发明名称 Hinge and locking assembly for a center-folding ladder
摘要 <p>A locking hinge apparatus includes first and second hinge members coupled together for rotation about an axis, a lock movable between a locking position in which the first and second hinge members are prevented from rotating about the axis and a releasing position in which the first and second hinge members are permitted to rotate about the axis, and a knob rotatable about the axis and movable along the axis. The lock moves from the locking position to the releasing position in response to movement of the knob axially toward the first and second hinge members and then rotation of the knob about the axis. <IMAGE></p>
申请公布号 EP1473432(A1) 申请公布日期 2004.11.03
申请号 EP20040252430 申请日期 2004.04.27
申请人 COSCO MANAGEMENT INC. 发明人 BEAVER, JEFFREY
分类号 E05D11/10;E06C1/32;(IPC1-7):E06C1/32 主分类号 E05D11/10
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