Patent ID: 8070194

Claim:
A mechanism for fitting a lock-operating handle ( 150 ) with which the opening panel of a door ( 100 ) is equipped, which is mounted such that it can turn, in a first direction, from a rest position toward which the handle ( 150 ) is elastically returned, the mechanism comprising a spindle ( 17 ) for turning the lock and which extends axially at right angles to the plane of the opening panel of the door ( 100 ), and an arrangement mounted on the handle ( 150 ) capable of accepting the operating spindle ( 17 ) in order to turn it and which comprises a first assembly (E 1 ) which is designed to be fixed and immobilized axially on the operating spindle ( 17 ), and a second assembly (E 2 ) incorporated into a hub ( 24 ) of the handle ( 150 ), the first (E 1 ) and second (E 2 ) assemblies being joined together by means of a bayonet fitting, the first assembly (E 1 ) comprising a portion ( 16 ) which is mounted such that it turns with the operating spindle ( 17 ), the first assembly further comprising lugs ( 18 ), a mounting ring ( 12 ), a spring ( 14 ), and a sealing washer ( 10 ), the second assembly (E 2 ) comprising, for each lug ( 18 ), an L-shaped slot ( 60 ) comprising an axial slideway ( 38 ) and an arc-shaped branch ( 61 ) so that an axial translational movement, followed by a rotational movement, allow the lug ( 18 ) to engage in the associated slot ( 60 ) to effect said bayonet fitting, wherein each arc-shaped branch ( 61 ) of the slot ( 60 ) comprises an end-of-engagement-travel stop ( 28 ) against which the associated lug ( 18 ) bears, and a retractable stop ( 30 ) to prevent the associated lug ( 18 ) from rotating in the arc-shaped branch ( 61 ), and wherein the retractable stop ( 30 ) is a stop that can be elastically deformed in order to allow the handle ( 150 ) to be removed by turning it in said second direction of rotation.