JPS59501087A - loudspeaker sealed box - Google Patents
loudspeaker sealed boxInfo
- Publication number
- JPS59501087A JPS59501087A JP58501905A JP50190583A JPS59501087A JP S59501087 A JPS59501087 A JP S59501087A JP 58501905 A JP58501905 A JP 58501905A JP 50190583 A JP50190583 A JP 50190583A JP S59501087 A JPS59501087 A JP S59501087A
- Authority
- JP
- Japan
- Prior art keywords
- loudspeaker
- cover
- box
- low frequency
- sealed box
- 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.)
- Pending
Links
- 239000011358 absorbing material Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 229920003002 synthetic resin Polymers 0.000 claims description 10
- 239000000057 synthetic resin Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 2
- 239000010454 slate Substances 0.000 claims description 2
- 239000011093 chipboard Substances 0.000 description 6
- 229920001084 poly(chloroprene) Polymers 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000004794 expanded polystyrene Substances 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
- H04R1/2884—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure
- H04R1/2888—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of the enclosure structure, i.e. strengthening or shape of the enclosure for loudspeaker transducers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。 (57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 ラウドスピーカ密閉箱 この発明はラウドスピーカ密閉箱に関するものである。この発明の形態は請求の 範囲に限定されている。[Detailed description of the invention] loudspeaker sealed box This invention relates to a loudspeaker enclosure. The form of this invention is limited in scope.
この発明の一実施例が添付図面に沿って例として説明されるであろう。An embodiment of the invention will be described by way of example with reference to the accompanying drawings, in which: FIG.
第１図は第一図のＡ−Ａ’線に沿ってのラウドスピーカ密閉箱装置の垂直断面図 である。Figure 1 is a vertical cross-sectional view of the loudspeaker sealed box apparatus taken along line A-A' in Figure 1. It is.
第一図はラウドスピーカ密閉箱装置の平面図である。Figure 1 is a plan view of the loudspeaker sealed box device.
第３図はラウドスピーカ密閉箱装置の正面図である。FIG. 3 is a front view of the loudspeaker sealed box apparatus.
第７図はラウドスピーカ密閉箱装置の背板の拡大断面図である。FIG. 7 is an enlarged sectional view of the back plate of the loudspeaker sealed box device.
図示されるラウドスピーカ密閉箱装置コは、背板グと、側板６．Ｉｒと、上板１ ０と、底板１２と、正面板／ダとを有する箱体から成っており、これらは高密度 チップボードから作られている。バッフルボードとして知られる正面板／グは上 部開口／７と下部開口／ｇとを有しており、夫々高周波ラウドスピーカコθと低 周波ラウドスピーカ２ユとが取付けられている。正面板／４１であるバッフルボ ードは底板／２に対して？θ度よりも僅かに小さい角度をなしており、その面は 僅かに上方に向いている。正面板／９と背板グは取外し可能で、他の板に固定さ れている当て板、２Ａにねじで取付けられている。The illustrated loudspeaker enclosure assembly includes a back plate 6, a side plate 6. Ir and upper plate 1 0, a bottom plate 12, and a front plate/da, these are high-density Made from chipboard. The front board, also known as a baffle board, is It has a lower opening /7 and a lower opening /g, respectively. Two frequency loudspeakers are installed. Front plate/41 baffle box Is the board relative to the bottom plate/2? It forms an angle slightly smaller than θ degrees, and its surface is facing slightly upwards. The front plate/9 and the back plate are removable and cannot be fixed to other plates. It is attached to the backing plate 2A with screws.
断面が三角の当て板２グがコ個の開口ｉ５ｔｇ；の間の正面板／Ｆであるバッフ ルボードに固着されており、底板１２に平行である。A buff that is a front plate /F between a backing plate 2g with a triangular cross section and a number of openings i5tg; It is fixed to the board and parallel to the bottom plate 12.
ラウドスピーカ密閉箱装置コは、合成樹脂材料から作られたカバー、２ｇを有し ている。このカバー２ｇは発泡ポリスチレンの内側層３０と発泡ネオプレンの厚 い外側層３コとから成っている。このカバー２ｇはチップボードの板ｔｔ、５ｇ 、ｉθ、ｉａ、ｉｑにより放射される雑音を減少し、カバー２ｇを構成する材料 の密度およびやわさの違いによって再生音を向上させる。この向上の他の理由は 、ネオプレンが隣接する室の面からの反射音を吸収するということである。The loudspeaker closed box device has a cover made of synthetic resin material, 2g ing. This 2g cover has an inner layer of expanded polystyrene and a thickness of expanded neoprene. It consists of three outer layers. This cover 2g is a chipboard board tt, 5g , iθ, ia, iq, the material constituting the cover 2g The reproduction sound is improved by the difference in density and softness of the material. Another reason for this improvement is , the neoprene absorbs reflected sound from adjacent chamber surfaces.
正面板／４’であるバッフルボードの正面に固着された断面三角の当て板二ｑは カバー、２ｆを段にする。この様に、低い区域のカバーｕｆの平面は低周波ラウ ドスピーカ２コのリム３ダから間隔が開けられており、この区域のカバーユｇは 断面三角の当て板２’ｌ、および底板／、２と側板５ｇの側縁部（こて箱に取付 けられている。The backing plate 2q with a triangular cross section fixed to the front of the baffle board which is the front plate/4' is Stack the cover and 2f. In this way, the plane of cover uf in the low area is There is a gap from the rim 3 of the two loudspeakers, and the cover g in this area is The backing plate 2'l, which has a triangular cross section, and the side edges of the bottom plate/2 and the side plate 5g (attached to the trowel box) I'm being kicked.
発泡ネオプレン製のリング３Ｓは、低周波ラウドスピーカ２．２のリム３ダの外 面の最も深い部分に、そしてカバー２ｇの内面に接着されている。The ring 3S made of foamed neoprene is attached to the outside of the rim 3D of the low frequency loudspeaker 2.2. It is glued to the deepest part of the surface and to the inner surface of the cover 2g.
箱体の正面板ｌｌｌ上のカバー、Ｉｆはａつの円形の開口を有している。一方の 開口３ｔは低周波ラウドスピーカｕＪのダイアフラム３ｔと同軸で、このダイア フラム３ｇ：の直径よりも小さい直径である。この開口３６ははす縁ｌＩｏを有 している。この低い区域のカバー２１とダイアフラム３ｇとの間の間隔はダイア フラム３ｔの動きを許す。他方の開口’１２は高周波ラウドスピーカ、２０のダ イアフラムと同軸で、このダイアフラムｌＩりより／闘犬きい直径である。The cover If on the front plate lll of the box body has a circular openings. one side The aperture 3t is coaxial with the diaphragm 3t of the low frequency loudspeaker uJ; The diameter is smaller than the diameter of flam 3g:. This opening 36 has a beveled edge lIo. are doing. The distance between the cover 21 and the diaphragm 3g in this low area is dia. Allows flam 3t movement. The other opening '12 is a high frequency loudspeaker, It is coaxial with the diaphragm and has a larger diameter than this diaphragm.
再生音は上板１０に設けられたスロットグ乙により更に向上される。このスロッ トｑ６はチップボードの上板ＩＯとそのカバー２ｇを貫通しており、カバーｓｒ は斜めに切られている。このスロット弘６は矩形で、その長手方向の軸線はラウ ドスピーカ密閉箱装置コの正面とはゾ平行である。The reproduced sound is further improved by the slot groove provided on the top plate 10. This slot q6 passes through the upper board IO of the chip board and its cover 2g, and the cover sr is cut diagonally. This slot 6 is rectangular, and its longitudinal axis is It is parallel to the front of the loudspeaker sealed box device.
箱体の内部において、吸音材のシート４（ｆｆは背板りの内側の面の全面に接着 されている。この吸音材は、天然スレート粉で充填された未発泡合成樹脂材料の 層Ｓコに重ねられた発泡合成樹脂材料の層Ｓθから成っている。この吸音材は工 業用防音のために市販されており、この様な関係においては工業用障壁マットと して知られている。未発泡合成樹脂側はチップボードの背板グに接着されている 。Inside the box, a sheet of sound absorbing material 4 (ff is glued to the entire inside surface of the backboard) has been done. This sound absorbing material is made of unfoamed synthetic resin material filled with natural slate powder. It consists of a layer Sθ of foamed synthetic resin material superimposed on a layer S. This sound absorbing material It is commercially available for industrial soundproofing, and in this context it is used as an industrial barrier mat. It is known as. The unfoamed synthetic resin side is glued to the chipboard backboard. .
同じタイプの吸音材が低周波ラウドスピーカ２．２の電磁石ケース左６に接着さ れている。第１のシートがＶ字状の溝形部材ｓｇに折り曲げられてケースＳ６に 固定され、この溝形部材ｓｇの縦方向の開口部の幅はｆ ｌＩ ＋ ラウドスピーカ２２のダイアフラム３ｇの直径と同じ寸法である。図示されてい ないが、第２のシートはケースＳ６と第１のシートとに結合され、溝形部材ｓｇ の一端を覆い、他端は開かれたま＼になっている。両シートの発泡合成樹脂６０ 側はラウドスピーカ、２２のダイアフラム３ｇに面している。The same type of sound absorbing material is glued to the left electromagnetic case 6 of the low frequency loudspeaker 2.2. It is. The first sheet is bent into a V-shaped groove member sg and placed in the case S6. fixed, and the width of the vertical opening of this channel member sg is f lI + It has the same dimensions as the diameter of the diaphragm 3g of the loudspeaker 22. Illustrated However, the second sheet is coupled to the case S6 and the first sheet, and the channel member sg One end is covered and the other end is left open. Foamed synthetic resin 60 for both sheets The side faces the loudspeaker, 22 diaphragms 3g.
ラウドスピーカ密閉箱装置コは３本の脚により床に支持されている。後部のコ本 の脚６．２は水平断面が正方形のゴム片であり、箱体の底板／２の後部コーナー に固定されている。後部の脚１２の各々の前面の高さは後面の対応する高さを越 えている。この脚６．２はクロイデツクスの商品名で入手できるドア・ストップ に使用されるタイプの堅いゴム製である。正面の後部脚よりも柔かいゴム製の脚 ６１１は７個の成形物で、底板／、２の正面縁部の中央に固着されている。この 脚６グは側面から見るとＴ字状の側面である。７字の横部分６６がじゅうたんの 敷設された床に置かれる。The loudspeaker enclosure is supported on the floor by three legs. rear book The leg 6.2 is a rubber piece with a square horizontal cross section and is attached to the rear corner of the bottom plate/2 of the box body. Fixed. The height of the front surface of each rear leg 12 exceeds the corresponding height of the rear surface. It is growing. This leg 6.2 is a door stop available under the trade name Cloidex. Made of hard rubber of the type used in Rubber legs that are softer than the front rear legs 611 is seven molded parts fixed to the center of the front edge of the bottom plate/2. this The leg 6g has a T-shaped side when viewed from the side. The horizontal part 66 of the letter 7 is a carpet. Placed on a laid floor.
脚ｂ２．Ａ４’−は底板／２に接着されており、この様にするためにカバー２ｇ に孔が開けられている。電線（図示しない）が底板／、２とカバー、２ｇの第１ の開口６７を通って延びている。この電線はラウドスピーカ密閉箱内のクロスオ ーバー・ユニットとアンプとを連結する。開口６りは電線のまわりで閉じられて いる。Leg b2. A4'- is glued to the bottom plate/2, and in order to do this, cover 2g A hole is made in the hole. An electric wire (not shown) is attached to the bottom plate/, 2 and the cover, 2g first The opening 67 extends through the opening 67 . This wire is connected to the cross-off inside the loudspeaker enclosure. Connect the servo unit and amplifier. The opening 6 is closed around the wire. There is.
前述した様な実施例において、低周波ラウドスピーカ２コはＡＩＪＤＡＸ ＨＤ ／７ Ｂ、？？であり、高周波ラウドスピー力２０はＫＦｉＦＴ ｊ ７であ る。チップボードの箱体の寸法は、カバー２ｇを含めて高さ３０Ｓ龍、幅２３０ ＩｌｌＩＩ＋、上部奥行２ ／ Ｏａｍ、底部奥行ト弓關である。正面板／ｌＩ であるバッフルボードはラウドスピーカ密閉箱装置の底面に対してｇ ３．に度 の角度で傾けられており、高周波ラウドスピーカ、２０と低周波ラウドスピーカ ２ユを夫々受ける直径７．２ｍとｉｔｉｔｒｎｍの開口／Ａ。In the embodiment described above, the two low frequency loudspeakers are AIJDAX HD /7 B,? ? , and the high frequency loudspeaker power 20 is KFiFT j7. Ru. The dimensions of the chipboard box are 30mm high and 230mm wide, including the 2g cover. IllII+, top depth 2/Oam, bottom depth. Front plate/lI The baffle board, which is g3. degree high frequency loudspeaker, 20 and low frequency loudspeaker. Openings/A with a diameter of 7.2 m and ititrnm each receiving 2 units.
ｌざを有している。更に、深さ３關、直径／θＪ ｍｍの切込み６ｇが高周波ラ ウドスピーカ２０のリムを受けるために開口／Ａのまわりに形成されている。正 面板〕／ダであるバッフルボードは厚さ１１ｗｍで、他のチップボードの板’ｌ 、ｔ、ｇ、／θ、／２は厚さ７３市である。It has lza. In addition, a 6g cut with a depth of 3 degrees and a diameter of θJ mm is a high-frequency laser. is formed around the opening /A to receive the rim of the loudspeaker 20. Positive The baffle board is 11wm thick and is similar to other chipboard boards. , t, g, /θ, /2 has a thickness of 73 cm.
ラウドスピーカ密閉箱装置コの正面板／４’に段を形成する断面三角の当て板は 、上部区域のカバーｓｇと下部区域のカバーｓｇとの間に／ｇｔａｓの間隔を作 る。The front plate of the loudspeaker sealed box device is a triangular cross-section plate that forms a step at 4'. , create a spacing of /gtas between the cover sg of the upper area and the cover sg of the lower area. Ru.
カバーユｇの発泡ポリスチレンの層３０は厚さ／、Ａ關で、ネオプレンの層３． ２は厚さ！ｒｗである。高周波ラウドスピーカ、２（７上の開口１６は直径２ｇ ｍ１ｆｌで、低周波ラウドスピーカ、２．２上の開口／ざは直径ｇ７ｍｔａであ る。放射方向のリング３！の幅は７朋である。The layer 30 of expanded polystyrene of the cover unit G has a thickness of /, A, and the layer 3 of neoprene. 2 is thickness! It is rw. High frequency loudspeaker, 2 (aperture 16 above 7 has a diameter of 2 g m1fl, low frequency loudspeaker, aperture on 2.2 has a diameter g7mta. Ru. Radial ring 3! The width of is 7 ho.
箱体の上板１０のスロットｌＩ６は、２コ闘×Ａ、３ｎｍｒｘの矩形である。そ の中心は上板ｌθの前部縁部から５３１にある。The slot 1I6 on the upper plate 10 of the box body is a rectangle of 2xA and 3nmrx. So is centered at 531 from the front edge of the top plate lθ.
電線を受ける底板／、２の開口６７は／／Ｊ闘Ｘ４’龍である。The opening 67 of the bottom plate /, 2 that receives the electric wire is //J-X4' Dragon.
吸音材のシートｒｉｇ、ｇダの発泡フオーム層は厚さ／２ｒｔｒａであり、そこ に重ね合わされている層は厚さ３ｎである。電磁石ケースＳ６に接着されたシー ）！ｆ４ｔは２に３ｍｘ／１．３ｍの矩形であり、後者の／Ａｋ關という寸法は シートｓｑの横幅である。The sound absorbing material sheet rig, the foam layer of gda has a thickness of /2rtra, and there The layer superimposed on is 3n thick. Seat glued to electromagnet case S6 )! f4t is a rectangle of 2 to 3m x 1.3m, and the latter dimension /Ak is This is the width of the sheet sq.
前部の脚Ａ’ｌの横部分Ａ６＋は／Ｊ１１１Ｘ、２＆１１１ＸＪ＆１１１１であ り、この横部分６ｔをラウドスピーカ密閉箱に適宜に連結する他の部分は／３ｗ ａｘ２！；Ｈ×３！；ｔｍである。The lateral part A6+ of the front leg A'l is /J111X, 2&111XJ&1111. The other part that connects this horizontal part 6t to the loudspeaker sealed box is /3w. ax2! ;H×3! ;tm.
後部の脚６コは水平断面が２３ｔｘｘＸ２３ｒｎである。脚ルーの前部と後部の 高さは、夫々、２．１．ｍａｉと、２１１ｍである。The six rear legs have a horizontal cross section of 23txxx23rn. front and rear of leg loops The height is 2.1. mai and 211m.
他の発泡合成樹脂材料、例えば発泡ポリエステルが気泡ネオプレンの代わりに用 いられてもよい。Other foamed synthetic resin materials, such as foamed polyester, can be used instead of cellular neoprene. It's okay to stay.
全ての実施例において、低周波ラウドスピーカの後（こある吸音材製溝形部材の 縦方向の開口部の幅はそのダイアフラムの直径とはゾ同じか大きくすべきである 。In all examples, after the low-frequency loudspeaker, a channel made of sound-absorbing material is used. The width of the longitudinal opening should be equal to or larger than the diameter of its diaphragm. .
第７の実施例のＡＵＤＡＸ ＨＤ ／７ Ｂ、？７と異なり、低周波ラウドスピ ーカが電磁石ケースの直径よりもや＼大きいダイアフラムを有しているとき、ダ イアフラムの後の障壁マットは、例えばバッフルボードの後面にダイアフラムを 取付けることによりダイアフラムを囲む様に、電磁石ケースよりも他の固定物に 接着されるべきである。AUDAX HD/7B of the seventh embodiment? 7, low frequency loudspeaker When the holder has a diaphragm slightly larger than the diameter of the electromagnet case, A barrier mat after the diaphragm can be used, for example, by placing the diaphragm on the back of the baffle board. By attaching it to a fixed object other than the electromagnet case, it will surround the diaphragm. Should be glued.
全ての実施例において、上板１０のスロットの面積に対するラウドスピーカ密閉 箱の容積の比率は６０から１００ （メートル）の範囲内にするべきであり、箱 の上板／θの厚さに対するスロットの面積の比率は００００ｇからθ、０／２ （メートル）の間にすべきである。In all embodiments, the loudspeaker sealing relative to the area of the slot in the top plate 10 The volume ratio of the box should be within the range of 60 to 100 (meters); The ratio of the slot area to the thickness of the upper plate/θ is 0000g to θ, 0/2 (meters) should be between.
従って、上板１０の厚さに対する密閉箱の容積の比率は好適にはｏ、ｔｉ ｇか ら１．２（平方メートル）の間である。Therefore, the ratio of the volume of the sealed box to the thickness of the upper plate 10 is preferably o, tig or and 1.2 (square meters).
発せられる高周波音波の回折の影響を減少するために、例えば織物で覆われた直 径！ 、 Ｊ ＩＩＩの柔かいゴムの細い円柱体の様な吸音片を、ラウドスピー カ密閉箱の外面に、１個以上の音を発する開口のまわりにその開口に隣接し、或 は密閉箱の正面板の縁部に沿って設けることが好適である。To reduce the effects of diffraction on the emitted high-frequency sound waves, for example Diameter! , J III sound absorbing pieces like thin cylinders made of soft rubber are on the outside of the sealed box, around and adjacent to one or more sound emitting openings, or is preferably provided along the edge of the front plate of the sealed box.
国Ｆ！！、調査報告Country F! ! , research report
Claims (1)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8217351REGB | 1982-06-15 | ||
| GB08217351A GB2123250A (en) | 1982-06-15 | 1982-06-15 | Loudspeaker enclosures |
| PCT/GB1983/000156 WO1984000092A1 (en) | 1982-06-15 | 1983-06-15 | Loudspeaker enclosures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59501087A true JPS59501087A (en) | 1984-06-21 |
Family
ID=10531058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58501905A Pending JPS59501087A (en) | 1982-06-15 | 1983-06-15 | loudspeaker sealed box |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0097061A1 (en) |
| JP (1) | JPS59501087A (en) |
| GB (1) | GB2123250A (en) |
| WO (1) | WO1984000092A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1218937A (en) * | 1984-01-06 | 1987-03-10 | William Wright M.D. | Loudspeaker system with boundary layer control |
| HU193767B (en) * | 1985-05-31 | 1987-11-30 | Elektroakusztikai Gyar | Loudspeaker, favourably sound column or horn loudspeaker |
| DE3920041C1 (en) * | 1989-06-20 | 1990-12-06 | Amneus Engineering, Vaellingby, Se | |
| FR2676322B1 (en) * | 1991-05-10 | 1994-06-10 | Charlet Francois | ACOUSTIC DEVICE FOR DAMPING AND FILTERING SOUND TRANSMITTERS IN GENERAL AND SPEAKERS IN PARTICULAR. |
| SE527940C2 (en) | 2005-06-03 | 2006-07-18 | Tommy Skogsberg | Loudspeaker system has membrane movement of which produces sound waves which go into the loudspeaker cabinet and then out into a room |
| CN115209257B (en) * | 2022-09-14 | 2023-02-03 | 歌尔股份有限公司 | Casing of sound generating device, sound generating device and electronic equipment |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE673136A (en) * | ||||
| GB337739A (en) * | 1929-07-01 | 1930-11-03 | Kolster Brandes Ltd | Improvements relating to cabinets for housing acoustic devices |
| GB747263A (en) * | 1953-05-21 | 1956-03-28 | Goodmans Ind Ltd | Improvements in or relating to loudspeaker cabinets |
| DE1018467B (en) * | 1955-12-20 | 1957-10-31 | Rundfunk Betr Stechnik G M B H | Loudspeakers with small fluctuations in the transmission rate |
| GB857077A (en) * | 1958-04-24 | 1960-12-29 | Watts Ltd Cecil E | Improvements in and relating to sound radiators |
| GB890886A (en) * | 1958-11-06 | 1962-03-07 | Wharfedale Wireless Works Ltd | Loudspeaker cabinets |
| US3720285A (en) * | 1970-06-30 | 1973-03-13 | Rand Org Ltd | Loudspeakers |
| BE794703A (en) * | 1972-01-31 | 1973-07-30 | Acoustic Fiber Sound Systems | SOUND REPRODUCTION SYSTEM |
| ZA723011B (en) * | 1972-05-03 | 1973-08-29 | J Albertyn | A speaker enclosure |
| US4127551A (en) * | 1973-03-05 | 1978-11-28 | E. I. Du Pont De Nemours And Company | Mixed esters of dibasic unsaturated acids, glycols and glycidyl esters |
| US4127751A (en) * | 1975-11-27 | 1978-11-28 | Pioneer Electronic Corporation | Loudspeaker with rigid foamed back-cavity |
| US4167985A (en) * | 1976-05-13 | 1979-09-18 | Dunlavy John H | Speaker system |
| GB1591042A (en) * | 1978-05-03 | 1981-06-10 | Bibby P J | Loudspeaker cabinet |
-
1982
- 1982-06-15 GB GB08217351A patent/GB2123250A/en not_active Withdrawn
-
1983
- 1983-06-15 JP JP58501905A patent/JPS59501087A/en active Pending
- 1983-06-15 EP EP83303473A patent/EP0097061A1/en not_active Withdrawn
- 1983-06-15 WO PCT/GB1983/000156 patent/WO1984000092A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO1984000092A1 (en) | 1984-01-05 |
| GB2123250A (en) | 1984-01-25 |
| EP0097061A1 (en) | 1983-12-28 |
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