JPH10231634A - Moving stand for stadium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decrease the moving weight of a moving stand remarkably, to miniaturize a driving source at the time of slewing movement, to improve the controllability of a moving place, to conduct fixation surely while reducing labor for fixation and the release of fixation, and to prevent the formation of irregularities being a hindrance to walking and a sport. SOLUTION: A support-weight reducing means 4 reducing support weight by ejecting air, a guide means 5 setting the direction of movement of a moving stand 2, and driving wheels rolled on a ground floor 3 are disposed to the lower section of the moving stand 2. The top faces of guide rails are set so as to be placed at the same level as the surface of the ground floor 3 in falling at the time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art In a multi-purpose stadium such as baseball and soccer or an indoor stadium, a technical example 1: Japanese Patent No. 25300
No.72 “Circular Stadium Moving Stand”, Technical Example 2:
As disclosed in Japanese Utility Model Laid-Open Publication No. Sho 53-120833, "Equipment with Moving Seats", Technical Example 3: Japanese Patent Laid-Open Publication No. 59-091272, "Equipment for moving a stand in a stadium," Some of them can be moved.

[0003] Focusing on the stand moving technology in these technical examples, in Technical Example 1, a guide rail is laid on the ground floor of a stadium, and the stand is supported by a plurality of pneumatic tires. , And the setting of a fixed state and a movable state of the stand portion is performed by raising and lowering a plurality of manual jacks. In the technical example 2, a rail is provided in a groove dug in the ground, and the wheel is supported by the rail to turn the seat. In the third technical example, a guide portion is provided on a fence of a fixed stand, and a movable stand supported by wheels is turned.

[0004]

However, the above technical examples have the following unsolved problems. Since the moving stand portion is heavy, even if the moving stand portion is supported by wheels or the like, a large or a large number of driving sources for compensating for rolling friction resistance and the like during turning movement are required. When a plurality of manual jacks are used to raise and lower the mobile stand, the labor involved is enormous. When the rails are provided in the grooves, the grooves and the rails that are exposed when the movable stand is moved become obstacles for walking. Even when the guide portion is provided on the fence of the fixed stand, the movement of the movable stand portion exposes the guide portion, which may impair the aesthetic appearance and hinder the game.

[0005] The present invention has been made in view of such circumstances, and achieves the following objects. 1) To significantly reduce the moving weight of the moving stand. 2) To reduce the size of the driving source during the turning movement. 3) To enhance the controllability of the moving position of the mobile stand. 4) Securely secure the mobile stand. 5) To reduce the labor for fixing and releasing the mobile stand. 6) Eliminate the formation of irregularities that hinder walking and competition.

[0006]

[MEANS FOR SOLVING THE PROBLEMS] Below the moving stand,
A support weight reducing means for reducing the supporting weight of the moving stand by blowing air to the ground floor, a guide means for setting a moving direction of the moving stand, and a ground supporting a part of the weight of the moving stand. The technology in which drive wheels rolling on the floor are provided is adopted.
In the guide means, a guide groove formed on the ground floor, a guide rail arranged to be able to move up and down in the guide groove, and a pressure contact with a side surface of the guide rail attached to a lower portion of the movable stand to perform positioning. And a guiding wheel. The upper surface of the guide rail at the time of descending is set to the same level as the surface of the ground floor, and a technique is adopted in which the supporting weight reducing means lands on the ground floor when not in operation and fixes the movable stand. The drive wheels are in contact with the ground floor by the resilience, and the wheels themselves are elastically deformed like urethane rubber or the like, and the resilient members such as coil springs are interposed to provide resilience. Alternatively, a technology in which a counterweight is disposed in place of the resilient member and the drive wheel always contacts the ground floor is also applied.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a stadium moving stand according to the present invention will be described below with reference to FIGS.
It will be described based on. In the figure, S is a stadium, 1 is a fixed stand, 2 is a mobile stand, 3 is a ground floor, 4
Is a support weight reducing means (air bearing), 5 is a guide means, 6 is a drive wheel, and 7 is a power supply means.

The stadium S is, for example, an all-weather dome stadium. It has a function of switching to a baseball ground B, a soccer ground F or the like according to the purpose.

The moving stand 2 is formed in a bow shape as a whole, and as shown in FIGS. 2 and 3, a supporting frame 21 made of steel or the like having excellent strength, and an upper portion of the supporting frame 21. Attendant seats 22 arranged in steps
An access passage 23 arranged at the front or middle of the audience seat 22, a rubber mat 24 for fence arranged in front of the support frame 21, a dugout 25, a photographer's seat 26,
It has an entrance 27 and the like.

In addition, while being supported by the lower part of the support frame 21, the ground floor 3
Weight reduction means 4 for slightly lifting the movable stand 2 by blowing air to the movable stand 2
Guide means 5 for setting the moving direction of the moving stand 2 and the ground floor 3 while supporting a part of the weight of the moving stand 2.
And a drive wheel 6 that rolls on the vehicle.

As shown in FIGS. 1 to 7, the support weight reducing means 4 includes an air compressor 41 incorporated in a support frame 21 for generating pressurized air, and a pressurized air generated by the air compressor 41. An air supply pipe 42 for transferring air, and a support frame 2 connected to the air supply pipe 42.
An air cup 43 which is attached downward to the first support leg 21a and is brought into contact with the surface of the ground floor 3 at a plurality of locations; And a diaphragm 44 for equalizing the jet distribution.

The guide means 5 is arranged along the arc shape of the fence 11 and is shown in FIGS.
10, a guide groove 51 formed in the ground floor 3, a guide rail 52 arranged in the guide groove 51 so as to be able to move up and down, and an actuator for driving the guide rail 52 to move up and down. 53 and support frame 2
And a pair of guide wheels 54 which are attached to the lower support leg 21a and pressed against the side surface of the guide rail 52 to perform positioning in the radial direction of rotation.

The operating range of the actuator 53 is set so that the upper surface of the guide rail 52 of the guide means 5 is at the same level as the surface of the ground floor 3 when descending.

In addition, an accommodating groove 55 is formed on the ground floor 3, and an actuator 53 is disposed via a liner 57 in a U-shaped groove-shaped block 56 made of concrete or the like loaded in the accommodating groove 55. A step board 59 in which a guide groove 51 is formed is provided in a space surrounded by the liner 57 via a support base 58, and the step board 59 is fixed to the U-shaped groove block 56 and the liner 57 with bolts 59a or the like. Accordingly, the slit s between the guide groove 51 and the guide rail 52 is set to a small gap such that the guide rail 52 can move up and down, and the gap g between the edge of the accommodation groove 55 and the tread plate 59 is also set to a small gap. When the guide rail 52 is set at the lower position, the surface of the ground floor 3 and the upper surface of the step plate 59 of the guide rail 52 are set to be at the same level. .

The drive wheel 6 is formed of a material which elastically deforms itself such as urethane rubber.
Rolling on the ground floor 3 so as to support only a part of the weight of the movable stand 2 causes the movable stand 2 to turn horizontally. As shown in FIG. 9 and FIG. 11, the support frame 21 is attached to the support leg 21 a of the support frame 21 so as to be vertically swingable by a rotation pin 61 and to be rollable in a direction along the guide rail 52. Further, the drive wheel 6 is provided with
Is set so as to always maintain the state of contact with the ground floor 3, and is rotated by the traveling motor 63. As the pressing means 62, as shown in FIG. 9, for example, a means utilizing the weight of a counterweight is applied.

The power supply means 7 supplies power for operating the air compressor 41 in the support weight reducing means 4, the actuator 53 in the guide means 5, and the running motor 63. A groove is formed along the direction, and a sliding brush is brought into contact with a power supply rail arranged in the groove to make an electrical connection, and an electric cable or the like is pulled out through a normally closed slit in the rubber mat for fence. In this way, power is supplied without impairing electrical insulation and safety.

Hereinafter, a case where the mobile stand 2 and the ground floor 3 are switched according to the purpose of the game will be described.

[Reduction of Supporting Weight of Moving Stand] When the supporting weight reducing means 4 is operated to supply pressurized air generated by the air compressor 41 to the inside of the air cup 43 via the air supply pipe 42. Buoyancy is generated according to the air pressure and the cross-sectional area of the air cup 43, and the moving stand 2
Is raised, and air is blown out from the edge of the diaphragm 44 to be in an equilibrium state. That is,
When the air cup 43 and the diaphragm 44 are separated from the ground floor 3, the apparent weight of the moving stand 2 is reduced, and the moving stand 2 is easily moved. The state of contact with the ground floor 3 is maintained.

[Rotating Movement of the Moving Stand] When the driving wheel 6 is rotated by the operation of the traveling motor 63 while the supporting weight reducing means 4 is maintained in operation, the guide rails 52 of the guide means 5 cause the guide wheels 52 to rotate. The guide 54 is guided, and the movable stand 2 is turned in the laying direction of the guide rail 52. In this case, when the air cup 43 and the diaphragm 44 float from the ground floor 3, the driving force required to move the movable stand 2 mainly includes the guide wheels 54.
In addition, the driving wheel 6 has a small value corresponding to the rolling frictional resistance, and the moving direction is set by the guide means 5, so that the turning movement is performed smoothly.

[Fixation of Moving Stand] After moving the moving stand 2 to a required position (for example, a state shown by a solid line in FIG. 1), the operation of the support weight reducing means 4 is stopped, and the air cup 43 is stopped. When the supply of pressurized air to the air supply is stopped, the air cup 43 comes into contact with the ground floor 3 due to the disappearance of the buoyancy, and the mobile stand 2 comes into a landing state. At this time, most of the weight of the movable stand 2 will be supported by the plurality of air cups 43, and the rest will be supported by the guide wheels 54. For this reason, the supporting weight reducing means 4 bears the function as an outrigger when it is not operated, and the movable stand 2 is fixed.

[Movement Stand Swiveling Direction] As shown by arrows in FIG. 1, the pair of movable stands 2 are simultaneously swiveled in one direction, for example, to switch positions. Therefore, when the moving stand 2 is turned in accordance with the baseball ground B or the soccer ground F, the traveling distance between the pair is different. There is a relationship in which the traveling distance of the shorter traveling distance is increased, and the traveling distances of the pair of moving stands 2 are averaged by repeating the turning movement a plurality of times.

[Other Embodiments] The stadium moving stand of the present invention includes the following technology. 1) The actuator 53 of the guide means 5 is an electric motor, a hydraulic cylinder, an air cylinder, or the like. 2) The pressing means 62 added to the driving wheel 6 is a resilient member such as a coil spring that presses down the driving wheel 6 by a resilient force. 3) An arbitrary number of mobile stands 2 are installed. One or an arbitrary number shall be fixed stands.

[0023]

The following effects can be obtained by applying the stadium moving stand according to the present invention. (1) When the supporting weight reducing means is operated, air is blown to the ground floor to generate buoyancy, so that the supporting weight during the movement of the moving stand can be significantly reduced, and the moving workability can be improved. (2) By reducing the supporting weight of the moving stand, it is possible to reduce the size of the driving source during the turning movement. (3) Based on the reduction in the weight supported by the mobile stand, the maneuverability can be enhanced and the position setting accuracy of the mobile stand can be improved. (4) The operation of the support weight reducing means can be stopped, and the movable stand can be securely and promptly fixed. (5) By moving and stopping the mobile stand,
By setting the movable state and the fixed state, the labor at the time of moving and at the time of fixing can be reduced. (6) The driving equipment can be simplified by rolling on the ground floor with the driving wheels while supporting a part of the weight of the moving stand. (7) The guide rail of the guide means is raised and lowered to be accommodated on the ground floor, and the upper surface of the guide rail at the time of descent is set to the same level as the surface of the ground floor, so that walking and competition from the ground floor are hindered. The formation of unevenness that causes the above can be eliminated.

[Brief description of the drawings]

FIG. 1 is a plan view showing one embodiment of a moving stand of a stadium according to the present invention.

FIG. 2 is a front sectional view showing one embodiment of a moving stand of a stadium according to the present invention.

FIG. 3 is a view taken along line CC of FIG. 1;

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

FIG. 5 is a view taken along the line EE in FIG. 1;

FIG. 6 is a front sectional view of the support weight reducing unit shown in FIG. 1;

FIG. 7 is a plan view of the air cup portion shown in FIG.

FIG. 8 is a front view of the drive wheel shown in FIG.

FIG. 9 is a side view of the drive wheel portion shown in FIG.

FIG. 10 is a front sectional view of the guide means shown in FIG. 1;

FIG. 11 is a layout view of a support weight reducing unit, a guide unit, and drive wheels shown in FIG.

[Explanation of symbols]

 S Stadium B Baseball ground F Soccer ground 1 Fixed stand 2 Moving stand 3 Ground floor 4 Support weight reduction means (air bearing) 5 Guide means 6 Drive wheel 7 Power supply means 11 Fence 21 Support frame 21a Support leg 22 Audience seat 41 Air compressor 42 Air supply piping 43 Air cup 44 Diaphragm 51 Guide groove 52 Guide rail 53 Actuator 54 Guide wheel 59 Tread plate 62 Depressing means 63 Running motor s Slit g Gap

Claims (5)

[Claims] 1. A supporting weight reducing means (4) for reducing the supporting weight of a movable stand by blowing air to a ground floor (3) below the movable stand (2).
And a guide means (5) for setting a moving direction of the moving stand. 2. A driving wheel (6) that rolls on a ground floor (3) while supporting a part of the weight of the moving stand (2) is provided below the moving stand (2). The moving stand of a stadium according to claim 1, wherein The guide means (5) includes a guide groove (51) formed in the ground floor (3), a guide rail (52) arranged in the guide groove so as to be movable up and down, and a moving stand (5). 3. The moving stand of a stadium according to claim 1, further comprising: a guide wheel (54) attached to a lower portion of (2) for pressing against a side surface of the guide rail to perform positioning. 4. The moving stand of a stadium according to claim 3, wherein the upper surface of the guide rail (52) when descending is set at the same level as the surface of the ground floor (3). 5. The device according to claim 1, wherein the supporting weight reducing means (4) lands on the ground floor (3) when not in operation to fix the moving stand (2). Stadium moving stand.