Global Patent Index - EP 1010856 A1

EP 1010856 A1 2000-06-21 - Tunnel boring machine

Title (en)

Tunnel boring machine

Title (de)

Tunnelvortriebsmaschine

Title (fr)

"Machine de creusement d'un tunnel"

Publication

EP 1010856 A1 (FR)

Application

EP 99402966 A

Priority

FR 9816051 A

Abstract (en)

The tunnelling machine, consisting of rear and front (3) shields connected by floating joints, and a front shield cutting face (4) in the form of a circular plate (5) with cutters (7). The machine has at least one power cylinder (20) set parallel to its lengthwise axis and comprising a fixed section (21) on the machine and a moving section (22) which can be moved between a retracted position and an active position in which it makes contact with the working rock face and allows the front shield and cutting face to be retracted independently of the rear shield.

Abstract (fr)

L'invention a pour objet une machine de creusement d'un tunnel, du type comprenant un bouclier arrière (2) et un bouclier avant (3) portant une tête de coupe (4) munie d'outils de travail (7). La machine de creusement comporte au moins un vérin (20) disposé parallèlement à l'axe longitudinal de ladite machine et comprenant une partie fixe solidaire de cette machine et une partie mobile déplaçable en translation entre une position escamotée et une position active en contact avec le front de taille pour reculer ledit bouclier avant (3) et ladite tête de coupe (4), indépendamment du bouclier arrière (2). <IMAGE> <IMAGE>

IPC 1-7 (main, further and additional classification)

E21D 9/06; E21D 9/08

IPC 8 full level (invention and additional information)

E21D 9/06 (2006.01); E21D 9/08 (2006.01); E21D 9/087 (2006.01)

CPC (invention and additional information)

E21D 9/06 (2013.01); E21D 9/0621 (2013.01); E21D 9/087 (2013.01); E21D 9/093 (2016.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1010856 A1 20000621; FR 2787506 A1 20000623; FR 2787506 B1 20010316

INPADOC legal status


2002-07-03 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Date of withdrawal: 20020504

2001-03-07 [AKX] PAYMENT OF DESIGNATION FEES

- Ref Legal Event Code: AKX

- Free Format Text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-02-07 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20001211

2000-06-21 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-06-21 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI