JPH01133848U - - Google Patents
Info
- Publication number
- JPH01133848U JPH01133848U JP3001988U JP3001988U JPH01133848U JP H01133848 U JPH01133848 U JP H01133848U JP 3001988 U JP3001988 U JP 3001988U JP 3001988 U JP3001988 U JP 3001988U JP H01133848 U JPH01133848 U JP H01133848U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric vibrator
- metal plate
- section
- handset
- ring
- 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
- 239000002184 metal Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
- Telephone Set Structure (AREA)
Description
第１図は本考案の一実施例による電話用送受話
器の構造を示す断面図、第２図は本考案の一実施
例による電話用送受話器の受話器部分の拡大断面
図、第３図は従来の電話用送受話器の構造を示す
断面図である。
６……上ケース、７……下ケース、８……入出
力コネクタ、９……送話器、１０……プリアンプ
、１１……受話器、１２……リング状突起、１３
……段部、１４……固定部、１５……放音孔、１
６……セラミツク圧電体、１７……金属板、１８
……背気室板、１９……リード線、２０……切欠
部、２１……小孔、２２……音響抵抗材、２３…
…フレーム、２４……弾性接着剤、２５……固定
金具、２６……ネジ、２７……ネジポスト。
FIG. 1 is a sectional view showing the structure of a telephone handset according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of the receiver portion of a telephone handset according to an embodiment of the present invention, and FIG. 3 is a conventional FIG. 2 is a cross-sectional view showing the structure of a telephone handset. 6... Upper case, 7... Lower case, 8... Input/output connector, 9... Transmitter, 10... Preamplifier, 11... Handset, 12... Ring-shaped protrusion, 13
...Stepped part, 14...Fixed part, 15...Sound emission hole, 1
6...Ceramic piezoelectric body, 17...Metal plate, 18
... Back air chamber plate, 19 ... Lead wire, 20 ... Notch, 21 ... Small hole, 22 ... Acoustic resistance material, 23 ...
...Frame, 24...Elastic adhesive, 25...Fixing metal fittings, 26...Screw, 27...Screw post.
Claims (1)
金属板の周辺部にリング状に弾性を有する接着剤
を施して形成した圧電振動子と前記圧電振動子へ
の入出力手段と、前記圧電振動子との間に空間を
形成し、通気量を制御する小孔を有する背気室板
とを、ハンドセツトの下ケースの送話部・受話部
の少なくとも一方の内側底部に設けたリング状突
起の解放端部に形成した段部に挿入固定した電話
用送受話器。 A piezoelectric vibrator formed by bonding a ceramic piezoelectric body to a metal plate and applying an elastic adhesive in a ring shape to the periphery of the metal plate, input/output means for the piezoelectric vibrator, and the piezoelectric vibrator. The open end of the ring-shaped protrusion provided on the inner bottom of at least one of the transmitting section and the receiving section of the lower case of the handset, and a back air chamber plate having a small hole for controlling the airflow rate and forming a space between the two. A telephone handset inserted and fixed into a step formed in the section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3001988U JPH01133848U (en) | 1988-03-07 | 1988-03-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3001988U JPH01133848U (en) | 1988-03-07 | 1988-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01133848U true JPH01133848U (en) | 1989-09-12 |
Family
ID=31254709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3001988U Pending JPH01133848U (en) | 1988-03-07 | 1988-03-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01133848U (en) |
-
1988
- 1988-03-07 JP JP3001988U patent/JPH01133848U/ja active Pending
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