Synchronised latch system for thrust reverser blocker doors

In a thrust reverser of a turbofan engine comprising, in an annular section of an outer cowling, a plurality of movable doors (2, 3) which, in an inactive position during direct jet operation, close off passages separating rigid beams, there is provided, between two adjacent doors (2, 3), a locking system which allows quasi-simultaneous opening of the two doors (2, 3). This system comprises for each door (2, 3) at least one hook (6, 7) mounted pivotably on the fixed structure and driven in rotation by a pin (10) integral with the door (2, 3) between a locking position and an unlocking position, during the movement of opening and closing of the door. The two hooks (6, 7) of a system are linked in rotation by a mechanical linking member (8, 9), for example connecting rods, to prevent the unlocking of one door if the other door is closed.