JPS6271989U - - Google Patents
Info
- Publication number
- JPS6271989U JPS6271989U JP16214085U JP16214085U JPS6271989U JP S6271989 U JPS6271989 U JP S6271989U JP 16214085 U JP16214085 U JP 16214085U JP 16214085 U JP16214085 U JP 16214085U JP S6271989 U JPS6271989 U JP S6271989U
- Authority
- JP
- Japan
- Prior art keywords
- duct hole
- air chamber
- steps
- view
- opening
- 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.)
- Pending
Links
Landscapes
- Headphones And Earphones (AREA)
Description
第１図乃至第８図は本考案に係るイヤーフオン
の第１及び第２の実施例を示すものであつて、第
１図は一部分を断面した側面図、第２図は要部の
断面側面図、第３図は蓋体の正面図、第４図及び
第５図は断面図、第６図は要部の断面図、第７図
は断面側面図、第８図ａ，ｂ，ｃはダクト孔の開
口状態を示す要部平面図である。第９図は従来の
イヤーフオンを示す断面側面図である。
Ａ：イヤーフオン、３：気室部、７，１２：ダ
クト、７ｃ，１２ｃ：ダクト孔、８，１３：蓋体
。
1 to 8 show first and second embodiments of earphones according to the present invention, in which FIG. 1 is a partially sectional side view, and FIG. 2 is a sectional side view of main parts. , Figure 3 is a front view of the lid body, Figures 4 and 5 are cross-sectional views, Figure 6 is a cross-sectional view of the main part, Figure 7 is a cross-sectional side view, and Figures 8 a, b, and c are ducts. FIG. 3 is a plan view of a main part showing an open state of a hole. FIG. 9 is a cross-sectional side view showing a conventional earphone. A: earphone, 3: air chamber, 7, 12: duct, 7c, 12c: duct hole, 8, 13: lid body.
Claims (1)
と連通するダクト孔と、ダクト孔の開口面積をス
テツプ状に可変するためのダクト孔開閉手段とを
備え、音響特性をステツプ可変可能に構成したこ
とを特徴とするイヤーフオン。 Equipped with an air chamber formed on the back of the diaphragm, a duct hole that communicates with the air chamber, and a duct hole opening/closing means for changing the opening area of the duct hole in steps, making it possible to change the acoustic characteristics in steps. An earphone characterized by having the following configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16214085U JPS6271989U (en) | 1985-10-24 | 1985-10-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16214085U JPS6271989U (en) | 1985-10-24 | 1985-10-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6271989U true JPS6271989U (en) | 1987-05-08 |
Family
ID=31089118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16214085U Pending JPS6271989U (en) | 1985-10-24 | 1985-10-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6271989U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS545425B2 (en) * | 1973-11-07 | 1979-03-16 | ||
| JPS5977795A (en) * | 1982-10-26 | 1984-05-04 | Aiwa Co Ltd | Open air type headphones |
-
1985
- 1985-10-24 JP JP16214085U patent/JPS6271989U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS545425B2 (en) * | 1973-11-07 | 1979-03-16 | ||
| JPS5977795A (en) * | 1982-10-26 | 1984-05-04 | Aiwa Co Ltd | Open air type headphones |