Electronic flat key

Abstract

The invention relates to an electronic flat key having a grip element (2) and a key bit (3), the grip element (2) including a casing (4) in which are arranged an electronic switching device (12) for remote operation of a lock or locking system and a holder (16) for at least one battery (17) for supplying power to the switching device, the grip element casing (4) including two side elements (5, 6) constructed in the form of shells, and the key bit (3) being arranged on the grip element casing (4) in a manner enabling it to be swiveled from a retracted position, in which it is situated in a lateral well (10) in the grip element casing (4), into an extended position. In order for the grip element casing (4) to also consist of metallic side elements (5, 6) constructed in the form of shells, without this substantially affecting (electrically shadowing) the transmitting and/or receiving elements located in the casing (4) for remote operation or a lock or locking system, the invention proposes that between the two side elements (5,6) of the grip element casing (4), which are made of metal and are constructed in the form of shells, there is arranged a central element (7) of frame-like construction which is made of a material that does not conduct electricity, which extends peripherally at least in sub-portion (8) of the grip element casing (4) as far as the outer surface (9) of the casing (4) and is sufficient for conveying an adequate signal between the transmitting and/or receiving elements located in the grip element casing (4) and those located in the lock zone or locking system zone.

Dependencies are inferred from the claim text.