Safety capsule for a container

1. A safety capsule for a container, comprising:

i) a cap ( 2 ) for closing the container, said cap ( 2 ) being made of a plastic material and comprising a thread ( 20 ) for connection to the container;

ii) a cover ( 3 ) for said cap ( 2 ), said cover ( 3 ) comprising a base ( 30 ) and a lateral wall ( 31 ) that extends from said base ( 30 ); said base ( 30 ) and said lateral wall ( 31 ) overlying said cap ( 2 ), said base ( 30 ) being at the opposite end with respect to a zone ( 4 ) of the capsule in which an intactness band ( 8 ) is located; the intactness band ( 8 ) being designed to be connected with the container;

iii) a press-fit engagement means ( 5 ) that sets said cap ( 2 ) and said cover ( 3 ) into operative communication, enabling transmission of motion from the cover ( 3 ) to the cap ( 2 ) for a purpose of making it possible to unscrew said cap ( 2 );

iv) means ( 6 ) for preventing extraction of the cover ( 3 ) from the cap ( 2 ), comprising a first connecting means ( 61 ) for connecting the cover ( 3 ) to the cap ( 2 ); said engagement means ( 5 ) and said first connecting means ( 61 ) being at least partly incorporated in said cap ( 2 ) and cover ( 3 );

v) means for re-closing the cap on the container after it has been opened, comprising:

at least a first flexible tab ( 23 ) incorporated in the cap ( 2 ) and projecting towards the lateral wall ( 31 ) of the cover ( 3 ); said first tab ( 23 ) surmounting a first part of the cap ( 2 ), a first concavity ( 24 ) being wedged between the first tab ( 23 ) and said first part of the cap ( 2 );

a second flexible tab ( 32 ) projecting from the lateral wall ( 31 ) of the cover ( 3 ) towards the cap ( 2 ); the second tab ( 32 ) surmounting one zone of the lateral wall ( 31 ) of the cover, a second concavity ( 33 ) being wedged between said second tab ( 32 ) and said zone of the lateral wall ( 31 );

a first direction of rotation of the cover ( 3 ) determining a simultaneous insertion of the first tab ( 23 ) in the second concavity ( 33 ) and an insertion of the second tab ( 32 ) in the first concavity ( 24 ) so as to enable the transmission of motion from the cover ( 3 ) to the cap ( 2 ), and the cap ( 2 ) to be screwed onto the container as a result;

a second direction of rotation of the cover ( 3 ) determining a sliding of the first tab ( 23 ) over the second tab ( 32 ).

2. The capsule according to claim 1 , characterized in that said cap ( 2 ) comprises a flank ( 26 ) that faces the lateral wall ( 31 ) of the cover ( 3 ), said flank ( 26 ) and said lateral wall ( 31 ) being without additional extraction prevention means that keep the cover connected to the cap.

3. The capsule according to claim 1 , characterized in that said cover ( 3 ) is made of polypropylene.

4. The capsule according to claim 1 , characterized in that:

the first tab ( 23 ) forms an angle of less than 50° with a surface of the cap ( 2 ) wherefrom it extends, so as to define the first concavity ( 24 );

the second tab ( 32 ) defines an angle of less than 50° with the lateral wall ( 31 ) of the cover ( 3 ), so as to define the second concavity ( 33 ).

5. The capsule according to claim 1 , characterized in that a predominant extension of the first and the second tabs ( 23 , 32 ) is along a direction perpendicular to said base ( 30 ) of the cover ( 3 );

the second tab ( 32 ) involving more than half of the height of the lateral wall ( 31 ) of the cover ( 3 );

said first tab ( 23 ) involving more than half of the height of the cap ( 2 ).

6. The capsule according to claim 1 , characterized in that the cap ( 2 ), at the opening of the first concavity ( 24 ), comprises a ridge ( 91 ) that extends towards the cover ( 3 ) so as to counteract possible bending of the second tab ( 32 ) as it is being pushed by the first tab ( 23 ).

7. The capsule according to claim 1 , characterized in that said cap ( 2 ) comprises a plurality of convex elements ( 28 ) that project towards said lateral wall ( 31 ) and that function as lateral cover-cap spacers.

8. The capsule according to claim 1 , characterized in that said first connecting means ( 61 ) comprises:

a first protrusion ( 611 ) that projects from the lateral wall ( 31 ) of the cover ( 3 ) towards said cap ( 2 ), said first protrusion ( 611 ) comprising a first ring ( 610 ) that is seamless;

a first abutment ( 21 ) of said first protrusion ( 611 ), said first abutment being incorporated in the cap ( 2 ) and interposed between said first protrusion ( 611 ) and the base ( 30 ).

9. The capsule according to claim 1 , characterized in that said intactness band ( 8 ) is connected to remaining parts of the cap ( 2 ) by means of flexible bridges, said intactness band ( 8 ) comprising a strip ( 29 ) and a plurality of projections ( 82 ), which:

are separated from each other and extend from the strip ( 29 ) in succession side by side along a circumferential line;

project towards the inside of the capsule ( 1 ) and together with the strip ( 29 ), define a step ( 290 ) that identifies a seat ( 291 ) for housing part of the container.

10. The capsule according to claim 1 , characterized in that the cap ( 2 ) comprises

the intactness band ( 8 ) which is designed to be connected with the container; in a configuration wherein the band ( 8 ) is intact, said cap ( 2 ) being a single monolithic body.