Title:
COLLAPSIBLE LADDER IN HOLD
Document Type and Number:
Japanese Patent JPS6259190
Kind Code:
A
Abstract:
PURPOSE:To obviate the congestionof cargoe to steps and smooth a cargo work by disposing the steps pivotably about a hinge support between cage pipes disposed on the central strut and the circle thereof to raise up the steps by a cable when they are not used. CONSTITUTION:While the outer periphery of a ladder is formed of cage pipes 2, one end of a step 3 is supported by a hinge 5 and the cage pipes are arranged circumferentially parallel to a strut 1 and centering around same. Two case pipes 2 per every step 3 are arranged at approximately equal intervals to provide also a violent fall preventing means. And the pivotable end of each step is connected to a chain 8 provided with a tractive means. By pulling this cain 8 are raised up at a time all steps 3 not to congest cargos on the steps. As a result, the load work is smoothed and cleaning labor load is reduced while violent fall accidents of operators and damage of the ladder can be reduced.
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Inventors:
TAMURA TSUKASA
Application Number:
JP19595885A
Publication Date:
March 14, 1987
Filing Date:
September 06, 1985
Export Citation:
Assignee:
NIPPON KOKAN KK
International Classes:
B63B29/20; (IPC1-7): B63B29/20
Attorney, Agent or Firm:
Masahiro Tanaka
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