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    • 8. 发明授权
    • Tree climbing implement
    • 爬树工具
    • US4574919A
    • 1986-03-11
    • US682306
    • 1984-12-17
    • Michael D. Clay
    • Michael D. Clay
    • A63B27/02A63B27/00
    • A63B27/02
    • A tree climbing implement adapted to be secured to the boot or shoe during a tree climbing operation and comprising a substantially L-shaped bracket engagable with the bottom of the boot, a spike-like element has one edge hingedly secured to one edge of the L-shaped bracket member and is movable between an extended position substantially perpendicular to the bracket member and a collapsed position substantially against or in abutting relation with respect to the bracket member for facilitating storing and/or transporting of the device. The spike-like member is of a unitary construction which greatly reduces the cost of manufacture of the implement.
    • 一种爬树工具,适于在攀爬操作期间固定到靴子或鞋上,并且包括与靴子的底部可接合的基本上L形的支架,穗状元件具有铰接地固定到L的一个边缘的一个边缘 并且可以在基本上垂直于支架构件的延伸位置和基本上相对于支架构件抵靠或邻接的收缩位置之间移动,以便于装置的存储和/或运输。 穗状构件是一体的构造,其大大降低了工具的制造成本。