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    • 2. 发明授权
    • Foldable crutch
    • 折叠拐杖
    • US5325879A
    • 1994-07-05
    • US39977
    • 1993-03-30
    • Donald H. Burns
    • Donald H. Burns
    • A61H3/02A61H3/00
    • A61H3/02
    • A conventional tubular aluminum crutch which is modified to be conveniently folded 180.degree. into a compact size and stored when not in use. This crutch is cut in half and by using load-bearing double-male ended couplers which are friction fitted into the lower section struts for slidably engaging the upper section struts. Two cables are secured below the coupler by roll pins in each support tube of the lower section. These cables are then inter-connected to bungee cord within the upper section struts, and the opposite end of the bungee cords are secured by roll pins inside the support tubes of the upper section struts. When used, an individual simply unfolds the crutch, thereby allowing the bungee cord to contract and slidably engage the couplers of the lower section within the open ends of the upper section.
    • 一种常规的管状铝拐杖,其被改造成方便地折叠180度,成为紧凑的尺寸,并在不使用时储存。 这种拐杖被切成两半,并且通过使用摩擦配合到下部支柱中的承载双公端连接器来滑动地接合上部支柱。 两个电缆通过在下部的每个支撑管中的辊销固定在联接器下方。 这些电缆然后与上部支柱中的蹦极线相互连接,并且蹦极线的相对端部通过辊销固定在上部支柱的支撑管内。 当使用时,个人简单地展开拐杖,从而允许蹦极收缩并且可滑动地接合在上部的开口端内的下部的联​​接器。