JPH0212840U - - Google Patents
Info
- Publication number
- JPH0212840U JPH0212840U JP9147188U JP9147188U JPH0212840U JP H0212840 U JPH0212840 U JP H0212840U JP 9147188 U JP9147188 U JP 9147188U JP 9147188 U JP9147188 U JP 9147188U JP H0212840 U JPH0212840 U JP H0212840U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- cylinder
- communication portion
- piezoelectric
- shape
- 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
- 239000012530 fluid Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
Landscapes
- Impact Printers (AREA)
Description
第１図は本考案の実施例の圧電ヘツドの構造概
要を示す側面図、第２図は従来の流体圧使用変位
拡大方式印字ヘツドの構造概要を示す側面図、第
３図は従来の圧電ヘツドの問題点説明図で、
図中、２は圧電素子、３はピストン、４は可動
部材、７は印字用部材（ワイヤ）、８は液状流体
、１１はシリンダ、１２は連通部である。
FIG. 1 is a side view showing an outline of the structure of a piezoelectric head according to an embodiment of the present invention, FIG. In the figure, 2 is a piezoelectric element, 3 is a piston, 4 is a movable member, 7 is a printing member (wire), 8 is a liquid fluid, 11 is a cylinder, and 12 is a communication portion.
Claims (1)
自在に支持するとともに、該ピストン３より小断
面積の連通部１２が突設されたシリンダ１１と、 前記連通部１２に摺動自在に支持され、外方に
突出する印字用部材７を備えた可動部材４と、 前記シリンダ１１内に収納されて前記ピストン
３と前記可動部材４の間を満たす液状流体８とを
有する圧電ヘツドにおいて、 前記ピストン３と前記連通部１２の間のシリン
ダ１１の内壁の形状が、前記圧電素子２の作動時
における前記ピストン３の移動により形成される
前記液状流体８の流線の形状に合うように設定さ
れたことを特徴とする圧電ヘツド。[Claims for Utility Model Registration] A cylinder 11 that slidably supports a piston 3 driven by a piezoelectric element 2 and has a communication portion 12 having a small cross-sectional area protruding from the piston 3; and the communication portion 12. A movable member 4 that is slidably supported by a member and has a printing member 7 that projects outward; and a liquid fluid 8 that is housed in the cylinder 11 and fills the space between the piston 3 and the movable member 4. In the piezoelectric head, the shape of the inner wall of the cylinder 11 between the piston 3 and the communication portion 12 is the shape of the streamline of the liquid fluid 8 formed by the movement of the piston 3 when the piezoelectric element 2 is actuated. A piezoelectric head characterized in that it is configured to fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9147188U JPH0212840U (en) | 1988-07-12 | 1988-07-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9147188U JPH0212840U (en) | 1988-07-12 | 1988-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0212840U true JPH0212840U (en) | 1990-01-26 |
Family
ID=31315953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9147188U Pending JPH0212840U (en) | 1988-07-12 | 1988-07-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0212840U (en) |
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1988
- 1988-07-12 JP JP9147188U patent/JPH0212840U/ja active Pending