JP7315919B2 - Planting panels and stadium - Google Patents

Description

The present invention relates to planting panels and stadiums used in fields.

2. Description of the Related Art Conventionally, there are stadiums in which fields for soccer, rugby, track and field, etc. are made of natural turf. In some such stadiums, the upper part of the spectator seats is covered with a roof for the purpose of holding the event without being affected by spectator noise to the surroundings and the weather. However, this roof reduces the amount of solar radiation supplied to the natural grass, and it may not be possible to grow the natural grass.

Therefore, in order to grow natural turf, a technique for raising the stadium field to the height of the roof has been studied (see, for example, Patent Document 1). In the stadium described in Patent Literature 1, extendable erection columns are arranged around the field movable section, and a winch for raising and lowering the field movable section is provided on the roof. When the field is not in use, the erection columns are extended and connected to the roof of the stadium. The field holding part is then raised to roof height using a winch and connected to the roof.

Further, a stadium is being studied that secures the sunshine by putting the field outside for natural turf curing (see, for example, Non-Patent Document 1). In the technique described in this non-patent document, when a baseball game, a concert, or an exhibition is held, a stage made of natural grass is moved horizontally to grow grass outside the stadium.

JP 2014-105448 A

Sapporo Dome "Knowing the Dome / Useful Information Hovering Soccer Stage", [online], [Searched on May 2, 2019], Internet <URL: https://www.sapporo-dome.co.jp /dome/hovering.html>

As shown in Patent Literature 1, it is desirable to make the field light when the field is raised to the roof in order to grow lawn. Further, in the technique described in Non-Patent Document 1, pneumatic pressure is used to lift the field and move it in the horizontal direction. Even in this case, it is desired to make the field light for smooth movement.

For weight reduction, it is necessary to thin the bed soil in which the lawn is planted.
Therefore, it is conceivable to thin the bed soil by arranging artificial soil having fibers in which the roots of natural grass are entwined on the bed soil. However, in this case, since the artificial soil has better water retention than the bed soil, the water remains on the bed soil, which causes a problem that it is difficult to drain the artificial soil.

A planting panel for solving the above-mentioned problems comprises an artificial soil section through which water can pass, and a permeable water-permeable section arranged at the lower end of the artificial soil section, which includes constituent materials in which the roots of plants planted on the top are entwined. It includes a sheet, a drainage base made of synthetic resin that supports the artificial soil from below and allows the water to pass through, and a receiving plate that dissipates heat under the drainage base.

A stadium for solving the above problems is a stadium equipped with a planting panel, and includes a moving mechanism for moving the planting panel vertically or horizontally, and the planting panel has a root of a plant planted on the top. An artificial soil section that includes entwined components and allows water to pass through; an air-permeable water-permeable sheet disposed at the lower end of the artificial soil section; and a receiving plate for dissipating heat under the drainage base.

According to the present invention, the field can be lightened and moved efficiently.

Schematic sectional drawing explaining the structure of the stadium in embodiment. Sectional drawing of the principal part of the planting panel in embodiment. Schematic sectional drawing explaining the structure of the stadium in the state which raised the field in embodiment. It is a perspective view of the principal part of the stadium in embodiment, Comprising: (a) is before raising a field, (b) shows the state which raised the field.

An embodiment embodying a planting panel and a stadium will be described below with reference to FIGS. 1 to 4. FIG.
As shown in FIG. 1, the stadium 10 of this embodiment includes a field portion 20 that can be raised and lowered as a planting panel, stands 11, and a roof 15 that covers the stands 11 above. 1 and 3, the front stand 11 is omitted in order to make the drawings easier to see.

The field portion 20 includes a substantially rectangular parallelepiped body portion 30 and a support portion 25 . A game such as soccer is played on the field portion 20 . The details of the configuration of the body portion 30 will be described later.

The support portion 25 is a beam member that supports the field portion 20, and is configured by, for example, a plurality of beam members having a truss structure. A plurality of lights (not shown) for illuminating the lower side of the support portion 25 when the field portion 20 is raised is provided on the lower surface of the support portion 25 (between the beam members).

A plurality of stands 11 are arranged so as to surround the periphery (four sides) of the field portion 20 . The stand 11 is a tiered spectator seat, and is constructed so as to increase in height from the field section 20 side toward the outside.

A plurality of roof pillars 16 are arranged on the outer periphery of the stand 11, and the roof 15 is supported by the roof pillars 16. - 特許庁The roof 15 is, for example, a truss structure, and is a fixed roof that covers the stand 11 and opens the field above. Furthermore, a first water supply pipe (not shown) is fixed to the roof 15 . This first water supply pipe is connected to the supply pipe of the field section 20 raised to the roof 15, and supplies water to the field section 20 through the valve.

Further, a winch (not shown) as a lifting device for lifting the field portion 20 is provided at the end of the roof 15 on the field portion 20 side. A connection fixing device for fixing the raised field portion 20 is provided on the portion of the roof 15 near the winch.

(Detailed configuration of field unit 20)
As shown in FIG. 2 , the body portion 30 of the field portion 20 is provided on the upper chord member 25 a of the support portion 25 . The body portion 30 includes a receiving plate 31, a heat insulating portion 32, a drainage base portion 33, a permeable sheet 34, and an artificial soil portion 35, which are laminated. Here, the receiving plate 31, the drainage base portion 33 and the artificial soil portion 35 have substantially the same planar shape (rectangle).

The receiving plate 31 supports the lower surface of the body portion 30 . The receiving plate 31 is composed of a plate made of steel with unevenness formed therein, and functions as a heat radiation plate by increasing the surface area. Further, the receiving plate 31 is gently inclined so that the outer circumference of the body portion 30 is lowered.

The heat insulating part 32 is composed of a plurality of small pieces of foamed polystyrene, and is laid so that the unevenness of the receiving plate 31 is filled in and the upper surface is flat. In this case, the upper surface of the heat insulating portion 32 has an inclination such that the outer circumference of the main body portion 30 is lowered according to the inclination of the receiving plate 31 . Then, the drainage base portion 33 is spread over the heat insulating portion 32 . As a result, the water that has flowed down from the drainage base portion 33 is received by the heat insulating portion 32 and the receiving plate 31 and flows out to the outer periphery of the field portion 20 along the slope.

The drainage foundation 33 is composed of a pallet-shaped unit made of synthetic resin. In this embodiment, Permavoid 85 (trade name) manufactured by Polypipe is used as the drainage foundation 33 . Permavoid85 is an 85mm thick plastic unit made of polypropylene. The drainage foundation 33 includes a plurality of cylindrical support portions, a connecting portion for connecting to other units via connecting members, and a plurality of frame portions connecting them vertically, horizontally, and obliquely. In this way, the drainage foundation 33 made of a constituent member having voids is excellent in drainage.
Between the drainage foundations 33, a plurality of underdrain drainage parts 33a are arranged with a gap (for example, at intervals of 5 m). For the underdrain drain section 33a, for example, two rows of high-tech kankyo drains (trade name) HTCD manufactured by Green Masters Shimizu are arranged, and a net bridge filter F1 is arranged thereon. Further weight reduction is achieved by using obsidian perlite as the net bridge filter F1.

The permeable sheet 34 is made of nonwoven fabric and covers the bottom surface of the artificial soil section 35 . The permeable sheet 34 is arranged between the drainage foundation 33 and the artificial soil portion 35 so that the constituent materials of the artificial soil portion 35 do not flow out.

The artificial soil portion 35 is arranged on the drainage base portion 33 via the permeable sheet 34 . The circumference of the artificial soil part 35 is about 140 mm in height and is surrounded by boards. Furthermore, natural grass G1 is planted on the artificial soil portion 35 . The artificial soil part 35 comprises a fibrous material that allows water to pass through. In this embodiment, AirFibr (registered trademark) manufactured by Natural Grass is used as the artificial soil section 35 . This AirFibr is composed of a mixture of microfibers (man-made fibers), carbonized cork granules and fine silica sand. Therefore, artificial fibers, carbonized cork grains and silica sand are constituent materials of the artificial soil portion 35 . In this air fiber, the roots of the natural grass G1 are entwined with the microfibers to strengthen the lawn, and the silica sand and carbonized cork grains do not become muddy, but the water retention capacity of the capillary phenomenon allows the necessary moisture and nutrients to be supplied to the roots of the natural grass G1. Let it be absorbed by the natural turf G1 through.

Furthermore, a plurality of supply pipes 36 are arranged at intervals in the body portion 30 of the field portion 20 . This supply pipe 36 is used to supply water to the natural grass G1. The supply pipe 36 penetrates from the receiving plate 31 to the artificial soil section 35, and has a sprinkler head (not shown) at its upper end. Further, the lower portion of the supply pipe 36 protrudes below the receiving plate 31 , bends in the horizontal direction, and extends to the end of the field portion 20 . A valve 36 a is provided near the end of the supply pipe 36 .
The supply pipe 36 is connected to the second water supply pipe 41 when the field portion 20 is lowered, and is connected to the first water supply pipe when the field portion 20 is raised. The second water supply pipe 41 is provided with a valve 41 a near the connection with the supply pipe 36 .

Furthermore, an exhaust groove 37 is provided on the outer periphery of the body portion 30 of the field portion 20 . A cushioning material 37 a is arranged in the exhaust groove 37 . This exhaust groove 37 exhausts air that has passed through the drainage base portion 33 and has acquired heat from the receiving plate 31 .
A drainage groove 38 is provided below the exhaust groove 37 . This drainage groove 38 is formed to extend to the outer peripheral portion of the receiving plate 31 .

(Action of field portion 20)
As shown in FIGS. 1 and 4(a), when the field portion 20 is lowered, a game is played on the field portion 20 using the natural turf G1. In the position where the field section 20 is lowered, the supply pipe 36 is connected to the second water supply pipe 41 and the valves 36a, 41a are opened. At this position, water is sprayed from the upper end of the supply pipe 36 onto the natural lawn G1 as required. The sprayed water reaches the receiving plate 31 via the artificial soil portion 35 , the permeable sheet 34 , the drainage base portion 33 and the heat insulating portion 32 of the field portion 20 . Then, this water flows out to the outer periphery of the main body of the field portion 20 according to the inclination of the receiving plate 31 .

<Growing natural grass G1>
In order to irradiate the entire surface of the natural grass G1 with sunlight, the field portion 20 is raised as shown in FIGS. 3 and 4(b).

Specifically, first, the valves 36 a and 41 a are closed to separate the supply pipe 36 and the second water supply pipe 41 . Next, the rope of the winch fixed to the roof 15 is lowered and hooked on the field part 20. - 特許庁Then, the field part 20 is raised to the height of the roof 15 by rotating the motor of each winch and winding the rope. Next, the field part 20 is connected and fixed to the roof 15 using a connection fixing device (not shown) provided on the roof 15 . Then, the supply pipe 36 of the field section 20 is connected to the first water supply pipe fixed to the roof 15 .

In this case, it is also possible to hold an event below the field portion 20 . When an event is held, lighting provided under the receiving plate 31 of the field section 20 is used. In this case, while irradiating the entire surface of the natural turf G1 of the field section 20 with sunlight, the valve 36a and the valve of the first water supply pipe are opened, and the natural turf is appropriately supplied through the first water supply pipe and the supply pipe 36. Supply water to G1. In this case, since the natural grass G1 is placed on the roof, it is possible to secure the ventilation necessary for growing the lawn.

When the field section 20 is to be lowered, the connection fixing device is removed to release the connection fixation between the field section 20 and the roof 15 . Then, the motor of each winch is rotationally driven to lower the field portion 20 . When the field part 20 lands, the rope of each winch is removed from the field part 20 and the rope is hoisted.

According to this embodiment, the following effects can be obtained.
(1) The body portion 30 of the field portion 20 of the present embodiment includes an artificial soil portion 35 in which natural grass G1 is planted, and a drainage base portion 33 arranged with a permeable sheet 34 interposed therebetween. The artificial soil part 35 is provided with microfibers that allow water to pass through and are entwined with the roots of the natural grass G1. The drainage base part 33 supports the artificial soil part 35 from below and is made of a synthetic resin that allows water to pass through. As a result, even in a configuration in which the bed soil is omitted and the thickness of the field portion 20 is reduced, the drainage base portion 33 supports the artificial soil portion 35, the artificial soil portion 35 fixes the natural grass G1, and the field portion 20 can be made lighter. In this case, since water can be drained from the artificial soil portion 35 to the drainage base portion 33, drainage in the artificial soil portion 35 can be improved.

(2) The body portion 30 of the field portion 20 of the present embodiment includes a receiving plate 31 for heat dissipation under the drainage base portion 33 . Furthermore, an illumination is provided under the receiving plate 31 . When an event is held below the elevated field section 20, heat is generated by lighting and crowds. In this case also, the heat is radiated in the receiving plate 31, the heat transfer to the artificial soil portion 35 is suppressed, and the temperature rise of the natural grass G1 can be suppressed.

(3) The body portion 30 of the field portion 20 of the present embodiment has the heat insulation portion 32 between the drainage base portion 33 and the receiving plate 31 . Thereby, heat transfer to the natural grass G1 on the artificial soil portion 35 can be suppressed via the heat insulating portion 32 .

(4) The receiving plate 31 of this embodiment is inclined toward the outer periphery. Thereby, the water from the drainage base portion 33 can be discharged to the outer circumference of the main body portion 30 .
(5) The body portion 30 of the field portion 20 of the present embodiment is provided with an exhaust groove 37 on the outer periphery of the field portion 20 (artificial soil portion 35). As a result, the drainage base portion 33 is ventilated and the heat can be exhausted through the exhaust groove 37 .

(6) The body portion 30 of the field portion 20 of the present embodiment includes a supply pipe 36 penetrating from the receiving plate 31 to the artificial soil portion 35 . When the horizontal direction of the supply pipe 36 is buried in the artificial soil portion 35, the artificial soil portion 35 needs to be thickened accordingly in order to secure the area for the roots of the natural grass G1. Therefore, by exposing the horizontal piping of the supply pipe 36 under the body portion 30, the thickness of the field portion 20 can be reduced and the field portion 20 can be made lighter.

(7) The supply pipe 36 of the field portion 20 of the present embodiment is connected to the first water supply pipe at the position where the field portion 20 is raised. Therefore, in order to grow the natural grass G1, water can be supplied using the supply pipe 36 while the field portion 20 is raised.

This embodiment can be implemented with the following modifications. This embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
- In the field section 20 of the above embodiment, the drainage base section 33 is arranged below the artificial soil section 35 via the permeable sheet 34 . The layered structure of the artificial soil portion 35 and the drainage base portion 33 is not limited to the structure via the water permeable sheet 34 . For example, if drainage from the artificial soil section 35 can be improved, a structure in which a thin bed soil is arranged under the artificial soil section 35 and above the drainage base section 33 may be used.

- In the above embodiment, an air fiber is used as the artificial soil portion 35 . The artificial soil part 35 is not limited to the case of using air fibers, but the artificial soil part 35 has a constituent material that can intertwine the roots of the natural grass G1, supply moisture and nutrients to the natural grass G1, and make the thickness thinner than the conventional bed soil. soil.

- In the above-described embodiment, a permanent void is used as the drainage base portion 33 . The constituent material of the drainage base portion 33 is not limited to the permavoid, and may be any member made of a synthetic resin that supports the artificial soil portion 35 from below and allows the water flowing out of the artificial soil portion 35 to pass through as it is. .

- The receiving plate 31 of the field portion 20 of the above-described embodiment is configured with an inclination such that the outer circumference is lowered for drainage. The structure of the receiving plate 31 is not limited to this structure.

- In the above embodiment, the exhaust groove 37 is provided on the outer circumference of the field portion 20 . The heat exhaust mechanism of the field section 20 is not limited to this. For example, a cold air device may be arranged on the side of the drainage base 33 or the receiving plate 31 or below or above the exhaust groove 37 to force cold air to flow.

- In the above embodiment, the field portion 20 is raised. In this state, lawn maintenance may be performed. For example, in the vicinity of the roof 15, a mechanism for running a vehicle used for lawn maintenance may be provided, or a warehouse for maintenance may be provided. In the latter case, it is possible to easily take out the materials necessary for the maintenance of the lawn at the position where the field portion 20 is raised on the roof 15 .

- In the above embodiment, the field part 20 is lifted up to the roof 15 and fixed. The position (height) at which the field part 20 is lifted and fixed is not limited to this. In this case, an elevating mechanism capable of elevating to an arbitrary height and a fixing member for fixing the field portion 20 at an arbitrary height may be provided. For example, the field part 20 may be raised to a height where a person can enter underneath and be fixed, or the field part 20 may be raised to a height halfway up the stand 11 and fixed. In the former case, maintenance of the lower portion of the field portion 20 (receiving plate 31, etc.) can be efficiently performed. In the latter case, competitions may be held on the field portion 20 and events or the like may be held below the field portion 20 . In this case, the aisles leading to the spectator seats for watching the games on the field section 20 may be separated from the aisles leading to the spectator seats for watching the events taking place below.

- In the above embodiment, the winch provided on the roof 15 is used to move the field section 20 up and down. The mechanism for raising and lowering the field portion 20 is not limited to this. For example, a jack, an erection pillar, or the like may be placed below the field portion 20, and these may be moved up and down to move the field portion 20 up and down.

- In the above embodiment, the field portion 20 is moved vertically. The direction in which the field portion 20 is moved is not limited to the vertical direction, and may be moved in the horizontal direction.

F1... Net bridge filter, G1... Natural lawn, HTCD... Hi-tech Kankyo drain, 10... Stadium, 11... Stand, 15... Roof, 16... Roof pillar, 20... Field part, 25... Support part, 25a... Upper chord material, DESCRIPTION OF SYMBOLS 30... Main body part 31... Receiving plate 32... Thermal insulation part 33... Drainage foundation part 33a... Underdrain drainage part 34... Permeable sheet 35... Artificial soil part 36... Supply pipe 36a, 41a... Valve, 37 ... Exhaust groove 37a ... Cushioning material 38 ... Drainage groove 41 ... Second water supply pipe.

Claims (6)

an artificial soil section that is provided with constituent materials in which the roots of plants planted on the upper part are entwined and that allows water to pass through;
a breathable permeable sheet disposed at the lower end of the artificial soil section;
a drainage foundation made of a synthetic resin that supports the artificial soil from below and allows the water to pass through;
A planting panel comprising a receiving plate made of steel with unevenness formed therein for receiving water that has fallen from the drainage base and for dissipating heat under the drainage base. In the planting panel according to claim 1,
A plant further comprising a supply pipe projecting downward from the artificial soil portion through the receiving plate, connectable to a water supply pipe for supplying water from the outside, and supplying water to the plant. tree panel. In the planting panel according to claim 1 or 2,
The planting panel, wherein the receiving plate has an inclination that becomes lower toward the outer circumference of the drainage base. In the planting panel according to any one of claims 1 to 3,
A plurality of beam members are provided on the lower surface of the receiving plate,
A planting panel, wherein lighting is provided between the plurality of beam members. At the stadium with planting panels,
A moving mechanism for moving the planting panel vertically or horizontally,
The planting panel is
an artificial soil section that is provided with constituent materials in which the roots of plants planted on the upper part are entwined and that allows water to pass through;
a breathable permeable sheet disposed at the lower end of the artificial soil section;
a drainage foundation made of a synthetic resin that supports the artificial soil from below and allows the water to pass through;
The stadium is characterized by comprising a receiving plate made of steel with unevenness formed thereon for receiving water flowing down from the drainage foundation and for dissipating heat under the drainage foundation. In the stadium according to claim 5,
The planting panel is further provided with a supply pipe projecting downward from the artificial soil portion through the receiving plate,
the supply pipe is detachably connected to an external water supply pipe to supply water to the plant;
The stadium, wherein the water supply pipe is provided at a position before and after movement of the planting panel by the moving mechanism so as to be connectable with the supply pipe.