Locking system for a door leaf of a motor vehicle comprising a handle of the flush type

A locking system for a door leaf of a motor vehicle, the locking system comprising:

• a bracket adapted to be fastened on the door leaf;
• a gripping lever comprising a gripping element, the gripping lever being movably mounted in rotation relative to the bracket about a first axis of rotation between at least one rest position in which the gripping element is flush with an outer face of the door leaf, an active position in which the gripping element protrudes with respect to the outer face of the door leaf, and an opening position in which the gripping lever unlocks the door leaf;
• a transmission lever having a first blocking face and a second blocking face, the transmission lever being pivotally mounted relative to the bracket about a second axis of rotation perpendicular to the first axis of rotation of the gripping lever, between a rest position and an actuation position in which the transmission lever actuates opening of a lock of the door leaf, the transmission lever being driven in rotation by the gripping lever;
• a first reversible inertial safety system mounted on the bracket and including a first rocker having a first inertial mass and a first biasing member, the first rocker including a first blocking finger pivotally mounted about a third pivot axis perpendicular to the second axis of rotation of the transmission lever, between a rest position and a temporary blocking position in which the first blocking finger inhibits rotation of the transmission lever in an impact event, and is configured to be reversed from the temporary blocking position back toward the rest position by the first biasing member;
• and
• a second irreversible inertial safety system mounted on the bracket and including a second rocker having a second inertial mass, the second rocker including a second blocking finger pivotally mounted about a fourth pivot axis parallel to the third pivot axis of the first rocker, between a rest position and a blocking position in which the second blocking finger is definitively positioned to inhibit rotation of the transmission lever in the impact event.