SEGMENT ERECTOR DEVICE

• Main Authors: KATSUNUMA KIYOSHI, MORIYA YOICHI, HOSODA KAZUKI, YOKOTA MASAKAZU, HATTORI KOICHI, SEKIMOTO NOBORU, TOMIYAMA YASUSHIGE, YAMAMORI NORIYASU, UEDA HISATERU, KIKUCHI YUKIO, TANAKA HIDEKI
• Format: Patent
• Language: English
• Published: 09.10.2002
• Edition: 7
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

PROBLEM TO BE SOLVED: To provide a segment erector device which allows operations for conveying and assembling various types of segments to be smoothly and efficiently conducted without reference to the shape and height of a tunnel pit or the shape and number of division of the segment not only by bringing about simplification and downsizing of a structure but also by enabling miniaturization of the device. SOLUTION: An operating means (9) provided in a revolving superstructure (3a) is composed of a composite operating mechanism constituted by combining a link driving cylinder (12), a parallel link mechanism (13) which is coupled to the cylinder (12) and can move up and down, and an ascent/descent cylinder (11) which is coupled to the mechanism (13) and can move up and down independently of the mechanism (13). A central axis (1) of revolution of the revolving superstructure (3a) can be disposed in such a manner as to be deflected upward with respect to a central axis (1') of a tunnel, so as to enable securement of a lower space of the revolving superstructure (3a), which has the largest space required during the holding and assembly of the segment, and enable securement of a segment holding space, which is the smallest space required for the assembly of the segment, above the revolving superstructure (3a).