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    • 27. 发明授权
    • Scraper assembly with blade lock means
    • 刮刀总成带刀片锁定装置
    • US4238883A
    • 1980-12-16
    • US49038
    • 1979-06-15
    • Chester F. JacobsonNorman D. Poisson
    • Chester F. JacobsonNorman D. Poisson
    • B26B5/00
    • B26B5/005
    • A scraper assembly comprising a housing having a chamber therein adapted to receive and releasably retain blade units, the housing having a head portion adapted to receive and retain a first of the blade units, and a cover member adapted to cover the first blade retained by the head portion, the cover member being releasably retained by engagement with the head portion, the cover member being further adapted to cover portions of the housing remote from the head portion, the cover member being releasably retained by engagement with a second portion of the housing, whereby the cover member may be selectively positioned to cover the first blade unit and may be removed therefrom and positioned on the housing at an end remote from the first blade unit to expose the first blade unit for scraping operations, and a lock means, comprising an integral portion of the housing, for locking the first blade unit in the head portion.
    • 一种刮板组件,其包括壳体,所述壳体具有适于容纳和可释放地保持叶片单元的室,所述壳体具有适于容纳和保持所述叶片单元中的第一叶片单元的头部;以及覆盖所述第一叶片 所述盖构件通过与所述头部接合而被可释放地保持,所述盖构件还适于覆盖远离所述头部的所述壳体的部分,所述盖构件通过与所述壳体的第二部分接合而可释放地保持, 由此盖构件可以被选择性地定位成覆盖第一刀片单元并且可以从其移除并且在远离第一刀片单元的端部处定位在壳体上以暴露第一刀片单元以进行刮削操作,以及锁定装置,包括 壳体的整体部分,用于将第一刀片单元锁定在头部中。