发明授权
- 专利标题： Pressure differential regulating valve unit, a liquid cartridge and a method for assembling a liquid cartridge
- 专利标题（中）： 压差调节阀单元，液体盒和组装液体盒的方法
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申请号： US10730784申请日： 2003-12-08
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公开(公告)号： US07097293B2公开(公告)日： 2006-08-29
- 发明人: Akira Ichihashi , Kenji Ito , Satoshi Shinada , Yasuto Sakai , Taku Ishizawa
- 申请人： Akira Ichihashi , Kenji Ito , Satoshi Shinada , Yasuto Sakai , Taku Ishizawa
- 申请人地址： JP 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： JP Tokyo
- 代理机构： Stroock & Stroock & Lavan LLP
- 优先权： JP2002-362963 20021213; JP2003-205103 20030731
- 主分类号： B41J2/175
- IPC分类号： B41J2/175
摘要：
In a liquid cartridge, a surface of a valve lid side of a valve member communicates with a liquid supplying part, a surface of a first part of a wall face side of a liquid containing section communicates with the liquid containing section, in regard to the valve member, and a surface of a second part communicates with the liquid supplying part, and if the pressure of the liquid supplying part is smaller than the pressure of the liquid containing section, the valve member is pressed to the valve lid side, the liquid containing section and the liquid supplying part communicate with each other over the first and second parts of the valve member, the valve member is formed of a material softer than the wall face of the liquid containing section, and a projection is provided on a surface being in contact with the valve member in regard to the wall face of the liquid containing section along an outer circumference surrounding the first and second parts of the valve member, being in pressure contact with the valve member.
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