Fixing for work tool on tunneling machine comprises support on machine mounting surface determining with tool three fitting zones formed by male and female parts

摘要

The fixing for a work tool (10) comprises a support (30) fixed on a machine mounting surface (2) determining with the tool three fitting zones (A,B,C), each formed by a female part carried by the support and a male part carried by the tool, and a work tool support zone (D) on the support. There is a tool position retaining element (50). An INDPENDENT CLAIM is included for a tunneling machine