JP2517231Y2 - shutter - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter device in which, for example, a shutter curtain in which slats and pipes are connected and a sheet-like shutter curtain are provided together.

[0002]

2. Description of the Related Art For example, a fireproof / smokeproof shutter is constructed by connecting a shutter curtain made of a fire-resistant and heat-resistant sheet to the front side of a shutter curtain formed by connecting metallic slats. This prevents the shutter from being heated and deformed by direct exposure to the flame. Also, when a shutter curtain consisting of pipes connected vertically is used as a fire / smoke-proof shutter, a shutter curtain made of a fire-resistant and heat-resistant sheet is added and doubled, as in the above. The smoke is blocked by covering the transparent part. In addition, the shutter attached to the frontage of the store has a pattern with a high advertising effect on its surface so that it is eye-catching even after closing the store, but the shutter curtain that connects the slats has irregularities at the connection part. Since it is formed, it is not possible to express a fine pattern, so a sheet-shaped shutter curtain capable of printing a fine pattern is sometimes provided.

[0003]

[Problems to be Solved by the Invention] However, in such a double shutter curtain,
Since a guide rail having a double groove must be used, a guide rail with a specification different from that of a normal shutter guide rail must be manufactured, which increases the types of guide rails and makes inventory management troublesome. was there. Then, this invention makes it a technical subject to make it possible to provide a double shutter curtain, without using two guide rails.

[0004]

In order to solve this problem, the present invention relates to a shutter provided with a first shutter curtain and a sheet-shaped second shutter curtain which is moved up and down along the shutter curtain. , Guiding the second shutter curtain with the first shutter curtain fully closed at both left and right ends of the first shutter curtain guided by guide rails provided on both the left and right sides of the opening of the building It is characterized in that a guide groove is formed.

[0005]

According to the present invention, the first shutter curtain is lifted and lowered by being guided by the guide rails disposed on the left and right sides of the opening, and the second shutter curtain is moved on the left and right ends of the first shutter curtain. It is guided up and down by being guided by the guide groove formed in the. Therefore, when the first shutter curtain is closed, the guide grooves for guiding the second shutter curtain are formed vertically on the left and right sides of the first shutter curtain.
The guide rail need only be a single guide rail that guides only the first shutter curtain.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on the embodiments shown in the drawings. 1 is a side view showing a shutter according to the present invention, FIG. 2 is a perspective view thereof, and FIG. 3 is a schematic configuration diagram showing an opening / closing drive device.

In FIG. 1, reference numeral 1 denotes a first shutter curtain 3 formed by vertically connecting metal rods 2, 2 ... And a sheet-shaped second shutter that is moved up and down along the shutter curtain 3. The shutter device includes a curtain 4. The winding drum 5 that winds the first shutter curtain 3 is formed in a substantially cylindrical shape and is arranged in the shutter case C. The winding drum 5 that winds the second shutter curtain 4 is wound in the winding drum 5. A shaft 6 is arranged.
A step is formed on the outer peripheral surface of the winding drum 5, and a slit 7 through which the second shutter curtain 4 is inserted and withdrawn is formed in the step along the longitudinal direction.

The rod 2 forming the first shutter curtain 3 is a half body 2a, 2 obtained by dividing a cylindrical shape into two semicylindrical shapes.
b, the left and right ends of each half 2a, 2b are fitted to the side links 8A, 8B and connected vertically.
The side links 8A and 8B are configured to be lifted and lowered by being guided by guide rails 9 arranged on both left and right sides of the opening, and the second shutter is provided between the half bodies 2a and 2b. The curtain 4 is formed so as to be inserted and guided. Fitting holes for fitting the diametrical portions of the respective halves 2a and 2b in the connecting portion 10 of the side link 8A individually at a distance larger than the thickness of the sheet of the second shutter curtain 4 in a state of facing each other. 10
a and 10b are formed.

In addition, the side link 8B connected to the upper and lower sides of the side link 8A has a circular fitting hole 11 which is connected to the rods 2 fitted in the fitting holes 10a and 10b so as to be rotatable back and forth. Are formed. Further, the second shutter curtain 4 is provided on each side link 8A, 8B.
Guide grooves 12 are formed to guide the left and right ends.
The rod 2 at the upper end of the shutter curtain 3 is attached to the slit 7 of the winding drum 5, and the second shutter curtain 4 unwound from the winding drum 5 is guided between the halves 2a and 2b. It is formed to be.

The second shutter curtain 4 is formed of, for example, a metal sheet, a fireproof sheet, a net, or the like, and has a lower end portion to which the shutter curtain 4 is attached when the winding shaft 6 is rotated in the winding direction. A metal plate 13 serving as a weight for guiding the guide groove 12 is attached.

Reference numeral 14 denotes an opening / closing drive device for opening and closing the first and second shutter curtains 3 and 4, and an opening / closing device 15 for rotating the winding drum 5 and a winding shaft 6.
And a controller 17 for rotating them simultaneously or separately. And
When the first shutter curtain 3 is unwound from the take-up drum 5 and is fully closed, the controller 17 drives only the opening and closing device 16 of the take-up shaft 6 to rotate in the forward and reverse directions. The switches 15 and 16 are driven to rotate forward and backward so that the winding drum 5 and the winding shaft 6 are rotated at the same rotation speed when the winding drum 5 is fully opened after being wound into the drum 5. Therefore, the winding drum 5
Is not rotated unless it is integral with the winding shaft 6, and the winding shaft 6 is not independently rotated unless the first shutter curtain 4 is fully closed.

With the first shutter curtain 3 fully closed, the winding drum 5 is adjusted so that the slit 7 is positioned downward, and the first shutter curtain 4 is vertically downward from the slit 7. The second shutter curtain 4 is configured so as to be stopped at a position where the metal plate 13 at the tip does not come off the guide groove 12 of the first shutter curtain 3 when fully opened. Has been done.

The above is an example of the configuration of the present invention, and its operation will be described below. When the first and second shutter curtains 3 and 4 are open, the winding drum 5
The second shutter curtain 4 is wound and accommodated therein, and the first shutter curtain 3 is wound along the outer peripheral surface of the winding drum 5. Then, when closing these, when the winding drum 5 and the winding shaft 6 are integrally rotated in the unwinding direction, first, only the first shutter curtain 3 is unwound.

When the first shutter curtain 3 is fully closed, the slit 7 of the winding drum 5 is opened downward and the first shutter curtain 3 is hung vertically downward from the slit 7. When only the winding shaft 6 is independently rotated in the unwinding direction, the second shutter curtain 4 is guided by the guide groove 12 of the first shutter curtain 3 and is lowered to be closed.

Next, when opening these, first,
If only the winding shaft 6 is rotated in the winding direction, the second shutter curtain 4 is wound around the winding shaft 6,
It is raised along the guide groove 12 and accommodated in the winding drum 5. Then, when the winding drum 5 is rotated in the winding direction at the same number of rotations as the winding shaft 6 with the second shutter curtain 4 fully opened, the first shutter curtain 3
Is lifted up along the guide rail 9, and is wound around the outer peripheral surface of the winding drum 5 and released.

As shown in FIG. 4, the first shutter curtain 3 connects the slats 20 vertically and forms guide grooves 21 for guiding the second shutter curtain 4 by folding back both left and right ends thereof. Alternatively, a guide groove may be formed along one side of the shutter curtain in the link that vertically connects the pipes at a predetermined interval. Further, as in the embodiment, not only the case where the winding shaft 6 is provided in the winding drum 5, but also the case where both are separately provided side by side. Further, the present invention can be applied not only to the case of opening and closing by the switches 15 and 16 but also to the type of opening and closing manually.

[0017]

As described above, according to the present invention, the first shutter curtain is moved up and down along the guide rail, and the second shutter curtain is left and right with the first shutter curtain fully closed. Since it is guided by the guide grooves formed at both ends, it can be used as a single guide rail used for normal shutters, and it is possible to reduce the number of types of guide rails and reduce the labor of inventory management. Has excellent effect.

[Brief description of drawings]

FIG. 1 is a side view showing a shutter device according to the present invention.

FIG. 2 is a perspective view thereof.

FIG. 3 is a schematic configuration diagram showing an opening / closing drive device.

FIG. 4 is a perspective view showing another embodiment.

[Explanation of symbols]

 2 ... Rod 3 ... First shutter curtain 4 ... Second shutter curtain 5 ... Winding drum 6 ... Winding shaft 7 ... Slit 9 ... Guide rail 12. ..Guide grooves 14 ... Opening / closing drive device

Claims (1)

(57) [Scope of utility model registration request] 1. A shutter comprising a first shutter curtain (3) and a sheet-shaped second shutter curtain (4) which is moved up and down along the shutter curtain (3), wherein The second shutter curtain with the first shutter curtain (3) fully closed at both left and right ends of the first shutter curtain (3) guided by guide rails (9) provided on both the left and right sides. A shutter characterized in that a guide groove (12) for guiding (4) is formed.