SHAFT PROTECTION WALL AND METAL FITTING FOR DOOR GUIDE

SHAFT PROTECTION WALL AND METAL FITTING FOR DOOR GUIDE

PURPOSE:To cover an opening section to a satisfactory extent when it is not required by installing a slidable door. CONSTITUTION:An opening section 20 is partially installed to the peripheral surface of a shaft protection wait 10 while a sliding able door 21 is installed in the circumferential direc...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: YOSHII KOICHI
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Beschreibung
Zusammenfassung:PURPOSE:To cover an opening section to a satisfactory extent when it is not required by installing a slidable door. CONSTITUTION:An opening section 20 is partially installed to the peripheral surface of a shaft protection wait 10 while a sliding able door 21 is installed in the circumferential direction of the shaft protection wall 10. The door 21 is provided with first and second door guide metal fittings 23 and 37 and moves on a lateral flange 3a on the upper side of a liner plate 2. A slanting-prevention means 32 comes in contact with the surface of the liner plate 2, thereby preventing the door from being slanted in the planner direction.