JPH0882172A - Panel shutter device - Google Patents

Abstract

PURPOSE: To prevent the flexure of a panel by providing a bracket equipped with rails, sprockets, etc., to an intermediate section of a long span of the panel divided into up and down and suspended in a liftable manner, and suspending the intermediate section of the panel. CONSTITUTION: An intermediate section between both right and left shutter panels 6 rising, falling, opening and closing along both right and left guide rails 1 and 1 and divided into a plurality of panels vertically is suspended through a sprocket 3c and a hanging section 13c. The sprocket 3c is made to rotate forwardly and reversely with the same driving device by means of sprockets 13a and 13b on both sides and the same axis Q and, at the same time, hanging sections 13a, 13b and 13c are biassed to the outside of the thickness W of the panel 6 and are mounted. In addition, a storing rail 4 is provided to a bracket 8, and the panel 6 is transversely moved and is stored. A long span of the shutter panel 6 is prevented from the flexure caused by its dead weight without taking any step to meet the reinforcement. By the constitution, the opening and closing and storing operation of the shutter can be made smoothly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel shutter device for raising and lowering shutter opening / closing openings of various buildings, and more particularly to a panel shutter device suitable for raising and lowering a panel having a large span.

[0002]

2. Description of the Related Art FIG. 9 is a schematic front view of a conventional panel shutter device, and FIG. 10 is an enlarged sectional view of a panel storage box portion in FIG. In the figure, reference numeral 1 denotes a pair of left and right guide rails arranged upright on both sides of a shutter opening / closing opening, and these guide rails 1 have openings for panel guides (panel fitting engagement portions) on their respective facing surfaces. And a U-shaped member having an integral structure.

A panel storage box (hereinafter, simply referred to as a storage box) 2 is disposed above the guide rail 1. Inside the storage box 2, a pair of left and right panels for driving the panel are located above the doorway. Sprocket 3, a pair of left and right storage rails 4 for panel suspension storage in which the front end side is located in the vicinity of the upper part of the sprocket 3 and the rear end side is gradually descending and inclined, and the left and right sprocket 3 are simultaneously driven in forward and reverse rotations. An opening / closing switch M is installed.

The left and right sprockets 3 have
A pair of left and right panel connecting chains 5 that move up and down in the guide rail 1 and can move to the storage rail 4 side in the storage box 2 are engaged with each other.

These left and right panel connecting chains 5 are composed of a plurality of upper and lower panels 6 that open and close between the guide rails 1.
Are connected in series on both sides of each.

That is, the long pins P are rotatably mounted on the left and right upper end surfaces of each panel 6, and the panel connecting chain 5 is connected to the long pins P.

A suspending roller R is attached to the long pin P, and the suspending roller R rolls on the accommodating rail 4 during a panel accommodating operation. Further, guide rollers R ₁ are attached to both lower sides of each panel 6, and the guide rollers R ₁
Is guided in a predetermined panel moving direction by a panel guide (not shown) provided in the storage box 2.

Next, the operation will be described. When the opening / closing device M is started in the panel storing direction in the shutter closed state in which the upper and lower panels 6 are extended between the left and right guide rails 1, the left and right sprockets 3 are indicated by arrows a in FIG.
By being rolled up in the direction, the respective panels 6 sequentially enter the storage box 2.

In the panel 6 which has passed through the sprocket 3 toward the panel storage direction (storage rail 4 side), the hanging rollers R on both upper sides of the panel 6 move onto the storage rail 4 and roll in the direction of arrow c. To do. Here, since the rear end side of the storage rail 4 is gradually inclined downward, the hanging roller R transferred onto the storage rail 4 rolls down due to the weight of the panel 6.

Thus, the panels 6 that have entered the storage box 2 as described above are suspended and stored in parallel on the storage rails 4 via the suspension rollers R on both sides of the upper portion thereof.

When the opening / closing machine M is reversely activated from such a panel storage state, the sprocket 3 is rotationally driven in the counterclockwise direction, so that the panels 6 are guided through the chain 5 to both guide rails. The guide rails 1 are sent out to close each other.

[0012]

The conventional panel shutter device is constructed as described above, and has a two-end support structure in which both left and right ends of each panel 6 are connected only by a pair of left and right panel connecting chains 5. As shown in FIG. 9, when the length (panel span) 1 of the panel 6 in the left-right width direction becomes long, as shown in FIG. There is a problem in that the portion is bent vertically downward due to its own weight, and the panel face plates fitted in the respective panels 6 are damaged or come off.

Therefore, if the cross-sectional area of the horizontal frame of each panel 6 is increased to increase the strength of each panel 6 in the vertical direction,
It is possible to suppress the bending of the panel 6 to some extent, but in this case, there is a problem that the thickness of each panel 6 must be increased, the weight thereof must be increased, and the capacity of the switch M should be increased. . Moreover, when the weight of each panel 6 is increased, the panel 6 may drop and cause a serious accident.

As another conventional example, Japanese Unexamined Patent Publication No. 1-
There is a panel suspension structure of a panel shutter disclosed in Japanese Patent Publication No. 210589 (hereinafter, referred to as a conventional publication). In FIGS. 6 (A), (B) and FIG. Parts are connected by a roller chain, the roller chain is meshed with a guide sprocket, and a mounting bar is provided at the lower edge of each panel, and a sub roller chain for suspension is connected to this mounting bar for suspension. A panel suspension structure is disclosed in which a sub roller chain is engaged with a guide sprocket in the lower part of the storage case.

That is, FIG. 6 (A) of the conventional publication,
In the panel suspension structure disclosed in (B) and FIG. 7, the panel is moved up and down by the feed operation of the left and right roller chains by the rotational drive of the induction sprocket, and the sub roller chain for suspension in the middle of the panel is moved during the up and down movement. Guides the lower end of the panel in a predetermined moving direction by idly rotating the guide sprocket, and the guide sprocket is simply a free-moving floating sprocket in which the sub roller chain for suspension is meshed as described above. Therefore, in order to rotate the guide sprocket by the lifting sub roller chain when the panel is moved up and down, the panel rigidity at the position closest to the guide sprocket must be increased,
Therefore, there is a problem that the panel has a large moment of inertia due to its large-section second moment structure.

Further, in the case of the conventional publication, the panel which has passed through the guide sprocket and the guide sprocket in the panel storage direction has two points in a double-supported state in which the traveling rollers at the left and right ends are supported by the left and right storage rails in the storage case. Since the panel is supported and stored, when the panel having a large panel span is stored, a bending phenomenon similar to that described in FIG. 9 occurs in the panel, and as a result, the sub roller chain for suspension is guided. There is a problem that the drawing operation of the panel is hindered by the irregular meshing state with the sprocket.

The present invention has been made in order to solve the above problems. Even if a panel has a large panel span, the panel is unnecessarily made into a large-section second moment structure without intentionally making it larger than necessary. In addition to avoiding weight reduction, the panel can be smoothly and reliably moved at all positions by preventing the panel from being bent at any position when the panel is moved up and down or stored. An object of the present invention is to obtain a panel shutter device that can reliably seal between panels.

[0018]

According to a first aspect of the present invention, there is provided a panel shutter device comprising a pair of left and right guide rails, which are vertically arranged on both sides of a shutter opening / closing opening and have a panel storage box at the top thereof, and these guide rails. A plurality of upper and lower panels that open and close between spaces, left and right hanging rollers attached to both left and right sides of the panel, and a left and right panel connecting chain that connects the panels in series on the left and right sides. , The left and right sprockets of the panel drive system which are arranged in the panel storage box and in which the left and right panel connecting chains are meshed with each other, and the suspension rollers of the panel which have passed through the left and right sprockets in the panel storage direction. A panel shutter device including a storage rail for freely supporting and suspending and storing the panels in a parallel state. An intermediate sprocket of a panel drive system that is axially supported between the rockets and located on the same axis as the left and right sprockets, and an intermediate sprocket that is meshed with the intermediate sprocket and that suspends the intermediate parts of each panel in series. Of the panel, a chain for suspending the intermediate portion of each panel, and a roller for suspending the intermediate portion of the panel that has passed through the intermediate sprocket toward the panel storage direction. A storage rail at an intermediate portion that is freely supported is provided, and the left and right sprockets and the intermediate sprocket are driven to rotate forward and backward on the same axis by the same switch.

According to a second aspect of the present invention, there is provided a panel shutter device, wherein at least a middle portion of each panel in the left-right width direction is biased to the outside of the thickness of the panel and protrudes upward from the upper edge portion of each panel. A suspending portion is provided, a panel connecting chain in the middle portion is connected to the panel suspending portion, and a suspending roller in the middle portion is pivotally supported.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below. Embodiment 1. 1 is a schematic perspective view of a main part of a panel shutter device showing Embodiment 1 of the present invention, and FIG.
2 is an enlarged side view showing an intermediate sprocket portion of FIG.
4 is a rear view of the panel between the guide rails of FIG. 3, FIG. 5 is a side view of FIG. 4, and FIGS.
Portions that are the same as or correspond to 0 are assigned the same reference numerals and redundant description will be omitted.

In the drawing, 3a and 3b are left and right sprockets of the panel drive system.
The a and 3b are rotatably mounted on the same axis line Q inside the left and right side walls 2a of the storage box 2 via sprocket shafts 7a and 7b.

Reference numeral 8 denotes an intermediate bracket arranged in the widthwise intermediate portion of the storage box 2.
An intermediate sprocket 3c of a panel drive system is provided on the front end side of the left and right sprocket 3 through a sprocket shaft 7c.
It is mounted rotatably on the same axis Q as a and 3b.

Then, the left and right sprockets 3a, 3b
And the sprocket shafts 7a, 7b and 7c of the intermediate sprocket 3c respectively have transmission sprocket 11 on the input side.
a, 11b and 11c are integrally fitted.

A drive shaft 9 parallel to the axis Q is disposed in the inner portion of the storage box 2, and the drive shaft 9 has an intermediate portion penetratingly supported by an intermediate bracket 8 and both end portions are stored. The mounting structure is supported on both left and right side walls 2a of the box 2.

The drive shaft 9 is attached to the left and right sprockets 3.
a, 3b input side transmission sprockets 11a, 11b
Output side transmission sprockets 10a, 10b corresponding to
And an output transmission sprocket 10c corresponding to the input transmission sprocket 11c of the intermediate sprocket 3c.
Are integrally fitted.

Then, the left and right output side transmission sprockets 10a and 10b and the input side transmission sprockets 1 are provided.
1a, 11b, and between the output sprocket 10c on the output side and the transmission sprocket 11c on the input side in the intermediate portion, endless transmission chains 12a, 12b, 1
2c is meshed and wound.

In this manner, the left and right sprockets 3a and 3b and the intermediate sprocket 3c of the panel drive system are connected to the drive shaft 9
The drive shaft 9 is driven to rotate forward and backward by the switch M shown in FIG.

In the above, panel connecting chains 5a, 5b and 5c are meshed with the left and right sprockets 3a and 3b of the panel drive system and the intermediate sprocket 3c, respectively, and these panel connecting chains 5a, 5b and 5c respectively The left and right end portions and the middle portion of the upper portion of the panel 6 are connected and suspended in series.

Here, a concrete example of the suspending means for connecting the panels 6 will be explained. Panel suspending portions 13a, 13b, 13c are provided at both left and right end portions and an intermediate portion of the upper portion of each panel 6. .

These panel suspension parts 13a, 13b, 1
As shown in FIG. 2, 3c is biased to have a gap G on the panel back surface 6c side which is the outside of the wall thickness W of each panel 6, and is perpendicular to a predetermined height from the upper edge portion 6a of the panel 6. It stands up in a shape.

The panel suspension parts 13a, 13b, 13
A hanging roller R is rotatably supported by a long pin P on one side of each upper end portion of c, and the panel connecting chains 5a, 5b, 5c are flexibly and rotatably connected to the long pin P. As a result, the respective panels 6 are connected to each other at the left and right end portions and the intermediate portion by the panel connecting chain 5a,
It is suspended in series by 5b and 5c.

Here, the chain 5a for connecting the left and right panels,
5b is disposed outside one side surface of the left and right panel suspension portions 13a and 13b and the left and right side surfaces of the panel 6, and the left and right suspension rollers R are disposed further outside than the left and right panel connecting chains 5a and 5b. Has been done. Further, the panel linking chain 5c in the middle portion is arranged along the side surface of the middle panel suspension portion 13c, and the middle panel suspension portion 13c is arranged.
The hanging roller R in the middle portion is arranged further outside than the panel connecting chain 5c in the middle portion.

When the panel is stored, the left and right hanging rollers R are provided on both side walls 2a in the storage box 2.
The left and right storage rails 4 (see FIG. 10) attached to the intermediate suspension roller R are supported by the intermediate storage rails 4 attached to the side surfaces of the intermediate bracket 8 as shown in FIG. It is supposed to be supported.

Next, the operation will be described. 4 and 5
As shown in FIG. 3, in the shutter closed state in which the upper and lower panels 6 are extended between the pair of left and right guide rails 1, as shown in FIG. 1 and FIG.
When a, 3b, 3c are simultaneously driven to rotate in the direction of arrow a, the three chains 5a, 5b, 5c are simultaneously wound up, and the chains 6a, 5b, 5c raise each panel 6 in the direction of arrow b. When driven, each panel 6 sequentially enters the storage box 2.

During the entry process and the process of hoisting the panel 6 between the guide rails 1, the panel 6 has three chains 5a, 5 at the left and right ends and the middle part.
Since the panels 6a and 6b are connected and suspended (supported at three points) by b and 5c, even if a panel having a long length 1 in the left-right width direction of each panel 6 is used, the middle portion in the left-right width direction of each panel 6 is 1 in 9
Unlike the conventional panel shown by the dotted line, it does not bend vertically downward due to its own weight.

On the other hand, each panel 6 is located at a predetermined height H above the upper edge 6a of the three panel suspensions 13a, 13b, 13c, and each long pin P of the three chains 5a, 5b, 5c. When the panels 6 sequentially entering the storage box 2 from the direction of the arrow b are moved in the direction of the arrow a along the outer periphery of the sprockets 3a, 3b, 3c by the long pins P, the panels 6 are connected to each other. The upper edge portion 6a of 6 does not interfere with the respective sprockets 3a, 3b, 3c at all, and the lower side of the respective sprockets 3a, 3b, 3c is indicated by an arrow a.
Smooth transitions parallel to the direction.

Then, the sprockets 3a, 3b,
Each panel 6 that has passed through 3c in the direction of arrow a is supported by the three suspension rollers R at the left and right ends and the middle portion being transferred and supported on the three storage rails 4 at the left and right and the middle. It is suspended and stored in a parallel manner in the storage box 2.

Even in such a panel housed state, each panel 6 is provided with three left and right and middle three portions as described above via three hanging rollers R at both left and right end portions and an intermediate portion.
Since the three storage rails 4 are in a so-called three-point suspended state, the conventional bending phenomenon of each panel 6 does not occur.

Next, as shown in FIGS. 1 and 2, three sprockets 3a, 3b, 3 from the above-mentioned panel storage state.
When c is simultaneously driven to rotate backward in the direction of arrow a ', the three chains 5a, 5b, 5c are simultaneously extended in the direction of arrow b', and each panel 6 is moved from inside the storage box 2 to between the pair of guide rails 1. In the direction of arrow b '.

Also at this time, the upper edge portion 6a of each panel 6 is smoothly extended in the direction of the arrow b'without any interference with the sprockets 3a, 3b, 3c.

When the lowest panel 6 stops contacting the ground, the lower edge portion 6b of the upper panel 6 sequentially contacts the upper edge portion 6a of the lower panel 6 and stops, so that the shutter fully closed position. When the panels 6 are joined together without any gap, the shutter opening / closing opening is completely shielded.

At this time, as shown in FIG. 2, the three panel suspending portions 13a, 13b, 13c rising from the upper edge 6a of each panel 6 are located inside the wall thickness W of the panel 6 toward the panel rear surface 6c. Since there is a gap G between the pair of guide rails 1 as shown in FIG. 4 and FIG.
There is no possibility that the three panel suspension portions 13a, 13b, 13c of each panel 6 come into contact with the lower edge portion 6b of the upper panel 6 by being extended in the direction of the arrow b'between.

Therefore, the upper edge portion 6 of the upper and lower panels 6 is formed.
The opening for opening and closing the shutter can be completely sealed by bringing the a and the lower edge portion 6b into close contact with each other.

At this time, in order to escape the three panel suspension portions 13a, 13b, 13c of each panel 6, it is absolutely necessary to make a device such as providing three notches in the lower edge portion 6b of each panel 6. Since the shutter opening / closing opening is not provided, the airtightness can be improved.

Also, even if the panels 6 rattle in the direction of the arrow d, which is the left-right width direction, while the upper and lower panels 6 are being extended between the pair of guide rails 1 in the direction of the arrow b ', Three panel suspension parts 13a of the panel 6,
There is no concern that 13b and 13c will be interfered by the upper panel 6.

Furthermore, the rattling of the panels 6 in the front-rear direction, which is the direction of the arrow e, causes no problem as long as the gap G is provided. Then, the rattling in the direction of the arrow e of each panel 6 fed out between the guide rails 1 is surely made within the range of the gap G by the upper hanging roller R and the lower guide roller R _{1 of} each panel 6. Regulated by.

Embodiment 2. 6 is a schematic perspective view showing a main part of a panel shutter device according to a second embodiment of the present invention, FIG. 7 is a rear view of the panel between the guide rails of FIG. 6, and FIG. 8 is a side view of FIG. .

In the second embodiment, the panel suspending portion 13c is provided only at the intermediate portion in the direction of the arrow d, which is the lateral width direction of each panel 6, and the panel suspending portion 13c is connected to the chain 5c at the intermediate portion. The panels 6 are connected to each other through the long pins P, and the long pins P of the chains 5a and 5b at the left and right ends are connected to each other.
The left and right ends of the above are connected together.

In this case, the chain 5 in the middle part
Only the step H ₁ between the long pin P of c and the long pins P of the chains 5a and 5b at the left and right ends makes the axis P ₁ of the sprocket 3 in the middle part in the storage box 2 coincide with the axis P of the sprockets 3a and 3b at the left and right ends. It is biased upward.

The second embodiment operates in the same manner as the above-described first embodiment and produces the same effect. However, when each panel 6 is housed in the storage box 2, the middle part of each panel 6 is moved below the middle sprocket 5c by the panel suspension part 13c, and the sprocket at both left and right ends of each panel 6 is moved. The inside of 5a and 5b will be moved.

In the first embodiment described above, three panel suspension portions 13a, 13b, 13c are provided on the upper edge portion 6a of each panel 6 and are connected to the three chains 5a, 5b, 5c. However, as in the second embodiment, the panel suspending portion may be provided only in at least an intermediate portion in the lateral width direction of each panel 6. Further, each panel 6 may be connected by a chain of four or more.

[0052]

As described above, according to the invention of claim 1, the left and right end portions and the middle portion of each panel are connected in series by a panel connecting chain, and these panel connecting chains are individually connected to the panel drive system. Since the sprocket is driven to rotate at the same time by meshing with the sprocket, the left and right ends and the intermediate part of each panel are simultaneously lifted / suspended and moved through the panel connecting chain. Even if the panel is large, the conventional bending phenomenon due to its own weight does not occur in the middle portion of the panel when the panel is moved up and down, and therefore, even if the panel has a large span, The effect that there is no need for a large-rigidity panel structure that has been increased or specially reinforced, but that the panel can be moved up and down smoothly at all times A.

Also, each panel is
Since it is suspended and stored by the left and right storage rails and the intermediate storage rail, it is said that a panel with a large span bends even at the storage position as in the conventional case where only the left and right ends of the panel are suspended and stored. There is no such thing.

As described above, since the panel does not cause a bending phenomenon at the time of raising / lowering movement and at any position of the storage position, the panel raising / lowering operation is always smoothly performed as described above, and the shutter is not completely operated. The effect is that the panels can be reliably joined together when closed.

Further, even if one panel connecting chain is damaged, the panels are suspended by the remaining several panel connecting chains, so that one panel connecting chain is damaged. There is an effect that the panel does not drop unexpectedly and causes a big accident, and therefore the safety is very high.

According to the second aspect of the present invention, the panel suspending portion, which is provided at least at an intermediate portion in the left-right width direction of each panel and to which the panel connecting chain of the intermediate portion is connected, is provided outside the thickness of each panel. Since it is biased and raised from the upper edge of the panel, the upper edge of each panel interferes with the sprocket of the panel drive system by the panel suspension when the panel is moved up or down, and the panel suspension is closed when the shutter is closed. The effect is that it does not interfere with the other party's panel.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a main part of a panel shutter device showing a first embodiment of the present invention.

FIG. 2 is an enlarged side view showing an intermediate sprocket portion in FIG.

FIG. 3 is a rear view of FIG.

FIG. 4 is a rear view of the panel between the guide rails of FIG.

FIG. 5 is a side view of FIG.

FIG. 6 is a schematic perspective view showing a main part of a panel shutter device according to a second embodiment of the present invention.

FIG. 7 is a rear view of the panel between the guide rails of FIG.

FIG. 8 is a side view of FIG. 7;

FIG. 9 is a schematic front view showing a conventional panel shutter device.

10 is an enlarged sectional view of a panel storage box portion in FIG.

[Explanation of symbols]

 1 Guide rail 2 Panel storage box 3a, 3b, 3c Panel drive system sprocket 4 Storage rails 5a, 5b, 5c Panel connecting chain 6 Panels 13a, 13b, 13c Panel lifting part M Switch R R Hanging roller W Panel meat Thickness

Claims (2)

[Claims] 1. A pair of left and right guide rails standing upright on both sides of a shutter opening / closing opening and having a panel storage box in the upper part, a plurality of upper and lower panels that are opened and closed between these guide rails, and left and right of the panels. Left and right suspension rollers attached to both sides, a left and right panel connecting chain that connects the panels to each other on both left and right sides, and a left and right panel connecting chain arranged in the panel storage box. The left and right sprockets of the panel drive system that meshed with each other, and the hanging rollers of the panel that passes through the left and right sprockets toward the panel storage direction are rotatably supported and the panels are suspended and stored in parallel. In a panel shutter device including a rail, the left and right sprockets are axially supported on the same axis line as the left and right sprockets. The intermediate sprocket of the panel drive system located at, the intermediate panel sprocket meshing with the intermediate sprocket and connecting and suspending the intermediate portions of the respective panels in series, and the intermediate chain of the panels. The left and right sprockets include a middle hanging roller and a middle storage rail that rotatably supports the middle hanging roller of the panel that has passed through the middle sprocket toward the panel storage direction. A panel shutter device, characterized in that the intermediate sprocket and the intermediate sprocket are driven to rotate forward and backward on the same axis by the same switch. 2. A panel suspension portion is provided at least at an intermediate portion in the left-right width direction of each panel and is biased to the outside of the thickness of the panel and protrudes upward from the upper edge portion of each panel. 2. The panel shutter device according to claim 1, wherein an intermediate part panel connecting chain is connected to the suspending part, and an intermediate part suspending roller is pivotally supported.