JPH10218600A - Pneumatic movable body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a pneumatic movable body lightly shiftable, easy in maintenance and high in a soundproofing effect as well as to make the scattering of dust around the circumference checkable to the mininum by attaching a sealing member to the lower edge of a seal passage, and enabling it to feed the inner part of a housing with a proper amount of pressured air. SOLUTION: Any load can be brought to zero in theory by pressurizing the inside with pressure equal to the load of a housing 1, by way of example. This housing 1 in a state of being lightened in weight like this lightly shiftable by driving a wheel. Compressed air fed to an inner part of this housing 1 is blown to the outside from the circumference of the housing 1, but flexible sealant 21 is attached to the lower edge of a seal passage 2 of the circumferential part, so that airtightness inside is maintainable. In addition, since the compressed air to be blown out is discharged after passing through a filter installed in an outer wall of the seal passage 2, all the gathered dust is easily eliminable. In this connection, when the wheel is raised up and a supporting beam 12 is grounded, it is usable as a sports stadium and suchlike.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pneumatic moving body.

[0002]

2. Description of the Related Art Conventionally, there has been a moving body which can move by slightly floating from the floor surface using air pressure.

The present invention is a kind of device utilizing such air pressure, but it can be moved lightly using both air pressure and wheels, and is easy to maintain and has a high soundproofing effect. An object of the present invention is to provide a pneumatic moving body capable of minimizing scattering of dust.

[0004]

In order to achieve the above object, a pneumatic moving body according to the present invention has a main body formed of a box having only a bottom open, and has a support beam inside and outside the box. A seal passage is arranged on the outer periphery of the inside of the box, wheels that can be raised and lowered are arranged in the seal passage, a seal material is attached to the lower edge of the seal passage, and a casing is installed inside the box. It features a pneumatic moving body configured to supply compressed air.

[0005]

Embodiments of the present invention will be described below with reference to the drawings.

<a> The main body of the moving body. The main body of the moving body of the present invention is constituted by the box 1 in which only the bottom surface is open. The surface corresponding to the upper lid of the box 1 is used as a field 11 of a stadium where natural grass is laid, for example. The box 1 has a support beam 12 disposed vertically and horizontally inside the wall, in addition to the surrounding wall. By supporting the surface of the field 11 from below by the support beams 12, rigidity is secured and accurate horizontality is maintained. The support beams 12 define a large number of small rooms with open bottom surfaces.
An opening is formed in the rib of the support beam 12 so that buoyancy of equal distribution can be obtained.

<B> Seal Passage A seal passage 2 partitioned by a support beam 12 is arranged on the outer peripheral portion inside the box 1. The support beam 12 serving as a partition of the seal passage 2 does not have a vent opening, so that ventilation through the rib of the support beam 12 is prevented. However, since the lower surface is open, when the box body 1 is raised, it is easy for the compressed air to flow into the seal passage 2 from the lower surface. A sealing material 2 made of a flexible material is provided on a lower edge of the sealing passage 2.
1, and the airtightness is maintained by the sealing material 21 coming into contact with the floor surface. A filter 22 is attached to the outer wall of the seal passage 2. The filter 22 can absorb and remove dust scattered by the fumes.

<C> Lifting wheels. A wheel 3 that can be further raised and lowered is disposed in the seal passage 2. For this ascent and descent, the jack 31 is attached to the frame 32 of the wheel 3.
If the wheel frame 32 is pushed down by the jack 31, the wheel 3 is lowered, and the box 1 can be raised by the reaction force. In the illustrated embodiment, one point of the wheel frame 32 is attached to the box body 1 with a pin 33, and the wheel 3 is pushed down by pushing down the wheel frame 32 with one jack 31 to incline the wheel frame 32. . The position of the vertically movable wheel 3 is configured such that the lower surface of the support beam 12 comes into contact with the ground when the wheel 3 is moved to a high position. Therefore, the wheels 3 are raised except during the movement, and the total weight of the box 1 is transmitted to the ground by the support beams 12.

[0009]

[Method of use] Next, the method of use will be described.

<A> At the time of grounding. During use of the moving body, the lower surface of the support beam 12 is in contact with the ground. As described above, since the entire weight of the upper portion can be supported by the support beams 12 directly grounded to the ground, the box body 1 can maintain a stable support state even when used in a stadium or the like.

<B> At the time of insulation from ground. When moving, the box 1 is slightly pushed up by pressing down the wheel frame 32 at the same time as supplying compressed air to the inside of the box 1 to insulate it from the grounding state. If the air pressure supplied at this time is a pressure approximately equal to the weight of the box 1,
The pressure inside and outside the box 1 is equalized, so that no excessive pressure is applied to a part. Therefore, a simple structure using a relatively thin steel material can be adopted, and the height of the beam 12 can also be kept small. If the floor height can be kept to a minimum in this way, when used as a stadium, it is possible to secure a wide line of sight for spectators, and the utility value is high.

<C> When moving. By pressurizing the inside with a pressure equal to the load of the box 1, the load can be made theoretically zero. By driving the wheels 3, the box 1 in such a lightened state can be moved lightly. The compressed air supplied to the inside of the box 1 is blown out from the periphery of the box 1, and a flexible sealing material 2 is provided on the lower edge of the seal passage 2 on the outer peripheral portion.
Since 1 is attached, the inside airtightness can be maintained. Further, the compressed air that is ejected passes through the filter 22 provided on the outer wall of the seal passage 2 and is discharged, so that dust can be removed. When the vehicle reaches the predetermined position, the supply of the compressed air is stopped, the wheels 3 are raised, and the support beams 12 are landed to be used as a stadium or the like.

[0013]

As described above, the pneumatic moving body of the present invention has the following effects. <A> For example, when a large stage such as a soccer stadium is to be moved integrally, it has conventionally been necessary to lay a large number of rails. However, in the moving body of the present invention, there is no need to lay rails because the reaction force against the moving ground is small, and the pavement on the ground surface can be simple and very economical. <B> Since uniform pressure can be applied to the inside of the box body 1 to support it, the beam structure can be kept small and the floor height can be minimized. Therefore, when used as a stadium, it is possible to secure a wide line of sight for spectators, and the utility value is high. <C> Since the system moves by forming an air film between the base and the ground, the frictional resistance is small, and the device can move lightly with a small driving force. <D> At the time of landing, the lower surface of the support beam 12 is in contact with the ground. As described above, since the entire weight of the upper portion can be supported by the support beams 12 directly grounded to the ground, a stable support state can be maintained even when the support beams 12 are used in a stadium or the like. <E> Since all the driving devices and seals requiring maintenance are arranged on the outer peripheral portion of the box 1, it is easy to deal with them. <F> The wheel 3 does not receive a load except when it moves. Therefore, even if used for a long time, the rate of damage to the drive unit is low,
It is economical.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an embodiment of a pneumatic moving body of the present invention.

FIG. 2 is a sectional view of an outer peripheral portion.

FIG. 3 is an explanatory view of a lifting wheel 3;

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[Procedure amendment]

[Submission date] January 20, 1998

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

Continued on the front page (72) Inventor Yoshihiko Tamura 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. (72) Inventor Akihisa Yamamoto 8-21-1, Ginza, Chuo-ku, Tokyo Shares Inside Takenaka Corporation (72) Takahira Shimamura, Inventor 1-25-1 Nishi Shinjuku, Shinjuku-ku, Tokyo Inside Taisei Corporation (72) Inventor Masayoshi Nakai 8-2-1-1, Ginza, Chuo-ku, Tokyo Stock Company Takenaka Corporation

Claims (4)

[Claims] A main body is formed by a box having only a bottom surface opened, a support beam is arranged vertically and horizontally inside the box, a seal passage is arranged at an outer peripheral portion inside the box, and a seal passage is provided inside the seal passage. A pneumatic moving body with wheels that can move up and down, a seal material attached to the lower edge of the seal passage, and a pressurized air supply inside the box 2. The air moving body according to claim 1, wherein a vent is opened in the support beam so that the buoyancy of the pressurized air acts evenly on the inner surface of the entire box. 3. The air moving body according to claim 1, wherein a filter is attached to an outer wall of the seal passage. 4. The air moving body according to claim 1, wherein the lower surface of the support beam is in contact with the floor when the position of the vertically movable wheel is raised.