JPH09189140A - Moving bleachers - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To eliminate the complexity of installing and removing a movable ramp at the side of the last stage of a moving bleacher at each event and the accompanying increase in storage space. SOLUTION: A plurality of raised floors 1 and a plurality of movable frames 2 each having a storage space S opened on the front surface side for supporting each raised floor 1 under a constant height difference are provided.
When it is moved to the use position, the floor 1 is expanded in a tiered manner, and when moved to the storage position, the floor 1 is moved to the movable frame 2
Along with this, it is configured so that it can be stored in the storage space S of the adjacent movable frame 2 on the rear stage side. The movable frame 2R at the final stage is integrally provided with the hoistway 5 that can directly move between the final floor 1R and the floor surface F.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable seat used in a gymnasium or a multipurpose hall.

[0002]

2. Description of the Related Art This type of movable spectator seat is usually used to open a floor in a large place such as a gymnasium or a multipurpose hall, and to form a spectator seat in a part of the seat if necessary. It is configured to be movable. Specifically, it includes a plurality of floors, and a plurality of movable frames each having an opening of a storage space on the front side supporting each floor under a constant height difference, and each movable frame is located at a use position. When moved to the storage position, the floor is developed in a tiered form, and when moved to the storage position, the floor is superimposed so that it can be stored together with the movable frame in the storage space of the adjacent rear movable frame. Have been. That is, when not in use, all the movable frames are stored in the last movable frame. In general, the last movable frame is also retracted and stored in a fixed storage room formed in a part of the building structure.

[0003]

By the way, when the movable frame is moved to the use position and the corrugated floor is unfolded in a tiered manner, a stage is set in front of the entire seat. It is customary to use a part of the staircase as a stair that can move between the floor near the stage and the floor of each stage.

[0004] However, even after the event starts on the stage, if the viewer frequently goes up and down between the seat and near the stage using some of the stairs,
It is easy to interfere with events and other visitors.

Therefore, conventionally, a movable ramp is attached to the side of the last floor of the terrace before the event starts, so that even if the viewer does not approach the stage, the movable trap can be used to directly enter / exit the rear part of the viewing seat. Is used in this way. For this reason, in addition to taking the time to take in and out the moving ramp,
There is a problem in that a separate space must be secured in a building structure or the like to store the mobile ramp when not in use.

It is an object of the present invention to provide a moving bleaching seat that suitably solves such problems.

[0007]

In order to achieve the above object, the present invention employs the following configuration.

That is, the moving bleacher of the present invention comprises a plurality of tiered floors, and a plurality of movable frames having a storage space opened on the front side for supporting each tiered floor under a certain height difference. When each movable frame is moved to the use position, the stair floor is expanded in a step-like manner, and when moved to the storage position, the stair floor is adjacent to the movable frame and the storage space for the adjacent movable frame on the rear stage side. The movable frame at the last stage is integrally provided with a hoistway that can directly move between the floor at the last stage and the floor surface.

As a concrete embodiment, the last movable frame is retracted and stored in a fixed storage chamber formed in a part of the building structure together with the hoistway when not in use. To be

Each tier has a seat and a tiltable backrest,
There may be provided tilting means for holding the backrest in the upright state at the use position and rotating the backrest to the substantially horizontal state at the storage position. Further, the corrugated floor itself may be used as a seat.

In order to make the hoistway compact,
It is preferable that the hoistway is provided in a direction orthogonal to the moving direction of the movable frame.

The hoistway may have a step-like shape or a slope-like shape. In addition, the shape is preferably a linear shape from the viewpoint of compactness, but depending on the situation, any shape such as a landing point that folds back there or a spiral shape is optional. is there.

With such a structure, as the movable frame at the last stage moves between the use position and the storage position,
The hoistway is automatically installed near the rearmost part of the moving bleachers in the use position, and the hoistway is automatically stored in the storage room together with the moving bleachers in the storage position. This eliminates the need for forming and removing the hoistway each time as with a moving ramp. In addition, of the last movable frame, behind the storage space for storing the front movable frame, there is a clearance space at the storage location so that the movable frame does not interfere with the drive source of the frame drive mechanism etc. Since the present invention can be configured simply by using the outer wall portion of such a space, there is no problem that the movable frame becomes extremely large in providing the hoistway, and the storage space is accordingly increased. There is no need for significant expansion.

In particular, when the hoistway is provided in the direction orthogonal to the moving direction of the movable frame, the hoistway can be constructed so as to have almost no influence on the amount of expansion / contraction stroke.

As described above, according to the present invention, it is possible to automatically form and remove the hoistway which can directly go in and out from the floor to the rear part of the bleaching seat, without increasing the size of the entire apparatus and increasing the storage space. Therefore, there is an excellent effect that the function and usability of the moving bleachers can be dramatically improved as compared with the conventional case.

[0016]

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

FIG. 1 is a side view showing the state when the moving bleachers are in the use position, FIG. 2 is a plan view thereof, and FIG. 3 is a side view showing the state when the moving bleachers are in the storage position.
FIG. 4 is a plan view thereof, and FIG. 5 is a rear perspective view showing a movable frame at the last stage of the moving bleachers.

As shown in these drawings, this moving bleaching seat comprises a plurality of raised floors 1 and a movable frame 2 for supporting each raised floor 1.

The movable frame 2 is also referred to as a wheel channel or the like, and as shown in FIGS. 1 and 5, a pair of left and right wheel bases 21 and an upright position at the rear of the wheel wheel bases 21. And the left and right columns 2 are provided.
A storage space S that opens to the front side is formed between the two, and the step floor 1 is installed between the upper ends of the columns 22. The post 22 of each movable frame 2 is bulkier toward the rear side,
Further, the rear-stage side is fixed so as to be positioned from the outer side, and the front-side movable frame 2 is provided in the rear-stage storage space S.
The whole can be stored together with the raised floor 1. Then, these movable frames 2 are driven to expand and contract by frame driving means 3. As shown in FIGS. 1 and 2, the frame driving means 3 is formed by utilizing, for example, a part of a building structure wall located at the rearmost position, that is, further rearward than the movable frame 2R at the last stage in this embodiment. And a ladder chain (not shown) connecting the drive source (not shown) arranged in the fixed storage chamber A and the stepped floor 1F in the front row.
The terraced floor 1F in the front row is configured to be moved forward by unwinding the ladder chain and retractable backward by winding the ladder chain. Then, the adjacent floors 1 and 1 are reciprocally moved at the forward engagement position and the reverse engagement position (not shown) so that the rear floors are sequentially driven by the behavior of the front floor 1F. It is configured to be connected to. In other words, when each movable frame 2 is moved to the use position by the frame driving means 3, the terrace 1 is expanded in a tiered manner as shown in FIGS. As shown in FIGS. 3 and 4, they are superposed and stored together with the movable frame 2 in the storage space S of the movable frame 2 on the rear stage side. In particular, all the movable frames 2 and the raised floor 1 on the preceding stage side are housed in the movable frame 2R at the last stage. Furthermore, in this embodiment, the last movable frame 2R is also retracted and stored in the above-mentioned fixed storage room A behind it.

The moving bleachers in this embodiment are provided with a seat 41 and a tiltable backrest 42 on the tiered floor 1 of each tier.
The foldable chairs 4 are arranged, and the backrests 42 of the chairs 4 are used upright at the use positions shown in FIGS. 1 and 2, and the backrests 42 are seated at the storage positions shown in FIGS. 3 and 4. The chair 4 is rotated to a horizontal position where the chair 4 is substantially overlapped, and the chair 4 is accommodated together with the floor 1 on which the chair 4 is provided on the lower surface of the rear floor 1.
For this purpose, a backrest drive mechanism widely known in the art can be used.For example, a link mechanism is provided at the lower end of the backrest, and this link mechanism is connected to a common drive shaft arranged for each stage. There may be mentioned one in which a plurality of chairs are simultaneously tilted by rotating the lever.

In this structure, the present embodiment
As shown in FIG. 5, a pair of hoistways 5 that can directly go between the last step floor 1R and the floor surface F are integrally provided on the last movable frame 2R. Specifically, as shown in FIG. 3, behind the central portion of the storage space S of the last movable frame 2R, when the movable frame 2R is stored in the fixed storage room A, the movable frame 2R Escape space V so as not to interfere with the driving source of the frame driving means 3
Is secured in advance, and a portion of the outer wall of the movable frame 2R that forms the escape space V extends from the central portion toward the left and right sleeves, that is, in the direction orthogonal to the moving direction of the movable frame 2. The hoistway 5 is formed in a step shape.

With such a structure, the movable frame 2R at the final stage has the use position shown in FIGS.
The hoistway 5 is automatically installed in the vicinity of the rearmost part of the movable seat when used, and is automatically stored in the storage room A when stored, as it moves between the storage positions shown in FIG. For this reason, it is possible to completely eliminate the trouble of forming and removing the hoistway each time as in the conventional moving ramp. In addition, in the present embodiment, the portion that becomes the outer wall of the movable frame 2R is originally formed in a staircase shape, and since the hoistway 5 is provided, the movable frame 2R does not increase in size at all. A proper storage state for the hoistway 5 can be ensured without separately expanding the room A. Such an operation and effect can be achieved especially by moving the hoistway 5 in a direction that hardly affects the entire telescopic stroke amount, that is, the movable frame 2.
By providing it in a direction perpendicular to the direction of movement of R, it can be more effectively exerted.

As described above, the moving bleachers of this embodiment automatically form the hoistway that allows the passengers to directly enter and exit from the floor F to the rear of the bleachers without increasing the size of the entire apparatus and increasing the storage space. Therefore, it is possible to remove it, and thereby, the excellent effect that the function and usability of the moving bleachers can be remarkably enhanced as compared with the conventional case is exhibited.

The specific structure of each part is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, in the above embodiment, the hoistway is provided so as to descend toward the left and right sleeves with the central portion of the last step floor as the top, but as shown in the hoistway 6 in FIG. The left and right sleeves may be provided at the top, and may be provided so as to descend from there toward the center. Further, in the above embodiment, the hoistway is configured as a step-like one, but may be a slope-like one having a constant gradient. further,
The shape thereof is not limited to the linear shape shown in the figure, but may be any shape such as a landing point in the middle of which is folded back and a spiral shape.

[Brief description of the drawings]

FIG. 1 is a side view showing a state when a movable spectator seat according to an embodiment of the present invention is at a use position.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view showing a state where the movable viewing seat of the embodiment is in a storage position.

FIG. 4 is a plan view of the same.

FIG. 5 is a rear perspective view showing the last movable frame of the movable seat in the embodiment.

FIG. 6 is a perspective view corresponding to FIG. 5, showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Step floor 2 ... Movable frame 2R ... Last stage movable frame 5, 6 ... Hoistway A ... Fixed storage room F ... Floor surface S ... Storage space

Claims (3)

[Claims] 1. A vehicle comprising: a plurality of stepped floors; and a plurality of movable frames each having an accommodation space opened on a front side for supporting each of the stepped floors under a fixed height difference.
It is configured so that when it is moved to the use position, it expands like a tier, and when it is moved to the storage position, it can be stored together with the movable frame in the storage space of the adjacent movable frame on the rear stage side. The moving bleachers are characterized in that the movable frame at the last stage is integrally provided with a hoistway that allows direct access between the last floor and the floor. 2. The apparatus according to claim 1, wherein the last movable frame is retracted and stored in a fixed storage room formed in a part of the building structure together with the hoistway when not in use. The described moving seat. 3. The moving bleacher according to claim 1 or 2, wherein the hoistway is provided in a direction orthogonal to the moving direction of the movable frame.