公开(公告)号：US20160273358A1

公开(公告)日：2016-09-22

申请号：US15033857

申请日：2014-11-04

Applicant: BOUYGUES TRAVAUX PUBLICS

Inventor： Philippe LIOTARD ,  Patrice ROBERT

IPC: E21D9/10

CPC classification number: E21D9/1006 ,  E21B10/20 ,  E21D9/10 ,  E21D9/104

Abstract: The invention relates to a cutter holder (1) for a tunnel boring machine, comprising: a housing (2) comprising two cavities (26) formed in opposite walls (20), and two clamping sets (3), configured to be removably mounted on either side of the roller cutter (10) in the housing (2), and each comprising: a base plate (32), and a centre wedge (34), movably mounted on the base plate (32), two side wedges (36), hinged between the base plate (32) and the centre wedge (34) between a retracted position and a clamping position, wherein the side wedges (36) transversely swing and enter into the cavity (26) facing the housing (2).