JPH02221584A - Driving gear for panel shutter - Google Patents

Abstract

PURPOSE:To smoothly feed panels transversely in a storage direction by providing, in a rotary shaft of a sprocket, an arm actuating the upper positioned panel to be lifted at a speed faster than that of the lower positioned panel and releasing the panels from being mutually fitted. CONSTITUTION:A chain 5 arranges in its panel connection part a link attachment 50 providing in its lengthwise direction a pin guide long hole 51. Next, a long pin P, connecting upper part both sides of each panel 6, 6, 7, 7 to the chain 5, is slidably fitted and engaged with the pin guide long hole 51. Next, a panel lift driving sprocket 3 provides in its rotary shaft 3a synchronously rotatably an arm 10 extended to the outer from a peripheral edge of the sprocket 3 and disconnectably engageable with the long pin P. Subsequently, when an upper end of the upper positioned panel 6 reaches in the vicinity of the sprocket 3, the arm 10 is engaged with the long pin P. By utilizing a differential speed, the upper positioned panel 6 is lifted acting at a speed higher than that of the lower positioned panel 7, and after both the panels 6, 7 are released from being mutually fitted, the panel is fed onto a supporting rail 4 in a storage box 2.

Description

[Detailed description of the invention] [Industrial application field]

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.

[Conventional technology]

FIG. 7 is a schematic front view showing a conventional panel shutter, and FIG. 8 is a schematic sectional view showing an enlarged part of the panel storage box in the panel shutter of FIG. First, in Fig. 7, l is a pair of left and right guide rails that are placed upright on both sides of the opening for opening and closing shutters such as entrances and exits of buildings and windows. It consists of a U-shaped member with an opening. A panel storage box (hereinafter referred to as storage box) 2 is arranged above the guide rail 1. As shown in FIG. 8, 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 l 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 slidable up and down, and a plurality of upper and lower panels vertically adjacent to each other are formed between the guide rails 1. 6.7 are connected on both sides of each upper part. As a linking means, a long pin P which 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 this long pin P rotates both sides of the upper part of each of the panels 6 and 7. It has a suspended structure that allows it to move freely. Further, a guide roller R 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 may have a configuration shown in FIG. 8, and a configuration shown in FIG. 10 is also known. First, referring to the panel 6.7 in FIG. 8, the panel 6.7 has a fitting protrusion 8 in the longitudinal direction of its upper end, and a fitting groove 9 in the longitudinal direction of its lower end. When all the panels 6.7 are extended between the guide rails 1 and the so-called shutter is fully closed, the fitting protrusions are formed between the panels 6.7. The portion 8 and the fitting groove portion 9 fit together, so that when the shutter is fully closed, there is no gap between the panels 6 and 7. However, when storing the panel in the storage box 2,
The upper end fitting protrusion 8 of the lower panel 7 is 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, as shown in FIG. If the upper panel 6 remains in this state, it is impossible to move the upper panel 6 laterally along the sprocket 3 toward the support rail 4 (panel storage direction). Therefore, in order to allow the panels 6.7 to be moved laterally in the storage direction, there are two sections between the panels 6.7 in the unfolded state between the guide rails 1, as shown in FIG. A gap is set to maintain the fitting protrusion 8 and the fitting groove 9 in a separated state, and the panels 6 and 7 are interconnected with the chain 5 as described above at the panel spacing in this state. ing. The panels 6.7 shown in FIG.
The fitting groove 9 is upside down compared to the case shown in Fig. 8.
In addition, an overlap piece 9a rising from one side of the fitting groove 9 (the upper end of the front surface side of each panel 6.7) and an overlap piece 9a rising from the other side of the fitting protrusion 8 (the upper end of each panel 6, 7 on the front surface side) The overlapping piece 8a hangs down from the lower end of the back side. In this panel 6.7, as in the case of FIG.
The panels 6.7 are connected by the chain 5 at the panel intervals such that the gaps created between the panels 6.7 are closed by the overlap pieces 8a and 9a on both the front and back sides of the panels 6.7. There is. Next, the operation will be explained. First, Fig. 8 and 1θ
When the panel 6.7 is fed out from inside the storage box 2 shown in the figure, when the sprocket 3 is started to rotate counterclockwise, the panel 6.7 on the support rail 4 is moved through the chain 5 meshed with the sprocket 3. By being sequentially pulled in the unwinding direction, the panel 6.7 passes through the sprocket 3 along its circumference and then moves downward along the guide rail l. During such a lowering operation of the panel 6.7, if the lowest panel 6 is not yet in contact with the ground, no matter which panel 6.7 shown in FIGS. Panel 6.7 Fitting protrusion 8 and fitting concave line 9 between each other
and are in a non-mated state. However, when the lowest panel 6 touches the ground, the upper panel 7 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. ' and the fitting concave portion 9 are fitted to form a seal. When the sprocket 3 is started to rotate in the reverse direction from such a shutter fully closed 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 inside. Therefore, the panels 6.7 that have entered the storage box 2 and reached the sprocket 3 in sequence are
It is sequentially fed horizontally along the support rail 4 side without any hindrance. By this lateral movement, the guide lower R of each panel 6.7 moves onto the support rail 4, and each panel 6.7 is suspended and stored in a parallel folded state by the support rail 4.

[Problem to be solved by the invention]

The conventional panel shutter is constructed as described above, and simply connects the upper and lower panels 6 and 7 with an ordinary chain 5, and meshes the chain 5 with an ordinary sprocket 3, so that the fitting protrusion does not occur. When storing the panels 6.7 having the stripes 8 and the fitting grooves 9, a guide rail is provided so that the panels 6.7 that have successively ascended and reached the vicinity of the sprocket 3 can be sequentially moved horizontally in the storage direction. A gap must be provided between the panels 6 and 7 that are located between the guide rails and move between the guide rails, and this gap causes various problems as described below. ing. That is, in the case of panel 6.7 shown in FIG.
Since the gap between the panels 7 remains as is, when the shutter is fully closed, the lowest panel 6 of the panels 6 and 7 groups that are sequentially extended between the guide rails 1 will touch the ground, and the panels 6 and 7 will be sequentially extended onto the lowest panel 6. As the upper panel 7.6 descends, the gaps between the panels are closed one after another, but at this time, there is a risk of getting your fingers caught in the gap, and the above-mentioned There were problems such as objects getting caught in the gaps. In this regard, in the case of the panel 6.7 shown in FIG.
Since the gaps are closed by the panels 6 and 7, there is no danger of fingers getting caught in the gaps, but on the other hand, each panel 6.7 has an overlapping piece 8a. 9a must be provided, so the panel structure is not correct? ! !
9 m, which not only increases the cost, but also increases the height of each panel 6°7 due to the overlapping pieces 8a and 9a, and the storage box 2 also has to be made larger accordingly. However, there were problems such as the installation locations of panel shutters were severely restricted. This invention was made in order to solve the various problems mentioned above, and it prevents the risk of fingers or the like being caught between the panels by preventing gaps between the panels extended between the guide rails. There is a gap between the panels in the storage box, allowing the panels to be moved smoothly in the storage direction.
Moreover, it is an object of the present invention to provide a panel shutter driving device that does not require providing an overlapping piece on each panel, and can simplify the panel structure and compact the panel storage volume.

[Means to solve the problem]

In the panel shutter drive device according to the present invention, a link attachment is provided at the panel connection portion of the panel connection chain, a pin guide elongated hole is provided in the longitudinal direction of the link attachment, and the pin guide elongated hole is provided on both sides of the upper part of each panel. A long pin connecting the chain and the chain is slidably fitted and engaged, and the rotating shaft of the sprocket for driving the panel elevation with which the chain engages has a long pin extending outward from the outer periphery of the sprocket and near the sprocket. An arm that removably engages with the long pin is coupled for synchronous rotation.

[For use]

In the panel shutter drive device of the present invention, when the sprocket rotates in the panel storage direction in the shutter closed state where each panel is extended between the guide rails,
When the chain engaged with the sprocket rises along the guide rail and the link attachment of the chain reaches the vicinity of the sprocket, the arm rotating in synchronization with the sprocket moves into the long pin in the pin guide elongated hole of the link attachment. By engaging with the long pin and pushing the long pin up within the pin guide elongated hole, the panel suspended by the long pin rises faster than the lower panel. That is, the arm that rotates in synchronization with the sprocket,
Since the distal end side thereof extends outward from the outer peripheral edge of the sprocket, the circumferential speed of the distal end side of the arm is faster than the circumferential speed of the sprocket. Therefore, in the process of raising each panel along the guide rail &w, when the arm engages the long pin of the panel that has risen near the sprocket from below, the long pin is pushed up by the arm faster than the rising speed of the lower panel. It will be done. This causes the panels that reach the sprocket to rise faster than the lower panels, creating a gap between them. This gap allows the upper panel that has reached the sprocket to be smoothly moved laterally in the storage direction. Therefore, each panel between the guide rails can always be kept in a sealed state, and only the panel that has entered the storage box along the guide rail will have a gap between it and the lower panel. There is no danger of fingers or the like getting caught between the panels between the rails, and there is no need to provide overlapping pieces to each of the panels, so the panel structure is simplified and the panel storage volume is also made compact.

【Example】

Hereinafter, one embodiment of the present invention will be described based on the drawings. FIG. 1 is a schematic cross-sectional view of the storage box portion of a panel shutter according to an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view showing the main part of the connection between the chain and the panel in FIG. 1, and FIG. It is a side view, and the same or equivalent parts as in FIGS. 7 to 10 are given the same reference numerals, and redundant explanation will be omitted. In the figure, a link attachment 50 that also serves as a chain link is provided at the attachment part of the panel 6.7 on the chain 5. This link attachment 50 is formed longer than the normal link plate 5a of the chain 5, and both longitudinal ends of the link attachment 50 are rotatably connected 7 to the normal link plate 5a by a link pin Pl. Further, the link attachment 50 is provided with pin guide elongated holes 51 along the longitudinal direction on both sides thereof. Long pins P connected to both sides of the upper part of each panel 6°7 are slidably fitted and engaged in the long pin guide holes 51, so that both upper sides of each panel 6°7 are connected to the chain 5. It is suspended from a link attachment 50. Each of the panels 6.7 has a fitting convex strip 8 at its upper end and an eighth fitting groove 9 at its lower end.
The same shape as shown in the figure is used. Here, each of the panels 6° 7 connected to the link attachment 50 of the chain 5 via the long pin guide hole 51 and the long pin P as described above hangs down between the guide rails 1. Due to the load of each panel, the long pin P becomes engaged with the lower end of the pin guide elongated hole 51, and in this state, each of the fitting protrusions 8 and 9 between the panels 6 and 7.
The panels 6, 7 are connected by the chain 5 to achieve this state. On the other hand, an arm 10 for rotating synchronously with the sprocket 3 is integrally connected to the rotating shaft 3a of the sprocket 3 with which the chain 5 is meshed. The arm IO has its distal end extending outward from the outer peripheral edge of the sprocket 3 and detachably engages with the long pin P near the sprocket 3. In this way, the circumferential speed on the tip side of the arm 10, which extends outward from the outer peripheral edge of the sprocket 3 and rotates synchronously with the sprocket 3, is faster than the circumferential speed of the sprocket 3. Next, the operation will be explained. When the sprocket 3 is rotated in the panel storage direction in the shutter closed state where each panel 6.7 is extended between the guide rails 1, the panel 6.7 meshed with the sprocket 3 rises along the guide rail 1. It moves and enters the storage box 2. In the process of raising the panel 6.7, when the link attachment 50 of the chain 5 suspending the upper panel 6 rises and reaches the vicinity of the sprocket 3, the arm 10 rotating in synchronization with the sprocket 3 The distal end side engages with the long pin P in the pin guide elongated hole 51 of the link attachment 50 from below and pushes the long pin P up within the pin guide elongated hole 51. During this pushing up, the sprocket 3 is also winding up the chain 5, but the winding speed, that is, the circumferential speed on the tip side of the arm 10 is faster than the circumferential speed of the sprocket 3. The long pin P is pushed up within the pin guide elongated hole 51 as shown in FIG. As a result, the upper panel 6 moves upward at a faster speed than the lower panel 7. Therefore, the lower end fitting concave portion 9 of the upper panel 6 is disengaged from the fitting convex portion 8 of the lower panel 7. The upper panel 6, which has been disengaged from the lower panel 7 in this manner, is smoothly moved horizontally along the circumference of the sprocket 3 toward the support rail 4 (panel storage direction). In this way, each panel 6.7 is connected to said sprocket 3.
Each time the panels 6.7 reach the upper position, the mutual engagement between the panels 6.7 is sequentially released and the panels 6.7 are sequentially moved laterally in the panel storage direction, so that the panels 6.7 move onto the support rail 4 and It is suspended and stored in a folded state on the support rail 4 via the guide roller R. When the sprocket 3 is driven to rotate in the reverse direction from such a panel storage state, each panel 6.7 on the support rail 4 is sequentially pulled toward the sprocket 3 by the chain 5 meshed with the sprocket 3. It is fed out between the guide rails 1 via the guide rail 1. In this case, the arm l rotating synchronously with the sprocket 3
The tip end side of O follows the long pin P which moves along the sprocket 3 in the direction of drawing out the panel. Each of the panels 6.7, which is sequentially let out between the guide rails 1, moves downward by its own weight to a position where each long pin P engages with the lower end of the pin guide elongated hole 51. As a result, each panel 6.7 drawn out from inside the storage box 2 is in a state in which the fitting protrusion 8 and the fitting groove 9 between the panels 6.7 are inevitably fitted. and is fed out between the guide rails 1. In addition, the symbol M in FIG. 1 is a driving means such as a geared motor that rotationally drives the sprocket 3, and R1 is a lower guide roller attached to the lower part of each panel 6.7.
Reference numeral 1 denotes a panel guide which is disposed at the lower part of the storage box 2 and guides the lower end of each of the panels 6, 7 in the panel entrance/exit direction via the respective lower guide rollers R1.

【Effect of the invention】

As described above, according to the present invention, due to the difference in speed between the circumferential speed of the sprocket engaged with the panel linking chain and the circumferential speed on the tip side of the arm that rotates synchronously with the sprocket, when the panel is stored, the vicinity of the sprocket The upper panel that has reached this point can be moved up at a faster speed than the lower panel, and as a result, the panels are disengaged from each other within the storage box, allowing the panels to move smoothly in the storage direction. At the same time, the panels can be maintained in a sealed state at all times between the guide rails, so there is no danger of fingers getting caught in the gaps between the panels, and it is also possible to keep each panel in an overlapping state. Since there is no need to create a structure, the structure of the panel is simplified, and the height of each panel can be lowered than in the case of an overlap structure, so the storage box can be made smaller and there are no restrictions on where the panel shutter can be installed. It has excellent effects such as significant relief.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view of the storage box portion of a panel shutter according to an embodiment of the present invention, and FIG. 2 is an enlarged sectional view showing the main part of the connection between the chain and the panel in FIG. 1.
Fig. 3 is a side view of the chain, Fig. 4 is an enlarged view showing the relationship between the sprocket and the chain, Figs. 5 and 6 are explanatory diagrams of operation, and Fig. 7' is a schematic diagram showing a conventional panel shutter. A front view, FIG. 8 is a schematic sectional view showing an enlarged main part of a conventional panel shutter, FIG. 9 is an explanatory diagram related to FIG. 8, and FIG. 10 is a panel shutter showing another conventional example. FIG. 1... Guide rail, 2... Storage box, 3...
- Sprocket, 5... Chain, 6, 7... Panel, 10... Arm, 50... Link attachment, 51... Pin guide long hole 51. R...Long bin. Patent applicant Bunka Shutter Co., Ltd.
Top Lumitter Engineering Co., Ltd. g4 diagram Figure 5

Claims (1)

[Claims] Multiple stages 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 the guide rails 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, and the chain is connected to the In a panel shutter drive device that meshes with a panel drive sprocket arranged in a panel storage box, the link attachment is provided at the panel connection part of the chain and serves as a chain link for that part, and the link attachment a pin guide elongated hole provided in the longitudinal direction and into which a long pin connecting the upper sides of each panel and the chain is slidably fitted and engaged; and a pin guide elongated hole that is connected to the rotation axis of the sprocket so as to be rotatable in synchronization with the rotation axis of the sprocket. an arm that extends outward from the outer peripheral edge of the sprocket and removably engages with the long pin near the sprocket; A drive device for a panel shutter, characterized in that the long pin engaged with the tip side of the arm is moved upwardly within the pin guide elongated hole faster than the chain due to a speed difference between the circumferential speed on the tip side of the arm and the peripheral speed on the tip side of the arm. .