JPH04285285A - Panel shutter device - Google Patents

Abstract

PURPOSE:To secure the high-speed transporting property of a panel shutter when the shutter is opened or closed and safety against the danger of fingers being caught by the panels when the panels are lowered. CONSTITUTION:A sprocket 2 is provided near a storage rail provided along the longitudinal direction of a storage case 1 and a forcible guide mechanism for preventing the lower sides of the panels from coming behind the other parts when the panels are conveyed is provided below the sprocket 2. The forcible guide mechanism comprises a guide rotor 3 which engages with and disengages from a guide shaft 26 projected to below the panels.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a panel shutter device, and more specifically, a plurality of panels forming a shutter curtain are suspended by a connecting chain, and are moved up and down and horizontally by the forward and reverse rotation of a sprocket. The present invention relates to a device for ensuring the continuity of panels when opening and closing a panel shutter configured to open and close an opening in a building, and for ensuring safety when the panels are lowered.

0002

[Prior Art] In conventional panel shutters, roller shafts protruding from both upper sides of multiple panels are connected by a connecting chain to form a shutter curtain, and the extra length of the connecting chain is connected to an opening in a building. The sprocket is engaged with and suspended near the storage rails provided in the front and rear directions on both the left and right sides of the storage case, which is connected to the upper end of the guide rails installed on both sides, and the forward and reverse rotation of these sprockets is suspended. In conjunction with this, the shutter curtain is lifted or hung to open and close the opening.

That is, when the sprocket rotates in the forward direction,
The panels, which were arranged in a vertical plane along the guide rail to close the openings, were lifted up and down at equal intervals vertically by connecting chains, and roller shafts protruded from both sides of each panel. The guide rollers pivoted on the top panel are guided by the guide rails and move upward, and then the sprockets are sequentially transferred from the guide roller on the top panel to the front and rear panels that are placed on the inside surfaces of the left and right side panels of the storage case. As the guide rollers roll, each panel moves horizontally and is placed side by side with the other, and the bottom of the bottom panel that is moving upwards When it is level with the bottom of the ridge, it stops rising and the opening is opened.

[0004] When the sprocket rotates in the opposite direction, the bottom panel moves down along the guide rail, and in conjunction with this, the panels are supported by the storage rail in the storage case and arranged side by side. The panels are sequentially moved laterally on the storage rail starting with the panel in the front row, and through the sprocket transfer process, are sequentially transferred from the bottom end of the panel to the guide rail, and are suspended from the connecting chain and placed on the guide rail. The panels are moved downward along the guide rails, and each panel is again arranged in a vertical plane while being supported by the guide rail, so that the opening is closed. By the way, the panel shutter that performs the opening/closing operation as described above is an already known roll-up type elevating shutter, in which the upper and lower edges of a long and thin steel plate are pivotally connected in the vertical direction to form a shutter curtain. Compared to a shutter that opens and closes the opening by winding or unwinding the shutter curtain into a roll on a take-up shaft that is rotatably mounted in a storage case, the shutter curtains are opened and closed between panels and Since there is no friction or collision between the panel and the guide rail, it has the advantage of not generating unpleasant noise, and has been recognized for its excellent functionality in stores in underground malls and stores in residential areas where sound tends to resonate. However, it has the following drawbacks in terms of high-speed panel transferability and safety during opening and closing.

In other words, from the viewpoint of panel transferability, this type of panel shutter allows panels to be separated from each other when removed from the guide rail and transferred onto the storage rail, or transferred from the storage rail to the guide rail again. During the conveyance process, the direction of movement of the panel is changed while the upper end of the panel is suspended, so the lower end of the panel becomes a free end and swings back and forth around the roller shaft due to kinetic inertia, and this amplitude increases. When this happens, there is a delay in the transfer of the lower part of the panel, and the subsequent panel gets caught and is not transferred to the storage rail or guide rail, making it impossible to ascend or descend, resulting in an accident that may damage the panel. This amplitude increases in proportion to the opening/closing speed, and also in proportion to the width of the opening, that is, the mass of the panels.In particular, collisions between panels rolling on the storage rails may also make it impossible to transmit data at high speeds. It was impossible to deal with closing and opening. Therefore, an attempt was made to provide a guide shaft at the bottom end of the panel and guide the guide shaft to the guide rail by providing a guide member to guide the guide shaft, but this method was also unable to cope with the high-speed opening and closing of the shutter curtain, and as mentioned above, A collision between the guide shaft and the guide member may occur,
Unable to eliminate the inconvenience caused by transit delays, customers have been demanding the need for a panel shutter device that can open and close at high speed.

On the other hand, from the viewpoint of safety, this type of panel shutter is difficult to close the opening because each panel forming the shutter curtain is connected by a connecting chain with equal intervals in the vertical direction. When doing so, there is a risk that fingers may be accidentally caught in the gaps between the panels and be damaged in the process of sequentially placing each panel on the lower panel. Therefore, as a safety measure to prevent the so-called finger jamming, there is a method described in Japanese Utility Model Application Laid-open No. 62-88087, Japanese Utility Model Application Publication No. 63-94293, which was previously proposed by the applicant of the present application, Japanese Utility Model Application Publication No. 63-1195, or As disclosed in Japanese Patent No. 63-55298, a lifting chain connected to the lowest end panel (bottom panel) is used to separate the panels from each other immediately before the relaying process without creating gaps between the panels when moving up and down. Attempts have also been made to do this, but in both cases, the load of the entire panel is applied to the connection between the lifting chain and the bottom panel, so the connection and the bottom panel themselves must be reinforced. A special guide rail was required to guide the chain as well. For this reason, if the panel shutter becomes larger, the connecting parts and the bottom panel itself must be reinforced accordingly, so for example, the opening height should be the same as the height of the opening where a normal panel shutter is installed. For large buildings that are more than twice as large as the original size, it was considered impossible to install panel shutters with the conventional finger-clogging prevention structure.

[0007]

[Problems to be Solved by the Invention] Therefore, the present invention has been devised to eliminate the drawbacks of conventional panel shutters, ensure high-speed transmission during opening/closing, and ensure safety during opening/closing operations. The main purpose of this is to transfer the panels to the top or bottom of the panel during the transfer process in which each panel is transferred in conjunction with the forward and reverse rotation of the sprocket when the shutter curtain is opened and closed. Even in the event of a delay, a forced guide mechanism is provided to forcibly transfer the material to prevent the transfer delay and ensure a smooth transition from the panel guide rail to the storage rail or from the storage rail to the guide rail. Even if the panel shutter is opened and closed at high speed, the following panel will get caught and not be transferred to the storage rail or guide rail, making it impossible to ascend or descend, thereby preventing accidents that could damage the panel. An object of the present invention is to provide a panel shutter device that can ensure smooth mutual transfer of the panels.

Another object of the present invention is to provide safety protection against finger jamming during the operation in which each upper panel is sequentially placed on a lower panel when the shutter curtain is lowered. Although each panel is suspended by a connecting chain via a support shaft, each panel of the shutter curtain can be raised and lowered without creating a gap without using a lifting chain, and a separate lifting chain is provided. Therefore, it is possible to use a relatively simple construction, eliminating the need for reinforcing the joints that bear the full load of the panels, the reinforcement of the bottom panel itself, and the provision of special guide rails to guide the lifting chains. To provide a panel shutter device that ensures safety by preventing jamming.

Still another object of the present invention is to provide a panel shutter that can ensure safety against finger jamming even in a panel shutter device in which the shutter curtain is opened and closed at high speed to ensure smooth mutual conveyance of panels. The goal is to provide equipment.

0010

[Means for Solving the Problems] The present invention has a basic configuration of a panel shutter in which support shafts supporting guide rollers protruding from both side surfaces of each panel of a plurality of panels are each suspended by a connecting chain. a shutter curtain formed in a series, a guide rail erected on both left and right sides of the opening of the building to guide the vertical movement of each panel, and a storage case connected to the upper end of the guide rail; A storage rail is installed on the inside surface of the left and right side panels of this storage case in the front-rear direction to store each panel conveyed from the guide rail in a state where they are lined up against each other. It is equipped with a sprocket that suspends a chain and rotates it forward and backward to move each panel up and down along the guide rail and horizontally along the storage rail, allowing you to lift or hang the shutter curtain. The opening is opened and closed, and based on this basic configuration, the following technical measures were adopted.

That is, in the first invention, the upper side of each panel forming the shutter curtain is suspended by a connecting chain via a support shaft, and the extra length of the connecting chain is extended in the front-rear direction inside the storage case. The panel is suspended from a sprocket disposed near the provided storage rail, and in conjunction with forward and reverse rotation of the sprocket, the panel is mutually conveyed from vertical movement along the guide rail to lateral movement along the storage rail. In this relaying process, a relaying delay occurs at the bottom of the panel, but in order to prevent this relaying delay, a guiding rotating body is provided as a forced guiding mechanism. By engaging and disengaging the guide shaft protruding from the side, a delay in conveying the lower side of the panel is prevented. Due to the forced guide mechanism configured in this way, when the shutter curtain is opened and closed at high speed, the lower end of the panel becomes a free end and moves as in the conventional case, even when the panels are moved at high speed during mutual relaying during the relaying process. Due to inertia, the panel swings back and forth around the support shaft as a fulcrum, and the subsequent panel gets caught and cannot be moved up or down without being transferred to the storage rail or guide rail, preventing accidents that could damage the panel.Moreover, it can be opened and closed at high speed. This also avoids the risk of finger jamming.

[0012] Next, in the second invention, the arrangement of the members is opposite to that of the first invention. That is, the lower side of each panel forming the shutter curtain was suspended by a connecting chain via a support shaft, and the extra length of the connecting chain was placed below the storage rail provided in the front-rear direction inside the storage case. The panel is suspended on a sprocket, and in conjunction with the forward and reverse rotation of the sprocket, the panel moves up and down along the guide rail and laterally moves along the storage rail. In this relaying process, a relaying delay occurs on the upper side of the panel, but in order to prevent this relaying delay, a guiding rotating body as a forced guiding mechanism is provided near the guide rail, and this guiding rotating body By engaging and disengaging guide shafts protruding from the upper side of each panel, delays in relaying the upper side of the panels are prevented. Due to the forced guide mechanism configured in this way, the lower side of the panel is always transferred before the upper side of the panel, and the lower side of the panel can be transferred to the guide rail more quickly, especially during closed transfer. Therefore, compared to the conventional case where there was a delay in transmission at the bottom of the panel,
This makes it possible to minimize the time lag caused by the transfer delay on the upper side of the panel.Moreover, since the upper side of the panel is already engaged with the guide rotating body while being regulated to swing on the storage rail, no swinging occurs on the lower side of the panel. Reliable transmission will be carried out even if the transmission is delayed. Therefore, when the shutter curtain is opened and closed at high speed, there is no problem with the high-speed movement of the panels during the relaying process.

[0013] Furthermore, the third invention is such that the outer surface of the sprocket for suspending the connecting chain suspended from the support shaft protruding from each panel forming the shutter curtain has an outer diameter larger than the outer diameter of the sprocket. A large diameter annular member is integrally attached. The hanging portion is provided with a swingable panel support member, and when this support member passes through the sprocket, it engages with the outer peripheral surface of the annular member, causing the sprocket to continue rotating. In conjunction with
The amount of movement of the support shaft gradually increases with respect to the amount of movement of the connecting chain, so that panels that have been raised without being separated as a whole are gradually separated and mutually conveyed. Therefore, it is possible to have an extremely simple structure that only includes an annular member and a panel support member, and it is possible to eliminate the conventional complicated structure associated with preventing finger jamming.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to better understand the contents of the present invention, the best embodiment thereof will be described in detail below with reference to the accompanying drawings.

1 to 4 show an embodiment of the first invention, in which reference numeral 1 denotes a storage case disposed in the upper part of the opening, and sprockets 2 are disposed on both left and right sides of the inside of the storage case.
and a guide rotor 3 are rotatably arranged at a predetermined interval in the vertical direction (for example, at a height substantially equal to the height of a panel 20 described later, and with the guide rotor 3 slightly on the rear side). ing. These sprockets 2 and guide rotary body 3 are connected to a sprocket 4 attached to a rotating shaft that supports both.
and a sprocket 9, which is rotated synchronously at the same rotational speed by an endless chain 6 stretched between the sprockets 9 and 5, and the guide rotary body 3 is attached to the intermediate shaft 8 via the endless chain 7.
The intermediate shaft 8 is connected to the switch 10 via an endless chain 11. Note that 12 is a tensioner that applies tension to the endless chain 7.

Chain pressers 13 and 14 are provided on the upper side of the sprocket 2 and the guide rotor 3, and a connecting chain 15 and a connecting band 16 formed of a chain are attached to the sprocket 2 and the guide rotor 3 as a hanging body.
is wrapped around the connecting chain 15 and the connecting band 1.
One end of the chain guide 6 is slidably moored to a chain guide 17 that is arranged to be inclined backwardly from a position above the sprocket 2.

Here, the sprocket 2 and the guide rotating body 3 both have the same pitch, and the number of teeth Z1 of the sprocket 2 is
is set to be larger than the number of teeth Z2 of the guide rotor 3, and the conveying speed V1 of the connecting chain 15 and the connecting band 16
The transport speed V2 is set, for example, to satisfy the following equation (1). (V1 - V2)/T=ΔL...
...(1) Here, T is connected to panel 2 by connecting band 16.
The time required to move 0 by that height, ΔL, is the difference in the amount of movement of the connecting chain 15 and the connecting band 16. Further, on the rear side of the sprocket 2, a horizontal storage rail 18 is arranged parallel to the chain guide 17 and guides an upper guide roller 22 of a panel 20, which will be described later.

A plurality of panels 20, 20, . . . forming a shutter curtain are suspended from the connecting chains 15 and connecting bands 16 on both the left and right sides. Each of these panels 20
As shown in Figure 2, there are support shafts 2 on the upper sides of both left and right end surfaces
1 protrudes outward, an upper guide roller 22 is attached to the tip of this support shaft 21, a guide shaft mounting plate 23 is attached to the lower end side, and a fitting groove 24 is further provided on the lower end surface. A fitting protrusion 25 that fits into the fitting groove 24 is formed on the upper end surface.

The guide shaft mounting plate 23 includes a mounting plate portion 23a fixed to the left and right end faces of the panel 20, an intermediate plate portion 23b bent at right angles from the front edge of the mounting plate portion 23a, and the intermediate plate portion 23.
A guide plate part 23c is bent at right angles in parallel with the mounting plate part 23a from b to form a crank shape when viewed from above, and an oblong hole 23d extending in the vertical direction is bored in the guide plate part 23c. ing. Then, the support shaft 21 of each panel 20 is attached to the connecting chain 15 at a predetermined pitch (L+ΔL), which is the sum of the panel height L and the movement amount difference ΔL, and the elongated hole 23d of the guide shaft mounting plate 23
A guide shaft 26 that projects from the connecting band 16 at an interval equal to the panel height L is inserted into the interior, and a retaining ring 27 is fitted to the tip of the guide shaft 26 .

Next, the operation of the above embodiment will be explained. now,
As shown in FIG. 1, it is assumed that each panel 20 is lowered, the fitting grooves 24 between the panels and the fitting protrusions 25 are fitted, and the shutter curtain is closed. At this time, since the support shafts 21 of the panels 20 are attached to the connecting chain 15 at a pitch of (L+ΔL), the connecting chain 15 is slack and the connecting band 16 is in a substantially tensioned state. In this state, when the opening/closing machine 10 is driven to rotate the sprocket 2 and the guide rotor 3 in the clockwise direction as seen in FIG. As the rotating body 3 rotates, all the panels 20 are raised simultaneously. At this time, since the number of teeth Z1 of the sprocket 2 is set to be larger than the number of teeth Z2 of the guide rotor 3, the conveyance speed of the connecting chain 15 driven by the sprocket 2 is faster, and the top panel 2 at the uppermost end
0 is raised faster than the lower panel 20, and as shown in FIG. The fitted state between the mating protrusions 25 is released. At this time, the guide shaft 26 of the connecting band 16 is connected to the oblong hole 23 of the guide shaft mounting plate 23.
Since the uppermost panel 20 is engaged within the uppermost part d, it does not hinder the floating of the uppermost panel 20. Then, while maintaining this state, the support shaft 21 and guide shaft mounting plate 23 of the panel 20 reach the sprocket 2 and guide rotary body 3 positions, respectively, and when they have made about half a turn, the upper guide roller 22 engages with the storage rail 18. The panel 20 is then suspended from the storage rail 18. Thereafter, as the sprocket 2 and the guide rotating body 3 rotate, the upper panel 20 sequentially floats up from the lower panel 20, and the upper guide roller 22 revolves around the sprocket 2 and engages with the storage rail 18. The preceding panel 20 is pushed out backwards. In this way, each panel 20 is sequentially stored in the storage case 1, and when the bottom panel 20 at the lowest end is stored in the storage case 1 and the shutter curtain is fully opened, the drive of the opening/closing machine 10 is stopped. Ru. When the panels 20 rise, each panel 20 except the panel 20 floating above is individually supported by the connecting band 16, so the load of the panels 20 above is applied to the bottom panel 20 at the lowest end. Therefore, the mechanical strength of the bottom panel 20 in the vertical direction can be reduced.

Further, from the state where all the panels 20 are stored in the storage case 1, the opening/closing machine 10 is rotated in the opposite direction to the above, and the sprocket 2 and the guide rotating body 3 are rotated.
When the bottom panel 20 is rotated counterclockwise as viewed in FIG. 3, the bottom panel 20 is first lowered. At this time, the panel 2 mentioned above
0, the guide shaft 26 of the connecting band 16 is inserted into the lower end side of the oblong hole 23d of the guide shaft mounting plate 23, so the connecting chain is initially driven by the sprocket 2 with a high rotation speed. 15 suspends the panel 20, and as the panel 20 descends, due to the slow conveyance speed of the connecting band 16, the panel 20 is suspended relative to the guide shaft 26.
0 descends, and eventually the guide shaft 26 engages with the upper end of the oblong hole 23d of the guide shaft mounting plate 23, and no more panels 20
is regulated, and the panel 20 is lowered at the conveyance speed of the connecting band 16. Next, the panel 20, which will be described later, separates from the horizontal storage rail 18 and starts to descend, and in the same manner as above, it also descends while being guided by the connecting band 16, and enters the fitting groove 24 on its lower end surface. The fitting protrusion 25 on the upper end surface of the bottom panel 20 is fitted and the lowering relative to the connection 16 is stopped. Thereafter, each panel 20 is sequentially lowered in the same manner.
It fits into the preceding panel 20 at a position slightly lower than the storage case 1, and when the bottom panel 20 touches the ground, the driving of the opening/closing machine 10 is stopped and the shutter curtain is closed.

In this manner, in the panel conveyance process, the panel end of the panel 20 on the sprocket 2 side is connected to the guide rotating body 3.
By forcibly disengaging and disengaging the guide shaft 26 using the guide rotating body 3, the delay in conveying the lower side of the panel caused by the panel being conveyed slightly faster than the side panel edge is prevented. Since each panel 20 can be forcibly fed to the guide rotor 3 by the band 16, it is possible to cope with the high-speed movement of the panels 20 mutually during the transfer process when the shutter curtain is opened and closed at high speed. , unlike conventional panels, the lower end of the panel becomes a free end and swings back and forth around the support shaft 21 due to kinetic inertia, and subsequent panels are caught and cannot be moved up or down without being transferred to the storage rail or guide rail. This makes it possible to reliably prevent accidents that could damage the panel. Moreover, although the panels 20 are opened and closed at high speed, when the panels 20 are lowered, each panel 20 fits with the preceding panel 20 at a position slightly lowered from the storage case 1, and is thereafter individually supported by the connecting band 16. Since the panels are lowered in a state in which the panels are in close contact with each other, there is no gap for inserting fingers, and it is possible to reliably prevent so-called finger jamming from occurring. Moreover, since only the load of one panel is always applied to the connecting chain 15, a chain of lower count and cheaper can be used.

Note that in the above embodiment, the guide shaft 23
Although the description has been made of a crank-shaped state, the present invention is not limited to this. As shown in FIG. A block 30 may be inserted to increase the strength of the guide shaft 23. Further, in the above embodiment, a case has been described in which the number of teeth Z1 and Z2 of the sprocket 2 and the guide rotary body 3 are made different to make the conveying speed of the connecting chain 15 faster than that of the connecting band 16, but the present invention is not limited to this. Instead, the conveyance speed of the connecting chain 15 can be linked by making the sprocket 2 and the guide rotor 3 have the same number of teeth and by making the pitch of the roller chain different or by making the rotation speed of the sprocket 2 and the guide rotor 3 different. It may be faster than the band 16, and the connecting band 16 may be a chain or wire.

Next, FIGS. 5 and 10 show an embodiment of the second invention, and the difference between the embodiment of the second invention and the embodiment of the first invention is that the sprocket 2 and the guide rotation The arrangement of the body 3 or the arrangement of the support shaft 21 and the guide shaft 26 are reversed. That is, in the embodiment of the first invention, the sprocket 2 is arranged near the storage rail 18, and the guide rotating body 3 is arranged below it, whereas in the embodiment of the second invention, The guide rotating body 3 is arranged near the storage rail 18, and the sprocket 2 is arranged below it.

[0025] Hereinafter, a detailed explanation will be given based on the drawings.
Inside the storage case 1, a rotating guide 3 is disposed near the storage rail 18, and a sprocket 2 is rotatably disposed below the rotating guide 3 at a predetermined distance. The sprocket 2 and the guide rotating body 3 are driven to rotate synchronously in the same direction by the opening/closing machine 10. A connecting chain 15 is attached to a support shaft 21 protruding from the lower side of the panel 20 via a support shaft mounting plate 21a.
is suspended on the sprocket 2, and in conjunction with the forward and reverse rotation of the sprocket 2, a guide shaft 26 provided on the upper side of the panel 20
guide rails 18 that engage and disengage from the guide rotating body 3 and guide the upper guide rollers 22 provided on the guide shaft 26, respectively.
The opening is opened and closed by mutual transmission of the vertical movement along the line a and the horizontal movement along the storage rail 18.

Then, the guide rotating body 3 shown in FIGS. 5 and 6
a shows the guide shaft 26 as an engagement/disengagement configuration with the guide shaft 26.
A receiving groove 3a that receives the guide roller 22 attached to the
As shown in FIG. 6, this receiving groove 3a has an obtuse angle with the side that receives the rising panel 20 facing the guide rail 18a, and the side that receives the panel 20 that has moved laterally. The guiding rotary body 3 is formed to have an angular width of 90 degrees by forming an acute angle on the side of the slope of the storage rail 18 which is gently inclined toward the guiding rotary body 3 side. Here, the speed ratio between the sprocket 2 and the guide rotating body 3 is set such that the outer circumference of the sprocket 2 is equal to 1/2 of the length of the connecting chain 15 between the support shafts 21 of the panel 20, and the sprocket 2 is When rotated, the guide rotating body 3 rotates once 2:
It is set to be driven in synchronous rotation at a speed ratio of 1. Therefore, at the beginning of the conveyance of the panel 20, the support shaft 21 and the guide shaft 26 begin to transfer to the sprocket 2 and the guide rotor 3 at the same time, and when the sprocket 2 rotates half a turn, the guide rotor 3 rotates. After a quarter rotation, the upper guide roller 22 of the guide shaft 26 moves on the circumference of the receiving groove 3a, and the conveyance is completed. Note that the guide rail 18a
The side surface on the opposite side of the storage case 1 is formed to extend toward the storage rail 18 side along the circumferential surface of the guide rotating body 3, and the engagement state of the guide shaft 26 and the receiving groove 3a during transfer is maintained. A chain presser 13 is also provided on the upper side of the sprocket 2 to ensure the engagement with the connecting chain 15.

Reference numeral 16 denotes a connecting band made of a rope, wire, chain, etc., and the connecting band 16 is used for storage when the storage rail 18 is arranged at an angle backward and downward from a position above the sprocket 2. Each panel 20, 20... running on the rail 18, when the closing operation is performed, the preceding panel 20
In order to draw the rear panel 20 toward the guide rotary body 3 side following the movement, each panel 20 is connected via a guide shaft 26 protruding from the upper end thereof. In addition, the guide rotating body 3 in FIG.
Although the groove shown in FIGS. 5 and 6 is used, the present invention is not limited to this, and the width of the receiving groove 3a in which the guide shaft 26 engages and disengages is made smaller to form a gear shape. It's okay. When this gear-shaped guide rotor 3 is used, not only the sprocket 2 and the guide rotor 3 are driven to rotate synchronously at a speed ratio of 2:1, but also the sprocket 2 and the guide rotor 3 are rotated synchronously at the same speed. It may be set to be driven, and as shown in FIGS. 9 and 10, the guide rotating body 3 is configured with the same number of teeth as the sprocket 2, and the connecting band 16 by a chain is suspended. The sprocket 2 and the guide rotating body 3 are set to rotate synchronously in the same direction at the same speed, so that there is no delay in the relaying between the upper end side and the lower end side of the panel 20. You may do so.

Furthermore, in order to prevent fingers from being jammed when closing the shutter curtain, if a connecting band 16 made of a chain is used, as shown in FIG.
The sprocket 2 and the guide rotating body 3 are installed in an oblong hole 26b provided in the guide shaft mounting plate 26a so as to be slidable in the vertical direction. The number of teeth Z2 of the body 3 is set to be larger than the number of teeth Z2, and the conveying speed V1 of the connecting chain 15 and the conveying speed V2 of the connecting band 16 are set to [(V1 - V2)/T=
If the setting is made to satisfy the equation [ΔL], all the panels 20 will operate without gaps as the guide rotor 3 rotates when moving up and down within the guide rail 18a, and in the transfer area, the sprocket 2 The conveying speed of the connecting chain 15 driven by
0, the leading panel 20 floats up and a gap is created between it and the lower panel 20, so that the vertical movement and the lateral movement are smoothly transferred to each other. Furthermore, when a connecting band such as a rope or wire is used instead of the connecting band 16, the panel supporting members 15a are attached to the connecting chain 15 within a predetermined range at a pitch equal to the panel height, similarly to the third invention described later. A support shaft 21 formed on the panel 20 is pivotally supported on the panel support member 15a, and the panel support member 21a is swung at the position of the sprocket 20 during the panel conveyance process. An annular member 3b is disposed to make the movement of the panel 20 longer than the movement of the connecting chain 15, so that all the panels 20 operate without gaps as the sprocket 2 rotates when moving up and down within the guide rail. In the relay region, the preceding panel 20 may be separated from the lower panel 20 for relaying.

In the embodiment of the second invention constructed in this manner, the shutter curtain is suspended by the connecting chain 15 via the support shafts 21 protruding from the lower part of each panel 20, and is suspended from the storage rail 18. In conjunction with the forward and reverse rotation of the sprocket 2 located below, the guide rail 18 in the vertical direction
The opening is opened and closed through a mutual transfer process of vertical movement along the direction a and lateral movement along the storage rail 18 in the front and back direction. During this relaying process, a relaying delay occurs on the upper side of each panel 20, but in order to prevent this relaying delay, a guide rotating body 3 as a forced guiding mechanism is installed near the storage rail 18. A guide shaft 26 protruding from the upper side of each panel is provided in the receiving groove 3a provided in the guide rotating body 3.
By engaging and disengaging, delays in relaying the upper side of the panel can be prevented. Therefore, by suspending the lower side of the panel 20 with the connecting chain 15, the lower side of the panel 20 is always completed in advance of the upper side of the panel 20, and especially when the panel 20 is closed and connected, Conventional panel 2 due to faster transfer to the lower guide rail
Panel 20
This means that the time lag due to the delay in the transfer of the upper side can be minimized, and since the upper side of the panel 20 has already rolled on the storage rail 18 and is engaged with the guide rotating body 3 in a state where the swinging is restricted, the panel 20 Even if there is rocking on the lower side of 20, reliable conveyance will be performed. Therefore, when the shutter curtain is opened and closed at high speed, it is extremely advantageous for the high-speed movement of mutually relaying panels during the relaying process.

Furthermore, since each panel 20 is connected by a connecting band 16 via a guide shaft 26 protruding from the upper end of the panel 20, when the storage rail 18 is arranged at an angle downward from the position above the sprocket 2, In this case, each panel 20, 20... running on the storage rail 18 is moved to the preceding panel 20 when the closing operation is performed.
The rear panel 20 can be drawn toward the guide rotary body 3 side following this, and more reliable mutual transfer can be performed. Although the connecting bands 16 are connected by the guide shafts 26, the connecting bands 16 are not limited to this, and may be any part that can follow the rear panel 20, for example, the center of the panel 20. Furthermore, the guide rotating body 3 is constructed with the same number of teeth as the sprocket 2, and the connecting band 16 by the chain is suspended.
If the sprocket 2 and the guide rotating body 3 are set to rotate synchronously in the same direction at the same speed, the panel 20
The upper end side and the lower end side are mutually relayed at the same time, and there is no relay delay on either side, and the connection chain 15
Since the panels are suspended by both the and connecting bands 16, the panel load is distributed, and the connecting chains 15 can be constructed of chains with a low number.

Furthermore, in order to prevent fingers from being jammed when closing the shutter curtain, a connecting band 16 using a chain is provided.
When a guide shaft 26 is used, the guide shaft 26 protruding from the upper end of the panel 20 is configured to be vertically slidable in an oblong hole 26b provided in the guide shaft mounting plate 26a, and the sprocket 2 and the guide rotating body are connected to each other. 3 is constructed in the same manner as in the first invention, or the connection band 16 is not used, or the connection band 2 such as a rope or wire is used.
0 is used, the panel support member 15a provided on the connecting chain 15 is swung at the position of the sprocket 20 in the panel conveyance process to make the amount of movement of the panel 20 longer than the amount of movement of the connecting chain 15. Since the annular member 3b is disposed and the structure is similar to the third invention described later, all the panels 20 operate without gaps as the guide rotary body 3 rotates when moving up and down within the guide rail. However, in the transfer area, the preceding panel 20 is raised faster than the panel 20 below it, and the preceding panel 20 rises to create a gap between it and the lower panel 20, and the vertical movement and lateral movement are combined. Since mutual relay is performed, although it can be opened and closed at high speed, when the panels 20 are lowered, each panel 20 fits with the preceding panel 20 at a position slightly lowered from the storage case 1, and thereafter the connecting band 16 Since the panels are individually supported and lowered, each panel is lowered in a state in which they are in close contact with each other, and there is no gap for inserting fingers, and it is possible to reliably prevent so-called finger jamming from occurring. can.

Furthermore, FIGS. 11 and 16 show an embodiment of the third invention, in which reference numeral 1 denotes a storage case, and winding devices 2a are disposed on the left and right sides of the interior, respectively. As shown in FIG. 13, this winding device 2a includes a storage case 1.
It has a sprocket 2 rotatably supported via a bearing 2b on a bracket plate 1a fixed to the bracket plate 1a, and a connecting chain 15 of a predetermined length is engaged with the sprocket 2, and this sprocket 2 is rotationally driven by the opening/closing machine 10. It is connected to an intermediate sprocket 9 via an endless chain 7 and is driven to rotate. Further, as shown in FIGS. 12 and 13, the sprocket 2 is fixed to a rotating shaft 2c supported by a bracket plate 1a via a bearing 2b, and a cylindrical spacer 3 is attached to the outer surface of the rotating shaft 2c.
An annular member 3b serving as a guide member is integrally attached to the sprocket 2 via b1. The outer diameter of this annular member 3b is selected to be larger than the outer diameter of the sprocket 2. In addition, the bracket plate 1a has
A chain presser 13 is fixed to the sprocket 2 to guide the outer peripheral edge of the connecting chain 15 engaged with the sprocket 2 and prevent it from coming off.

Further, on the rear side of the sprocket 2, a storage rail 18 that is slightly inclined backward and downward is arranged to guide an upper guide roller 22 of a panel 20, which will be described later. A chain guide 17 is disposed below the sprocket 2 to guide a lower guide roller 26a of the panel 20, which will be described later, at a predetermined interval.
Two dogleg-shaped guide rails 40a arranged approximately in parallel,
A roller guide 40 consisting of 40b is provided.

The connecting chain 15 is shown in FIGS. 14(a) to 14(c).
), a pair of links 15b with a predetermined pitch P,
15b are fixed by pins 15c at predetermined intervals, and three adjacent pins 15c1 to 15c3 are fixed at intervals equal to the panel height L of the panel 20, which will be described later.
The pins 15c4, which protrude to the left as seen in FIG. 14(c) and are connected to the pins 15c3 on the lower end side, are spaced apart by two pitches, and as shown in FIG. 14(b), the pins 15c4 are separated from each other by two pitches. They are connected by substantially dogleg-shaped deformed links 15d and 15e in which a curved recess 6f is formed. A trapezoidal panel support member 15a is disposed on pins 15c1 to 15c3 of the connection chain 15 so as to be swingable within a predetermined range. This panel support member 15a has a pin 15c.
The through hole 21a1 that engages with the pin 15c2, 1
Arc grooves 21a2 and 21a3 are formed around the center of the through hole 21a1 that engages with the curved recesses 15f of the deformable links 15d and 15e.
A through hole 21a4 through which the support shaft 21 of the panel 20 rotatably passes is formed at a position corresponding to the retaining ring 21a5.
It is attached so that it can swing freely.

The panel 20 has support shafts 21 symmetrically formed projecting from above the left and right end faces thereof, and these support shafts 21 are connected to the through holes 21a4 of the panel support member 15a.
An upper guide roller 22 is attached to the extended end of the connecting chain 15, and a lower guide roller 26a is attached to the back side, and a fitting protrusion 25 is attached to the upper end surface. is formed, and a fitting groove 24 that fits into the fitting protrusion 25 is formed on the lower end surface.

Next, the operation of the above embodiment will be explained. now,
As shown in FIG. 11, each panel 20 has a connecting chain 15
It is assumed that a shutter curtain is formed by hanging down from the In this state, panel support members 15a are swingably attached to the connection chain 15 at the same intervals as the height L of the panel 20, and the support shaft 21 of the panel 20 is supported by the panel support member 15a. From, panel 2
In the hanging state of 0, the fitting protrusion 25 of the adjacent panel 20
and the fitting groove 24 fit into each other, so that each panel 20 can close the frontage in a close contact state. From this state, when the opening/closing machine 10 is driven to rotationally drive the sprocket 2 and the connecting chain 15 is wound upward, until the panel support member 15a that supports the uppermost panel 20 reaches the sprocket 2, all panels 20 rise together, but when the panel support member 15a that supports the uppermost panel 20 reaches the sprocket 2 position, the support shaft 21 of the panel 20 supported by the panel support member 15a moves to the sprocket 2. It will engage with the outer peripheral surface of the attached annular member 3b. In this state, when the sprocket 2 continues to rotate, the outer diameter of the annular member 3b is selected to be larger than the outer diameter of the sprocket 2, so the amount of movement of the support shaft 21 relative to the amount of movement of the connecting chain 15 gradually increases, thereby gradually dissolving the fitting state between the fitting groove 24 on the lower end surface of the uppermost panel 20 and the fitting protrusion 25 on the lower end surface of the lower panel 20. When this fitted state is released, the lower guide roller 26a of the panel 20 moves to the guide rail 4 of the roller guide 40.
By being guided by 0a, as shown in FIG. 15, it rotates counterclockwise from the vertical plane and moves in an inclined state. Next, when the annular member 3b of the sprocket 2 rotates together with the sprocket 2 and the upper guide roller 22 of the panel support member 15a engages with the upper end of the storage rail 18, the lower guide roller 26a engages with the roller guide 40.
At the same time, the connecting chain 15 separates from the sprocket 2, and the panel 20 hangs down with the upper guide roller 22 engaged with the storage rail 18. and,
When the sprocket 2 further rotates, the subsequent panel 20 similarly releases the fitting state between the fitting groove 24 and the fitting protrusion 25, and its upper guide roller 22 is guided by the storage rail 18 and hangs down. As a result, the panels in the storage case 1 are sequentially pressed and moved rearward. When each panel 20 is stored in the storage case 1 in this way, the driving of the opening/closing machine 10 is stopped, and in this state, the frontage is opened and becomes a fully open state.

Furthermore, if the switch 10 is driven in the opposite direction to that described above from this fully open state, and the sprocket 2 is rotated in the reverse direction,
The connecting chain 15 engaged with this is let out,
When the frontmost panel 20 that is engaged with the storage rail 18 is drawn toward the sprocket 2 and the upper guide roller 22 of the panel 20 separates from the storage rail 18, its support shaft 21 moves toward the annular member 3b of the sprocket 2. engage with. At this time, the panel support member 15a has the circular arc groove 21a.
2 and 21a3, so that when moving from the storage rail 18 to the sprocket 2, the weight of the panel 20 prevents it from falling backwards, and the support shaft 21 and the annular member 3b can be smoothly engaged. When the panel support member 15a moves to the sprocket 2, the lower guide roller 26a comes into contact with the guide rail 40a of the roller guide 40, and then the panel 20 descends as the sprocket 2 rotates, causing the lower guide roller 26a to come into contact with the guide rail 40a of the roller guide 40.
6a is guided by the guide rails 40a and 40b, the position of the lower guide roller 26a is regulated, and during this time, the support shaft 21 descends in an arc shape as the annular member 3b rotates, so that the lowermost stage is panel 20
The fitting groove 24 gradually approaches the upper end side, and accordingly, the fitting groove 24 starts fitting into the fitting protrusion 25, and the support shaft 21 disengages from the outer circumference of the annular member 3b. Then, the fitting protrusion 25 of the leading panel 20 and the fitting groove 24 of the trailing panel 20 are completely fitted and lowered together. Thereafter, the following panels 20 are lowered in a fitted state with the preceding panel 20, so that each panel 20 descends in sequence without any gaps between them, and when the lowest panel lands, the sprocket 2 Rotation is stopped.

[0038] In this way, when the panel 20 is raised and lowered, it is raised and lowered without creating a gap between the panels 20 adjacent to each other, so that the so-called finger jamming accident in which a finger is caught between the panels and injured when the panel 20 is raised and lowered is avoided. In addition, the panel support member 15a is swingably attached to the connection chain 15, and the panel support member 15a is swung to the sprocket 2 position, so that the amount of movement of the panel 20 is controlled by the connection chain. The amount of movement is greater than 15,
It has an extremely simple configuration that only requires the annular member 3b as a guide member to eliminate the fitted state between the panels 20, and there is no need to provide a roller guide with a complicated shape, making the construction easy. be able to.

Note that in the above embodiment, the panel 20
Although the case has been described in which the guide member that makes the amount of movement longer than the amount of movement of the connecting chain 15 is the annular member 3b formed integrally with the sprocket 2, the present invention is not limited to this, and for example, A chain presser 13 provided to prevent the connecting chain 15 from coming off is extended to the lower end of the sprocket 2, and the upper guide roller 22 is guided to be placed on the chain presser 13, thereby swinging the panel support member 15a. It may be structured to move, and
In this case, the chain presser 13 does not necessarily have to be arcuate, and the lower guide roller 26 of the panel 20
It may be provided only until a is engaged with the roller guide 40 and its lower end is in conflict with the upper end of the lower panel.

Furthermore, in the above embodiment, the connecting chain 15
Although a case has been described in which the deformed links 15d and 15e are provided, these deformed links 15d and 15e are omitted and the support shaft 21 is directly connected to the link 15b of the chain 15.
, 15b.

Further, in the above embodiment, a case has been described in which the plate-shaped panel support member 15a is applied as the panel support member, but the present invention is not limited to this, and the panel support member 15a is attached to the connecting chain 15 so as to be swingable. 20 support shafts 2
As long as the structure can support 1, the structure is not limited to a plate shape, but can be any structure such as a block body.

Furthermore, in the above embodiment, the support shaft 21
The case has been described in which the upper guide roller 22 is attached to the extended end of the panel support member 15a, but the upper guide roller 22 may be attached to the panel support member 15a instead of the support shaft 21. good.

[0043]

[Effects of the Invention] As is clear from the above explanation, the present invention provides the following particularly remarkable effects.

(1) In the panel transfer process, there is a delay in the transfer of the lower side of the panel due to the panel edge of the panel 20 on the sprocket 2 side being conveyed slightly faster than the panel edge on the guide rotor 3 side. This is prevented by forcibly engaging and disengaging the guide shaft 26 with the guide rotating body 3, and furthermore, the connecting band 1
6 allows each panel 20 to be forcibly fed into the guide rotating body 3, so when the shutter curtain is opened and closed at high speed, it is possible to cope with the high-speed movement of the panels 20 in mutual transfer during the transfer process. As in the past, the bottom end of the panel becomes a free end and swings back and forth around the roller shaft 21 as a fulcrum due to motion inertia, and subsequent panels get caught and cannot be moved up or down without being transferred to the storage rail or guide rail. , it is possible to reliably prevent accidents that damage the panel.

Moreover, although the panels 20 are opened and closed at high speed, when the panels 20 are lowered, each panel 20 fits with the preceding panel 20 at a position slightly lowered from the storage case 1, and thereafter, each panel 20 is individually connected by the connecting band 16. Since the panels are lowered while being supported by the panels, each panel is lowered in a state in which they are in close contact with each other, and there is no gap for inserting fingers, so it is possible to reliably prevent so-called finger jamming from occurring.

(2) During the relaying process, each panel 20 causes a relaying delay on the upper side of the panel 20. In order to prevent this relaying delay, each panel 20 is provided with a guide rotor 3 as a forced guiding mechanism. By forcibly engaging and disengaging the guide shaft protruding from the upper side of the panel, a delay in conveyance on the upper side of the panel can be prevented. Therefore, by suspending the lower side of the panel 20, the conveying of the lower side of the panel 20 is always completed in advance of the upper side of the panel 20, and especially when the lower side of the panel 20 is guided during closed conveyance. Because the transfer to the rail is faster, compared to the conventional case where there was a delay in transiting the lower side of the panel 20, the time lag due to the delay in transiting the upper side of the panel 20 can be minimized.
Since the upper side of the panel 20 is already rolled on the storage rail 18 and is engaged with the guide rotating body 3 in a state where its swing is restricted, even if the lower side of the panel 20 swings, reliable transfer is possible. will be held. Furthermore, since the upper end side of each panel 20 can be forcibly fed into the guide rotating body 3 by the connecting band 16, when the shutter curtain is opened and closed at high speed, it is possible to prevent the panels from moving at high speed when mutually conveying the panels in the conveying process. is also extremely advantageous. Moreover, even though the panels 20 are opened and closed at high speed, when the panels 20 are lowered, each panel 20 fits with the preceding panel 20 at a position slightly lowered from the storage case 1, and from then on, each panel is firmly attached to each other. The lowering is performed in this state, and there is no gap for inserting fingers, and so-called finger jamming can be reliably prevented from occurring.

(3) When the panels 20 are to be transferred, a gap is created between the panels 20 that are vertically adjacent to each other at the sprocket 2 position, and the panels 20 are disengaged from each other;
When going up and down, the panels 20 are moved up and down with the panels 20 completely fitted together, so there is no risk of getting your fingers caught between the panels and getting injured when the panels 20 are going up and down, and there is no risk of injury. For this purpose, the panel support member 15a is swingably attached to the connection chain 15, and the panel support member 15a is attached to the sprocket 2 position.
To make the movement of the panels 20 larger than the movement of the connecting chain 15 by swinging the panels 20, and to have an extremely simple structure in which only an annular plate 3b is provided as a guide member to eliminate the fitted state between the panels 20. There is no need to provide a roller guide with a complicated shape, and construction can be easily performed.

[0048]

[Brief explanation of the drawing]

[Fig. 1] A schematic side view of a panel shutter showing an embodiment of the first invention.

[Figure 2] Perspective view of the side end surface of the panel

[Figure 3] Side view showing the storage state of the panel

[Fig. 4] A perspective view of a side end surface portion of a panel showing another embodiment.

[Fig. 5] A schematic side view of a panel shutter showing an embodiment of the second invention.

[Fig. 6] Diagram explaining the operation of panel relaying using the guide rotor

[Fig. 7] A schematic side view of a panel shutter showing another embodiment.

[Figure 8] Perspective view of the side end surface of the panel

FIG. 9 is a schematic side view of a panel shutter showing still another embodiment.

[Fig. 10] Perspective view of the side end surface of the panel

[Figure 11] Third
A schematic configuration diagram of a panel shutter showing an embodiment of the invention

[Fig. 12] Side view showing a sprocket with a part cut away

[Figure 13] Longitudinal cross-sectional view of Figure 12

[Fig. 14] (a), (b), and (c) are a plan view, a side view, and a front view of the connecting chain with the panel support member attached, respectively.

[Fig. 15] An explanatory diagram of the operation of panel relay using a guide member.

[Fig. 16] An explanatory diagram showing the state of the panel support member between the storage rail and the sprocket.

[0049]

[Explanation of symbols]

1 Storage case 2 Sprocket 3 Guide rotating body 3b Annular member 15 Connecting chain 15a Panel support member 16 Connecting belt 21 Support shaft 26 Guide shaft

Claims (9)

[Claims] Claim 1: The forward and reverse rotation of a sprocket is suspended by a connecting chain via a support shaft protruding from the upper side of each panel of a plurality of panels, and is disposed near a storage rail provided in the front and back direction inside a storage case. The panel shutter is configured to open and close the opening through a mutual transfer process of vertical movement along the vertical guide rails provided on the left and right sides of the opening and lateral movement along the storage rail in conjunction with the movement of the panel shutter. A forced guide mechanism is provided at the bottom of the sprocket to prevent a delay in transferring the lower side of the panel during panel transfer, and the forced guide mechanism includes a guide shaft protruding from the bottom of each of the plurality of panels. A panel shutter device comprising a guide rotating body that engages and disengages. Claim 2: Each panel of the plurality of panels is suspended by a connecting chain, and vertical guides are provided on both the left and right sides of the opening in conjunction with the forward and reverse rotation of a sprocket arranged inside the storage case. In a panel shutter configured to open and close the opening through a mutual transfer process of vertical movement along the rail and lateral movement along the storage rail arranged in the front and back direction inside the storage case, the sprocket is located below the storage rail. The connecting chain is suspended via a support shaft protruding from the bottom of each panel, and a sprocket is installed on the top of the sprocket to prevent a delay in the connection of the upper side of the panel when the panels are connected. A panel shutter device characterized in that a forced guide mechanism is provided, and the forced guide mechanism is constituted by a guide rotating body that engages with and disengages from a guide shaft protruding above each of the plurality of panels. 3. The guide shafts protruding from both sides of each panel forming the shutter curtain are provided with connection bands that connect the guide shafts to each other. The panel shutter device according to item 2. 4. The panel shutter device according to claim 1, wherein the connecting band is made of wire. 5. The first aspect of the present invention is characterized in that the connecting band is constituted by a chain and is meshed with the guide rotating body.
The panel shutter device according to item 1, 2 or 3. 6. The guide shaft is configured to be slidable in the vertical direction, and the connecting bands are attached at a pitch substantially equal to the panel height, and are configured to be driven at a slower speed than the connecting chain. A panel shutter device according to claim 3, 4, or 5. 7. Claims 1, 2, 3, and 4, characterized in that the sprocket and the guide rotating body are interlocked with each other by an endless chain and driven to rotate synchronously. 6. The panel shutter device according to item 5 or 6. 8. A panel support member is attached to the connection chain so as to be swingable within a predetermined range at a pitch equal to the panel height, and a support shaft formed on the panel is pivotally supported by the panel support member. In addition, a guide member is disposed at the sprocket position to swing the panel support member and make the amount of movement of the panel longer than the amount of movement of the connecting chain. Section, 2nd
The panel shutter device according to item 1, 3, 4, 5, or 7. 9. Vertical guides provided on both left and right sides of the opening in which each panel of the plurality of panels is suspended by a connecting chain, and is linked to the forward and reverse rotation of a sprocket disposed within the storage case. In the panel shutter configured to open and close the opening through a mutual transfer process of vertical movement along the rail and lateral movement along the storage rail arranged in the front and back direction inside the storage case, the panel is attached to the connecting chain. A panel support member is attached to be swingable within a predetermined range at a pitch equal to the height, a support shaft formed on the panel is pivotally supported on the panel support member, and the panel support member is attached to the sprocket position. A panel shutter device characterized by being provided with a guide member that swings the member to make the amount of movement of the panel longer than the amount of movement of a connecting chain.