JP2515371B2 - Panel shutter device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention closes the entrance and exit in a state where the upper and lower parts of each panel are in contact with each other and are arranged side by side in the vertical direction. The present invention relates to a panel shutter device capable of accommodating each panel on the upper side of an entrance / exit in a state where the panels are arranged side by side.

(Prior Art and Problems to be Solved by the Invention) Conventionally, a panel shutter device of this type is disclosed in, for example, Japanese Patent Laid-Open No. 58-62273. In this device, a conveyor chain is wound around a conveyor sprocket, and each panel is connected to the conveyor chain at equal intervals. The upper end of the transport chain is fixed to the machine frame.

Then, when each panel closes the entrance / exit, a part of the transport chain between the upper end of the transport chain fixed to the machine frame and the uppermost panel is stretched, and each panel is housed. At this time, a part of the carrier chain between them bends between the top panel and the machine casing.

(Problems to be Solved by the Invention) However, in this conventional device, the upper end of the transport chain is always fixed to a fixed position of the machine frame, and therefore, the space between the upper end of the transport chain and the uppermost panel is fixed. Since part of the transport chain requires a length that allows the topmost panel to move to the closed position, if part of this transport chain is too long, when each panel is stowed There was a problem that some of them were folded many times and accumulated.
Therefore, not only a space for accumulating the transport chains is required, but also the transport chains may be damaged due to frequent bending, or may be left bent to hinder the transport.

The object of the invention described in the first claim is to make the upper end of the above-mentioned carrier chain movable without fixing,
It is intended to shorten the length of a part of the transport chain between the upper end of the transport chain and the uppermost panel, and to prevent accumulation in a part of the transport chain when the uppermost panel is stored.

In addition to the object of the invention described in the first aspect, the object of the invention described in the second aspect is to detect when the movable member connecting the upper end portion of the transport chain moves a certain amount or more when the respective panels descend. Is to be able to.

In addition to the object of the invention described in the first aspect, the object of the invention described in the third, fourth, and fifth claims can smoothly move the transport chain when opening and closing each panel. To do so.

Configuration of the Invention (Means for Solving the Problem) The invention described in the first claim is connected to a panel raising / lowering guide rail 4 and an upper end portion of the guide rail 4 as shown in the drawings of an embodiment described later. Panel storage guide rails 5 and 6, transport sprockets 14 and 16 provided near the upper end of the panel lifting guide rail 4, transport chain 19 wound around the transport sprockets 14 and 16, and transport chain 19 And a plurality of panels 37 connected to each other at equal intervals, and each panel 37 is moved up and down by the movement of the transport chain 19 according to the rotation of the transport sprockets 14 and 16. Move along 5 and 6 to close each panel 37 in the up and down direction along the panel elevating guide rails 4, and set each panel 37 at the upper end of the panel elevating guide rails 4. In the panel shutter device arranged so as to be able to take a stored state arranged along the channel storage guide rails 5 and 6, between the front end portion and the rear end portion of the panel storage guide rails 5 and 6. The movable member 48, which is located rearward of the rearmost panel 37 in the stored state, is tilted downward as it goes away from the upper end of the panel raising / lowering guide rail 4 along the panel storing guide rails 5 and 6. The movable chain 48 is movably supported and the upper end of the transport chain 19 wound around the transport sprockets 14 and 16 is connected to the movable member 48.

In the invention described in the second aspect, as shown in the drawings of the embodiments described later, in the invention described in the first aspect, when the movable member 48 is moved to the side of the conveying sprockets 14 and 16, the movable member 48 is moved. A switch 52 for detection is provided.

In the invention described in claim 3, as shown in the drawings of the embodiment described later, in the invention described in claim 1, the transport sprocket is provided between a pair of upper and lower panel storage guide rails 5, 6. Guide rail for panel lifting 4
A first transport sprocket 14 that winds the transport chain 19 along the direction to turn around, and a transport chain 19 is wound between the first transport sprocket 14 and a movable member 48 that is behind the transport sprocket 14. Second transport sprocket
It consists of 16 and.

In the invention described in the fourth aspect, as shown in the drawings of the embodiments described later, in the invention described in the third aspect, the lower side of the carrier chain 19 is contacted between the two carrier sprockets 14 and 16. Chain guide member that can regulate downward movement
35 is provided.

In the invention described in claim 5, as shown in the drawings of the embodiment which will be described later, in the invention described in claim 3, the second transport sprocket 16 and the same transport sprocket 16 are used.
A chain guide member (36) is provided which can contact the upper and lower sides of the transport chain (19) with a movable member (48) behind the chain guide member and regulate the vertical movement thereof.

(Operation) In the invention described in the first aspect, the transport chain
Movable member 48 as each panel 37 moves up and down by the movement of 19
Also moves.

In the invention described in the second aspect, in addition to the operation of the invention described in the first aspect, it is possible to detect when the movable member 48 comes closer to the transport sprocket 14, 16 side than necessary.

According to the third aspect of the invention, in addition to the function of the first aspect of the invention, each panel 37 is mainly moved up and down by the first transport sprocket 14 and is transported by the second transport sprocket 16. Each panel 37 moves along the chain 19 along the panel storage guide rails 5 and 6.

In the invention described in the fourth aspect, in addition to the function of the invention described in the third aspect, the first conveying sprocket 14
The downward movement of the transport chain 19 which has been turned from is blocked.

In the invention described in claim 5, in addition to the function of the invention described in claim 3, the second conveying sprocket 16
The vertical movement of the transport chain (10) connected to the movable member (48) is prevented.

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

Posts 2 are erected on both left and right sides of a doorway 1 shown in FIG. 1, and a panel storage bracket 3 is provided at an upper end portion of the post 2.
Are attached so as to project inwardly of the doorway 1. The panel elevating guide rails 4 are vertically attached to the insides of the two columns 2, and a pair of upper and lower guide rails 5 and 6 for accommodating the panels are formed inside the brackets 3 as shown in FIG. The upper and lower panel storage guide rails 5 and 6 are attached horizontally, and are inclined slightly downward as they move rearward from the panel elevating guide rail 4.

At the connecting portions 7 and 8 between the panel lifting guide rails 4 and the upper and lower panel storage guide rails 5 and 6, the guide openings 9 and 10 of the upper and lower panel storage guide rails 5 and 6 are the panel lifting guides. As it approaches the rail 4, it inclines largely downward, and the guide port 9 of the upper panel storage guide rail 5 is connected to the upper end of the panel elevating guide rail 4 through the communication port 11 and the lower panel storage guide. The guide port 10 of the rail 6 is connected to the panel lifting guide rail 4 through the communication port 12 below the communication port 11.
An opening 13 opened between the upper and lower guide rails 5 and 6 for housing the panel is formed on the rear side of the guide rail 4 for raising and lowering the panel between the communication ports 11 and 12.

A first transfer sprocket 14 is fixed to the rotary shaft 15 in the vicinity of the opening 13 of the panel elevating guide rail 4 inside the left and right brackets 3 between the upper and lower panel accommodating guide rails 5, 6. . Of the front and rear sides of the first transfer sprocket 14, a second transfer sprocket 16 is installed inside the left and right brackets 3 adjacent to the rear side opposite to the opening 13 of the panel lifting guide rail 4. It is fixed to the drive shaft 17. Also, the first transfer sprocket
A guide sprocket 18 is located slightly below 14 inside the left and right brackets 3 and has an opening 13 in the guide rail 4 for raising and lowering the panel.
It is supported to bite inside. A single transport chain 19 is wound around the guide sprocket 18 and both transport sprockets 14 and 16, and the transport chain 19 hangs through the opening 13 into the panel elevating guide rail 4 and both transport sprockets. It is turned at 14, 16 and extends rearward along the panel storage guide rails 5, 6.

This guide sprocket 18 and the first transport sprocket
The transport chain 19 between the two is provided with a slanted portion 19a that is slanted with respect to the vertical direction along the panel elevating guide rail 4 so as to approach the transport sprocket 14 as it goes upward. The slanted portion 19a is parallel to the center line L of the guide rails 5 and 6 for accommodating the upper and lower panels, which extends along the inclination direction of the guide openings 9 and 10.

An electric motor 20 is mounted inside one of the brackets 3 near the rear end of the lower panel storage guide rail 6 opposite to the panel elevating guide rail 4. Further, as shown in FIG. 3, a transmission shaft 21 is rotatably supported between the left and right brackets 3 above the electric motor 20, and a pair of driven sprockets 22, 23 are provided at both ends of the transmission shaft 21. Is fixed. As shown in FIG. 4, a drive sprocket 24 is fixed to the output shaft 20a of the electric motor 20, and a drive chain 25 is stretched between the drive sprocket 24 and one driven sprocket 22 on the transmission shaft 21. ing. Driven sprockets 26, 27 are fixed to the rotating shafts 15, 17 for supporting the two transfer sprockets 14, 16 between the two transfer sprockets 14, 16 and the bracket 3,
A transmission chain 28 is stretched between the two driven sprockets 26, 27 and the other driven sprocket 23 of the transmission shaft 21 via a tension sprocket 29. Then, the rotation of the electric motor 20 is transmitted to both the carrier sprockets 14 and 16 via the drive chain 25 and the transmission chain 28 on the one bracket 3 side, while the other bracket 3
On the side, it is transmitted to both carrier sprockets 14 and 16 via a transmission shaft 21 and a transmission chain 28. The electric motor 20 has a brake mechanism and a speed control mechanism.

A limit switch 30 is attached to the inner side of one of the brackets 3 below the electric motor 20, and the driven sprocket 3 fixed to the rotating shaft 30a of the limit switch 30.
A transmission chain 33 is stretched between 1 and a driven sprocket 32 fixed to the output shaft 20a of the electric motor 20. Then, the rotation of the electric motor 20 is transmitted to the rotating shaft 30a of the limit switch 30 via the transmission chain 33. Although not shown in detail, the movable body reciprocates in the limit switch 30 as the rotary shaft 30a rotates forward and backward. When the movable body reciprocates for a set distance or more, the electric motor 20 stops. ing.

The transmission shaft 21 installed on the left and right brackets 3 has a first
As shown in FIGS. 4 and 5, a special gear coupling 34 is provided above the electric motor 20. The transmission shaft 21 is separated into both shafts 21a and 21b by this gear coupling 34, and the driven sprocket 22,
23 is fixed, and the connecting body 3 is attached to the other shaft 21b.
4a is fitted so as to be integrally rotatable. Three long holes 34b are formed in the circumferential direction in the connecting body 34a, and an internal tooth body 34d is connected to the connecting body 34a by a bolt 34c inserted in the long hole 34b. External teeth 34e are formed on one shaft 21a,
The external teeth 34e are fitted to the internal teeth 34d. This gear coupling 34 not only allows the shaft centers of the two shafts 21a and 21b to be out of alignment, but also adjusts the tension of the transmission chain 28 via the driven sprocket 23 fixed to the transmission shaft 21. You can do it.

As shown in FIG. 6, chain guide members 35 and 36 are attached to the inside of the left and right brackets 3 between the two transfer sprockets 14 and 16 and on the rear side of the second transfer sprocket 16 so that the transfer chain 19 is vertically moved. The chain guide members 35, 36 are in contact with both sides of the carrier chain 19 to regulate the vertical movement of the carrier chain 19.

Each panel 37 is provided with an upper frame 38 and a lower frame 39, a plurality of middle frames 40 are provided between the upper and lower frames 38, 39, and a window glass 41 is fitted between them.
As shown in FIG. 7, the middle frame 40 is composed of a main body 40a and a cover 40b. In the middle frames 40 at the left and right ends of each panel 37, the fitting plate portions 42a of the side brackets 42 are covered with the main body 40a of the middle frame 40.
It is inserted between 40b and fixed by a screw 43a and a nut 43b. The supporting portion 42b of the side bracket 42 projects laterally from the middle frame 40, and as shown in FIG. 8, guide rollers 44, 45 are supported at the upper and lower ends of the supporting portion 42b.

Between the upper and lower guide rollers 44, 45, a connecting member 46 is supported by a supporting portion 42b of the side bracket 42 so as to be rotatable by its shaft portion 46a and movable in the axial direction. The chain connecting member 46 is located slightly above the center of the panel 37 in the vertical direction, and the chain connecting member 46 is located slightly above the center of gravity G of the panel 37. The left and right chain connecting members 46 of each panel 37 are the left and right transport chains 19 described above.
Are connected to each other by a pair of pins 47 at equal intervals. The upper guide roller 44 of each panel 37 is a guide rail 4 for raising and lowering the panel and a guide rail 5 for storing the upper panel.
It is fitted so as to be movable with respect to each panel
The lower guide roller 45 of 37 is movably fitted in the panel elevating guide rail 4 and the lower panel accommodating guide rail 6. A part of the supporting portion 42b of the side bracket 42 is inserted into the panel elevating guide rail 4.

When removing each panel 37 from the transport chain 19, the screws 43a and the nuts 43b are removed from the inner frames 40 at the left and right ends to separate the main body 40a and the cover 40b from the fitting plate portion 42b of the side bracket 42. The panel 37 can be removed. When each panel 37 is removed, the side bracket 42 and the chain connecting member 46 remain on the transport chain 19. Meanwhile, each panel 37
To attach the to the transport chain 19, reverse the procedure for removing. In this way, each panel 37 can be attached / detached and exchanged easily.

As shown in FIGS. 9 and 10, a groove 38a extending in the left-right direction is formed on the upper surface of the upper frame 38 of each panel 37, and protrusions 38b, 38c protruding upward are provided on both front and rear sides of the groove 38a. Has been. Grooves 38d and 38e extending in the left-right direction are formed on the rear side of the one protrusion 38b and on the front side of the other protrusion 38c, respectively, and a protrusion 38f protruding upward is provided on the front side of the one groove 38e. There is. The inner bottom surface of each groove 38d, 38a, 38e and each ridge 38
The upper ends of b, 38c, and 38f are located higher on the front side.

Meanwhile, the upper frame 38 is also formed on the lower surface of the lower frame 39 of each panel 37.
Each groove similar to each groove 38d, 38a, 38e and each ridge 38b, 38c, 38f
39d, 39a, 39e and ridges 39b, 39c, 39f are formed, and they are point-symmetric with respect to the vertical center of the panel 37 by 180 degrees. The movable member 48 is located behind the rearmost panel 37 in both the left and right brackets 3 and has upper and lower guide rollers 49, 50 as with each panel 37. The upper guide roller 49 is movably fitted to the upper side of the upper panel storage guide rail 5, and the lower guide roller 50 is movable to the lower side of the lower panel storage guide rail 6. Is fitted into. The upper end of the transport chain 19 is connected to a connecting portion 51 formed on the movable member 48 between the guide rollers 49 and 50. At the rear ends of the guide rails 5 and 6 for housing both the upper and lower panels, there is a stopper portion that prevents the movable member 48 from moving rearward.
5a and 6a are formed. A limit switch 52 is attached inside the left and right brackets 3 above the upper panel storage guide rail 5 and in the vicinity of the second transport sprocket 16, and the movable member 48 moves forward to move the second switch. When approaching the transport sprocket 16, the support shaft 49a of the guide roller 49 above the movable member 48 is operated.

The detection signal of the limit switch 52 and the detection signal of the limit switch 30 are sent to the control section C.

Now, as shown in FIG. 1, when the doorway 1 is closed by each panel 37, both upper and lower guide rollers 44, 45 of each panel 37 are inside the panel elevating guide rail 4 as shown in FIG. The panels 37 are arranged side by side in the vertical direction along the panel lifting guide rails 4. As shown in FIG. 9, the upper and lower frames 38, 39 of each panel 37 are fitted to the upper and lower frames 38, 39 of the adjacent panels 37, and in the fitted state, the upper and lower frames 38, 39 are placed in the groove 38e of the upper frame 38. The ridge 39b of the frame 39 is inserted into contact with the inner bottom surface of the groove 38e, and the upper frame 38
Ridge 38b is inserted into the groove 39e of the lower frame 39 and abuts the inner bottom surface of the groove 39e, and the ridge 38f of the upper frame 38 is inserted into the groove 39d of the lower frame 39 and the upper frame The ridge f of the lower frame 39 is inserted into the groove 38d of 38. Then, the grooves 38e, 3 of the upper and lower frames 38,39
9e and the protrusions 38b and 39b, and the grooves 38d and 39d and the protrusions 38f and
The seal by fitting with 39f and the space S formed between them prevent the entry of dirty water and improve the airtightness.

On the other hand, the left and right movable members 48 are pulled forward by the upper ends of the left and right transport chains 19 and moved, and the limit switch 5 is moved by the support shaft 49a of the guide roller 49 above the movable member 48.
2 is stopped just before it is activated.

In this closed state, when the electric motor 20 is driven by a signal from the control unit C, both left and right transport sprockets
Both the left and right transport chains 19 move upward by rotation of 14, 16 and each panel 37 rises along the panel elevating guide rail 4. At this time, the left and right movable members 48 are attached to the transport chain 19
Along with the movement of, it moves rearward along the guide rails 5 and 6 for storing both upper and lower panels.

Regarding the uppermost panel 37 (hereinafter 37A), as shown in FIG. 11 (a), the chain connecting member 46 of the panel 37A is used.
When the guide sprocket 18 reaches the guide sprocket 18, the upper guide roller 44 of the panel 37A is located at the upper end of the panel raising / lowering guide rail 4 and the upper panel storage guide rail 5
The guide roller 45 on the lower side of the panel 37A is located in the vicinity of the communication port 11 between the guide port 9 and the guide port 9 and the lower guide rail 6 for storing the panel is located in the guide rail 4 for raising and lowering the panel. It is located in the vicinity of the communication opening 12 between the guide opening 10 and.

As shown in FIG. 11B, when the chain connecting member 46 of the panel 37A passes through the guide sprocket 18 and reaches the slanted portion 19a of the transport chain 19 between the guide sprocket 18 and the front transport sprocket 14, the panel 37 moves up and down. Guide rails for storing both panels 5,
The guide roller 4 is pulled toward the guide ports 9 and 10 of 6 and the lower guide roller 4
While the 5 is pressed against the inner surface (regulating portion 8a) of the panel elevating guide rail 4, the upper guide roller 44 is connected to the communication port 11
Be led to. By the time the upper guide roller 44 reaches the communication port 11, the lower guide roller 45 separates from the regulating portion 8a of the panel elevating guide rail 4 and begins to be inserted into the communication port 12. At this time, the lower frame 39 of the uppermost panel 37A starts to separate from the upper frame 38 of the second panel 37B from the top.

Further, when the chain connecting member 46 of the panel 37A moves along the slanted portion 19a of the transport chain 19 as shown in FIG. 11 (c), the panel 37A is pulled in the same manner as in the case described above, and the upper guide roller. The lower guide roller 45 is guided to the communication port 12 while the 44 is pressed against the inner surface of the guide port 9 (regulating portion 7a).

When the chain connecting member 46 of the panel 37A reaches the front transport sprocket 14 as shown in FIG. 11 (d), the lower guide roller 45 is also guided into the guide port 10.

Upper and lower guide rollers 44,4 guided to upper and lower guide ports 9,10
5 moves rearward along the upper and lower panel storage guide rails 5 and 6 as the transport chain 19 moves. With this movement, the left and right movable members 48 also move rearward and stop when they come into contact with the stopper portions 5a, 6a of the upper and lower panel storage guide rails 5, 6. Thereafter, as the panel 37A moves rearward, a part 19b of the transport chain 19 between the panel 37A and the movable member 48 sags between them, and the uppermost panel 37A is left and right as shown in FIG. It abuts on the movable member 48 and stops.

In this way, each of the second and subsequent panels 37, except the top panel 37A, also includes the upper and lower panel storage guide rails 5, 6
Guided upwards, the bottom panel 37 as shown in Fig. 13
Each panel 37 except D and the second panel 37C from the bottom is stored in a state where the front and rear surfaces of each panel 37 face each other so as to be along the panel storage guide rails 5 and 6, and are stored side by side. The second panel 37C from the bottom is stored in a state of being stopped near the rear transfer sprockets 14 and 16.

When the upper and lower guide rollers 44, 45 of the lowermost panel 37D reach the vicinity of the guide openings 9, 10 of the upper and lower panel storage guide rails 5, 6, the control unit C detects the detection based on the input signal from the limit switch 30. Since the signal is sent to the electric motor 20, the electric motor 20 is stopped and the electric motor 20 is braked so that the lowermost panel 37D stops at the upper end of the panel elevating guide rail 4. In this stored state, the weight of the lowermost panel 37D exerts a force to move both the left and right carrier chains 19 downward, but the movement is performed by the electric motor 20.
It is blocked by the braking action of.

In this stored state, when the brake is released while the electric motor 20 is stopped by the signal from the control unit C, the panel 37D is lowered by its own weight due to the weight of the bottom panel 37D, and the descending force causes the panel 37D to descend from the second stage. The eye panel 37C is also guided to the guide ports 9 and 10 of the guide rails 5 and 6 for storing the upper and lower panels, and the communication port 11 and
At 12, the panel 37C also descends due to the downward force exerted by its own weight.

At this time, as shown in FIG. 10, the ridges 39b and 39f of the lower frame 39 of the second panel 37C from the bottom are applied to the ridges 38f and 38b of the upper frame 38 of the lowermost panel 37D. In this state, they are guided to each other to be in the fitting state shown in FIG. Therefore, the upper and lower frames 38, 39 can be fitted smoothly and the lateral shake of the panel 37C can be restricted.

After that, the panels 37 on the third and subsequent stages from the bottom also descend in the same manner.

When the bottom panel 37D approaches the lower end of the doorway 1,
The uppermost panel 37A is a guide rail for storing both upper and lower panels
It moves forward along 5, 6 and reaches the upper end of the panel elevating guide rail 4 through the guide openings 9, 10 and the left and right movable members 48 are arranged along the upper and lower guide rails 5 and 6 for storing panels. Move forward.

When the bottom panel 37D reaches the lower end of the doorway 1,
Since the control unit C sends the detection signal to the electric motor 20 based on the input signal from the limit switch 30, the electric motor 20
Is stopped and the electric motor 20 is braked. As a result, the transport chain 19 stops and each panel
37 and the movable member 48 stop, and the entrance / exit 1 is closed by each panel 37.

When the movable member 48 moves toward the transport sprockets 14 and 16 and the limit switch 52 detects and operates the movable member 48, the control section C electrically drives the detection signal based on the input signal from the limit switch 52. The electric motor 20 is sent to the motor 20, and the electric motor 20 is stopped. The electric motor 20 is braked, the movement of the transport chain 19 is stopped, and the movable member 48 is stopped.

 In particular, this embodiment has the following features.

(A) Since the movable member 48 that connects the upper end of the transport chain 19 moves following the vertical movement of each panel 37, the transport chain 19 between the upper end of the transport chain 19 and the uppermost panel 37A is The length of the part 19b is shortened, and the part 19b of the transport chain 19 is less likely to be accumulated when the uppermost panel 37A is stored.

(B) Since the limit switch 52 that detects the movable member 48 when the movable member 48 moves to the transport sprockets 14 and 16 side is provided, as described above, the movement of the transport chain 19 is stopped and the movable member 48 moves. Stop. If this movable member 48 reaches the second transport sprocket 16, the transport chain 19
Can be separated from the transport sprocket 16, but this can be prevented.

(C) The transfer sprocket is provided between the pair of upper and lower guide rails 5 and 6 for storing the panel, and the first transfer sprocket 14 for winding and changing the direction of the transfer chain 19 along the guide rail 4 for raising and lowering the panel; One carrier sprocket 14
And the second transport sprocket 16 around which the transport chain 19 is wound between the transport sprocket 14 and the movable member 48 located behind the transport sprocket 14. Therefore, the first transport sprocket 14 is mainly used.
Each of the panels 37 is moved up and down by the second transport sprocket 16, and the transport chain 19 is moved along the guide rails 5 and 6 for storing both upper and lower panels by the second transport sprocket 16 and the movement of each panel 37 on the guide rails 5 and 6 is performed. Will be certain.

(D) Since the chain guide member 35 that can contact the lower side of the transport chain 19 between the two transport sprockets 14 and 16 and regulate the downward movement thereof is provided, it is difficult for the transport chain 19 to be caught in the first transport sprocket 14. Become.

(E) Second sprocket 16 and the same sprocket
Transport chain 19 between movable member 48 located behind 16
Since the chain guide member 36 capable of contacting both the upper and lower sides of the above and regulating the vertical movement thereof is provided, the second transport sprocket 16
When the winding angle of the carrier chain 19 with respect to the carrier chain 19 becomes small or when the carrier chain 19 is bent, the carrier chain 19 does not easily fall off from the second carrier sprocket 16, and the carrier chain 19 can be prevented from jumping. it can.

(F) Since each panel 37 is supported by the upper and lower guide rollers 44 and 45 by the upper and lower guide rails 5 and 6 for storage, it moves very stably.

(G) A chain connecting member 46 for connecting each panel 37 to the transport chain 19 is provided with upper and lower guide rollers 44, 4 of each panel 37.
Since it is provided between the first and second guide rollers, it is less likely that the conveying force acting on the upper and lower guide rollers 44, 45 will be significantly different from that of the conventional art. Therefore, both upper and lower guide rollers 44,45
The inclination of the panel 37 due to the difference in the conveyance force between the panels 37 becomes small, and the panels 37 do not shake greatly at the time of stop, and the possibility of collision with each other is reduced.

(H) In addition to the position regulation by the chain connecting member 46, one guide roller 4 is provided at the connecting portions 7 and 8 between the panel elevating guide rail 4 and the upper and lower panel accommodating guide rails 5 and 6.
By regulating the position of 4,45, the other guide roller 45,4
Since the restriction portions 7a and 8a for restricting the movement of the one guide roller 44, 45 so as to restrict the position of 4 are provided, the movement of the upper and lower guide rollers 44, 45 is restricted, and the guide rail 4 for raising and lowering the panel is provided. At the connection parts 7 and 8 between the upper and lower panel storage guide rails 5 and 6, it is possible to securely transfer the guide rails.
It moves smoothly without leaving 4,5,6.

(I) Since the chain connecting member 46 between each panel 37 and the transport chain 19 is provided above the center of gravity position G of each panel 37, the guide roller 45 on the lower side of the panel 37 is operated by the lever principle. It is located on the moving direction side of the upper guide roller 44, and is reliably transferred by the connecting portions 7 and 8 and moves smoothly.

(G) Conveyance chain along the guide rail 4 for raising and lowering the panel
A guide sprocket 18 is provided below the carrying sprocket 14 that winds and changes the direction of the carrying sprocket 14, and a carrying chain 19 is also wrapped around the guide sprocket 18, and a carrying chain 19 between the guide sprocket 18 and the carrying sprocket 14 is provided. The upper and lower guide rollers 44, 45 are for storing the upper and lower guide rollers when the upper and lower guide rollers 44, 45 are stored because the slanted portion 19a that is inclined with respect to the rising and lowering direction of each panel 37 is provided so as to approach the transport sprocket 14 as it goes upward. The guide rails 5 and 6 are pulled toward the guide ports 9 and 10, and are reliably transferred at the connecting portions 7 and 8 to smoothly move.

(L) Electric motor 2 that rotates the conveyor sprockets 14 and 16
0 and a brake that blocks the rotation of the transport sprockets 14 and 16 are provided, and when each panel 37 is in the stored state, at least the lowermost panel 37D is stopped at a position where it can descend due to its own weight, and the transport chain 19 is stopped. The electric motor 20 is stopped so as to give a moving force in the descending direction, and the control section C for activating the brake so as to prevent the descending is provided. Is improved. That is, in the past, the electric motor continues to rotate even when the descending of the panel is not smooth or the descending is stopped due to an obstacle, so that the transport chain is forcibly moved to the reverse winding state, and Although there was a risk that the sprocket and the transport sprocket would be damaged, this can be prevented.

According to the invention described in the first claim, the transport chain 19
The length of a part 19b of the transport chain 19 between the upper end of the transport chain 19 and the uppermost panel 37A is shortened, and when the uppermost panel 37A is stored, the part 19b of the transport chain 19 is less likely to be accumulated.

According to the invention described in the second aspect, in addition to the effect of the invention described in the first aspect, the movable member 48 is stopped by stopping the movement of the carrier chain 19 by the detection signal of the switch 52, for example. Therefore, the transport chain 1 that can occur when the movable member 48 comes too close to the transport sprockets 14 and 16.
9 can be prevented from leaving.

According to the invention described in claim 3, in addition to the effect of the invention described in claim 1, the panel storage guide rail 5,
The movement of each panel 37 on 6 is ensured.

According to the invention described in the fourth aspect, in addition to the effect of the invention described in the third aspect, it becomes difficult for the transport chain 19 to be wound around the first transport sprocket 14.

According to the invention described in claim 5, in addition to the effect of the invention described in claim 3, when the winding angle of the carrier chain 19 with respect to the second carrier sprocket 16 becomes small or the carrier chain 19 is bent. In such a case, it becomes difficult for the transport chain 19 to fall off the second transport sprocket 16, and the transport chain 19 can be prevented from jumping.

[Brief description of drawings]

1 is a front view showing a closed state of a panel shutter device according to an embodiment of the present invention, and FIG. 2 is a front view of FIG.
X1-X1 line partial enlarged sectional view, FIG. 3 is a X2-X2 line partial enlarged sectional view of FIG. 1, FIG. 4 is a YY line partial enlarged sectional view of FIG. 3, and FIG. 5 is a gear coupling. Is a partially exploded perspective view showing
6 is a partial perspective view showing a chain guide member, FIG. 7 is an enlarged sectional view taken along line X3-X3 of FIG. 1, and FIG. 8 is a partial perspective view showing both upper and lower guide rollers of each panel and a chain connecting member. , Fig. 9 is an enlarged sectional view taken along line X4-X4 in Fig. 1, Fig. 1
Fig. 0 is a partially enlarged sectional view showing a state in which the upper and lower frames of adjacent panels are being fitted together, Fig. 11 (a), (b),
(C) and (d) are operation explanatory views showing a state in which the uppermost panel moves on the guide rails, and FIG. 12 shows a state in which the uppermost panel is stored, which is equivalent to FIG. 2 and FIG. FIG. 4 is a view corresponding to FIG. 2 showing a state in which all the panels are stored. 4 …… Panel lifting guide rails, 5,6 …… Panel storage guide rails, 7,8 …… Connecting parts, 7a, 8a …… Regulating part, 9,
10 …… Guide port, 14,16 …… Transport sprocket, 18 …… Guide sprocket, 19 …… Transport chain, 19a …… Slanted part, 20 …… Electric motor, 30 …… Limit switch, 35,3
6 …… Chain guide member, 37 …… Panel, 44,45 …… Guide rollers, 46 …… Chain connecting member, 48 …… Movable member, 51 …… Connecting part, 52 …… Limit switch.

Claims (5)

(57) [Claims] 1. A panel raising / lowering guide rail (4), a panel storage guide rail (5, 6) connected to an upper end portion of the guide rail (4), and an upper end of the panel raising / lowering guide rail (4). Transport sprocket (14, 16) provided near the section, a transport chain (19) wound around the transport sprocket (14, 16), and a plurality of panels (that are connected to the transport chain (19) at equal intervals ( 37), each panel (37) is moved by the movement of the transport chain (19) with the rotation of the transport sprocket (14, 16) so that each panel (37) moves up and down the panel guide rail (4) and the panel storage guide rail (4). Move along 5 and 6) to each panel (37)
Is installed in parallel in the vertical direction along the panel lifting guide rails (4), and each panel (37) is located at the upper end of the panel lifting guide rails (4) at the panel storage guide rails (5, 6). A panel shutter device arranged so as to be arranged side by side along a guide rail for raising and lowering a panel between the front end and the rear end of the panel storage guide rails (5, 6). The movable member (48), which is positioned rearward of the rearmost panel (37) in the stored state, is tilted downward as it moves backward from the upper end of (4), and this panel storage guide rail (5,
6) A panel shutter device, which is movably supported along the transportation sprocket (14, 16) and has an upper end portion of a transportation chain (19) connected to the movable member (48). . 2. The switch according to claim 1, further comprising a switch (52) for detecting the movable member (48) when the movable member (48) is moved toward the transport sprocket (14, 16). Panel shutter device. 3. The transport sprocket according to claim 1, wherein the transport sprocket is provided between a pair of upper and lower panel guide rails (5, 6), and a transport chain (19) is wound along the panel lifting guide rail (4). The first transfer sprocket (14) for changing direction by means of the first transfer sprocket (14) and the movable member (4) behind the first transfer sprocket (14).
A panel shutter device comprising: a second conveyor sprocket (16) around which a conveyor chain (19) is wound. 4. A chain guide member (35) according to claim 3, wherein a chain guide member (35) is provided between the two carrier sprockets (14, 16) so as to contact the lower side of the carrier chain (19) and restrict the downward movement thereof. Panel shutter device characterized by. 5. The transfer chain (19) according to claim 3, wherein the second transfer sprocket (16) and the movable member (48) located rearward of the transfer sprocket (16) come into contact with both upper and lower sides of the transfer chain (19). A panel shutter device is provided with a chain guide member (36) capable of restricting its vertical movement.