EP 0651409 B1 19970910 - Spring drive for switchgear
Title (en)
Spring drive for switchgear
Title (de)
Federantrieb für ein Schaltgerät
Title (fr)
Entraînement à ressort pour un appareil de commutation
Publication
Application
Priority
EP 93117797 A 19931103
Abstract (en)
[origin: EP0651409A1] The spring drive for an electrical switching device has a connection shaft to which a connection spring is eccentrically coupled and on which the large wheel (16) is seated in a rotationally fixed manner. A small wheel (20), which is driven in order to stress the connection spring, interacts with said large wheel (16). The tooth system (52) of the large wheel (16) has a gap (54) in order to decouple the pair of wheels (18) when the connection spring is stressed. In order to connect the switching device, the large wheel (16) is driven in the rotation direction (D), as a result of which the tooth system (52) engages with the small wheel (20) again. In order to prevent the wheels locking up when they engage in one another, the teeth (60) of the small wheel (20) are designed in such a manner that the edges (56,58) abut against one another, radially on the outside, at a common edge (62). <IMAGE>
IPC 1-7
IPC 8 full level
B23F 15/00 (2006.01); F16H 55/08 (2006.01); H01H 3/30 (2006.01); H01H 3/40 (2006.01); H01H 33/42 (2006.01); H01H 3/36 (2006.01)
CPC (source: EP US)
H01H 3/30 (2013.01 - EP US); H01H 3/36 (2013.01 - EP US); H01H 2003/3063 (2013.01 - EP US); H01H 2003/3084 (2013.01 - EP US); Y10T 74/19972 (2015.01 - EP US)
Designated contracting state (EPC)
AT CH DE FR GB IT LI SE
DOCDB simple family (publication)
EP 0651409 A1 19950503; EP 0651409 B1 19970910; AT E158105 T1 19970915; DE 59307350 D1 19971016; JP 3605620 B2 20041222; JP H07211176 A 19950811; US 5595287 A 19970121
DOCDB simple family (application)
EP 93117797 A 19931103; AT 93117797 T 19931103; DE 59307350 T 19931103; JP 29583494 A 19941104; US 32865094 A 19941025