JPH0878A - Turf pallet group - Google Patents

Abstract

PURPOSE:To facilitate the correction of a gap formed between adjacent turf pallets during the work to exchange artificial turf with natural turf by transferring a turf pallet group composed of a plurality of pallets planted with natural turf and connected with each other and placing the pallet groups close to each other. CONSTITUTION:A sheet placed under a turf pallet group 11 is provided with two wires 59. Each wire 59 is extended from an end to the other end of the sheet in curved form and the wires 59 are crossed with each other in nearly X-form. The formed gap 80 can be closed by pulling both ends of a wire in two wires 59. The pulled wire 59 exerts a force 81 on the turf pallet group 11 toward the inside of the curve. The force 81 shifts the turf group 11 to close the gap 80.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet in which a natural lawn is used for replacing a natural lawn with an artificial turf, and particularly, a lawn pallet group in which a plurality of pallets are connected is adjacent to each other without a gap. The lawn pallets that can be used.

[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. In particular, for example, in a multipurpose dome where 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 possible to construct a lawn pallet group while connecting a predetermined number of pallets.

However, it is difficult for the grass pallet groups thus constructed to be adjacent to each other without a gap. That is, for example, the sides of a lawn pallet group having a quadrangle as a whole must be adjacent to each other without a gap, but when a minute gap is generated between the sides, the lawn pallet group has a plurality of pallets. It is extremely difficult to eliminate the gap due to human power, etc.

The present invention has been made in order to solve the above problems and provides a lawn pallet group which allows adjacent lawn pallet groups formed by connecting a plurality of pallets to each other without a gap therebetween. The purpose is to provide.

[0007]

In order to solve the above-mentioned object, the present invention is directed to a pallet in which a natural lawn is planted, a sheet arranged below a plurality of pallets connected to each other, and a longitudinal direction of the sheet. A pair of wires that are curved in the width direction of the sheet and are arranged in an arc shape from one end to the other end.

[0008]

According to the present invention, when both ends of one of the pair of wires arranged on the sheet are pulled, a force acts on the lawn pallet group from the wire in the width direction of the sheet to move the lawn pallet group.

[0009]

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 grass 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, for example, made of 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, a 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 the turret pallet group 11 is curved in the width direction of the sheet 19 from the corner of the end of the quadrangle in the longitudinal direction to the corner of the other end. Then, the pair of wires 59 are arranged in an arc shape. 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, a tractor vehicle 15 (see FIG. 3) is used to move the grass pallet group 11 from the site 5 of the multipurpose dome 1 (see FIG. 3). 2)). At this time, the compressed air 25 is blown under the seat 19 via the air duct 23 by the pressure feeding device 21 mounted on the towing vehicle 15. As a result, the skirt portion around the seat 19 receives the wind and swells (see FIGS. 4 and 5). Air duct 2
3 also swells into a substantially circular cross section by compressed air. Compressed air 25
Since it is difficult to escape to the outside due to 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. When the belt conveyor 71 is rotated counterclockwise in the figure, the lawn pallet group 11 is pulled up by the inclined plate 67 by the wire 73. The front end of the grass pallet group 11 is a belt conveyor 71.
When the wire 73 is reached to the left end in the figure, the wire 73 is hooked again at a deeper position in the grass pallet group 11 (a position closer to the right 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 lawn pallet group 11 can be further pulled up. In this way, lawn pallets 11
Can be stored in the storage shelf 63. When the storage of the storage shelves 63 in one stage is completed, 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 lawn 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 from 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, one end of one wire 59 out of a pair of wires 59 curved in the width direction of the seat 19 and arranged in an arc between the ends of the seat 19 is provided with the metal fitting 6
Pull through 1 through winch 62. By pulling, the sheet 1 from the wire 59 to the lawn pallet group 11
A force 81 acts in the width direction of 9. That is, the arc-shaped wire 59
Moves in a direction in which it extends straight, and the lawn pallet group 11 receives a force 81 from the wire 59 toward the inside of the arc.
In response to this, the lawn pallet group 11 moves in the direction of closing the gap 80. Thereby, the clearance 80 can be easily corrected. When applying a force in the opposite direction to the lawn pallet group 11 to move in the opposite direction, the two wires 5
The other wire 59 of 9 may be pulled. These corrections are also performed while sending compressed air. That is, from the pressure feeding device 21 mounted on the towing vehicle 15 to the air duct 23
If the correction is performed while sending compressed air to the lower side of the sheet 19 via (see FIG. 3), the correction can be performed in a state in which the friction between the lawn pallet group 11 and the site 5 is reduced.
The force to pull 9 is small. As described above, according to this embodiment, 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 making the lawn pallet groups 11 adjacent to each other without a gap 80 can be easily performed.

Further, by sending compressed air under the sheet 19, the lawn pallet group 11 constituted by connecting a large number of lawn pallets 13 can be floated up and towed and transported by a small force. Therefore, 1 for each lawn pallet 13
Compared to the case of moving and carrying one by one, the moving and carrying work can be performed much faster.

Further, since the compressed air is fed 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 reduce the work cost. be able to.

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.

Further, 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.

When the lawn pallet group 11 is stored in the storage shelf 63, the belt 73 conveys the wire 73.
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.

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.

Although the water absorbent is the sponge 41 in the above-mentioned embodiments, 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.

Further, in the above embodiment, the wire 73 for storing 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 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.

[0041]

As described above, according to the present invention, one of the pair of wires arranged on the seat is required.
By pulling both ends of the wire of the book, a force works toward the inside of the arc shape of the wire, and the lawn pallet group moves, so it is easy to move the lawn pallet group without manual labor and to leave a gap between the lawn pallet groups. Can be eliminated.

[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 pallet in which a natural lawn is vegetated, a sheet arranged below a plurality of the pallets connected to each other, and an arc shape curved in the width direction of the sheet from end to end in the longitudinal direction. A pair of lawn pallets, which are arranged in the.