Immobilizer for shopping trolleys

Details Immobilizer for shopping trolleys Immobilizer for shopping trolleys

B - Operations, Transporting

62

B

B62B 5/04 (2006.01) B62B 3/14 (2006.01)

Patent

CA 2597238

Disclosed is a principle for alternately activating and deactivating a blocking device by means of a magnetic field. A further developed embodiment of the invention is characterized in that the deactivating magnetic field can be smaller than the activating magnetic field.

L'invention concerne un système de blocage d'un chariot faisant intervenir le principe de l'activation et désactivation alternées d'un système de blocage au moyen d'un champ magnétique. Le système selon l'invention est caractérisé en ce que le champ magnétique de désactivation peut être inférieur au champ magnétique d'activation.

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