Lock cylinder having a resetting block

Method for operation of a lock cylinder or a wheel lock with at least one ignition starter switch at a vehicle with a cylinder core which is at least pivotably accepted in a cylinder housing

• wherein in the cylinder core at least one blocking member is intended which in a blocking position prevents a rotation of the cylinder core in the cylinder housing and in a releasing position releases a rotation in the cylinder housing and
• wherein a key channel extents through the cylinder core in which a key is insertable and with which the blocking member is movable between the blocking position and the releasing position and
• wherein by the cylinder core at least two rotation positions can be occupied, namely an off-position and a starting position wherein in the off-position the key is insertable and detractable in the key channel and in the starting-position at least one appliance, particularly a starter;
• of the vehicle can be switched on,
• characterized in that
• a particularly mechanical resetting block is existent which prevents a resetting of the cylinder core at least from the starting position to the off-position by a particularly simple rotation of the cylinder core;
• the resetting block comprises an adjustable blocking element which in a blocking position mechanically blocks the rotation of the cylinder core from the driving position into the off-position and in a releasing position releases the rotation of the cylinder core into the off-position;
• the adjustable blocking element comprises a peak and a backward edge, a movable part of the resetting block is mechanically engageable with the backward edge, and a stationary part of the resetting block further comprises a blocking path for receiving the peak;
• wherein, in the blocking position;
• the peak is form-fittingly received in the blocking path, and, in the releasing position, the form-fit of the peak in the blocking path is repealed, and wherein movement of the peak from the blocking path is in a linear direction;
• the following steps are intended for the operation of the lock cylinder:
• a) a switching-on rotation of the cylinder core occurs by the appropriate key from the off-position via at least an ACC-position or a driving position into the starting position,
• b) a simple backward rotation of the cylinder core by the key in the off-position is blocked by the form-fitting insertion of the peak in the blocking path, particularly in the previous ACC-position,
• c) a manual actuation of the resetting block, particularly by an actuation of an actuation element of the resetting block, enables retraction of the peak from the blocking path in a linear direction, and thereby enables a released backward rotation of the cylinder core by the key in the off-position, particularly in the previous ACC-position.