Global Patent Index - EP 1135845 B8

EP 1135845 B8 20050914 - POWER ACTUATOR HAVING AN ELECTROMAGNETIC CLUTCH ASSEMBLY

Title (en)

POWER ACTUATOR HAVING AN ELECTROMAGNETIC CLUTCH ASSEMBLY

Title (de)

HILFSANTRIEB MIT EINER ELEKTROMAGNETISCHEN KUPPLUNGSEINHEIT

Title (fr)

ACTIONNEUR MOTORISE POURVU D'UN EMBRAYAGE ELECTROMAGNETIQUE

Publication

EP 1135845 B8 20050914 (EN)

Application

EP 99957788 A 19991202

Priority

  • CA 9901150 W 19991202
  • US 11072898 P 19981203

Abstract (en)

[origin: WO0033445A1] The present application discloses a power actuator for a latch assembly. The power actuator has a motor (70) having a rotatable motor output member (94) and a clutch assembly (50). The clutch assembly has a rotatable clutch output member (48). A stamped, cup-shaped ferromagnetic coil casing (126) has a generally radially extending base wall and an annular side wall extending generally axially from the base wall. An annular ferromagnetic flux intensifying washer (160) is positioned adjacent to the base wall of the coil casing. An annular coil of electroconductive material is operable to selectively generate a magnetic field. The coil (112-118) is disposed within the casing with the side wall extending in surrounding relation with respect to the coil such that the field generated by the coil flows generally radially through the base wall and generally axially through said side wall. A ferromagnetic armature (120) is in sliding relation with the annular coil and movable between (a) an engaged position wherein the armature couples the motor output member and the clutch output member together so that energization of the motor rotatably drives the clutch output member and (b) a disengaged position wherein the motor output member and the clutch output member are uncoupled to enable the clutch output member to rotate without resistance from the motor. Selective energizing of the coil effects movement of the armature between the engaged and disengaged positions thereof.

IPC 1-7

H02K 7/116; B60J 5/06; F16D 27/118

IPC 8 full level

F16D 27/118 (2006.01); H02K 7/116 (2006.01); F16H 1/20 (2006.01); H02K 7/108 (2006.01)

CPC (source: EP)

F16D 27/118 (2013.01); H02K 7/1163 (2013.01); F16H 1/203 (2013.01); H02K 7/1085 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 0033445 A1 20000608; AT 299619 T 20050715; AU 1540600 A 20000619; BR 9915954 A 20020213; BR 9915954 B1 20120110; CA 2353472 A1 20000608; CA 2353472 C 20080205; DE 69926143 D1 20050818; DE 69926143 T2 20060427; EP 1135845 A1 20010926; EP 1135845 B1 20050713; EP 1135845 B8 20050914; US 6237737 B1 20010529

DOCDB simple family (application)

CA 9901150 W 19991202; AT 99957788 T 19991202; AU 1540600 A 19991202; BR 9915954 A 19991202; CA 2353472 A 19991202; DE 69926143 T 19991202; EP 99957788 A 19991202; US 45369099 A 19991203