JPH01108598U - - Google Patents
Info
- Publication number
- JPH01108598U JPH01108598U JP339288U JP339288U JPH01108598U JP H01108598 U JPH01108598 U JP H01108598U JP 339288 U JP339288 U JP 339288U JP 339288 U JP339288 U JP 339288U JP H01108598 U JPH01108598 U JP H01108598U
- Authority
- JP
- Japan
- Prior art keywords
- sound emission
- emission hole
- case
- conversion unit
- acoustic conversion
- 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
- 238000006243 chemical reaction Methods 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 1
Landscapes
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Description
第１図は本考案に係る音響変換器の断面図、第
２図及び第３図は従来の音響変換器の断面図であ
る。
２…音響変換部、３…空洞、５…ケース、５１
…前面板、５２…放音孔、５３…筒部。
FIG. 1 is a sectional view of an acoustic transducer according to the present invention, and FIGS. 2 and 3 are sectional views of a conventional acoustic transducer. 2...Acoustic converter, 3...Cavity, 5...Case, 51
...Front plate, 52...Sound emission hole, 53...Cylinder part.
Claims (1)
スの後部側に音響変換部を内蔵させ、前記音響変
換部の前方の前記ケース内部を前記放音孔に連通
する空洞とした音響変換器において、前記ケース
は金属薄板で構成し、前記前面板に対し前記空洞
側に突出するように絞り加工を施して前記放音孔
を構成する筒部を形成したことを特徴とする音響
変換器。 An acoustic conversion unit is built into the rear side of a case formed in a cylindrical shape with a sound emission hole in the front plate, and the inside of the case in front of the acoustic conversion unit is formed as a cavity communicating with the sound emission hole. In the transducer, the case is made of a thin metal plate, and the front plate is drawn so as to protrude toward the cavity to form a cylindrical portion that constitutes the sound emission hole. vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP339288U JPH01108598U (en) | 1988-01-14 | 1988-01-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP339288U JPH01108598U (en) | 1988-01-14 | 1988-01-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01108598U true JPH01108598U (en) | 1989-07-21 |
Family
ID=31204986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP339288U Pending JPH01108598U (en) | 1988-01-14 | 1988-01-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01108598U (en) |
-
1988
- 1988-01-14 JP JP339288U patent/JPH01108598U/ja active Pending