发明名称 Support device for use in the building and maintenance of sloping roofs
摘要 The device comprising a support member ( 10 ) connected to a base ( 12 ) by a joint ( 18 ), and at least one support arm ( 14, 16 ) extending between the support member ( 10 ) and the base ( 12 ) at a location remote from the joint ( 18 ). A rung-engaging element ( 20 ) is carried by the base ( 12 ) and extends in a direction away from the support member ( 10 ) to engage the rungs ( 22 ) of a roof ladder ( 24 ). The support member ( 10 ) has a support surface ( 46 ) which in use lies in a generally horizontal plane while the base ( 12 ) lies generally adjacent and parallel to the plane of the roof ( 26 ).
申请公布号 US2005194212(A1) 申请公布日期 2005.09.08
申请号 US20040790681 申请日期 2004.03.03
申请人 BOARD JAMES;BOARD JAMES A. 发明人 BOARD JAMES;BOARD JAMES A.
分类号 E06C7/00;(IPC1-7):E06C7/00 主分类号 E06C7/00
代理机构 代理人
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