Abstract: An escapement is disclosed which includes pallets, a roller and a pin fastened to the roller, intended to cooperate with one another. The pallets have no guard pin and include a pallet fork intended to cooperate with the pin and the roller and including first and second horns delimiting an entry of the pallet fork. The roller has an anti-overbanking wall in which a notch is formed, in a region adjacent to the pin. The pallets, the roller and the pin are conformed and dimensioned in such a manner that, in the service position, the anti-overbanking wall is able to define an abutment for the first and second horns, and each of the horns is able to penetrate to the interior of the notch exclusively when the pin is at least partly situated in the entry of the pallet fork.

Abstract: A door assembly in which an elastomeric roller, carried by a door, rolls against a latch member to pivot the latch member in one direction until the roller reaches a detent and then pivots in an opposite direction to lock the roller in the detent and the door in a closed position. The door is opened by pivoting the latch member in the first direction to release the roller from the detent.