JPH10279138A - Winding device for artificial lawn - Google Patents

Abstract

PROBLEM TO BE SOLVED: To wind and lay artificial lawn securely by providing a drive means which drives a winding shaft when an artificial lawn winding device is stored and operated and drives a receive roller when it lays the artificial lawn and is operated. SOLUTION: By driving motors 10a, 10b, rotating a receive roller, and driving a winch 13 to wind out a rope, artificial lawn 3 is sent out of a winding shaft 7 and is laid on a floor surface. After all the artificial lawns 3 are laid on the floor surface, the rope is removed from a hook at a tip of the artificial lawn 3, and the rope only is wound around the winch 13. When the artificial lawns 3 are wound out, a plurality of air blow devices 17 provided on both sides of the artificial lawn 3 are operated to float the artificial lawn 3 from the floor surface 2. Next, a motor 70 is driven, and the winding shaft 7 is rotated to wind the artificial lawn 3 on a peripheral face of the winding shaft 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for winding artificial turf laid on the floor of an indoor sports facility.

[0002]

2. Description of the Related Art Athletics stadiums, such as a baseball stadium, on which artificial turf is laid are increasing, but this trend is also affecting athletic facilities such as gymnasiums and club stadiums or multipurpose halls. However, in such facilities, winding or laying artificial turf is performed depending on the type of competition or event in order to increase the operation rate.

As an apparatus for winding an artificial turf laid on a floor or the like or laying the wound artificial turf, for example, a device disclosed in US Pat. No. 4,399,954 has been put to practical use. ing. In this device, one end of the artificial turf is fixed to a winding drum, and the lower front and rear sides in a direction orthogonal to the axis of the winding drum are supported by a pair of front and rear receiving rollers. The artificial turf is wound up by being supported by a pair of front and rear support rollers and rotating a receiving roller by a motor.

[0004]

Generally, an artificial turf formed so as to be able to be wound has a synthetic resin pile planted on a rubber base so as to be easily bent and wound. The back surface of the base is formed in a flat shape without unevenness so as not to rattle. On the other hand, in the above-mentioned technology, when the artificial turf is wound with the pile inside, the artificial turf is pulled in by the frictional force between the back surface of the base and the surface of the receiving roller, and is wound on the winding drum. . That is, the base is made of rubber and has no irregularities on the back surface, and the receiving roller is also usually formed in a simple cylindrical shape, so that the base and the receiving roller slip easily,
This phenomenon is remarkable at the start of winding. It is conceivable to wind up the pile of the artificial turf outside, but at this time, the artificial turf and the receiving roller further slide. In other words, the above-mentioned technology winds up the artificial turf by the frictional force between the pile or the base of the artificial turf and the receiving roller. There is.

Accordingly, an object of the present invention is to provide an apparatus for winding an artificial turf that can reliably and accurately wind the artificial turf.

[0006]

Means for Solving the Problems A winding shaft, which is installed in an accommodation portion formed close to an artificial turf laying surface and holds one end of the artificial turf, and a front and rear direction perpendicular to the axis of the winding shaft. A pair of front and rear receiving rollers supporting the lower side, a pair of front and rear supporting rollers respectively supporting the front and rear lower sides in a direction perpendicular to the axis at a plurality of axial positions of each receiving roller, and at least one end of the winding shaft Winding means for rotating the winding shaft when the artificial turf is wound, elevating means for holding the winding shaft driving means so as to be able to move up and down, and guiding means for vertically guiding the elevating means Receiving roller driving means for rotating the receiving roller when laying the artificial turf, load compensating means for reducing the load on the winding shaft driving means and lifting / lowering means, and artificial turf extending from the laying surface of the artificial turf to the winding shaft. Corner roller that abuts the bent part of That adopted the technical means that.

In the present invention, the take-up shaft and the take-up shaft driving means may be connected via a chain transmission mechanism.
Alternatively, the winding shaft may be directly connected to the winding shaft driving means.
The winding shaft driving means can be provided on at least one side of the winding shaft.

In the present invention, the load compensating means may include a balance weight or a fluid pressure generating means.

[0009] In the present invention, the corner roller may be installed so as to be able to ascend and descend inside the housing portion, or may be arranged at a predetermined position inside the housing portion.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a plan view of a stadium provided with an artificial turf winding device according to one embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, FIG. 4 is a view taken in the direction of arrows CC in FIG. 3, FIG. 5 is a view taken in the direction of arrows DD in FIG. 4, and FIG. 6 is an enlarged view of a portion E in FIG. As shown in FIG. 1, a pit 1 is formed at one end (left side in the drawing) of the stadium, and the opening of the pit 1 is closed with an openable / closable lid 1a (see FIG. 2). An artificial turf winding device 4 for winding the artificial turf 3 laid on the surface 2 is provided. The artificial turf winding device 4 also serves as a device for laying the artificial turf 3 on the floor 2.

As shown in FIG. 2, the artificial turf winding device 4 includes:
It has a plurality of corner rollers 5 provided at the entrance of the pit 1 so as to be able to move up and down. Both ends of each corner roller 5 are pivotally supported on the upper part of a cylinder 6 supported on the inner wall of the pit 1. When winding (laying) the artificial turf 3, the desired pits are pushed up by pushing up the desired corner roller 5. The sliding resistance of the artificial turf at the entrance is reduced, and when the center of the artificial turf 3 is displaced, the meandering roller is tilted to correct the meandering. As the cylinder, a motor cylinder, a hydraulic cylinder or the like can be used.

One end of the artificial turf 3 passing through the corner roller 5 is
It is fixed to the winding shaft 7. Since the winding shaft 7 has an axial length slightly larger than the width of the artificial turf 3, and when all the artificial turf 3 laid on the floor 2 is wound, the gravity becomes extremely large. It is not practical to support only at both ends. Therefore, in the present invention, the take-up shaft 7 is supported by a pair of front and rear receiving rollers 8a and 8b provided below the front and rear thereof, and each of the receiving rollers 8a and 8b is supported by a pair of front and rear supporting rollers at several positions in the axial direction. It is supported by roller pairs 9a and 9b.

The supporting roller pairs 9a and 9b are driven rollers and are not driven to rotate, but the receiving rollers 8a and 8b and the winding shaft 7 are driven to rotate. That is, as shown in FIG. 5, bearings 20a, 20a are provided at the left ends of the receiving rollers 8a, 8b, and a sprocket wheel 28 is fixed to a portion protruding from each bearing, and these sprocket wheels 28 It is rotationally driven by a receiving roller driving motor 10a via 11a and 11b. Note that the load of the receiving rollers 8a and 8b themselves is substantially
a, 9b, the dual bearings 20a,
20a mainly supports only the thrust load. Further, similarly to FIG. 5, a bearing is provided at the right end of each of the receiving rollers 8a and 8b (not shown). Since the bearing on the right end side is configured not to support the thrust load in consideration of the thermal expansion of the receiving roller (due to an increase in environmental temperature), the bearing substantially reduces the load on the receiving roller and the thrust load. Also do not support.

The drive mechanism of the winding shaft is configured as shown in FIGS. That is, a pair of front and rear fixed frames 21a, 21a are erected at the left end of the winding shaft 7, and a pair of front and rear guide rails 22a, 22a are erected inside the fixed frames 21a, 21a. An elevating frame 23a is arranged inside the two guide rails 22a, 22a, and the guide rollers 24a provided at the four corners of the elevating frame 23a are arranged to run on the guide rails 22a, 22a. Elevating frame 23a
Can move up and down along the guide rails 22a, 22a. On the lifting frame 23a, a winding shaft drive motor 70 and its speed reducer are installed, so that the winding shaft 7 is driven to rotate by this motor 70.

The hanging frame 2 is placed on the lifting frame 23a.
The suspension frame 20 is erected by a wire rope 32 via a rope sheave 31.
Suspended from the ceiling direction of the
A balance weight 26 is attached to the other end of 2. The weight of the balance weight 26 is
a, bearing 25a installed thereon, and spindle drive motor 70
In addition, the load is adjusted to cancel the load of the speed reducer, the suspension frame 20, and the like.

The load of the winding shaft 7 itself is basically supported by the receiving rollers 8a and 8b, and the load of the lifting frame 23a and the winding shaft driving motor 70 installed on the lifting frame 23a is balanced by the balance weight 26. Therefore, a load due to gravity does not particularly act on the bearing 25a of the winding shaft 7. However, the bearing 25a is configured to be able to support a thrust load, and accordingly, a guide roller having flanges on both sides is used as the guide roller 24a. That is, in winding the artificial turf 3, the artificial turf 3 may be gradually shifted rightward or leftward of the winding shaft 7, and may be wound on the winding shaft 7 at this time. Load acts. This thrust load is transmitted to the lifting frame 23a via the bearing 25a, and further transmitted to the guide rails 22a, 22a via the flanged guide roller 24a. Since the thrust load acting on the winding shaft 7 in this way is received by the bearing 25a and the guide roller 24a, the winding shaft 7 becomes thicker as the winding of the artificial turf 3 progresses, but in the left-right direction. Stay in place.

When the winding shaft 7 is wound clockwise in FIG. 3 to wind the artificial turf 3, the reaction force is generated by the lifting frame 23.
The whole including a receives a counterclockwise moment about the axis of the winding shaft 7. This moment is applied to the guide roller 2
4a is received by contacting the guide rail 22a. In particular, since this moment is a counterclockwise moment, it is received by one or both of the lower right guide roller 24a and the upper left guide roller 24a in FIG.

On the other hand, as in FIG. 3, a pair of front and rear fixed frames are erected on the right end of the winding shaft 7, and a pair of front and rear right guide rails are erected inside the fixed frame. (Not shown). An elevating frame is arranged inside the guide rail, and guide rollers provided at four corners of the elevating frame are configured to move up and down along the guide rail. A bearing that engages with the right end of the take-up shaft 7 is installed on the lifting frame. The bearing of this embodiment is
Although it is configured to be able to support the thrust load, a guide roller without a flange is used as the right guide roller in consideration of the temperature expansion of the winding shaft 7 described above. Therefore, in practice, no special thrust load acts on the right bearing.

At the bottom of the pit 1, a plurality of winches 13 for winding a rope 12 connected to the artificial grass 3 at a predetermined interval are provided (see FIG. 2). As shown in FIG. 6, one end of the rope 12 (hook portion 12a)
Is a metal fitting 14 fixed to the tip of an artificial turf 3 having a pile 3c planted on a base cloth 3b fixed on a base 3a.
(A base body 3d made of a material having a slipperiness is fixed to the back surface) and is connected to the artificial grass 3 via a hook 15 fixed thereto. As shown in FIG. 2, the other end of the rope 12 is fixed to a winch 13 via a rope sheave 16 pivotally supported on the back surface of the lid 1a and the upper part of the pit 1.

The operation according to the above configuration is as follows.
The laying operation of the artificial turf can be performed, for example, in the following procedure. After the lid 1a is opened, rope sheaves 16 (see FIG. 1) are installed at a plurality of locations on the end surface of the floor 2 opposite to the pit 1, and attached to the tip of the rope 12 held on the back surface of the lid 1a. The hook portion 12a (see FIG. 6) is pulled out in the direction of the arrow X in FIG. 2, and the hook 1 fixed to the metal fitting 14 fixed to the tip of the artificial turf 3 after passing through the rope sheave.
Lock to 5. Next, the motors 10a and 10b are driven to rotate the receiving rollers 8a and 8b in the direction of the arrow shown in the figure (the winding shaft 7 is rotated in the direction of the arrow R), and the winch 13 is rotated.
Is driven, and the rope 12 is wound up (pulled in the arrow X direction in the figure), whereby the artificial grass 3 is sent out from the winding shaft 7,
It is laid on the floor 2. After all the artificial turf 3 has been laid on the floor 2, the rope 1
2 is removed, and only the rope 12 is wound around the winch 13,
The hook portion 12a at the tip of the rope is fixed to the back surface of the lid 1a, then the rope sheave is removed from the floor 2, and finally the lid 1a is closed. At the start of the laying operation, the corner roller 5 may be raised to the position shown by the broken line in FIG. 2 and then lowered to the position shown by the solid line in FIG. 2 after the winding shaft 7 rotates smoothly.

On the other hand, the winding operation of the artificial turf 3 laid on the floor 2 as described above can be performed, for example, in the following procedure. First, as in the laying operation, after opening the lid, installing the rope sheave, and attaching the hook portion of the rope tip to the tip fitting of the artificial turf, a plurality of air blow devices 17 are installed on both sides of the artificial turf 3. Then, by operating this device, the artificial turf 3 is floated from the floor 2 by operating this device. After the artificial turf 3 floats, the air blow device is removed. At this time, the cylinder 6 is driven to turn the corner roller 5 in FIG.
Up to the position indicated by the broken line (several cm higher than the floor surface). Next, the artificial grass 3 is wound around the winding shaft 7 by driving the motor 70 and rotating the winding shaft 7 in the direction of arrow S. Here, the artificial turf 3 can be easily wound by floating the artificial turf 3 as in the present embodiment.

In the above winding operation, when the winding shaft 7 rotates clockwise in FIG. 3 by driving the motor 70, the motor 70, its speed reducer, and the lifting frame 23a on which these are mounted generate a counterclockwise moment. receive. Since the guide roller 24a comes into contact with the guide rail 22a, the lifting frame 23a cannot rotate in the counterclockwise direction.
Take up. As the artificial turf 3 is wound, the winding shaft 7 becomes thicker, so that the winding shaft 7 rises almost vertically, and accordingly, the bearing 24a and the frame 23a also rise, and the guide roller 24a guides so as to allow this. It rotates while contacting the rail 22a. Thus, the artificial turf 3 is wound on the winding shaft 7.

During the winding of the artificial turf, the artificial turf 3
When the offset occurs, the corner roller 5 in contact with the artificial turf 3 on the offset side is raised, for example, to raise the artificial turf 3.
By tilting the artificial turf across its width, the meandering of the artificial turf can be corrected.

After the artificial turf 3 laid on the floor 2 has been completely wound, the rope is removed from the metal fittings of the artificial turf as in the case of the laying operation, and the winding of the rope and the tip of the rope are performed. The winding operation is completed by fixing the hook to the back surface of the lid, removing the rope sheave, and closing the lid.

As described above, when the take-up shaft of the artificial turf is rotated by driving the receiving roller, the artificial turf is lifted by the air blow device, thereby preventing slippage between the take-up shaft and the receiving roller. The artificial turf is reliably wound on the winding shaft.
Moreover, since the corner roller is provided at the entrance of the pit so as to be able to move up and down, it is possible to correct the meandering of the artificial turf, thereby improving the winding / laying accuracy of the artificial turf.

The present invention is not limited to the above-described embodiment, but can be configured as follows. First, as shown in FIG.
The winding shaft 7 may be directly connected to the driving means (motor 70). Thereby, the configuration on the end side of the winding shaft can be simplified. In FIG. 7, reference numeral 71 denotes an arm for supporting a motor 70, which is fixed to the end face of the lifting frame.
Is a coupling for connecting the output shaft of the motor 70 and the drive shaft 73 of the winding shaft 7. Next, as shown by a dashed line in FIG. 4, a hydraulic cylinder 28 can be used as a load compensating means [installed immediately below the driving unit of the winding shaft and driven by a constant force (gravity for offsetting). In the direction of pushing up), which simplifies the work of adjusting the load. Needless to say, other fluid pressure generating means may be used. Further, the drive means for the winding shaft may be provided only at one end of the winding shaft, which further simplifies the configuration at the winding shaft end side, in combination with the fact that only one load compensating means is required. Can be Next, as shown in FIG. 2, the corner roller 5 provided at the entrance of the pit 1 may be installed at a predetermined position (indicated by a dashed line in the figure) of the inner wall of the pit 1, whereby The configuration can be simplified. However, in this case, it is desirable to operate so that the artificial turf 3 does not meander (for example, reduce the rotation speed of the winding shaft). Further, the winding device can be provided on the floor without providing the pit.

[0027]

According to the present invention, since the winding shaft is driven during the retracting operation of the artificial turf winding device and the receiving roller is driven during the laying operation, the winding and laying of the artificial turf is performed. It can be done reliably. In addition, by bringing up and down rollers into contact with the bent portion of the artificial turf from the laying surface of the artificial turf to the winding shaft, the effect of winding (laying) the artificial turf with high accuracy can be achieved.

[Brief description of the drawings]

FIG. 1 is a plan view of an artificial turf winding device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a view taken in the direction of arrows BB in FIG. 1;

FIG. 4 is a view taken in the direction of arrows CC in FIG. 1;

FIG. 5 is a view as seen in the direction of the arrows D in FIG. 4;

FIG. 6 is an enlarged view of a portion E in FIG. 2;

FIG. 7 is a side view of an artificial turf winding device according to another embodiment of the present invention.

[Explanation of symbols]

1 floor, 2 pits, 3 artificial turf, 4 winding device, 5
Corner roller, 6 cylinder, 7 winding shaft, 8a, 8
b Receiving roller

Claims (7)

[Claims] 1. A winding shaft that is installed in a storage portion formed close to a surface on which artificial turf is laid, and that holds one end of the artificial turf;
A pair of front and rear receiving rollers supporting the front and rear lower sides in a direction orthogonal to the axis of the winding shaft, and a pair of front and rear supporting the front and rear lower sides in the direction orthogonal to the axis at a plurality of axial positions of each receiving roller. A supporting roller, provided on at least one end side of the winding shaft, a winding shaft driving means for rotating and driving the winding shaft when winding the artificial turf, and an elevating means for holding the winding shaft driving means in a vertically movable manner. Guide means for vertically guiding the elevating means, receiving roller driving means for rotating the receiving roller when laying the artificial turf, load compensating means for reducing the loads on the winding shaft driving means and the elevating means, And a corner roller abutting on a bent portion of the artificial turf from the laying surface to the winding shaft. 2. The winding shaft and winding shaft driving means are connected via a chain transmission mechanism.
The described artificial turf winding device. 3. The artificial turf winding device according to claim 1, wherein the winding shaft and the winding shaft driving means are directly connected. 4. The artificial turf winding device according to claim 1, wherein the load compensating means includes a balance weight. 5. The artificial turf winding device according to claim 1, wherein the load compensating means includes a fluid pressure generating means. 6. The artificial turf winding device according to claim 1, wherein the corner roller is supported so as to be able to move up and down inside the housing portion. 7. The artificial turf winding device according to claim 1, wherein the roller roller is installed at a predetermined position inside the storage section.