JP2000300373A - Chair for theater hall - Google Patents

Chair for theater hall

Info

Publication number
JP2000300373A
JP2000300373A JP11016899A JP11016899A JP2000300373A JP 2000300373 A JP2000300373 A JP 2000300373A JP 11016899 A JP11016899 A JP 11016899A JP 11016899 A JP11016899 A JP 11016899A JP 2000300373 A JP2000300373 A JP 2000300373A
Authority
JP
Japan
Prior art keywords
film
sound absorption
chair
absorption power
theater hall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP11016899A
Other languages
Japanese (ja)
Other versions
JP3614033B2 (en
Inventor
Takeshi Sakai
毅 境
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Corp
Original Assignee
Yamaha Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yamaha Corp filed Critical Yamaha Corp
Priority to JP11016899A priority Critical patent/JP3614033B2/en
Publication of JP2000300373A publication Critical patent/JP2000300373A/en
Application granted granted Critical
Publication of JP3614033B2 publication Critical patent/JP3614033B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

PROBLEM TO BE SOLVED: To control reverberation characteristic by joining a film to an external woven fabric covering the cushion body of a chair, thereby adjusting sound absorption characteristic such as the frequency characteristic of sound absorption power, the degree of the sound absorption power. SOLUTION: Only the sound absorption power of high compass can be reduced with the reduction of the thickness of a film, and the sound absorption power of low compass can be reduced with the increase of the thickness of the film. At the time of joining the thin film 18 to a wide area, the sound absorption power of a medium and high compass can be reduced larger. When joining the thick film 18 to a narrow area, the sound absorption power of a low compass can be reduced larger, and at the time of joining the thick film 18 to a wide area, the sound absorption power can be reduced in whole compass. For example, by using polyurethane foam as the respective cushions 15, 16 of a back and a seat, a vinyl chloride film 18 of 70 μm thickness is force-fitted to both of the right and left side surfaces of an woven fabric 17 covering the seat cushion 16 through the use of an adhesive and the film 18 is joined to an area equal to or larger than about 30% of the total area of the fabric 17. Thus, a chair 10 for a small theater hall having small sound absorption power over the whole compass of 125 Hz to 4 kHz is obtained.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は劇場ホール用椅子に
関し、椅子の意匠に影響を与えることなく吸音力の周波
数特性や吸音力の大きさを任意に設定、調節し、劇場ホ
ールの残響特性を制御できるようにしたものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair for a theater hall, and arbitrarily sets and adjusts a frequency characteristic of a sound absorbing power and a magnitude of a sound absorbing power without affecting a design of the chair, thereby improving a reverberation characteristic of the theater hall. It is possible to control.

【0002】[0002]

【従来の技術】劇場、コンサートホール等の劇場ホール
に設置されている椅子は観客の座り心地の良さを考慮し
て、背もたれや座部等、人体と接触する部分には、通
常、クッションが使用されている。しかしながら、クッ
ションは音を吸収する吸音力が大きいために、椅子に設
けられているクッションの大きさ、厚さ等によって吸音
力が変化し、劇場ホールの残響特性に大きな影響を与え
るという問題があった。したがって、劇場ホールで使用
される椅子には、観客の座り心地の良さやデザインの良
さだけではなく、吸音力の大きさやその周波数特性等も
適切に制御されたものであることが求められる。そこ
で、クッションをはじめとして、座部、背もたれ部等の
形状や材質等に工夫をこらして劇場ホール用椅子の吸音
力を制御することが試みられてきた。
2. Description of the Related Art Chairs installed in theater halls, such as theaters and concert halls, are usually provided with cushions for parts that come into contact with the human body, such as a backrest or a seat, in consideration of the comfort of the audience. Have been. However, since the cushion has a large sound absorbing power to absorb sound, there is a problem that the sound absorbing power varies depending on the size, thickness, etc. of the cushion provided on the chair, which greatly affects the reverberation characteristics of the theater hall. Was. Therefore, chairs used in theater halls are required to have not only good seating comfort and good design for spectators but also appropriately controlled sound absorption power and its frequency characteristics. Therefore, attempts have been made to control the sound absorption of a chair for a theater hall by devising the shape, material, and the like of a cushion, a seat, a backrest, and the like.

【0003】椅子の吸音力を小さく制御するには、使用
するクッションの厚さや面積を小さくする方法がある。
また、単に椅子の吸音力の大きさを制御するだけでな
く、観客の数にかかわらず劇場ホール全体の吸音力がほ
ぼ一定に保たれるような工夫が劇場ホール用椅子になさ
れてきた。一般に、多くの観客が着席した場合には、空
席が多い場合よりも劇場ホール全体としての吸音力が大
きくなることが知られている。そこで例えば、背もたれ
部等に孔を設け、観客が座っている場合には孔が塞がれ
て椅子自体の吸音力が小さくなり、空席の場合は孔が開
放され吸音力が大きくなるようにする等して、劇場ホー
ル全体としての吸音力が常にほぼ一定になるように椅子
の形状等が検討されてきた。
In order to control the sound absorbing power of the chair to be small, there is a method of reducing the thickness and area of the cushion used.
In addition to controlling the magnitude of the sound absorbing power of the chairs, theater hall chairs have been devised so that the sound absorbing power of the entire theater hall is kept almost constant regardless of the number of spectators. In general, it is known that when a large number of spectators are seated, the sound absorbing power of the entire theater hall becomes larger than when there are many empty seats. Therefore, for example, a hole is provided in the backrest or the like, so that when the audience is sitting, the hole is closed and the sound absorbing power of the chair itself is reduced, and in the case of an empty seat, the hole is opened and the sound absorbing power is increased. For example, chair shapes and the like have been studied so that the sound absorbing power of the entire theater hall is always substantially constant.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、このよ
うに椅子に使用するクッションの大きさを変化させた
り、座部、背もたれ部等の形状や材質等に工夫をこらし
て吸音力を変化させ残響特性を制御しようとすると、椅
子のデザインや観客の座り心地等の意匠に大きな影響を
与える場合が多かった。また、製造工程も増えて製造コ
ストがかかった。したがって、意匠とともに残響特性を
満足する劇場ホール用椅子を容易に得ることは非常に困
難であった。
However, the reverberation characteristic is changed by changing the size of the cushion used for the chair, or changing the sound absorbing power by devising the shape and material of the seat and the backrest. In many cases, trying to control this has a significant effect on the design of the chair and the design of the audience, such as sitting comfort. In addition, the number of manufacturing steps has increased, and manufacturing costs have increased. Therefore, it has been extremely difficult to easily obtain a theater hall chair that satisfies the reverberation characteristics together with the design.

【0005】本発明は前記事情に鑑みてなされたもの
で、椅子の意匠に影響を与えることなく吸音力の周波数
特性や吸音力の大きさ等の吸音力特性を任意に設定、調
節し、残響特性を制御できるような劇場ホール用椅子を
提供することである。
The present invention has been made in view of the above circumstances, and arbitrarily sets and adjusts the sound absorption characteristics such as the frequency characteristics of the sound absorption and the magnitude of the sound absorption without affecting the design of the chair. An object of the present invention is to provide a theater hall chair whose characteristics can be controlled.

【0006】[0006]

【課題を解決するための手段】かかる課題は、椅子のク
ッション体を覆う外装織物にフィルムが接合されてなる
劇場ホール用椅子によって解決される。上記フィルムは
ポリ塩化ビニルフィルムまたはポリウレタンフィルムで
あることが望ましい。
This problem is solved by a theater hall chair in which a film is bonded to an exterior fabric covering a cushion body of the chair. The film is desirably a polyvinyl chloride film or a polyurethane film.

【0007】[0007]

【発明の実施の形態】以下、本発明を詳しく説明する。
図1は、本発明の劇場ホール用椅子10の一例を示す図
である。劇場ホール用椅子10は、床面に直立設置され
た一対の側板12と、これら側板12の後側縁に掛け渡
された背面板13と、各側板12の中央部間に略水平に
固定された下面板14とから概略構成され、各側板12
の上端にはひじ掛け部11が形成されている。背面板1
3の前面および下面板14の上面には、硬質ポリウレタ
ン、軟質ポリウレタン等のポリウレタンフォーム、グラ
スウール、牛毛フェルト等、弾力性と吸音性を有する材
料からなるクッション体である背クッション15および
座クッション16がそれぞれ固定されている。背クッシ
ョン15と座クッション16の表面は、少なくとも一部
にフィルム18が接合された外装用の織物17で覆わ
れ、背もたれ部、座部がそれぞれ形成されている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.
FIG. 1 is a diagram showing an example of a theater hall chair 10 of the present invention. The theater hall chair 10 is fixed substantially horizontally between a pair of side plates 12 installed upright on the floor surface, a back plate 13 bridged over the rear edge of these side plates 12, and a central portion of each side plate 12. , And each lower side plate 12
An armrest 11 is formed at the upper end of the armrest. Back plate 1
A back cushion 15 and a seat cushion 16, which are cushion bodies made of a material having elasticity and sound absorbing properties, such as polyurethane foam such as hard polyurethane and soft polyurethane, glass wool, and bovine felt, are provided on the upper surface of the front and lower plates 14 of the third embodiment. Each is fixed. The surfaces of the back cushion 15 and the seat cushion 16 are covered with an exterior fabric 17 to which a film 18 is bonded at least partially, and a backrest portion and a seat portion are formed respectively.

【0008】フィルム18には通常、ポリ塩化ビニル、
ポリウレタン、ポリエチレン、ポリプロピレン等の樹脂
フィルム、アルミニウム等の金属フィルム、紙等の単体
フィルムや、これらの単体フィルムを2種類以上貼合し
たラミネーションフィルムが用いられ、好ましくはポリ
塩化ビニル、ポリウレタンが用いられる。ラミネーショ
ンフィルムは、例えば、接着剤を介して複数のフィルム
を積層させるグルーラミネーション法や、溶融樹脂同
志、あるいは溶融樹脂と紙、アルミニウム箔、樹脂フィ
ルムなどの基材とを圧着して積層させる押出ラミネーシ
ョン法等によって得られるものであって、その製法には
特に制限はない。また、フィルム18の厚さも特に制限
はないが、通常1〜500μm、好ましくは10〜20
0μmの厚さのフィルム18が使用される。
The film 18 is usually made of polyvinyl chloride,
Polyurethane, resin films such as polyethylene and polypropylene, metal films such as aluminum, simple films such as paper, and lamination films obtained by laminating two or more of these simple films are used, and preferably, polyvinyl chloride or polyurethane is used. . The lamination film is, for example, a glue lamination method in which a plurality of films are laminated via an adhesive, or an extrusion lamination in which the molten resin is laminated by pressing the molten resin and a base material such as paper, aluminum foil, and a resin film. It is obtained by a method or the like, and the production method is not particularly limited. The thickness of the film 18 is not particularly limited, but is usually 1 to 500 μm, preferably 10 to 20 μm.
A film 18 having a thickness of 0 μm is used.

【0009】これらの単体フィルムやラミネーションフ
ィルムを、背クッション15や座クッション16を覆う
織物17の少なくとも一部に接合することによって、織
物17の通気性を制御し、椅子の吸音力特性を任意に調
節、設定できる。また、使用するフィルム18の種類、
フィルム18の厚さ等は椅子に要求される吸音力特性に
応じて適宜選択できる。例えば、接合するフィルム18
の厚さが薄いほど、高音域の吸音力のみを低減でき、好
ましくは厚さが50μm以下のフィルム18を使用する
と500Hz〜4kHz程度の中高音域の吸音力を低減
できる。また、接合するフィルム18の厚さが厚いほ
ど、低音域の吸音力を低減できる。 125Hz〜4k
Hz程度の全音域で、吸音力を小さくする場合には、6
0〜80μm程度の中程度の厚さのフィルム18を使用
することが好ましい。また、フィルム18の通気性が大
きいほど吸音力を低下させる効果は小さく、通気性が小
さいほど吸音力を大きく低下させる。
By joining these single films or lamination films to at least a part of the fabric 17 covering the back cushion 15 and the seat cushion 16, the breathability of the fabric 17 is controlled, and the sound absorption characteristics of the chair can be arbitrarily adjusted. Can be adjusted and set. Also, the type of the film 18 to be used,
The thickness and the like of the film 18 can be appropriately selected according to the sound absorption characteristics required for the chair. For example, the bonding film 18
As the thickness of the film 18 is thinner, only the sound absorbing power in the high frequency range can be reduced. Preferably, when the film 18 having a thickness of 50 μm or less is used, the sound absorbing power in the middle and high frequency range of about 500 Hz to 4 kHz can be reduced. Further, as the thickness of the film 18 to be bonded is larger, the sound absorbing power in the low frequency range can be reduced. 125Hz-4k
To reduce the sound absorption in the entire sound range of about
It is preferable to use a film 18 having a medium thickness of about 0 to 80 μm. Further, the effect of lowering the sound absorbing power is smaller as the air permeability of the film 18 is larger, and the sound absorbing power is more greatly reduced as the air permeability is smaller.

【0010】フィルム18は、背クッション15や座ク
ッション16を覆う織物17の任意の面に、任意の大き
さで接合させることができ、織物17の一部に接合され
ていてもよいし、織物17の全面に接合されていてもよ
い。フィルム18を接合する場所やその面積は、椅子に
要求される吸音力特性に応じて適宜選択できるが、フィ
ルム18は織物17の通気性を制御するものであるの
で、直接大気と接触している面の織物17に接合される
ことが好ましい。背クッション15の面のうち後面は、
背面板13に接しているので通常、織物17で被われて
いない。また、織物17で被われている場合において
も、後面は直接大気と接触していないので、通気性を有
していない。したがって、背クッション15を覆う織物
17にフィルム18を接合する場合には、通常、前面、
上面、下面、左右の側面の少なくともいずれかの面を覆
う織物17に接合されることが好ましい。また、座クッ
ション16の面のうち下面と後面は、それぞれ下面板1
4、背面板13に接しているので、通常、織物17で被
われていない。また、織物17で被われている場合にお
いても、下面と後面は直接大気と接触していないので、
通気性を有していない。したがって、座クッション16
を覆う織物17にフィルム18を接合する場合には、通
常、前面、上面、左右の側面の少なくともいずれかの面
を覆う織物17に接合されることが好ましい。
The film 18 can be joined to an arbitrary surface of the fabric 17 covering the back cushion 15 and the seat cushion 16 in an arbitrary size, may be joined to a part of the fabric 17, or may be joined to the fabric 17. 17 may be bonded to the entire surface. The location and area of the film 18 to be bonded can be appropriately selected according to the sound absorption characteristics required for the chair. Preferably, it is bonded to the face fabric 17. The rear surface of the back cushion 15 is
Since it is in contact with the back plate 13, it is not usually covered with the fabric 17. Further, even when the rear surface is covered with the woven fabric 17, the rear surface is not in direct contact with the atmosphere, and thus does not have air permeability. Therefore, when bonding the film 18 to the fabric 17 covering the back cushion 15, the front face,
It is preferable to be joined to the fabric 17 covering at least one of the upper surface, the lower surface, and the left and right side surfaces. The lower surface and the rear surface of the surface of the seat cushion 16 are the lower plate 1 respectively.
4. Since it is in contact with the back plate 13, it is not usually covered with the fabric 17. Also, even in the case of being covered with the fabric 17, since the lower surface and the rear surface are not in direct contact with the atmosphere,
Does not have air permeability. Therefore, the seat cushion 16
When the film 18 is bonded to the woven fabric 17 that covers the woven fabric 17, it is usually preferable that the film 18 is bonded to the woven fabric 17 that covers at least one of the front surface, the upper surface, and the left and right side surfaces.

【0011】背クッション15と座クッション16を覆
う織物17のうちフィルム18が接合される部分の、織
物17の総面積に対する割合は特に制限はなく、フィル
ムの種類や、要求される吸音力特性によって適宜選択で
きる。例えば、フィルム18を接合する面積が大きいほ
ど、特に中高音域の吸音力を大きく低減でき、好ましく
は椅子の総面積の50%以上の面積にフィルム18を接
合すると500Hz〜4kHzの中高音域の吸音力を大
きく低減できる。ここで、織物17の総面積とは、背ク
ッション15および座クッション16の面のうち、直接
大気と接触している面の総面積であって、通常、背クッ
ション15の前面、上面、下面、左右の側面と、座クッ
ション16の前面、上面、左右の側面の総面積である。
フィルム18は、織物17の表側、裏側のどちらに接合
してもよく、両側に接合してもよいが、椅子の意匠に影
響を与えないことから織物17の裏側に接合することが
好ましい。
The ratio of the portion of the woven fabric 17 covering the back cushion 15 and the seat cushion 16 to which the film 18 is bonded to the total area of the woven fabric 17 is not particularly limited, and depends on the type of the film and the required sound absorption characteristics. It can be selected as appropriate. For example, the larger the area to which the film 18 is bonded, the more the sound absorbing power in the middle and high frequency range can be greatly reduced, and preferably, when the film 18 is bonded to an area of 50% or more of the total area of the chair, the middle to high frequency range of 500 Hz to 4 kHz. Sound absorption power can be greatly reduced. Here, the total area of the fabric 17 is the total area of the surfaces of the back cushion 15 and the seat cushion 16 which are in direct contact with the atmosphere. The total area of the left and right side surfaces, the front surface, the upper surface, and the left and right side surfaces of the seat cushion 16.
The film 18 may be bonded to either the front side or the back side of the fabric 17 or may be bonded to both sides, but is preferably bonded to the back side of the fabric 17 because it does not affect the design of the chair.

【0012】フィルム18の織物17への接合方法は、
通常使用される接着剤を用いて接着する方法や、熱融着
法、圧着法、縫着法等によって行なわれる。接着剤を用
いて接着する方法は、フィルムの全面に接着剤をつける
方法でもよいし、点状につける方法でもよい。接合方法
はフィルムの種類によって異なり、特に制限はない。
The method of joining the film 18 to the fabric 17 is as follows.
It is performed by a method of bonding using a commonly used adhesive, a heat fusion method, a pressure bonding method, a sewing method, or the like. The method of bonding using an adhesive may be a method of applying an adhesive to the entire surface of the film, or a method of applying a dot. The joining method differs depending on the type of the film, and is not particularly limited.

【0013】以上のように、フィルム18の種類や厚
さ、その接合面積、接合面等は、要求される吸音力の周
波数特性や吸音力の大きさによって適宜選択される。こ
こで、接合するフィルム18の厚さおよびその接合面積
と、得られる椅子10の吸音力の周波数特性との相関関
係を表1にまとめる。すなわち、接合するフィルム18
の厚さが薄いほど、高音域の吸音力のみを低減でき、厚
さが厚いほど、低音域の吸音力を低減できる。また、フ
ィルム18の接合面積が大きいほど、特に中高音域の吸
音力を大きく低減できるので、薄いフィルム18を広い
面積に接合させることによって、中高音域の吸音力をよ
り大きく低減できる。一方、厚いフィルム18を狭い面
積に接合させることによって、低音域の吸音力をより大
きく低減できる。さらに、厚いフィルム18を広い面積
に接合させることによって、全音域で吸音力を低減させ
ることもできる。例えば、背クッション15および座ク
ッション16としてポリウレタンフォームを使用し、座
クッション16を覆う織物17の左右両方の側面に、厚
さ70μmのポリ塩化ビニルフィルム18を接着剤を用
いて圧着し、織物17の総面積の約30%以上の面積に
フィルム18を接合したものとすると、フィルム18を
圧着しない場合と比較して、125Hz〜4kHzの全
音域にわたって吸音力の小さな劇場ホール用椅子10を
得ることができる。また、背クッション15および座ク
ッション16としてポリウレタンフォームを使用し、背
クッション15の前面、上面、下面、左右の側面および
座クッション16の前面、上面、下面、左右の側面に厚
さ30μmのポリウレタンフィルム18を熱融着し、織
物17総面積の100%の面積にフィルム18を接合し
たものとすると、フィルム18を圧着しない場合と比較
して、1〜4kHzの高音域の吸音力のみが特に小さく
制御された劇場ホール用椅子10を得ることができる。
この場合ポリウレタンフィルム18の接合面積を小さく
するにしたがって、得られる劇場ホール用椅子10の吸
音力の周波数特性は、フィルム18を圧着しない椅子1
0の特性に近づいていく。
As described above, the type and thickness of the film 18, the bonding area, the bonding surface, and the like are appropriately selected according to the required frequency characteristics of the sound absorbing power and the magnitude of the sound absorbing power. Here, Table 1 summarizes the correlation between the thickness of the film 18 to be bonded, the bonding area thereof, and the frequency characteristic of the sound absorbing power of the chair 10 obtained. That is, the bonding film 18
As the thickness is smaller, only the sound absorbing power in the higher frequency range can be reduced, and as the thickness is larger, the sound absorbing power in the lower frequency range can be reduced. Also, as the bonding area of the film 18 is larger, the sound absorbing power particularly in the middle and high frequency range can be greatly reduced. Therefore, by bonding the thin film 18 to a wide area, the sound absorbing power in the middle and high frequency range can be further reduced. On the other hand, by joining the thick film 18 to a small area, the sound absorbing power in the low-frequency range can be further reduced. Further, by joining the thick film 18 to a large area, the sound absorbing power can be reduced in the entire sound range. For example, a polyurethane foam is used as the back cushion 15 and the seat cushion 16, and a 70 μm-thick polyvinyl chloride film 18 is pressure-bonded to both left and right sides of the fabric 17 covering the seat cushion 16 with an adhesive to form the fabric 17. Assuming that the film 18 is bonded to an area of about 30% or more of the total area of the theater, a theater hall chair 10 having a small sound absorption over the entire sound range of 125 Hz to 4 kHz is obtained as compared with a case where the film 18 is not pressed. Can be. Further, a polyurethane foam is used as the back cushion 15 and the seat cushion 16, and a polyurethane film having a thickness of 30 μm is formed on the front, upper, lower and left and right sides of the back cushion 15 and the front, upper, lower and left and right sides of the seat cushion 16. When the film 18 is bonded to the area of 100% of the total area of the woven fabric 17 by heat fusion, only the sound absorbing power in the high-frequency range of 1 to 4 kHz is particularly small as compared with the case where the film 18 is not pressed. A controlled theater hall chair 10 can be obtained.
In this case, as the bonding area of the polyurethane film 18 is reduced, the frequency characteristic of the sound absorbing power of the chair 10 for a theater hall to be obtained is as follows.
It approaches the characteristic of 0.

【0014】[0014]

【表1】 [Table 1]

【0015】このように背クッション15や座クッショ
ン16を覆う織物17の少なくとも一部にポリ塩化ビニ
ル、ポリウレタン等のフィルム18を接合することによ
って、織物17の通気性を制御することができる。よっ
て、背クッション15や座クッション16の大きさを変
化させたり、下面板14等の座部、背面板13等の背も
たれ部の形状や材質等に工夫をこらしたりすることな
く、劇場ホール用椅子10の吸音力の周波数特性や吸音
力の大きさを変化させて、劇場ホールの残響特性を制御
することができる。したがって、観客の座り心地やデザ
イン等の椅子の意匠にほとんど影響を与えることなく、
劇場ホールへの設置に最適な劇場用ホール椅子10を任
意に、かつ、容易に得ることができる。
By bonding the film 18 made of polyvinyl chloride, polyurethane or the like to at least a part of the fabric 17 covering the back cushion 15 and the seat cushion 16 in this manner, the air permeability of the fabric 17 can be controlled. Therefore, the chair for the theater hall can be used without changing the size of the back cushion 15 or the seat cushion 16 or changing the shape and material of the seat portion such as the lower plate 14 and the backrest portion such as the back plate 13. The reverberation characteristics of the theater hall can be controlled by changing the frequency characteristics of the sound absorption power and the magnitude of the sound absorption power. Therefore, there is almost no influence on the chair design such as the seating comfort and design of the audience,
A theater hall chair 10 optimal for installation in a theater hall can be arbitrarily and easily obtained.

【0016】以下本発明を実施例を示して具体的に説明
する。 [実施例1]軟質ポリウレタンフォームからなる背クッ
ション15および座クッション16を、背面板13上お
よび下面板14上に設けた椅子10を製造し、背クッシ
ョン15および座クッション16を、合成繊維と毛、綿
等を混紡した繊維からなる織物17で覆った。この際、
織物17は、その内側に厚さ70μmのポリ塩化ビニル
樹脂製フィルム18を接着剤で接合し、熱定着させたも
のを使用した。フィルム18の接合面積は、織物17の
総面積に対して100%の面積であった。この椅子10
を容積が267.55m3 、温度20.6℃、湿度9
0.3%の残響室に8脚設置し、PLD/Deep−w
ell法で125Hz〜4kHzの周波数における残響
室の吸音率を測定した。その結果を図2に示す。また、
得られた残響室の吸音率を用いて、この椅子10を容積
8739m3 、表面積3764m2 の劇場ホールに61
8脚設置した場合の、劇場ホールの平均吸音率αと残響
時間RTを計算して求めた。その結果を図3(a)およ
び(b)に示す。
Hereinafter, the present invention will be described specifically with reference to examples. [Example 1] A chair 10 in which a back cushion 15 and a seat cushion 16 made of a flexible polyurethane foam were provided on a back plate 13 and a bottom plate 14 was manufactured, and the back cushion 15 and the seat cushion 16 were made of synthetic fiber and hair. , And a fabric 17 made of fibers mixed with cotton or the like. On this occasion,
The woven fabric 17 used was obtained by bonding a polyvinyl chloride resin film 18 having a thickness of 70 μm to the inside of the woven fabric 17 with an adhesive and thermally fixing the film. The bonding area of the film 18 was 100% of the total area of the fabric 17. This chair 10
Has a volume of 267.55 m 3 , a temperature of 20.6 ° C., and a humidity of 9
Eight legs are installed in a 0.3% reverberation room, and PLD / Deep-w
The sound absorption coefficient of the reverberation chamber at a frequency of 125 Hz to 4 kHz was measured by the ell method. The result is shown in FIG. Also,
Using the obtained sound absorption coefficient of the reverberation room, this chair 10 is placed in a theater hall having a volume of 8739 m 3 and a surface area of 3764 m 2 , 61
The average sound absorption coefficient α and the reverberation time RT of the theater hall when eight legs were installed were calculated and obtained. The results are shown in FIGS. 3 (a) and (b).

【0017】ここでPLD/Deep−well法と
は、特開平3−276031号公報で報告されている吸
音率測定法であり、面積効果と音の拡散不足に起因する
吸音率測定の誤差を除去し、高精度な吸音率が測定でき
る測定方法である。面積効果は、反射性囲い(側壁:D
eep−well)を椅子等の試験体の周囲に設けるこ
とで回避でき、音の拡散不足は、完全拡散音場を想定し
て吸音率の計算式の残響時間を修正することで補正(P
LD補正)できる。また、劇場ホールの平均吸音率αは
下記式(I)を用いて求めた。 α=A/S…(I) (式中Aは椅子10、天井等劇場ホール内のすべての建
築材料(吸音要素)の吸音率の総和で、Sは劇場ホール
の表面積(m2 )である。) また、劇場ホールの残響時間RT(秒)は、下記式(I
I)を用いて求めた。 RT=KV/−S・ln(1−α)…(II) (式中、Kは定数でありMKS単位系で0.161であ
る。また、Vは室の容積(m3 )、Sは室の表面積(m
2 )、αは式(I)で得られた平均吸音力である。な
お、lnは自然対数である。)
Here, the PLD / Deep-well method is a sound absorption measurement method reported in Japanese Unexamined Patent Publication No. Hei 3-276031, and eliminates errors in sound absorption measurement due to the area effect and insufficient diffusion of sound. However, this is a measurement method that can measure a highly accurate sound absorption coefficient. The area effect is due to the reflective enclosure (side wall: D
(e.g., ep-well) can be avoided around a test object such as a chair, and insufficient diffusion of sound can be corrected by correcting the reverberation time of the sound absorption coefficient calculation formula assuming a completely diffused sound field (P
LD correction). The average sound absorption coefficient α of the theater hall was determined using the following equation (I). α = A / S (I) (where A is the sum of the sound absorption coefficients of all building materials (sound absorbing elements) in the theater hall such as the chair 10 and the ceiling, and S is the surface area (m 2 ) of the theater hall. .) Further, the reverberation time RT (second) of the theater hall is calculated by the following equation (I).
It was determined using I). RT = KV / −S · ln (1-α) (II) (where K is a constant and is 0.161 in MKS unit system. V is the volume of the chamber (m 3 ), and S is Room surface area (m
2 ), α is the average sound absorption obtained by the formula (I). Note that ln is a natural logarithm. )

【0018】[比較例1]織物17の内側にフィルム1
8を接合しない以外は実施例1と同様にして、椅子10
を製造し、実施例1と同様にして、残響室の吸音率を測
定した。その結果を図2に示す。また、実施例1と同様
にして劇場ホールの平均吸音率αと残響時間RTを計算
して求めた。その結果を図3に示す。
[Comparative Example 1] A film 1 was placed on the inside of a woven fabric 17.
The chair 10 is the same as the embodiment 1 except that the chair 10 is not joined.
Was manufactured, and the sound absorption coefficient of the reverberation chamber was measured in the same manner as in Example 1. The result is shown in FIG. The average sound absorption coefficient α and the reverberation time RT of the theater hall were calculated and obtained in the same manner as in Example 1. The result is shown in FIG.

【0019】図2から明らかなように、椅子10のクッ
ション15、16を覆う外装織物に厚さ70μmのポリ
塩化ビニルフィルムを、100%の面積で接合すること
により、125Hz〜4kHzの全音域で吸音力が小さ
な椅子10を得ることができた。また、図3から明らか
なように、この椅子10を劇場ホールに設置すると、1
25Hz〜4kHzの全音域で吸音力が小さく、残響時
間が長い劇場ホールにすることができる。
As can be seen from FIG. 2, a 70 μm thick polyvinyl chloride film is bonded to the outer woven fabric covering the cushions 15 and 16 of the chair 10 in an area of 100% so that the entire sound range of 125 Hz to 4 kHz can be obtained. The chair 10 having a small sound absorbing power was obtained. Further, as is apparent from FIG. 3, when this chair 10 is installed in a theater hall, 1
A theater hall having a small sound absorption power in the entire sound range of 25 Hz to 4 kHz and a long reverberation time can be provided.

【0020】[実施例2]軟質ポリウレタンフォームか
らなる背クッション15および座クッション16を、背
面板13上および下面板14上に設けた椅子10を製造
し、背クッション15および座クッション16を、合成
繊維と毛、綿等を混紡した繊維からなる織物17で覆っ
た。この際、織物17は、その内側に厚さ30μmのポ
リウレタン樹脂製フィルム18を接着剤で接合し、熱定
着させたものを使用した。フィルム18の接合面積は、
織物17の総面積に対して100%の面積であった。こ
の椅子10を容積が267.55m3 、温度25.1
℃、湿度94.5%の残響室に8脚設置し、実施例1と
同様にして125Hz〜4kHzの周波数における残響
室の吸音率を測定した。その結果を図4に示す。また、
残響室の吸音率を用いて、この椅子10を容積8739
3 、表面積3765m2 の劇場ホールに618席設置
した場合の劇場ホールの平均吸音率αと残響時間RTを
計算して求めた。その結果を図5(a)および(b)に
示す。
Example 2 A chair 10 having a back cushion 15 and a seat cushion 16 made of a flexible polyurethane foam provided on a back plate 13 and a lower plate 14 is manufactured, and the back cushion 15 and the seat cushion 16 are synthesized. It was covered with a woven fabric 17 made of a fiber obtained by blending fiber, wool, cotton and the like. At this time, the fabric 17 was obtained by bonding a polyurethane resin film 18 having a thickness of 30 μm to the inside of the fabric 17 with an adhesive and thermally fixing the film. The bonding area of the film 18 is
The area was 100% of the total area of the woven fabric 17. The chair 10 has a volume of 267.55 m 3 and a temperature of 25.1.
Eight legs were installed in a reverberation room at 9 ° C. and a humidity of 94.5%, and the sound absorption coefficient of the reverberation room at a frequency of 125 Hz to 4 kHz was measured in the same manner as in Example 1. FIG. 4 shows the results. Also,
Using the sound absorption coefficient of the reverberation room, this chair 10
The average sound absorption coefficient α and the reverberation time RT of the theater hall when 618 seats were installed in a theater hall having m 3 and a surface area of 3765 m 2 were calculated and obtained. The results are shown in FIGS. 5 (a) and (b).

【0021】[比較例2]織物17の内側にフィルム1
8を接合しない以外は実施例2と同様にして、椅子10
を製造し、実施例2と同様にして、残響室の吸音率を測
定した。その結果を図4に示す。また、実施例2と同様
にして劇場ホールの平均吸音率αと残響時間RTを計算
して求めた。その結果を図5に示す。
[Comparative Example 2] The film 1 was placed inside the woven fabric 17.
8 in the same manner as in Example 2 except that the chair 10 is not joined.
Was manufactured, and the sound absorption coefficient of the reverberation chamber was measured in the same manner as in Example 2. FIG. 4 shows the results. The average sound absorption coefficient α and the reverberation time RT of the theater hall were calculated and obtained in the same manner as in Example 2. The result is shown in FIG.

【0022】図4から明らかなように、椅子10のクッ
ション15、16を覆う外装織物に厚さ30μmのポリ
ウレタンフィルムを、100%の面積で接合することに
より、1〜4kHzの高音域で特に吸音力が小さな椅子
10を得ることができた。また、図5から明らかなよう
に、この椅子10を劇場ホールに設置すると、1〜4k
Hzの高音域で吸音力が小さく、残響時間が長い劇場ホ
ールにすることができる。
As can be seen from FIG. 4, a 30 μm-thick polyurethane film is joined to the outer woven fabric covering the cushions 15 and 16 of the chair 10 in an area of 100%, so that sound is absorbed particularly in a high sound range of 1 to 4 kHz. I could get a chair 10 with little power. Also, as is apparent from FIG. 5, when this chair 10 is installed in a theater hall, it takes 1 to 4 k.
It is possible to provide a theater hall with a low sound absorption power in a high frequency range of Hz and a long reverberation time.

【0023】[0023]

【発明の効果】本発明の劇場ホール用椅子は椅子のクッ
ション体を覆う外装織物にフィルムが接合されてなるも
のであるので、外装織物の通気性を制御することがで
き、椅子のデザインや観客の座り心地等の意匠に影響を
与えることなく、吸音力の周波数特性や吸音力の大きさ
等の吸音力特性を任意に調節、設定することができる。
このような劇場ホール用椅子を使用することによって、
劇場ホールの残響特性を最適に制御することができる。
また、本発明の劇場ホール用椅子は、上記フィルムをポ
リ塩化ビニルまたはポリウレタンフィルムとすることが
できるので、特に効果的に吸音力特性を制御できる。
The chair for a theater hall of the present invention is formed by bonding a film to an exterior fabric covering the cushion of the chair, so that the air permeability of the exterior fabric can be controlled, and the chair design and audience can be controlled. It is possible to arbitrarily adjust and set the sound absorption characteristics such as the frequency characteristics of the sound absorption and the magnitude of the sound absorption without affecting the design such as the sitting comfort.
By using such theater hall chairs,
The reverberation characteristics of the theater hall can be optimally controlled.
Further, in the chair for a theater hall of the present invention, since the film can be a polyvinyl chloride or polyurethane film, the sound absorption characteristics can be particularly effectively controlled.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の劇場用ホール椅子の一例を示す縦断面
図である。
FIG. 1 is a longitudinal sectional view showing an example of a theater hall chair of the present invention.

【図2】本発明の実施例の残響室の吸音率を示すグラフ
である。
FIG. 2 is a graph showing a sound absorption coefficient of a reverberation room according to the embodiment of the present invention.

【図3】本発明の実施例の劇場ホールの平均吸音率およ
び残響時間の計算値を示すグラフである。
FIG. 3 is a graph showing calculated values of an average sound absorption coefficient and a reverberation time of a theater hall according to the embodiment of the present invention.

【図4】本発明の実施例の残響室の吸音率を示すグラフ
である。
FIG. 4 is a graph showing a sound absorption coefficient of a reverberation room according to the embodiment of the present invention.

【図5】本発明の実施例の劇場ホールの平均吸音率およ
び残響時間の計算値を示すグラフである。
FIG. 5 is a graph showing calculated values of an average sound absorption coefficient and a reverberation time of a theater hall according to an example of the present invention.

【符号の説明】[Explanation of symbols]

10…劇場ホール用椅子、15…背クッション、16…
座クッション、17…織物、18…フィルム
10 ... theater hall chair, 15 ... back cushion, 16 ...
Seat cushion, 17 ... fabric, 18 ... film

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 椅子のクッション体を覆う外装織物にフ
ィルムが接合されてなる劇場ホール用椅子。
1. A theater hall chair in which a film is joined to an exterior fabric covering a cushion body of the chair.
【請求項2】 フィルムがポリ塩化ビニルフィルムまた
はポリウレタンフィルムである請求項1に記載の劇場ホ
ール用椅子。
2. The theater hall chair according to claim 1, wherein the film is a polyvinyl chloride film or a polyurethane film.
JP11016899A 1999-04-16 1999-04-16 Theater hall chairs Expired - Fee Related JP3614033B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11016899A JP3614033B2 (en) 1999-04-16 1999-04-16 Theater hall chairs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11016899A JP3614033B2 (en) 1999-04-16 1999-04-16 Theater hall chairs

Publications (2)

Publication Number Publication Date
JP2000300373A true JP2000300373A (en) 2000-10-31
JP3614033B2 JP3614033B2 (en) 2005-01-26

Family

ID=14528784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11016899A Expired - Fee Related JP3614033B2 (en) 1999-04-16 1999-04-16 Theater hall chairs

Country Status (1)

Country Link
JP (1) JP3614033B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013156090A (en) * 2012-01-27 2013-08-15 Tokyo Metropolitan Industrial Technology Research Institute Acoustic absorptivity measurement apparatus, acoustic absorptivity measurement method, and acoustic absorptivity measurement program

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013156090A (en) * 2012-01-27 2013-08-15 Tokyo Metropolitan Industrial Technology Research Institute Acoustic absorptivity measurement apparatus, acoustic absorptivity measurement method, and acoustic absorptivity measurement program

Also Published As

Publication number Publication date
JP3614033B2 (en) 2005-01-26

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