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    • 7. 发明授权
    • Tube expander
    • 管扩管器
    • US4302176A
    • 1981-11-24
    • US183018
    • 1980-09-02
    • William F. Gordon
    • William F. Gordon
    • B29C55/24B29C57/04B29D23/00
    • B29C57/04B29C55/24
    • A device for expanding flexible tubes and similar elastic articles including a cable, hydraulic or air actuated cam coupled to move projecting fingers for expanding the elastic article. The device includes a housing pivotally mounting two opposed parallel blocks, each of which includes a cam follower surface and a projecting finger. Initially, the spreading finger elements are inserted into a tube or other elastic article and the cam is moved against the cam follower to pivot the blocks away from one another. At that time, the attached fingers also rotate away from one another and act to expand the tube or elastic article. The housing is constructed to enable the cam and drive to be interchanged for cable, hydraulic, or air cylinder actuation.
    • 用于扩展柔性管和类似的弹性制品的装置,包括电缆,液压或空气致动的凸轮,其连接以移动突出的指状物以使弹性制品膨胀。 该装置包括枢转地安装两个相对的平行块的壳体,每个平行块包括凸轮从动表面和突出的指状物。 最初,扩展指状元件被插入管或其它弹性制品中,并且凸轮相对于凸轮从动件移动以使块彼此远离。 此时,附着的指状物也彼此远离旋转并且用于使管或弹性物品膨胀。 壳体被构造成使得凸轮和驱动器能够互换用于电缆,液压或气缸致动。