ERECTOR DEVICE OF SHIELD MACHINE

PROBLEM TO BE SOLVED: To save a space and manufacturing cost by downsizing and simplifying the structure of an erector device of a shield machine. SOLUTION: This erector device of a shield machine includes chord-like members 13 vertically extending at both sides of a rotary drum 11, a body frame inc...

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Bibliographic Details
Main Authors KUKIHARA TAKEKAZU, ISOBE SUNAO, IWATA HIROKICHI
Format Patent
LanguageEnglish
Published 02.09.2010
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Summary:PROBLEM TO BE SOLVED: To save a space and manufacturing cost by downsizing and simplifying the structure of an erector device of a shield machine. SOLUTION: This erector device of a shield machine includes chord-like members 13 vertically extending at both sides of a rotary drum 11, a body frame including lifting frames 15 positioned rearward apart from the chord-like members 13 and tilted frames 16 which diagonally extend from bottom ends of the lifting frames 15 and extend by a predetermined length from the lifting frames 15 rearward, segment holding bodies 19 connected to the tilted frames 16, a parallel link mechanism for connecting the lifting frames 15 to the chord-like members 13 so as to be liftable, a hydraulic cylinder for lifting the body frame 14 by vertically oscillating the mechanism, a sliding member 20 for connecting the segment holding bodies to the tilted frames 16 slidably by a predetermined stroke in the longitudinal direction, and a hydraulic cylinder 21 for longitudinally moving and driving the segment holding bodies relative to the tilted frames 16 through the mechanism. COPYRIGHT: (C)2010,JPO&INPIT
Bibliography:Application Number: JP20090037819