以下、発明を実施するための形態（以下、実施形態という）につき図面を参照しつつ詳細に説明する。なお、下記の実施形態により本発明が限定されるものではない。また、下記実施形態における構成要素には、当業者が容易に想定できるもの、実質的に同一のもの、いわゆる均等の範囲のものが含まれる。さらに、下記実施形態で開示した構成要素は適宜組み合わせることが可能である。
EMBODIMENT OF THE INVENTION Hereinafter, it demonstrates in detail, referring drawings for the form (henceforth embodiment) for implementing invention. In addition, the present invention is not limited by the following embodiments. In addition, components in the following embodiments include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those that fall within a so-called equivalent range. Furthermore, the constituent elements disclosed in the following embodiments can be combined as appropriate.
図１は、実施形態に係るスピーカの正面図である。図２は、図１に示すスピーカのＡ－Ａ断面図である。
1 is a front view of a speaker according to an embodiment; FIG. FIG. 2 is a cross-sectional view of the loudspeaker shown in FIG. 1 taken along the line AA.
本実施形態において、スピーカ１は、放音がなされる側である放音方向正面側と、放音方向正面側の反対側である放音方向背面側と、に延びる軸線Ｌを基準に構成される。放音方向は、軸線Ｌに平行な方向である。なお、放音方向正面側を単に正面側という場合もあり、放音方向背面側を単に背面側という場合もある。そして、軸線Ｌを中心として円を描く方向を周方向という。また、軸線Ｌに直交する方向を径方向といい、軸線Ｌに近づく側を径方向内側とし、軸線Ｌから遠ざかる側を径方向外側という。
In this embodiment, the speaker 1 is configured based on the axis L extending to the front side in the sound emitting direction, which is the side from which sound is emitted, and the rear side in the sound emitting direction, which is the opposite side to the front side in the sound emitting direction. be. The direction of sound emission is a direction parallel to the axis L. As shown in FIG. The front side in the direction of sound emission may be referred to simply as the front side, and the back side in the direction of sound emission may be referred to simply as the rear side. A direction in which a circle is drawn around the axis L is called a circumferential direction. A direction orthogonal to the axis L is called a radial direction, a side closer to the axis L is called a radial inner side, and a side away from the axis L is called a radial outer side.
スピーカ１は、フレーム２と、振動系３と、磁気回路４と、を備える。
A speaker 1 includes a frame 2 , a vibration system 3 and a magnetic circuit 4 .
フレーム２は、例えば、金属で一体に形成され、スピーカ１の正面側に配置される正面部材２１と、スピーカ１の背面側に配置される背面部材２２と、正面部材２１および背面部材２２の間に設けられた連結部材２３と、を含む。
The frame 2 is, for example, made of metal and integrally formed. and a connecting member 23 provided in the .
正面部材２１は、フランジ部２１Ａと、支持部２１Ｂと、リブ２１Ｃと、を有する。フランジ部２１Ａは、正面側と背面側に板面２１Ａａ，２１Ａｂを向けた板体が、軸線Ｌを中央に配置し周方向に連続して円環状に形成されている。フランジ部２１Ａは、後述する固定側の板部材５０に固定される部分である。支持部２１Ｂは、フランジ部２１Ａの径方向内側に設けられ、周方向に連続して円環状に形成されている。支持部２１Ｂは、その正面側に振動系３が取り付けられる取付面２１Ｂａを有している。リブ２１Ｃは、フランジ部２１Ａの正面側の板面２１Ａａから正面側に延びて設けられ、周方向に連続して円環状に形成されている。リブ２１Ｃは、フランジ部２１Ａの径方向内側に設けられる形態（図１から図４参照）と、フランジ部２１Ａの径方向外側に設けられる形態（図５および図６参照）とがある。なお、本実施形態においてフランジ部２１Ａおよび支持部２１Ｂおよびリブ２１Ｃは円環状であるとしたがこれに限定されず、楕円形状や角型形状などの任意の形状を取り得る。後述する背面部材２２や振動板３１、エッジ３２、ボビン３３、ダンパ３５、マグネット４１、プレート４２なども同様に、任意の形状であってよい。
The front member 21 has a flange portion 21A, a support portion 21B, and ribs 21C. The flange portion 21A is formed in an annular shape with plate surfaces 21Aa and 21Ab facing the front side and the back side, with the axis L arranged in the center and continuous in the circumferential direction. The flange portion 21A is a portion fixed to a fixed-side plate member 50, which will be described later. The support portion 21B is provided radially inward of the flange portion 21A and is formed in an annular shape continuously in the circumferential direction. The support portion 21B has a mounting surface 21Ba to which the vibration system 3 is mounted on the front side thereof. The rib 21C is provided so as to extend from the plate surface 21Aa on the front side of the flange portion 21A toward the front side, and is formed in an annular shape continuously in the circumferential direction. The rib 21C has a form provided radially inside the flange portion 21A (see FIGS. 1 to 4) and a form provided radially outside the flange portion 21A (see FIGS. 5 and 6). Although the flange portion 21A, the support portion 21B, and the ribs 21C are annular in the present embodiment, they are not limited to this, and may have any shape such as an elliptical shape or a rectangular shape. Similarly, the back surface member 22, diaphragm 31, edge 32, bobbin 33, damper 35, magnet 41, plate 42, etc., which will be described later, may have any shape.
背面部材２２は、正面側と背面側に板面２２ａ，２２ｂを向けた板体が、軸線Ｌを中央に配置し周方向に連続して円環状に形成されている。背面部材２２は、正面部材２１に対して径方向寸法が小さく形成されている。背面部材２２は、磁気回路４が取り付けられる部分である。
The back surface member 22 is formed into an annular shape with plate surfaces 22a and 22b facing the front side and the back side, with the axis line L disposed at the center and continuous in the circumferential direction. The rear member 22 is formed to have a smaller radial dimension than the front member 21 . The back member 22 is a portion to which the magnetic circuit 4 is attached.
連結部材２３は、正面部材２１および背面部材２２を連結する部材である。連結部材２３は、本実施形態では、正面側の正面部材２１に一端が連結し、背面側の背面部材２２に他端が連結した複数の棒状体で構成されている。連結部材２３は、この棒状体が、一端からから他端に延びる途中で径方向内側にへこむように湾曲して形成され、かつ他端が一端よりも径方向内側に至るように形成されている。これにより、連結部材２３は、周方向全体として正面側から背面側に窄むように形成される。なお、連結部材２３は、図には明示しないが、周方向に連続して円環状に形成されていてもよい。
The connecting member 23 is a member that connects the front member 21 and the back member 22 . In the present embodiment, the connecting member 23 is composed of a plurality of rod-shaped bodies, one end of which is connected to the front member 21 on the front side and the other end of which is connected to the back member 22 on the back side. The connecting member 23 is formed such that the rod-like body is bent radially inwardly while extending from one end to the other end, and the other end is formed radially inwardly of the one end. . Thereby, the connecting member 23 is formed so as to narrow from the front side to the back side as a whole in the circumferential direction. Although not shown in the drawings, the connecting member 23 may be formed continuously in the circumferential direction in an annular shape.
振動系３は、主として、振動板３１を有し、そのほか、エッジ３２と、ボビン３３と、ボイスコイル３４と、ダンパ３５と、を含む。
The vibration system 3 mainly has a diaphragm 31 and also includes an edge 32 , a bobbin 33 , a voice coil 34 and a damper 35 .
振動板３１は、軸線Ｌを中心とした円筒状をなし、正面側から背面側に漸次窄むように略すり鉢状に形成されている。
The diaphragm 31 has a cylindrical shape centered on the axis L, and is formed in a substantially mortar shape so as to gradually narrow from the front side to the back side.
エッジ３２は、軸線Ｌを中心とした円環状に形成されている。エッジ３２は、振動板３１の正面側の外周縁部に取り付けられる。エッジ３２は、フレーム２に対し正面部材２１における支持部２１Ｂの取付面２１Ｂａに取り付けられる。
The edge 32 is formed in an annular shape with the axis L as the center. The edge 32 is attached to the outer peripheral edge on the front side of the diaphragm 31 . The edge 32 is attached to the attachment surface 21Ba of the support portion 21B of the front member 21 with respect to the frame 2. As shown in FIG.
ボビン３３は、軸線Ｌを中心とし放音方向に延びる円筒状に形成されている。ボビン３３は、正面側の端部が振動板３１の背面側の開口部に挿通されて振動板３１に取り付けられている。
The bobbin 33 is formed in a cylindrical shape centered on the axis L and extending in the sound emitting direction. The bobbin 33 is attached to the diaphragm 31 with the end on the front side inserted through the opening on the back side of the diaphragm 31 .
ボイスコイル３４は、ボビン３３における背面側の端部の外周に巻き回されて設けられている。図示しないが、ボイスコイル３４のリードは、フレーム２の連結部材２３に固定された接続端子に接続されている。従って、外部から入来する入力音声信号は、接続端子を介してボイスコイル３４に供給される。
The voice coil 34 is wound around the outer periphery of the bobbin 33 at the end on the back side. Although not shown, the leads of the voice coil 34 are connected to connection terminals fixed to the connecting member 23 of the frame 2 . Therefore, an input audio signal coming from the outside is supplied to the voice coil 34 via the connection terminal.
ダンパ３５は、軸線Ｌを中心として中央が開口する円盤状に形成され、かつ軸線Ｌを中心として径方向に連続して放音方向に蛇行するする凹凸の繰り返しにより蛇腹状に形成されている。ダンパ３５は、中央の開口を形成する内周縁部が、ボイスコイル３４よりも正面側の位置でボビン３３の外周に固定されている。また、ダンパ３５は、外周縁部が、フレーム２に対し背面部材２２に取り付けられる。
The damper 35 is formed in a disk-like shape with an open center centered on the axis L, and is formed in a bellows shape by repeating unevenness that continuously meanders in the sound emitting direction centered on the axis L in the radial direction. The damper 35 is fixed to the outer periphery of the bobbin 33 at a position closer to the front side than the voice coil 34 at the inner peripheral edge forming the central opening. Also, the damper 35 is attached to the back member 22 of the frame 2 at the outer peripheral edge.
振動系３は、振動板３１が、エッジ３２を介してフレーム２の正面部材２１に取り付けられるとともに、ボイスコイル３４を巻き回されたボビン３３およびダンパ３５を介してフレーム２の背面部材２２に支持される。
The vibration system 3 has a diaphragm 31 attached to a front member 21 of the frame 2 via an edge 32 and supported by a rear member 22 of the frame 2 via a bobbin 33 around which a voice coil 34 is wound and a damper 35 . be done.
磁気回路４は、マグネット４１と、プレート４２と、ヨーク４３と、を含む。
The magnetic circuit 4 includes magnets 41 , plates 42 and yokes 43 .
マグネット４１は、軸線Ｌを中心として中央が開口する円盤状に形成されている。
The magnet 41 is formed in a disc shape centered on the axis L and having an opening at the center.
プレート４２は、軸線Ｌを中心として中央が開口する円盤状に形成されている。プレート４２は、マグネット４１の正面側に重なるように固定されている。プレート４２は、フレーム２に対し背面部材２２に固定される。
The plate 42 is formed in a disc shape centered on the axis L and having an opening at the center. The plate 42 is fixed so as to overlap the front side of the magnet 41 . A plate 42 is fixed to the back member 22 with respect to the frame 2 .
ヨーク４３は、マグネット４１およびプレート４２の中央の開口に背面側から挿通される円柱状のピース４３Ａと、ピース４３Ａの背面側の端部の外周から径方向外側に張り出すように形成されたフランジ４３Ｂとを有して構成されている。
The yoke 43 includes a cylindrical piece 43A that is inserted from the back side through the center opening of the magnet 41 and the plate 42, and a flange that protrudes radially outward from the outer periphery of the back side end of the piece 43A. 43B.
磁気回路４は、ピース４３Ａが振動系３におけるボビン３３の背面側に挿入される。そして、磁気回路４は、ピース４３Ａとプレート４２との環状の隙間に、振動板３１におけるボイスコイル３４が、ピース４３Ａおよびプレート４２に接触しないように配置される。
A piece 43A of the magnetic circuit 4 is inserted on the back side of the bobbin 33 in the vibration system 3 . The magnetic circuit 4 is arranged in the annular gap between the piece 43A and the plate 42 so that the voice coil 34 of the diaphragm 31 does not come into contact with the piece 43A and the plate 42 .
従って、スピーカ１は、ボイスコイル３４に交流の入力音声信号が供給されると、この入力音声信号に対応してマグネット４１との協働により生じるローレンツ力によってボイスコイル３４に放音方向への振動が発生する。このため、スピーカ１は、ボイスコイル３４が巻き回されたボビン３３が振動板３１を伴って放音方向に一体的に振動する。これにより、スピーカ１は、振動板３１から正面側に放音する。また、スピーカ１は、振動板３１と接続されたエッジ３２、およびボビン３３に接続されたダンパ３５が、ボビン３３および振動板３１を支持し、ボイスコイル３４がプレート４２およびピース４３Ａに接触しないようにするとともに、振動に所定の制動を与える。
Therefore, when an AC input audio signal is supplied to the voice coil 34, the loudspeaker 1 causes the voice coil 34 to vibrate in the sound emitting direction due to the Lorentz force generated in cooperation with the magnet 41 in response to the input audio signal. occurs. Therefore, in the speaker 1, the bobbin 33 around which the voice coil 34 is wound integrally vibrates together with the diaphragm 31 in the sound emitting direction. As a result, the speaker 1 emits sound from the diaphragm 31 to the front side. Also, in the speaker 1, the edge 32 connected to the diaphragm 31 and the damper 35 connected to the bobbin 33 support the bobbin 33 and the diaphragm 31 so that the voice coil 34 does not contact the plate 42 and the piece 43A. and give a predetermined damping to the vibration.
上述したスピーカ１は、図２に示すように、例えば、車両などの固定側の板部材５０に取り付けられる。板部材５０は、例えば、鉄板であり、スピーカ１の背面側が挿通される開口孔５０ａが形成されている。スピーカ１は、板部材５０における開口孔５０ａの外周縁部に取付ねじ５により取り付けられる。本実施形態において、スピーカ１は、フレーム２において正面部材２１のフランジ部２１Ａに取付ねじ５を挿通する貫通孔２１Ａｃが放音方向に貫通して形成されている。そして、スピーカ１は、フランジ部２１Ａの貫通孔２１Ａｃに挿通された取付ねじ５によって板部材５０に取り付けられる。本実施形態のスピーカ１は、板部材５０に開口孔５０ａの外周縁部の正面側に沿って環状のブラケット５１が配置される。そして、スピーカ１は、ブラケット５１の正面側にフランジ部２１Ａの背面側の板面２１Ａｂを添わせ、正面側の板面２１Ａａから取付ねじ５をフランジ部２１Ａおよびブラケット５１を貫通させ、開口孔５０ａの外周縁部の背面側のナット５Ａへの相互の締め付けによって板部材５０に取り付けられる。ブラケット５１は、必須ではなく用いなくてもよい。本実施形態のスピーカ１は、図１に示すように、３か所の取付ねじ５により板部材５０に取り付けられる。すなわち、本実施形態のスピーカ１は、正面部材２１のフランジ部２１Ａには、取付ねじ５の数に合わせた３か所に貫通孔２１Ａｃが設けられている。
As shown in FIG. 2, the speaker 1 described above is attached to, for example, a fixed-side plate member 50 of a vehicle or the like. The plate member 50 is, for example, an iron plate, and is formed with an opening hole 50a through which the rear side of the speaker 1 is inserted. The speaker 1 is attached to the outer periphery of the opening 50 a of the plate member 50 with the attachment screws 5 . In the present embodiment, the speaker 1 has a flange portion 21A of a front member 21 in the frame 2, and a through hole 21Ac through which the mounting screw 5 is inserted is formed through the frame 2 in the sound emitting direction. The speaker 1 is attached to the plate member 50 by the attachment screws 5 inserted through the through holes 21Ac of the flange portion 21A. In the speaker 1 of this embodiment, an annular bracket 51 is arranged on the plate member 50 along the front side of the outer peripheral edge of the opening 50a. Then, the speaker 1 is arranged such that the plate surface 21Ab on the rear side of the flange portion 21A is placed on the front side of the bracket 51, the mounting screws 5 are passed through the flange portion 21A and the bracket 51 from the plate surface 21Aa on the front side, and the opening hole 50a is formed. are attached to the plate member 50 by mutually tightening the outer peripheral edge of the rear side of the plate member 5A to the nut 5A. The bracket 51 is not essential and may be omitted. As shown in FIG. 1, the speaker 1 of this embodiment is attached to a plate member 50 with attachment screws 5 at three locations. That is, in the speaker 1 of this embodiment, the flange portion 21A of the front member 21 is provided with three through holes 21Ac corresponding to the number of the mounting screws 5 .
また、本実施形態のスピーカ１は、クッション６を有する。クッション６は、弾性を有する材料、例えば、スポンジなどで形成されている。クッション６は、フレーム２において正面部材２１のフランジ部２１Ａの正面側の板面２１Ａａに沿って環状に配置されている。クッション６は、その一部が、正面部材２１のフランジ部２１Ａの正面側の板面２１Ａａ、またはリブ２１Ｃに貼り付けにより接着されている。スピーカ１は、板部材５０に取り付けられた後、図２に示すように、正面側に内装材５２で覆われる場合、内装材５２の背面側に延びる筒状のカバー５２Ａの先端がクッション６に当接して食い込む。内装材５２は、スピーカ１の振動系３の正面側に多数の貫通孔５２Ｂが形成され、その他の部分が目隠しされている。このため、スピーカ１は、カバー５２Ａとクッション６との当接によりカバー５２Ａの外側への放音の漏れをシールされ、多数の貫通孔５２Ｂからのみ内装材５２の正面側に放音を発する。また、フレーム２において正面部材２１のフランジ部２１Ａに設けられたリブ２１Ｃは、カバー５２Ａに対して径方向で重なり周方向で同心状に配置される。このため、スピーカ１は、リブ２１Ｃおよびカバー５２Ａにより、カバー５２Ａの外側への放音の漏れを相乗してシールできる。また、カバー５２Ａとクッション６との当接、およびリブ２１Ｃおよびカバー５２Ａの上記重なりは、板部材５０の正面側に入った塵埃や水がカバー５２Ａの筒状内へ入り込こまないようシールすることもできる。
Moreover, the speaker 1 of this embodiment has a cushion 6 . The cushion 6 is made of an elastic material such as sponge. The cushion 6 is annularly arranged along the front side plate surface 21Aa of the flange portion 21A of the front member 21 in the frame 2 . A part of the cushion 6 is adhered to the front plate surface 21Aa of the flange portion 21A of the front member 21 or the rib 21C. After the speaker 1 is attached to the plate member 50, as shown in FIG. Abut and bite. The interior material 52 has a large number of through holes 52B formed on the front side of the vibration system 3 of the speaker 1, and other parts are hidden. Therefore, the cover 52A and the cushion 6 are in contact with each other to seal the speaker 1 from sound leakage to the outside of the cover 52A, and sound is emitted to the front side of the interior material 52 only from the many through holes 52B. Further, the rib 21C provided on the flange portion 21A of the front member 21 in the frame 2 overlaps the cover 52A in the radial direction and is arranged concentrically in the circumferential direction. Therefore, in the speaker 1, the rib 21C and the cover 52A can synergistically seal the leakage of the emitted sound to the outside of the cover 52A. The contact between the cover 52A and the cushion 6 and the overlapping of the ribs 21C and the cover 52A prevent dust and water entering the front side of the plate member 50 from entering the cylindrical interior of the cover 52A. can also
図３は、実施形態に係るスピーカの部分拡大斜視図である。
FIG. 3 is a partially enlarged perspective view of the speaker according to the embodiment.
本実施形態のスピーカ１は、上記クッション６に関し、図１に示すように軸線Ｌの図面上の上方に位置する貫通孔２１Ａｃに対してはクッション６を避けて配置し、その他の貫通孔２１Ａｃの正面側にはクッション６が被さるように構成されている。クッション６が貫通孔２１Ａｃの正面側に被さるようにすれば、そうでない構成と比較してスピーカ１の小型化が図れる。なお、全ての貫通孔２１Ａｃの正面側にクッション６が被さるように構成してもよい。なお、貫通孔２１Ａｃは３か所に限定されず、任意の個数であってよい。
Regarding the cushion 6, the speaker 1 of the present embodiment is arranged so as to avoid the cushion 6 with respect to the through hole 21Ac located above the axis L in the drawing as shown in FIG. The front side is configured to be covered with a cushion 6. - 特許庁If the cushion 6 covers the front side of the through hole 21Ac, the size of the speaker 1 can be reduced as compared with other configurations. In addition, you may comprise so that the front side of all the through-holes 21Ac may be covered with the cushion 6. FIG. Note that the number of through-holes 21Ac is not limited to three, and may be any number.
クッション６は、図１および図３に示すように、環状を分断した分断部６Ａが形成されている。言い換えると、クッション６は複数のクッション６１により構成され、それぞれのクッション６１の接する点もしくは接する面が、分断部６Ａである。分断部６Ａは、取付ねじ５が配置される貫通孔２１Ａｃの近くのクッション６の位置に形成される。本実施形態では、クッション６は、被さる取付ねじ５が２か所であるため、各取付ねじ５（貫通孔２１Ａｃ）の付近の２か所に分断部６Ａが形成され、クッション６は２個のクッション６１で構成されている。そして、図１に網掛けで示すように、クッション６１は、取付ねじ５の正面側に被さる一方の端部を正面部材２１に接着せず移動可能とする可動部６Ｂとし、その他の部分となる他方の端部を正面部材２１に接着する固定部６Ｃとする。クッション６１は、可動部６Ｂと固定部６Ｃとの境の部分であって可動部６Ｂの端部の貼り付けられない基となる部分を屈曲部６Ｄとして、折り曲げて変形できるように構成される。なお、固定部６Ｃは、クッション６１の他方の端部に限定されず、クッション６１の所定の部位であってよい。言い換えると、クッション６１の両端が可動部６Ｂであって、その中間部位が固定部６Ｃであってもよい。
As shown in FIGS. 1 and 3, the cushion 6 is formed with a split portion 6A that splits the ring. In other words, the cushion 6 is composed of a plurality of cushions 61, and the contact point or contact surface of each cushion 61 is the dividing portion 6A. The dividing portion 6A is formed at a position of the cushion 6 near the through hole 21Ac in which the mounting screw 5 is arranged. In this embodiment, since the cushion 6 has two mounting screws 5, the dividing portions 6A are formed at two positions near each mounting screw 5 (through hole 21Ac), and the cushion 6 is divided into two parts. It is composed of a cushion 61 . As shown by hatching in FIG. 1, the cushion 61 has one end that covers the front side of the mounting screw 5 as a movable portion 6B that is not adhered to the front member 21 and is movable, and other portions. The other end is used as a fixed portion 6</b>C that is adhered to the front member 21 . The cushion 61 is configured so that it can be bent and deformed, with a bent portion 6D that is a boundary portion between the movable portion 6B and the fixed portion 6C and that is a base portion to which the end portion of the movable portion 6B is not attached. The fixing portion 6C is not limited to the other end portion of the cushion 61, and may be a predetermined portion of the cushion 61. As shown in FIG. In other words, both ends of the cushion 61 may be the movable portion 6B, and the intermediate portion may be the fixed portion 6C.
なお、正面部材２１において、可動部６Ｂが接する部分をクッション６が貼り付けられていない非接着部を２１Ｅとし、固定部６Ｃが配置される部分をクッション６が貼り付けられている接着部を２１Ｆとする。非接着部２１Ｅは、フランジ部２１Ａおよびリブ２１Ｃにおいてクッション６の可動部６Ｂが接着されない部分である。また、接着部２１Ｆは、フランジ部２１Ａやリブ２１Ｃにおいてクッション６の固定部６Ｃが接着されている部分である。以下の説明において、非接着部２１Ｅおよび接着部２１Ｆは、フランジ部２１Ａの正面側の板面２１Ａａとして図示する。
In the front member 21, the movable portion 6B is in contact with the non-adhesive portion 21E to which the cushion 6 is not attached, and the fixed portion 6C is disposed in the adhesive portion 21F to which the cushion 6 is attached. and The non-bonded portion 21E is a portion of the flange portion 21A and the rib 21C to which the movable portion 6B of the cushion 6 is not bonded. The bonding portion 21F is a portion where the fixing portion 6C of the cushion 6 is bonded to the flange portion 21A and the rib 21C. In the following description, the non-bonded portion 21E and the bonded portion 21F are illustrated as a plate surface 21Aa on the front side of the flange portion 21A.
この構成により、スピーカ１は、図３に示すように、クッション６の可動部６Ｂを屈曲部６Ｄで折り曲げて変形し、正面部材２１のフランジ部２１Ａの正面側の板面２１Ａａから遠ざけることで、正面部材２１のフランジ部２１Ａの貫通孔２１Ａｃを露わにすることができる。このため、スピーカ１は、取付ねじ５の正面側に被さる可動部６Ｂを貫通孔２１Ａｃから避け、クッション６の可動部６Ｂを巻き込むことなく取付ねじ５を取り付ける作業を行える。また、スピーカ１は、取付ねじ５を取り付けた後は、可動部６Ｂを取付ねじ５の正面側に被せるようにフランジ部２１Ａの正面側の板面２１Ａａに添わせることができる。
With this configuration, the speaker 1, as shown in FIG. The through hole 21Ac of the flange portion 21A of the front member 21 can be exposed. Therefore, the speaker 1 avoids the movable portion 6B covering the front side of the mounting screw 5 from the through hole 21Ac, and the mounting screw 5 can be mounted without involving the movable portion 6B of the cushion 6. FIG. After the mounting screws 5 are attached to the speaker 1, the movable portion 6B can be placed on the front side plate surface 21Aa of the flange portion 21A so as to cover the front side of the mounting screws 5. As shown in FIG.
ここで、クッション６の可動部６Ｂの可動範囲Ｓは、分断部６Ａから、屈曲部６Ｄで１８０°折り曲げて変形させ、最も遠ざかった状態での可動部６Ｂの端まで、とする。言い換えると、可動部６Ｂの可動範囲Ｓとは、屈曲部６Ｄを中心とする、可動部６Ｂの長さ分の距離範囲内である。
Here, the movable range S of the movable portion 6B of the cushion 6 is from the dividing portion 6A to the farthest end of the movable portion 6B when bent 180° at the bending portion 6D. In other words, the movable range S of the movable portion 6B is within a distance range corresponding to the length of the movable portion 6B centered on the bent portion 6D.
また、本実施形態のスピーカ１は、可動部６Ｂが位置するフレーム２の正面部材２１に突起２１Ｄが形成されている。突起２１Ｄは、図３に示すように、可動部６Ｂが位置する非接着部２１Ｅの範囲において、周方向で、貫通孔２１Ａｃと、可動部６Ｂの屈曲部６Ｄとの間に設けられている。突起２１Ｄは、振動板３１よりも径方向外側であって、フランジ部２１Ａの正面側の板面２１Ａａの径方向外側の外周縁部において正面側に突出して形成されている。スピーカ１の設置後の状態、言い換えるとスピーカ１を設置する際以外の状態においては、突起２１Ｄは可動部６Ｂの径方向外側に当接し、可動部６Ｂがフランジ部２１Ａの正面側の板面２１Ａａに接した状態を維持するよう、可動部６Ｂの移動を規制する。また、スピーカ１を設置する際には、突起２１Ｄは、可動部６Ｂをフランジ部２１Ａの正面側の板面２１Ａａから径方向外側に遠ざけた形態で可動部６Ｂの径方向内側に当接することで、可動部６Ｂが貫通孔２１Ａｃに被さらないよう、可動部６Ｂの移動を規制する。突起２１Ｄは、フランジ部２１Ａの正面側の板面２１Ａａからの突出長さが、可動部６Ｂに当接してその移動を規制する程度であればよい。突起２１Ｄは、クッション６１の可動範囲Ｓ内であれば、貫通孔２１Ａｃに対して屈曲部６Ｄよりも遠方に配置されてもよい。このときクッション６１は、１８０°近く屈曲することで突起２１Ｄにより保持され、スピーカ１を設置する際の可動部６Ｂの移動を規制する。突起２１Ｄは、図１に示す可動部６Ｂの可動範囲Ｓ内に配置されることで、スピーカ１を設置する際に可動部６Ｂが貫通孔２１Ａｃに被さらないよう、可動部６Ｂの移動を規制することができる。
Further, in the speaker 1 of this embodiment, a protrusion 21D is formed on the front member 21 of the frame 2 where the movable portion 6B is located. As shown in FIG. 3, the protrusion 21D is provided between the through hole 21Ac and the bent portion 6D of the movable portion 6B in the circumferential direction in the range of the non-bonded portion 21E where the movable portion 6B is positioned. The projection 21D is radially outward of the diaphragm 31 and protrudes to the front side at the radially outer peripheral edge portion of the plate surface 21Aa on the front side of the flange portion 21A. In a state after the speaker 1 is installed, in other words, in a state other than when the speaker 1 is installed, the protrusion 21D abuts on the radially outer side of the movable portion 6B, and the movable portion 6B contacts the plate surface 21Aa on the front side of the flange portion 21A. The movement of the movable portion 6B is restricted so as to maintain the state of contact with the . Further, when installing the speaker 1, the projection 21D is brought into contact with the radially inner side of the movable portion 6B in such a manner that the movable portion 6B is moved radially outward from the plate surface 21Aa on the front side of the flange portion 21A. , the movement of the movable portion 6B is restricted so that the movable portion 6B does not cover the through hole 21Ac. The protrusion 21D may have a length of protrusion from the plate surface 21Aa on the front side of the flange portion 21A so long as it contacts the movable portion 6B to restrict its movement. The protrusion 21D may be arranged farther than the bent portion 6D with respect to the through hole 21Ac as long as it is within the movable range S of the cushion 61 . At this time, the cushion 61 is bent by nearly 180° and is held by the protrusion 21D, thereby restricting the movement of the movable portion 6B when the speaker 1 is installed. The projection 21D is arranged within the movable range S of the movable portion 6B shown in FIG. 1, and restricts the movement of the movable portion 6B so that the movable portion 6B does not cover the through hole 21Ac when the speaker 1 is installed. can do.
この構成により、スピーカ１は、図３に示すように、可動部６Ｂを屈曲部６Ｄで径方向外側に折り曲げて変形し、正面部材２１のフランジ部２１Ａの正面側の板面２１Ａａから遠ざけた位置を突起２１Ｄにより保持する。この結果、スピーカ１は、正面部材２１のフランジ部２１Ａの貫通孔２１Ａｃを露わにした形態を維持することができる。このため、スピーカ１を設置する際に、取付ねじ５の正面側に被さる可動部６Ｂを貫通孔２１Ａｃから避け、工具や取付ねじ５に対して可動部６Ｂが干渉することがなく取付ねじ５を取り付ける作業を容易に行える。さらに、スピーカ１は、取付ねじ５を取り付ける際に、工具や取付ねじ５に対して可動部６Ｂが巻き込まれて損傷する事態を防止できる。また、スピーカ１は、取付ねじ５を取り付けた後は、可動部６Ｂを取付ねじ５の正面側に被せるようにフランジ部２１Ａの正面側の板面２１Ａａに添わせた位置を突起２１Ｄにより保持する。この結果、スピーカ１は、内装材５２のカバー５２Ａとクッション６との当接状態を良好に確保してシール性能を向上できる。また、スピーカ１は、突起２１Ｄが振動板３１の径方向外側の外周縁部に設けられているため、可動部６Ｂを取付ねじ５の正面側に被せるようにフランジ部２１Ａの正面側の板面２１Ａａに添わせた形態で、振動板３１寄りの径方向内側に向けて可動部６Ｂを保持する。この結果、スピーカ１は、シール性能をより向上できる。
With this configuration, as shown in FIG. 3, the speaker 1 is deformed by bending the movable portion 6B radially outward at the bent portion 6D, and is positioned away from the plate surface 21Aa on the front side of the flange portion 21A of the front member 21. is held by the projection 21D. As a result, the speaker 1 can maintain the form in which the through hole 21Ac of the flange portion 21A of the front member 21 is exposed. Therefore, when installing the speaker 1, the movable portion 6B covering the front side of the mounting screw 5 is avoided from the through hole 21Ac, and the mounting screw 5 can be mounted without the movable portion 6B interfering with the tool or the mounting screw 5. Easy to install. Furthermore, the speaker 1 can prevent a situation in which the movable portion 6B is caught in a tool or the mounting screw 5 and damaged when the mounting screw 5 is mounted. After mounting the mounting screw 5, the speaker 1 is held by the projection 21D at a position where the movable portion 6B is placed on the front side of the mounting screw 5 so as to be placed on the front side plate surface 21Aa of the flange portion 21A. . As a result, the speaker 1 can ensure a good contact state between the cover 52A of the interior material 52 and the cushion 6, thereby improving the sealing performance. Further, since the projection 21D is provided on the outer peripheral edge of the diaphragm 31 on the radially outer side of the speaker 1, the plate surface on the front side of the flange portion 21A is arranged so as to cover the front side of the mounting screw 5 with the movable portion 6B. 21Aa, the movable portion 6B is held radially inward toward the diaphragm 31 side. As a result, the speaker 1 can further improve the sealing performance.
なお、本実施形態のスピーカ１は、分断部６Ａが２か所設けられ、２つの可動部６Ｂが屈曲部６Ｄを基準に同方向に変形できるように構成されている。このように、複数の可動部６Ｂを屈曲部６Ｄを基準に同方向に変形させると、取付ねじ５を取り付ける作業を一方向から行えるため作業性がよい。
The speaker 1 of the present embodiment is provided with two divided portions 6A, and is configured such that the two movable portions 6B can deform in the same direction with respect to the bent portion 6D. In this way, when the plurality of movable portions 6B are deformed in the same direction with respect to the bent portion 6D, the attachment screw 5 can be attached from one direction, resulting in good workability.
図４から図６は、実施形態に係るスピーカの他の形態を示す部分拡大断面図である。
4 to 6 are partially enlarged cross-sectional views showing other forms of the speaker according to the embodiment.
図４に示すスピーカ１は、図１から図３に示す構成に対し、突起２１Ｄａの形態が異なる。突起２１Ｄａは、フレーム２において正面部材２１の径方向内側に設けられたリブ２１Ｃの正面側に延びた端部に設けられ、径方向外側に突出して形成されている。突起２１Ｄａは、非接着部２１Ｅの範囲において、周方向で、貫通孔２１Ａｃと、可動部６Ｂの屈曲部６Ｄとの間に設けられている。スピーカ１の設置後の状態、言い換えるとスピーカ１を設置する際以外の状態においては、突起２１Ｄａは可動部６Ｂの正面側に当接し、可動部６Ｂがフランジ部２１Ａの正面側の板面２１Ａａに接した状態を維持するよう、可動部６Ｂの移動を規制する。また、スピーカ１を設置する際には、突起２１Ｄａは、可動部６Ｂをフランジ部２１Ａの正面側の板面２１Ａａから正面側に遠ざけた形態で可動部６Ｂの背面側に当接することで、可動部６Ｂが貫通孔２１Ａｃに被さらないよう、可動部６Ｂの移動を規制する。突起２１Ｄａは、リブ２１Ｃからの突出長さが、可動部６Ｂに当接してその移動を規制する程度であればよい。さらに、突起２１Ｄａは、軸線Ｌ方向から正面を見た場合に、可動部が孔２１Ａｃに被らない状態になる周方向の位置に配置される（図示しない）。この図４に示すスピーカ１は、突起２１Ｄａにより、正面部材２１のフランジ部２１Ａの貫通孔２１Ａｃを露わにした形態を維持することができ、また、内装材５２のカバー５２Ａとクッション６との当接状態を良好に確保してシール性能を向上できる。突起１２Ｄａが上にあるとネジ頭の分だけクッションが持ち上がることを防ぎ、シール性能を向上できる。突起２１Ｄは、図３に示される例と同様に、図１に示す可動部６Ｂの可動範囲Ｓ内であれば、貫通孔２１Ａｃに対して屈曲部６Ｄよりも遠方に配置されてもよい。
The speaker 1 shown in FIG. 4 differs from the configurations shown in FIGS. 1 to 3 in the shape of the projection 21Da. The protrusion 21Da is provided at the end extending to the front side of the rib 21C provided radially inward of the front member 21 in the frame 2, and protrudes radially outward. The protrusion 21Da is provided between the through hole 21Ac and the bent portion 6D of the movable portion 6B in the circumferential direction in the range of the non-bonded portion 21E. In a state after the speaker 1 is installed, in other words, in a state other than when the speaker 1 is installed, the protrusion 21Da contacts the front side of the movable portion 6B, and the movable portion 6B contacts the plate surface 21Aa on the front side of the flange portion 21A. The movement of the movable portion 6B is restricted so as to maintain the contact state. Further, when the speaker 1 is installed, the projection 21Da contacts the back side of the movable portion 6B in a form in which the movable portion 6B is kept away from the plate surface 21Aa on the front side of the flange portion 21A toward the front side. Movement of the movable portion 6B is restricted so that the portion 6B does not cover the through hole 21Ac. The protrusion 21Da should be such that the protrusion length from the rib 21C contacts the movable portion 6B to regulate its movement. Further, the projection 21Da is arranged at a circumferential position (not shown) in which the movable portion does not cover the hole 21Ac when viewed from the front in the direction of the axis L. The speaker 1 shown in FIG. 4 can maintain the configuration in which the through hole 21Ac of the flange portion 21A of the front member 21 is exposed by the projection 21Da, and the cover 52A of the interior material 52 and the cushion 6 are separated from each other. A good contact state can be ensured to improve the sealing performance. When the projection 12Da is on the top, it is possible to prevent the cushion from being lifted by the amount of the screw head, thereby improving the sealing performance. As in the example shown in FIG. 3, the protrusion 21D may be arranged farther than the bent portion 6D with respect to the through hole 21Ac as long as it is within the movable range S of the movable portion 6B shown in FIG.
図５に示すスピーカ１は、図１から図３に示す構成に対し、リブ２１Ｃａおよび突起２１Ｄｂの形態が異なる。リブ２１Ｃａは、フレーム２において正面部材２１の径方向外側に設けられ、正面側に延びて形成されている。突起２１Ｄｂは、このリブ２１Ｃａの正面側に延びた端部に設けられ、径方向内側に突出して形成されている。突起２１Ｄｂは、非接着部２１Ｅの範囲において、周方向で、貫通孔２１Ａｃと、可動部６Ｂの屈曲部６Ｄとの間に設けられている。スピーカ１の設置後の状態、言い換えるとスピーカ１を設置する際以外の状態においては、突起２１Ｄｂは可動部６Ｂの正面側に当接し、可動部６Ｂがフランジ部２１Ａの正面側の板面２１Ａａに接した状態を維持するよう、可動部６Ｂの移動を規制する。またスピーカ１を設置する際には、突起２１Ｄｂは、可動部６Ｂをフランジ部２１Ａの正面側の板面２１Ａａから正面側に遠ざけた形態で（図５に二点鎖線で示す）、可動部６Ｂの背面側に当接することで、可動部６Ｂが貫通孔２１Ａｃに被さらないよう、可動部６Ｂの移動を規制する。突起２１Ｄｂは、リブ２１Ｃａからの突出長さが、可動部６Ｂに当接してその移動を規制する程度であればよい。さらに、突起２１Ｄａは、軸線Ｌ方向から正面を見た場合に、可動部が孔２１Ａｃに被らない状態になる周方向の位置に配置される（図示しない）。この図５に示すスピーカ１は、突起２１Ｄｂにより、正面部材２１のフランジ部２１Ａの貫通孔２１Ａｃを露わにした形態を維持することができ、また、内装材５２のカバー５２Ａとクッション６との当接状態を良好に確保してシール性能を向上できる。突起１２Ｄａが上にあるとネジ頭の分だけクッションが持ち上がることを防ぎ、シール性能を向上できる。突起２１Ｄは、図３に示される例と同様に、図１に示す可動部６Ｂの可動範囲Ｓ内であれば、貫通孔２１Ａｃに対して屈曲部６Ｄよりも遠方に配置されてもよい。
The speaker 1 shown in FIG. 5 differs from the configurations shown in FIGS. 1 to 3 in the form of ribs 21Ca and projections 21Db. The rib 21Ca is provided radially outside the front member 21 in the frame 2 and extends toward the front side. The protrusion 21Db is provided at the end extending toward the front side of the rib 21Ca and protrudes radially inward. The protrusion 21Db is provided between the through hole 21Ac and the bent portion 6D of the movable portion 6B in the circumferential direction in the range of the non-bonded portion 21E. In the state after the speaker 1 is installed, in other words, in a state other than when the speaker 1 is installed, the projection 21Db contacts the front side of the movable portion 6B, and the movable portion 6B contacts the plate surface 21Aa on the front side of the flange portion 21A. The movement of the movable portion 6B is restricted so as to maintain the contact state. When the speaker 1 is installed, the protrusion 21Db is arranged so that the movable portion 6B is kept away from the plate surface 21Aa on the front side of the flange portion 21A toward the front side (indicated by a chain double-dashed line in FIG. 5). movement of the movable portion 6B is restricted so that the movable portion 6B does not cover the through hole 21Ac. The protrusion 21Db may have a length that protrudes from the rib 21Ca to a degree that contacts the movable portion 6B and regulates its movement. Further, the projection 21Da is arranged at a circumferential position (not shown) in which the movable portion does not cover the hole 21Ac when viewed from the front in the direction of the axis L. The projection 21Db allows the speaker 1 shown in FIG. A good contact state can be ensured to improve the sealing performance. When the projection 12Da is on the top, it is possible to prevent the cushion from being lifted by the amount of the screw head, thereby improving the sealing performance. As in the example shown in FIG. 3, the protrusion 21D may be arranged farther than the bent portion 6D with respect to the through hole 21Ac as long as it is within the movable range S of the movable portion 6B shown in FIG.
図６に示すスピーカ１は、図１から図３に示す構成に対し、リブ２１Ｃａおよび突起２１Ｄｃの形態が異なる。リブ２１Ｃａは、フレーム２において正面部材２１の径方向外側に設けられ、正面側に延びて形成されている。突起２１Ｄｃは、正面部材２１においてリブ２１Ｃａと対向する径方向内側となる支持部２１Ｂの近傍にて、正面側に突出して形成されている。突起２１Ｄｃは、非接着部２１Ｅの範囲において、周方向で、貫通孔２１Ａｃと、クッション６１の屈曲部６Ｄとの間に設けられている。スピーカ１の設置後の状態、言い換えるとスピーカ１を設置する際以外の状態においては、突起２１Ｄｃは可動部６Ｂの径方向内側に当接し、可動部６Ｂがフランジ部２１Ａの正面側の板面２１Ａａに接した状態を維持するよう、可動部６Ｂの移動を規制する。またスピーカ１を設置する際には、突起２１Ｄｃは、可動部６Ｂをフランジ部２１Ａの正面側の板面２１Ａａから正面側および径方向内側に遠ざけた形態で（図６に二点鎖線で示す）、可動部６Ｂの径方向外側に当接することで、可動部６Ｂが貫通孔２１Ａｃに被さらないよう、可動部６Ｂの移動を規制する。突起２１Ｄｃは、正面側への突出長さが、可動部６Ｂに当接してその移動を規制する程度であればよい。この図６に示すスピーカ１は、突起２１Ｄｃにより、正面部材２１のフランジ部２１Ａの貫通孔２１Ａｃを露わにした形態を維持することができ、また、内装材５２のカバー５２Ａとクッション６との当接状態を良好に確保してシール性能を向上できる。突起２１Ｄは、図３に示される例と同様に、図１に示す可動部６Ｂの可動範囲Ｓ内であれば、貫通孔２１Ａｃに対して屈曲部６Ｄよりも遠方に配置されてもよい。
The speaker 1 shown in FIG. 6 differs from the configurations shown in FIGS. 1 to 3 in the form of ribs 21Ca and projections 21Dc. The rib 21Ca is provided radially outside the front member 21 in the frame 2 and extends toward the front side. The protrusion 21Dc is formed to protrude toward the front side in the vicinity of the support portion 21B on the radially inner side facing the rib 21Ca in the front member 21 . The protrusion 21Dc is provided between the through-hole 21Ac and the bent portion 6D of the cushion 61 in the circumferential direction in the range of the non-bonded portion 21E. In a state after the speaker 1 is installed, in other words, in a state other than when the speaker 1 is installed, the projection 21Dc abuts on the radially inner side of the movable portion 6B, and the movable portion 6B contacts the plate surface 21Aa on the front side of the flange portion 21A. The movement of the movable portion 6B is restricted so as to maintain the state of contact with the . When the speaker 1 is installed, the projection 21Dc is arranged such that the movable portion 6B is moved away from the plate surface 21Aa on the front side of the flange portion 21A toward the front side and radially inward (indicated by a chain double-dashed line in FIG. 6). , the movement of the movable portion 6B is restricted so that the movable portion 6B does not cover the through hole 21Ac by abutting on the radially outer side of the movable portion 6B. The protrusion 21Dc may have a length that protrudes toward the front side such that it contacts the movable portion 6B and restricts its movement. The speaker 1 shown in FIG. 6 can maintain the form in which the through hole 21Ac of the flange portion 21A of the front member 21 is exposed by the protrusion 21Dc, and the cover 52A of the interior material 52 and the cushion 6 are separated from each other. A good contact state can be ensured to improve the sealing performance. As in the example shown in FIG. 3, the protrusion 21D may be arranged farther than the bent portion 6D with respect to the through hole 21Ac as long as it is within the movable range S of the movable portion 6B shown in FIG.
図７Ａから図１４は、本実施形態のスピーカの部分拡大図である。図７Ａおよび図７Ｂおよび図１０は、正面図で示し、図８は、側面図で示し、図９、図１１から図１４は、斜視図で示している。
7A to 14 are partially enlarged views of the speaker of this embodiment. 7A, 7B and 10 are shown in front view, FIG. 8 is shown in side view and FIGS. 9, 11-14 are shown in perspective view.
図７Ａから図１４に示すスピーカ１は、クッション６の分断部６Ａに嵌合部６Ｅが設けられている。嵌合部６Ｅは、接着部２１Ｆに固定されるひとつのクッション６１の固定部６Ｃと、非接着部２１Ｅに接して移動可能とする他のクッション６１の可動部６Ｂとの相互の端６Ｃａ，６Ｂａを嵌合する。なお、図８から図１４において、分断部６Ａは、相互の端６Ｃａ，６Ｂａが接触している構成であるが、説明の便宜上、端６Ｃａ，６Ｂａを離して示している。なお、クッション６がひとつのクッション６１で構成される場合は、クッション６１の一方の端部である可動部６Ｂと、他方の端部である固定部６Ｃとを篏合する構成となる。
In the speaker 1 shown in FIGS. 7A to 14, a fitting portion 6E is provided in a dividing portion 6A of the cushion 6. As shown in FIG. The fitting portion 6E is defined by mutual ends 6Ca and 6Ba of a fixed portion 6C of one cushion 61 fixed to the adhesive portion 21F and a movable portion 6B of another cushion 61 which is movable in contact with the non-adhesive portion 21E. mating. In FIGS. 8 to 14, the split portion 6A is configured such that the ends 6Ca and 6Ba are in contact with each other, but the ends 6Ca and 6Ba are shown separated for convenience of explanation. When the cushion 6 is composed of one cushion 61, the movable portion 6B, which is one end of the cushion 61, and the fixed portion 6C, which is the other end, are fitted together.
図７Ａに示すスピーカ１は、可動部６Ｂの端６Ｂａと、固定部６Ｃの端６Ｃａとが、相互に面で接触する接触面として構成されている。各接触面である各端６Ｂａ，６Ｃａは、平坦面として図示しているが、平坦でなくてもよい。図７Ａに示すように、可動部６Ｂの端６Ｂａと、固定部６Ｃの端６Ｃａの接触面が互いに嵌合しており、固定部６Ｃが可動部６Ｂの径方向外側への動きを規制する構造を有する。言い換えると、可動部６Ｂは固定部６Ｃとリブ２１Ｃａに径方向に挟まれるように抑えられている。そして、図７Ａに示すスピーカ１において、嵌合部６Ｅは、各接触面である端６Ｂａ，６Ｃａにおいて、固定部６Ｃの端６Ｃａの径方向外側部６Ｃａｂが、径方向内側部６Ｃａａよりも周方向で突出して形成されている。固定部６Ｃの端６Ｃａの径方向外側部６Ｃａｂや径方向内側部６Ｃａａは、接触面である端６Ｃａの縁として図示しているが、径方向外側部６Ｃａｂが径方向内側部６Ｃａａよりも径方向外側に位置する関係であればよい。また、可動部６Ｂの接触面である端６Ｂａの径方向内側部６Ｂａａが、径方向外側部６Ｂａｂよりも周方向で突出して形成されている。可動部６Ｂの端６Ｂａの径方向内側部６Ｂａａや径方向外側部６Ｂａｂは、接触面である端６Ｂａの縁として図示しているが、径方向外側部６Ｂａｂが径方向内側部６Ｂａａよりも径方向外側に位置する関係であればよい。
In the speaker 1 shown in FIG. 7A, the end 6Ba of the movable portion 6B and the end 6Ca of the fixed portion 6C are configured as contact surfaces that are in surface contact with each other. Although each end 6Ba, 6Ca, which is each contact surface, is illustrated as a flat surface, it may not be flat. As shown in FIG. 7A, the contact surfaces of the end 6Ba of the movable portion 6B and the end 6Ca of the fixed portion 6C are engaged with each other, and the fixed portion 6C restricts the radially outward movement of the movable portion 6B. have In other words, the movable portion 6B is restrained so as to be sandwiched between the fixed portion 6C and the rib 21Ca in the radial direction. In the speaker 1 shown in FIG. 7A, the fitting portion 6E is such that, at the ends 6Ba and 6Ca, which are contact surfaces, the radially outer portion 6Cab of the end 6Ca of the fixing portion 6C is positioned more circumferentially than the radially inner portion 6Caa. It is formed protruding from the The radially outer portion 6Cab and the radially inner portion 6Caa of the end 6Ca of the fixed portion 6C are illustrated as the edge of the end 6Ca, which is the contact surface. It is sufficient if the relation is located on the outside. A radially inner portion 6Baa of the end 6Ba, which is a contact surface of the movable portion 6B, is formed to protrude in the circumferential direction from the radially outer portion 6Bab. The radially inner portion 6Baa and the radially outer portion 6Bab of the end 6Ba of the movable portion 6B are illustrated as the edge of the end 6Ba, which is the contact surface. It is sufficient if the relation is located on the outside.
図７Ａに示すスピーカ１は、クッション６の可動部６Ｂをフランジ部２１Ａの正面側の板面２１Ａａに接して配置した状態において、嵌合部６Ｅにて、各接触面である各端６Ｂａ，６Ｃａが嵌合する。このとき、クッション６は、可動部６Ｂと固定部６Ｃとの相互の接触面である各端６Ｂａ，６Ｃａが径方向に対して斜めに接触する。さらに、クッション６は、固定部６Ｃの端６Ｃａの径方向外側部６Ｃａｂが、径方向内側部６Ｃａａよりも周方向で突出して形成され、可動部６Ｂの接触面である端６Ｂａの径方向内側部６Ｂａａが、径方向外側部６Ｂａｂよりも周方向で突出して形成されているため、固定部６Ｃの端６Ｃａにより、可動部６Ｂの端６Ｂａの、径方向外側への移動が規制される。このように、図７Ａに示すスピーカ１は、嵌合部６Ｅにより、クッション６の固定部６Ｃと可動部６Ｂとの嵌合部６Ｅにおける相互の端６Ｂａ，６Ｃａを嵌合する。この結果、図７Ａに示すスピーカ１は、内装材５２のカバー５２Ａとクッション６との当接状態を良好に確保してシール性能を向上できる。
In the speaker 1 shown in FIG. 7A, in a state in which the movable portion 6B of the cushion 6 is arranged in contact with the plate surface 21Aa on the front side of the flange portion 21A, the ends 6Ba and 6Ca, which are the contact surfaces, are arranged at the fitting portion 6E. are mated. At this time, the ends 6Ba and 6Ca of the cushion 6, which are the mutual contact surfaces of the movable portion 6B and the fixed portion 6C, contact obliquely with respect to the radial direction. Further, the cushion 6 is formed such that the radially outer portion 6Cab of the end 6Ca of the fixed portion 6C protrudes in the circumferential direction from the radially inner portion 6Caa, and the radially inner portion of the end 6Ba that is the contact surface of the movable portion 6B. Since 6Baa is formed to protrude in the circumferential direction from radially outer portion 6Bab, end 6Ca of fixed portion 6C restricts the radially outward movement of end 6Ba of movable portion 6B. In this manner, in the speaker 1 shown in FIG. 7A, the mutual ends 6Ba and 6Ca of the fixed portion 6C and the movable portion 6B of the cushion 6 at the fitting portion 6E are fitted by the fitting portion 6E. As a result, in the speaker 1 shown in FIG. 7A, a good contact state between the cover 52A of the interior material 52 and the cushion 6 can be ensured, and the sealing performance can be improved.
なお、図７Ｂに示すように、スピーカ１は、クッション６の可動部６Ｂを屈曲部６Ｄで径方向外側に折り曲げて変形し、正面部材２１のフランジ部２１Ａの正面側の板面２１Ａａから遠ざけた場合、可動部６Ｂの端６Ｂａの径方向内側部６Ｂａａが、固定部６Ｃの端６Ｃａの径方向外側部６Ｃａｂに引っ掛かって保持される。言い換えると、可動部６Ｂは、固定部６Ｃの突出した径方向外側部６Ｃａｂよりも、径方向外側に保持される。この結果、スピーカ１を設置する際には、正面部材２１のフランジ部２１Ａの貫通孔２１Ａｃを露わにした形態を維持することができる。このため、スピーカ１は、取付ねじ５の正面側に被さる可動部６Ｂを貫通孔２１Ａｃから避け、工具や取付ねじ５に対して可動部６Ｂが干渉することがなく取付ねじ５を取り付ける作業を容易に行える。さらに、スピーカ１は、取付ねじ５を取り付ける際に、工具や取付ねじ５に対して可動部６Ｂが巻き込まれて損傷する事態を防止できる。また、図７Ａには突起２１Ｄが記載されているが、突起２１Ｄが無い状態であっても、上述したように可動部６Ｂが貫通孔２１Ａｃに被さらない状態を保持することができるため、突起２１Ｄは無くてもよい。
In addition, as shown in FIG. 7B, the speaker 1 is deformed by bending the movable portion 6B of the cushion 6 radially outward at the bent portion 6D, and is moved away from the plate surface 21Aa on the front side of the flange portion 21A of the front member 21. In this case, the radially inner portion 6Baa of the end 6Ba of the movable portion 6B is hooked and held by the radially outer portion 6Cab of the end 6Ca of the fixed portion 6C. In other words, the movable portion 6B is held radially outward of the projecting radially outer portion 6Cab of the fixed portion 6C. As a result, when the speaker 1 is installed, it is possible to maintain the configuration in which the through hole 21Ac of the flange portion 21A of the front member 21 is exposed. Therefore, the speaker 1 avoids the movable portion 6B covering the front side of the mounting screw 5 from the through hole 21Ac, and the movable portion 6B does not interfere with the tool or the mounting screw 5, thereby facilitating the work of mounting the mounting screw 5. can be done Furthermore, the speaker 1 can prevent a situation in which the movable portion 6B is caught in a tool or the mounting screw 5 and damaged when the mounting screw 5 is mounted. Moreover, although the projection 21D is shown in FIG. 7A, even if the projection 21D is not present, the movable portion 6B can be kept from covering the through hole 21Ac as described above. 21D may be omitted.
図８に示すスピーカ１は、可動部６Ｂの端６Ｂａと、固定部６Ｃの端６Ｃａとが、相互に面で接触する接触面として構成されている。各接触面である各端６Ｂａ，６Ｃａは、平坦面として図示しているが、平坦でなくてもよい。図８に示すクッション６は、可動部６Ｂの端６Ｂａと、固定部６Ｃの端６Ｃａの接触面が、可動部６Ｂの放音方向正面側への動きを規制する構造を有する。そして、図８に示すスピーカ１において、嵌合部６Ｅは、各接触面である端６Ｂａ，６Ｃａにおいて、固定部６Ｃの端６Ｃａの放音方向正面側部６Ｃａｃが、放音方向背面側部６Ｃａｄよりも周方向で突出して形成されている。固定部６Ｃの端６Ｃａの放音方向正面側部６Ｃａｃや放音方向背面側部６Ｃａｄは、接触面である端６Ｃａの縁として図示しているが、放音方向正面側部６Ｃａｃが放音方向背面側部６Ｃａｄよりも放音方向正面側に位置する関係であればよい。また、可動部６Ｂの接触面である端６Ｂａの放音方向背面側部６Ｂａｄが、放音方向正面側部６Ｂａｃよりも周方向で突出して形成されている。可動部６Ｂの端６Ｂａの放音方向正面側部６Ｂａｃや放音方向背面側部６Ｂａｄは、接触面である端６Ｂａの縁として図示しているが、放音方向正面側部６Ｂａｃが放音方向背面側部６Ｂａｄよりも放音方向正面側に位置する関係であればよい。
In the speaker 1 shown in FIG. 8, the end 6Ba of the movable portion 6B and the end 6Ca of the fixed portion 6C are configured as contact surfaces that are in surface contact with each other. Although each end 6Ba, 6Ca, which is each contact surface, is illustrated as a flat surface, it may not be flat. The cushion 6 shown in FIG. 8 has a structure in which the contact surface between the end 6Ba of the movable portion 6B and the end 6Ca of the fixed portion 6C restricts the movement of the movable portion 6B toward the front side in the sound emitting direction. In the speaker 1 shown in FIG. 8, the fitting portion 6E has ends 6Ba and 6Ca which are contact surfaces, and the sound emitting direction front side portion 6Cac of the end 6Ca of the fixing portion 6C is connected to the sound emitting direction rear side portion 6Cad. It is formed so as to protrude in the circumferential direction. The sound emitting direction front side portion 6Cac and the sound emitting direction back side portion 6Cad of the end 6Ca of the fixing portion 6C are illustrated as edges of the end 6Ca which is the contact surface, but the sound emitting direction front side portion 6Cac is the sound emitting direction. It is sufficient if they are located on the front side in the direction of sound emission from the rear side portion 6Cad. Further, the sound emitting direction rear side portion 6Bad of the end 6Ba, which is the contact surface of the movable portion 6B, protrudes in the circumferential direction from the sound emitting direction front side portion 6Bac. The sound emitting direction front side portion 6Bac and the sound emitting direction back side portion 6Bad of the end 6Ba of the movable portion 6B are illustrated as the edges of the end 6Ba which is the contact surface, but the sound emitting direction front side portion 6Bac is the sound emitting direction. It is sufficient that they are located on the front side in the direction of sound emission from the rear side portion 6Bad.
この図８に示すスピーカ１は、クッション６の可動部６Ｂをフランジ部２１Ａの正面側の板面２１Ａａに接して配置した状態において、嵌合部６Ｅにて、各接触面である各端６Ｂａ，６Ｃａが接触する。このとき、クッション６は、可動部６Ｂと固定部６Ｃとの相互の接触面である各端６Ｂａ，６Ｃａが放音方向に対して斜めに接触する。さらに、クッション６は、固定部６Ｃの端６Ｃａの放音方向正面側部６Ｃａｃが、放音方向背面側部６Ｃａｄよりも周方向で突出して形成され、可動部６Ｂの接触面である端６Ｂａの放音方向背面側部６Ｂａｄが、放音方向正面側部６Ｂａｃよりも周方向で突出して形成されているため、固定部６Ｃの端６Ｃａにより、可動部６Ｂの端６Ｂａの、放音方向正面側への移動が規制される。このように、図８に示すスピーカ１は、嵌合部６Ｅにより、クッション６の固定部６Ｃと可動部６Ｂとの嵌合部６Ｅにおける相互の端６Ｂａ，６Ｃａを嵌合する。この結果、図８に示すスピーカ１は、内装材５２のカバー５２Ａとクッション６との当接状態を良好に確保してシール性能を向上できる。さらに、この実施例の嵌合部６Ｅの形状によってネジ頭の分だけクッションが持ち上がることを防ぎ、シール性能を向上できる。また、突起２１Ｄを配置することによって、さらに可動部６Ｂが貫通孔２１Ａｃに被さらない状態を保持することができる。
In the speaker 1 shown in FIG. 8, when the movable portion 6B of the cushion 6 is arranged in contact with the plate surface 21Aa on the front side of the flange portion 21A, the ends 6Ba, 6B, 6B, 6B, 6B, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ca come into contact. At this time, the ends 6Ba and 6Ca of the cushion 6, which are the mutual contact surfaces of the movable portion 6B and the fixed portion 6C, come into contact obliquely with respect to the sound emitting direction. Further, the cushion 6 is formed such that the sound emitting direction front side portion 6Cac of the end 6Ca of the fixed portion 6C protrudes in the circumferential direction from the sound emitting direction back side portion 6Cad, and the end 6Ba of the end 6Ba that is the contact surface of the movable portion 6B is formed. Since the sound emitting direction rear side portion 6Bad is formed to protrude in the circumferential direction from the sound emitting direction front side portion 6Bac, the end 6Ca of the fixed portion 6C moves the end 6Ba of the movable portion 6B toward the sound emitting direction front side. movement is restricted. Thus, in the speaker 1 shown in FIG. 8, the ends 6Ba and 6Ca of the fixed portion 6C and the movable portion 6B of the cushion 6 are fitted to each other by the fitting portion 6E. As a result, in the speaker 1 shown in FIG. 8, the contact state between the cover 52A of the interior material 52 and the cushion 6 can be maintained satisfactorily, and the sealing performance can be improved. Furthermore, the shape of the fitting portion 6E of this embodiment prevents the cushion from being lifted by the amount of the screw head, thereby improving the sealing performance. Further, by arranging the projection 21D, it is possible to maintain a state in which the movable portion 6B does not cover the through hole 21Ac.
なお、図９に示すように、図８に示すスピーカ１の上記構成と、図７Ａに示すスピーカ１の上記構成とを組み合わせてもよい。この場合、嵌合部６Ｅは、略平行四辺形の面となる。詳しくは、クッション６の可動部６Ｂの径方向内側（径方向内側部６Ｂａａ）、かつ、放音方向背面側（放音方向背面側６Ｂａｂ）が周方向に最も突出し、クッション６の可動部６Ｂの径方向外側（径方向外側部６Ｂａｄ）、かつ、放音方向正面側（放音方向正面側部６Ｂａｃ）が周方向に最も引っ込んでおり、これらを通る面によって傾斜状に切られた面（端６Ｂａ）が嵌合面となる。同様にクッション６の固定部６Ｃは、径方向外側（径方向外側部６Ｃａｂ）、かつ、放音方向正面側（放音方向正面側部６Ｃａｃ）が周方向に最も突出し、クッション６の固定部６Ｃの径方向内側（径方向内側部６Ｃａａ）、かつ、放音方向背面側（放音方向背面側部６Ｃａｄ）が周方向に最も引っ込んだ形状となり、これらを通る面によって傾斜状に切られた面（端６Ｃａ）が嵌合面となる。これにより、クッション６は、可動部６Ｂが径方向および放音方向への移動を規制されることとなる。この結果、スピーカ１は、内装材５２のカバー５２Ａとクッション６との当接状態を良好に確保してシール性能を向上できる。また、図９に示すスピーカ１のように、図８に示すスピーカ１の上記構成と、図７Ａに示すスピーカ１の上記構成とを組み合わせた場合、可動部６Ｂの端６Ｂａの径方向内側部６Ｂａａが、固定部６Ｃの端６Ｃａの径方向外側部６Ｃａｂに引っ掛かって保持するため、正面部材２１のフランジ部２１Ａの貫通孔２１Ａｃを露わにした形態を維持できる。
9, the configuration of the speaker 1 shown in FIG. 8 and the configuration of the speaker 1 shown in FIG. 7A may be combined. In this case, the fitting portion 6E has a substantially parallelogram surface. Specifically, the radial inner side (radial inner portion 6Baa) and the sound emitting direction rear side (sound emitting direction rear side 6Bab) of the movable portion 6B of the cushion 6 protrude most in the circumferential direction. The radially outer side (radial outer side portion 6Bad) and the sound emitting direction front side (sound emitting direction front side portion 6Bac) are recessed most in the circumferential direction. 6Ba) is the mating surface. Similarly, the fixed portion 6C of the cushion 6 protrudes radially outward (radially outer portion 6Cab) and on the front side in the sound emitting direction (front side portion 6Cac in the sound emitting direction) the most in the circumferential direction. The radially inner side (radial inner portion 6Caa) and the back side in the sound emitting direction (back side portion 6Cad in the sound emitting direction) are the most recessed in the circumferential direction, and the surface cut in an inclined shape by a plane passing through them (End 6Ca) serves as a fitting surface. As a result, the movable portion 6B of the cushion 6 is restricted from moving in the radial direction and the sound emitting direction. As a result, the speaker 1 can ensure a good contact state between the cover 52A of the interior material 52 and the cushion 6, thereby improving the sealing performance. 8 and the configuration of the speaker 1 shown in FIG. 7A are combined as in the speaker 1 shown in FIG. However, since it is held by being caught by the radially outer portion 6Cab of the end 6Ca of the fixed portion 6C, the configuration in which the through hole 21Ac of the flange portion 21A of the front member 21 is exposed can be maintained.
図１０に示すスピーカ１は、可動部６Ｂの端６Ｂａと、固定部６Ｃの端６Ｃａとが、相互に面で接触する接触面として構成されている。図１０に示すクッション６は、可動部６Ｂの端６Ｂａと、固定部６Ｃの端６Ｃａの接触面が、可動部６Ｂの径方向外側への動きを規制する構造を有する。そして、図１０に示すスピーカ１において、嵌合部６Ｅは、各接触面である端６Ｂａ，６Ｃａにおいて、凸部６Ｂｅと凹部６Ｃｅとからなる。凸部６Ｂｅは、可動部６Ｂの端６Ｂａの径方向内側において固定部６Ｃに向かって周方向に突出して形成されている。可動部６Ｂの凸部６Ｂｅは、径方向外側に向く径方向外面６Ｂｅａを有する。凹部６Ｃｅは、固定部６Ｃの端６Ｃａの径方向内側において可動部６Ｂから遠ざかるように周方向でへこんで形成されている。固定部６Ｃの凹部６Ｃｅは、径方向内側に向く径方向内面６Ｃｅａを有する。凸部６Ｂｅと凹部６Ｃｅとは、互いに嵌め合う。凸部６Ｂｅと凹部６Ｃｅとが嵌め合うことで、可動部６Ｂの端（接触面）６Ｂａと、固定部６Ｃの端（接触面）６Ｃａとが接触する。また、凸部６Ｂｅと凹部６Ｃｅとが嵌め合うことで、凸部６Ｂｅの径方向外面６Ｂｅａと凹部６Ｃｅの径方向内面６Ｃｅａとが径方向で相互に向き合って当接する。
In the speaker 1 shown in FIG. 10, the end 6Ba of the movable portion 6B and the end 6Ca of the fixed portion 6C are configured as contact surfaces that are in surface contact with each other. The cushion 6 shown in FIG. 10 has a structure in which the contact surface between the end 6Ba of the movable portion 6B and the end 6Ca of the fixed portion 6C restricts the radially outward movement of the movable portion 6B. In the speaker 1 shown in FIG. 10, the fitting portion 6E is composed of a convex portion 6Be and a concave portion 6Ce at the ends 6Ba and 6Ca, which are contact surfaces. The convex portion 6Be is formed radially inside the end 6Ba of the movable portion 6B so as to protrude in the circumferential direction toward the fixed portion 6C. The convex portion 6Be of the movable portion 6B has a radial outer surface 6Bea facing radially outward. The recessed portion 6Ce is recessed in the radial direction inside the end 6Ca of the fixed portion 6C so as to be distant from the movable portion 6B in the circumferential direction. The recessed portion 6Ce of the fixed portion 6C has a radially inner surface 6Cea facing radially inward. The convex portion 6Be and the concave portion 6Ce are fitted to each other. By fitting the convex portion 6Be and the concave portion 6Ce, the end (contact surface) 6Ba of the movable portion 6B and the end (contact surface) 6Ca of the fixed portion 6C come into contact with each other. Further, by fitting the convex portion 6Be and the concave portion 6Ce, the radial outer surface 6Bea of the convex portion 6Be and the radial inner surface 6Cea of the concave portion 6Ce come into contact with each other in the radial direction.
この図１０に示すスピーカ１は、クッション６の可動部６Ｂをフランジ部２１Ａの正面側の板面２１Ａａに接して配置した状態において、嵌合部６Ｅにて、各接触面である各端６Ｂａ，６Ｃａが接触する。このとき、クッション６は、可動部６Ｂの凸部６Ｂｅが固定部の凹部６Ｃｅに嵌り、凸部６Ｂｅの径方向外面６Ｂｅａが凹部６Ｃｅの径方向内面６Ｃｅａに当接することで、可動部６Ｂの端６Ｂａの、径方向外側への移動が規制される。このように、図１０に示すスピーカ１は、嵌合部６Ｅにより、クッション６の固定部６Ｃと可動部６Ｂとの嵌合部６Ｅにおける相互の端６Ｂａ，６Ｃａを嵌合する。この結果、図１０に示すスピーカ１は、内装材５２のカバー５２Ａとクッション６との当接状態を良好に確保してシール性能を向上できる。
In the speaker 1 shown in FIG. 10, when the movable portion 6B of the cushion 6 is arranged in contact with the plate surface 21Aa on the front side of the flange portion 21A, the ends 6Ba, 6B, 6B, 6B, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ca come into contact. At this time, the convex portion 6Be of the movable portion 6B fits into the concave portion 6Ce of the fixed portion, and the radial outer surface 6Bea of the convex portion 6Be abuts the radial inner surface 6Cea of the concave portion 6Ce. 6Ba is restricted from moving radially outward. In this manner, in the speaker 1 shown in FIG. 10, the mutual ends 6Ba and 6Ca of the fixed portion 6C and the movable portion 6B of the cushion 6 at the fitting portion 6E are fitted by the fitting portion 6E. As a result, in the speaker 1 shown in FIG. 10, the contact state between the cover 52A of the interior material 52 and the cushion 6 can be maintained satisfactorily, and the sealing performance can be improved.
なお、図１０に示すスピーカ１は、クッション６の可動部６Ｂを屈曲部６Ｄで径方向外側に折り曲げて変形し、正面部材２１のフランジ部２１Ａの正面側の板面２１Ａａから遠ざけた場合、可動部６Ｂの端６Ｂａの凸部６Ｂｅが、固定部６Ｃの端６Ｃａの径方向外側部分に引っ掛かって保持される。言い換えると、可動部６Ｂは、固定部６Ｃの端６Ｃａよりも、径方向外側に保持される。この結果、スピーカ１を設置する際には、正面部材２１のフランジ部２１Ａの貫通孔２１Ａｃを露わにした形態を維持することができる。このため、スピーカ１は、取付ねじ５の正面側に被さる可動部６Ｂを貫通孔２１Ａｃから避け、工具や取付ねじ５に対して可動部６Ｂが干渉することがなく取付ねじ５を取り付ける作業を容易に行える。さらに、スピーカ１は、取付ねじ５を取り付ける際に、工具や取付ねじ５に対して可動部６Ｂが巻き込まれて損傷する事態を防止できる。また、図１０には突起２１Ｄが記載されているが、突起２１Ｄが無い状態であっても、上述したように可動部６Ｂが貫通孔２１Ａｃに被さらない状態を保持することができるため、突起２１Ｄは無くてもよい。
The speaker 1 shown in FIG. 10 is deformed by bending the movable portion 6B of the cushion 6 radially outward at the bent portion 6D, and is moved away from the plate surface 21Aa on the front side of the flange portion 21A of the front member 21. The convex portion 6Be of the end 6Ba of the portion 6B is hooked and held by the radially outer portion of the end 6Ca of the fixed portion 6C. In other words, the movable portion 6B is held radially outward of the end 6Ca of the fixed portion 6C. As a result, when the speaker 1 is installed, it is possible to maintain the configuration in which the through hole 21Ac of the flange portion 21A of the front member 21 is exposed. Therefore, the speaker 1 avoids the movable portion 6B covering the front side of the mounting screw 5 from the through hole 21Ac, and the movable portion 6B does not interfere with the tool or the mounting screw 5, thereby facilitating the work of mounting the mounting screw 5. can be done Furthermore, the speaker 1 can prevent a situation in which the movable portion 6B is caught in a tool or the mounting screw 5 and damaged when the mounting screw 5 is mounted. Further, FIG. 10 shows the projection 21D, but even without the projection 21D, the movable portion 6B can be kept from covering the through hole 21Ac as described above. 21D may be omitted.
図１１に示すスピーカ１は、可動部６Ｂの端６Ｂａと、固定部６Ｃの端６Ｃａとが、相互に面で接触する接触面として構成されている。図１１に示すクッション６は、可動部６Ｂの端６Ｂａと、固定部６Ｃの端６Ｃａの接触面が、可動部６Ｂの放音方向正面側への動きを規制する構造を有する。そして、図１１に示すスピーカ１において、嵌合部６Ｅは、各接触面である端６Ｂａ，６Ｃａにおいて、凸部６Ｂｅと凹部６Ｃｅとからなる。凸部６Ｂｅは、可動部６Ｂの端６Ｂａの放音方向背面側において固定部６Ｃに向かって周方向に突出して形成されている。可動部６Ｂの凸部６Ｂｅは、放音方向正面側に向く放音方向正面６Ｂｅｂを有する。凹部６Ｃｅは、固定部６Ｃの端６Ｃａの放音方向背面側において可動部６Ｂから遠ざかるように周方向でへこんで形成されている。固定部６Ｃの凹部６Ｃｅは、放音方向背面側に向く放音方向背面６Ｃｅｂを有する。凸部６Ｂｅと凹部６Ｃｅとは、互いに嵌め合う。凸部６Ｂｅと凹部６Ｃｅとが嵌め合うことで、可動部６Ｂの端（接触面）６Ｂａと、固定部６Ｃの端（接触面）６Ｃａとが接触する。また、凸部６Ｂｅと凹部６Ｃｅとが嵌め合うことで、凸部６Ｂｅの放音方向正面６Ｂｅｂと凹部６Ｃｅの放音方向背面６Ｃｅｂとが放音方向で相互に向き合って当接する。
In the speaker 1 shown in FIG. 11, the end 6Ba of the movable portion 6B and the end 6Ca of the fixed portion 6C are configured as contact surfaces that are in surface contact with each other. The cushion 6 shown in FIG. 11 has a structure in which the contact surface between the end 6Ba of the movable portion 6B and the end 6Ca of the fixed portion 6C restricts the movement of the movable portion 6B toward the front side in the sound emitting direction. In the speaker 1 shown in FIG. 11, the fitting portion 6E is composed of a convex portion 6Be and a concave portion 6Ce at the ends 6Ba and 6Ca, which are contact surfaces. The convex portion 6Be is formed so as to protrude in the circumferential direction toward the fixed portion 6C from the back side of the end 6Ba of the movable portion 6B in the sound emitting direction. The convex portion 6Be of the movable portion 6B has a front surface 6Beb in the sound emitting direction facing the front side in the sound emitting direction. The concave portion 6Ce is recessed in the circumferential direction so as to move away from the movable portion 6B on the back side of the end 6Ca of the fixed portion 6C in the sound emission direction. The recessed portion 6Ce of the fixing portion 6C has a sound emitting direction rear surface 6Ceb facing the sound emitting direction rear surface side. The convex portion 6Be and the concave portion 6Ce are fitted to each other. By fitting the convex portion 6Be and the concave portion 6Ce, the end (contact surface) 6Ba of the movable portion 6B and the end (contact surface) 6Ca of the fixed portion 6C come into contact with each other. Further, by fitting the convex portion 6Be and the concave portion 6Ce, the sound emitting direction front surface 6Beb of the convex portion 6Be and the sound emitting direction rear surface 6Ceb of the concave portion 6Ce face each other in the sound emitting direction and abut against each other.
この図１１に示すスピーカ１は、クッション６の可動部６Ｂをフランジ部２１Ａの正面側の板面２１Ａａに接して配置した状態において、嵌合部６Ｅにて、各接触面である各端６Ｂａ，６Ｃａが接触する。このとき、クッション６は、可動部６Ｂの凸部６Ｂｅが固定部の凹部６Ｃｅに嵌り、凸部６Ｂｅの放音方向正面６Ｂｅｂが凹部６Ｃｅの放音方向背面６Ｃｅｂに当接することで、可動部６Ｂの端６Ｂａの、放音方向正面側への移動が規制される。このように、図１１に示すスピーカ１は、嵌合部６Ｅにより、クッション６の固定部６Ｃと可動部６Ｂとの嵌合部６Ｅにおける相互の端６Ｂａ，６Ｃａを嵌合する。この結果、図１１に示すスピーカ１は、内装材５２のカバー５２Ａとクッション６との当接状態を良好に確保してシール性能を向上できる。
In the speaker 1 shown in FIG. 11, when the movable portion 6B of the cushion 6 is arranged in contact with the plate surface 21Aa on the front side of the flange portion 21A, the ends 6Ba, 6B, 6B, 6B, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ca come into contact. At this time, the convex portion 6Be of the movable portion 6B fits into the concave portion 6Ce of the fixed portion, and the front surface 6Beb of the convex portion 6Be in the sound emitting direction contacts the rear surface 6Ceb of the concave portion 6Ce in the sound emitting direction. The movement of the end 6Ba toward the front side in the direction of sound emission is regulated. In this manner, in the speaker 1 shown in FIG. 11, the mutual ends 6Ba and 6Ca of the fixed portion 6C and the movable portion 6B of the cushion 6 at the fitting portion 6E are fitted by the fitting portion 6E. As a result, in the speaker 1 shown in FIG. 11, the contact state between the cover 52A of the interior material 52 and the cushion 6 can be maintained satisfactorily, and the sealing performance can be improved.
なお、図１１に示すスピーカ１は、クッション６の可動部６Ｂを屈曲部６Ｄで径方向外側に折り曲げて変形し、正面部材２１のフランジ部２１Ａの正面側の板面２１Ａａから遠ざけた場合、可動部６Ｂの端６Ｂａの凸部６Ｂｅが、固定部６Ｃの端６Ｃａの径方向外側部６Ｃａに引っ掛かって保持される。言い換えると、可動部６Ｂは、固定部６Ｃの端６Ｃａよりも、径方向外側に保持される。この結果、スピーカ１を設置する際には、正面部材２１のフランジ部２１Ａの貫通孔２１Ａｃを露わにした形態を維持することができる。このため、スピーカ１は、取付ねじ５の正面側に被さる可動部６Ｂを貫通孔２１Ａｃから避け、工具や取付ねじ５に対して可動部６Ｂが干渉することがなく取付ねじ５を取り付ける作業を容易に行える。さらに、スピーカ１は、取付ねじ５を取り付ける際に、工具や取付ねじ５に対して可動部６Ｂが巻き込まれて損傷する事態を防止できる。また、図１１には突起２１Ｄが記載されているが、突起２１Ｄが無い状態であっても、上述したように可動部６Ｂが貫通孔２１Ａｃに被さらない状態を保持することができるため、突起２１Ｄは無くてもよい。
The speaker 1 shown in FIG. 11 is deformed by bending the movable portion 6B of the cushion 6 radially outward at the bent portion 6D, and is moved away from the plate surface 21Aa on the front side of the flange portion 21A of the front member 21. The convex portion 6Be of the end 6Ba of the portion 6B is hooked and held by the radially outer portion 6Ca of the end 6Ca of the fixed portion 6C. In other words, the movable portion 6B is held radially outward of the end 6Ca of the fixed portion 6C. As a result, when the speaker 1 is installed, it is possible to maintain the configuration in which the through hole 21Ac of the flange portion 21A of the front member 21 is exposed. Therefore, the speaker 1 avoids the movable portion 6B covering the front side of the mounting screw 5 from the through hole 21Ac, and the movable portion 6B does not interfere with the tool or the mounting screw 5, thereby facilitating the work of mounting the mounting screw 5. can be done Furthermore, the speaker 1 can prevent a situation in which the movable portion 6B is caught in a tool or the mounting screw 5 and damaged when the mounting screw 5 is mounted. 11 shows the protrusion 21D, even if the protrusion 21D is not present, the movable portion 6B can be kept from covering the through hole 21Ac as described above. 21D may be omitted.
図１２に示すスピーカ１は、可動部６Ｂの端６Ｂａと、固定部６Ｃの端６Ｃａとが、相互に面で接触する接触面として構成されている。そして、図１２に示すスピーカ１において、嵌合部６Ｅは、各接触面である端６Ｂａ，６Ｃａにおいて、凸部６Ｂｅと凹部６Ｃｅとからなる。凸部６Ｂｅは、可動部６Ｂの端６Ｂａの放音方向背面側および径方向内側において固定部６Ｃに向かって周方向に突出して形成されている。可動部６Ｂの凸部６Ｂｅは、放音方向正面側に向く放音方向正面６Ｂｅｂを有する。また、可動部６Ｂの凸部６Ｂｅは、径方向外側に向く径方向外面６Ｂｅａを有する。凹部６Ｃｅは、固定部６Ｃの端６Ｃａの放音方向背面側および径方向内側において可動部６Ｂから遠ざかるように周方向でへこんで形成されている。固定部６Ｃの凹部６Ｃｅは、放音方向背面側に向く放音方向背面６Ｃｅｂを有する。また、固定部６Ｃの凹部６Ｃｅは、径方向内側に向く径方向内面６Ｃｅａを有する。凸部６Ｂｅと凹部６Ｃｅとは、互いに嵌め合う。凸部６Ｂｅと凹部６Ｃｅとが嵌め合うことで、可動部６Ｂの端（接触面）６Ｂａと、固定部６Ｃの端（接触面）６Ｃａとが接触する。また、凸部６Ｂｅと凹部６Ｃｅとが嵌め合うことで、凸部６Ｂｅの放音方向正面６Ｂｅｂと凹部６Ｃｅの放音方向背面６Ｃｅｂとが放音方向で相互に向き合って当接する。さらに、凸部６Ｂｅと凹部６Ｃｅとが嵌め合うことで、凸部６Ｂｅの径方向外面６Ｂｅａと凹部６Ｃｅの径方向内面６Ｃｅａとが径方向で相互に向き合って当接する。
In the speaker 1 shown in FIG. 12, the end 6Ba of the movable portion 6B and the end 6Ca of the fixed portion 6C are configured as contact surfaces that are in surface contact with each other. In the speaker 1 shown in FIG. 12, the fitting portion 6E is composed of a convex portion 6Be and a concave portion 6Ce at the ends 6Ba and 6Ca, which are contact surfaces. The convex portion 6Be is formed so as to protrude in the circumferential direction toward the fixed portion 6C from the rear side in the sound emission direction and the radially inner side of the end 6Ba of the movable portion 6B. The convex portion 6Be of the movable portion 6B has a front surface 6Beb in the sound emitting direction facing the front side in the sound emitting direction. Further, the convex portion 6Be of the movable portion 6B has a radial outer surface 6Bea facing radially outward. The concave portion 6Ce is recessed in the circumferential direction away from the movable portion 6B on the back side in the sound emitting direction and radially inward of the end 6Ca of the fixed portion 6C. The recessed portion 6Ce of the fixing portion 6C has a sound emitting direction rear surface 6Ceb facing the sound emitting direction rear surface side. Further, the recessed portion 6Ce of the fixed portion 6C has a radially inner surface 6Cea facing radially inward. The convex portion 6Be and the concave portion 6Ce are fitted to each other. By fitting the convex portion 6Be and the concave portion 6Ce, the end (contact surface) 6Ba of the movable portion 6B and the end (contact surface) 6Ca of the fixed portion 6C come into contact with each other. Further, by fitting the convex portion 6Be and the concave portion 6Ce, the sound emitting direction front surface 6Beb of the convex portion 6Be and the sound emitting direction rear surface 6Ceb of the concave portion 6Ce face each other in the sound emitting direction and abut against each other. Furthermore, by fitting the convex portion 6Be and the concave portion 6Ce together, the radial outer surface 6Bea of the convex portion 6Be and the radial inner surface 6Cea of the concave portion 6Ce come into contact with each other in the radial direction.
この図１２に示すスピーカ１は、クッション６の可動部６Ｂをフランジ部２１Ａの正面側の板面２１Ａａに接して配置した状態において、嵌合部６Ｅにて、各接触面である各端６Ｂａ，６Ｃａが接触する。このとき、クッション６は、可動部６Ｂの凸部６Ｂｅが固定部の凹部６Ｃｅに嵌り、凸部６Ｂｅの放音方向正面６Ｂｅｂが凹部６Ｃｅの放音方向背面６Ｃｅｂに当接することで、可動部６Ｂの端６Ｂａが放音方向正面側への移動を規制される。さらに、クッション６は、可動部６Ｂの凸部６Ｂｅが固定部の凹部６Ｃｅに嵌り、凸部６Ｂｅの径方向外面６Ｂｅａが凹部６Ｃｅの径方向内面６Ｃｅａに当接することで、可動部６Ｂの端６Ｂａの、径方向外側への移動が規制される。このように、図１２に示すスピーカ１は、嵌合部６Ｅにより、クッション６の固定部６Ｃと可動部６Ｂとの嵌合部６Ｅにおける相互の端６Ｂａ，６Ｃａを嵌合する。この結果、図１２に示すスピーカ１は、内装材５２のカバー５２Ａとクッション６との当接状態を良好に確保してシール性能を向上できる。
In the speaker 1 shown in FIG. 12, when the movable portion 6B of the cushion 6 is arranged in contact with the plate surface 21Aa on the front side of the flange portion 21A, the ends 6Ba, 6B, 6B, 6B, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ba, 6Ca come into contact. At this time, the convex portion 6Be of the movable portion 6B fits into the concave portion 6Ce of the fixed portion, and the front surface 6Beb of the convex portion 6Be in the sound emitting direction contacts the rear surface 6Ceb of the concave portion 6Ce in the sound emitting direction. end 6Ba is restricted from moving toward the front side in the direction of sound emission. Further, the cushion 6 is configured such that the convex portion 6Be of the movable portion 6B is fitted into the concave portion 6Ce of the fixed portion, and the radial outer surface 6Bea of the convex portion 6Be abuts the radial inner surface 6Cea of the concave portion 6Ce. is restricted from moving radially outward. In this manner, in the speaker 1 shown in FIG. 12, the mutual ends 6Ba and 6Ca of the fixed portion 6C and the movable portion 6B of the cushion 6 at the fitting portion 6E are fitted by the fitting portion 6E. As a result, in the speaker 1 shown in FIG. 12, the contact state between the cover 52A of the interior material 52 and the cushion 6 can be maintained satisfactorily, and the sealing performance can be improved.
なお、図１２に示すスピーカ１は、クッション６の可動部６Ｂを屈曲部６Ｄで径方向外側に折り曲げて変形し、正面部材２１のフランジ部２１Ａの正面側の板面２１Ａａから遠ざけた場合、可動部６Ｂの端６Ｂａの凸部６Ｂｅが、固定部６Ｃの端６Ｃａの径方向外側部分に引っ掛かって保持される。言い換えると、可動部６Ｂは、固定部６Ｃの端６Ｃａよりも、径方向外側に保持される。この結果、スピーカ１を設置する際には、正面部材２１のフランジ部２１Ａの貫通孔２１Ａｃを露わにした形態を維持することができる。このため、スピーカ１は、取付ねじ５の正面側に被さる可動部６Ｂを貫通孔２１Ａｃから避け、工具や取付ねじ５に対して可動部６Ｂが干渉することがなく取付ねじ５を取り付ける作業を容易に行える。さらに、スピーカ１は、取付ねじ５を取り付ける際に、工具や取付ねじ５に対して可動部６Ｂが巻き込まれて損傷する事態を防止できる。また、図１２には突起２１Ｄが記載されているが、突起２１Ｄが無い状態であっても、上述したように可動部６Ｂが貫通孔２１Ａｃに被さらない状態を保持することができるため、突起２１Ｄは無くてもよい。
The speaker 1 shown in FIG. 12 is deformed by bending the movable portion 6B of the cushion 6 radially outward at the bent portion 6D, and is moved away from the plate surface 21Aa on the front side of the flange portion 21A of the front member 21. The convex portion 6Be of the end 6Ba of the portion 6B is hooked and held by the radially outer portion of the end 6Ca of the fixed portion 6C. In other words, the movable portion 6B is held radially outward of the end 6Ca of the fixed portion 6C. As a result, when the speaker 1 is installed, it is possible to maintain the configuration in which the through hole 21Ac of the flange portion 21A of the front member 21 is exposed. Therefore, the speaker 1 avoids the movable portion 6B covering the front side of the mounting screw 5 from the through hole 21Ac, and the movable portion 6B does not interfere with the tool or the mounting screw 5, thereby facilitating the work of mounting the mounting screw 5. can be done Furthermore, the speaker 1 can prevent a situation in which the movable portion 6B is caught in a tool or the mounting screw 5 and damaged when the mounting screw 5 is mounted. 12 shows the projection 21D, even in the absence of the projection 21D, the movable portion 6B can be kept from covering the through hole 21Ac as described above. 21D may be omitted.
なお、図１２の実施例において、可動部６Ｂの凸部の構造は、凸部の位置については、径方向内側、放音方向背面側でなくともよく、凸部の大きさについては、クッション６の径方向の幅の半分、放音方向の厚みの半分でなくともよく、嵌合時に可動部６Ｂの凸部の構造が、径方向外側、放音方向正面側に移動しないよう、可動部６Ｂの凸部の構造と、固定部６Ｃの凹部とが嵌合していればよい。この構造においては、可動部６Ｂの凸部の構造は、クッション６の径方向外側の面と、クッション６の放音方向正面側の面よりも少なくとも一部が内側にあればよい。さらに、クッション６を屈曲部６Ｄで径方向外側に折り曲げて開いた際に貫通孔２１Ａｃが露わになるような大きさ位置で嵌合部の面内にある場合が可動部６Ｂが貫通孔２１Ａｃに被さらない状態を保持することができるため、作業性がもっともよい。
In the embodiment of FIG. 12, the structure of the convex portion of the movable portion 6B may be such that the position of the convex portion does not have to be on the inner side in the radial direction and on the back side in the direction of sound emission. It may be half the width in the radial direction of , and it may not be half the thickness in the direction of sound emission. It is sufficient that the structure of the convex portion of , and the concave portion of the fixing portion 6C are fitted. In this structure, the structure of the convex portion of the movable portion 6B may be such that at least a portion thereof is inside the radially outer surface of the cushion 6 and the front surface of the cushion 6 in the sound emitting direction. Furthermore, when the cushion 6 is bent radially outward at the bent portion 6D and opened, the through hole 21Ac is exposed when the movable portion 6B is located within the plane of the fitting portion. Workability is the best because it is possible to maintain a state where it is not covered by
なお、図１０に示すスピーカ１の変形例として、図１３に示すように、可動部６Ｂの端６Ｂａの径方向中程に凸部６Ｂｅを形成し、固定部６Ｃの端６Ｃａの径方向中程に凹部６Ｃｅを形成して、この凸部６Ｂｅと凹部６Ｃｅとを嵌め合うようにしてもよい。スピーカ１を設置する際に可動部６Ｂが貫通孔２１Ａｃに被さらないよう、可動部６Ｂの移動を規制するためには、可動部６Ｂの端６Ｂａに形成される凸部６Ｂｅおよび固定部６Ｃの端６Ｃａに形成される凹部６Ｃｅは、可動部６Ｂの径方向内側に配置されることが好ましい。
As a modified example of the speaker 1 shown in FIG. 10, as shown in FIG. A concave portion 6Ce may be formed in the groove 6B and the convex portion 6Be and the concave portion 6Ce may be fitted to each other. In order to restrict the movement of the movable portion 6B so that the movable portion 6B does not cover the through hole 21Ac when the speaker 1 is installed, the convex portion 6Be formed at the end 6Ba of the movable portion 6B and the fixed portion 6C are arranged. The recessed portion 6Ce formed in the end 6Ca is preferably arranged radially inside the movable portion 6B.
また、図１１に示すスピーカ１の変形例として、図１４に示すように、可動部６Ｂの端６Ｂａの放音方向中程に凸部６Ｂｅを形成し、固定部６Ｃの端６Ｃａの放音方向中程に凹部６Ｃｅを形成して、この凸部６Ｂｅと凹部６Ｃｅとを嵌め合うようにしてもよい。スピーカ１を設置する際に可動部６Ｂが貫通孔２１Ａｃに被さらないよう、可動部６Ｂの移動を規制するためには、可動部６Ｂの端６Ｂａに形成される凸部６Ｂｅおよび固定部６Ｃの端６Ｃａに形成される凹部６Ｃｅは、可動部６Ｂの径方向内側に配置されることが好ましい。
Further, as a modified example of the speaker 1 shown in FIG. 11, as shown in FIG. A concave portion 6Ce may be formed in the middle, and the convex portion 6Be and the concave portion 6Ce may be fitted. In order to restrict the movement of the movable portion 6B so that the movable portion 6B does not cover the through hole 21Ac when the speaker 1 is installed, the convex portion 6Be formed at the end 6Ba of the movable portion 6B and the fixed portion 6C are arranged. The recessed portion 6Ce formed in the end 6Ca is preferably arranged radially inside the movable portion 6B.
上述した実施形態のスピーカ１において、嵌合部６Ｅの形状を様々なものとすることでクッション６の径方向または放音方向への移動を規制するものとしたが、これに限定されず、可動部６Ｂと固定部６Ｃの分断部６Ａにおいて、摩擦によりクッション６の径方向または放音方向への移動を規制してもよい。より詳しくは、分断部６Ａにおいて、クッション６が周方向に長めの形状を有することで、通常状態においては可動部６Ｂの端６Ｂａと固定部６Ｃの端６Ｃａとの接触においてクッション６を周方向に押圧して摩擦を生じさせ、クッション６の径方向または放音方向への移動を規制する。スピーカ１を設置する際には、可動部６Ｂの内側面を固定部６Ｃの外側面と接触させることで、可動部６Ｂが貫通孔２１Ａｃに被さらない状態を保持し、可動部６Ｂの移動を規制する。
In the speaker 1 of the embodiment described above, the movement of the cushion 6 in the radial direction or the sound emitting direction is restricted by making the shape of the fitting portion 6E various. At the separating portion 6A between the portion 6B and the fixing portion 6C, the movement of the cushion 6 in the radial direction or the sound emitting direction may be restricted by friction. More specifically, in the divided portion 6A, the cushion 6 has a shape that is long in the circumferential direction. It presses to generate friction and restricts the movement of the cushion 6 in the radial direction or the sound emitting direction. When installing the speaker 1, by bringing the inner surface of the movable portion 6B into contact with the outer surface of the fixed portion 6C, the movable portion 6B is kept from covering the through hole 21Ac, and the movement of the movable portion 6B is prevented. regulate.
上述した実施形態のスピーカ１は、クッション６が分断部６Ａで分断された一方を可動部６Ｂとし、分断された他方を固定部６Ｃとして構成されている。このため、分断部６Ａが１か所の場合、クッション６は、振動板３１を囲むように一繋ぎに形成される。言い換えると、このときクッション６は、ひとつのクッション６１で構成される。本実施形態のスピーカ１は、図１に示すように、分断部６Ａが２か所であるため、クッション６が２つのクッション６１で構成されている。例えば、可動部を固定部とは別部材で構成する場合、１か所の分断部につき１つの可動部と２つの固定部との３つの部材に分けられる。従って、本実施形態のスピーカ１は、クッション６の部材点数を削減することもできる。
The speaker 1 of the embodiment described above is configured such that one of the cushions 6 divided by the dividing portion 6A is the movable portion 6B, and the other of the divided portions is the fixed portion 6C. Therefore, when there is only one dividing portion 6A, the cushion 6 is formed in one piece so as to surround the diaphragm 31. As shown in FIG. In other words, the cushion 6 is composed of one cushion 61 at this time. As shown in FIG. 1, the speaker 1 of the present embodiment has two divided portions 6A, so the cushion 6 is composed of two cushions 61. As shown in FIG. For example, in the case where the movable portion is configured by a member different from the fixed portion, the separated portion is divided into three members, one movable portion and two fixed portions. Therefore, the speaker 1 of this embodiment can also reduce the number of members of the cushion 6 .
