Global Patent Index - EP 2108783 A3

EP 2108783 A3 20130313 - Cutting head base body and cutting head for a heading or a shearing machine and method for their production

Title (en)

Cutting head base body and cutting head for a heading or a shearing machine and method for their production

Title (de)

Schneidkopfgrundkörper sowie Schneidkopf für eine Vortriebs- oder Gewinnungsmaschine und Verfahren zu deren Herstellung

Title (fr)

Corps de base à tête de découpage et tête de découpage pour une machine de creusement ou d'extraction

Publication

EP 2108783 A3 20130313 (DE)

Application

EP 09155812 A 20090323

Priority

DE 102008001089 A 20080409

Abstract (en)

[origin: EP2108783A2] The base body has a cutting head core (7) and chisel holders (8) consisting a casting workpiece (2), where the chisel holders are molded by a casting mold (1) in a different manner. The cutting head core is designed in a hollow cylindrical shape, and the chisel holders are distributed extensively on an outer casing of the cutting head core. An intermediate ring is provided for the attachment of the cutting head core at adjacent machine parts. The chisel holders comprise recesses that are provided for holding of chisels. An independent claim is also included for a method for manufacturing a cutting head base body for a road heading machine or for a mining machine.

IPC 8 full level

E21C 25/10 (2006.01); E21C 25/18 (2006.01); E21C 27/22 (2006.01); E21C 35/18 (2006.01); E21C 35/19 (2006.01)

CPC (source: EP)

E21C 25/10 (2013.01); E21C 25/18 (2013.01); E21C 27/22 (2013.01); E21C 35/18 (2013.01); E21C 35/19 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA RS

DOCDB simple family (publication)

DE 102008001089 B3 20090806; EP 2108783 A2 20091014; EP 2108783 A3 20130313

DOCDB simple family (application)

DE 102008001089 A 20080409; EP 09155812 A 20090323