Global patent index - EP 0933794 A3

EP 0933794 A3 2000-01-12 - Electric safety switch

Title (en)

Electric safety switch

Title (de)

Elektrischer Sicherheitsschalter

Title (fr)

Interrupteur de sécurité électrique

Publication

EP 0933794 A3 (EN)

Application

EP 99101984 A

Priority

IT VI980017 A

Abstract (en)

[origin: EP0933794A2] A safety electric switch, comprising a casing (2,3,4) with at least two slots (18, 19) for the insertion of a key actuator (20) of pre-defined shape, at least one pair of electric contacts (5,5', 6,6',7,7',8,8') disposed in the casing (3) and displaceable between a closed and an open position, a cam (15) mounted inside the casing (4) and operatively connected to the contacts to promote their movement and commutation, the cam being rotatable around a first axis (H) by insertion of the actuator in the casing, blocking means (22) adapted to prevent rotation of the cam (15) and the consequent displacement of the contacts, elastic means (23) acting on the blocking means (22) to maintain them in a cam blocking position when the actuator is disinserted from the casing. The blocking means (22) comprise at least one lever element (24,24') pivoted about a second axis (K) distal from the first axis (H) and positioned so as to act on one side face of the cam (15). The second pivot axis (K) is substantially parallel to the cam pivot axis (H). <IMAGE>

IPC 1-7 (main, further and additional classification)

H01H 27/00

IPC 8 full level (invention and additional information)

H01H 27/00 (2006.01)

CPC (invention and additional information)

H01H 27/002 (2013.01); H01H 2027/005 (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

EPO simple patent family

EP 0933794 A2 19990804; EP 0933794 A3 20000112; EP 0933794 B1 20010919; DE 69900290 D1 20011025; DE 69900290 T2 20020926; IT VI980017 A1 19990802; IT VI980017 D0 19980202

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