JP3558366B2 - Installation and removal equipment for rugs such as artificial turf - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to an improvement in an installation and removal device for a rug such as an artificial turf installed on a floor surface of a stadium, a gymnasium, or the like.
[0002]
[Prior art]
In indoor stadiums, gymnasiums, multipurpose halls, etc., it is required to install or remove rugs such as artificial turf or carpets according to the content of the competition or event, and the installation or removal of this rug such as artificial turf should be done promptly. By doing so, the operating rate of a multipurpose hall or the like can be improved. The rugs such as artificial turf are formed in a belt shape with a width of several meters.They should be rolled up with artificial turf beforehand, be loaded with a forklift, etc. to the installation start position in the hall, and be deployed manually. For the removal work, the work is similarly wound up into a roll by hand or the like and then carried out of the hall by a forklift or the like.
[0003]
[Problems to be solved by the invention]
However, in the above conventional example, as the number of artificial turf increases, a great deal of labor and time are required for installation or removal work, which not only increases labor costs but also lowers the operating rate of the floor surface. was there.
[0004]
Accordingly, an object of the present invention is to provide a device for installing and removing a rug such as an artificial turf, which can efficiently install or remove a rug such as an artificial turf, and can promote labor saving.
[0005]
[Means for Solving the Problems]
A first aspect of the present invention is a winding capable rug into a roll wound up this rug, a drum for feeding a carriage for rotatably supporting the drum, core drive for rotating the drum is disposed carriage Means, bogie driving means for driving the bogie in the front-rear direction, guide means for restricting displacement of the bogie in the width direction, an air bearing for levitating the bogie, and supplying pressurized air to the air bearing. Means , wherein the core material driving means comprises a pair of rollers supported by a carriage, a belt connecting these rollers and supporting the drum, and a shaft of the rollers according to a winding outer diameter of the rug. It comprises means for changing the distance and means for driving at least one of the rollers .
[0006]
In a second aspect based on the first aspect, the bogie driving means comprises: a plurality of winches provided on the floor; a plurality of wires respectively connecting the winches and the bogie; Straight-line control means for controlling the winch so as to wind a plurality of wires synchronously.
[0007]
In a third aspect based on the second aspect, the straight traveling control means synchronously drives a plurality of winches in accordance with the winding amounts of the respective wires.
[0008]
In a fourth aspect based on the second aspect, the straight-ahead control means drives the plurality of winches synchronously in accordance with the tension of each wire.
[0010]
[Action]
Therefore, in the first invention, the bogie that rotatably supports the rug that can be wound around the drum is driven while being floated from the floor by the air bearing, so that the load is not concentrated on the floor and the floor is not concentrated. Heavy rugs can be installed and removed while preventing surface damage.
The drum for winding the rug is rotatably supported by a belt connecting a pair of rollers. The roller can reduce the fluctuation of surface pressure applied to the belt by changing the center distance according to the take-up outer diameter of the rug. Can be.
[0011]
According to the second invention, the bogie and the plurality of winches are connected to each other through the plurality of wires, and the plurality of winches wind up the wires synchronously. can do.
[0012]
In the third invention, the winch is synchronized according to the winding amount of each wire, so that the bogie can move straight without meandering.
[0013]
In the fourth invention, since the winches are synchronized in accordance with the tension of each wire, the bogie can be moved straight without meandering, and the rug can be accurately installed.
[0015]
【Example】
1 to 5 show an embodiment of the present invention.
[0016]
1 and 2, a cart 1 on which an artificial turf 2 as a rug that can be wound up in a roll shape is formed to have a vehicle width corresponding to the entire width of the artificial turf 2, and the cart 1 has a frame provided with an air bearing 4. 3A, 3B, and 3C are integrally formed by connecting the connecting pipes 30 and 30 in the width direction (in FIG. 2, the penetrating direction of the paper surface).
[0017]
The frames 3A to 3C have the same configuration, and the frame 3A will be described below.
[0018]
As shown in FIG. 3, four air bearings 4 are disposed at predetermined positions on the lower surface of the plate-shaped frame 3A, and pressurized air supplied from pressurized air supply means (not shown) is supplied to the connector. 42, an air tank 41, and a variable throttle 40 respectively.
[0019]
As shown in FIGS. 4 and 5, the air bearing 4 is formed of a bag-like member that is capable of expanding and contracting while the center portion 4A is fixed to the lower surface of the frame 3A while the peripheral portion 4B is directed toward the floor surface 6. An injection hole 4C for injecting the pressurized air supplied to the air bearing 4 toward the floor 6 is formed between the center portion 4A and the peripheral edge portion 4B.
[0020]
The air bearing 4 inflates the peripheral portion 4B with the pressurized air and raises the pressure inside the central portion 4A with the pressurized air injected from the injection hole 4C to lift the carriage 1 from the floor surface 6. In addition, the floating height of each air bearing 4 from the floor 6 is adjusted according to the load distribution of the frame 3A by the variable throttles 40 interposed in the air bearing 4, respectively, and the bogie 1 is levitated almost horizontally. Can be.
[0021]
A skirt 50 protrudes from the lower surface of the frame 3A toward the floor 6 so as to cover the outer periphery of the air bearing 4. When the air bearing 4 is not supplied with pressurized air, the end of the skirt 50 is closed. And supports the carriage 1 while suppressing excessive displacement of the peripheral portion 4B in the horizontal direction when the air bearing 4 is driven.
[0022]
In this manner, the truck 1 in which the frames 3A to 3C provided with the air bearings 4 are connected by the connecting pipe 30 has the hooks 33, 33 at the front end portions of the frames 3A, 3C and the hooks 34, 34 in FIGS. 3A and 3C, fixed at predetermined intervals wider than the entire width of the artificial turf 2 at the rear ends thereof, and winches 9 and 9 as bogie driving means are arranged on the floor 6 side facing the hooks 33 and 33, respectively. Is established.
[0023]
The winches 9, 9 are connected to both ends in the width direction of the carriage 1, that is, the hooks 33 or 34 of the frames 3A, 3C via wires 20, 20, which are formed in a closed loop, and the carriage 1 is connected to the winches 9, 9. To be driven forward or backward.
[0024]
The wire 20, one end of which is connected to the hook 33, is wound around the winch 9 as shown in FIG. 2 and then inserted into the floor 6 via a pulley 23 fixed to the floor 6, and After standing up from the floor surface 6 via the pulley 23 from a predetermined rear side, the bogie 1 is connected to the hook 34 via the wire 20, the hook 33 or the hook 34 by the forward or reverse rotation of the winch 9, so that the bogie 1 moves forward or backward. When it is pulled, it performs a reciprocating linear motion.
[0025]
The winches 9 and 9 are housed on a peripheral edge or a wall surface (not shown) of the floor surface 6, and a pulley 23 behind the bogie 1 is similarly disposed on the peripheral edge or the wall surface of the floor surface 6. Reciprocates in a predetermined section such as from the peripheral edge to the peripheral edge or from the wall surface to the wall surface.
[0026]
Since both ends in the width direction of the cart 1 are pulled by the wires 20, it is necessary to secure the straightness by driving the winches 9, 9 synchronously. For this reason, a tension meter 21 for detecting the tension of the wire 20 and an encoder 22 for detecting the displacement of the wire 20 are provided above the pulley 23 disposed on the rear side of the bogie 1 in FIG. 20.
[0027]
The outputs of the tension meter 21 and the encoder 22 are input to the controller 5, and the controller 5 drives the winches 9, 9 so that the tension and the displacement (winding amount) of each wire 20 are equal.
[0028]
Further, on the lower surface of the frame 3A, a swing arm 15 whose base end is pivotally supported by a pin 15 is disposed on the lower surface of the frame 3A so as to swing freely toward the floor surface 6 in order to restrict the displacement of the carriage 1 in the width direction. A guide roller 19 is rotatably supported in the middle of the swing arm 15 as guide means so as to be rotatable in the traveling direction of the carriage 1.
[0029]
Then, a spring 16 interposed between the free end of the swing arm 15 and the lower surface of the frame 3A urges the guide roller 19 toward the floor 6, and the friction between the guide roller 19 and the floor 6 causes the air bearing 4 to move. The trolley 1 levitated in the step is suppressed from being displaced in the width direction.
[0030]
On the other hand, on the upper surfaces of the frames 3A to 3C, a drum 7 as a core material for winding and feeding the artificial turf 2 is supported by a belt 8, a driving roller 10, and a driven roller 11 as a core driving means.
[0031]
The driving roller 10 and the driven roller 11 are pivotally supported at a predetermined direction parallel to the traveling direction of the carriage 1, that is, at a predetermined interval parallel to the artificial turf 2. The driving roller 10 and the driven roller 11 are connected by an endless belt 8. The drive roller 10 is rotated by the motor 18 controlled by the control unit 5, and the driven roller 11 is driven by the drive roller 10 via the belt 8.
[0032]
On the upper surface of the belt 8 between the driving roller 10 and the driven roller 11, a drum 7 for winding or feeding out the artificial turf 2 is supported.
[0033]
The drive roller 10 and the driven roller 11 are supported so as to be displaceable in the front-rear direction of the carriage 1 in the figure, and an adjusting cylinder 12 as an inter-axis distance changing means is interposed between the shafts of the drive roller 10 and the driven roller 11. The adjusting cylinder 12 expands and contracts according to the diameter of the artificial turf 2 wound by the drum 7 and suppresses fluctuations in the surface pressure applied to the belt 8. The adjusting cylinder 12 is driven based on a command from the controller 5. You.
[0034]
A tension adjusting cylinder 17 is fixed upward to the frame 3A between the driving roller 10 and the driven roller 11, and a roller 13 supported at the upper end of the tension adjusting cylinder 17 presses the lower surface of the belt 8 to drive. By adjusting the slack of the belt 8 due to the change in the distance between the shafts of the roller 10 and the driven roller 11, the drum 7 is controlled so as not to fall off from the center between the driving roller 10 and the driven roller 11.
[0035]
The configuration is as described above. Next, the operation will be described.
[0036]
In order to install the artificial turf 2 on the floor 6, the artificial turf 2 wound in a roll with the drum 7 as a core is placed on the belt 8 of the cart 1, and compressed air (not shown) is supplied to the air bearing 4. Supply pressurized air from the means.
[0037]
As shown in FIG. 5, the air bearings 4 provided on the frames 3A to 3C of the carriage 1 each pressurize the fuel from the injection holes 4C while expanding the peripheral edge 4B toward the floor surface 6 as shown in FIG. The bogie 1 is levitated by increasing the internal pressure facing the central portion 4A by air.
[0038]
After the cart 1 floats, the controller 5 drives the winches 9 and 9 synchronously to wind up the hooks 33 and the wires 20 and 20 on the 33 side, thereby causing the cart 1 to move straight forward and to operate the motor 18. By driving the winch 9 in accordance with the winding speed, the artificial turf 2 in the form of a roll supported by the belt 8 is fed to the floor 6.
[0039]
The floated trolley 1 can be driven with a relatively small force because it is not affected by the friction of the floor 6. For example, even when the gross weight of the trolley 1 is 55 ton, the driving force (tensile force) is less than about 300 kg. Therefore, it is possible to start even with the small and lightweight winch 9 and only pressurized air is sprayed on the floor surface 6 so that no load is applied by wheels or the like and the floor surface 6 is prevented from being damaged. Can be.
[0040]
The winches 9, 9 are driven so that the tensions and winding amounts of the wires 20, 20, which are connected to the frames 3A, 3C, are equal, and the width of the bogie 1 is increased by a restraining wheel 19 which is urged against the floor surface 6 and rotates. Since the displacement in the direction is regulated, the carriage 1 moves straight without meandering.
[0041]
On the other hand, the artificial grass 2 2, by the motor 18 fed to the floor 6 while rotating clockwise, the artificial turf 2 at the start deployment outer diameter of the drive roller 10 and the driven roller 11 for the maximum The adjusting cylinder 12 extends so that the distance between the axes becomes maximum.
[0042]
When the bogie 1 advances, the artificial turf 2 is extended and the artificial turf 2 is installed between the wires 20 and 20. When the outer diameter of the artificial turf 2 is reduced in accordance with the extension, the artificial turf 2 applied to the belt 8 is reduced. The controller 5 causes the adjusting cylinder 12 to contract and drive so that the surface pressure (load per unit area) becomes smaller.
[0043]
As shown in FIG. 2, the adjustment cylinder 12 reduces the distance between the shafts by displacing the driving roller 10 and the driven roller 11 toward 10 ′ and 11 ′, respectively, and reduces the fluctuation of the surface pressure of the belt 8. The motor 18 can smoothly drive the belt 8 and the drum 7, suppress the fluctuation of the rotation of the drum 7, and uniformly feed or wind the artificial turf 2, and further drive the artificial turf 2 with the belt 8. By supporting, the roll-shaped artificial turf 2 which does not always become a perfect circle can be smoothly rotated.
[0044]
The cart 1 moves straight by a winch 9 driven synchronously and a restraining wheel 19 that regulates displacement in the width direction, and the artificial turf 2 is linearly installed on the floor 6 between the wires 20.
[0045]
When the bogie 1 advances to a predetermined position where the feeding of the artificial turf 2 ends, the controller 5 stops the motor 18 and ends the driving of the belt 8, and the winch 9 advances or reverses the bogie 1 to a predetermined storage position. At the same time, when pressurized air is shut off at this storage position, the air bearing 4 contracts and the carriage 1 is placed on the floor 6 via the skirt 50. In this manner, the rug such as the artificial turf 2 can be quickly and easily installed on the floor 6 such as a gymnasium or a stadium with little need for human intervention. Is removed and stored together with the trolley 1, so that a smooth floor surface 6 can be provided.
[0046]
On the other hand, in order to remove the artificial turf 2 from the floor surface 6, the operation reverse to the above-mentioned installation may be performed. First, the removed wire 20 is connected to the hook 33 or 34, and then the air bearing 4 is driven to drive the bogie. Float 1
[0047]
Next, the winch 9 is driven to move the carriage 1 to a predetermined winding start position, and one end of the artificial turf 2 is wound around the drum 7, and then the winch 9 and the motor 18 are driven in the same manner as at the time of installation.
[0048]
The motor 18 rotates clockwise in FIG. 2 to advance straight back while winding the artificial turf 2 on the drum 7. After the bogie 1 reaches the predetermined winding end position, the motor 18 rotates in a predetermined If the air bearing 4 is stopped after moving to the storage position and one end of the wire 20 in a closed loop is removed, the floor surface 6 can be smoothed again.
[0049]
Thus, the winches 9, 9 are driven while maintaining the tension and the winding amount of the wires 20, 20, almost uniformly, and the bogie 1 is moved straight by the restraining wheel 19, which suppresses displacement in the width direction, while the artificial turf is moved straight. 2 can be installed in a straight line, and the rugs such as the artificial turf 2 can be quickly installed and removed while saving labor and automation, thereby improving the operation rate of the floor surface 6. The bogie 1 is levitated so that the heavy artificial turf 2 can be driven with less power, and the winch 9 is downsized to promote the miniaturization of the device and damage the floor 6. Nothing.
[0050]
FIG. 6 shows another embodiment. In the first embodiment, the restraining ring 19 as the guide means is provided with a guide groove 60 formed on the floor 6 and the guide grooves 60 projecting from the lower surfaces of the frames 3A to 3C. It is replaced with a lateral flow prevention plate 35 to be engaged, and the other configuration is the same as that of the first embodiment.
[0051]
The guide groove 60 is formed at a predetermined depth along the traveling direction of the carriage 1, and the lateral flow prevention plate 35 of a plate-like member projecting from the lower surface of the frame 3 </ b> A toward the floor surface 6 is engaged with the guide groove 60. In this case, the displacement of the carriage 1 in the width direction is regulated, and the displacement in the width direction can be regulated more reliably than the restraining wheel 19 in the first embodiment.
[0052]
The floor surface 6 is covered with a flexible floor material 6A. The floor material 6A is divided at the opening position of the guide groove 60, and the floor along the guide groove 60 and the back surface of the floor material 6A at the division position. A magnet plate 61 is fixed to the surface 6.
[0053]
The lateral flow prevention plate 35 advances while peeling off the floor materials 6A, 6A adsorbed on the floor surface 6 by the magnet plate 61 with the driving of the carriage 1, and the floor material 6A passed by the lateral flow prevention plate 35 is again floored by the magnet plate 61. The opening of the guide groove 60 can be closed to adsorb to the surface 6 to provide a smooth floor surface.
[0054]
In the above embodiment, the case where the carriage 1 is constituted by the frames 3A to 3C is shown, but the entire width of the carriage 1 can be changed according to the entire width of the artificial turf 2, and a frame (not shown) is connected to the connecting pipe 30. The entire width can be increased by coupling through the intermediary, or the entire width can be reduced by removing the frame 3B, so that the entire width of the cart 1 can be appropriately set according to the artificial turf 2.
[0055]
【The invention's effect】
As described above, the first invention provides a rug that can be wound into a roll, a drum that winds and unwinds the rug, a truck that rotatably supports the drum, and a drum that is disposed on the truck and rotates the drum . Core driving means for driving, a bogie driving means for driving the bogie in the front-rear direction, guide means for regulating displacement of the bogie in the width direction, an air bearing for levitating the bogie, and pressurizing the air bearing. The trolley, which is equipped with a means for supplying air and rotatably supports a rug that can be wound on a drum , is driven while floating from the floor by an air bearing, so that the load does not concentrate on the floor. A heavy rug can be efficiently installed and removed while preventing damage to the floor, and the floor operation rate can be improved while promoting labor saving and automation.
Further, the core driving means changes a distance between the rollers in accordance with a pair of rollers supported by a cart, a belt connecting the rollers and supporting a drum, and a winding outer diameter of the rug. And a means for driving at least one of the rollers, wherein the pair of rollers changes the center distance according to the winding outer diameter of the rug, thereby reducing the fluctuation of the surface pressure applied to the belt. The rotation fluctuation of the rug is reduced, and the rug can be uniformly fed or wound, and the rug can be installed and removed efficiently.
[0056]
Further, in the second invention, the bogie driving means synchronously connects the plurality of winches provided on the floor surface, the plurality of wires respectively connecting the winches to the bogie, and the plurality of wires. It is composed of straight-line control means for controlling the winch so as to be wound up.Since the wire can be wound up synchronously by a plurality of winches, it is possible to suppress meandering of the bogie, and to install and remove the rug. It can be performed efficiently.
[0057]
Further, in the third invention, since the straight-ahead control means drives a plurality of winches synchronously according to the winding amount of each wire, the straightness of the bogie is ensured and the installation and removal of the rug is efficiently performed. Can do well.
[0058]
Further, in the fourth invention, since the straight traveling control means synchronously drives a plurality of winches in accordance with the tension of each wire, the straightness of the bogie is ensured, and the work of installing and removing the rug is efficiently performed. be able to.
[Brief description of the drawings]
FIG. 1 is a perspective view of a truck showing an embodiment of the present invention.
FIG. 2 is a sectional view taken along the line AA of FIG. 1;
FIG. 3 is a block diagram of an air bearing.
FIG. 4 is a schematic diagram showing the air bearing in a stopped state.
FIG. 5 is a schematic view showing the air bearing in an operating state.
FIG. 6 is a cross-sectional view of a lateral flow prevention plate showing another embodiment.
[Explanation of symbols]
Reference Signs List 1 cart 2 artificial grass 4 air bearing 5 controller 6 floor surface 7 drum 8 belt 9 winch 10 drive roller 11 driven roller 12 adjustment cylinder 18 motor 19 restraint wheel 20 wire 21 tension meter 22 encoder 35 lateral flow prevention plate 60 guide groove

Claims (4)

A rug that can be wound into a roll,
A drum that winds and unrolls this rug,
A cart that rotatably supports the drum ,
Core driving means disposed on a truck to rotate the drum ;
Truck driving means for driving the truck in the front-rear direction,
Guide means for restricting displacement of the carriage in the width direction,
An air bearing that floats the bogie,
Means for supplying pressurized air to the air bearing ,
The core driving means changes a shaft distance between the rollers in accordance with a pair of rollers supported by a carriage, a belt connecting the rollers and supporting the drum, and a winding outer diameter of the rug. And a device for driving at least one of the rollers . The bogie driving means controls a plurality of winches provided on the floor side, a plurality of wires connecting the winches and the bogie respectively, and the winch so as to wind the plurality of wires synchronously. The installation / removal device for rugs such as artificial turf according to claim 1, comprising a straight traveling control means that performs the straight traveling control. 3. The installation / removal device for rugs such as artificial turf according to claim 2, wherein the straight-ahead control means synchronously drives a plurality of winches in accordance with the winding amounts of the respective wires. The installation / removal device for rugs such as artificial turf according to claim 2, wherein the straight traveling control means drives a plurality of winches synchronously in accordance with the tension of each wire.

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