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    • 4. 发明申请
    • LOCK
    • US20120027512A1
    • 2012-02-02
    • US13191753
    • 2011-07-27
    • Sean Evans
    • Sean Evans
    • F16B1/00
    • B60R9/0485Y10T403/74
    • A lock for retaining one or more ladders or trestles to a rack comprises a hook which hooks under the rack while the shaft of the hook extends through and beyond the one or more ladders or trestles and a cross beam with a flange at each end which receives the shaft of the hook and sits on and around the one or more ladders or trestles and a handle which also receives the shaft of the hook and secures the cross beam in place thereby fastening the one or more ladders or trestles to the rack and wherein said cross beam is extendable to fit a variety of ladder or trestle sizes.
    • 用于将一个或多个梯子或支架保持在架子上的锁定件包括一钩钩钩在齿条下方,而钩的轴延伸穿过并超过一个或多个梯子或支架,以及横梁,每个端部均带有法兰 钩的轴并且坐在一个或多个梯子或支架上和周围,并且还具有接收钩的轴并且将横梁固定在适当位置的手柄,从而将一个或多个梯子或支架固定到支架上,并且其中所述 横梁可以延伸以适应各种梯子或支架尺寸。