JP2575173Y2 - Keyboard with speaker - Google Patents

Keyboard with speaker

Info

Publication number
JP2575173Y2
JP2575173Y2 JP1992058226U JP5822692U JP2575173Y2 JP 2575173 Y2 JP2575173 Y2 JP 2575173Y2 JP 1992058226 U JP1992058226 U JP 1992058226U JP 5822692 U JP5822692 U JP 5822692U JP 2575173 Y2 JP2575173 Y2 JP 2575173Y2
Authority
JP
Japan
Prior art keywords
speaker
case
keyboard
sound
attached
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.)
Expired - Lifetime
Application number
JP1992058226U
Other languages
Japanese (ja)
Other versions
JPH0621096U (en
Inventor
匡文 箕輪
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.)
Kawai Musical Instrument Manufacturing Co Ltd
Original Assignee
Kawai Musical Instrument Manufacturing Co Ltd
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 Kawai Musical Instrument Manufacturing Co Ltd filed Critical Kawai Musical Instrument Manufacturing Co Ltd
Priority to JP1992058226U priority Critical patent/JP2575173Y2/en
Publication of JPH0621096U publication Critical patent/JPH0621096U/en
Application granted granted Critical
Publication of JP2575173Y2 publication Critical patent/JP2575173Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【考案の詳細な説明】[Detailed description of the invention]

【０００１】[0001]

【産業上の利用分野】本考案は、上ケース及び下ケース
から成るケース内にスピーカを収容したキーボードに関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard in which a speaker is accommodated in a case including an upper case and a lower case.

【０００２】[0002]

【従来の技術】上述した従来の電子鍵盤楽器として、上
ケースにスピーカを直接取り付けただけの構造のもの
か、又は、下ケースに密閉構造あるいはバスレフ構造の
スピーカボックスを取り付けたものが知られている。2. Description of the Related Art As the above-mentioned conventional electronic keyboard instruments, those having a structure in which a speaker is directly attached to an upper case or those having a sealed case or a bass reflex speaker box attached to a lower case are known. I have.

【０００３】[0003]

【考案が解決しようとする課題】上ケースにスピーカを
直接取り付けただけのものは、ケースの鍵盤収容部や上
ケースと下ケースの嵌合部から、スピーカの背面からの
音が演奏者に向け漏れてスピーカの背面からの音と干渉
し、そのため音質が低下していた。また、下ケースにス
ピーカボックスを取り付けたものは、特にシングルキー
ボードでは大型化してコンパクトにならず、また部品コ
スト及び組立コストが増大するという欠点があった。[Problems to be Solved by the Invention] In the case where the speaker is simply attached directly to the upper case, the sound from the back of the speaker is directed to the player from the keyboard housing portion of the case or the fitting portion of the upper case and the lower case. The sound leaked and interfered with the sound from the back of the speaker, thereby deteriorating the sound quality. In addition, the one in which the speaker box is attached to the lower case has a drawback that it is not large and compact, especially in a single keyboard, and that the parts cost and the assembly cost increase.

【０００４】本考案は、従来のこのような欠点を解消
し、ケースが小型で構造が簡単であり、またコスト安で
あって、しかも音質が向上するキーボードを提供するこ
とをその目的とするものである。[0004] The present invention solves the above-mentioned disadvantages of the prior art, and has a small case, a simple structure, and a low cost.
There are, moreover it is an object thereof to provide a keyboard for improved sound quality.

【０００５】[0005]

【課題を解決するため手段】本考案は、上記の目的を達
成するために、鍵盤を取り付けた下ケースと、鍵盤を露
出する開口を有する上ケースから成るケース内にスピー
カを収容したキーボードにおいて、前記上ケースの放音
孔部にスピーカを取り付け、該スピーカに対向する位置
に、前記下ケースの底板を内方に突出し且つ該下ケース
の後方側板に開口する凹部を設けると共に、該凹部に放
音孔を形成し、該放音孔を包囲する環状リブを形成し
て、該環状リブに筒体を取り付け、その上端部を前記ス
ピーカの背面に密着して筒体内に前記スピーカを収容し
たことを特徴とするスピーカーを有するキーボード。According to the present invention, in order to achieve the above object, a lower case having a keyboard attached thereto and a keyboard being exposed.
In a keyboard in which a speaker is housed in a case consisting of an upper case having an opening for projecting, a speaker is attached to a sound emission hole of the upper case, and a position facing the speaker is provided.
, The projecting part of the bottom plate of the lower case inwardly and Rutotomoni a recess that opens to the rear side plate of the lower casing, to form a sound emission hole to the recess, forms an annular rib surrounding the sound outlet
A cylindrical body is attached to the annular rib, and the upper end is
In close contact with the back of the speaker housing the speaker into a cylindrical body
Keyboard having a speaker, characterized in that the.

【０００６】[0006]

【作用】上ケースの放音孔部に取り付けられたスピーカ
に対向する位置に、下ケースの底板を内方に突出し且つ
該下ケースの後方側板に開口する凹部を設けると共に、
該凹部に放音孔を形成し、該放音孔を包囲する環状リブ
を形成して、該環状リブに筒体を取り付け、その上端部
を前記スピーカの背面に密着して筒体内に前記スピーカ
を収容したから、卓上に配置されているとき、スピーカ
の背面から放出される音は、下ケースの放音孔から下ケ
ースの凹部を経て下ケースの後方に放出され、この音は
スピーカの前面から上ケースの放音孔を経て放出される
音と干渉することがない。またスピーカの背面からの音
は下ケースの放音孔から外部に放出されるので、スピー
カのコーン紙の振動が抑えられることがなく、下ケース
の放音孔の大きさを最適値に設定すれば、スピーカの特
性に最適なダンパー効果が得られる。[ Function ] A speaker attached to the sound emission hole of the upper case
At the position opposite to, project the bottom plate of the lower case inward and
Along with providing a concave portion that opens in the rear side plate of the lower case,
An annular rib that forms a sound emission hole in the recess and surrounds the sound emission hole
And a cylindrical body is attached to the annular rib.
The speaker is closely attached to the back of the speaker and
When placed on a table, the sound emitted from the back of the speaker will not pass through the sound output hole of the lower case.
The sound is emitted to the rear of the lower case through the concave portion of the case , and this sound does not interfere with the sound emitted through the sound emission hole of the upper case from the front of the speaker. In addition, since sound from the back of the speaker is emitted to the outside through the sound emission hole of the lower case, vibration of the speaker cone paper is not suppressed, and the size of the sound emission hole of the lower case can be set to an optimum value. Thus, a damper effect optimal for the characteristics of the speaker can be obtained.

【０００７】[0007]

【実施例】以下本考案の実施例を図面につき説明する。
図面において、１は電子鍵盤楽器のケース、２は鍵盤、
３はスピーカである。ケース１は、鍵盤２を露出する開
口４を有する上ケース１1と下ケース１2とから成る。上
ケース１1は後部に左右２個の放音孔５、５を有し、そ
の内面には放音孔５、５に対向してスピーカ３、３がネ
ジで取り付けられている。下ケース１2の底板６には後
部左右のスピーカ３、３に対応する位置に、内方に突出
し且つ後方側板に開口する凹部７、７が形成されてい
る。この凹部７の底板８には、放音孔９が設けられ、こ
の底板８の上部には環状のリブ１０で位置決めされて筒
体１１が接着されている。この筒体１１は例えば樹脂又
は紙製で、その上端部がフェルト等の密閉部材１２を介
して前記スピーカ３の背面に密着している。BRIEF DESCRIPTION OF THE DRAWINGS FIG.
In the drawings, 1 is a case of an electronic keyboard instrument, 2 is a keyboard,
3 is a speaker. Case 1 is made from the top casing 1 1 and the lower case 1 2 and having an opening 4 for exposing the keyboard 2. The upper case 1 1 has left and right two sound emission holes 5,5 in the rear, a speaker 3, 3 opposed to the sound emission hole 5 and 5 on its inner surface is attached with screws. The bottom plate 6 of the lower case 1 2 at a position corresponding to the rear left and right speakers 3 and 3, the recess 7, 7 which opens and rear side plate projecting inwardly is formed. A sound emission hole 9 is provided in a bottom plate 8 of the recess 7, and a cylindrical body 11 is adhered to an upper portion of the bottom plate 8 by being positioned by an annular rib 10. The cylindrical body 11 is made of, for example, resin or paper, and its upper end is in close contact with the rear surface of the speaker 3 via a sealing member 12 such as felt.

【０００８】前記下ケース１2の放音孔９はその面積を
最適値に設定することによりスピーカ３の特性に最適な
ダンパー効果を与えることができる。[0008] sound outlet 9 of the lower case 1 2 can give an optimum damper effect on the properties of the speaker 3 by setting the area to the optimum value.

【０００９】[0009]

【考案の効果】本考案は、上述のように、ケース内のス
ピーカが下ケースに取り付けた筒体内に収容され、スピ
ーカの背面から放出される音が筒体内から下ケースの放
音孔を経てケースの後方に放出されるように構成されて
いるので、スピーカの前面から放出される音は、スピー
カの背面からの音によって干渉されることがなく、その
ため音質が向上し、且つスピーカのコーン紙の振動が抑
えられることがないという効果があり、またケースが小
型で構造が簡単であり、部品及び組立コストが低廉にな
るという効果を有する。According to the present invention, as described above, the speaker in the case is housed in the cylinder attached to the lower case, and the sound emitted from the back of the speaker passes through the sound emission hole of the lower case from the cylinder. Since the sound is emitted to the rear of the case, the sound emitted from the front of the speaker is not interfered by the sound from the back of the speaker, so that the sound quality is improved and the cone paper of the speaker is improved. And the case is small, the structure is simple, and the cost of parts and assembly is reduced.

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

【図１】 本考案の実施例の後方から見た斜視図FIG. 1 is a rear perspective view of an embodiment of the present invention.

【図２】 上記実施例の断面図FIG. 2 is a sectional view of the embodiment.

【符号の説明】[Explanation of symbols]

１ ケース １1 上ケース １2 下ケース ２ 鍵盤 ３ スピーカ ５ 放音孔 ６ 下ケース１2の底板 ７ 凹部 ８ 凹部７の底板 ９ 放音孔 １１ 筒体 １２ 密閉部材1 Case 1 1 upper case 1 2 bottom plate 9 sound emitting hole 11 cylindrical member 12 sealing member of the lower case 2 keyboard 3 loudspeaker 5 sound output holes 6 lower casing 1 2 of the bottom plate 7 recess 8 recesses 7

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項１】 鍵盤を取り付けた下ケースと、鍵盤を露
出する開口を有する上ケースから成るケース内にスピー
カを収容したキーボードにおいて、前記上ケースの放音
孔部にスピーカを取り付け、該スピーカに対向する位置
に、前記下ケースの底板を内方に突出し且つ該下ケース
の後方側板に開口する凹部を設けると共に、該凹部に放
音孔を形成し、該放音孔を包囲する環状リブを形成し
て、該環状リブに筒体を取り付け、その上端部を前記ス
ピーカの背面に密着して筒体内に前記スピーカを収容し
たことを特徴とするスピーカーを有するキーボード。1. A lower case to which a keyboard is attached and a keyboard
In a keyboard in which a speaker is housed in a case consisting of an upper case having an opening for projecting, a speaker is attached to a sound emission hole of the upper case, and a position facing the speaker is provided.
, The projecting part of the bottom plate of the lower case inwardly and Rutotomoni a recess that opens to the rear side plate of the lower casing, to form a sound emission hole to the recess, forms an annular rib surrounding the sound outlet
A cylindrical body is attached to the annular rib, and the upper end is
In close contact with the back of the speaker housing the speaker into a cylindrical body
Keyboard having a speaker, characterized in that the.
JP1992058226U 1992-08-19 1992-08-19 Keyboard with speaker Expired - Lifetime JP2575173Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1992058226U JP2575173Y2 (en) 1992-08-19 1992-08-19 Keyboard with speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1992058226U JP2575173Y2 (en) 1992-08-19 1992-08-19 Keyboard with speaker

Publications (2)

Publication Number Publication Date
JPH0621096U JPH0621096U (en) 1994-03-18
JP2575173Y2 true JP2575173Y2 (en) 1998-06-25

Family

ID=13078173

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1992058226U Expired - Lifetime JP2575173Y2 (en) 1992-08-19 1992-08-19 Keyboard with speaker

Country Status (1)

Country Link
JP (1) JP2575173Y2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030051594A1 (en) 2001-09-19 2003-03-20 Yamaha Corporation Electronic keyboard musical instrument
WO2019038913A1 (en) * 2017-08-25 2019-02-28 ヤマハ株式会社 Keyboard device
JP7126142B2 (en) * 2018-06-29 2022-08-26 パナソニックＩｐマネジメント株式会社 Information terminal equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56120594U (en) * 1980-02-16 1981-09-14
JPH0733277Y2 (en) * 1987-02-06 1995-07-31 ヤマハ株式会社 Keyboard type electronic musical instrument
JPS6423196U (en) * 1987-07-30 1989-02-07
JP3130697U (en) * 2007-01-24 2007-04-05 洋 村田 Lighted earpick

Also Published As

Publication number Publication date
JPH0621096U (en) 1994-03-18

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