发明名称 LADDER SAFETY DEVICE
摘要 The invention which is the subject of this application relates to a device for use in stabilising the position of a ladder on a surface when in an in use position. The device comprises a series of members which engaged at a plurality of locations on the ladder rungs so as to effect a movement of the centre of the gravity towards the wall or other vertical structure against which the ladder is leant, to reduce the susceptibility of the ladder to slip. The device can be collapsible to enable the same to be stored and moved more easily from site to site.
申请公布号 CA2250302(A1) 申请公布日期 2000.04.13
申请号 CA19982250302 申请日期 1998.10.13
申请人 TAYLOR, DAVID;ALLAN, MELVYN;WILSON, BRIAN 发明人 TAYLOR, DAVID
分类号 E06C7/42;(IPC1-7):E06C7/00 主分类号 E06C7/42
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