JP2535843Y2 - Panel shutter drive - Google Patents

Description

[Detailed description of the invention]

[Industrial applications]

The present invention relates to a panel shutter driving device in which a plurality of panel lifting / lowering driving means for opening and closing a shutter opening / closing opening such as a doorway of a building or a window is improved.

[Prior art]

FIG. 4 is a schematic front view showing a conventional panel shutter device, and FIG. 5 is a schematic sectional view showing a partly enlarged panel storage box in the panel shutter device of FIG. First, in FIG. 4, reference numeral 1 denotes a pair of left and right guide rails arranged upright on both sides of a shutter opening / closing opening such as a doorway of a building or a window. It is made of a U-shaped member having a guide opening. A panel storage box (hereinafter referred to as a storage box) 2 is disposed above the guide rail 1. As shown in FIG. 5, the storage box 2 has a sprocket 3 for driving the panel up and down, which is located above the entrance, and a front end located near the upper part of the sprocket 3 and a rear end which is gradually inclined downward. A support rail 4 for suspending and storing the panel is provided. The sprocket 3 is meshed with a pair of left and right chains 5 that can move up and down in the guide rails 1 and move to the support rails 4 in the storage box 2. These chains 5 are of a normal configuration, and both sides thereof are vertically slidably fitted into and engaged with the two guide rails 1, and a plurality of upper and lower panels vertically adjacent to each other between the guide rails 1 are provided. Both upper parts of 6,7 are connected. As a linking means, a long pin P serving also as a link pin penetrating the chain link connecting portion is provided in the panel mounting portion of the chain 5, and the long pin P pivots the upper sides of the panels 6, 7 on both sides. It is configured to be freely suspended. An upper guide roller R1 for rolling and transferring to the support rail 4 when the panel is stored, which will be described later, is rotatably attached to the long pin P. On the other hand, each of the panels 6 and 7 has a configuration shown in FIG. 5 as an example. That is, each of the panels 6 and 7 has a configuration in which a fitting ridge 8 is provided in the upper end longitudinal direction and a fitting concave ridge 9 is provided in the lower end longitudinal direction. When all the panels 6 and 7 are extended between the guide rails 1, that is, when the shutter is fully closed, the fitting ridges 8 and the fitting ridges 9 are formed between the panels 6 and 7. When the shutters are fully closed, no gap is formed between the panels 6 and 7. However, when the panel is stored in the storage box 2, the upper fitting protrusion 9 of the lower panel 7 engages with the lower fitting recess 9 of the upper panel 6 that has risen to the vicinity of the sprocket 3 along the guide rail 1. If the ridges 8 remain in the fitted state, it becomes impossible to laterally feed the upper panel 6 along the sprocket 3 toward the support rail 4 (panel storage direction). Therefore, in order to allow the panels 6 and 7 to be traversed in the storage direction, between the panels 6 and 7 deployed between the guide rails 1 as shown in FIG. A gap L for maintaining the fitting ridge 8 and the fitting ridge 9 in a separated state is set, and the panels 6 and 7 are connected to each other by the chain 5 as described above at the panel interval in this state. ing. A guide plate (lower panel guide) for guiding a lower guide roller R2 rotatably supported at the lower portion on both sides of each of the panels 6 and 7 in the panel entrance direction near the entrance in the storage box 2. 10 are arranged. Next, the operation will be described. First, in a state where the panels 6, 7 are suspended and stored on the support rails 4 in the storage box 2, when the sprocket 3 in FIG. 5 is started to rotate counterclockwise, the sprocket 3 meshes with the sprocket 3. The panels 6, 7 on the support rail 4 are sequentially pulled in the feeding direction via the chain 5. Thereby, the upper ends of the panels 6 and 7 sequentially reach the sprocket 3 and pass through the sprocket 3 along the circumference thereof in the panel feeding direction.
At this time, the lower guide rollers R2 of the panels 6 and 7 are guided by the guide plate 10 in the panel feeding direction. In this way, the upper end portions of the panels 6 and 7 sequentially pass through the sprocket 3 in the panel feeding direction, and at the same time, the lower guide rollers R2 of the panels 6 and 7 pass through the guide plate 10 in the feeding direction. Accordingly, the panels 6 and 7 sequentially move down along the guide rail 1. In the lowering operation, when the lowermost panel 6 is not yet grounded, the fitting ridge 8 and the fitting ridge 9 between the panels 6 and 7 are not fitted. However, when the lowermost panel 7 comes into contact with the ground, the upper panel 6 descends on top of it, and
The mating convex ridges 8 and the mating concave ridges 9 of 6, 7
The space between 6,7 is sealed. In this manner, in a so-called shutter fully closed state in which all the panels 6 and 7 are completely extended between the guide rails 1, all the panels 6 and 7 are fitted with the fitting ridges 8 as described above. It is sealed by the fitting of the fitting concave ridge 9. When the sprocket 3 is started to rotate in the reverse direction from the shutter fully closed state, the panels 6, 7 are sequentially pulled up from the topmost one via the chain 5 meshed with the sprocket 3. By this pulling up, the fitting of the fitting ridges 8 and the fitting ridges 9 between all the panels 6 and 7 is sequentially released, and in this state, the panels 6 and 7 are stored in the storage box 2. We come in sequentially. When the upper ends of the panels 6 and 7 that have entered the storage box 2 reach the sprocket 3, the lower guide rollers R2 of the panels 6 and 7 are guided by contact with the guide plate 10. The lower ends of the panels 6 and 7 are forcibly fed laterally in the panel storage direction by the guide plate 10 via the respective lower guide rollers R2. In that case,
Contact between the lower end of the upper panel 6 and the upper end of the lower panel is avoided by the gap L. As described above, the panels 6 and 7 that have sequentially entered the storage box 2 and have passed the sprocket 3 and the lower guide roller R2 in the panel storage direction are moved by the respective upper guide rollers R1 onto the support rails 4. It is suspended and stored in a parallel folded state.

[Problems to be solved by the invention]

The conventional panel shutter device is configured as described above,
The left and right sides of each of the panels 6, 7 are suspended by long pins P which also serve as link pins of the chain 5, and the respective panels 6, 7
Are parallel to the left and right sides of the sprocket 3, and the moving speed of the upper panel 6 along the circumference of the sprocket 3 becomes equal to the peripheral speed of the sprocket 3 and is lower than the elevating speed of the lower panel 7. In particular, there is a problem that the gap L between the panels 6 and 7 must be set large in order to reliably prevent the panels 6 and 7 from contacting each other particularly during the panel storing operation. Here, if the gap L between the panels 6 and 7 is set to be large without changing the mounting interval of the panels 6 and 7 to the chain 5 (the pitch of the long pins P between the panels 6 and 7),
The height of each of the panels 6 and 7 must be reduced, and the panels 6 and 7 with the reduced height have problems such as a decrease in the opening area for mounting a panel face plate such as a glass plate. Was. Also, without reducing the height dimensions of the panels 6 and 7,
If the gap L between the plates 6 and 7 is set to be large, the storage box 2 becomes large in the height direction corresponding to the setting, and there is a problem that the installation location of the panel shutter is greatly restricted due to this. The present invention has been made to solve the above-described problem, and it is possible to set a small gap between the panels, to reduce the size of the panel storage box, and to increase the panel face plate mounting area of each panel. It is another object of the present invention to provide a panel shutter drive device capable of smoothly and reliably storing and feeding each panel.

[Means for Solving the Problems]

The panel shutter drive device according to the present invention includes a plurality of upper and lower panels which are driven to move up and down along a pair of left and right guide rails arranged upright on both sides of a shutter opening / closing opening so as to be movable into an upper panel storage box. In a panel shutter drive device, wherein the sprocket is connected and fixed to the chain at a predetermined panel connection pitch, and the chain is meshed with a panel drive sprocket arranged in the panel storage box. A link plate for panel connection protruding radially outward on the circumference of the link plate, and a long pin provided on an outwardly projecting end side of the link plate, and an outwardly projecting end of the link plate via the long pin. The two sides of the panel are rotatably supported on the side.

[Action]

In the panel shutter driving device according to the present invention, when the sprocket is driven to rotate, the panel moves up and down along the guide rail together with the chain meshing with the sprocket, and the panel connecting link plate of the chain is moved in the process of moving up and down. When reaching the sprocket, the panel connecting link plate moves along the circumference of the sprocket in the panel storage direction or the panel extension direction. Here, the link plate for panel connection is fixedly connected to the chain and protrudes radially outward on the circumference of the sprocket, and the panel is supported by a long pin on the outwardly protruding end side of the link plate. An offset distance is set between the support point (long pin) of the panel with respect to the chain and the chain, so that the panel connection link plate moves between the chain and the long pin in the process of moving on the circumference of the sprocket. Has a peripheral speed difference. As a result, the long pin moves faster than the moving speed of the chain (sprocket peripheral speed), and the panel suspended by the long pin is smoothly transferred along the sprocket in the panel storage direction or the panel feeding direction.

【Example】

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic vertical sectional side view showing a main part of a panel shutter driving device according to an embodiment of the present invention, FIG. 2 is a vertical sectional front view thereof, FIG. The same or corresponding parts as those in FIG. 5 are denoted by the same reference numerals, and redundant description is omitted. In the figure, 3 is a storage box 2 as in the conventional case.
The sprocket 3 is a coaxially connected drive system sprocket 3a, and is connected to a switchgear (not shown) via a drive system chain 3b meshed with the drive system sprocket 3a. It is designed to be driven forward and reverse. A panel connection link plate 50 also serving as a chain link is connected to the panel mounting portion of the chain 5 meshed with the sprocket 3 at a predetermined panel connection pitch. The panel connecting link plate 50 is formed to be longer outward than the normal link plate 5a of the chain 5, and has a configuration projecting radially outward on the circumference of the sprocket 3. The link plate 50 for panel connection is caulked at its base end to the normal link plate 5a by a link pin P1. A long pin P2 is rotatably attached to the outwardly projecting end side of the panel connecting link plate 50, and the long pin P2 allows the upper part of each panel 6, 7 to be slightly rotatable from the middle abdominal part on both sides. Is held. Here, an offset distance a is set between the link pin P1 of the chain 5 and the long pin P2. Accordingly, in the process in which the panel connecting link plate 50 moves on the circumference of the sprocket 3, a peripheral speed difference occurs between the chain 5 and the long pin P2, and the long pin P2 is moved at the moving speed of the chain 5 ( Sprocket 3
(Peripheral speed). Therefore, the gap L1 between the panels 6 and 7 can be made smaller than the conventional gap L by the offset distance a, and the storage box 2 can be moderately compact by changing the offset distance a. On such a long pin P2, a suspension roller 51 for rolling and transferring onto the support rail 4 in FIG. 5 when the panel is stored in the storage box 2 in FIGS. 4 and 5 is coaxially rotated. Mounted freely. An upper guide roller R for preventing vibration is rotatably supported at the upper part on both sides of each of the upper and lower panels 6 and 7 suspended by the long pin P2. The upper guide roller R is movably fitted and engaged with a steady rest guide 12 disposed at a position above the sprocket 3 in the storage box 2, and is moved by the steady rest guide 12 in a panel storage direction or a panel feeding direction. It is guided in the direction. Therefore, the panels 6 and 7 are reliably prevented from swinging around the respective long pins P2. Next, the operation will be described. When the sprocket 3 is rotated in the panel storage direction in a shutter closed state in which the panels 6, 7 are extended between the guide rails 1, the panels 6, 7, together with the chain 5 meshed with the sprocket 3, are provided.
Move up along the guide rail 1 and sequentially enter the storage box 2. Panels 6 and 7 that have sequentially entered storage box 2
During the ascent process, the upper guide roller R is moved by the steady rest guide 12.
By being fitted into and guided by the shaft, the run-out is prevented. Then, the long pin P2 suspending the panels 6 and 7
When the panel connecting link plate 50 having the above-mentioned structure reaches the sprocket 3, on the circumference of the sprocket 3, the long pin P2 moves faster than the circumferential speed of the sprocket 3 due to the circumferential speed difference with the chain 5, and the panel 6, 7 is smoothly transported in the panel storage direction. Therefore, the lower panel 7 does not collide with the upper panel 6 while the upper panel 6 moves along the circumference of the sprocket 3. Therefore, the gap L1 between the panels 6, 7 may be small. The long pin P2, which has passed through the sprocket 3 in the panel storage direction in sequence, has its suspension rollers 51 moved onto the support rails 4, whereby the panels 6, 7 are suspended and stored in a parallel state by the support rails 4. Is done. When the sprocket 3 is driven to rotate in the reverse direction from the panel storage state, the panels 6 and 7 on the support rail 4 are sequentially pulled toward the sprocket 3 by the chain 5 meshed with the sprocket 3, and the sprocket 3 is moved. It is fed out between the guide rails 1 via.

[Effect of the invention]

As described above, according to the present invention, a panel connecting link plate that protrudes radially outward on the circumference of the panel driving sprocket is provided on the chain that meshes with the sprocket, and the link plate has an outwardly projecting link plate. Since the panel has a simple configuration in which the panel is rotatably supported by a long pin on the end side, an offset distance is set between the panel support point (long pin) and the chain by the link plate. In the process in which the plate moves on the circumference of the sprocket, a peripheral speed difference occurs between the chain and the long pin, and the panel supported by the long pin moves faster than the peripheral speed of the sprocket due to the peripheral speed difference. For this reason, the gap between the vertically adjacent panels between both guide rails can be set small, and the gap does not need to be set large as in the conventional case, so that the height dimension of each panel does not need to be reduced. Therefore, there is no necessity to reduce the mounting area of a panel face plate such as a glass plate in each panel. Further, since the gap between the panels can be set to be small as described above, the storage box can be downsized as compared with the case where the gap must be set to be large, and the restriction on the panel shutter installation location is greatly eased. At the same time, in the process of moving the panels along the circumference of the sprocket, there is no danger that the panels will collide with each other due to the above-mentioned peripheral speed difference, so that there is an excellent effect that the panels can be smoothly and reliably stored and extended.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional side view showing a main part of a panel shutter driving device according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional front view thereof, FIG. 3 is a cross sectional plan view thereof, and FIG. FIG. 5 is a schematic front view showing the panel shutter device of FIG. 5, and FIG. 5 is a schematic sectional view showing a partly enlarged panel storage box in the panel shutter device of FIG. 1 ... guide rail, 2 ... storage box, 3 ... sprocket, 5 ... chain, 6, 7 ... panel, 50 ... ... link plate for panel connection, P2 ... long pin, a ...
Offset distance.

Claims (1)

(57) [Scope of request for utility model registration] A plurality of upper and lower panels which are driven up and down so as to be movable into a panel storage box on the upper side along a pair of left and right guide rails arranged on both sides of a shutter opening / closing opening are connected by a chain. A panel shutter driving device comprising the chain engaged with a panel driving sprocket arranged in the panel storage box, wherein the chain is fixedly connected to the chain at a predetermined panel connection pitch, and A panel connecting link plate protruding outward in the radial direction, and a long pin provided on an outer protruding end side of the link plate, and both sides of the panel are provided on the outer protruding end side of the link plate via the long pin. A panel shutter driving device characterized in that the portion is rotatably supported.