JPS63181099U - - Google Patents
Info
- Publication number
- JPS63181099U JPS63181099U JP7331387U JP7331387U JPS63181099U JP S63181099 U JPS63181099 U JP S63181099U JP 7331387 U JP7331387 U JP 7331387U JP 7331387 U JP7331387 U JP 7331387U JP S63181099 U JPS63181099 U JP S63181099U
- Authority
- JP
- Japan
- Prior art keywords
- elastic body
- lightweight elastic
- diaphragm
- cylindrical
- pressing member
- 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.)
- Granted
Links
- 229920000642 polymer Polymers 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims 1
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
Description
第１図は本考案実施例の軸方向断面図、第２図
は同、一部切欠上面図、第３図は要部分解斜視図
、第４図は従来例の軸方向断面図である。
１は高分子圧電性フイルム振動板、２は軽量弾
性体、３は押圧部材、４は上部蓋、５は下部蓋で
ある。
FIG. 1 is an axial sectional view of the embodiment of the present invention, FIG. 2 is a partially cutaway top view of the same, FIG. 3 is an exploded perspective view of the main part, and FIG. 4 is an axial sectional view of the conventional example. 1 is a polymer piezoelectric film diaphragm, 2 is a lightweight elastic body, 3 is a pressing member, 4 is an upper lid, and 5 is a lower lid.
Claims (1)
２の外周面を囲むように配置された円筒形状の高
分子圧電性フイルムからなる振動板１と、前記軽
量弾性体２の中心孔内に該軽量弾性体を外方に押
圧するように同軸に配置された形状記憶合金から
なる円筒状の押圧部材３と、前記振動板１と軽量
弾性体２並びに押圧部材３相互の位置関係を保持
する上部蓋４および下部蓋５とからなることを特
徴とする圧電型スピーカ。 A cylindrical lightweight elastic body 2, a diaphragm 1 made of a cylindrical polymer piezoelectric film arranged to surround the outer peripheral surface of the lightweight elastic body 2, and a diaphragm 1 in the center hole of the lightweight elastic body 2. A cylindrical pressing member 3 made of a shape memory alloy is arranged coaxially so as to press the lightweight elastic body outward, and the mutual positional relationship between the diaphragm 1, the lightweight elastic body 2, and the pressing member 3 is maintained. A piezoelectric speaker comprising an upper lid 4 and a lower lid 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7331387U JPH054392Y2 (en) | 1987-05-15 | 1987-05-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7331387U JPH054392Y2 (en) | 1987-05-15 | 1987-05-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63181099U true JPS63181099U (en) | 1988-11-22 |
| JPH054392Y2 JPH054392Y2 (en) | 1993-02-03 |
Family
ID=30917538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7331387U Expired - Lifetime JPH054392Y2 (en) | 1987-05-15 | 1987-05-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH054392Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011052521A1 (en) * | 2009-10-28 | 2011-05-05 | Ｊ＆Ｋカーエレクトロニクス株式会社 | Speaker device |
-
1987
- 1987-05-15 JP JP7331387U patent/JPH054392Y2/ja not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011052521A1 (en) * | 2009-10-28 | 2011-05-05 | Ｊ＆Ｋカーエレクトロニクス株式会社 | Speaker device |
| JP2011097297A (en) * | 2009-10-28 | 2011-05-12 | J&K Car Electronics Corp | Speaker device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH054392Y2 (en) | 1993-02-03 |