JP2000204778A - Movable auditorium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a handrail installed to prevent the falling, etc. of spectators from the uppermost stepped floor artificially interposable, fixable, or removable. SOLUTION: A movable auditorium is provided with a plurality of stepped floors 1 which are moved forward and expanded in the state of a tiered stand when the auditorium is used and retreated and folded up in an overlapping state when the auditorium is housed and chairs 4 which are erectably and tiltably arranged on the stepped floors 1 in front of the uppermost stepped floor 1(X), titled along the floors 1 when the auditorium is housed, and erected on the floors 1 when the auditorium is used. On the stepped floor 1(Y) on which the rearmost row of chairs 4 are arranged, a handrail 6 which prevents spectators from getting on the uppermost stepped floor 1(X) is provided in such a way that the handrail 6 can be erected and tilted together with the chairs 4.

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 Recently, various types of movable seats for multipurpose use in a gymnasium or the like have been developed. This kind of movable bleachers can be set up in the hall or removed as necessary, so that a plurality of bunk floors with different heights advance forward when in use and are deployed in the shape of a bed, And is stored in the storage space in a superposed state.

[0003] In this case, in order to prevent a viewer or his or her personal belongings from dropping from the uppermost floor, it is customary to provide a handrail on the floor. Has become. Since this handrail is higher than the ceiling surface of the storage space at the time of installation, an attachment portion is provided on at least the step floor so that the handrail can be attached and detached, and the worker attaches the handrail to the attachment portion at the time of use, At the time of storage, the worker pulls out the handrail from the mounting portion and retreats the step floor.

[0004]

However, in such a configuration, the frequency of the worker working on the uppermost floor is increased, and the worker is excessively moved while being on the uppermost floor. Since the seats can be driven, some danger cannot be eliminated. Also, if the handrail is forcibly driven out of the mounting part when retracted and the stepped floor is retracted, the handrail collides with the front wall near the ceiling surface of the storage space and damages the handrail. At first, there is a high possibility that the driving system and eventually the movable seat will be damaged.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, a handrail is automatically installed when the movable seat is used, and the handrail is automatically stowed when stored. It is structured so that no human involvement is required.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The movable spectator according to the present invention has a plurality of floors that advance forward when used, are deployed in a nested bed shape, retracted rearward when stored, and stored in a superposed state,
A chair which is disposed on the bunk floor on the front side of the top bunk floor so as to be able to be turned upside down and falls down along the bunk floor at the time of storage and stands up from the bunk floor at the time of use; A handrail that prohibits a viewer from entering the uppermost bunk floor is provided on the bunk floor provided with the chair so that the chair can be raised and lowered together with the chair.

With this configuration, if the chair is raised, the handrail is automatically raised and installed. If the chair is turned down, the handrail is automatically turned down. Eliminates the need to install and remove handrails each time,
In addition, it is possible to surely eliminate the danger of retreating the bunk floor while leaving the handrail out. In general, this type of moving seats generally form a passage on the part of each bunk floor for the viewer to walk up and down. It is effective to provide the passage in such a manner that the passage is closed.

In the case where chairs are provided on both sides of the passage, the left and right side edges of the handrail may be supported by a chair at a corresponding position or a movable supporting portion which supports the chair so that it can be turned upside down. It is convenient. When a chair is provided only on one side of the passage, one side edge of the handrail is supported by the chair at the corresponding position or the movable supporting portion that supports the chair so that it can be turned upside down, while the other side edge is supported. May be pivotably supported by a pivot provided at the corresponding position.

[0009] As a specific embodiment of the handrail, there is a handrail comprising a pair of columns and a horizontal member connecting the upper ends of both columns.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. The movable seat has a plurality of steps 1 having different heights, and these steps 1 are advanced forward as shown in FIG.
At the time of storage, as shown in FIG.
Since the running frame supporting each step floor 1 and the drive system for moving the running frame forward and backward have basically the same structure as that of the related art, Description is omitted.

On each of the floors 1 other than the uppermost floor 1 (X), supporting rods 2 are provided at a plurality of positions so as to be able to be turned upside down by a drive shaft (not shown). The support rods 2 support the beam 3 in the form of a square pipe, and the beam 3 is provided with a required number of chairs 4 including a seat 41, a back 42 and an armrest 43. That is, the corrugated floor 1 is
And the support rods 2 are erected at that position, thereby holding a group of chairs 4 attached to the common beam 3 side by side at the same time in the erected position. By lying down, the chairs 4 can be simultaneously held at the lying position folded on the upper surface of the floor 1. A certain gap is provided between some of the chairs 4 and the sides of the chair 4, and this gap forms a passage 5 when a viewer walks up and down between the steps 1 and 1. . Reference numeral 51 denotes an auxiliary step that is automatically extended at the time of development. The beam 3 ends at a position supporting the chair 4 (X) closest to the passage 5 so as not to reach the passage 5. Of course, even if the beam 3 is divided in this manner, all the supporting rods 2 supporting the beam 3 on the same step floor 1 are driven to be synchronously moved up and down.

In such a configuration, the present embodiment places the viewer on the bunk floor 1 (Y) preceding the top bunk floor 1 (X) in which the chairs 4 in the last row are arranged. A handrail 6 for inhibiting entry into the uppermost floor 1 (X) is provided so as to be able to move up and down together with the chair 4. Specifically,
The handrails 6 are provided in pairs on the left and right, and each base end 6
A gate-shaped one composed of a column 61 that fixes 1a to the beam 3 serving as a movable supporting portion at a corresponding position in an appropriate mode, and a horizontal member 62 that connects between upper ends 61b of the columns 61, When the handrail 6 stands with the chair 4, the horizontal member 62 is disposed at a height substantially equal to the upper end of the backrest 42 of the chair 4, and is located just before reaching the top floor 1 (X). , The passage 5 is closed to prohibit the viewer from entering the uppermost floor 1 (X). When the handrail 6 falls down with the chair 4, it is set so as not to prevent the step floor 1 (Y) from getting under the top step floor 1 (X) and polymerizing. .

With this configuration, if the chair 4 is erected, the handrail 6 is also automatically erected and installed. If the chair 4 is laid down, the handrail 6 is automatically laid down. Therefore, there is no need for the worker to install and remove the handrail 6 each time, and the danger of retreating the bunk floor 1 with the handrail 6 forgotten to be taken out can be reliably eliminated. In particular,
In the moving seat of the present embodiment, a passage 5 for a viewer to ascend and descend is formed in a part of each of the floors 1, 1, and an approach route to the uppermost floor 1 (X). Is limited, and since the only approach route is closed by the handrail 6, it is possible to surely prevent the entrance of the viewer.

Moreover, since the columns 61 located on the left and right side edges of the handrail 6 are only supported by the beams 3 located at the corresponding positions, the existing elements can be used without any additional drive mechanism or the like. The attachment of the handrail 6 can be completed by effectively using the parts. The specific configuration of each unit is not limited to only the above-described embodiment.
For example, in the above embodiment, the handrail is configured to be attached to the beam which is a movable support portion that supports the chair so that the chair can be turned upside down, but it may be attached to a part of the chair, for example, an appropriate part such as a column of an armrest or a backrest. it can. In addition, as shown in FIG. 5, in a place where the chair 4 is arranged only on one side of the passage 5, for example, near the end of the corrugated floor 1, the handrail 6 is used.
One side edge can be supported by the chair 3 at the corresponding position or the movable supporting portion that supports the chair 3 so that it can be turned up and down as in the above embodiment, but the other side edge has nothing to support it. . In such a case, a pivot 7 having a simple bearing structure is disposed at a corresponding position, and a handrail 6 is attached to the pivot 7.
The other side edge may be pivotally supported so as to be able to follow.

In addition, the specific shape of the handrail can be variously modified without departing from the spirit of the present invention.

[0016]

The movable spectator according to the present invention has the above-described structure, and thus has the following effects.
That is, in the moving seat of the present invention, a chair is arranged so that it can be turned upside down only on the bunk floor in front of the top bunk floor, and on the bunk floor in which the chair in the last row is arranged, A handrail that prohibits the viewer from entering the uppermost floor is provided so as to be able to move up and down together with the chair.

For this reason, the handrail can be automatically installed and removed in conjunction with the raising and lowering operation of the chair, eliminating the need for a worker involved in this and eliminating forgetting to put out the handrail. In addition, it is possible to provide a movable viewing seat that is safe, easy to use, and can reduce running costs. If a passage for ascending or descending the viewer is formed on a part of each floor, a handrail is provided so as to close the passage, and it is clear that the next stage is the top stage. This makes it possible to reliably prevent the viewer from entering the top row.

When chairs are arranged on both sides of the passage, the left and right side edges of the handrail may be supported by the chair at the corresponding position or the movable supporting portion that supports the chair so that it can be turned upside down. The present invention can be easily configured without newly bringing in a mechanical part for sliding drive, and the present invention can be easily applied to existing seats and the like. On the other hand, when the chair is provided only on one side of the passage, one side edge of the handrail is supported by the chair at the corresponding position or the movable supporting portion that supports the chair so that it can be turned upside down, while the other side edge is supported. If the handrail is pivotally supported by a pivot portion provided at the corresponding position, the cantilever of the handrail can be relatively simply eliminated.

If the handrail is of a gate-like shape composed of columns and horizontal members, a desired effect can be obtained with a very simple structure.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention in a state in which a corrugated floor is developed in a nested bed shape.

FIG. 2 is a side view of a stored state corresponding to FIG.

FIG. 3 is a schematic partial plan view of FIG. 1;

FIG. 4 is a partially enlarged side view of FIG. 1;

FIG. 5 is a diagram showing another embodiment of the present invention.

[Explanation of symbols]

Reference Signs List 1 ... bunk floor 1 (X) ... top bunk floor 1 (Y) ... bunk floor in which the last row of chairs is arranged (bunk floor in front of top bunk floor) 3 ... movable support (beam) 4) chair 5 ... passage 6 ... handrail 7 ... pivot 61 ... column 62 ... horizontal member

Claims (5)

[Claims] 1. A plurality of bunk floors which advance forward when used and are deployed in a nested bed form, retracted rearward during storage and stored in a superposed state, and a bunk floor which is in front of the top bunk floor. A chair which is arranged so as to be able to be turned upside down and lays down along the step floor when stored and stands up from the step floor when used. A movable viewing seat characterized in that a handrail that prevents the user from entering the uppermost floor is provided so that it can be moved up and down together with the chair. 2. A handrail is provided in a part of each of the floors to form a passage for a viewer to walk up and down, wherein a handrail is provided so as to close the passage. The moving seat according to item 1. 3. A chair provided on both sides of a passage, wherein left and right side edges of a handrail are supported by a chair at a corresponding position or a movable supporting portion which supports the chair so that the chair can be turned upside down. The moving seat according to claim 2, characterized in that: 4. A chair provided with a chair only on one side of a passage, wherein one side edge of the handrail is supported by a chair at a corresponding position or a movable support portion which supports the chair so that the chair can be turned upside down.
3. The movable spectator seat according to claim 2, wherein the other side edge is pivotably supported by a pivot portion provided at a corresponding position. 5. The mobile viewing device according to claim 1, wherein the handrail is composed of a pair of columns and a horizontal member connecting the upper ends of the columns. seat.