JPH0638548Y2 - Speaker-cabinet - Google Patents
Speaker-cabinetInfo
- Publication number
- JPH0638548Y2 JPH0638548Y2 JP5820285U JP5820285U JPH0638548Y2 JP H0638548 Y2 JPH0638548 Y2 JP H0638548Y2 JP 5820285 U JP5820285 U JP 5820285U JP 5820285 U JP5820285 U JP 5820285U JP H0638548 Y2 JPH0638548 Y2 JP H0638548Y2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- slit
- cabinet
- baffle plate
- speaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
Description
【考案の詳細な説明】 [産業上の利用分野] 本考案はスピーカーキヤビネツトに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a speaker cabinet.
[従来の技術] 従来より、キヤビネツトに補強桟や補強棒を取り付け
て、箱自体の機械的強度を大きくするとともに、バツフ
ル板、側板および裏板の板振動を分散、制動する方法が
実用化されているが、中でも、バツフル板の板振動を減
衰させることを目的としたものとして、たとえば、実開
昭58-147376号公報がある。[Prior Art] Conventionally, a method has been put to practical use in which a reinforcing bar or a reinforcing bar is attached to a cabinet to increase the mechanical strength of the box itself and to disperse and damp the vibrations of the baffle plate, the side plate, and the back plate. However, among them, there is, for example, Japanese Utility Model Application Laid-Open No. 58-147376 for the purpose of damping the plate vibration of the baffle plate.
同公報に記載のものは、バツフル板のスピーカーユニツ
トの周囲に板厚方向の細幅の溝を設け、この溝にゴムな
どの粘弾性材料を充填した構造を有する。The device described in the publication has a structure in which a narrow groove in the plate thickness direction is provided around a speaker unit of a baffle plate and the groove is filled with a viscoelastic material such as rubber.
[考案が解決しようとする問題点] バツフル板の板振動の一要因はスピーカーユニツトの反
作用によるものであるが、従来構造はバツフル板に溝を
設ける構造であるので、バツフル板の機械的強度が小さ
くなる。したがつて、音響源(スピーカーユニツト)の
基準としてのバツフル板が振動して音響を放射しやすく
なるので、スピーカーユニツトからの音響にバツフル板
からの音響が重畳され、また、システムのレスポンス特
性が悪化し、過渡特性や歪特性の悪化につながる問題点
があつた。[Problems to be solved by the invention] One of the factors causing the plate vibration of the baffle plate is the reaction of the speaker unit. However, since the conventional structure has a groove in the baffle plate, the mechanical strength of the baffle plate is low. Get smaller. Therefore, the baffle plate as the reference of the sound source (speaker unit) vibrates and easily emits sound, so that the sound from the speaker unit is superimposed on the sound from the speaker unit and the response characteristic of the system is However, there is a problem in that it deteriorates the transient characteristics and distortion characteristics.
考案者らは、このような問題点を解決することを目的と
して、たとえば、次のような構造を提案した。(実願昭
60-001966号) 第3図において説明すると、キヤビネツトのバツフル板
(1)と各側板(2)との接合部に、バツフル板(1)
の板面とほぼ平行であつて、かつ、その幅と同一または
わずかに短いスリツト状孔(4)を設けた構造である。The inventors have proposed, for example, the following structure in order to solve such a problem. (Actual application
Referring to FIG. 3, the baffle plate (1) is attached to the joint between the baffle plate (1) of the cabinet and each side plate (2).
The slit-shaped hole (4) is substantially parallel to the plate surface and has the same or slightly shorter width than the slit-shaped hole.
このような改良された構造は、スピーカーユニツト
(5)からバツフル板(1)を通つて側板(2)、裏板
(3)に伝搬する振動が、スリツト状孔(4)によつて
遮断され、側板(2)、裏板(3)の板振動が低減され
るものである。With such an improved structure, vibrations propagated from the speaker unit (5) through the baffle plate (1) to the side plate (2) and the back plate (3) are blocked by the slit holes (4). The plate vibrations of the side plate (2) and the back plate (3) are reduced.
しかしながら、このような改良された構造は、スリツト
状孔(4)を介して対向するバツフル板(1)、各側板
(2)の端部は自由端となり、また、キヤビネツトの機
械的強度も充分なものではなく、この点においても改良
の余地があつた。However, in such an improved structure, the ends of the baffle plate (1) and the side plates (2) facing each other through the slit-shaped holes (4) are free ends, and the mechanical strength of the cabinet is sufficient. However, there is room for improvement in this respect as well.
本考案はこのような問題点を解決することを目的とする
ものである。The present invention aims to solve such problems.
[問題点を解決するための手段] 本考案は、バツフル板、天板、左右側板、底板および裏
板からなるスピーカーキヤビネツトにおいて、バツフル
板の底板と接合する部分を除く周囲にコ形状のスリツト
状孔を設け、バツフル板のスリツト状孔を介して上記左
右側板に対向する部分に第1、第2の補強板をそれぞれ
取り付け、この第1、第2の補強板の下端部を上記底板
にそれぞれ取り付けるとともに、上記スリツト状孔に粘
弾性材料を介挿したことを特徴とするものである。[Means for Solving Problems] The present invention is a speaker cabinet composed of a baffle plate, a top plate, left and right side plates, a bottom plate and a back plate, and has a U-shaped periphery except for a portion joined to the bottom plate of the baffle plate. A slit-like hole is provided, and first and second reinforcing plates are attached to portions of the baffle plate that face the left and right side plates through the slit-like hole, and the lower ends of the first and second reinforcing plates are attached to the bottom plate. And a viscoelastic material is inserted in the slit-shaped hole.
[作用] その結果、バツフル板と底板とが第1、第2の補強板に
よつて強固に固定され、全体としてキヤビネツトの機械
的強度が大きくなるとともに、振動源としてのスピーカ
ーユニツトからバツフル板を通つて天板、左右側板に伝
搬する振動は、バツフル板のコ形状のスリツト状孔によ
つて遮断され、かつ、スリツト状孔に介挿された粘弾性
材料によつて吸収される。また、粘弾性材料はスリツト
状孔を密閉し、キヤビネツトを気密状態に保持する。[Operation] As a result, the baffle plate and the bottom plate are firmly fixed by the first and second reinforcing plates, the mechanical strength of the cabinet as a whole is increased, and the baffle plate is removed from the speaker unit as the vibration source. Vibrations that pass through to the top plate and the left and right side plates are blocked by the U-shaped slit-shaped hole of the baffle plate, and are absorbed by the viscoelastic material inserted in the slit-shaped hole. The viscoelastic material also seals the slit-like holes and keeps the cabinet airtight.
また、バツフル板の下部から底板に伝搬する振動エネル
ギーは、スピーカーキヤビネツトを載置する床や置台に
吸収される。Further, the vibration energy propagating from the lower part of the baffle plate to the bottom plate is absorbed by the floor or the table on which the speaker cabinet is mounted.
[実施例] 第1図において説明する。[Embodiment] This will be described with reference to FIG.
バツフル板(1)の底板(8)と接合する部分を除く周
囲に、すなわち、天板(6)、左右側板(7a)、(7b)
との接合部に全体形状コ形状のスリツト状孔(9)を設
ける。そして、バツフル板(1)の上記スリツト状孔
(9)を介して上記左右側板(7a)、(7b)に対向する
部分に第1、第2の補強板(10)、(11)をそれぞれ取
り付け、この第1、第2の補強板(10)、(11)の下端
部を上記底板(8)にそれぞれ取り付ける。Around the periphery of the baffle plate (1) excluding the portion joined to the bottom plate (8), that is, the top plate (6), left and right side plates (7a), (7b)
A slit-shaped hole (9) having an overall shape of U-shape is provided at the joint portion with. Then, the first and second reinforcing plates (10) and (11) are respectively provided at the portions facing the left and right side plates (7a) and (7b) through the slit-shaped holes (9) of the baffle plate (1). The lower end portions of the first and second reinforcing plates (10) and (11) are attached to the bottom plate (8).
たとえば、図示のような矩形の第1、第2の補強板(1
0)、(11)にあつては、直交する垂直、水平端面部が
バツフル板(1)、底板(8)にそれぞれ取り付けられ
る。For example, the rectangular first and second reinforcing plates (1
In the cases (0) and (11), the vertical and horizontal end surface portions orthogonal to each other are attached to the baffle plate (1) and the bottom plate (8), respectively.
そして、スリツト状孔(9)および第1、第2の補強板
(10)、(11)とこれに対向する左右側板(7a)、(7
b)との間にネオプレンゴム等の粘弾性材料(12)を介
挿する。The slit-shaped hole (9), the first and second reinforcing plates (10) and (11), and the left and right side plates (7a) and (7) facing them.
Insert a viscoelastic material (12) such as neoprene rubber between it and b).
次に、本実施例において、キヤビネツトの各部の寸法
(単位はmm)を第2図のように定め、 外径 280W×466H×232D t=12、l1=1、l2=3 粘弾性材料(12)としてネオプレンゴム(硬度40度、厚
さ3mm)を使用したキヤビネツトにおいて、バツフル板
(1)の中央にスピーカーユニツトと同等構造の加振器
(13)を取り付け、この加振器(13)によりインパルス
の振動を与えて、各部 P1:加振器のフレーム P2:同フレームの近傍 P3:側板の中心 P4:裏板の中心 における板振動応答波形を測定した。Next, in this embodiment, the dimensions (unit: mm) of each part of the cabinet are determined as shown in FIG. 2, and the outer diameter is 280 W × 466 H × 232 D t = 12, l1 = 1, l2 = 3. In a cabinet using neoprene rubber (hardness 40 degrees, thickness 3 mm) as a), a vibrator (13) having the same structure as the speaker unit is attached to the center of the baffle plate (1). Impulse vibration was applied to measure the plate vibration response waveform at each part P 1 : Frame of the shaker P 2 : Near the frame P 3 : Center of side plate P 4 : Center of back plate.
第4図は従来例(スリツト状溝なし)、第5図は改良さ
れた構造(スリツト状溝あり)、第6図は本実施例の測
定結果を示す。FIG. 4 shows a conventional example (without slit-like grooves), FIG. 5 shows an improved structure (with slit-like grooves), and FIG. 6 shows measurement results of this embodiment.
[考案の効果] 本考案は、(イ)バツフル板と底板とが第1、第2の補
強板によつて強固に固定され、全体としてキヤビネツト
の機械的強度が大きくなるとともに、(ロ)振動源とし
てのスピーカーユニツトからバツフル板を通つて天板、
左右側板に伝搬する振動は、バツフル板のコ形状のスリ
ツト状孔によつて遮断され、かつ、粘弾性材料によつて
吸収される。(ハ)また、バツフル板の下部から底板に
伝搬する振動エネルギーは、スピーカーキヤビネツトを
載置する床や置台に吸収される。(ニ)その結果、キヤ
ビネツトの左右側板および裏板の板振動が著しく低減さ
れ、板振動に伴う諸特性の悪化が改善される。[Advantages of the Invention] The present invention has the following advantages: (a) The baffle plate and the bottom plate are firmly fixed by the first and second reinforcing plates, so that the mechanical strength of the cabinet as a whole is increased, and (b) the vibration. From the speaker unit as a source, through the baffle plate, the top plate,
The vibration propagating to the left and right side plates is blocked by the U-shaped slit-shaped hole of the baffle plate and absorbed by the viscoelastic material. (C) Further, the vibration energy propagating from the lower part of the baffle plate to the bottom plate is absorbed by the floor or the table on which the speaker cabinet is mounted. (D) As a result, the plate vibrations of the left and right side plates and the back plate of the cabinet are significantly reduced, and the deterioration of various characteristics due to the plate vibration is improved.
第1図は本考案のスピーカーキヤビネツト(一実施例)
の構造を示めす図、第2図は同、各部の寸法を示めす
図、第3図は改良されたスピーカーキヤビネツトの構造
を示めす図、第4図は従来のスピーカーキヤビネツトの
インパルスに対する各部の振動応答波形図、第5図は改
良されたスピーカーキヤビネツトのインパルスに対する
各部の振動応答波形図、第6図は本考案のスピーカーキ
ヤビネツト(一実施例)のインパルスに対する各部の振
動応答波形図である。 (1)……バツフル板、(3)……裏板、(5)……ス
ピーカーユニツト、(6)……天板、(7a)、(7b)…
…側板、(8)……底板、(9)……スリツト状孔、
(10)、(11)……第1、第2の補強板、(12)……粘
弾性材料。FIG. 1 is a speaker cabinet of the present invention (one embodiment).
Fig. 2 is a diagram showing the dimensions of the respective parts, Fig. 3 is a diagram showing the structure of the improved speaker cabinet, and Fig. 4 is a diagram showing the structure of a conventional speaker cabinet. FIG. 5 is a vibration response waveform diagram of each part for an impulse, FIG. 5 is a vibration response waveform diagram of each part for an impulse of an improved speaker cabinet, and FIG. 6 is each part for an impulse of a speaker cabinet (one embodiment) of the present invention. FIG. 5 is a vibration response waveform chart of FIG. (1) …… Baffle board, (3) …… Back board, (5) …… Speaker unit, (6) …… Top board, (7a), (7b)…
… Side plate, (8) …… Bottom plate, (9) …… Slit-like hole,
(10), (11) ... First and second reinforcing plates, (12) ... Viscoelastic material.
Claims (1)
(7a)、(7b)、底板(8)および裏板(3)からなる
スーカーキヤビネツトにおいて、上記バツフル板(1)
の上記底板(8)と接合する部分を除く周囲にコ形状の
スリツト状孔(9)を設け、上記バツフル板(1)の裏
面の上記スリツト状孔(9)の内側であつて上記左右側
板(7a)、(7b)に対向する部分に第1、第2の補強板
(10)、(11)をそれぞれ取り付け、かつ、当該第1、
第2の補強板(10)、(11)の下端部を上記底板(8)
にそれぞれ取り付けるとともに、上記スリツト状孔
(9)に粘弾性材料(12)を介挿したことを特徴とする
スピーカーキヤビネツト。1. A soaker cabinet comprising a baffle plate (1), a top plate (6), left and right side plates (7a), (7b), a bottom plate (8) and a back plate (3). )
U-shaped slit-like holes (9) are provided in the periphery except the portion to be joined with the bottom plate (8), and inside the slit-like holes (9) on the back surface of the baffle plate (1) are the left and right side plates. First and second reinforcing plates (10) and (11) are attached to the portions facing (7a) and (7b), respectively, and
The lower end portions of the second reinforcing plates (10) and (11) are connected to the bottom plate (8).
The speaker cabinet is characterized in that the viscoelastic material (12) is inserted into the slit-shaped hole (9) while being attached to each of the speaker cabinets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5820285U JPH0638548Y2 (en) | 1985-04-17 | 1985-04-17 | Speaker-cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5820285U JPH0638548Y2 (en) | 1985-04-17 | 1985-04-17 | Speaker-cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61174282U JPS61174282U (en) | 1986-10-30 |
| JPH0638548Y2 true JPH0638548Y2 (en) | 1994-10-05 |
Family
ID=30583486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5820285U Expired - Lifetime JPH0638548Y2 (en) | 1985-04-17 | 1985-04-17 | Speaker-cabinet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0638548Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5309713B2 (en) * | 2008-06-19 | 2013-10-09 | ヤマハ株式会社 | Speaker |
| CN111037222B (en) * | 2019-12-16 | 2021-10-15 | 西安航天发动机有限公司 | A processing method of a six-blade intersecting scoring tool |
-
1985
- 1985-04-17 JP JP5820285U patent/JPH0638548Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61174282U (en) | 1986-10-30 |
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