发明名称 LEVELLING APPARATUS FOR A SUPPORT STRUCTURE
摘要 A levelling apparatus for levelling a support structure (50), for example a ladder or scaffold, on an uneven surface and a method for attaching the levelling apparatus to the support structure. The apparatus comprises an inner member (14, 14a) telescopically movable within a housing (16, 16a) which may be secured at a desired length by a securing means (13, 21). In use, the housing (16, 16a) is attached to the support structure (50) using an attachment means (17, 18, etc) which at least partially extends into an interior of a cross-member of the support structure (50), for example a ladder rung (53).
申请公布号 WO02059446(A1) 申请公布日期 2002.08.01
申请号 WO2002AU00080 申请日期 2002.01.25
申请人 SCOTT, JON, ROBERT;RICHARDS, ANDREW, ANTHONY 发明人 SCOTT, JON, ROBERT;RICHARDS, ANDREW, ANTHONY
分类号 E06C7/44;(IPC1-7):E06C7/44;E04G5/02;F16M11/24 主分类号 E06C7/44
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