Invention Grant
US09310753B2 Spring assist scissor lift 有权
弹簧辅助剪刀电梯

Spring assist scissor lift
Abstract:
A scissor lift apparatus includes a sliding carriage member and a pivoting linkage added to a conventional scissor lift in order to lower the force required to lift a tray holding heavy media during the initial portion of the lifting action where the scissor lift is fully compressed.
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