JPH0996179A - Rolling-up type shutter opening and closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the size of a storing box, improve wind-endurance performance, and easily electrically drive a manually operated shutter by providing a motor-driven opening and closing mechanism along a shutter curtain in the vertical direction between right and left guide rails. SOLUTION: A motor-driven opening and closing mechanism 11 is disposed along the vertical direction of a shutter curtain 4 in the center between a pair of right and left guide rails which are disposed on both sides of an opening for opening and closing a shutter and provided with a storing box 2 on the upper side. That is, an upper fitting piece part 12a of a housing 12 of the motor- driven opening and closing mechanism 11 is fixed to the base of the storing box 2, and a lower fitting piece part 12b is fixed to a lower frame F of a window sash. In the fully opened state of a shutter, when an electric motor 13 is rotated, a slider 20 is moved through bevel gears 15, 16, a pulley and a belt 19. Thus, the shutter curtain 4 has the lowermost end pushed upward to be rolled up by a curtain rolling part 10 in the storing box 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll-up type shutter opening / closing device for raising and lowering a shutter opening / closing opening of a building, and more particularly to a roll-up type shutter opening / closing device having improved shutter curtain opening / closing means.

[0002]

2. Description of the Related Art FIG. 11 is a schematic perspective view showing a conventional roll-up type shutter opening / closing apparatus. In the figure, 1 is a pair of left and right guide rails standing upright on both sides of a shutter opening / closing opening. The guide rail 1 is made of a member having a substantially U-shaped cross section and having a vertically elongated opening on the opposite surface side.

Reference numeral 2 is a storage box disposed above the guide rail 1, and is provided with brackets 2a and 2b on both left and right sides. Reference numeral 3 is a slat having a plurality of upper and lower stages, which are vertically engaged between the left and right guide rails 1 and are engaged with each other so as to move up and down between the guide rails 1, and these slats 3 are flexibly and rotatably connected to each other. By doing so, the shutter curtain 4 is configured. 5 is the storage box 2
The shutter curtain winding means is arranged inside and winds the shutter curtain 4 in the storage box 2 in sequence.

The shutter curtain winding means 5 will now be described. FIG. 10 particularly shows an electric shutter curtain winding means, and 6 is provided between the left and right brackets 2a and 2b of the storage box 2. A pair of left and right wheels 10a and 10b are rotatably fitted to the shaft 6, and a plurality of auxiliary bars 10c parallel to the shaft 6 are horizontally mounted between the wheels 10a and 10b. Has been done.

In the above, the pair of left and right wheels 10a and 10b fitted to the shaft 6 and the auxiliary bar 10 are provided.
Reference numeral c represents a curtain winding unit 10. The curtain winding unit 10 has a coil-shaped balance spring connected to the wheel 10a or 10b whose one end is a fixed side and the other end is a movable side. It is equipped with S1.

The curtain winding section 10 is driven to rotate forward and backward by the electric motor 8 mounted on the bracket 2a on one side in the storage box 2 via the transmission chain 9 and the driven sprocket 7. ing.

[0007]

Since the conventional winding type shutter opening / closing device is constructed as described above and the shutter curtain winding means 5 is arranged in the storage box 2, the arrangement space for the electric motor 8 is secured. In order to do so, the storage box 2 has to be formed so as to project to the front, and there is a problem that the storage box 2 as a whole becomes larger accordingly. Further, the shutter curtain 4 extended from the inside of the storage box 2 is held only by the left and right guide rails 1 only at the left and right end portions thereof, so that the shutter curtain 4 becomes large especially when the span between the left and right guide rails 1 becomes large. There is also a problem in that the holding strength of the steel sheet is reduced, and thereby the wind pressure resistance performance is also reduced. Further, there is a problem that a great amount of labor is required when the shutter has to be opened and closed manually in an emergency such as a power failure.

The present invention has been made in order to solve the above problems, and it is possible to reduce the size of the storage box and to improve the wind pressure resistance of the shutter curtain having a large span. It is an object of the present invention to provide a roll-up type shutter opening / closing device that can be electrically operated and can be easily electrically operated.

[0009]

According to a first aspect of the present invention, there is provided a hoisting type shutter opening / closing apparatus which is provided with an electric opening / closing mechanism extending between the left and right guide rails along a vertical surface direction of the shutter curtain. An electric motor, a power transmission mechanism that transmits the rotational force of the electric motor to the shutter curtain as an up-and-down opening / closing force of the shutter curtain, and a front columnar housing that covers at least the power transmission mechanism. It is installed and fixed vertically between the left and right guide rails along the shutter curtain.

According to a second aspect of the present invention, there is provided a roll-up type shutter opening / closing device according to the first aspect of the present invention, wherein the power transmission mechanism is a transmission strip for performing an endless motion in a vertical direction by a rotational force of the electric motor. And a slider that is interposed between the transmission strip and the shutter curtain and that moves up and down with the endless motion of the transmission strip to open and close the shutter curtain. .

According to a third aspect of the present invention, in the winding shutter opening / closing device according to the second aspect, a connecting member is attached to the slider, and the connecting member is detachably attached to a lower portion of the shutter curtain. It has a different engaging portion.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below. It should be noted that the same or corresponding portions as those in FIG. Embodiment 1. 1 is a schematic front view showing a roll-up type shutter opening / closing device according to an embodiment of the present invention, FIG. 2 is a schematic perspective view of FIG. 1, FIG. 3 is a sectional view taken along line AA of FIG. 4 is a sectional view taken along the line BB in FIG.

Reference numeral 11 denotes an electric opening / closing mechanism which is arranged in the center between the guide rails 1 along the vertical surface direction of the shutter curtain 4. The concrete structure of the electric opening / closing mechanism 11 is based on FIGS. 5 to 7. Will be described below.

5 to 7, reference numeral 12 is a housing of the electric opening / closing mechanism 11, and this housing 12 is
Waterproof seal 12A with a longitudinal groove formed on the back side
Is formed of a vertically elongated hollow member having a front pillar shape and has an upper mounting piece 12a and a lower mounting piece 12b.

In the housing 12, an electric motor 13 and a power transmission mechanism 14 for transmitting the rotation output of the electric motor 13 to the shutter curtain 4 as a lifting / closing force of the shutter curtain 4 are unitized. .

More specifically, the electric motor 1
A bevel gear 15 on the main driving side is fitted to the output rotary shaft of 3, and a bevel gear 16 on the driven side is meshed with the bevel gear 15. An upper pulley 17 and a lower pulley 18 coaxial with the driven bevel gear 16 are arranged in the housing 12, and a belt 19 as a transmission member is wound around the pulleys 17 and 18. Has been done.

Further, a slider 20 is attached to one side of the belt 19 between the pulleys 17 and 18 (one side of the belt 19 which relatively moves left and right in FIG. 6). This slider 20 has a pair of rollers 2 on the left and right sides.
While two sets of 1 are provided, a protruding piece-shaped arm 22 is fixed, and the roller 21 is engaged with and supported by a vertical groove 12a formed inside the housing 12 and is rollable, The arm 22 is attached to the lowermost slat 3 of the shutter curtain 4.

Here, the mounting portion of the arm 22 and the lowermost slat (drainer) 3 will be described. The arm 22 and the lowermost slat 3 are detachably connected by a connecting member 24.

That is, the connecting member 24 has a hook-shaped engaging portion (engaging claw) 24a at the tip thereof.
4a is urged by a spring S2 in a direction to engage the engaging hole 3a provided in the lowermost slat 3.

Therefore, if the engaging portion 24a is pulled out from the engaging hole 3a by moving the connecting member 24 from the back side of the shutter curtain 4 against the spring S2 by an artificial operation, the arm 22 and the slat 3 can be pulled out. The connection with and can be easily released, and by the release, the shutter can function as a normal manually openable shutter.

On the other hand, the electric motor 13 has a cable 2
It is connected to the external controller 26 via 5 and is rotated in both forward and reverse directions by the activation of the external controller 26.

The electric opening / closing mechanism 11 configured as described above
The upper mounting piece 12a of the housing 12 is fixed to the bottom surface of the storage box 2, while the lower mounting piece 12b is fixed to the lower frame F of the sash such as a window.
It is vertically fixed along the shutter curtain 4 between the left and right guide rails 1.

Next, the operation will be described. When the electric motor 13 is rotationally driven by the activation of the external controller 26 by a switch operation in the shutter fully closed state in which the shutter curtain 4 is fully extended between the guide rails 1, the rotation of the electric motor 13 causes the bevel gear 15 to rotate. , 1
It is transmitted to the upper pulley 17 via 6. When the upper pulley 17 rotates, the belt 19 wound between the upper pulley 17 and the lower pulley 18 moves endlessly. With the endless movement, the roller 21 rolls and the slider 20 moves upward.

As the slider 20 moves, the lowermost end of the shutter curtain 4 is pushed upward.
As a result, the shutter curtain 4 becomes the storage box 2
When it enters the inside and is wound by the curtain winding unit 10, and the slider 20 reaches the vicinity of the lower portion of the storage box 2, the curtain storing operation ends.

When the electric motor 13 is driven to rotate in the reverse direction from such a shutter curtain storage state, the series of shutter curtains 4 are moved to the storage box 22 by the movement of the electric motor 13 to the lower side of the slider 20.
The guide rails 1 are sequentially fed out from the wound state, and the guide rails 1 are closed after a vertical downward movement along the guide rails 1.

Also, in the event of a power failure in the shutter closed state and other emergencies, the engaging portion 24a of the connecting member 24 located at the lowermost portion of the shutter curtain 4 resists the spring S2 and the engaging hole 3a of the lowermost slat 3 is formed. When the shutter curtain 4 is pulled out from the shutter curtain 4, the connection between the shutter curtain 4 and the slider 20 is released. Therefore, if the shutter curtain 4 is pushed up by an artificial operation, the shutter curtain 4 will be spring-loaded as in the case of a conventional manually openable shutter. S
The curtain winding unit 10 using the balance force of 1 is wound up. Therefore, it can be manually opened and closed in the event of a power failure and other emergencies.

Embodiment 2. In the first embodiment described above, the configuration in which the electric motor 13 is arranged in the vertical direction is shown. However, as shown in FIG. 8, the electric motor 13 is arranged in the horizontal direction and the electric motor 13 The pulley 17 may be directly attached to the output shaft. In this case, since the components corresponding to the bevel gears 15 and 16 in the first embodiment can be omitted, the number of components can be reduced and
The width of the housing 12 (dimension t in the drawing) can be made small, and the electric opening / closing mechanism 11 as a whole can be further downsized. The electric motor 13 may be horizontally placed inside the storage box 2.

Embodiment 3. Although the housing 12 and the mounting pieces 12a and 12b are integrally formed in the first embodiment described above, they may be formed separately. That is, the protruding piece 3 protruding vertically on the back of the housing 12.
0 is attached, and the attachment pieces 12a and 12b are each formed in a hook shape so that the projection piece 3 relative to the projection piece 30 is formed.
1 is formed. Then, the mounting pieces 12a and 12b are directly fixed to the storage box 2 and the lower frame F, respectively, and the protruding pieces 41 of the mounting pieces 12a and 12b and the protruding piece 40 of the housing 12 are assembled with bolts, nuts and the like. To do. With such a configuration, the electric opening / closing mechanism 11 can be easily attached and detached, and is particularly suitable when the electric opening / closing mechanism 11 is an obstacle when taking in and out a large luggage.

In the above embodiment, the pulley 17,
Although the case where the belt 19 is wound between 18 has been described, the belt 19 may be a transmission strip such as a chain or a wire, and depending on the type of the transmission strip, the pulleys 17, 18 may be, for example, It can be replaced with a sprocket or the like.

[0030]

As described above, according to the first aspect of the invention, since the electric opening / closing mechanism is provided between the left and right guide rails along the vertical surface direction of the shutter curtain, the shutter curtain is provided in the storage box. It is sufficient to provide only the winding storage space, and therefore the entire storage box can be downsized. In addition, the electric opening / closing mechanism can be unitized and easily attached to a manual wind-up type shutter opening / closing device, and there is an effect that an existing manual wind-up type shutter opening / closing device can be easily electrified. . Further, by providing this electric opening / closing mechanism, the entire electric opening / closing mechanism functions as a center pillar for reinforcing the shutter curtain between the left and right guide rails, and thus the strength of the roll-up type shutter opening / closing device is further improved. It also has the effect of improving wind pressure resistance.

According to the second aspect of the present invention, the power transmission mechanism has the transmission strip and the slider. Therefore, it is possible to smoothly transmit the power with a simple configuration. There is an effect that the electric opening / closing mechanism can be easily unitized.

According to the third aspect of the present invention, since the slider is provided with the connecting member, the shutter curtain can be manually opened and closed extremely smoothly even in an emergency such as a power failure. There is an effect that the electric opening / closing mechanism associated with the manual opening / closing can be prevented.

[Brief description of drawings]

FIG. 1 is a schematic front view showing a roll-up type shutter opening / closing device according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view of FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a sectional view taken along line BB of FIG. 1;

5 is an enlarged side cross-sectional view of the electric opening / closing mechanism in FIGS. 1 to 4. FIG.

FIG. 6 is an enlarged front cross-sectional view of the electric opening / closing mechanism in FIGS. 1 to 4.

7 is an enlarged plan cross-sectional view showing a detailed configuration of the electric opening / closing mechanism in FIGS. 1 to 4. FIG.

8 (a) is an explanatory view of a slat connecting portion in FIG. 7, and FIG. 8 (b) is a side view showing a connecting portion between a slider and a slat in FIG. 8 (a).

9 (a) is a schematic cross-sectional view showing a part of a roll-up type shutter opening / closing device according to another embodiment of the present invention, and FIG. 9 (b) is a sectional view taken along line CC of FIG. 9 (a). FIG.

FIG. 10 is a partial detailed view of a winding type shutter opening / closing device according to another embodiment of the present invention.

FIG. 11 is a schematic perspective view showing an example of a conventional roll-up type shutter opening / closing device.

[Explanation of symbols]

 1 Guide Rail 2 Storage Box 4 Shutter Curtain 5 Shutter Curtain Winding Means 11 Electric Opening / Closing Mechanism 12 Housing 13 Electric Motor 14 Power Transmission Mechanism 19 Belt (Transmission Material) 20 Slider 24 Connecting Member 24a Engagement Part

Claims (3)

[Claims] 1. A pair of left and right guide rails disposed on both sides of a shutter opening / closing opening and having a storage box at an upper portion, shutter curtains for opening and closing between the guide rails, and a storage curtain disposed in the storage box, and ,
A wind-up type shutter opening / closing device having a spring winding force for winding the shutter curtain to wind up the shutter curtain, wherein the shutter curtain is provided between the left and right guide rails. An electric opening / closing mechanism is provided along the vertical plane direction of the
A power transmission mechanism that transmits the rotational force of the electric motor to the shutter curtain as an up-and-down opening / closing force of the shutter curtain, and a front columnar housing that covers at least the power transmission mechanism, and the housing is provided between the left and right guide rails. 1. A roll-up type shutter opening / closing device, which is installed and fixed in a vertical direction along the shutter curtain. 2. The power transmission mechanism includes a transmission strip that performs endless motion in the vertical direction by the rotational force of the electric motor, and the transmission strip is interposed between the transmission strip and the shutter curtain. The roll-up type shutter opening / closing device according to claim 1, further comprising a slider that moves in the vertical direction with the endless movement of the strip material to open and close the shutter curtain. 3. A connecting member is attached to the slider, and the connecting member has an engaging portion that can be engaged and disengaged in a lower portion of the shutter curtain.
Roll-up type shutter opening and closing device described.