JPH0518469Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the structure of a chain device for self-propelling a movable panel suspended from a main rail disposed on the ceiling.

[Conventional technology]

Conventionally, two storage rails were connected to the ends of a main rail installed on the ceiling to form a storage area, and a large number of suspended movable panels that moved along the main rail were transferred from the main rail to the storage rail. By letting
Insert and store the adjacent movable panels in a substantially parallel manner so that their wide surfaces face each other in the storage section,
Various movable panel devices have been devised that can be sequentially extended from the stored state to the main rail.

For example, Japanese Patent Application Laid-Open No. 55-59288 discloses that a pair of storage rails are connected to a main rail, and one endless conveyance is carried out from one storage rail along both longitudinal directions of the main rail. While the chain is disposed, a chain sprocket with a torque limiter is provided on a suspension support attached to the upper end of each moving panel, and the conveyance chain is moved with this chain sprocket always meshed with the conveyance chain. Therefore, a technique has been disclosed in which each movable panel can reciprocate between the storage rail section and the main rail.

However, in cases where the height from the ceiling to the floor of the room is quite high, such as in gymnasiums and school auditoriums,
The weight of each moving panel is also quite heavy, so in the case where all the moving panels are moved at the same time using one conveyance chain as in the prior art, the conveyance chain must be made larger to withstand this weight. In addition, the motor for driving the conveyance chain also has to be large in size.

[Problem that the invention attempts to solve]

Therefore, while the chain is fixed along the main rail, each movable panel is provided with a rotatable chain sprocket that meshes with the fixed chain, and the chain sprocket is driven by a motor built into each movable panel. The above-mentioned drawbacks can be overcome by allowing each movable panel to move on its own.

However, when the chain is fixed and the movable panel is made to run on its own, the chain is only installed along the main rail, so the movable panel cannot be moved from the storage rail to the main rail. In this case, the chain sprocket must be forcibly engaged with the chain. However, when engaged, the teeth of the chain sprocket may collide with the rollers of the chain, resulting in incomplete engagement between the chain sprocket and the chain, which prevents the moving panel from moving onto the main rail. A new problem arises in that the durability of the chain is reduced due to the shock that is applied when the sprocket collides with the chain.

The purpose of the present invention is to prevent new problems from occurring when the chain is fixed and the movable panel is made self-propelled.

[Means for solving problems]

Therefore, in the present invention, the chain is fixed along one side of the main rail installed on the ceiling so that it cannot move back and forth, and the chain sprocket that engages with the chain is rotated on the movable panel suspended from the main rail. The movable panel is configured so that it can move freely along the main rail as the chain sprocket rotates, and a pair of storage rails are connected to one side of the main rail to move the movable panel. forming a storage section, and configuring the movable panel to be able to move freely between the storage rail and the main rail;
The chain sprocket is connected to and disengaged from the chain as the movable panel moves, and the chain retreats in a direction in which the chain sprocket presses an appropriate section of the chain where the chain sprocket engages and disengages. form a buffer to obtain
The structure is characterized in that the terminal end of the chain in the buffer section is pulled and biased by a spring in the longitudinal direction of the chain.

[Effect]

With this configuration, among the chains that are fixed along one side of the main rail so that they cannot move back and forth, the chain sprocket engages first in the buffer section when the movable panel moves from the storage section to the main rail. This means that the chain portion can expand and contract against the spring force. Therefore, when moving the movable panel from the storage rail to the main rail, even if the teeth of the chain sprocket are opposed to the rollers of the fixed chain, the teeth of the chain sprocket will not be aligned with the rollers of the chain. At the same time as the collision occurs, the chain contracts against the spring force, causing the rollers of the chain to move laterally, and the sprocket reliably meshes with the chain.

〔Example〕

Next, an embodiment of the present invention will be described based on the drawings. In the drawing, 1 indicates a main rail installed on the ceiling via a suspension frame (not shown), and P indicates a main rail suspended from the main rail 1. Each of n movable panels is shown hanging to partition a space, and at one end of the main rail 1 there is a pair of movable panels that are substantially orthogonal to the main rail 1 in plan view and extend in parallel with each other at appropriate intervals. The storage rails 2a and 2b are connected, thereby forming a storage section 2 for storing each of the movable panels P.

The main rail 1 and storage rails 2a and 2b each have a C-shaped cross section with a downward opening.
Left and right vertical plates 3a, 3a', 3b at a, 2b,
The lower ends of the runners 3b' are respectively bent inward, and the upper surfaces of the runner receiving surfaces 4a, 4b, 4a', 4b' are inclined downward toward the center.

On the other hand, each of the movable panels P (subscripts indicate the order in which they are unrolled from the storage section 2) is suspended from the main rail 1 or the storage rails 2a, 2b via suspension supports 5, 5, which will be described later. It's something to stake,
Each of these rails is arranged so that its wide surface is substantially parallel to the longitudinal direction of the main rail 1 and substantially perpendicular to the longitudinal direction of the storage rails 2a and 2b.

The suspension supports 5, 5 have a distance l between the centers of the storage rails 2a, 2b above each movable panel P.
The suspension supports 5,
Reference numeral 5 denotes a suspension shaft 6 projecting upward from the upper surface of the movable panel P, a roller receiving plate 7 which is substantially square in plan view and rotatably fitted onto the suspension shaft 6, and four corners of the lower surface of the roller receiving plate 7. It consists of four horizontal rotary rollers 8a, 8b, 8c, and 8d with thrust bearings arranged at equal positions from the center of the hanging shaft 6. Each rotating roller 8a, 8 of each of these hanging supports 5
b, 8c, 8d as main rail 1 or storage rail 2
Each runner receiving surface 4a', 4b', 4a' of a, 2b,
By running on 4b', the moving panel P
is movable along the main rail 1 and can be moved between the main rail and the storage rails 2a, 2b. In this case, when the movable panel P is suspended from the main rail 1, of the four rotating rollers 8a, 8b, 8c, and 8d, 8a and 8d are on one runner receiving surface 4a, and 8b and 8c are on the other. The movable panel P is moved along the main rail 1 by contacting the runner receiving surfaces 4b. On the other hand, when the two suspension supports 5, 5 move from the main rail 1 to the storage rails 2a, 2b, the four rotating rollers 8
Among a, 8b, 8c, and 8d, 8a and 8b are one runner receiving surface 4 of both storage rails 2a and 2b.
b', 8c and 8d are in contact with the other runner receiving surface 4a', so that the movable panel P moves along the longitudinal direction of the storage rails 2a and 2b with its wide side parallel to the main rail 1. be moved.

Further, on the upper surface of each roller receiving plate 7, 7 in each suspension support 5, a protrusion 10 that engages and disengages from the storage section conveyance device 9, which will be described in detail later, is provided. A child 10a may also be provided.

The storage unit transport device 9 is for feeding out the movable panel P stored in the storage unit 2 onto the main rail 1, or pulling the movable panel P transferred to the end of the main rail 1 into the storage unit 2. The storage unit conveyance device 9 includes a pair of endless chains 11, 11 disposed along the upper surfaces of both storage rails 2a, 2b.
It consists of sprocket wheels 12, 12, 13, 13 that wrap around and support this, and a drive motor M1 that can rotate forward and backward. That is, at each intersection of the storage rails 2a, 2b and the main rail 1, the brackets are provided on the outside of the openings 14, 14 bored in the vertical plate 3a on the opposite side of the connecting portion with the storage rails 2a, 2b. Drive shaft 1 rotatably supported by
5, sprocket wheels 13, 13 are fixed to the free ends of both storage rails 2a, 2b, and sprocket wheels 12, 12 are also fixed to the rotatable long shafts 16 in the upper surface notches near the free ends of both storage rails 2a, 2b. Endless chains 11, 11 are wound between both sprocket wheels 12, 13, and are arranged such that their lower sides are located on the lower surface of the top plate 18 on the storage rails 2a, 2b, and their upper sides are located on the top surface of the top plate 18,
Further, the drive shaft 15 is configured to be rotatable in forward and reverse directions by a drive motor M1 via a chain.

And both the endless chains 11, 11
A pair of front and rear clamping bodies 19, 19 are provided on the outer peripheral surface of the
The movable panels P are attached at an appropriate pitch t3 corresponding to the sum of the thickness t1 of the movable panels P and a predetermined gap t2 between adjacent movable panels P in the stored state. The protrusions 10, 10 on the upper surface of each hanging support 5 are held between the holding bodies 19, 19 from above, and in this state, the endless chains 11, 11 are driven to move the movable panel P to the storage rail 2a. , 2b.

Reference numeral 20 denotes an electric control device for automatically extending the moving panels P1, P2, . . . to the main rail 1 and pulling them into the storage section 2 from the main rail 1. is the drive motor M
A main switch (not shown) for forward and reverse rotation of the moving panel P is provided, as well as limit switches L1 and L2 that operate when each movable panel P is moved in the feeding direction, and a limit switch L3 that operates when each movable panel P is pulled in. , L4 are connected to each other, so that the movable panel P can be extended and retracted intermittently.

That is, each limit switch L1, L2, L
3 and L4, L1 is provided on the inner surface of one vertical plate 3a of the main rail 1, and the movable panel P drawn out from the storage section 2 by the storage section conveyance device 9 moves from both storage rails 2a and 2b to the main rail. L2 functions to sense this and stop the storage section conveyance device 9 when the storage section transfer device 9 transfers to L2.
The movable panel P is provided in the main rail 1 separated from the storage part 2 as appropriate, and the movable panel P paid out from the storage part 2 to the main rail 1 moves along the main rail 1 in the direction away from the storage part 2, and the rear end When one of the storage rails 2a is left, this is sensed and the storage section conveyance device 9 is driven again.

Further, L3 is provided in the main rail 1 near the second storage rail 2b, and L4 is provided near the main rail 1 on either one of the storage rails 2a, 2b. When the movable panel P that has been moved to is located at a position corresponding to the storage section 2, it is sensed and the storage section conveyance device 9 is driven to pull the movable panel P into the storage section 2. is storage part 2
When the object enters a certain distance, L4 senses this and stops the drive of the storage section conveying device 9.

Reference numeral 31 denotes a drive device attached to each movable panel P in order to make each movable panel P self-propelled. Running motor M2
, a chain sprocket 34 disposed above the movable panel P via a drive shaft 33, a transmission mechanism 32 for transmitting the power of the self-propelled motor M2 to the drive shaft 33, and a chain sprocket disposed along the main rail 1. The current collector 35 is provided at the upper end of the movable panel P to receive power from the provided trolley wires 26, 26, 26. That is, by meshing the chain sprocket 34 with the fixed chain 22 disposed along the main rail 1 and rotating the chain sprocket 34 with the self-propelled motor M2, the movable panel P is moved along the main rail. 1, it runs on its own. In this case, each chain sprocket 34 is provided with a torque limiter 44 so that it will idle if a load above a certain level is applied.

Note that when arranging each of the trolley wires 26, the skirt portion 2, which can be bent and deformed in the vertical direction, is used.
Each of the trolley wires 26 is held between electrically insulating material separators 28 having horizontally U-shaped cross sections and provided with 7 and 27, and each separator 28 is inserted into a groove of an electrically insulating material wiring holder 29. ,
Each of these wiring holders 29 is arranged in a multi-tiered parallel configuration and is fixed to the inner surface of a support member 30 that projects downward from the side surface 3a of the main rail 1.

The current collector 35 also includes an arm 36 pivotably attached to the upper surface of the movable panel P so as to be horizontally rotatable, and a current collector 37 that can contact the contact wires 26, 26, 26.
37, 37, and the arm 36 is horizontally rotatable by having its base pivoted on a support 40 protruding from the top surface of the movable panel P. electron 37, 37, 3
A bracket 38 on which a bracket 7 is attached is supported via a shaft 39 so as to be vertically movable and horizontally rotatable, and a spring 42 is further mounted between a regulating piece 41 fixed to a support column 40 and the base of the arm 36. Preferably, each current collector 37, 37, 37 is connected to the contact wire 26, 26,
It is biased in the direction of contact with 26.

Further, reference numeral 45 in FIG. 6 indicates the current collector 35.
When the tip of the arm 36 approaches the contact wire 26, the guide member is made of synthetic resin and guides the tip of the arm 36 upward to guide each current collector 37 into the upper and lower separators 28 of each contact wire 26.

The fixed chain 22 is disposed along substantially the entire length of the main rail 1;
2, among both the runner receiving pieces 4a, 4b of the main rail 1, the storage rail 2a,
A cross section approximately L extending along approximately the entire length of the main rail 1 is provided on the lower surface of the runner receiving piece 4a located on the opposite side to the runner receiving piece 2b.
A letter-shaped chain support 21 is fixed, and the chain 22 is inserted into the opening of this support 21 and its roller 2 is fixed.
The axis of 2b is vertical and the back side is supported by the vertical piece 21a of the support 21, and
The chain 22 is fixed to the horizontal piece 21b of the support body 21 with screws 23 at appropriate intervals.

In this case, when the end of the chain 22 closer to the storage section 2, that is, the movable panel P is paid out from the storage section 2 or pulled into the storage section 2, each movable panel P
The chain 22 is moved over an appropriate section near the area where the chain sprocket 34 engages or disengages.
is formed in a buffer portion 22a that can retreat in the direction in which the chain sprocket 34 is pressed. Then, the bolt 24 fixed to the terminal end of the chain 22 in the buffer section 22a is inserted through the bracket 25 fixed to the lower surface of the runner support piece 4a, and the compression spring 46 is inserted between the nut 47 with washer and the bracket 25. By doing so, the end portion of the chain 22 is constantly pulled and biased in its longitudinal direction. Therefore, the free end 22a will expand and contract against the force of the spring 46.

Furthermore, the terminal end of this chain 22 and the screw 23
Support body 2 in the buffer section 22a between the stop point
The vertical piece 21a' of 1 is positioned rearward by an appropriate dimension from other parts to form a space 48, and the chain 22
Although the vicinity of the end portion is designed to be able to bend backward, a cushioning material such as rubber may be stored in the space 48 between the vertical piece 21a' in the cushioning portion 22a of the chain 22.

Note that the reference numeral 43 in FIG. 7 indicates the collector 37,
Power supply from 37, 37 to self-propelled motor M2
This is a control device built into each movable panel P to turn it on and off and to instruct forward and reverse rotation. When the main switch S for operating the control device 43 is turned on in advance, the drive motor M1 rotates at the same time as each collector 37 is energized. Therefore, the sprocket 34 is fed out from the storage section 2 onto the main rail 1 and meshes with the chain 22, and
When each collector 37 also comes into contact with each trolley wire 26, the self-propelled motor M2 rotates, the chain sprocket 34 is driven, and the movable panel P is self-propelled along the main rail 1. In addition, each movable panel P is provided with a limit switch L5, and each movable panel P
When approaching the end of the main rail 1 where the storage section 2 is located, the limit switch L is
5 is activated, the power to the self-propelled motor M2 is cut off, and the self-propelled motor M2 is stopped at a predetermined position.

Next, the operation of the movable panel device configured as above will be described.

The movable panels P1, P2... suspended from the pair of storage rails 2a, 2b have protrusions 10, 10 protruding from each suspension support 5, 5 at the upper end thereof, which are connected to endless chains 11, 11 at regular intervals. Therefore, when the main switch of the control device 20 in the storage and conveyance device 9 is turned on in the forward rotation direction to rotate the drive motor M1 in the forward direction, the endless movement on the storage rails 2a and 2b Chains 11, 11 rotate in the direction of arrow A, and each movable panel P1, P2, . . . as a whole rotates on main rail 1.
Migrate towards.

Then, the first moving panel P1 is the storage rail 2
When moving from a or 2b to the main rail 1, the limit switch L1 is activated to stop the drive motor M1, while the chain sprocket 34 is moved to the buffer section 22.
a, and at the same time each current collector 37 contacts each trolley wire 26 to energize the self-propelled motor M2, and the protrusion 10 engages the clamping body 19.
The moving panel P1 moves away from the storage section 2 along the main rail 1 (direction B). Chain sprocket 3 of this moving panel P
4 meshes with the chain 22, the teeth of the chain sprocket 34 engage the roller 22 of the chain 22.
In this case, if all the chains 22 are fixed, the teeth of the sprocket 34 may move against the rollers 22 of the chain 22.
There is a risk that the movement of the movable panel P will be hindered and the movable panel P will stagnate at the intersection between the main rail 1 and the storage section 2. Teeth are roller 22
Even when the chain 22 is moved in the state facing the sprocket 34, the chain 22 can be compressed in the buffer section 22a against the force of the spring 46, so the roller 22b moves laterally as the sprocket 34 comes into contact with the roller 22b. The chain sprocket 34 meshes with the chain 22 reliably.

When the movable panel P1 moves by more than its width and completely escapes from the intersection with the storage section 2, the limit switch L2 senses this and drives the drive motor M1.
forward, and move the next moving panel P2 to the main rail 1.
The main rail 1 is moved in the direction of arrow B by the same action as described above. By repeating this cycle, the movable panels P1, P2, . . . are sequentially moved to the main rail 1.

In addition, the width of the final panel Pn is configured to be expandable by providing an extension part that expands and contracts by an appropriate dimension along the direction of the main rail 1 at the front end or rear end of the final moving panel Pn, and each moving panel P1, P2,
. . . are connected along the main rail to form a partition, the side end surface of the final panel Pn may be brought into close contact with the chamber wall surface below the end of the main rail 1.

The movable panel suspended from the main rail 1 is stored in the storage section 2.
When storing the panel P in the storage section 2, it is the opposite of the above, the main switch of the control device 20 in the storage and conveyance device 9 is turned on in the reverse direction, and the movable panel P is moved toward the storage section 2 (in the direction of arrow C). Keep it.

Then, the moving panel P moved in the C direction.
When the front end of the movable panel P approaches the end of the main rail 1, as the movable panel P moves, the protrusions 10 protruding from the suspension supports 5, 5 fit into the front and rear gaps of the clamping bodies 19, 19, and At the same time, a limit switch L5 provided on the movable panel P is activated to stop the rotation of the self-propelled motor M2, and also comes into contact with a stopper (not shown) to stop the movable panel P at a position where it can be drawn into the storage section 2. In this case, even if the movable panel P stops at the stopper, inertial rotation and limit switch L
Self-propelled motor M2 may continue to rotate slightly due to the time lag with chain 2.
However, in the buffer section 22a, the chain 22 is supported by the spring 46.
It can absorb the load by contracting against the force.

When it is stopped at a predetermined position in this way, the limit switch L3 senses this and reversely rotates the drive motor M1 of the storage section conveying device 9.
At this point, both hanging supports 5, 5 are moved to storage rails 2a, 2b. When the vehicle travels a certain distance in the direction of arrow D, limit switch L4 is activated to stop drive motor M1. Then, the next clamping body 19 is positioned on the main rail 1, and the next movable panel P, which has been self-propelled, is pulled into the storage rails 2a and 2b by the same action as described above.

Note that in the embodiment, the feeding from the storage section to the main rail and the retraction from the main rail 1 to the storage section 2 are performed automatically, but it is of course possible to perform manual operations.

[Effect of idea]

In this way, in the present invention, the part of the chain disposed on the main rail 1 where the sprocket engages and disengages is configured to be expandable and retractable, so that the teeth of the chain sprocket are moved in a state facing the rollers of the chain. Even if the movable panel is stuck at the intersection of the main rail and the storage rail, the sprocket can be reliably engaged with the chain to allow the movable panel to move by itself. The partitioning work using the movable panels can be done smoothly and reliably.

Moreover, the spring can absorb the shock when the chain sprocket engages and the sudden load caused by the self-propelled motor continuing to rotate after the movable panel stops at the end of the main rail. It also has the effect of improving the durability of the chain.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan sectional view of the intersection of the main rail and storage rail, and FIG. Fig. 3 is a plan view of Fig. 2, Fig. 4 is a sectional view taken along the - line of Fig. 1, and Fig. 5 is a - of Fig. 4.
6 is an enlarged sectional view taken along the - line in FIG. 4, FIG. 7 is a circuit diagram of the control device for the moving panel, FIG. 8
FIG. 10 is a side view of FIG. 9 when viewed from above. 1...Main rail, 2...Storage section, 2a, 2b...
...Storage rail, P...Moving panel, 21...Chain support, 22...Fixed chain, 22a...
Buffer part, 46... Spring, 25... Bracket,
5, 5... Hanging support, 9... Storage section conveyance device, 11
... Endless chain, M1 ... Drive motor,
26... Contact wire, 34... Chain sprocket, 35... Current collector, 37... Current collector, M2...
...Self-propelled motor.

Claims (1)

[Scope of utility model registration request] A chain is fixed along one side of a main rail arranged on the ceiling so that it cannot move back and forth, and a chain sprocket that engages with the chain is rotatably provided on a movable panel suspended from the main rail. The movable panel is configured to be able to move on its own along the main rail as the sprocket rotates, and a pair of storage rails are connected to one side of the main rail to form a movable panel storage section; The movable panel is configured to be able to move freely between the storage rail and the main rail, and the chain sprocket is connected to and disengaged from the chain as the movable panel moves, and the chain sprocket is connected to and disengaged from the chain. A suitable section of the chain to be removed is formed into a buffer section that allows the chain to retreat in the direction in which the chain sprocket is pressed, and the terminal end of the chain in the buffer section is tensioned with a spring in the longitudinal direction of the chain. A chain device for a self-propelled movable panel characterized by the following: