JP3028040B2 - Grandstand Chair in Arena - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair for a grandstand installed in a facility, a so-called arena, in which a large-scale space is secured for performing a sport, a concert, a theater or the like.

[0002]

2. Description of the Related Art Conventionally, as a seat for a spectator seat installed in an arena of this type, a heating device such as a heater is incorporated in the interior thereof, so that it can be used not only for a seat but also for heating a spectator in winter. What is known is.

[0003]

However, the above-mentioned conventional seating chairs in the arena are used only for heating the audience in winter, in addition to the seating for viewing. However, despite the need for sound absorption for acoustic reasons, the interior of a general arena is limited in the place where sound absorbing material is provided unlike facilities such as theaters and concert halls, and the sound absorption is not sufficient There is a problem that there are many cases.

If the sound absorption in the arena is not sufficient as described above, the reverberation time becomes longer due to the large space and reverberation occurs.
For example, problems such as difficulty in hearing announcements occur.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a seating chair in an arena which can be used for sound absorption in the arena.

[0006]

According to the present invention, a large number of seating chairs installed in the arena are actively used for sound absorption in the arena, and are used for heating the audience in winter. The equipped heating equipment will be developed so that it can also function as a sound absorber.

More specifically, a general chair for a seat in which a heater is incorporated as a heating device has a capacity of about 20 W per one chair. for that reason,
Insulation must be applied to the back of the heater to prevent heat from escaping to the back of the chair and effectively warm the people sitting in the grandstand chair.

Therefore, in the present invention, the heat insulating material is made of a heat insulating and sound absorbing material having sound absorbing properties, and a plurality of openings communicating with the heat insulating and sound absorbing material are opened on the back surface of the chair, so that a large space in the arena is sound absorbing. A chair that also has the effect of enhancing power. By installing a large number of chairs for the audience seats with enhanced sound absorption capacity in the arena, the reverberation time of the large space in the arena can be shortened, and the clarity of sound such as announcements can be increased. .

[0009] Although a person sitting in a grandstand chair also has a sound absorbing effect, even when a person is sitting, the sound absorbing effect of the heat insulating and sound absorbing material is effective at the opening on the back side of the chair, and the sound absorbing power of the person is reduced. The sound absorbing power from the back of the chair is added, and the clarity of the sound can be further increased.

On the contrary, in the chair for the grandstand of the present invention, a sound absorbing effect can be expected even in a chair where no person is sitting.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an arena according to the present invention.

[0012] together it is installed in the arena (not shown) in a large space facilities for doing sports, etc., to the inside
That put the arena are equipped with heating facilities 2 for heating bleachers chair 1 (see FIGS. 1 and 2) is, on the rear surface of the pressurized heat equipment 2, a heat insulating acoustic material that can perform a thermal insulation and sound absorbing 3
Together they are set only to the lower surface of the chair 1, which is the lower part of the heat insulating acoustic material 3, a plurality of openings 4 for communicating with the heat insulating sound absorbing material 3
The provided is configured in Rukoto.

As the heat insulating sound absorbing material 3 in this embodiment, a material which can also serve as a sound absorbing material such as glass wool is used as the heat insulating material on the back surface of the electric heater which is the heating equipment 2 provided in the chair 1. Thus, the heat insulating sound absorbing material 3 is used.

A plurality of openings 4 provided on the lower surface of the chair, which is the lower part of the heat insulating and sound absorbing material 3, in a state communicating with the heat insulating and sound absorbing material 3, may have many holes (openings) formed on the lower surface of the chair 1. , And are formed by opening openings as stitches. The chairs 1 with enhanced sound absorbing power can be provided by the openings 4.

Further, as shown in FIG. 1, the chair 1 for the grandstand is provided with a surface finishing material 5 provided on the seat surface.
A mesh heater 6 provided on the lower surface of the surface finishing material 5, a heat insulating sound absorbing material 3 provided on the lower surface of the mesh heating heater 6, and a lower surface of the chair which is a lower portion of the heat insulating sound absorbing material 3, And a back surface finishing material 7 having a plurality of openings 4 in communication with the heat insulating and sound absorbing material 3.

Grandstand chair 1 having such a configuration
As shown in FIG. 2, a large number of are installed in the seats 8 in the arena. According to the grandstand chair 1 of the present invention, a sound absorbing effect is added from the heat insulating sound absorbing material 3 inside and the opening 4 communicating with the heat insulating sound absorbing material 3, so that the reverberation time of the large space in the arena can be improved. , And the clarity of sound such as announcements in the arena can be increased.

Although a person (not shown) sitting in the grandstand chair 1 also has a sound absorbing effect, the sound absorbing effect of the heat insulating sound absorbing material 3 is effective in the opening 4 on the back side of the chair even when the person is sitting. Therefore, the sound absorbing power from the back side of the chair is added to the sound absorbing power of the person, so that the sound clarity can be further improved. Conversely, in the seat for a grandstand 1 of the present invention, a sound absorbing effect can be expected even in a chair where no person is sitting.

[0018]

According to the present invention, the seating chair is provided with a sound absorbing ability by the heat insulating sound absorbing material attached to the heating equipment inside the chair and the opening on the back surface of the chair communicating with the heat insulating sound absorbing material. Can be. Therefore, in the grandstand chair of the present invention, the reverberation time in an arena having a large space where the reverberation time tends to be long can be shortened, and the clarity of sound such as an announcement in the arena can be increased. .

In addition, in the chair for a grandstand of the present invention, the sound absorbing effect can be added only by using the heat insulating material necessary for the chair provided with the heating equipment and providing an opening on the back surface of the chair. Can be. Therefore, it is possible to easily provide the grandstand chair of the present invention by a general manufacturing means as a chair provided with heating equipment.

From these facts, unlike facilities such as theaters and concert halls, the arena where the place where the sound absorbing material is provided and the sound absorption is not sufficient and the sound absorbing material is not sufficient is to be a facility where the seating chair of the present invention has sufficient sound absorption. Can be.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view showing a grandstand chair in an arena of the present invention.

FIG. 2 is a schematic perspective view showing a grandstand chair in the arena of the present invention.

[Explanation of symbols]

1: Chair for grandstands, 2: Heating equipment, 3: Heat insulation material, 4
... Opening, 5 ... Surface finishing material, 6 ... Reticulated heater,
7: Back surface finishing material, 8: Grandstand.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A47C 1/16 A47C 1/12 A47C 7/74 G10K 11/16 G10K 15/00

Claims (1)

(57) [Claims] Claims: 1. An air conditioner is installed in an arena , which is a large space facility for sports and the like, and has a heating module inside.
In the bleachers for a chair that put the arena, which is equipped with a heat equipment
Oite, on the back surface of the heating equipment, thermal insulation and sound absorption and with which only set the heat insulating acoustic material which can perform, on the lower surface of the chair, which is the lower part of the heat insulating acoustic material, a plurality of communicating to the heat insulating acoustic material bleachers chair in arena, wherein are only set the opening.