JPS643273Y2 - - Google Patents
Info
- Publication number
- JPS643273Y2 JPS643273Y2 JP5130183U JP5130183U JPS643273Y2 JP S643273 Y2 JPS643273 Y2 JP S643273Y2 JP 5130183 U JP5130183 U JP 5130183U JP 5130183 U JP5130183 U JP 5130183U JP S643273 Y2 JPS643273 Y2 JP S643273Y2
- Authority
- JP
- Japan
- Prior art keywords
- speaker
- protection plate
- diaphragm
- small
- equalizer
- 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
Links
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Description
【考案の詳細な説明】
本考案は外観的にも、性能的にも優れ、且つ安
価なスピーカ用前面保護板の構造に関する。[Detailed Description of the Invention] The present invention relates to a structure of a front protection plate for a speaker that is excellent in appearance and performance and is inexpensive.
従来から平板型スピーカ或はドームスピーカ等
において、振動板の分割共振のために周波数特性
を劣化するのを防止するために第１図に示す如く
振動板２前方に、当該振動板２の一部を覆うよう
にイコライザ１を設置したものが存在する。この
ようなイコライザの構造は種々あるがいずれもイ
コライザ専用の別部品と組立工費が必要であり、
製造コストを上昇させていた。 Conventionally, in flat-plate speakers, dome speakers, etc., a part of the diaphragm 2 is placed in front of the diaphragm 2, as shown in FIG. There is one in which the equalizer 1 is installed so as to cover the There are various structures for such equalizers, but all of them require separate parts and assembly costs for the equalizer.
It was increasing manufacturing costs.
本考案は従来例のイコライザの欠点を無くし、
製造コストを下げると同時に性能的にも外観的に
も優れたスピーカを提供する前面保護板の構造に
関するもので、第２図以下で詳述する。 This invention eliminates the drawbacks of conventional equalizers,
This invention relates to the structure of a front protection plate that reduces manufacturing costs while providing a speaker with excellent performance and appearance, and will be explained in detail below in FIG.
第２図において３は本考案のスピーカの前面保
護板で、放音のために小貫通孔５が多数穿設され
ている部分Ａと、従来のイコライザとしての作用
を有する様に前記小貫通孔と外観的に相似した未
貫通の小凹孔４が多数形成されている部分Ｂとか
らなる。この部分Ｂは振動板の直前方に位置し、
面積は振動板面積の約５％〜60％位の範囲が適当
である。この小凹孔４の形成方法としては例えば
金属薄板をプレス成型により外形と同時に小貫通
孔を穿設するときに、第３図ｂの如く完全に貫通
させずに半抜きのまま残すようにする。或はプラ
スチツクで所望の形成に成形してもよい。 In Fig. 2, numeral 3 denotes the front protection plate of the speaker of the present invention, which includes a portion A in which a large number of small through holes 5 are bored for sound emission, and a portion A in which the small through holes 5 are formed to function as a conventional equalizer. and a portion B in which a large number of non-penetrating small recesses 4 similar in appearance are formed. This part B is located just in front of the diaphragm,
The appropriate area is approximately 5% to 60% of the area of the diaphragm. The method for forming the small recessed hole 4 is, for example, when forming a small through hole at the same time as the outer shape of a thin metal plate by press molding, leave it half-opened without completely penetrating it, as shown in Figure 3b. . Alternatively, it may be molded from plastic into the desired configuration.
第４図に本考案実施例として、58mm×27mm平板
振動板と部分Ｂの寸法が40mm×14mmである前面保
護板を有する平板スピーカの周波数特性を示す。
４１は本考案記載の前面保護板を有する場合の特
性で、４２は当該保護板の無い場合の特性であ
る。約2000Hz〜10000Hzの帯域で当該保護板のイ
コライザ効果が認められる。 FIG. 4 shows, as an embodiment of the present invention, the frequency characteristics of a flat plate speaker having a 58 mm x 27 mm flat plate diaphragm and a front protection plate whose portion B has dimensions of 40 mm x 14 mm.
41 is the characteristic when the front protection plate described in the present invention is provided, and 42 is the characteristic when the protection plate is not provided. The equalizer effect of the protection plate is observed in the band of about 2000Hz to 10000Hz.
以上の如く本考案による前面保護板は小貫通孔
の無い部分Ｂがイコライザとしての作用を有する
ために別にイコライザ専用部分を必要とせずに周
波数特性を改善し、更に１工程で製作可能なこと
と相俟つてスピーカ製造コストを低下させること
が可能であるだけでなく、外観的にも従来のパン
チングネツトに比して遜色の無い優れたスピーカ
を提供することができるものである。 As described above, the front protection plate according to the present invention improves frequency characteristics without requiring a separate dedicated equalizer part because the part B without small through holes functions as an equalizer, and can be manufactured in one process. Together with this, it is possible not only to reduce the manufacturing cost of the speaker, but also to provide an excellent speaker that is comparable in appearance to conventional punching nets.
第１図は従来のイコライザを備えたスピーカ
（前面飾り枠は省略）の斜視図、第２図は本考案
スピーカの一部切欠斜視図、第３図ａ，ｂは本考
案スピーカの前面保護板のそれぞれ部分Ａ、およ
び部分Ｂの一部拡大断面図、第４図は本考案スピ
ーカの周波数特性図である。
２は振動板、３は前面保護板、４は小凹孔、５
は小貫通孔である。
Figure 1 is a perspective view of a conventional speaker equipped with an equalizer (the front decorative frame is omitted), Figure 2 is a partially cutaway perspective view of the speaker of the present invention, and Figures 3 a and b are the front protection plate of the speaker of the present invention. FIG. 4 is a partially enlarged sectional view of portions A and B, respectively, and FIG. 4 is a frequency characteristic diagram of the speaker of the present invention. 2 is a diaphragm, 3 is a front protection plate, 4 is a small recessed hole, 5
is a small through hole.
Claims (1)
の面積の５〜60％の範囲に未貫通の小凹孔４が多
数形成されている部分Ｂと、当該部分Ｂの残余の
範囲で小貫通孔５が多数穿設されている部分Ａと
からなる全面保護板３を有することを特徴とする
スピーカ。 The diaphragm 2 is located in front of the diaphragm.
A part B in which a large number of unpierced small recesses 4 are formed in a range of 5 to 60% of the area of the part B, and a part A in which a large number of small through holes 5 are formed in the remaining area of the part B. A speaker characterized by having a full-face protection plate 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5130183U JPS59157381U (en) | 1983-04-05 | 1983-04-05 | speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5130183U JPS59157381U (en) | 1983-04-05 | 1983-04-05 | speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59157381U JPS59157381U (en) | 1984-10-22 |
| JPS643273Y2 true JPS643273Y2 (en) | 1989-01-27 |
Family
ID=30181716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5130183U Granted JPS59157381U (en) | 1983-04-05 | 1983-04-05 | speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59157381U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59161792U (en) * | 1983-04-12 | 1984-10-30 | オンキヨー株式会社 | speaker system |
-
1983
- 1983-04-05 JP JP5130183U patent/JPS59157381U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59157381U (en) | 1984-10-22 |
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