External door handle, in particular for vehicles

External door handle, especially for motor vehicles,

• with a stationary bracket (10) attached to the door (11);
• with a grip (20), supported pivotably on the bracket (10);
• with a lock mounted in the door (11), which lock can be switched between a locked and an unlocked position;
• where an actuation (24) of the grip (20) to open the door (11) is nonfunctional in the locked position but functional in the unlocked position;
• and
• with at least one capacitative electronic sensor circuit (28, 38), which is mounted directly or indirectly on the bracket (10) and which has a first electrode, which is located in the grip (20) and is active in the outside area of the external door handle;
• where the active surface (37) of this first electrode senses the approach of or contact by an authorized person and is therefore called the sensor surface (37);
• and
• where the authorized person carries with him an active or passive means of identification for access authorization and/or driving authorization for the vehicle;
• wherein
• at least one second electrode, which is connected to the electronic control circuit (28, 38), is provided on the bracket (10);
• in that
• the electronic sensor circuit (28, 38) builds up an electrical coupling field (50.1) at the active surface (35) of the second electrode in the interior of the external door handle, for which reason this active surface on the bracket side is called the exciter surface (35) for the coupling field (50.1);
• in that
• at least one third electrode, which is connected to the sensor surface (37) of the first electrode acting in the outside area of the external door handle, is mounted on the grip (20);
• in that
• the coupling field (50.1) acts on the active surface (36) of this third electrode, for which reason this active surface on the grip (20) is called the transfer surface (36) for the coupling field (50.1);
• and in that
• when the grip (20) is pivoted (24), the exciter surface (35) of the second electrode in the bracket (10) remains stationary, whereas the transfer surface (36) of the third electrode moves concomitantly with the handle (20).