BIT REPLACING DEVICE FOR EXCAVATING MACHINE

• Main Authors: HANAOKA, YASUHARU, SHIMADA, ISAO, SUDOH, KENJI
• Format: Patent
• Language: English; French; Japanese
• Published: 29.12.2010
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

An opening in which a replacement bit was disposed can be closed without requiring a large drive force, the replacement bit can be replaced without moving the replacement bit, and the replacement bit can be replaced without impairing the efficiency of the replacement work. A work space (28) is forme...