| 摘要 |
<p>The problems of any non-free-standing ladder when supported near its upper end on a delicate or slippery surface are that it may damage the supporting surface or slip dangerously. Those problems are solved by this invention, which comprises a pair of lengths (55) of soft, flexible material each having a non-slip exterior support contact surface (57), and an affixing means (59, 60) located along a longitudinal cavity (66), and in one preferred embodiment with supplemental longitudinal affixing means (71), to affix the invention to the upper side members of the ladder. The invention provides broad, soft and non-slip bearing surfaces (57) to support the ladder. In certain preferred embodiments the invention comprises patterned support surfaces (213, 214, 215) to increase friction and prevent scratching, and also a locating cap (222) on each length to fit over the ladder side-members.</p> |
