Accession Number : ADD011018
Title : Service Platform for a Ladder.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC
Personal Author(s) : Anderson,H R ; Hamilton,R M
Report Date : 20 Mar 1984
Pagination or Media Count : 5
Abstract : A service platform for a ladder has rung locking means that provides support for a frame member upon which a user stands. A scissor-like action is produced about a bearing wherein one lever arm is an extended arm attached to the frame and the other lever arm is a support lever connected directly to the other support lever by a support bar which rests upon the side rails of the ladder. The ladder rung is inserted into slots formed in the extended arms, the bearings, and in the support levers. Rotation of the frame causes the slots to become misaligned thereby locking the ladder rung therein. The service platform can be stored on the ladder without interfering with its use.
Descriptors : *Patents, *Platforms, Extendable structures, Frames, Supports, Locking fastener devices
Subject Categories : Construction Equipment, Materials & Supplies
Distribution Statement : APPROVED FOR PUBLIC RELEASE