JPH046362B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a chair storage type floor device used for spectator seats, stages, etc. of gymnasiums, halls, etc.

[Conventional technology]

In recent years, for multi-purpose uses such as gymnasiums and halls, multiple floor stands are placed at the same height as the floor of the building or the stage during normal times, and when necessary, each floor stand is individually raised using a push-up mechanism such as a jack or lift. There are elevating floor devices that can be pushed up to appropriate heights to form terrace-like (stair-like) seats or stages, and platforms that are installed on interconnected carts, in other words, as movable platforms. During normal times, each movable floor table can be moved one after another to the bottom of the rear platform, shortened into a vertical shelf, and stored on the wall of a building, etc. When necessary, each movable platform can be moved forward one after another to create a tiered structure. Telescopic movable floor devices that can be extended to serve as spectator seats have come into widespread use.

Furthermore, in the telescopic movable floor device,
As shown in Publication No. 1555 and Japanese Utility Model Publication No. 58-112159, etc., foldable or automatic flip-up chairs can be placed on the upper floor of each platform so that the audience can sit and watch comfortably. More and more things have been installed.

[Problem that the invention seeks to solve]

By the way, the above-mentioned floor device had the following problems. That is, first of all, in the former elevating floor device,
In normal times, each platform is lowered to the same height as the building floor or stage to form the floor surface for various competitions and performances, so chairs, etc. are installed on the floor surface above each platform. I can't put it down. For this reason, when each platform is raised in a tiered manner to form a viewing seat, the audience must sit directly on the floorboards on each platform, which is extremely uncomfortable. If you really want to use chairs, you have to bring and set up chairs separately prepared on each floor step, and of course you have to put each chair away in a separate storage room after use, which is very troublesome. be. Note that even when used for stage use, the above is the same; chairs are not required when performing performances such as chorus by standing on each floor platform in the form of tiers, but chairs are separately prepared for orchestral performances etc. It was a hassle to have to carry and set up the chairs on each floor level and then clean up each chair after use.

In addition, as mentioned above, many of the latter telescopic movable floor devices already have chairs attached to the upper floor surface of each movable platform, and if viewing seats are not required, the chairs on each movable platform may be installed. Turn it over into a flat state and move it along with each movable bed stand to the bottom of each subsequent bed stand one after another, shorten the whole structure into a vertical shelf shape, and store it on the wall of a building, etc. If this is possible and a spectator seat is required, each movable platform will be moved forward in sequence and extended into a tiered configuration to create a seating area, and each chair on each movable platform will be raised to allow the audience to sit comfortably. However, in this case, chairs are always present on the upper floor of each movable platform regardless of whether it is in an upright position or in an upright position. The chairs could not be used for any purpose other than to hold seats, and there was a problem in that the chairs would get in the way when, for example, the seats were used to increase the number of spectators or when used for other purposes such as cheering.

[Means to solve the problem]

The floor device of the present invention has been developed in view of the above circumstances, and in order to conveniently solve the conventional problems, it includes a plurality of floor stands arranged in a tiered manner with respect to each other, which are elevating type or telescopically movable type (another fixed type is also possible). Front and rear floorboards are arranged on each upper surface of the floorboard and are arranged in front and back to form a mutually flat floor surface, and are provided so as to be able to stand up and rotate from a horizontal fall state, respectively, and the floorboard of the floorboard. By rotatably supporting the legs with a support mechanism at the rear of the lower space, the front floor board can be raised from its fallen storage state in the space below the front and rear floor boards of the floor stand, thereby creating a rear floor board. The chair is attached upwardly so that it can be erected and rotated, and is capable of allowing the front floor plate to fall to a horizontal position in the erected state, and a locking mechanism that locks the chair in the erected state and is operable to release the chair. It is characterized by what it did.

[Effect]

With the above configuration, when the chair is not in use, the entire chair can be stored upside down in the space below the upper floor plate of each floor stand, creating a flat floor surface with no chairs on the upper floor plate of each floor stand. When the chairs are in a state where they can be used for various performances without getting in the way, and when chairs are needed for viewing or performances, the front floorboards of each floor stand can be raised once and the underside of them can be used. If the chair that had been stored in the room is rotated upward together with the rear floorboard to stand up, the chair is locked in the upright position, and the front floorboard is then turned over and returned to its original position, creating a staircase with chairs. A tiered stage with bleachers or chairs can be constructed, and the audience or performers can comfortably sit on the chairs on each platform and watch or perform, and the chairs can be carried individually from storage. To provide a chair storage type floor device which is extremely simple and can be used for multiple purposes, eliminating the troublesome labor of coming and cleaning up.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. First of all, Figure 1 shows the schematic configuration of the entire liftable chair storage type floor device as seen from the side. A plurality of floor stands 1 are installed in the floor (or stage) A section of a building such as a gymnasium or hall. It is installed so that it can be raised and lowered by a lifting mechanism (not shown) such as a lift or a lift, and in normal times, each floor platform 1 is lowered to the same height as the floor A to form a flat floor surface, When necessary, each floor platform 1 is individually pushed up higher and higher from the front to the rear by a lifting mechanism, so that they mutually form tiered (step-shaped) viewing seats or a stage.

Each of these elevating type floor stands 1 has a horizontally long flat substantially hollow box shape, and floor plates 2 and 3 divided into front and back parts are arranged on the upper surface of each of these floor stands 1. A chair 5 is attached via a support mechanism 4 provided in the chair 1 so as to be able to stand up and fall down.

The structure of each of the above parts will be described in more detail with reference to FIGS. 2 to 5. Each floor stand 1 has a pair of front and rear frame members 1a to 1d located at the front and rear and extending long from side to side, and Vertical frame members 1e and 1f that exist between the front and rear frame members 1a and 1b and between 1c and 1d with an appropriate interval in the direction, and between the front and rear frame members 1a and 1c that also exist with an appropriate interval in the left and right direction. and 1
A frame is formed by horizontal frame members 1g and 1h interposed between b and 1d, and membrane plates 1j and 1k such as decorative boards are attached to the front and rear end surfaces of the frame. Note that steel pipes and the like are used for each of the frame members 1a to 1h.

Floor plates 2 and 3 divided into front and rear parts are provided so as to cover the upper front surface of each of these floor stands 1. The front and rear floorboards 2 and 3 are each made of plywood having high strength, and the front floorboard 2 is wider so that the width in the front and back direction is approximately 2:1. The lower front end of the front floor plate 2 is rotatably attached to the front upper frame member 1a of the floor table 1 by means of a hinge 7 provided through an angle member 6, as shown in FIG. It is installed so that it can stand up and fall down, and when it falls down, the joist 2a provided at the middle part and rear part of the lower surface
comes into contact with the upper surface of the horizontal frame member 1g at the top of the floor stand 1,
The floor surface is configured to cover approximately two-thirds of the front side of the upper surface of the floor stand 1 in a completely horizontal state.
The front floor plate 2 is supported by a spring 8, such as a gas type spring 8, whose upper end is pivoted to the lower surface via a pin and whose lower end is pivoted to the front lower frame member 1b via a pin, so that rotation operations for standing up and down can be performed. The load burden is reduced. Further, the rear floor plate 3 is attached to the rear surface of the leg portion 5a of the chair 5, as will be described later, and is attached to the rear surface of the leg portion 5a of the chair 5.
It is said that it is possible to stand up and fall down by rotating in unison with the body. When it falls down with the legs 5a, it is supported on the legs 5a and covers approximately one-third of the rear side of the upper surface of the floor stand 1 in a completely horizontal state, and there is no step over the entire surface along with the front floor plate 2. It is designed to form a flat floor surface.

Here, the chair 5 is a connected chair having a plurality of seats, and a through member (connecting pipe) 5b such as a square steel pipe is horizontally fixed to straddle the legs 5a arranged at intervals on the left and right. As shown in FIG. 3, a plurality of columns 5c are erected on the material 5b at equal intervals from each other, and a seat 5d and a backrest 5e are provided between each column 5c, and an armrest is provided at the upper end of each column 5c. 5f, all of the parts except the leg portions 5a are known, and include a seat 5d, a backrest 5e, and an armrest 5f.
are interlocked with each other, and the seat 5d and the backrest 5e are automatically expanded to a state where the seated person can sit comfortably, or conversely, when there is no seated person, the seat 5d and the backrest 5e are automatically raised so that they are in a flat state when viewed from the side. Overlapping and armrest 5
f is also called an automatic flip-up type or folding type that can be placed in an upright position. Each leg 5 of this chair 5
a is rotatably supported by a support mechanism 4 provided at the rear of the floor stand 1, and the chair 5 is supported as a whole by a support mechanism 4 provided at the rear of the floor stand 1.
By once raising the front floor plate 2 from the stored state where it has fallen into the space below the front and rear floor plates 2 and 3, the rear floor plate 3 can be removed.
It is also provided upwardly so that it can be erected and rotated. That is, each leg portion 5a has a substantially plate-like form as shown in FIG. 2 and FIGS. Decorative cover 5g on the front slope
is installed. Each support mechanism 4 has a rear upper frame member 1c in the floor stand 1 for these legs 5a.
A fixing plate 4a fixed vertically to the fixing plate 4a, and pins 4b and 4c spaced apart from each other in the front-rear direction on the fixing plate 4a.
It consists of a pair of front and rear links 4d and 4e whose lower ends are pivotally connected, and the front link 4d is relatively long and its upper end is connected to the rear part of the lower end of the leg 5a by means of a pin 4f (in a fallen state, the upper end The rear link 4e is a short one approximately half the length of the front link 4d, and its upper end is connected by a pin 4g to the lower end slightly forward of the pin 4f of the leg 5a (in a fallen state, the pin It is pivotally connected to the rear end slightly below 4f. The legs 5a are rotatably supported approximately on the pin 4f at the upper end of the long front link 4d, and the chair 5 is rotated in the direction of overturning, as shown by the solid line in FIG. .
When the chair 5 is held in a horizontal state in the lower space and rotated upward from the fallen state, both the front and rear links 4d and 4e rotate forward once, and then the front link 4d are reversed and return to the backward tilted state, and the rear link 4e continues to rotate forward and enter the forward tilted state, crossing each other in a substantially X shape as shown by the imaginary line in FIG. 5, and the entire chair 5 is Rear floorboard 3
It is designed to be held upright in a substantially vertical position. The chair 5 has a spring 9, such as a gas-type spring, whose upper end is pivoted via a pin to the lower surface of the rear floor plate 2 fixed to the legs 5a, and whose lower end is pivoted to the rear lower frame member 1d via a pin. This reduces the load burden during rotational operations for standing up and falling down.

Further, a lock mechanism 10 is provided to lock and hold the chair 5 in an upright position. This locking mechanism 10 consists of a cylinder 10a which is attached and fixed to the front end of the lower end of the leg 5a of the chair 5 (the lower rear end in an overturned state), and a lock pin 10b whose tip is slidably fitted into the cylinder 10a so as to be retractable. and the lock pin 10 is built into the cylinder 10a.
A pressing spring (not shown) that always urges the locking pin 10b in a protruding direction is fixed to the side surface of the upper horizontal frame member 1g of the floor table 1 so as to be placed on the movement locus of the locking pin 10b as the leg portion 5a rotates. guide plate 10c
This guide plate 10c has a lock hole 10d drilled near the upper end thereof, and one end thereof is connected to the leg portion 5a.
An interlocking wire 10f with a built-in coated tube is connected to the lock pin 10b and the other end is connected to the bracket 10e fixed to the upper surface of the lower horizontal frame member 1h in the floor stand 1. a rotating plate 10h, which is rotatably provided through the interlocking wire 10f and connected to the other end of the interlocking wire 10f;
The locking pin 10b is fixed to the rotating plate 10h at its base end and is integrally rotatable with the unlocking petal 10j.When the chair 5 is stood up and rotated upward, the locking pin 10b is moved upward together with the leg portion 5a. Move to
From halfway there, the lock pin 10b slides its tip onto the guide plate 10c and moves further upwards while retracting against the pressure spring in the cylinder 10a, and rotates until the chair 5 stands completely vertically. Then, the lock pin 10b aligns with the lock hole 10d, is pushed by the pressure spring, and is automatically fitted into the lock hole 10d.
The standing state of the pedal 10j is now locked in an immovable state, and the locked state is released.
By stepping on and rotating the chair 5 with a foot, the lock pin 10 is pulled in through the interlocking wire 10f and removed from the lock hole 10d, thereby unlocking the chair 5 and allowing it to fall.

Therefore, the liftable chair storage type floor device having the above-mentioned configuration is installed on the floor (or stage) A section of a building such as a gymnasium or hall, and the lower side of the upper floorboards 2 and 3 of each floor stand 1 is If the chairs 5 are all overturned and stored in the space, and each floor stand 1 is lowered to the same height as the floor A using a jack built into the floor or a lifting mechanism such as a lift, all the floors The upper front and rear floor plates 2 and 3 of the platform 1 form a flat floor surface that is flush with the floor A of the building, on which various competitions and performances can be held.

Next, each floor table 1 is individually pushed up higher and higher from the previous one to the next one by the lifting mechanism, so that each floor table 1 is mutually arranged in a tiered (step-like) manner as shown in FIG. Becomes the audience seats or stage. When using the chairs 5 as regular spectator seats or as a stage for an orchestra performance, first push up and rotate the front floor plate 2 of each floor stand 1 to open the front side once and store it in this state. link 4d of the support mechanism 4,
4e to push it upward and rotate it. With this, the entire chair 5 including the legs 5a stands up and turns above the floor stand 1 together with the rear floor plate 3, and when the chair 5 stands up and turns in a completely vertical state, the locking mechanism 10 of the legs 5a The lock pin 10b automatically fits into the lock hole 10d of the guide plate 10c,
The upright state of the chair 5 is kept locked. In this way, with the chairs 5 in the upright position, by rotating the front floor plate 2 which has been opened in the upright position backwards and causing it to fall horizontally onto the floor stand 1, a tiered viewing area with chairs or a tiered stage with chairs can be constructed. . Now, the audience or performer can walk on the front floorboard 2 at the top of each floorboard 1 to reach the desired seat of the chair 5, and then push the seat 5d of the chair 5 forward. At the same time as the armrest 5d falls down to a substantially horizontal state, the backrest 5e tilts backward and the armrest 5f unfolds so as to fall horizontally. This allows the audience, performers, etc. to sit comfortably on the chairs 5 and enjoy viewing, playing, and the like.

In addition, if the chairs 5 are not needed in the above-mentioned tiered (stair-shaped) bleachers or stage condition, the upper front floor plate 2 of each floor stand 1 can be pushed up and rotated in the same manner as before to stand up and open to the front side. In this state, step on the release pedal 10g of the locking mechanism 10 to release the locking pin 10b from the locking hole 10d, and then rotate the chair 5 so that it is horizontal in the floor table 1. to fall into a state. At this time, when the seat 5d, the backrest 5e, and the armrests 5f are no longer in the unfolded state where the seater can sit, the chair 5 automatically becomes a flat state when viewed from the side so that they overlap, so that the chair 5 remains in that flat state. The entire chair 5 is tipped over so that it is completely submerged within the floor stand 1. At the same time, the rear floor plate 3 also falls horizontally onto the upper part of the floor stand 1. Here, the front floor plate 2 which has been opened and raised is rotated rearward again to fall horizontally onto the floor stand 1. Now, the upper front and rear floor plates 2 and 3 of each floor stand 1 are closed to each other with the chair 5 stored underneath, forming a flat floor surface, on which the chair 5 is placed. The audience can now stand, cheer, or perform various performances such as chorus without getting in the way. Easily connect 5 chairs to 1 stand each
To provide a very simple and versatile chair storage type floor device which can be made to stand up and sit on, or can be stored in the space below the upper floor plates 2 and 3 of each floor stand 1 so as not to get in the way.

It should be noted that during this turning operation for standing up and falling down, the chair 5 rotates while being once deflected forward by the pair of links 4d and 4e of the support mechanism 4, so that the rear floor plate 3 fixed to the rear side of the legs 5a rotates. The rear end is floor stand 1
There is no inconvenience such as getting caught on the upper edge of the rear side plate 1k and getting twisted.

Further, the support mechanism 4 includes the pair of links 4d,
4e, the leg portion 5a of the chair 5 may be rotatably supported simply by a spindle (not shown), or any other known rotary support mechanism may be used as appropriate. be.

Also, the chair 5, the rear floorboard 3 and the front floorboard 2
and are supported by gas springs 9 and 8, respectively, so that the rotating operations for standing up and falling down can be easily performed with less load. Note that the gas springs 9 and 8 may be replaced with appropriate springs such as oil springs. Further, the rotating operation of standing up and falling down the chair 5, the rear floor plate 3, and the front floor plate 2 may be performed by a drive mechanism using power such as a motor (not shown) instead of depending on input.

Furthermore, in the above embodiment, an elevating type floor device is illustrated, but each floor platform is provided on mutually interconnected carts, and in normal times, they are moved one after another to the bottom of each subsequent platform. It is applied to an extendable and movable floor device that can be stored in a shortened state like a vertical shelf on the wall of a building, etc., and when necessary, each floor platform can be moved forward one by one and extended into a tiered shape to serve as a spectator seat. Alternatively, the structure can be exactly the same, with the only difference being that each floor table 1 is raised and lowered by a push-up mechanism or moved forward and backward by a trolley. In some cases, the floor stand 1 may be of a fixed type. Various other changes can be made without departing from the gist of the present invention.

[Structure of the invention]

Since this invention is made as described above, when the chair is not in use, the entire chair can be stored in an inverted state in the space below the upper floor plate of each floor stand, so that there is no chair on the upper floor plate of each floor stand. This creates a flat floor surface, and the chairs can be used for various performances without getting in the way. Also, when chairs are needed for viewing seats or performances, the front floorboards of each floor stand can be removed once. If you stand up the chair that was stored under the chair and rotate it upward together with the rear floorboard, you can lock the chair in its upright position, and in that state, you can topple the front floorboard and return it to its original position. It is possible to configure tiered seats with chairs or a tiered stage with chairs, and the audience or performers can comfortably sit on the chairs on each platform and watch or perform. To provide a floor device for storing chairs such as bleachers, which is very simple and can be used for multiple purposes, without the troublesome labor of separately carrying it from a storage and putting it away.

[Brief explanation of drawings]

The drawings show one embodiment of the invention.
The figure is a configuration diagram of the entire structure seen from the side, Figure 2 is a sectional view of the floor stand with only one stage, Figure 3 is a front view with the same part omitted, and Figure 4 is an enlarged sectional view of the main parts seen from the front. ,
FIG. 5 is a side view of the main parts. 1... Floor stand, 2... Front floor plate, 3... Rear floor plate, 4... Support mechanism, 4d, 4e... Link, 5
...Chair, 5a... Legs, 5d... Seat, 5e...
Backrest, 8, 9... Spring, such as gas type, 10
...Lock mechanism.

Claims (1)

[Scope of Claims] 1. A double-opening system that changes from a horizontal overturning state to a plurality of floor tables arranged in a tiered manner and divided into front and rear sections on each upper surface of the floor tables to form a mutually flat floor surface. Front and rear floorboards are each installed so that they can be stood up and rotated,
By rotatably supporting the legs with a support mechanism at the rear of the space under the floor plate of the floor stand, the front floor plate is once erected from an overturned storage state in the space below the front and rear floor plates of the floor stand as a whole. A chair that is attached so as to be able to stand up and rotate upward along with the rear floorboard, and that can allow the front floorboard to fall to a horizontal state in the upright state, and a lock mechanism that can be released to lock and hold the chair in the upright state. A chair storage type floor device for a bleacher, etc., characterized by comprising: 2. The floor platforms can be raised and lowered from a mutually flat state by being individually pushed up to an appropriate height by a lifting mechanism such as a jack or a lift to form a tiered structure, or they can be shortened into a vertical shelf shape using interconnected carts. 2. A chair-storage type floor device for a viewing seat or the like as set forth in claim 1, characterized in that the floor device is an extendable and retractable movable platform that moves forward sequentially from the top to form a tiered platform. 3. A chair-storage type floor device for a viewing seat or the like as set forth in claim 1, wherein the rear floor plate is fixed to the legs of a chair and is configured to be raised up and down together with the chair. 4. Claim 1, characterized in that the chair is a folding or automatic flip-up type chair that has a seat and a backrest, and the seat and backrest can be brought into an overlapping state when no one is sitting on the chair. Chair storage type floor equipment for bleachers, etc., as described in Section 1. 5. A chair storage type floor device such as a viewing seat according to claim 1 or 4, wherein the chair is a connecting chair having a plurality of seats. 6. Claim 1, characterized in that the support mechanism that rotatably supports the legs of the chair is comprised of pairs of links or spindles of mutually different lengths.
Chair storage type floor equipment for bleachers, etc., as described in Section 1. 7. A chair-storage type floor for spectator seats, etc., as set forth in claim 1, wherein the front floorboard and the chairs are supported by gas-type springs or the like for bearing the load during rotational operations for standing up and falling down. Device.