Cartridge and multicomponent cartridge
View Patent ↗A cartridge is provided having at least one reception chamber ( 2 ), which extends in the longitudinal direction, for a medium to be dispensed, having a head part ( 4 ), a base part ( 6 ) and a cartridge wall ( 3 ) which bound the reception chamber ( 2 ), with the head part ( 4 ) having an outlet ( 5 ) for the medium. The cartridge wall ( 3 ) is designed as a film ( 3 ), the head part ( 4 ) and the base part ( 6 ) in each case as fixed shape parts and the head part ( 4 ) is sealingly and non-releasably connected to the cartridge wall ( 3 ). A multicomponent cartridge is furthermore provided by the invention.
1. A cartridge comprising:
at least one reception chamber extending in a longitudinal direction, and being configured to dispense a medium, the reception chamber having a head part, a base part and a cartridge wall bounding the reception chamber,
the head part having an outlet for the medium,
the cartridge wall being defined by a film and the head part and the base part being respective fixed shape parts, the head part being sealingly, non-releasably and integrally connected to the film that defines the cartridge wall; and
a separate protective film at an end of the reception chamber that is bounded by the head part, the separate protective film being configured to sealingly close the reception chamber at the end of the reception chamber, and extending over the entire end of the reception chamber and up to the cartridge wall defined by the film.
2. The cartridge in accordance with claim 1 , wherein
the cartridge wall has a maximum wall thickness of 0.3 mm.
3. The cartridge in accordance with claim 1 , wherein
the film defining the cartridge wall is a multilayer system.
4. The cartridge in accordance with claim 3 , further comprising
a connection device configured to connect the cartridge to a second cartridge.
5. The cartridge in accordance with claim 1 , wherein
the base part includes a piston configured to be introduced into the reception chamber at an end remote from the head part and is sealingly displaceable along the cartridge wall in the longitudinal direction.
6. The cartridge in accordance with claim 5 , further comprising
a fixed shape supporting ring surrounding the cartridge wall at the end of the reception chamber configured to receive the piston from the outside.
7. The cartridge in accordance with claim 1 , further comprising
a sealingly closing end film disposed at the base part.
8. The cartridge in accordance with claim 6 , wherein
one of the base part and the supporting ring is sealingly and integrally connected to the cartridge wall.
9. A multicomponent cartridge comprising
at least two cartridges, each cartridge being configured in accordance with the cartridge of claim 1 , the two cartridges being arranged next to one another with respect to the longitudinal direction.
10. The multicomponent cartridge in accordance with claim 9 , wherein
the two cartridges are fixedly coupled to one another via a connection device.
11. The multicomponent cartridge in accordance with claim 9 , wherein
outlets of the cartridges are one of a common connection piece and being configured to receive the common connection piece, the connection piece being configured to cooperate with an accessory part.
12. The multicomponent cartridge in accordance with claim 11 , further comprising
a closure part configured to cooperate with the connection piece, the closure part having two plugs each of which are configured to engage into the outlet of one of the cartridges so as to close the outlet.
13. The multicomponent cartridge in accordance with claim 9 , wherein
the reception chambers of the two cartridges have different volumes.
14. The cartridge in accordance with claim 1 , wherein
the cartridge wall is defined only by the film.
15. The cartridge in accordance with claim 2 , wherein
the cartridge wall has a wall thickness of 0.1 mm.
16. The cartridge in accordance with claim 11 , wherein
the connection piece is configured to cooperate with one of a closure part and a mixer.
17. A cartridge comprising:
at least one reception chamber extending in a longitudinal direction, and being configured to dispense a medium, the reception chamber having a head part, a base part and a cartridge wall bounding the reception chamber,
the head part having an outlet for the medium,
the cartridge wall being defined by a film and the head part and the base part being respective fixed shape parts, the head part being sealingly and integrally connected to the film that defines the cartridge wall;
a separate protective film at an end of the reception chamber that is bounded by the head part, the separate protective film being configured to sealingly close the reception chamber at the end of the reception chamber; and
a mixer having an inlet configured to cooperate with the outlet of the head part, the inlet being designed to puncture the protective film or to separate the protective film upon attachment of the mixer to the head part.
18. The cartridge in accordance with claim 17 , wherein
the inlet is moveable within the outlet.
19. The cartridge in accordance with claim 17 , wherein
the outlet is formed by an outlet passage that is molded onto the head part as a protruding tube, the inlet being moveable within the outlet passage.
20. The cartridge in accordance with claim 1 , wherein
the film is sealingly connected to the head part by a solidified liquid plastic, the film being at least partially overmolded with liquid plastic.
21. The cartridge in accordance with claim 1 , wherein
the protective film is intimately connected to the cartridge wall defined by the film.