JP2516747Y2 - Movable seat device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a movable seat device used in a multipurpose ball field or the like.

[Prior Art] FIGS. 8 and 9 show plan views of a conventional multipurpose ball game field. Figure 8 shows the result of using the same stadium as a baseball field
The figure shows the case where the same stadium is used as a football stadium. In the figure, 1 is a multi-purpose ball stadium, 2X is a conventional movable seat block with bleachers on it, 3 is a fixed seat, 3 is a fixed seat, and 4 is the center of the game. It's an arena. In this ball field, the position of the movable seat block 2X is changed according to the type of the competition held in the arena 4. The movable seat can be moved in block units.

The conventional movable seat block 2X is used for winding and sending out a wire rope using a winch on the rail provided on the surface of the arena 4 along the inner circular arc of the fixed seat portion which is annularly formed. While being given traction and braking power,
It had been moved horizontally to a position corresponding to the ball game performed in the arena.

[Problems to be solved by the device]

Since the conventional movable seat block has a structure that moves on rails laid in advance on the arena surface, it is not always possible to move the movable seat block to the most suitable position depending on the type of competition. For example, even if the movable seat block is located at the most suitable position for use as a baseball field as shown in FIG. 8, the movable seat block is located along the rail in the football game as shown in FIG. However, even if it was moved, it could only be moved to a position away from the field and could not be brought close to the field. Therefore, the audience was dissatisfied.

The present invention is intended to provide a movable seat that can be moved to any position.

[Means for solving the problem]

The present invention solves the above-mentioned problems, and in a movable seat device including a movable seat block structure having a plurality of spectator seats in the upper part and a device for moving the structure, a wheel is provided at the bottom. The movable seat block structure is provided rotatably around a vertical axis connected to the movable seat block structure at a substantially alternating position with a plurality of columns forming a part of the movable seat block structure. A plurality of traveling drive wheel units, a wheel lifting device provided in each traveling drive wheel unit, a wheel drive device provided in each traveling drive unit, a wheel braking device provided in each traveling drive wheel unit, each traveling drive wheel A traveling drive wheel unit station provided between each traveling drive wheel unit and the movable seat block structure so as to drive the unit to rotate around the vertical axis with respect to the movable seat block structure. The movable seat block includes a ring device, a wheel lifting device, a wheel driving device, a wheel braking device for each of the above units, and a hydraulic power source and a hydraulic control device that are connected to the traveling drive wheel unit steering device to operate them in a coordinated manner. When moving the structure, the wheels are lowered and landed, the lower ends of the columns are floated from the ground, and the wheels are supported by the movable seat block structure to move or move the movable seat block structure in any direction. The present invention relates to a movable seat device, characterized in that, when the movable seat block structure is stationary and fixed, the wheels are raised and the lower ends of the columns are landed to support and fix the movable seat block structure.

[Action]

The movable seat device of the present invention supports the entire block by landing a plurality of columns when the spectator is seated on the spectator seat provided at the upper part of the movable seat block.

When moving the movable seat block structure, the wheels of the traveling drive wheel unit are landed by the lifting device, the entire block is lifted and lifted from the ground, and the steering device determines the direction of the wheels. The device drives the wheels to move the entire movable seat block.

The movable seat block in the present invention does not move on the traveling rail, but can move on a plane in any direction by a plurality of wheels.

〔Example〕

1 is a front view of an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a bottom view of FIG. In the figure, 2 is a movable seat block, 2a is a bleacher seat provided on the block, 5 is a pillar which is a part of the structure of the block, and 6 is a drive wheel attached to the structure of the block. It is a unit. This movable seat block does not travel on rails, but travels on the arena surface by rubber wheels provided on the drive wheel unit.

FIG. 4 is a side view of the drive wheel unit 6, and FIG. 5 is a plan view of the unit. In the figure, 7 is a traveling drive motor, 8 is a rubber wheel, 9 is a push-up jack, 10 is a steering rack and pinion, and 11 is a steering jack.

As shown in FIG. 3, columns 5 and drive wheel units 6 are arranged substantially alternately on the lower surface of the movable seat block of this embodiment. The pillar 5 is a part of the structure,
When the bleachers 2a are used for seating the spectators, the bottom surface of the stanchions lands and supports the total weight of the movable seat block and the spectators and the like added thereto.

When the movable seat block is moved,
In the drive wheel unit 6 shown in the figure, the push-up jack 9
Then, the rubber wheel 8 is landed and the entire movable seat block 2 is floated. When the jack-up is finished, the push-up jack 9 is held by the pilot check valve and the solenoid valve shown in the hydraulic circuit diagram described later, and the movable seat block becomes movable. Next, when the traveling drive motor 7 is rotated, the wheels 8 are rotated and the movable seat block is moved according to the direction of the wheels.
The moving direction is performed by operating the steering jacks 11 provided on the respective drive wheel units and changing the direction of the rubber wheels 8 by the steering rack and pinion 10. After moving the movable seat block to the position according to the type of competition by the above operation, both the valves holding the push-up jack 9 are released, and the push-up jack is lowered to lower the support column 5. The landing is performed, and the movable seat block is supported by the same pillar, and the fixed installation after moving the movable seat block is completed.

In this way, the movable seat unit is moved from the position when it is being used as a baseball field, that is, the same position as in FIG. 8, so that the movable seat unit is brought close to the field during the football game. FIG. 4 is a plan view of the multi-purpose stadium when the are arranged. Thus, compared to the conventional case (FIG. 9), since the movable seat unit is arranged at the advanced position, the spectator can watch at a better position.

FIG. 7 is a system diagram of a hydraulic circuit for operating the above-mentioned respective parts. This is necessary for simultaneously operating the jacks and motors, which are provided in plurality, simultaneously and in a coordinated manner. In the figure, 9 is a plurality of pushing jacks, 11 is a plurality of steering jacks, 12 is a plurality of traveling drive motors, and 13 is a braking jack. The reference numerals other than the above are cited in the middle of the description, and the details of the operation will be described below.

First, start the engines 14 and 15 to prepare for operation. At this time, the pumps 16, 17 and 18 directly connected also rotate and discharge oil, but these oils respectively flow control valve 4
It is unloaded by 0, 41, 42 and returns to the tank 19.

The ascending operation by the push-up jack 9 will be described.
In the main pump line a, the solenoid valve 20 is energized to conduct, then the solenoid valve 22 is energized to the parallel port, the solenoid valve 25 is energized as it is, and the solenoid valve 28 is energized to pass through the flow rate adjusting valve 26. The solenoid valve 29 remains in conduction and leads to the push-up jack cylinder line b. At this time, the solenoid valve 33 of the auxiliary pump line k is energized to conduct, the solenoid valve 34 is energized to become a cross port, and the pilot check valve
36 is opened and hydraulic oil flows to the cylinder side of the push-up jack 9, the push-up jack 9 extends and the movable seat supported by this rises. At this time, the hydraulic oil on the rod side pushed out passes through the push-up jet line c, passes through the line filter 38 and the counter balance valve 39, passes through the tank port of the excited solenoid valve 22, and returns to the tank 19. When the push-up jack 9 is raised to a predetermined position, the solenoid valve is released from the excitation by a separate electric signal, and the spring force returns to the state shown in the figure to hold the hydraulic oil without backflow. At this time, when the solenoid valve 34 of the pilot check line h returns to the parallel port, the hydraulic oil having a pressure applied by the accumulator 44 acts on the closing side (rod side) of the pilot check valve 36 to instantly close the pilot check valve 36.

Next, the descending operation of the push-up jack 9 will be described.
In the main pump line a, the solenoid valve 20 is excited and conductive,
The cross port of the solenoid valve 22 is energized, the hydraulic oil is sent to the rod side of the push-up jack through the push-up jack line c, and the solenoid 33 of the auxiliary pump line is energized on the cylinder side of the push-out jack. Then, the cross port of the solenoid valve 34 is energized and conducted, the pilot check valve 36 is opened and the push-up jack cylinder line b
The solenoid valve 29 is energized, the solenoid valve 28 is energized as it is, and the solenoid valve 25 is energized while the speed is controlled by the flow rate adjusting valve, and the tank 19 is passed through the cross port of the energized solenoid valve 22. Then, the push-up jack 9 contracts, and the supported movable seat 2 descends. When the push-up jack 9 descends to a predetermined position, the excitation of the solenoid valve is released by a separate electric signal, and the solenoid valve is returned to the state shown in the figure like when the rise and stop, and is held without the backflow of hydraulic oil.

Next, the traveling drive motor 12 will be described. The main pump line a is energized by the solenoid valve 22 and is controlled by the flow rate adjusting valve 26, and the solenoid valve 27 is energized and is energized, leading to the travel drive motor forward line d.
Then, the intake side and the discharge side of the traveling drive motor 12 are switched by exciting the parallel port and the cross port of the solenoid valve 30, respectively, and the traveling drive motor 12 rotates in the forward and reverse directions to enable forward and backward operation of the movable seat. Since the hydraulic motor continues to idle due to inertial force during braking, it works as a hydraulic pump, and there is a case where the refueling side becomes negative pressure and is damaged.
In the present embodiment, when the auxiliary pump 18 is used for braking, the solenoid valve 32 is excited and conducted to replenish the oil to the oil replenishing line i to solve the problem caused by the negative pressure, and the sequence valve 37 is operated to discharge the oil to the discharge side. Consideration is given to build pressure resistance and brake inertial inertia.

The brake will be described. In addition to braking the rotation of the motor described above, it incorporates a brake jack 13 that activates the desk gripping device to mechanically activate the brake. Solenoid valve from slave pump line j
By exciting 23, the brake jack line g is conducted, and by switching the excitation of the parallel port and the cross port of the solenoid valve 31, the brake jack 13 expands and contracts to open and crimp the brake.

Next, steering will be described. When the solenoid valve 24 is excited from the slave pump line j, it is conducted to the steering jack line f. By switching the excitation of the parallel port and the cross port of the solenoid valve 35, the steering jack 11 is arbitrarily expanded and contracted, and the steering jack 11 is racked. The running rubber wheels 8 connected by the pinion 10 are arbitrarily rotated right and left to steer the movable seat forward and backward, left and right, and in a curved direction.

In this embodiment, the case of hydraulic drive has been described as an example.
A similar function can be obtained by an electric system using a combination of an electric motor and an electric screen scrubber.

As described in detail above, in the movable seat of this embodiment, the traveling drive wheel unit in which the wheels, the driving device, the steering device, and the jack-up device are incorporated in the lower part of the movable seat block is arranged almost alternately with the support columns. The movable seat can be moved and placed at an optimum position for a ball game.

[Effect of device]

The movable seat device of the present invention has a structure of a movable seat block having a plurality of spectator seats above it, a wheel, a driving device, a steering device, and a lifting device, and a part of the structure. It is equipped with a plurality of traveling drive wheel units attached to the lower part of the same structure at positions almost alternating with a plurality of pillars that make up the structure, so that the pillars support and move the movable seat block when using the bleachers. Sometimes, the traveling drive wheel unit can move the movable seat block to an arbitrary position, so that the audience can be satisfied.

[Brief description of drawings]

FIG. 1 is a front view of a movable seat block according to an embodiment of the present invention,
2 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is a bottom view of FIG. 1, FIG. 4 is a side view of the drive wheel unit of the above embodiment, and FIG. 5 is a plan view of the unit. FIG. 6 is a plan view of a multipurpose ball game field using the apparatus of the above embodiment, FIG. 7 is a system diagram of the hydraulic system of the above embodiment, FIG. 8 is a plan view of a conventional multipurpose ball field, and FIG. It is a top view in other states of the conventional ball game field. 1 ... Multi-purpose ball stadium, 2 ... Movable seat block, 3 ... Fixed seat, 4 ... Arena, 5 ... Support pillar, 6 ... Traveling drive wheel unit, 7 ... Drive motor, 8 ... Rubber wheel , 9
...... Push up jack, 10 ...... Rack pinion for stearin, 11 ...... Jack for steering.

Claims (1)

(57) [Scope of utility model registration request] 1. A movable seat device including a movable seat block structure having a plurality of spectator seats in an upper part thereof and a device for moving the structure, wherein the movable seat block structure has wheels at a lower part thereof. A plurality of traveling drive wheel units rotatably supported around a vertical axis connected to the movable seat block structure at positions substantially alternating with a plurality of columns forming a part of the movable seat block structure, A wheel lifting device provided in each traveling drive wheel unit, a wheel driving device provided in each traveling drive wheel unit, a wheel braking device provided in each traveling drive wheel unit, a traveling seat block structure for each traveling drive wheel unit On the other hand, the traveling drive unit steering device provided between each traveling drive wheel unit and the movable seat block structure so as to be rotationally driven around the vertical axis, and each of the above units. Wheel moving device, a wheel driving device, a wheel braking device, and a traveling drive wheel unit equipped with a hydraulic power source and a hydraulic control device that actuate them in a coordinated manner to move the movable seat block structure. Occasionally, the wheels are lowered and the lower ends of the columns are floated above the ground to support the movable seat block structure by each wheel to move the movable seat block structure in an arbitrary direction or change its direction. A movable seat device for supporting and fixing the movable seat block structure by raising the wheels and landing the lower ends of the columns when stationary.