EP 1062721 A1 20001227 - ACTUATOR HAVING IMPROVED ACCURACY
Title (en)
ACTUATOR HAVING IMPROVED ACCURACY
Title (de)
BETÄTIGUNGSVORRICHTUNG MIT VERBESSERTER GENAUIGKEIT
Title (fr)
ACTIONNEUR A PRECISION RENFORCEE
Publication
Application
Priority
- NL 9900139 W 19990312
- NL 1008593 A 19980313
Abstract (en)
[origin: WO9946847A1] An actuator comprises a housing (1, 10), a motor, an actuating member and a screw mechanism providing a linear movement of the actuating member with respect to the housing (1, 10) in response to a rotational movement of the motor, said screw mechanism comprising a screw (5, 16) and a nut (1, 17) at least one of which is rotatably supported with respect to the housing (1, 10) by means of a rolling element bearing (2, 11), said rolling element bearing (2, 11) having an inner raceway (6) and an outer raceway (6), as well as rolling elements which are in rolling contact with said raceways. At least one of the components of the screw mechanism, e.g. the screw (5, 16), nut (1, 17) or rollers (4, 16) and/or at least a component of the bearing (2, 11), e.g. the inner bearing ring or the outer bearing ring, comprises a surface part which is manufactured by means of a hard cutting operation, e.g. hard turning, hard milling, hard drilling, etc.
IPC 1-7
IPC 8 full level
F16D 65/14 (2006.01); F16D 65/18 (2006.01); F16D 65/21 (2006.01); F16H 25/20 (2006.01); H02K 7/06 (2006.01)
CPC (source: EP KR)
F16D 65/18 (2013.01 - EP); H02K 7/06 (2013.01 - EP KR); F16D 2121/24 (2013.01 - EP); F16D 2125/40 (2013.01 - EP); F16D 2125/52 (2013.01 - EP); F16H 25/2252 (2013.01 - EP)
Citation (search report)
See references of WO 9946847A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 9946847 A1 19990916; AU 2962999 A 19990927; CN 1296660 A 20010523; EP 1062721 A1 20001227; JP 2002506954 A 20020305; KR 20010041863 A 20010525; NL 1008593 C2 19990914
DOCDB simple family (application)
NL 9900139 W 19990312; AU 2962999 A 19990312; CN 99804977 A 19990312; EP 99910863 A 19990312; JP 2000536127 A 19990312; KR 20007010157 A 20000914; NL 1008593 A 19980313