EP 0755564 B1 19980701 - DEVICE FOR TENSIONING THE CUT-IN SPRING IN ACTUATOR UNITS FOR CIRCUIT BREAKERS, IN PARTICULAR VACUUM CIRCUIT BREAKERS
Title (en)
DEVICE FOR TENSIONING THE CUT-IN SPRING IN ACTUATOR UNITS FOR CIRCUIT BREAKERS, IN PARTICULAR VACUUM CIRCUIT BREAKERS
Title (de)
EINRICHTUNG ZUM SPANNEN DER EINSCHALTFEDER VON ANTRIEBSEINRICHTUNGEN FÜR ELEKTRISCHE LEISTUNGSSCHALTER, INSBESONDERE VAKUUMLEISTUNGSSCHALTER
Title (fr)
DISPOSITIF PERMETTANT DE TENDRE LE RESSORT DE MISE EN CONTACT DE SYSTEMES D'ENTRAINEMENT POUR SECTIONNEURS DE PUISSANCE, NOTAMMENT SECTIONNEURS DE PUISSANCE A VIDE
Publication
Application
Priority
- DE 4413191 A 19940412
- DE 19503679 A 19950130
- EP 9501232 W 19950404
Abstract (en)
[origin: WO9527992A1] The invention concerns a device for tensioning the cut-in spring in actuator units for circuit breakers, in particular vacuum circuit breaker, the cut-in spring (7) being designed as a tensioning spring which is in contact with a cam (2) mounted on the cut-in shaft (5) and which can be tensioned both by an electric motor (20) and by a hand-turned shaft (21) through a spur-gear train, the last spur gearwheel (1) also being mounted on the cut-in shaft (5). The aim of the invention is to design a tensioning device in which the spur-gear train operates without overrunning, and reversing of the cam (2) is prevented or limited by the cut-in spring (7). This is achieved by virtue of the fact that the last spur gearwheel (1) in the spur-gear train is disposed over an overrunning bearing (6) on the cut-in shaft (5) in such a way that, when cut-in spring tensioning begins, the cam (2) and hence also the cut-in shaft (5), are carried directly by the last spur gearwheel (1) out of a position in which they are located past the bottom dead centre position (9) of the shaft (5) as the cam (2) rotates upwards, while, during the cut-in phase, the last spur gearwheel (1) is locked in position, when the cut-in shaft (5) turns through bottom dead centre (9), by the overrunning bearing (6) and by the operative connection with the other spur gearwheels in the spur-gear train.
IPC 1-7
IPC 8 full level
F16H 35/00 (2006.01); H01H 3/22 (2006.01); H01H 3/30 (2006.01); H01H 33/40 (2006.01); H01H 33/66 (2006.01)
CPC (source: EP)
H01H 3/227 (2013.01); H01H 3/3021 (2013.01); H01H 33/666 (2013.01); H01H 2003/3084 (2013.01); H01H 2003/3094 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IE IT LI LU NL PT SE
DOCDB simple family (publication)
WO 9527992 A1 19951019; AT E167955 T1 19980715; AU 2215595 A 19951030; AU 690668 B2 19980430; BG 100891 A 19971031; BG 62542 B1 20000131; BR 9507461 A 19970902; CN 1047461 C 19991215; CN 1146256 A 19970326; CZ 276096 A3 19980812; CZ 288683 B6 20010815; DE 19580313 D2 19971016; DE 59502684 D1 19980806; DK 0755564 T3 19990412; EP 0755564 A1 19970129; EP 0755564 B1 19980701; ES 2120741 T3 19981101; FI 964093 A0 19961011; FI 964093 A 19961205; HU 220213 B 20011128; HU 9602642 D0 19961128; HU T75473 A 19970528; JP H09511611 A 19971118; MX 9604525 A 19971231; MY 114088 A 20020830; NO 964343 D0 19961011; NO 964343 L 19961128; NZ 283744 A 19980226; PL 176808 B1 19990730; PL 316755 A1 19970203; SK 122896 A3 19970604; SK 280118 B6 19990806; TW 272295 B 19960311
DOCDB simple family (application)
EP 9501232 W 19950404; AT 95915184 T 19950404; AU 2215595 A 19950404; BG 10089196 A 19961008; BR 9507461 A 19950404; CN 95192542 A 19950404; CZ 276096 A 19950404; DE 19580313 T 19950404; DE 59502684 T 19950404; DK 95915184 T 19950404; EP 95915184 A 19950404; ES 95915184 T 19950404; FI 964093 A 19961011; HU 9602642 A 19950404; JP 52605595 A 19950404; MX 9604525 A 19950404; MY PI19950917 A 19950410; NO 964343 A 19961011; NZ 28374495 A 19950404; PL 31675595 A 19950404; SK 122896 A 19950404; TW 84103488 A 19950411