发明授权
US5880763A Ink jet recording head with head frame and piezoelectric vibration
elements having configuration for suppressing stress in flow path unit
失效
具有头框架的喷墨记录头和具有用于抑制流路单元中的应力的构造的压电振动元件
- 专利标题： Ink jet recording head with head frame and piezoelectric vibration elements having configuration for suppressing stress in flow path unit
- 专利标题（中）： 具有头框架的喷墨记录头和具有用于抑制流路单元中的应力的构造的压电振动元件
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申请号： US413473申请日： 1995-03-28
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公开(公告)号： US5880763A公开(公告)日： 1999-03-09
- 发明人: Yuji Tanaka , Shuji Yonekubo , Koji Morikoshi
- 申请人： Yuji Tanaka , Shuji Yonekubo , Koji Morikoshi
- 申请人地址： JPX Tokyo
- 专利权人： Seiko Epson Corporation
- 当前专利权人： Seiko Epson Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX6-057557 19940328; JPX6-080673 19940419; JPX7-086252 19950317
- 主分类号： B41J2/045
- IPC分类号： B41J2/045 ; B41J2/055 ; B41J2/14 ; B41J2/16
摘要：
A bonding width L between a head frame 5 and a flow path unit 12 in a direction orthogonal to an array of pressure producing chambers 7 is set to 0.5b.ltoreq.L.ltoreq.5a if it is assumed that a distance from the bonding end to the piezoelectric vibration element 2 closest to the head frame 5 is a and that the bonding ends of the head frame 5 interposing the piezoelectric vibration element 2 is b. Cracking of a spacer 6 or separation of the spacer 6 from a resilient plate 4 is prevented by ensuring a rigidity of the head frame 5 necessary for suppressing deformation of the flow path unit 12 and by causing the head frame 5 to absorb internal stresses of the flow path unit 12 caused by ambient temperature change.
公开/授权文献
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