Assembly device between an applicator assembly and a head of a bottle

1. An assembly device between an applicator assembly and a head of a bottle, the applicator assembly comprising:

at least two sub-assemblies of parts comprising an outer sub-assembly and an inner sub-assembly, the inner sub-assembly being mobile in translation in the outer sub-assembly, along a main direction combined with the main longitudinal extension direction of the outer sub-assembly, along a course limited by blocking means embedded in connection with the outer sub-assembly;

wherein the assembly device is configured to occupy three positions:

a closing/locking position of the applicator assembly on the head of the bottle,

an in-use position of the applicator assembly, wherein the applicator assembly is not in contact with the head of the bottle, and

an intermediate position, wherein the inner sub-assembly is free to slide inside the outer sub-assembly, in particular between two blocking means of the outer sub-assembly;

wherein moving from the closing/locking position to the intermediate position, and then from the intermediate position to the in-use position, is carried out by actuation of the outer sub-assembly, along said main direction, according to a single pulling.

2. The assembly device according to the claim 1 , wherein the moving from one to the other of the positions of the assembly device is not accompanied by the actuation of any elastic means.

3. The assembly device according to claim 1 , wherein the maintaining in the closing/locking position of the applicator assembly on the head of the bottle is carried out via cooperation of shapes between a portion of the inner sub-assembly having at least one claw and a portion of the head of the bottle having at least one groove.

4. The assembly device according to claim 1 , wherein maintaining in the closing/locking position of the applicator assembly on the head of the bottle is provided by a locking part which has a finger of material adapted to block the claw in the groove by wedging said finger between the claw and the inner wall of the outer sub-assembly.

5. The assembly device according to claim 4 , wherein the outer sub-assembly and the locking part form one single mechanical part and are made from the same material.

6. The assembly device according to claim 1 , wherein in the in-use position, the relative movement of the inner sub-assembly in the outer sub-assembly is blocked by interference of a retaining means of the inner sub-assembly by an abutment of the outer sub-assembly.

7. The assembly device according to claim 6 , wherein the retaining means of the inner sub-assembly is a bead of material protruding from the inner sub-assembly while the abutment protrudes from the inner wall of the outer sub-assembly, said bead and abutment being excrescences of material intended to maintain the assembly device in the in-use position by a frictional force, said frictional force being initiated in at least one of the points of contact between said bead and said abutment.

8. The assembly device according to claim 1 , further comprising a wiper adapted for mounting in the head of the bottle and an applicator of a cosmetic product adapted for mounting at the end of a rod belonging to the inner sub-assembly, said rod having a configuration such that, when the assembly device is in the closing/locking position, said applicator is plunged inside a bottle from which comes said head of the bottle.

9. The assembly device according to claim 8 , wherein the seal of said assembly device with regards to the outside when the assembly device is in the closing/locking position is ensured by crushing a portion of said wiper between the head of the bottle and a hollow portion of the inner sub-assembly, in particular with a bottom of the hollow portion of the inner sub-assembly.