Key switch for installation in a drive device and method for...

G - Physics – 07 – C

Patent

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Details

G07C 9/00 (2006.01) B60R 25/00 (2006.01) E05B 49/00 (2006.01)

Patent

CA 2706210

The invention relates to key switches (15) for drive devices having key recognition means (30) for recognizing a key (13) having key bit (13.1) and having a key receptacle for inserting the key bit (13.1). The key recognition means (30) operate without contact and have corresponding scanning means (32) for scanning at least part of the key bit (13.1). The scanning means (32) deliver actual values of a key (13). Storage means (31) are provided in order to store comparison values of a key (13) in an initialization phase. An electronic comparator (33) is provided, which compares actual values to comparison values and causes a release if the actual values and comparison values agree.

La présente invention concerne un interrupteur à clé pour un dispositif de conduite comprenant des éléments de reconnaissance de clé (30), pour reconnaître une clé (13), comprenant un panneton (13.1) et un emplacement de clé pour insérer le panneton (13.1). Les moyens de reconnaissance de clé (30) fonctionnent sans contact et disposent de moyens de balayage correspondants (32) pour balayer au moins une partie du panneton (13.1). Les moyens de balayage (32) fournissent des valeurs réelles d'une clé (13). Des moyens de stockage (31) sont prévus pour enregistrer les valeurs de comparaison d'une clé (13) lors de la phase d'initialisation. Un comparateur électronique (33) est prévu pour comparer les valeurs réelles avec des valeurs de comparaison et provoque une libération, en cas de correspondance entre les valeurs réelles et les valeurs de comparaison.

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