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US 2024/0200449 A1Published application
Tunnel excavation device
AssigneeKomatsu Ltd.
InventorsNaoki SEKIYAMA, Masahiro SUWANO, Hiroshi ASANO, Taku ARAKAWA
Life of this patent
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Abstract
The tunnel excavation device includes a front body section and a rear body section. The front body section includes a cutter head, a cutter head support, and a vertical shoe. The rear body section is disposed to a rear of the front body section and includes a gripper section for obtaining a reaction force when excavating. The cutter head includes a plurality of roller cutters. The cutter head support supports the cutter head. The vertical shoe is disposed below the cutter head support and is provided in a turnable manner to the cutter head support.
Claims14
A tunnel excavation device comprising:
- a front body section including a cutter head including a plurality of cutters, a cutter head support section supporting the cutter head, and a lower shoe disposed below the cutter head support section, the lower shoe being provided in a turnable manner to the cutter head support section;
- and
- a rear body section including a gripper section configured to obtain a reaction force when excavating, the rear body section being disposed to rear of the front body section.
Dependencies are inferred from the claim text.