JPH047487A - Driving device for panel shutter - Google Patents

Abstract

PURPOSE:To miniaturize a storage box and to make it possible to promote safety by setting offset distances between a chain and a long pin provided to the external projecting end of a panel connecting plate. CONSTITUTION:Panels 6..., 7... having a plurality of up and down stages are linked with a chain 5, and a panel shutter driving device to interlock the chain with a sprocket 3 is provided. A panel connecting plate 50 provided with the external projecting end 50b projected outward in the diametral direction of the sprocket 3 on the circumference thereof connected to the chain 5 in series is provided to the device, and a long pin P2 is mounted to the external projecting end 50b. After that, each of the panels 6..., 7... is suspended on the long pin P2 so that it is capable of turning, and specific offset distances l1 and l2 are set between the chain 5 and the long pin P2. A circumferential speed of the long pin P2 is accelerated in comparison with a circumferential speed of the chain 5 on the circumference of the sprocket 3 in the case of rising and falling of the panels 6... and 7.... According to the constitution, up and down spaces between the panels 6... and 7... can be greatly narrowed between guide rails.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a panel shutter drive device that improves the means for lifting and lowering a plurality of panels that open and close shutter openings such as entrances and exits of buildings and windows. be.

[Conventional technology]

FIG. 8 is a schematic front view showing a conventional panel shutter device, and FIG. 9 is a schematic cross-sectional view showing a partially enlarged panel storage box in the panel shutter device of FIG.

First, in Fig. 8, reference numeral 1 denotes a pair of left and right guide rails that are placed upright on both sides of an opening for opening and closing a shutter such as an entrance/exit of a building or a window. It consists of a U-shaped member with a guide opening.

A panel storage box (hereinafter referred to as storage box) 2 is arranged above the guide rail 1.

As shown in FIG. 9, inside this storage box 2, there is a sprocket 3 for driving the panel up and down located above the entrance and exit, and a front end located near the top of this sprocket 3 with a rear end that gradually slopes downward. A support rail 4 for hanging and storing the panel is arranged.

A pair of left and right chains 5 are meshed with the sprocket 3 and can move up and down within the guide rails 1 and move to the support rail 4 side in the storage box 2.

These chains 5 have a normal configuration, and both sides of the chains 5 are fitted into and engaged with the guide rails 1 so as to be able to move up and down, and are arranged in a plurality of upper and lower panels that are vertically adjacent to each other between the guide rails 1. 6.7 are connected on both sides of each upper part.

As a linking means, a long pin P that also serves as a link pin is provided at the panel attachment part of the chain 5 and passes through the chain link connection part, and the long pin P rotates both sides of the upper part of each of the panels 6 and 7. It has a structure that allows it to be hung freely.

Further, an upper guide roller R1 is rotatably attached to the long pin P for transferring the panel onto the support rail 4 when storing the panel, which will be described later.

On the other hand, each of the panels 6.7 has a configuration shown in FIG. 9 as an example.

That is, each of the panels 6.7 has a shape in which a fitting protrusion 8 is provided in the longitudinal direction of the upper end of each panel, and a fitting groove part 9 is provided in the longitudinal direction of the lower end of each panel. When all the panels 6.7 are extended between the guide rails 1, so-called fully closed shutter, each of the panels 6.7
The fitting protrusions 8 and the fitting grooves 9 fit together, so that when the shutter is fully closed, the panel 6
7 so that there is no gap between them.

However, when storing the panel in the storage box 2,
The upper end fitting protrusion 8 of the lower panel 7 remains fitted into the lower end fitting groove 9 of the upper panel 6 which has risen along the guide rail 1 to the vicinity of the sprocket 3. If so, it becomes impossible to move the panel 6 laterally along the sprocket 3 toward the support rail 4 (in the panel storage direction).

Therefore, in order to allow each of the panels 6.7 to be moved laterally in the storage direction, the panels 6.7 in the unfolded state are placed between the guide rails 1 as shown in FIG. A gap (overlap margin) L is set to maintain the fitting protrusion 8 and the fitting groove 9 in a separated state, and each of the panels 6 and 7 is connected to each other at the panel spacing in this state as described above. They are connected by chain 5.

Further, near the entrance/exit in the storage box 2, there is a guide plate (lower panel guide) for guiding the lower guide rollers R2 rotatably supported at the bottom of both sides of each panel 6.7 in the panel entrance/exit direction. 10 is the arrangement.

Next, the operation will be explained. First, with each panel 6.7 suspended and stored on the support rail 4 in the storage box 2, when the sprocket 3 shown in FIG. 9 is rotated counterclockwise, the sprocket 3 is engaged Via the chain 5, the panels 6.7 on the support rail 4 are successively pulled in the unwinding direction. As a result, each panel 6.
The upper end of the panel 7 sequentially reaches the sprocket 3 and passes through the sprocket 3 along its circumference in the panel feeding direction. At this time, the lower guide roller R2 of each panel 6,'/ is guided by the guide plate 10 in the panel feeding direction.

In this way, the upper end of each panel 6.7 sequentially passes through the sprocket 3 in the panel payout direction, and at the same time, the lower guide roller R2 of each panel 6.7 passes through the guide plate 10 in the payout direction. Accordingly, each panel 6 above
．． 7 moves down sequentially along the guide rail 1.

During this lowering operation, when the lowest panel 6 is not yet in contact with the ground, the fitting protrusions 8 and the fitting grooves 9 between the panels 6 and 7 are in a non-fitting state.

However, when the lowest panel 7 touches the ground, the upper panel 6 descends on top of it, causing the panels 6 to
．． The fitting protrusions 8 and the fitting grooves 9 of 7 fit together, and the panels 6 and 7 are sealed together.

In this way, in the so-called shutter fully closed state in which all the panels 6.7 are completely extended between the guide rails 1, all the panels 6.7 are connected to the above-mentioned fitting convex strips 8. The fitting concave portion 9 is fitted to the fitting concave portion 9 to be sealed.

When the sprocket 3 is started to rotate in the reverse direction from such a fully closed shutter state, the panels 6.7 are sequentially pulled up from the uppermost one via the chain 5 meshed with the sprocket 3.

By this pulling up, the fitting between the fitting protrusions 8 and the fitting grooves 9 between all the panels 6.7 is sequentially released, and in this state, each panel 6.7 is removed from the storage box 2. They are gradually entering the interior.

When the upper end of each panel 6.7 that has entered the storage box 2 approaches the sprocket 3, the lower guide roller R2 of each panel 6.7 is guided into contact with the guide plate 10. The lower end portions of each of the panels 6, 7 are forcibly swung in the panel storage direction by the guide plate 10 via the respective lower guide rollers R2.

At this time, contact between the lower end of the upper panel 6 and the upper end of the lower panel 7 is avoided by overlapping them.

Therefore, each panel 6.7, which has entered the storage box 2 in sequence and passed the sprocket 3 and the lower guide roller R2 in the panel storage direction as described above, has its upper guide roller R1 moved onto the support rail 4. It is stored suspended in a parallel folded state.

[Problem to be solved by the invention]

The conventional panel shutter device is constructed as described above, and the panels 6 and 7 are connected and suspended to the chain 5 by a long pin P that also serves as a ring pin of the chain 5, so that the circumference of the sprocket 3 is Since the moving speed of the panel along the sprocket 3 becomes equal to the circumferential speed of the sprocket 3 and slower than the lifting speed of the lower panel, in particular, in order to reliably prevent the panels from coming into contact with each other when the panels are stored,
You have to set a large amount of overlap between panels, and if you set a large amount of overlap,
Accordingly, the panel 6.7 had to be made smaller, and the smaller panel 6.7 had problems such as a smaller mounting opening area for a panel face plate such as a glass plate.

Also, as mentioned above, if the overlap substitute is increased,
Therefore, the height of each panel 6.7 must be increased, and it is necessary to accommodate the panel 6.7 and the guide plate 1.
The storage box 2 that requires 0 is inevitably large in size, which poses problems such as the installation location of the panel shutter is greatly restricted.

Furthermore, when lowering the panels, each panel 6.7 is lowered along the guide rail 1 with a gap between each panel 6.7 instead of overlap, so that the lowest panel 7 By grounding, the fitting protrusions 8 and the fitting grooves 9 of each panel 6.7 are fitted in sequence, and the space between the panels 6.7 is sealed, so that the panel is not lowered. Occasionally, there is a problem in that a hand or finger may be accidentally caught in the gap between the panels 6, 7 instead of overlapping each other, causing injury.

Claim 1 of the present invention has been made to solve the above-mentioned problems, and when driving the panels up and down, the vertical distance between the panels can be forcibly expanded or decreased within the panel storage box. It is an object of the present invention to provide a panel shutter drive device that can raise and lower a panel with a very small vertical interval between guide rails.

A second aspect of the present invention aims to provide a panel shutter driving device that can extremely reduce the space above the sprocket in the panel storage box.

[Means for Solving the Problems] The panel shutter drive device according to claim 1 of the present invention includes:
A chain connects multiple levels of panels, which are driven up and down so that they can be moved up and down along a pair of left and right guide rails that are placed upright on both sides of the shutter opening and closing, into a panel storage box above the rails. In a panel shutter drive device that meshes with a sprocket for driving a panel arranged in a panel storage box, the chain is connected in series at a predetermined panel connection pitch, and the diameter of the sprocket is connected on the circumference of the sprocket. a panel connection plate having an outwardly projecting end projecting outward in the direction;
and a long pin attached to the outwardly protruding end of the panel connection plate, each of the panels is rotatably suspended by the long pin, and the chain is attached to the circumference of the sprocket when the panel is moved up and down. In order to make the circumferential speed of the long pin faster than the circumferential speed, a predetermined offset distance is set between the chain and the long pin.

The panel shutter drive device according to claim 2 of the present invention includes:
The panel connection plate is connected in parallel to the chain, and a predetermined offset distance set between the chain and the long pin is set between the length direction of the chain and the direction perpendicular to the length direction. It is set in the direction.

[Function] In the panel shutter drive device according to claim 1 of the present invention, when the sprocket is rotationally driven, the panel moves up and down along the guide rail together with the chain meshed with the sprocket, and in the process of the up and down movement, the panel shutter drive device moves up and down along the guide rail. When the panel connection plate of the chain reaches the sprocket, the panel connection plate moves along the circumference of the sprocket in the panel storage direction or the panel payout direction.

Here, since a predetermined offset distance is set between the long pin connecting the panel connecting plate and the panel to the chain, the panel connecting plate moves on the circumference of the sprocket. During the movement, a difference in circumferential speed occurs between the chain and the long pin, and the long pin moves on the circumference of the sprocket at a circumferential speed faster than the circumferential speed of the chain.

Therefore, when each panel suspended by each long pin moves on the circumference of the sprocket in the panel storage box, due to the difference in circumferential speed, the vertical spacing of each panel is forced within the panel storage box. The panels can be enlarged and reduced, and the panels can be raised and lowered with very small vertical intervals between the guide rails.

In the panel shutter drive device according to claim 2 of the present invention, since the panel connection plate is attached parallel to the chain, the panel connection plate is located below the sprocket when the panel is stored. Although the service plate is in a vertical position together with the chain, when the panel connection plate is pulled up to the top of the sprocket, the panel connection plate is changed to a horizontal position together with the chain.

Therefore, the long pin attached to the panel connection plate can be stored in the panel storage box without protruding high above the sprocket, so the upper end of the panel suspended by the long pin can be raised high above the sprocket. It can be stored in the panel storage box without protruding, and the space above the sprocket of the panel storage box can be made very small.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

Fig. 1 is a front view of the entire panel shutter drive device according to an embodiment of the present invention, Fig. 2 is a vertical cross-sectional side view of the same panel storage box, and Fig. 3 is a circumference of the sprocket of the panel connection plate. Schematic side view illustrating the operation of the fourth
Figures (A), (B).

(CL (D) is a schematic side view illustrating expansion and reduction of the vertical interval of the same panel, FIG. 5 is a side view illustrating the connection part between the chain and the panel connection plate, and FIG. 5 is a sectional view taken along the line Vl--Vl in FIG. 5, and FIG. 7 is a plan view taken along the ■-■ arrow in FIG. Duplicate explanations will be omitted.

First, in Figures 2 to 7, numeral 3 is a sprocket for driving the panel up and down arranged in the storage box 2 as in the conventional case, and this sprocket 3 is coaxially connected to the drive system sprocket 3a. , the drive system sprocket
- the motor M via the drive chain 3b meshed with 3a.
By arrow a.

It is designed to be rotated forward and backward in the a' direction.

A panel connection plate 50 is connected in series parallel to the chain 5 at a predetermined panel connection pitch to the panel attachment portion of the chain 5 meshed with the sprocket 3.

This panel connection plate 50 is longer than the normal link plate 5a of the chain 5, and has a shape that projects outward in the radial direction on the circumference of the sprocket 3.

This panel connection plate 50 has a base end 50a.
is caulked to both ends of one side of the ordinary link plate t-5a by a pair of link pins pi and pi'.

A link pin P2 is rotatably attached to the side of the outwardly protruding end 50b of the panel connection plate 50 opposite to the chain 5, and the long pin P2 rotates the upper end of each panel 6.7. suspended as possible.

Furthermore, a pair of upper guide rollers R1 are rotatably attached to the ends of the pair of link pins PI, PI' that connect the panel connection plate 50 to the chain 5, on the opposite side from the panel connection plate 50. ing.

Here, between the link pin P1 of the chain 5 on the side closer to the long pin P2 and the long pin P2, there are two directions: the length direction of the chain 5 and the direction perpendicular to the length direction. Predetermined offset distances p, , p2 are set. Note that the pitch P of the pair of link pins PI and Pi' is set to nl>P and 12<P.

Therefore, as shown in FIGS. 3 and 5, when the panel connection plate 50 moves on the circumference of the sprocket 3 in the directions of arrows a and a', the link pin P1 of the chain 5 A small radius r with respect to the center 0,
In contrast, the long pin P2 is moved circularly with a large radius r2. As a result, the panel connection plate 50 moves along the circumference of the sprocket 3 in the direction of arrow a.

In the process of moving in the a' direction, a circumferential speed difference occurs between the chain 5 and the long pin P2, and the long pin P2
is the moving speed of the chain 5 (circumferential speed of the sprocket 3)
It will move at a faster speed.

Furthermore, since the panel connection plate 50 is attached parallel to the chain 5, as shown in FIG. is in a vertical position together with the chain 5, but the panel connection plate 50
When the chain 5 is pulled up to the top of the sprocket 3, the panel connecting plate 50 is changed to a horizontal position together with the chain 5. Then, when the panel connection plate 50 is changed from the horizontal attitude to the vertical attitude, a displacement amount of the vertical interval 13 corresponding to 1++lz occurs between the upper and lower sides of each panel 6.7.

Further, as shown in FIGS. 2 and 7, a pair of upper and lower support rails 40 are installed horizontally in the storage box 2 to sandwich each pair of upper guide rollers R1 from above and below and guide them horizontally. Further, a chain presser plate 10 is provided along the outer periphery of the sprocket 3 to guide the outer side of the chain 5, and a chain guide plate 10 for guiding the lower side of the chain 5 is provided near the panel storage position side of the sprocket 3.
1 is provided. Further, a pair of chain sandwiching plates 12 for vertically guiding the chain 5 are provided below the sprocket 3. Furthermore, storage box 2
The lower guide roller R2 of each panel 6.7 is placed on the lower end side of the inside.
A panel guide plate 17 for guiding is provided.

The fitting convex strips 8 and the fitting opening strips 9 of each panel 6.7 have a substantially triangular vertical cross section.

Next, the operation will be explained. As shown in FIG. 1, when the sprocket 3 is driven to rotate in the direction of arrow a, which is the panel storage direction, in the closed state where each panel 6.7 is extended between the guide rails 1, the sprocket 3 engages with the sprocket 3. Plate 50 for connecting each panel together with chain 5
As a result, each panel 6.7 moves upward along the guide rail 1 in the direction of the arrow, and enters the storage box 2 one after another.

At this time, each panel connecting plate 50 is raised in a vertical position together with the chain 5 in the direction of the arrow, so that each panel 6
．． 7 maintains the minimum distance L+ shown in FIG. 4(D).

As shown in FIG. 3, when the upper panel 6 is completely inserted into the storage box 2, the panel connecting plate 50, which suspends the upper panel 6 by the long pin P2, is positioned horizontally to the sprocket 3. At the same time, the lower guide roller R2 is guided into the panel guide plate 13.

After that, the panel connecting plate 50 moves circularly on the circumference of the sprocket 3 in the direction of arrow a, and the sprocket 3
While the panel connecting plate 5 is being pulled up to the top of the
0 is changed from a vertical position to a horizontal position together with the chain 5, and the long pin P2 moves from point D to point 0 and B shown in FIG.
A circular motion is made in the direction of arrow a with radius r2 through point A.

At this time, since the long pin P2 is moved at a faster speed than the moving speed of the chain 5 which is circularly moved in the direction of the arrow a with the radius rl, the upper panel 6 suspended by the long pin P2 is moved relative to the lower panel 7. Vertical interval I! , 3 is forced upward.

That is, long pin P2 moves from point D to point 0 and B in FIG.
While reaching point A through point A, the vertical spacing of each panel 6.7 changes from the minimum spacing L1 shown in FIG. 4(D) to FIG. 4(C).
, (B) and (A), L2. Ls, La
(However, L4'=42+). During this time, the fitting between the fitting protrusion 8 and the fitting groove 9 of each panel 6.7 is forcibly released, and the lower guide roller R2 of the upper panel 6 is moved by the panel guide plate 13. It is guided in the direction of arrow C in FIG. 3, which is the panel storage direction side.

After the panel connecting plate 50 is pulled up to the top of the sprocket 3 and assumes a horizontal position together with the chain 5, the panel connecting plate 50 remains in the horizontal position due to the continued rotational drive of the sprocket 3 in the direction of arrow a. It is transferred in the direction of arrow d, which is the panel storage direction.

At this time, the chain 5 is sandwiched from above and below between the chain presser plate 10 and the chain guide plate 11 and fed out horizontally in the direction of arrow d, so that the panel connection plate 50
is sent out horizontally together with the chain 5 in the direction of arrow d, and each pair of upper guide rollers R1 of the chain 5 is horizontally and smoothly transferred between the pair of upper and lower support rails 40.

Each panel 6. is suspended from the long pin P2.
7 is stored suspended in a folded and hanging state.

At this time, since the panel connection plate 50 is changed from a vertical position to a horizontal position and stored in the storage box 2, the long pin P2 is moved upward from the sprocket 3 by a small offset distance I! , 2 are stored in the storage box 2 with only 2 protruding. Therefore, the long pin P2 is offset upwardly from the sprocket 3 by a large distance I! , can be stored in the storage box 2 without protruding as high as 1.

Next, when the sprocket 3 is reversely rotated in the direction of arrow a' from this panel storage state, the sprocket 3
Each panel connecting plate 5 with chain 5 meshed with
0, each panel 6.7 has a pair of upper and lower support rails 40.
is sequentially transferred in the direction of the arrow d' along the sprocket 3, and sequentially fed out between the guide rails 1 in the direction of the arrow b'.

At this time, in the reverse operation of the above-mentioned operation, each panel connection plate 50 reaches the top of the sprocket 3 in a horizontal position, and then moves circularly on the circumference of the sprocket 3 in the direction of the arrow a'. At the same time, the lower guide roller R2 is also guided by the panel guide plate 13 in the direction of arrow C' force. Then, the long pin P2 moves from point A to point B shown in FIG.
While being circularly moved in the direction of arrow a' through point D to point D, the vertical spacing of each panel 6.7 changes from the maximum spacing L4 shown in FIG. 4(A) to FIG. 4(B), (C), As shown in (D), LI, L2. Each panel 6 is forcibly reduced to Ll.
．． The fitting protrusion 8 and the fitting groove 9 of No. 7 are fitted together.

Therefore, when each panel 6.7 is fed out from inside the storage box 2 between the guide rails 1 in the direction of arrow b', the vertical distance between each panel 6.7 becomes the minimum distance shown in FIG. 4(D). and is lowered in the direction of arrow b'.

〔Effect of the invention〕

As described above, according to claim 1 of the present invention, the panels are connected and suspended by the long pins attached to the outwardly projecting ends of the panel connection plates in the panel connection chain, and the long pins are connected and suspended between the long pins and the chain. Since a predetermined offset distance has been set, due to the circumferential speed difference that occurs between the chain and the long pin during the movement above,
By moving the long pins above faster than the sprocket circumferential speed, the vertical spacing of each panel suspended by each long pin is forcibly expanded within the panel storage box.

Since the panels are made smaller, the panels can be raised and lowered with very small vertical intervals between the guide rails. Therefore, it is possible to prevent an accident in which a hand or finger is accidentally caught in the gap between the top and bottom of each panel and injured when the panel is lowered.

In addition, the following panel does not collide with the panel that is moving along the sprocket, and the overlap between the panels can be reduced, so the mounting area of the panel face plate such as a glass plate on each panel can be reduced. The storage box can be expanded, the storage box can be made smaller, and restrictions on the installation location of the panel shutter can be greatly alleviated.

According to claim 2 of the present invention, the panel connecting plate is attached parallel to the chain, so that when the panel connecting plate is pulled up to the top of the sprocket during panel storage, the panel connecting plate is vertically attached to the chain. By changing the position from the horizontal position to the horizontal position, the long pin attached to this panel connection plate can be stored in the panel storage box without protruding high above the sprocket. The upper end of the panel can be stored in a panel storage box that projects high above the sprocket. Therefore, the space above the sprocket in the panel storage box can be made very small, and the vertical height of the entire panel storage box can be made very small.

[Brief explanation of the drawing]

Fig. 1 is a front view of the entire panel shutter drive device according to an embodiment of the present invention, Fig. 2 is a vertical cross-sectional side view of the same panel storage box, and Fig. 3 is a circumference of the sprocket of the panel connection plate. Schematic side view illustrating the operation of the fourth
Figures (AL) (B), (C). (D) is a schematic side view explaining the expansion and reduction of the vertical distance of the same panel, and Figure 5 explains the connection part between the same chain and the panel connection plate. 6 is a cross-sectional view taken along the Vl-Vl arrow in FIG. 5, FIG. 7 is a plan view taken along the ■-■ arrow in FIG. 5, and FIG. Fig. 9 is a schematic front view showing a partially enlarged panel storage box in the panel shutter device shown in Fig. 8. 1... Guide rail, 2... Storage box. , 3...
・Sprocket, 5... Chain, 6, 7... Panel, 50... Panel connection plate, P2... Long pin, 121, i! , z...Offset distance. Patent applicant Bunka Shutter Co., Ltd. Lumitter Industries Co., Ltd.

Claims (2)

[Claims] (1) Multiple tiers of upper and lower panels that are driven up and down so that they can be moved up and down into a panel storage box above them along a pair of left and right guide rails that are placed upright on both sides of the shutter opening/closing opening are connected by a chain. In a panel shutter drive device comprising a chain meshing with a panel drive sprocket arranged in the panel storage box, the chain is connected in series at a predetermined panel connection pitch,
A panel connecting plate having an outwardly projecting end projecting outward in the radial direction of the sprocket on the circumference of the sprocket, and a long pin attached to the outwardly projecting end of the panel connecting plate, the long pin The above-mentioned panels are rotatably suspended, and the above-mentioned chains and long pins are connected to each other in order to make the circumferential speed of the above-mentioned long pins faster than the circumferential speed of the above-mentioned chains on the circumference of the above-mentioned sprocket when driving the panels up and down. A panel shutter driving device characterized in that a predetermined offset distance is set between the two. (2) Connect the panel connection plate parallel to the chain, and set a predetermined offset distance between the chain and the long pin in the length direction of the chain and in the direction perpendicular to the length direction. 2. The panel shutter driving device according to claim 1, wherein the panel shutter driving device is set in two directions.