Shield tunnelling machine
AssigneeKabushiki Kaisha Iseki Kaihatsu Koki
InventorToshio Akesaka
Life of this patent
Estimating the term…
Abstract
A shield tunnelling machine is provided. Such shield tunnelling machines include a tubular shield body; an excavating cutter assembly disposed on a front end of the body; a partition wall for defining the interior of the body into a front region and a rear region; a rotor having an outer diameter gradually increasing toward the rear; a drive mechanism for turning the rotor around a first axis and rotating the rotor around a second axis eccentric to the first axis; an annular member mounted to the rotor to be turned and rotated together with the rotor and extending around the first axis; and a discharging mechanism for discharging the excavated matter to the rear region.
Claims9
A shield tunnelling machine, comprising:
- a tubular shield body having a front end and a rear end;
- an excavating cutter assembly disposed on said front end of said body;
- a partition wall for defining the interior of said body into a front region and a rear region behind said front region, said front region having a first chamber for receiving matter excavated by said cutter assembly and a second chamber communicating with a rear portion of said first chamber to receive the excavated matter from said first chamber, said second chamber extending around an axis of said body;
- a rotor disposed in said first chamber and having an outer diameter gradually increasing toward the rear end;
- a drive mechanism for turning said rotor around a first axis extending in the longitudinal direction of said body and rotating said rotor around a second axis eccentric to said first axis;
- an annular member mounted to said rotor to be turned and rotated together with said rotor in said second chamber and extending around the axis of said body;
- a discharging mechanism for discharging excavated matter received in said second chamber from a lower portion of said second chamber to said rear region;
- and
- a plurality of blades mounted on an outer surface of said annular member at angular intervals to extend in radial and longitudinal directions of said body.
A shield tunnelling machine, comprising:
- a tubular shield body having a front end and a rear end;
- an excavating cutter assembly disposed on said front end of said body;
- a partition wall for defining the interior of said body into a front region and a rear region behind said front region, said front region having a first chamber for receiving matter excavated by said cutter assembly and a second chamber communicating with a rear portion of said first chamber to receive the excavated matter in said first chamber, said second chamber extending around an axis of said body;
- a rotor disposed in said first chamber and having an outer diameter gradually increasing toward the rear end;
- a drive mechanism for turning said rotor around a first axis extending in the longitudinal direction of said body and rotating said rotor around a second axis eccentric to said first axis;
- a plurality of blades mounted to said rotor around the axis of said body at angular intervals to extend in the radial and longitudinal directions of said body in said second chamber;
- and
- a discharging mechanism for discharging excavated matter received in said second chamber from a lower portion of said second chamber to said rear region.
Dependencies are inferred from the claim text.