发明名称 |
Tube pump and ink jet recording apparatus using the tube pump |
摘要 |
A groove wall of a roller support groove opened to both end faces of a pump wheel comprises such a cam face wherein a roller rotates and rolls and is displaced from release operation position a to pump operation position b with rotation of the pump wheel in a pump operation direction from a release operation state and wherein the roller remains immobile and is displaced from the pump operation position b to the release operation position a with rotation of the pump wheel in a release operation direction from a pump operation state.
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申请公布号 |
US6733255(B2) |
申请公布日期 |
2004.05.11 |
申请号 |
US20020152978 |
申请日期 |
2002.05.23 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
OTA MITSUGU;KOASE TAKASHI |
分类号 |
B41J2/18;B41J2/165;B41J2/185;F04C5/00;(IPC1-7):F04B43/08;B41J2/175;F04B43/12 |
主分类号 |
B41J2/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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