JPH0882A - Accommodation of natural lawn - Google Patents

Abstract

PURPOSE:To reduce the area of a place for accommodating and controlling lawn pallet sheets by mutually connecting plural pallet sheets on which natural lawns are growing, making up a group of lawn pallets and transferring the whole group of lawn pallets for replacing artificial lawns with natural lawns. CONSTITUTION:Compression air is sent below a sheet 19 arranged under a group 11 of lawn pallets and the group 11 of lawn pallets forced to float thereby are drawn by a tractor 15. The accommodation shelf 63 composed of plural steps is equipped with a belt conveyer 71 and a sloped plate 67 and the group 11 of lawn pallets are drawn up by a wire 73 attached to the belt conveyer 71 and accommodated in the accommodation shelf 63.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage method for moving and storing a natural grass in order to replace the natural grass with artificial grass.

[0002]

2. Description of the Related Art For example, when playing soccer in a multipurpose dome for playing baseball, soccer, various events, etc., it is necessary to replace artificial turf, which has been used for baseball until then, with natural grass. This replacement is
The natural lawn, which was previously grown outside, is moved into the multipurpose dome. And, conventionally, a large number of natural lawns cut into a predetermined area are spread over the site, or the natural lawn is grown on a layer formed with a bark of a thickness of several centimeters. It has been proposed to wind the carpet from the growing place, moving it like a carpet, and unwinding the carpet to spread it.

[0003]

However, moving and transporting the natural lawn from the growing area is complicated, and if the natural lawn is loaded too early, for example, there is a risk that the natural lawn will wither or decay. is there. In addition, if the natural lawn is laid down to the last so that it does not die or decay, it becomes difficult to replace it by the scheduled time. For these reasons, the work of replacing artificial grass with natural grass must be done within a short time.

Therefore, it is conceivable to replace the artificial grass with the natural grass by spreading the pallets on which the natural grass has been planted, but the number of pallets increases and the handling of the pallets becomes troublesome. Further, for example, in a multipurpose dome in which baseball and soccer are alternately performed, the paving work and the unloading work must be performed alternately and frequently, which makes the work extremely troublesome. Therefore, it is conceivable to construct a lawn pallet group in which a predetermined number of pallets are still connected and perform replacement work. However, the lawn pallet group configured in this way requires a large space for storing, for example, while baseball using artificial turf is being performed, which causes a problem in storage.

The present invention has been made to solve the above problems, and a lawn pallet group formed by connecting a plurality of pallets in which natural lawns are planted can be stored in a narrow space. The purpose is to provide a storage method.

[0006]

In order to achieve the above object, the present invention connects a plurality of pallets planted with natural grass and compresses them under a sheet arranged below the connected pallets. It is characterized in that air is sent to make it float, and the floating pallet group is towed by a towing vehicle, and is pulled up by a wire through an inclined plate to a storage rack provided in a plurality of stages to be stored.

[0007]

According to the first aspect of the invention, compressed air is sent under the sheet to float the pallet group, and the pallet group is towed by a towing vehicle, and is pulled up by a wire through a sloping plate to a storage rack provided in multiple stages. To store.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
This will be described in 1. As shown in FIG. 1, in the multipurpose dome 1 of this embodiment, the roof 3 is made of a translucent Teflon film. Inside, there is a site 5 for sports such as soccer or other events in the center, and spectator seats 7 are provided around the site.

As shown in FIG. 2, the site 5 is covered with artificial turf or natural grass 9 depending on the type of competition or event held on the site 5. The size of this site is, for example, a width W of about 70 meters and a length L of about 120 meters. The natural lawn 9 spread over this site 5 is
It is divided into a total of 10 grass pallet groups 11.

Each lawn pallet group 11 has, for example, a width w of 1
It is about 0 to 20 meters, and the length s is about 40 to 60 meters.

Each lawn pallet group 11 is constituted by connecting a plurality of lawn pallets 13 as shown in FIGS. Each lawn pallet 13 has a size of, for example, 1.0 meter × 1.0 meter.

As shown in FIG. 3, each lawn pallet group 11
Is towed by a towing vehicle 15 via a wire 17. The towing vehicle 15 is equipped with a pressure-feeding device 21 such as a compressor for feeding compressed air under the seat 19 (see FIGS. 4 and 5) arranged below the lawn pallet group 11. The pressure-feeding device 21 has a fabric air-blowing duct 23, and the air-blowing duct 23 is disposed over the entire length of the lawn pallet group 11 having a quadrangular shape in the longitudinal direction at the central position in the width direction. Since the blower duct 23 is made of cloth, it collapses and becomes flat when compressed air is not blown in, and the blower duct 23 has a very small thickness. The blower duct 23 has a large number of holes on its side surface so that the compressed air 2
5 is evenly supplied to the entire lower surface of the sheet 19.

The sheet 19 is made of, for example, cloth and has a large size.
It consists of one piece and prevents leakage of compressed air to the outside. That is, as shown in FIGS. 4 and 5, the periphery of the sheet 19 is a skirt shape, and the skirt portion of the skirt is folded under the lawn pallet group 11 and is attached to the back surface of the sheet 19 by the net 27. It is connected. As a result, when compressed air is supplied, the skirt portion bulges and the compressed air is unlikely to escape to the outside.

The lawn pallet 13 is a two-layer pallet. That is, the natural grass 29 and the earth and sand 33 that supports the root portion 31 of the natural grass 29, or a holding portion 35 that holds a material replacing the earth and sand, and a lower portion of the holding portion 35, that is, a bottom portion of the grass pallet 13 are formed. And a cavity 37. A sponge 41, which is a water absorbing material, is put in the cavity 37 together with the water 39. Water 39 is sponge 4
1 and the surplus portion is accumulated on the sponge 41. Holes 4 are formed in the support plate 43 that supports the earth and sand 33,
5, a cloth pumping material 47 is passed through the hole 45 to form a pumping section 49. The lower end of the pumping material 47 is inserted into the sponge 41, and the upper end is inserted into the earth and sand 33 of the natural lawn 29. As a result, the hollow portion 37 is inserted through the pumping material 47.
Water is supplied to the natural lawn 29 by the capillary phenomenon.
Further, since the air layer 50 is formed under the support plate 43, it serves to prevent root rot of the natural grass 29.

Further, the water guiding material 51 is passed to the adjacent lawn pallet 13. That is, the water-conducting material 51 made of cloth is passed from the cavity portion 37 of the one lawn pallet 13 to the cavity portion 37 of the adjacent lawn pallet 13 through each hole 53. Both ends of the water-conducting material 41 are inserted into the sponge 41 of each lawn pallet 13, and the water is guided from the lawn pallet 13 where the water remains to the lawn pallet 13 in which the accumulated water is reduced by the capillary phenomenon. .

Adjacent lawn pallets 13 are connected by bolts and nuts 57. This bolt and nut 5
7 is connected with a certain play in the longitudinal direction,
As will be described later, the lawn pallets 13 can change their mutual postures to some extent.

As shown in FIGS. 3 and 9, the lawn pallet group 11 has a quadrangle as a whole, and wires 59 are arranged in an arc shape from the corner of the end of the quadrangle to the corner of the other end. The two wires 59 are arranged in a state where the two arcs are reversed in the direction of the arc and cross each other in a substantially X shape. Each wire 5
At the end of 9, the metal fitting 6 for pulling this wire 59
1 is attached. Wire 5 with this metal fitting 61
In order to pull the wire 9, a winch 62 for winding the wire 59 may be provided, or the wire 59 may be pulled by the towing vehicle 15 instead of the winch 62.

Each lawn pallet 13 is provided with legs 13A (see FIGS. 6 and 10) at its four corners so that the lawn pallet 13 does not run on the wire 59 and incline. A wire 59 is arranged passing between the legs 13A.

The wire 59 passes through a wire passage 19A (see FIG. 10) provided on the upper surface of the sheet 19. The wire passage 19A is made of cloth and forms a so-called double portion of the sheet 19. The center of the wire 59 is the grass pallet group 11
Secure it to the central part of. However, the lawn pallet group 11 may be fixed not only at the central portion but also at a plurality of positions in the longitudinal direction of the wire 59.

Next, as shown in FIG. 8, a storage rack 63 is used to store the lawn pallet group 11. That is,
The storage shelves 63 are provided in a plurality of stages, and each of the storage shelves 63 has an area capable of storing one lawn pallet group 11 (see FIG. 3) or a plurality of lawn pallet groups 11.
These storage shelves 63 are provided with an inclined plate 67 whose angle can be freely changed by an elevating device 65 and a belt conveyor 71 whose height can be freely changed by another elevating device 69. Engaging portions 75 with which the wires 73 are engaged at predetermined intervals are provided on the surface of the belt conveyor 71. The lawn pallet group 11 can be pulled up by the wire 73 engaged with the engaging portion 75 and stored in the storage shelf 63.

The operation of this embodiment will be described below. In the multipurpose dome 1 (see FIG. 1) of this embodiment, since the roof 3 is a Teflon film and has a light-transmitting property, even when the natural grass 9 is spread in the multipurpose dome 1,
A certain amount of sunshine can be obtained, which is suitable for storing the natural grass 9.

Then, for example, when the soccer game is over and the natural grass 9 is replaced with artificial grass, the grass pallet group 11 (FIG. ). At this time, the blower duct 2 is moved by the pressure feeding device 21 mounted on the towing vehicle 15.
The compressed air 25 is fed under the sheet 19 via the sheet 3. As a result, the skirt portion around the seat 19 receives the wind and swells (see FIGS. 4 and 5). Air duct 23
Also expands into a substantially circular cross section by compressed air. Since the compressed air 25 is difficult to escape to the outside by the skirt, the lawn pallet group 11 is floated up via the sheet 19.

Due to this floating, the lawn pallet group 11 has less friction with the site 5. Therefore, the towing vehicle 15 can be towed with a small force. After towing and transporting the lawn pallet group 11 to near the storage rack 63 (see FIG. 8) (see FIG. 8A), the towing vehicle 15 once removes the wire 17. Although the wire 17 is removed, the blower duct 2
Leave 3 as is and continue to send compressed air. In this state, another long wire 73 is engaged with the grass pallet group 11 and the engaging portion 75 of the belt conveyor 71. Then, when the belt conveyor 71 is rotated counterclockwise in the figure, the grass 73 is pulled up from the grass pallet group 11 by the wire 73. When the tip of the lawn pallet group 11 reaches the left end of the belt conveyor 71 in the figure, the wire 73 is hooked again at a deeper position in the lawn pallet group 11 (a position closer to the right side in the figure). The engagement of the wire 73 with the belt conveyor 71 is also performed with the other engaging portion 75. By rotating the belt conveyor 71 in this manner, the grass pallet group 1
1 can be raised. As a result, the lawn pallet group 11 can be stored in the storage shelf 63. One-tier storage shelf 6
When the storage is completed with respect to 3, the elevating devices 65 and 69 are moved up and down to store in another stage.

Next, for example, when a soccer game is to be played again, the turf pallet group 11 is pulled out from the storage rack 63, moved and transported, and replaced with artificial turf. At this time, as shown in FIG. 8 (B), each lawn pallet group 1 is moved through the wire 17 by the towing vehicle 15 that has climbed up to the middle of the inclined plate 67.
Pull out one. At this time, the belt conveyor 71 is unnecessary and is removed.

In this way, when the lawn pallet group 11 is pulled up or pulled out of the storage shelf 63, the storage shelf 63
The lawn pallet group 11 bends at the boundary between the inclined plate 67 and the inclined plate 67, or at the boundary between the inclined plate 67 and the site 5. At this bent portion, as shown in FIG.
There are cracks 77 in the part (see Fig. 7 (B)),
Alternatively, the earth and sand 33 are pushed to form a bulge 79 (see FIG. 7C). Such bending is sufficiently allowed because the bolt nut 57 connects the lawn pallet 13 with a certain amount of play. In addition, as for the crack 77 and the rise 79, the grass pallet group 11 is on the site 5.
When it is placed on a flat surface, it returns to its original state. By any chance
Even if some cracks 77 and bulges 79 remain, they can be easily restored by leveling.

When the grass pallet group 11 thus pulled out is spread over adjacent to each other, a gap 80 may be formed between them (see FIG. 9). This gap 80
It is difficult to manually correct the. That is, the lawn pallet group 11 is configured by connecting a plurality of lawn pallets 13, and even if the lawn pallet 13 on the side facing the gap 80 is moved, the lawn pallet 13 is connected to the lawn pallet 13. The lawn pallet 13 of
Eventually, a large number of lawn pallets 13 must be moved at the same time, which is difficult to correct by manual work.

On the other hand, in this embodiment, two arcs are arranged.
One end of one wire 59 out of the five wires 59 is attached to the metal fitting 6
Pull through 1 through winch 62. By pulling, a force 81 acts from the wire 59 toward the grass pallet group 11 toward the inside of the arc shape. That is, the arc-shaped wire 59 moves in a direction in which the wire 59 straightly extends, the lawn pallet group 11 receives a force from the wire 59, and the lawn pallet group 11 moves in a direction to close the gap 80. This makes the gap 80
Is easily modified. When a force in the opposite direction is exerted on the lawn pallet group 11 to move it in the opposite direction, the other wire 59 of the two wires 59 may be pulled. These corrections are also performed while sending compressed air. That is, the pumping device 21 mounted on the towing vehicle 15
If compressed air is blown under the seat 19 through the air duct 23 (see FIG. 3), the correction can be performed in a state in which the friction between the grass pallet group 11 and the site 5 is reduced. The pulling force is small.

As described above, according to this embodiment, the lawn pallet group 1 is formed by connecting a large number of lawn pallets 13 by sending compressed air under the seat 19.
It can be moved and transported by lifting it up and pulling it with a small force. Therefore, compared to the case where each lawn pallet 13 is moved and carried one by one, the moving and carrying work can be performed much more quickly.
Further, since the compressed air is sent to reduce the friction between the lawn pallet group 11 and the site 5, and the force required for towing can be reduced, it is possible to prevent the towing vehicle 15 from increasing in size and to reduce the work cost. .

After the transportation and transportation, the seat 1
Since the sheet 9 and the air duct 23 are folded to have a small thickness, the lawn pallet group 11 can be spread or stored while the sheet 19 and the air duct 23 are left as they are. Therefore, at the time of the next mobile transportation work or replacement work, the work can be started as it is. Therefore, the work is easily performed.

The water 39 stored at the bottom of each lawn pallet 13 is held by the sponge 41 and is unlikely to spill. Therefore, the work can be performed without worrying about spilling of the water 39, and the work becomes easy.

The function of the pumping section 49 ensures that the water 39 can be supplied to the natural grass 29. Further, by the function of the water guiding material 51, it is possible to eliminate the absurdity that a large amount of water 39 remains in the other lawn pallets 13 although the natural lawn 29 of some lawn pallets 13 has died due to lack of water. . In other words, if the water 39 remains on any of the lawn pallets 13, the natural lawn 29 of any of the lawn pallets 13 can be prevented from withering.

Further, when the lawn pallet group 11 is stored in the storage shelf 63, the wire conveyor 73 is used by the belt conveyor 71.
Since the lawn pallet group 11 is pulled up and stored via the, the dimension between the storage shelves 63 can be sufficiently reduced. That is, it is sufficient that this size corresponds to the thickness of the lawn pallet group 11. Therefore, it is possible to provide a large number of storage shelves 63 in a small space.

The gap 80 formed between the lawn pallet groups 11 can be easily corrected by pulling both ends of the wire 59 with the winches 62. Therefore, the work of laying the lawn pallet groups 11 together without a gap 80 can be easily performed.

Further, since the storage shelf 63 is three-dimensional and can be well ventilated, the natural lawn 29 can be stored without being damaged for a week, for example, even if there is little sunlight. In addition, although the pumping part 49 of the lawn pallet 13 has the pumping material 47 made of cloth in the above-mentioned embodiments, in other embodiments, the pumping material 4 is provided as shown in FIG.
7 does not have, but the hollow part 37 and the earth and sand 33 of the natural lawn 29
And may partially contact with each other through a hole 83 formed in the side wall of the cavity 37. Also,
Instead of forming the large hole 83, the upper wall or side wall of the cavity 37 may be formed of a water-permeable material.

Further, in the above embodiments, the water guiding material 51 for guiding water from one side to the other side of the lawn pallet 13 was provided, but it is not necessarily provided in the other embodiments, and as shown in FIG. It is also possible not to provide it at all.

Further, in the above embodiments, the water absorbing material is the sponge 41, but in other embodiments, any material that retains water, such as water absorbing polymer, is adopted in the present invention. be able to.

Further, in the above embodiment, the air duct 2
Although only one 3 is provided, the number 3 is not limited to one in other embodiments, and a plurality of three may be provided. For example, not only the air duct 23 passing through the center of the lawn pallet group 11 but also a dedicated air duct for supplying compressed air to the surrounding skirt may be provided.

In the above embodiment, the wire 73 for housing the lawn pallet group 11 is engaged with the engaging portion 75 provided on the belt conveyor 71 to pull up the lawn pallet group 11. However, in another embodiment, the wire 73 may be wound by a winch and the lawn pallet group 11 may be pulled up without using the belt conveyor 71, for example.

Further, in the above embodiment, the arc-shaped wire 59 arranged to eliminate the gap 80 of the lawn pallet group 11 is only partially fixed to the sheet 19, but other In this embodiment, the sheet 19 may be fixed at all portions in the longitudinal direction. Even if all the parts are fixed, the lawn pallet group 11 can be moved by pulling both ends of the wire 59, whereby the gap 80 can be corrected.

[0040]

As described above, according to the present invention, compressed air is sent under a sheet to float a pallet group, which is towed by a towing vehicle and stored in a plurality of storage shelves. As a result, the area required for storage can be reduced by the number of storage shelves, enabling storage in a narrow space.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a multipurpose dome according to an embodiment of the present invention.

FIG. 2 is a plan view showing a site of natural grass in the multipurpose dome of FIG.

FIG. 3 is a plan view showing a state where a part of the natural grass of FIG. 1 is being moved and transported.

FIG. 4 is a longitudinal sectional view of a main part of FIG.

5 is an enlarged perspective view of a main part of FIG.

6 is a cross-sectional view of the main parts of FIG.

7A and 7B are diagrams showing a movement accompanying movement of the lawn pallet in FIG. 6, where FIG. 7A is an overall longitudinal sectional view, FIG. 7B is an enlarged view of a portion B of FIG. 7A, and FIG. It is a C section enlarged view.

FIG. 8 is a diagram showing a work of storing the lawn pallet group of FIG. 7 in a storage shelf, FIG.
(B) is a diagram showing a state in which the stored lawn pallet group is pulled out.

9 is a plan view showing a work for correcting a gap formed between the grass pallet groups in FIG.

10 is a vertical cross-sectional view showing a part of FIG.

FIG. 11 is a vertical cross-sectional view of a grass pallet group according to another embodiment.

[Explanation of symbols]

1 Multipurpose Dome 3 Roof 5 Site 7 Spectator Seat 9 Natural Lawn 11 Lawn Pallet Group 13 Lawn Pallet 15 Traction Vehicle 17 Wire 19 Sheet 21 Pressure Feeding Device 23 Blower Duct 25 Compressed Air 27 Net 29 Natural Lawn 31 Root Part 33 Earth and Sand 35 Holding Part 37 Cavity 39 Water 41 Sponge 43 Support plate 45 Hole 47 Pumping material 49 Pumping section 51 Water transfer material 53 Hole 57 Bolts / nuts 59 Wire 61 Metal fitting 63 Storage shelf 65, 69 Lifting device 67 Sloping plate 71 Belt conveyor 73 Wire 75 Joint part 77 Crack 79 Rise 80 Gap 81 Force

Claims (1)

[Claims] 1. A plurality of pallets in which a natural lawn is planted are connected to each other, compressed air is sent under a sheet arranged below the connected pallets to float, and the lifted pallets are driven by a towing vehicle. A method of storing a natural lawn, which is characterized by pulling and pulling it up with a wire through a slanting plate to a storage rack provided in multiple stages.