Click-and-Fix coupling

摘要

An improved coupling piece for the Click-and-Fix coupling of a disposable pressure container with a dispensing gun is provided, including an integrated cap and internal support legs for securing the position of the stem of the valve of the container when pressure increases inside the container, and which coupling piece may be produced as one single product using injection moulding. Further provided is an assembly of a container with the coupling piece, and a process for producing the coupling piece and the assembly. The coupling piece and/or the assembly may be further adapted for handheld use with a suitable handheld applicator.

主权项

1. A first coupling piece for attachment to a container which coupling piece is rotatably connectable to a second coupling piece provided for attachment to a dispensing gun for applying a component present in the container, the two coupling pieces together providing a coupling between the container and the dispensing gun, the container comprising a valve for closing off the container, whereby the container valve comprises a valve cup and is provided for being opened during effectuation of the coupling, one of the two coupling pieces being provided with a guide and the other coupling piece being provided with a protrusion for cooperating with the guide, which protrusion is moveable within the guide between a first position and a second position, in not more than one full 360 degree turn, the first position corresponding to an uncoupled state of the coupling and a closed position of the container valve, and the second position corresponding to a coupled state of the coupling and an opened position of the container valve, wherein
(i) the first coupling piece comprises an integrated cap provided for being broken off manually and for requiring its removal in order to allow an effectuation of the coupling, (ii) the first coupling piece comprises at least one internal support leg which is providing an internal rim or sections of an internal rim for engaging with the container valve cup when the first coupling piece is attached to the container, (iii) whereby the integrated cap is provided with open segments, and (iv) whereby the area covered by a first projection, of the open segments in the cap and made along the axis of rotation of the coupling and onto a plane perpendicular to this axis of rotation, comprises the area covered by a second projection, made along the same axis and onto the same plane, of the internal surfaces of the internal support legs which face the axis of rotation.