EP 0773380 B1 19981209 - Power driven head for boring rods
Title (en)
Power driven head for boring rods
Title (de)
Kraftdrehkopf zum kopfseitigen Antreiben eines Bohrgestänges eines Bohrgerätes
Title (fr)
Tête de rotation entraînée pour tiges de sondage
Publication
Application
Priority
DE 29517762 U 19951109
Abstract (en)
[origin: EP0773380A1] The force rotation head has a reduction gearing driven via a hydromotor via an intermediate clutch (2), with the hydromotor enclosed by a housing (5) in the vicinity of the clutch, formed by two elastically coupled rings (10,11) secured to the housing of the reduction gearing. The clutch uses elastic torque transfer elements acting between clutch claws and preferably made of a polyurethane with a hardness between 89 and 95 Shore-A, coupled together by an inner ring of the same polyurethane material.
IPC 1-7
IPC 8 full level
B23B 47/00 (2006.01); E21B 3/035 (2006.01); F16D 3/56 (2006.01)
CPC (source: EP)
E21B 3/035 (2013.01)
Designated contracting state (EPC)
AT CH DE FR GB LI NL
DOCDB simple family (publication)
EP 0773380 A1 19970514; EP 0773380 B1 19981209; AT E174410 T1 19981215; DE 29517762 U1 19960104; DE 59600958 D1 19990121
DOCDB simple family (application)
EP 96101569 A 19960203; AT 96101569 T 19960203; DE 29517762 U 19951109; DE 59600958 T 19960203