US 6,982,391 B2
Safety position switch
Hugues Da Dalt, Champniers (France)
Assigned to Schneider Electric Industries SAS, Rueil-Malmaison (France)
Filed on Nov. 17, 2004, as Appl. No. 10/989,329.
Claims priority of application No. 03 13651 (FR), filed on Nov. 21, 2003.
Prior Publication US 2005/0109593 A1, May 26, 2005
Int. Cl. H01H 27/00 (2006.01)
U.S. Cl. 200—43.04 15 Claims
OG exemplary drawing
 
1. Safety position switch comprising, in a casing:
a push rod which responds to movement of an actuator connected to a device to be made safe, in such a way as to become displaced along a main axis in order to assume a rest position and a working position,
an electrical device switchable according to the position of the push rod, by means of a lockable transmission mechanism actuated by the push rod,
a device (20) for locking the transmission mechanism, said locking device having a head for locking the transmission mechanism, capable of assuming a locked position and an unlocked position,
characterized in that:
the transmission mechanism comprises a pivoting lever capable of assuming a locked position and an unlocked position,
the pivoting lever has a force applied to the lever from the push rod such that a movement of translation of the push rod generates a rotation of the lever,
the pivoting lever is provided with a jamming element that is applicable, in the locked position of the lever and transversely with respect to the main axis, against the locking head.