EP 1084324 A1 20010321 - ROLLER BIT FOR TUNNEL-BORING MACHINES HAVING REPLACEABLE BIT POINTS
Title (en)
ROLLER BIT FOR TUNNEL-BORING MACHINES HAVING REPLACEABLE BIT POINTS
Title (de)
ROLLENMEISSEL FÜR TUNNELVORTRIEBSMASCHINEN MIT AUSWECHSELBAREN MEISSELSTIFTEN
Title (fr)
TREPAN A MOLETTES POUR MACHINES DE CREUSEMENT DE TUNNEL A POINTES DE TREPAN REMPLA ABLES
Publication
Application
Priority
- DE 19821390 A 19980513
- EP 9903202 W 19990510
Abstract (en)
[origin: DE19821390A1] The segments (2) of the cutting ring (1) are arranged in specific position on the roller basic body by means of a profile connection, e.g. a dovetail guide and adjustment springs. The segments of the cutting ring are connected with the roller basic body by screwable segment retainers. The segments can also be connected with the roller basic body by clamp nuts. The cutting components (3) are formed as chisels with a head and a shaft (11), the shaft being held in a recess (12) of the cutting ring, shaft and recess being provided with matching threads.
IPC 1-7
IPC 8 full level
E21B 10/10 (2006.01); E21B 10/12 (2006.01); E21B 10/20 (2006.01); E21B 10/52 (2006.01); E21D 9/10 (2006.01)
CPC (source: EP)
E21B 10/10 (2013.01); E21B 10/20 (2013.01); E21B 10/52 (2013.01)
Citation (search report)
See references of WO 9958808A1
Designated contracting state (EPC)
AT CH DE FR IT LI
DOCDB simple family (publication)
DE 19821390 A1 19991125; AU 4141199 A 19991129; EP 1084324 A1 20010321; JP 2002514702 A 20020521; WO 9958808 A1 19991118; ZA 993212 B 20020812
DOCDB simple family (application)
DE 19821390 A 19980513; AU 4141199 A 19990510; EP 9903202 W 19990510; EP 99924927 A 19990510; JP 2000548583 A 19990510; ZA 993212 A 19990510