JPS5857959B2 - Manufacturing method of edge for speaker diaphragm - Google Patents
Manufacturing method of edge for speaker diaphragmInfo
- Publication number
- JPS5857959B2 JPS5857959B2 JP7972079A JP7972079A JPS5857959B2 JP S5857959 B2 JPS5857959 B2 JP S5857959B2 JP 7972079 A JP7972079 A JP 7972079A JP 7972079 A JP7972079 A JP 7972079A JP S5857959 B2 JPS5857959 B2 JP S5857959B2
- Authority
- JP
- Japan
- Prior art keywords
- edge
- manufacturing
- speaker diaphragm
- diaphragm
- foam
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
- H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2231/00—Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
- H04R2231/003—Manufacturing aspects of the outer suspension of loudspeaker or microphone diaphragms or of their connecting aspects to said diaphragms
Description
【発明の詳細な説明】 本発明はスピーカ振動板用エツジの製造方法に関する。[Detailed description of the invention] The present invention relates to a method of manufacturing an edge for a speaker diaphragm.
スピーカ振動板用のエツジとしては、特に、共振を防ぐ
ために内部損失の大きい材料で形成されることが必要で
ある。In particular, the edges for the speaker diaphragm need to be made of a material with high internal loss in order to prevent resonance.
内部損失の大きい材料には、例えはプラスチック、或い
はプラスチック・フオームを用いてエツジを形成するも
のであるが、このうち、プラスチック・フオームを用い
てエツジを形成するには第１図に示すものがあった。For materials with large internal losses, for example, plastic or plastic foam is used to form edges. Among these, the edge is formed using plastic foam as shown in Figure 1. there were.
即ち、プラスチック・フオームとして例えはポリウレタ
ン系・フオームを用い、このポリウレタン系・フオーム
の生地材Ａから、残余部Ｂ１． Ｂ２を残して所望のエ
ツジの内径及び外径を有した環状のエツジ構成片Ｃを裁
断し、その後、前記エツジ構成片Ｃを加熱処理するとと
もに、加圧処理することによりエツジを成型していた。That is, for example, polyurethane foam is used as the plastic foam, and from the polyurethane foam fabric material A, the remaining portion B1. An annular edge component C having the desired inner and outer diameters of the edge was cut, leaving B2, and then the edge component C was heat treated and pressure treated to form an edge. .
しかし、この方法だと生地材Ａの全体の面積の約１１５
程度の面積しかエツジを成型するためのエツジ構成片Ｃ
をとることができず、歩留まりとしての残余片Ｂ１．Ｂ
２が無駄となっていた。However, with this method, approximately 115% of the total area of fabric material A
Edge component C for forming an edge with only a small area
However, the remaining piece B1. B
2 was wasted.
本発明は上述の如き点に鑑みてなされたものであり、そ
の目的とするところは、従来、例えばポリウレタン系・
フオーム等の熱可塑性プラスチック・フオームの歩留ま
りを有効に利用してエツジを成型することができるスピ
ーカ振動板用エツジの製造方法を提供するにある。The present invention has been made in view of the above-mentioned points, and its purpose is to
To provide a method for manufacturing an edge for a speaker diaphragm, in which the edge can be formed by effectively utilizing the yield of thermoplastic foam such as foam.
以下、本発明を第２図に従って使用する装置とともに説
明する。The invention will now be explained in conjunction with the apparatus used according to FIG.
第２図は、本発明を実施する場合に用いる装置であり、
１はエツジ成形下型、２はエツジ成形下型１に衝合すべ
きエツジ成形上型であり、このエツジ成形下型１とエツ
ジ成形上型２とはエツジ部の両端にそれぞれフレームへ
の取付部とコーン紙等の振動板を固定する取付部とを一
体に形成すべき所望形状をしている。FIG. 2 shows an apparatus used when carrying out the present invention,
Reference numeral 1 indicates a lower edge forming die, and 2 indicates an upper edge forming die to be abutted against the lower edge forming die 1. The lower edge forming die 1 and the upper edge forming die 2 are attached to the frame at both ends of the edge portion, respectively. It has a desired shape in which the part and the mounting part for fixing the diaphragm, such as paper cone, are integrally formed.
３はポリウレタン系・フオーム等、熱可塑性プラスチッ
ク・フオームの小塊で、この小塊３は従来、エツジを成
型する場合に生ずる残余片等の歩留まりを細かく裁断す
ることにより容易に得られる。Numeral 3 is a small lump of thermoplastic foam such as polyurethane foam, and this small lump 3 can be easily obtained by cutting into small pieces the yield of residual pieces etc. that are conventionally generated when molding an edge.
そして、エツジを製造するには、ます、第１工程として
、下型１にエツジを成型するのに相当する量のポリウレ
タン系・フオームの小塊３を収容し、第２工程として、
上型２と下型１とを衝合した後に加熱及び加圧処理する
ことによりエツジは成型される。To manufacture the edge, first, as a first step, a small amount of polyurethane foam 3 corresponding to the amount of molding the edge is placed in the lower mold 1, and as a second step,
After the upper mold 2 and the lower mold 1 are brought into contact with each other, the edges are formed by applying heat and pressure treatment.
上記の場合の小塊３の大きさは１ｍ４〜２寵程蜜の大き
さのものを用い、加熱温妾は１９０℃程度で、しかも加
圧処理する場合の圧力及び加圧時間は約３ｋｇ／ｉ；
３秒程妾である。In the above case, the size of the small lumps 3 is about 1 m4 to 2 cubic meters, the heating temperature is about 190°C, and the pressure and pressurizing time are about 3 kg/ i;
She was a concubine for about 3 seconds.
この際、エツジを成型するのと同時にエツジにコーン紙
等の振動板を一体に固定する。At this time, a diaphragm made of paper cone or the like is integrally fixed to the edge at the same time as the edge is molded.
この場合はエツジ成型後に振動板４をエツジに接着剤等
を用いて接着する手間が省けるとともに軽量でスピーカ
とじての能率を高くできる。In this case, the labor of adhering the diaphragm 4 to the edges using an adhesive or the like after edge molding can be saved, and the speaker can be made lightweight and highly efficient.
上記の工程を経て、ポリウレタン系・フオーム等熱可塑
性プラスチック・フオームの小塊３からエツジを成型で
きる。Through the above steps, an edge can be molded from the small lump 3 of thermoplastic foam such as polyurethane foam.
従って、本発明によれは、従来、生地材からエツジ構成
片を裁断した後に、歩留まりが生じて無駄となっていた
のに比して、この歩留まりを廃棄処分等することなく、
有効に利用してエツジを成型することができる。Therefore, according to the present invention, in contrast to the conventional method in which a yield was generated and wasted after cutting an edge component piece from a fabric material, this yield is not disposed of or otherwise disposed of.
It can be used effectively to form edges.
しかも、本発明は、工程及び使用する装置が簡単である
等の効果がある。Moreover, the present invention has advantages such as simple steps and equipment used.
第１図は従来のエツジ製造方法において生地材からエツ
ジ構成片を切抜いた状態の正面図、第２図は振動板をエ
ツジとともに成型する場合の本発明の一実施例を示す説
明図の断面図である。
１・・・・・・エツジ成形下型、２・・・・・・エツジ
成形上型、３・・・・・・熱可塑性プラスチックフオー
ムの小塊、４・・・・・・振動板。Fig. 1 is a front view of an edge component piece cut out from a fabric material in a conventional edge manufacturing method, and Fig. 2 is a cross-sectional view of an explanatory diagram showing an embodiment of the present invention in which a diaphragm is molded together with an edge. It is. 1... Edge molding lower mold, 2... Edge molding upper mold, 3... Small lump of thermoplastic plastic foam, 4... Vibration plate.
Claims (1)
容し、上型と上記下型とを用いて加熱処理および加圧処
理することにより、エツジを成型すると同時に振動板を
一体に成型することを特徴としたスピーカ振動板用エツ
ジの製造方法。1. A small lump of thermoplastic foam is housed in a lower mold, and the upper mold and the lower mold are used to heat and pressurize it, thereby molding the edge and simultaneously molding the diaphragm in one piece. A manufacturing method for a distinctive edge for a speaker diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7972079A JPS5857959B2 (en) | 1979-06-26 | 1979-06-26 | Manufacturing method of edge for speaker diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7972079A JPS5857959B2 (en) | 1979-06-26 | 1979-06-26 | Manufacturing method of edge for speaker diaphragm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS564998A JPS564998A (en) | 1981-01-19 |
| JPS5857959B2 true JPS5857959B2 (en) | 1983-12-22 |
Family
ID=13698027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7972079A Expired JPS5857959B2 (en) | 1979-06-26 | 1979-06-26 | Manufacturing method of edge for speaker diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5857959B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63234151A (en) * | 1987-03-23 | 1988-09-29 | Chubu Electric Power Co Inc | Fault detecting device for overhead wire |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57133195U (en) * | 1981-02-12 | 1982-08-19 | ||
| JP3491087B2 (en) * | 2000-10-26 | 2004-01-26 | 松下電器産業株式会社 | Speaker edge, foam molding method thereof, foam molding apparatus, speaker edge foam molding system, and speaker using the speaker edge |
-
1979
- 1979-06-26 JP JP7972079A patent/JPS5857959B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63234151A (en) * | 1987-03-23 | 1988-09-29 | Chubu Electric Power Co Inc | Fault detecting device for overhead wire |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS564998A (en) | 1981-01-19 |
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