Bung hole and tap assembly for small containers provided with at least one positioning and holding means

1. Bung hole and tap assembly for small flexible containers, in particular for food drinks, comprising: a bung hole ( 2 ) with a substantially planar bottom ring member having a bottom surface structurally configured to be welded onto a flexible bag forming a fluid tight seal and further provided with an external ring ( 22 ), the external ring which is disposed on the bung hole parallel to and spaced apart from the substantially planar bottom ring member and also spaced apart from a distal opening of the bung hole, is used for guiding and supporting the bung hole ( 2 ) and a tap for dispensing liquids inserted into the bung hole ( 2 ) and comprising an elongated tap body ( 1 ) for mounting of the tap into the bung hole ( 2 ) and for dispensing the liquid, wherein, on the bung hole ( 2 ), at least one means ( 3 ) is provided for positioning and holding the bung hole ( 2 ) on the container and in a machine for producing containers or wineskins and/or in a machine for filling and indexing the tap body ( 1 ) for mounting the tap in said bung hole ( 2 ) which means ( 3 ) comprises two flat surfaces extending in parallel on the external ring ( 22 ) of the bung hole ( 2 ) on the opposite side thereof designed to cooperate with a guiding means of a machine for producing and/or machine for filling.

2. Assembly according to claim 1 , characterized in that it is provided, in addition, with a means ( 4 ) for positioning and holding the tap body ( 1 ) for mounting the tap in the bung hole ( 2 ), which means is in the form of, on the one hand, at least one recess or point projection ( 11 ) provided on a shank ( 1 ′) of the tap body ( 1 ), and, on the other hand, at least one projection or point recess ( 21 ) provided in the bung hole ( 2 ), where these recesses and projections work in mutual cooperation in at least one mounting position of the shank ( 1 ′) of the tap body ( 1 ) in the bung hole ( 2 ).

3. Assembly according to claim 2 , characterized in that the shank ( 1 ′) of the tap body ( 1 ) presents several recesses ( 11 ) arranged on at least one annular projection ( 5 ), and the bung hole ( 2 ) is provided with the corresponding projection ( 21 ) in at least one annular groove ( 9 ).

4. Assembly according to claim 2 , characterized in that recesses ( 11 ) and projections ( 21 ) are provided on several annular projections ( 6 and 7 ) of the shank ( 1 ′) and in several annular grooves ( 8 and 9 ) of the bung hole ( 2 ), respectively.

5. Assembly according to claim 1 , characterized in that the external ring ( 22 ) is integrally formed with the bung hole ( 2 ) so as to be molded from a single piece of material.