JPH01132155U - - Google Patents
Info
- Publication number
- JPH01132155U JPH01132155U JP2717288U JP2717288U JPH01132155U JP H01132155 U JPH01132155 U JP H01132155U JP 2717288 U JP2717288 U JP 2717288U JP 2717288 U JP2717288 U JP 2717288U JP H01132155 U JPH01132155 U JP H01132155U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric vibrator
- back air
- bonded
- handset
- piezoelectric
- 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 3
- 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
- 239000000463 material Substances 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 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図は本考案の他の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４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…段部凸部、１
４…固定部、１５…放音孔、１６…セラミツク圧
電体、１７…金属板、１８…背気室板、１９…リ
ード線、２０…凹部、２１…小孔、２２…音響抵
抗材、２３…接着剤、２４…ネジポスト、２５…
固定金具、２６…ネジ、２７…段部。
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. FIG. 4 is an enlarged cross-sectional view of the handset portion of a telephone handset according to another embodiment of the invention, and FIG. 4 is a cross-sectional view showing the structure of a conventional telephone handset. 6... Upper case, 7... Lower case, 8... Input/output connector, 9... Transmitter, 10... Preamplifier, 11... Handset, 12... Ring-shaped protrusion, 13... Step convex part, 1
4... Fixed part, 15... Sound emission hole, 16... Ceramic piezoelectric body, 17... Metal plate, 18... Back air chamber plate, 19... Lead wire, 20... Recessed part, 21... Small hole, 22... Acoustic resistance material, 23 ...Adhesive, 24...Screw post, 25...
Fixing metal fittings, 26...screws, 27...steps.
Claims (1)
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中段に形成した
段部凸部に、接着剤を用いて前記圧電振動子を接
着し、さらに前記背気室板を固定した電話用送受
話器。 A piezoelectric vibrator made of a ceramic piezoelectric material bonded to a metal plate, an input/output means for the piezoelectric vibrator, and a back air having a small hole for controlling the amount of ventilation by forming a space between the piezoelectric vibrator and the piezoelectric vibrator. The piezoelectric vibrator is bonded using an adhesive to a step convex portion formed in the middle of a 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 telephone handset further comprising the back air chamber plate fixed thereto.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2717288U JPH01132155U (en) | 1988-03-01 | 1988-03-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2717288U JPH01132155U (en) | 1988-03-01 | 1988-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01132155U true JPH01132155U (en) | 1989-09-07 |
Family
ID=31249435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2717288U Pending JPH01132155U (en) | 1988-03-01 | 1988-03-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01132155U (en) |
-
1988
- 1988-03-01 JP JP2717288U patent/JPH01132155U/ja active Pending