of the architectural shutter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Architectural shutter 2 Slat 3 Shutter curtain 4 Guide rail 5 Shutter case 6 Winding drum 7 Guide groove 8 Lock plate 9 Connecting rod 10 Connecting point 11 Connecting point 12 Hook 13 Spring 14 Bottom

Claims (2)

(57) [Scope of request for utility model registration] 1. An architectural shutter in which both ends of a shutter curtain are guided up and down by left and right guide rails to open and close a building opening. For the building, characterized in that the lock plate is biased so as to separate from the surface of the shutter curtain, and when the shutter curtain is fully closed, it receives its own weight and presses both inner and outer ends of the shutter curtain. Lock mechanism for shutter. 2. The lock mechanism according to claim 1, wherein said lock plate is formed of an elastic body.