JPH0616081Y2 - Shutter device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a shutter device having an improved shape configuration of a panel constituting a shutter curtain.

[Conventional technology]

A conventional panel-type shutter device is vertically suspended on both sides of a shutter opening / closing opening, and has a pair of left and right vertical guide rails having a box for storing a panel at the top and a chain that is meshed with a sprocket in the box and is suspended. And a plurality of panels that constitute a shutter curtain, and the shutter curtain vertically moves between the vertical guide rails.

Such a panel-type shutter device generates less noise when opening and closing the shutter, can increase the area of the panel alone, and fits a transparent plate on the panel, as compared with the case of a conventional winding type slat shutter. It is possible to obtain a design aesthetic and there is an advantage.

[Problems to be solved by the invention]

However, the panel used in the conventional panel-type shutter device is formed by extruding light metal such as aluminum to form frames for upper, lower, left, right, and intermediate reinforcement, and these frames are framed into a front rectangular frame. Since it is integrated and the panel face plate such as a transparent plate is fitted in the frame, the number of parts of the panel component is large, and the number of processing and assembly steps is large, and the cost cannot be avoided. There was a point.

This invention has been made in order to solve the above problems, the shape configuration of the panel constituting the shutter curtain is simplified, the number of parts of the panel component is significantly reduced, and the cost can be reduced. An object of the present invention is to provide a shutter device that allows the panels to be fitted together without a gap when the shutter is fully closed.

[Means for solving problems]

In the shutter device according to the present invention, each of a plurality of panels constituting the shutter curtain has one panel face plate and a rising overlap piece portion on the front face side formed by folding the upper end side of the panel face plate to the back face side. And bending the turn-up piece of the rising overlap piece at a lower position from the upper end in a substantially right-angled direction, and further bending the bent piece at a position separated from the rising overlap piece. A mating recess is formed between the rising overlap piece and the rising folding step on the back side which is lower than the rising overlap piece and the lower end side of the panel are bent in the direction perpendicular to the back side. After that, by further bending in the hanging direction, a lower surface side engaging step portion whose surface side is formed in a depressed step shape so as to fit the rising overlap piece portion of the lower panel,
A fitting convex portion formed to bend the hanging piece portion of the lower surface side engaging step portion at the lower end side in the direction perpendicular to the back side and then further fold up to fit the fitting concave portion of the lower panel. It is integrally formed into a shape having and by plastically processing a single metal plate by roll processing or the like.

[Action]

In the shutter device of the present invention, each of the plurality of panels forming the shutter curtain is composed of one panel face plate integrally formed by plastically processing one metal plate by roll processing or the like, and Since the fitting recesses and fitting projections are integrally bent at the ends, the upper frame (upper frame) and lower frame (lower frame) that are separate from the panel face plate are no longer required as in the past. Become. For this reason, the number of parts of the panel constituting member is significantly reduced as compared with the conventional one, whereby the number of processing steps and the number of assembly steps are reduced, and the cost can be reduced. Further, when the shutter is fully closed, the fitting concave portion and the fitting convex portion are fitted,
There is no gap between the panels, and the fitting recess is a rising overlap piece on the surface side of the panel face plate, and the fitting projection is a lower surface side engaging step. Since the rising overlap piece engages with the lower surface side engagement step portion when the shutter is closed, there is no risk of fingers or the like being sandwiched between the panels, and the design aesthetic is improved. To do.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

Panel-type shutter device 1 shown in FIGS. 1 and 2
Is a panel storage box 2 arranged above the shutter opening / closing opening, and a pair of left and right vertical guide rails 3 standing upright on both sides of the shutter opening / closing opening and connected to the box 2. The guide rails 3 are vertically opened and closed, and a shutter curtain 4 housed in the box 2 is provided.

The shutter curtain 4 is composed of a series of upper and lower panels 5 connected to open and close between the vertical guide rails 3, and is held in a closed state where the vertical guide rails 3 are adjacent to each other in the same vertical plane. In addition, in the box 2, as shown in FIG. 6, they are suspended and housed in a folded state in which they are adjacent to each other in parallel.

More specifically, each panel 5 is shown in FIGS.
As shown in the figure, it is composed of one panel face plate 6 and vertical frames (vertical frames) 7 fitted on both sides of the panel face plate 6, and upper and lower parts of the panel face plate 6 are separate horizontal frames ( Horizontal frame) does not need to be provided.

That is, the panel face plate 6 is a metal plate made of a light metal such as aluminum or steel that is plastically processed by a roll process or the like. As shown in FIG. The fitting concave portion 8 and the fitting convex portion 9 are integrally formed.

More specifically, in the upper part of the panel face plate 6, a rising overlap piece portion 8a on the front surface side formed by folding back the upper end side of the panel face plate 6 to the back surface side, and folding back of this rising overlap piece portion 8a. The rising overlap piece is formed by bending a piece at a lower position from an upper end in a direction substantially perpendicular to the bent piece, and further bending the bent piece upright obliquely upward and bending it downward from the bent upper end. It has a back-side rising bent step portion 8b formed lower than the portion 8a, and the fitting concave portion 8 is integrally formed between the rising bent step portion 8b and the push-up contact portion 15. .

In addition, at the lower part of the panel face plate 6, the lower end side of the panel face plate 6 is shallowly bent at a right angle to the back side and then further bent downward, so that the lower surface side is a recessed lower surface side engaging step. The portion 9a is formed, and the vertical surface portion of the lower surface side engagement step portion 9a is bent in the direction perpendicular to the back side, and then the bent piece portion is raised obliquely upward and further raised in the vertical direction. The fitting protrusion 9 is formed by bending.

Further, each panel face plate 6 is integrally formed with a reinforcing rib 10 whose front side is depressed like a laterally long groove and which projects toward the back side.

As described above, the panel face plate 6 having such a shape is integrally formed by plastically processing a single metal plate by roll processing or the like.

The panel 5 is assembled by fitting the vertical frames 7 (see FIG. 3) having a U-shaped cross section on the left and right sides of the panel face plate 6 integrally formed in this way.

Each panel 5 configured as described above is shown in FIGS.
As shown in FIG. 8, FIG. 9, FIG. 13 and FIG. 13, a pair of left and right chains 2 are provided on both sides of each upper end via long pins 19.
It is connected to 0 at equal intervals.

Each of these chains 20 includes a pair of inner link plates 2
In the normal structure in which the 1 and the outer link plate 22 are sequentially connected by the bush 23 and the link pin 24, the link pin 24 at the mounting portion of the panel 5 is removed from the bush 23, and the long pin 19 is rotated there. The structure is freely inserted.

The chain 20 is vertically moved by being engaged with sprockets 31 and 32, which will be described later, of a panel elevating drive system provided in the box 2, so that the plurality of panels 5 are suspended by the chain 20. In this state, it can be moved up and down along the vertical guide rails 3 on both sides.

An upper roller 25 for hanging the panel is rotatably attached to the tip end side of the long pin 19.

In addition, the lower ends of both sides of each panel 5 have two side chains 2.
A lower roller 26 for raising and lowering a guide and for steadying is rotatably supported at a position deviated rearward from each center of 0.

On the other hand, in the box 2, as shown in FIG. 6, a chain slack sensing device 27 is provided near the upper end side of each of the vertical guide rails 3.

The chain slack sensing device 27 is provided for the chain 20 due to the folding weight or clogging of the panel 5 in the vertical guide rail 3.
Has a function of detecting the refracting power and the like, an alarm function at the time of the detection, or an automatic stop function of the panel elevating and lowering driving means 36 described later.

Further, in the box 2, as shown in FIGS. 6 and 7, a support rail for suspending and accommodating a panel, the front end of which is connected to the upper end of the vertical guide rail 3 via a chain / sprocket mesh separating device 28. 29 and a chain tip guide rod 30 parallel to the support rail 29 above.

The chain / sprocket mesh separating device 28 bends and transfers the chain 20 between the upper ends of the vertical guide rails 3 and the front ends of the support rails 29, and includes an outer chain release plate 28A and an inner chain release plate 28B. It consists of

These chain release plates 28A and 28B form a chain bending guide path 28C between them.

In this chain bending guide path 28C, as shown in the thirteenth illustration, the outside of the inner and outer link plates 21 and 22 of the chain 20 is in sliding contact with the outer chain separating plate 28A, and the bush 23 of the chain 20 is on the opposite side thereof. The inner chain release plate 28B is slidably contacted.

As a result, the chain 20 is smoothly bent and guided.

The rear side of the support rail 29, which is separated from the chain / sprocket mesh separating device 28, gradually inclines downward, and the upper roller 25 of the chain 20 that has passed through the chain bending guide path 28C engages and rolls. The panels 5 are suspended and held in a parallel folded state.

Here, as shown in FIG. 8, the support rail 29 includes a groove bottom portion 29a and both side wall portions 29b and 29c on both sides of the groove bottom portion 29a, and one side wall portion 29b thereof.
Is mounted on the side wall in the box 2.

On the other hand, the upper roller 25 is composed of a roller shaft portion 25a coaxially connected to the tip of the long pin 19 and a roller portion 25b integrally connected to the roller shaft portion 25a.

The outer peripheral surface of the roller portion 25b is engaged and supported on the groove bottom portion 29a of the support rail 29 in a surface contact state.

In this way, by bringing the roller portion 25b and the groove bottom portion 29a into surface contact with each other, sufficient strength can be obtained even if the upper roller 25 is integrally formed of synthetic resin or the like instead of metal.

Therefore, it is possible to reduce wear between the roller portion 25b and the groove bottom portion 29a, improve durability, reduce noise, and reduce costs.

The tip of the chain 20 is loosely fitted to the chain tip guide rod 30 so as to move the chain 20 following the panel 5.

Also, on both sides of the upper part of the box 2, the chain
A pair of left and right chain drive sprockets 31 and 32 are rotatably supported in the vicinity of the sprocket mesh separating device 28.

These sprockets 31 and 32 are coaxially and integrally connected by a rotary shaft 33.

As shown in FIGS. 8 to 10, the rotary shaft 33 is rotatably supported on both side walls of the box 2 via bearings 34, and the sprocket 31, 32 is integrally fitted to the small-diameter rotary shaft 33. It comprises shaft portions 33a and 33b and a large-diameter cylindrical shaft portion 33c that coaxially integrally connects these small-diameter rotating shaft portions 33a and 33b.

By the way, the rotary shaft 33 has a considerably long axial length corresponding to the lateral width of the panel 5, is heavy and easily bends, and the deflection causes the panel 5 to be guided and moved in the chain bending guide path 28C. The upper end of the rotary shaft 33
May interfere with the smooth transition of the panel 5.

Therefore, as shown in FIG. 10 to FIG. 12, by flexibly supporting the substantially middle portion of the large-diameter cylindrical shaft portion 33c by the U-shaped supporting member 35, the bending of the rotating shaft 33 is prevented. However, the rotation shaft 33 does not hinder the transition of the panel 5.

Here, the support member 35 is tightened and held by a nut N on the upper portion of the intermediate reinforcing frame member 2a in the box 2 as shown in FIGS. 11 and 12. Both ends of the supporting member 35 may be welded to the intermediate reinforcing frame member 2a, and the intermediate portion of the large-diameter cylindrical shaft portion 33c may be supported by the supporting member 35 via a bearing. .

Then, the chain 20 is attached to the sprockets 31 and 32.
Are in mesh.

In this case, as shown in FIGS. 6, 7, and 13,
The outside of the bent portion of the chain 20 bent by the chain bending guide path 28C is engaged with the sprockets 31 and 32, respectively.

In this way, the outer bent portion of the chain 20 is attached to the sprocket 3
By engaging the sprockets 31 and 32 with each other, the sprockets 31 and 32 can be arranged close to the upper corners of the box 2, whereby dead spaces near the sprockets 31 and 32 in the box 2 can be arranged. Can be reduced.

The sprockets 31 and 32 are normally and reversely rotated by the panel elevating and lowering drive means 36 shown in FIGS. 6 and 8.

The panel elevating and lowering driving means 36 is composed of a geared motor mounted on one side wall of the box 2 and has a first sprocket 37 on the output side fitted to the output shaft and one small diameter rotation of the rotating shaft 33. The second fitted to the shaft portion 33a
An endless chain 39 is wound around the sprocket 38, whereby the panel elevating drive means 36 and the both sprockets 31, 32 are interlocked. Therefore, the both sprockets 31 and 32 are third and fourth sprockets that rotate integrally with the rotary shaft 33.

In addition, in the lower part of the box 2 shown in FIG.
As shown in the figure, a lower rail 40 for preventing a panel steady is arranged in parallel with the support rail 29.

The lower rail 40 has a panel guide portion 41 whose front end side is connected to each vertical guide rail 3 on the inlet side of the box 2 and which is inclined in the same direction corresponding to the chain bending guide path 28C.

Here, the upper roller 25 of the panel 5 is connected to the support rail 2
9, when the lower rail 26 of the panel 5 moves while engaging with the lower surface of the lower rail 40, each panel between the lower rail 40 and the support rail 29. Each of the panels 5 is moved while being maintained in a vertical posture, so that each of the panels 5 is prevented from swinging.

Next, the operation of the above embodiment will be described. Since the upper roller 25 of each panel 5 is engaged and supported on the support rail 29 in the box 2 and the lower roller 26 is engaged with the lower surface of the lower rail 40, each panel 5 is folded in parallel. When the panel elevating and lowering driving means 36 is rotationally activated in one direction in a housed state in which it is suspended and held, the rotating shaft 33 is passed through each of the first sprocket 37, the endless chain 39, and the input sprocket 38 of the output system. Is driven to rotate in one direction.

Then, the chain 20 that connects the panels 5 held between the support rail 29 and the lower rail 40 to each other by the third and fourth sprockets 31 and 32 that rotate integrally with the rotary shaft 33. Is fed out from both vertical guide rails 3 from above.

As a result, each panel 5 is sequentially lowered between the vertical guide rails 3, and when the lowest panel 5 is grounded, the succeeding panels 5 are sequentially lowered to the upper portion thereof, so that the fitting recesses 8 in the upper portion of the lower panel 5 are brought into contact. The fitting protrusion 9 on the lower part of the upper panel 5 is fitted.

At the time of the fitting, the lower surface side engagement step portion 9a of the upper panel 5 is attached to the rising overlap piece portion 8a of the upper portion of the lower panel 5.
Are fitted and aligned.

In this case, since the rising overlap piece 8a is substantially flush with the surface of each panel 5, the design aesthetic when the shutter is fully closed is improved.

In addition, when the panel 5 is closed, the lower surface of the upper panel 5 is fitted into the fitting concave portion 8 formed between the rising overlap piece portion 8a and the rising bent step portion 8b of the lower panel 5 due to the inclined surfaces thereof. The fitting convex portion 9 is guided and fitted. Therefore, the panel face plates 6 are not bent or twisted, and the disadvantages between the panels 5 do not occur.

Further, even if a gap is formed between the panels 5, in this case, the rising overlap piece portion 8a shields the gap, so that an object is caught in the gap and the shutter breaks down or the fingers are narrowed. There is no such thing as relaxing.

When the panel ascending / descending driving means 36 is reversely rotated and activated in such a shutter use state, the chain 20 moves up the vertical guide rail 3 and enters the box 2.

In this case, the upper roller 25 of each panel 5 is engaged and transferred onto the support rail 29 via the chain bending guide path 28C of the chain / sprocket mesh separating device 28.

At the same time, the lower roller 26 of each panel 5 engages with the lower surface of the lower rail 40 via the panel guide portion 41 of the lower rail 40 and moves.

As a result, the swing of each panel 5 is prevented, and each panel 5 is sequentially stored in the folding suspended state in the box 2 by moving onto the support rail 29.

[Effect of device]

As described above, according to the present invention, each of the plurality of panels forming the shutter curtain is composed of one panel face plate integrally formed by plastically processing one metal plate by roll processing, Moreover, since the fitting concave portion and the fitting convex portion are integrally formed at the upper and lower ends thereof, the upper frame (upper frame) and the lower frame (upper frame) which are separate from the panel face plate as in the conventional case. ) Is unnecessary. For this reason, the number of parts of the panel constituent member is significantly reduced as compared with the conventional one, and thus, the number of processing steps and the number of assembly steps are reduced, and the cost is reduced.

Further, when the shutter is fully closed, the fitting concave portion and the fitting convex portion are fitted to each other, so that there is no gap between the panels, and the fitting concave portion rises to the surface side of the panel face plate. Since the fitting convex portion has a lower surface side engagement step portion, and the rising overlap piece portion engages with the lower surface side engagement step portion when the shutter is closed. Thus, there is no risk of fingers or the like being sandwiched between the panels, and the design aesthetics are improved.

[Brief description of drawings]

FIG. 1 is a front view of the entire shutter device according to an embodiment of the present invention, FIG. 2 is a side view of the same, FIG. 3 is an enlarged front view of a panel connected and suspended by a chain, and FIG. 4 is the same panel. Fig. 5 (a) is a sectional view taken along the line V-V in Fig. 3, Fig. 5 (b) is an enlarged sectional view of a bent rising portion, and Fig. 6 is an enlarged vertical side surface of a panel storage box. Fig. 7 is an enlarged view of the chain / sprocket mesh separating device mounting portion of Fig. 6, Fig. 8 is a sectional view taken along the line VIII-VIII of Fig. 6, and Fig. 9 is a vertical guide rail 3
10 is an enlarged cross-sectional view of FIG. 10, FIG. 10 is a configuration diagram of a panel lifting drive system, FIG. 11 is a cross-sectional view of a sprocket rotary shaft mounting portion, FIG. 12 is a cross-sectional view taken along line XIII-XIII of FIG. 11, and FIG. It is an expanded sectional view which follows the XIII-XII line of FIG.

Claims (1)

[Scope of utility model registration request] 1. A structure in which a plurality of upper and lower tiers of panels, which are connected to each other so as to be bendable by a pair of left and right chains, are vertically opened and closed along a pair of left and right vertical guide rails that are vertically arranged on both sides of a shutter opening / closing opening. In the shutter device, each of the panels includes one panel face plate, a rising overlap piece portion on the front surface side formed by folding the upper end side of the panel face plate to the back surface side, and a folding piece of the rising overlap piece portion. Part is bent at a lower position from the upper end in a substantially right-angled direction, and the bent piece part is further raised and bent at a position separated from the rising overlap piece part and fitted between the rising overlap piece part. Forming a mating concave portion, the rising fold portion on the back side, which is lower than the rising overlap piece portion, and the lower end side of the panel are bent in the direction perpendicular to the back side, and then further bent downward. The lower surface side engaging stepped portion whose surface side is formed in a stepped shape so as to fit the rising overlap piece portion of the position panel, and the hanging piece portion of this lower surface side engaging stepped portion is a right angle on the back side at the lower end side. After being bent in the same direction, it is further bent upright and plastically processed by roll processing or the like into a shape having a fitting projection formed to fit into the fitting recess of the lower panel. A shutter device characterized by being integrally formed by doing.