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    • 2. 发明授权
    • Ink-jet recording apparatus and parts thereof
    • 喷墨记录装置及其部件
    • US06551079B1
    • 2003-04-22
    • US09594522
    • 2000-06-16
    • Masakatsu IwataMasanori KanekoHisashi Taniguchi
    • Masakatsu IwataMasanori KanekoHisashi Taniguchi
    • F04B3910
    • F04B53/16F04B53/14F04B53/22Y10T137/86871
    • When a piston unit and a valve unit employed in a recording head of an ink-jet recording apparatus were manufactured by a conventional method, comprising parts for these unit were separately formed and assembled, which required considerable man-hours for the assembly and measures to prevent contamination by foreign particles during the assembly. The present invention is carried out to solve these problems and provides units at less expensive cost. In order to attain above-mentioned objectives the units are formed out of mutually insoluble materials with other parts by an insert molding or a multi-color molding. By employing forming materials with different molding shrinkage rate, desired gas-tightness of the units are attained by keeping moving performances of the units almost intact. In addition a rubber or an elastomer is employed as a material for a part which requires a gas-tightness and flexibility.
    • 当通过常规方法制造用于喷墨记录装置的记录头中的活塞单元和阀单元时,包括用于这些单元的部件分别形成和组装,这需要相当的工时以进行组装和措施 防止外来颗粒在装配过程中受到污染。 本发明是为了解决这些问题而进行的,并以较便宜的成本提供单元。 为了实现上述目的,通过嵌件成型或多色成型,将单元与其它部件相互不溶解的材料形成。 通过采用具有不同成型收缩率的成型材料,通过保持单元的移动性能几乎完整而获得所需单元的气密性。 此外,橡胶或弹性体用作要求气密性和柔软性的部件的材料。