GAS BAG INSERT JIG

PROBLEM TO BE SOLVED: To miniaturize a gas bag insert jig, simplify gas shut-off work and cut down earth work cost. SOLUTION: Opening parts 2, 2a and side walls 3, 3a are formed toward the right and the left at the lower part of a vertical gas bag insert pipe 1, and gas bags 5, 5a inserted by a guid...

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Bibliographic Details
Main Authors MORI AKIHITO, KISHINO SOICHI, KINUGAWA MASAYA
Format Patent
LanguageEnglish
Published 31.03.1998
Edition6
Subjects
BLASTING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
JOINTS OR FITTINGS FOR PIPES
LIGHTING
MEANS FOR THERMAL INSULATION IN GENERAL
MECHANICAL ENGINEERING
PIPES
SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To miniaturize a gas bag insert jig, simplify gas shut-off work and cut down earth work cost. SOLUTION: Opening parts 2, 2a and side walls 3, 3a are formed toward the right and the left at the lower part of a vertical gas bag insert pipe 1, and gas bags 5, 5a inserted by a guide pipe 8 are respectively expanded from the opening parts 2, 2a toward the inside of a gas conduit A. As a result, the gas bags 5, 5a are correctly controlled in the attitude and expanded in a position close to an insert hole B so as to adhere closely to the pipe to shut off gas. With this constitution, the length of air force-feed pipes 6, 6a can be minimized, so that a jig can be miniaturized. Workability is improved by miniaturization of the jig, and a work ditch can be made small so as to cut down earth work cost.
Bibliography:Application Number: JP19960237895