JPH08246691A - Movable floor pool - Google Patents

Abstract

PURPOSE: To obtain a multipurpose movable floor pool by standing a tabular movable floor having a plurality of air tanks on an underside and having a fluid path with a valve between upper and lower sections in the pool in a freely vertically inclinable adjustable manner. CONSTITUTION: A tabular movable floor 5 is stood in water and a large number of downward opening type air tanks 13 are installed to the lower section of the movable floor 5, projecting sections 13A are projected from the lower end sections of partition walls and the discontinuous escape of air is prevented while flowing water. When the movable floor 5 is lifted, each air tank 13 is supplied selectively with high-pressure air, and the air is elevated while changing the angles of inclination. When the movable floor 5 is lowered, on the other hand, each branch valve is controlled electrically and opened, and air is vented. The angle of inclination of the movable floor 5 is set within the range of ±30 deg., and a plurality of auxiliary engaging mechanisms are mounted among a pool wall and both end sections or the peripheral section of the movable floor 5 in both end sections or the peripheral section of the movable floor 5. The movable floor 5 is fixed lightly onto the pool wall, thus preventing the tilting and vertical movement of the movable floor 5 due to the change of load, the movement of the center of gravity, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable floor pool, and more particularly to a multipurpose movable floor pool utilizing buoyancy.

[0002]

2. Description of the Related Art Conventionally, movable floor pools have been constructed by enclosing air in a hollow top deck material so that the underwater weight is zero, and then fixing the movable floor to a chain inside the pool side wall, and driving the chain with an electric motor. Up and down, and in large pools also use telescopic struts. Without using buoyancy (without providing an air chamber), the chain in the side wall of the pool can be driven forward and backward by a motor to move the suspended movable floor up or down or push the parallel link provided under the movable floor with a hydraulic cylinder. What to pull. A hydraulic cylinder is embedded in the bottom of the pool to move water in and out through a water distribution pipe to raise and lower the movable floor. This method has a large support capacity of the movable floor. There is a method in which a small electric motor is used to drive the chain as described above via a commercially available chain block using a worm gear or the like having a large reduction ratio.

Among the above-mentioned conventional techniques, it is excellent in that buoyancy is positively used, but since the buoyancy itself cannot be directly adjusted, the lifting device cannot be omitted.

Therefore, it is inevitable that the structure in water (liquid) becomes complicated, and there is a problem in maintenance.

In the prior art, the movable floor is only moved vertically in a horizontal state, and no attempt has been made to incline the movable floor and utilize the gradient.

Therefore, as a result of earnest studies, the inventors of the present invention decided to provide a plurality of air tanks on the lower surface of a plate-like movable floor, and adjust the liquid level in each of these air tanks to enable vertical movement and tilting. It succeeded and came to complete this invention.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to provide a multipurpose movable floor pool in which the plate-like movable floor can be vertically moved and tilted or left stationary by positively utilizing buoyancy.

Another object of the present invention is to provide a multipurpose movable floor pool having a relatively simple structure, which can omit the mechanical or hydraulic lifting device as in the prior art.

Still another object of the present invention is to provide a multipurpose movable floor pool which is easy to modify the conventional fixed bed pool without major modification.

[0010]

According to the present invention, a plate-like movable floor having one or more air tanks on the lower surface and a fluid passage that can be opened and closed between the upper and lower surfaces is settled in or on the liquid by buoyancy. A movable floor pool (claim 1) characterized by the above, a movable floor pool (claim 2) according to claim 1, wherein the movable floor is a movable floor that can expand and contract according to the shape of the pool wall. A part or all is an expansion / contraction air tank.
A movable floor pool according to any one of claims 1 to 2 (claim 3), and an auxiliary support mechanism for the movable floor provided between the pool fixed floor and the movable floor. (30) ≦ 30 ≦ 30, where θ is the angle of inclination of the movable floor with the horizontal plane.
The movable floor pool (Claim 5) according to any one of claims 1 to 4, which is capable of inclining in a range of 0 °, the movable floor is stationary on liquid, the liquid is water, and The multipurpose movable floor pool (Claim 6) according to any one of claims 1 to 5 wherein the movable floor is a stage or a spectator seat, and the movable floor is a submerged stationary state, the liquid is water, and the movable floor is swimming. A multipurpose movable floor pool (Claim 7) according to any one of claims 1 to 5, which is a pool bottom.

The present invention will be described in detail below with reference to examples.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS All of FIGS. 1, 2, 3 and 4 are cross-sectional views of the first embodiment. FIG. 1 is a cross-sectional view in which a plate-shaped movable floor is horizontally placed in water, and FIG. 2 is a plate-shaped movable floor. Sectional view when the floor surface is exposed in the air and left standing on water, FIG. 3 is a sectional view when the plate-like movable floor is tilted and left standing in water, and FIG. 4 is a top view of the plate-like movable floor exposed in the air. It is a cross-sectional view that is inclined and placed on water.
FIG. 5 is a sectional view of an outdoor small theater or stadium in which the first embodiment shown in FIGS. 2 and 4 is combined, and FIG. 6 is a perspective view of FIG. 7 is an enlarged sectional view of the skirt-shaped seal, and FIG. 8 is an enlarged perspective view of the auxiliary locking mechanism. Also, in FIGS.
12 and 13 are cross-sectional views corresponding to FIGS. 1 to 5 of the second embodiment in which the air tank is an expansion / contraction air tank, and FIGS.
6, 17 and 18 are cross-sectional views corresponding to FIGS. 1 to 5, respectively, of the third embodiment in which the pool wall is non-vertical (inclined wall) and the plate-shaped movable floor is expandable and contractable. Further, FIG. 19 shows FIG. 5 or FIG.
FIG.

1-19, 1 is a concrete pool, 1A is a pool wall, 1B is a pool bottom, 2 is water, 2
A is the water surface, 3 is air, 5 is a plate-shaped movable floor, 6 is a high pressure air source, 7 is high pressure air piping, 8 is a main air valve, 9 is a branch air valve, 11 is a high pressure air hose, 12 is a high pressure air manifold, and 13 is a high pressure air manifold. Air tank, 15 is fluid passage, 16
Is a fluid valve, 18 is a skirt seal, 28 is a grandstand, 30 is a small pool, 30A is a small pool wall, 35 is an auxiliary locking mechanism, 36 is a rack, 37 is a locking rack, 38 is a push rod, 39 is a The hydraulic cylinder 40 is a sliding bearing.

In FIG. 1, a plate-like movable floor 5 is left standing in the water of a concrete pool 1. The plate-like movable floor 5 is provided with a large number of downward open type air tanks 13, 13 ... At its lower part. An overhanging portion 13A overhangs the lower end of each air tank partition wall to prevent water from discontinuously escaping while allowing water to pass therethrough. That is, the lower surface opening 1 for each air tank
3B is provided in the central portion as a rectangular shape that is long along the direction perpendicular to the tilt direction. Therefore, when both the X and Y directions are inclined, the opening 13B is provided at the center of the lower surface of each air tank.

Further, for each of the air tanks 13, 13, ..., A high pressure air source 6 is provided with a main air valve 8 which is a three-way valve, and a high pressure air pipe 7 and a high pressure air hose 11 are wound in a coil shape. Even if the size is large, it follows the movement stroke of the plate-like movable floor. The high-pressure air is supplied to each air tank from a high-pressure air hose 11 through a high-pressure air manifold 12 that crawls in the plate-shaped movable floor 5 and through a branch valve 9 which is an electromagnetic three-way valve of a branch pipe connected to each air tank. Has become. Since the branch valve 9 is also a proportional valve (or may be an ON-OFF type), it can be remotely operated (proportional control) by a switch (not shown) provided in a poolside control chamber.

Normally, if the high-pressure air is uniformly supplied to all the air tanks, the plate-like movable floor 5 can be raised horizontally or while keeping the inclination angle unchanged. However, if the high-pressure air is selectively supplied to each air tank, the inclination angle can be changed. The plate-shaped movable floor 5 can be raised.

On the other hand, when lowering the plate-like movable floor, each branch valve is electrically controlled to open to bleed air.
At this time, if selective air bleeding is performed for each air tank, it is possible to lower the plate-shaped movable floor 5 while changing the inclination of the air bleeding.

As described above, the driver performs these operations while watching the movement of the movable floor 5 in the poolside control room. In this case, it is possible to control one branch valve 9 of each air tank, but since it is complicated, it is easy to program the relationship between the water surface level in each air tank 13 and the tilt angle and level of the movable floor 5 in a simple manner. It is possible to simultaneously control the raising, lowering, and tilting of a plurality of movable floors 5, 5 ... Simultaneously by operating (for example, as a controller of a radio-controlled machine).

Therefore, a plurality of movable floors 5 and 5 provided with bleachers for a relatively long period in accordance with the music and images on the stage.
It is also possible to raise, lower, tilt, and interlock.

When the movable floor 5 is raised, lowered or tilted, if the movable floor is underwater as shown in FIGS. 1 and 3, it is often the case that water must be moved on the upper and lower surfaces of the movable floor.

In this case, a plurality of fluid passages 1 provided with fluid valves 16 in the middle provided near both ends of the movable floor 5.
A fluid such as water can be moved through 5, 15, .... At this time, the fluid valves 16, 16 ... Are electromagnetic two-way valves, and are simultaneously controlled together with the branch valves 9, 9. In addition, the branch valves 9, 9 ...
When bleeding air of 3 ..., the exhaust air is exhausted to the upper surface of the movable floor, but since bubbles are generated, if this is disliked, this is also the main air valve 8 which is also a three-way (electromagnetic) valve. You can bleed the whole air in the air by putting the exhaust port into the air.

The tilt angle θ (angle formed by the horizontal) of the tiltable movable floor is within a range of ± 30 °. This is because if the angle exceeds the upper and lower limit angles, there is a risk that air will escape from the air tank, and excessive stress may be applied to one of the auxiliary support mechanisms. When the inclination angle is ± (10 ° to 30 °), the moving side locking rack can be used as a drive pinion to assist the inclination.

In addition, a plurality of auxiliary locking mechanisms are provided between the pool wall and both ends or the peripheral edge of the plate-like movable floor in the present invention.

This is because if the movable floor 5 is supported only by buoyancy, the movable floor 5 may slightly tilt or move up and down due to changes in the load capacity and movement of the center of gravity. This is because this can be easily prevented.

However, since the main support of the whole is until now achieved by the buoyancy of a plurality of air tanks, these auxiliary locking mechanisms are strong enough not to drop even if the water below is drained if there is no load. .

In the auxiliary locking mechanism of this embodiment, as shown in FIG. 8, the rack 36 fixed substantially vertically to the pool wall and the hydraulic cylinder 39 (pneumatic or hydraulic cylinder A push rod 38 slidably attached to the movable floor 5 by a sliding bearing 40 that pushes and pulls an electric direct-acting screw and a clutch), and a locking rack 3 fixed to the tip of the push rod.
7, the locking rack 37 can be engaged with the rack 36 at any position in the vertical stroke of the movable floor to lock the movable floor to the pool wall.

The locking rack 37 may be a small diameter pinion, which may be fixed by a ratchet or a pin.

A rubber skirt-shaped seal 18 is stretched around the movable floor peripheral portion (see FIG. 7). The tip of the skirt-shaped seal 18 contacts the wall surface of the pool, and as the pressure increases just as with the oil seal, the surface pressure on the wall of the tip edge increases to prevent water (fluid) from overflowing from below to above. Therefore, the skirt-like seal functions in the direction of floating the movable floor together with the buoyancy of the air tank, and thus plays a role of working on the safety side.

In the vicinity of the auxiliary locking mechanism 35, it is necessary to devise a skirt-shaped seal. For example, means such as making a watertight small hole through the push rod portion of the locking rack in the skirt-shaped seal may be taken. (Example 1) While comparing with FIGS. 1-6 (Example 1) below, FIGS.
(Embodiment 2) and FIGS. 14 to 18 (Embodiment 3) will be described.

9 to 13 show the expansion / contraction air tank made of rubber or plastic (laminated and reinforced) for each air tank as described above (Example 2). Each expansion / contraction tank has a full size of 14 and about 1 / 2 size is 14A, '
About 1/4 size is displayed in 14B and about 1/5 size is displayed in 14C.

These expansions and contractions are the same as those of the fixed air tank, but the expansion and contraction air tanks do not cause air in the air tanks to escape as bubbles, and when the movable floor 5 lands on the pool bottom, it is buffered. It is convenient because it plays the role of wood (see FIG. 9).

14 to 18 show the case where at least one of the concrete pool inner walls is not vertical but has an inclination (Example 3). In this case, since the cross-sectional length of the movable floor fluctuates, a part of the movable floor has a plurality of coil springs 46, 46.
... Or movable floors 45, 45 that are extensible and expandable by an air cylinder.

In this case, the locking mechanism 35 can include a wide pinion gear. The movable floors 45, 45
... may be on one side only.

These movable floors can be applied to a pool having a plurality of sloped walls having the same or different slopes as long as the stroke design is well done.

FIG. 6 is a perspective view of a stadium or a small theater in which a movable floor 5 vertically moving in a small pool in the center is surrounded by movable floors 5 with inclined seats on both sides. In the application example of FIG. 6, the auxiliary locking mechanisms on both sides of the central movable plate 5 are not shown. These can be used in, for example, tennis, basketball, ping-pong, wrestling, sumo, fashion show, Noh, Kyogen, etc. In addition, a plurality of shallow pools can be used, and one pool can be used as an adult pool, a child pool, a swimming pool, or a diving pool. Furthermore, as shown in FIG. 19, the tiltable movable floor with seats can be of a type that surrounds the horizontal movable floor (stage) in the central part from all sides. Although it becomes more complicated, it is also possible to make a polygonal or amphitheater. In these cases, it is desirable for safety that the joint between the tilting movable floors with seats is a flexible joint made of rubber.

[0036]

By carrying out the present invention, all of the above objects can be achieved.

That is, by positively utilizing buoyancy, it is possible to provide a multipurpose movable floor pool in which the plate-like movable floor can be vertically moved, tilted, or left stationary.

Further, it is possible to omit the mechanical or hydraulic lifting device as in the conventional example, and it is possible to provide a multipurpose movable floor pool having a relatively simple structure.

Furthermore, it is possible to provide a multipurpose movable pool which can be easily modified from the conventional fixed bed pool without major modification.

[Brief description of drawings]

FIG. 1 is a sectional view of a first embodiment.

FIG. 2 is a sectional view of the first embodiment.

FIG. 3 is a sectional view of the first embodiment.

FIG. 4 is a sectional view of the first embodiment.

FIG. 5 is a sectional view of an outdoor small theater or stadium in which the first embodiment shown in FIGS. 2 and 4 is combined.

FIG. 6 is a perspective view of FIG.

FIG. 7 is an enlarged sectional view of a skirt-shaped seal.

FIG. 8 is an enlarged perspective view of an auxiliary locking mechanism.

[FIG. 9] Embodiment 2 in which the air tank is a scaling air tank
Sectional view corresponding to FIG. 1 of FIG.

FIG. 10 is a cross-sectional view corresponding to FIG. 2 of the second embodiment in which the air tank is an expansion / contraction air tank.

FIG. 11 is a cross-sectional view corresponding to FIG. 3 of the second embodiment in which the air tank is an expansion / contraction air tank.

FIG. 12 is a cross-sectional view corresponding to FIG. 4 of the second embodiment in which the air tank is an expansion / contraction air tank.

FIG. 13 is a cross-sectional view corresponding to FIG. 5 of the second embodiment in which the air tank is an expansion / contraction air tank.

14 is a cross-sectional view corresponding to FIG. 1 of Example 3 in which the pool wall is non-vertical (sloping wall) and the plate-shaped movable floor is expandable / contractible.

FIG. 15 is a cross-sectional view corresponding to FIG. 2 of Example 3 in which the pool wall is non-vertical (sloping wall) and the plate-shaped movable floor is expandable and contractable.

16 is a cross-sectional view corresponding to FIG. 3 of Example 3 in which the pool wall is non-vertical (sloping wall) and the plate-shaped movable floor is expandable / contractible.

FIG. 17 is a cross-sectional view corresponding to FIG. 4 of Example 3 in which the pool wall is non-vertical (sloping wall) and the plate-shaped movable floor is expandable and contractable.

18 is a cross-sectional view corresponding to FIG. 5 of Example 3 in which the pool wall is non-vertical (sloping wall) and the plate-shaped movable floor is expandable and contractable.

19 is a plan view of FIG. 5 or FIG.

[Explanation of symbols]

 1 Concrete pool 1A Pool wall 1B Pool bottom 2 Water 2A Water surface 3 Air 5 Plate movable floor 6 High pressure air source 7 High pressure air piping 8 Main air valve 9 Branch air valve 11 High pressure air hose 12 High pressure air manifold 13 Air tank 15 Fluid passage 16 Fluid valve 18 Skirt-like seal 28 Grandstand 30 Small pool 30 Small pool wall 35 Auxiliary locking mechanism 36 Rack 37 Locking rack 38 Push rod 39 Hydraulic cylinder 40 Sliding bearing

Claims (7)

[Claims] 1. A plate-like movable floor having one or more air tanks on the lower surface and a fluid passage that can be opened and closed between the upper and lower surfaces is movably set in or on the liquid by buoyancy. Movable floor pool. 2. The movable floor pool according to claim 1, wherein the movable floor is a movable floor that can expand and contract according to the shape of the pool wall. 3. The movable floor pool according to claim 1, wherein a part or all of the air tank is an expansion / contraction air tank. 4. The movable floor pool according to claim 1, wherein the pool wall is provided with an auxiliary locking mechanism for the movable floor. 5. The movable floor can be tilted within a range of -30 ° ≤θ≤30 °, where θ is an angle of inclination with a horizontal plane. Movable floor pool as described. 6. The multipurpose movable floor pool according to claim 1, wherein the movable floor is a stationary state on the liquid, the liquid is water, and the movable floor is a stage or an audience seat. 7. The movable floor is stationary in the liquid, the liquid is water, and the movable floor is the bottom surface of the swimming pool.
The multipurpose movable floor pool according to claim 5.