JPH0984180A - Speaker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stick a diaphragm and an edge without being decentered at the time of an assembling and to improve productivity by providing an annular projecting part guiding the inner peripheral sticking part of an edge at the peripheral part of a frame. SOLUTION: A frame 5 is coupled with the magnetic field part 1 composed of a yoke 2, a magnet 3 and a plate 14, the outer peripheral part of an edge 6 is fixed to the peripheral part of the frame 5 and a diaphragm 7 is stuck to the inner peripheral part of the edge 6. A voice coil 8 is coupled with the lower surface of the center part of the diaphragm 7, the intermediate part of the voice coil 8 is supported by a damper 9 and the lower part of the voice coil 8 is made to be fitted into the magnetic gap of the magnetic field part 1 and a dust cap 10 is stuck to the upper surface of the center of the diaphragm 7. The diaphragm 7 is provided with an annular projection 11, the inner peripheral part of the edge 6 is made to be fitted into this projection and the edge 6 is prevented from being decentered. The sticking work of the edge 6 to the diaphragm 7 is facilitated, and productivity and quality can be improved.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は各種音響機器、映像機器
等に使用されるスピーカに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker used in various audio equipment, video equipment and the like.

【０００２】[0002]

【従来の技術】主に再生周波数帯域の拡大を目的に、エ
ッジの内周部を振動板の外周部より内側に固着してスピ
ーカを構成する場合がある。この種の従来のスピーカに
ついて図３を用いて説明する。2. Description of the Related Art A speaker may be constructed by fixing an inner peripheral portion of an edge to an inner side of an outer peripheral portion of a diaphragm, mainly for the purpose of expanding a reproduction frequency band. A conventional speaker of this type will be described with reference to FIG.

【０００３】同図によると、ヨーク１４、マグネット１
５、プレート１６によって構成された界磁部１３にフレ
ーム１７を結合し、このフレーム１７の周縁部に振動板
１８の外周部より内側に内周部を固着したエッジ１９の
外周部を固着し、振動板１８の中央部下面にボイスコイ
ル２０を結合し、ボイスコイル２０の下部を界磁部１３
の磁気ギャップに正しくはまり込むように中間部をダン
パー２１で保持し、さらに振動板１８の中央部上面にダ
ストキャップ２２を貼り付けて構成されていた。According to the figure, the yoke 14 and the magnet 1
5, the frame 17 is coupled to the field portion 13 constituted by the plate 16, and the outer peripheral portion of the edge 19 having the inner peripheral portion fixed inside the outer peripheral portion of the diaphragm 18 is fixed to the peripheral edge portion of the frame 17. The voice coil 20 is coupled to the lower surface of the central portion of the diaphragm 18, and the lower portion of the voice coil 20 is connected to the field magnet portion 13.
The intermediate portion is held by the damper 21 so as to be properly fitted into the magnetic gap of the above, and the dust cap 22 is attached to the upper surface of the central portion of the diaphragm 18.

【０００４】[0004]

【発明が解決しようとする課題】一般的にスピーカ組立
時には、振動板１８には予めエッジ１９が固着されてい
るが、上記従来のスピーカでは図３の断面形状から明ら
かなように、エッジ１９の内周部を振動板１８の外周部
に固着した一般的なスピーカと異なり、エッジ１９の内
周部を振動板１８の外周部内側に固着しているため、振
動板１８とエッジ１９の組立品を大量に重ねて梱包する
ことが困難なため、運送、梱包費の増大を余儀なくされ
ていた。Generally, at the time of assembling a speaker, an edge 19 is fixed to the diaphragm 18 in advance. However, in the above-mentioned conventional speaker, as shown in the sectional shape of FIG. Unlike a general speaker in which the inner peripheral portion is fixed to the outer peripheral portion of the diaphragm 18, since the inner peripheral portion of the edge 19 is fixed to the inner peripheral portion of the diaphragm 18, an assembly of the diaphragm 18 and the edge 19 is formed. Since it is difficult to pack a large number of items in a pile, transportation and packing costs have been increased.

【０００５】また、個別に納入された振動板１８とエッ
ジ１９をスピーカ組立時に貼り合わす場合もあるが、偏
心が起き易く、生産性が低く不良率が高いという課題が
あった。In some cases, the diaphragm 18 and the edge 19 that have been separately delivered are attached to each other when the speaker is assembled, but there is a problem that eccentricity is likely to occur, productivity is low, and a defective rate is high.

【０００６】本発明は以上のような従来の欠点を除去
し、組立て性の優れたスピーカを提供することを目的と
する。SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the above-mentioned conventional drawbacks and to provide a speaker with excellent assemblability.

【０００７】[0007]

【課題を解決するための手段】上記の課題を解決するた
めに本発明のスピーカは、界磁部の上面に結合されたフ
レームの周縁に、外周部がエッジの内周部より大きく形
成されると共にエッジの内周部貼り合わせ部をガイドす
る環状の凸部を設けた振動板を結合し、この振動板の中
央部に界磁部の磁気ギャップにはまり込むボイスコイル
を結合する構成としたものである。In order to solve the above problems, according to the speaker of the present invention, the outer peripheral portion is formed larger than the inner peripheral portion of the edge on the peripheral edge of the frame coupled to the upper surface of the field magnet portion. A diaphragm having an annular convex portion that guides the bonded portion of the inner peripheral portion of the edge is coupled, and a voice coil that fits into the magnetic gap of the field unit is coupled to the central portion of the diaphragm. Is.

【０００８】[0008]

【作用】上記構成とすることにより、エッジの内周部を
振動板の外周部より内側に固着した構成のスピーカにお
いて、その組立時に振動板とエッジを偏心することなく
貼り合わすことができ、組立作業が容易で生産性の向上
と低不良率を実現したものである。With the above construction, in the speaker having the inner peripheral portion of the edge fixed to the inner side of the outer peripheral portion of the diaphragm, the diaphragm and the edge can be attached to each other without eccentricity during assembly. It is easy to work with, improving productivity and achieving a low defect rate.

【０００９】[0009]

【実施例】以下、本発明の一実施例について図１〜図２
（ａ），（ｂ）により説明する。図１は同実施例におけ
るスピーカの半断面図、図２（ａ），（ｂ）は本発明の
スピーカに用いる振動板の平面図と半側面側である。同
図において、ヨーク２、マグネット３、プレート４によ
って構成された界磁部１にフレーム５を結合し、このフ
レーム５の周縁部にエッジ６の外周部を固着し、このエ
ッジ６の内周部に振動板７を貼り付け、この振動板７の
中央部下面にボイスコイル８を結合し、ボイスコイル８
の中間部をダンパー９で支持してボイスコイル８の下部
を界磁部１の磁気ギャップにはまりこむようにし、振動
板７の中央部上面にダストキャップ１０を貼りつけて構
成している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.
This will be described with reference to (a) and (b). FIG. 1 is a half sectional view of the speaker in the embodiment, and FIGS. 2 (a) and 2 (b) are a plan view and a half side surface of a diaphragm used in the speaker of the present invention. In the figure, a frame 5 is coupled to a field portion 1 constituted by a yoke 2, a magnet 3 and a plate 4, an outer peripheral portion of an edge 6 is fixed to a peripheral portion of the frame 5, and an inner peripheral portion of the edge 6 is fixed. The vibration plate 7 is attached to the voice coil 8, and the voice coil 8 is connected to the lower surface of the central portion of the vibration plate 7.
The intermediate portion of the voice coil 8 is supported by the damper 9 so that the lower portion of the voice coil 8 is fitted into the magnetic gap of the magnetic field portion 1, and the dust cap 10 is attached to the upper surface of the central portion of the diaphragm 7.

【００１０】なお、振動板７には、環状突起１１を設
け、ここにエッジ６の内周部をはまりこませてエッジ６
が偏心しないようにして、エッジ６の振動板７への貼り
付け作業の生産性の向上と品質の向上を図っている。The vibrating plate 7 is provided with an annular protrusion 11 in which the inner peripheral portion of the edge 6 is fitted so that the edge 6 is formed.
Is not eccentric to improve the productivity and quality of the work of attaching the edge 6 to the diaphragm 7.

【００１１】[0011]

【発明の効果】以上のように本発明のスピーカは構成さ
れるため、エッジの内周部を振動板の外周部より内側に
固着したスピーカにおいて、その組立時に、個別に大
量、かつ安価な梱包、運送費で納入された振動板とエッ
ジを偏心することなく貼り合わすことができ、低コス
ト、低不良率を両立する工業的価値の大なるものであ
る。なお、上記実施例では丸形のスピーカについて説明
したが、その形状が楕円形や角形の場合でも同様の効果
が得られることは言うまでもない。Since the speaker of the present invention is configured as described above, in a speaker in which the inner peripheral portion of the edge is fixed to the inner side of the outer peripheral portion of the diaphragm, a large amount and inexpensive packaging are individually performed at the time of assembly. It is possible to bond the diaphragm delivered at the transportation cost with the edge without eccentricity, and it is of great industrial value to achieve both low cost and low defect rate. It should be noted that although the round speaker has been described in the above embodiment, it is needless to say that the same effect can be obtained even when the speaker has an elliptical shape or a rectangular shape.

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

【図１】本発明のスピーカの一実施例の半断面図FIG. 1 is a half sectional view of an embodiment of a speaker of the present invention.

【図２】（ａ）同要部である振動板の正面図 （ｂ）同半側面図FIG. 2 (a) is a front view of a diaphragm, which is the main part, and (b) is a side view of the same.

【図３】従来のスピーカの半断面図FIG. 3 is a half sectional view of a conventional speaker

【符号の説明】[Explanation of symbols]

１ 界磁部 ５ フレーム ６ エッジ ７ 振動板 ８ ボイスコイル １１ 環状突起 1 field part 5 frame 6 edge 7 diaphragm 8 voice coil 11 annular protrusion

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 磁気ギャップを形成した磁気回路の上面
にフレームを結合し、このフレームの周縁にロール形状
のエッジの外周部を結合し、このエッジの内周部に外周
部がエッジの内周部より大きく形成されると共にエッジ
の内周部貼合わせ部をガイドする環状の凸部を設けた振
動板を結合し、この振動板の中央部に上記磁気ギャップ
にはまり込むボイスコイルを結合したスピーカ。1. A frame is coupled to an upper surface of a magnetic circuit having a magnetic gap, an outer peripheral portion of a roll-shaped edge is coupled to a peripheral edge of the frame, and an outer peripheral portion is an inner peripheral portion of the edge to an inner peripheral portion of the edge. A loudspeaker in which a diaphragm having a ring-shaped convex portion that is formed to be larger than the inner portion of the edge and which guides the bonded portion of the inner peripheral portion of the edge is coupled, and a voice coil that fits in the magnetic gap is coupled to the central portion of the diaphragm. .