Immobilizer for shopping carts

Details Immobilizer for shopping carts Immobilizer for shopping carts

B - Operations, Transporting

60

B

B60B 33/00 (2006.01) B62B 3/14 (2006.01) B62B 5/04 (2006.01) B63B 5/04 (2006.01)

Patent

CA 2653000

Immobilizer for shopping trolleys which is activated and deactivated by means of magnetic forces, in which lower forces are required to deactivate the immobilizer than to activate it. This makes it possible for the immobilizer to be deactivated both by a ~strong~ magnetic strip, such as is used for activation, and by a ~weak~ magnetic strip. The ~strong~ magnetic strip is located at the boundary of the permissible region, and one or more ~weak~ magnetic strips are located within the permissible region in order to activate immobilizers which are located within the permissible region and are still activated for some reason or another.

Dispositif d'immobilisation pour chariot de supermarché pouvant être activé et désactivé par des forces magnétiques, étant entendu que pour la désactivation du dispositif d'immobilisation, il faut déployer moins de forces magnétiques que pour son activation. Ainsi le dispositif d'immobilisation peut aussi bien être désactivé par une 'forte' barre magnétique, telle qu'utilisée pour l'activation, que par une 'faible' barre magnétique. La 'forte' barre magnétique se situe à la limite de la zone admissible, une ou plusieurs 'faibles' barres magnétiques se situant à l'intérieur de la zone admissible, afin d'activer les dispositifs d'immobilisation qui se trouvent à l'intérieur de la zone admissible et qui, pour une raison quelconque, sont encore activés.

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