EP 0667442 A1 19950816 - Tunnelling machine.
Title (en)
Tunnelling machine.
Title (de)
Tunnelvortriebsmaschine.
Title (fr)
Machine de percement de tunnels.
Publication
Application
Priority
GB 9402665 A 19940211
Abstract (en)
A tunnelling machine, especially suitable for tunnelling through soft material, comprises a support (20), an arm (46) pivotally mounted on the support about a generally horizontal axis, and a rotary cutter (50) mounted on the arm for cutting a slot in a tunnel end face. The arm (46) is linearly extensible and retractable while the slot is being cut so that, for example, tunnels of non-circular cross-section can be cut if desired. The machine will normally include drive means (65,66) for moving the arm about the horizontal axis and for extending and retracting it, sensors (70,71) for sensing the pivotal position and length of the arm, and a controller that controls the drive means in response to the sensors so that the cutter (50) can be moved through a predetermined arcuate profile. The machine may include a concrete supply arrangement for supplying concrete into the slot behind the cutter. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP)
E21D 9/04 (2013.01); E21D 9/1053 (2013.01); E21D 9/108 (2013.01)
Citation (search report)
- [XY] FR 2123846 A5 19720915 - PERRIER FERNAND SA, et al
- [Y] GB 2124407 A 19840215 - ZED INSTR LTD
- [DY] EP 0557805 A1 19930901 - TREVI SPA [IT]
- [YA] FR 2543612 A1 19841005 - STEPHANOISE DOUAISIS SABES [FR]
- [XA] EP 0394806 A1 19901031 - TREVI SPA [IT]
- [X] DE 1008681 B 19570523 - KORFMANN GMBH MASCHF
- [A] FR 2559541 A1 19850816 - GEWERK EISENHUETTE WESTFALIA [DE]
- [A] DE 3624962 A1 19880128 - GESTEINS & TIEFBAU GMBH [DE]
Designated contracting state (EPC)
BE DE DK ES FR GB GR IE IT NL PT
DOCDB simple family (publication)
EP 0667442 A1 19950816; GB 2286413 A 19950816; GB 9402665 D0 19940406; GB 9502504 D0 19950329
DOCDB simple family (application)
EP 95300801 A 19950209; GB 9402665 A 19940211; GB 9502504 A 19950209