The disclosure provides a fluid-tight, but non-releasable or only under a large force releasable connection between the delivery device of a dispenser and the medium reservoir of the dispenser. For the discharge of a fluid, preferably liquid medium, which can in particular contain a pharmaceutical s
The disclosure provides a fluid-tight, but non-releasable or only under a large force releasable connection between the delivery device of a dispenser and the medium reservoir of the dispenser. For the discharge of a fluid, preferably liquid medium, which can in particular contain a pharmaceutical substance, such a dispenser has at least two parts, firstly a medium container for storing the medium and secondly a delivery device fastenable to the medium container. For fastening together the medium container and the delivery device, fastening portions are formed on both parts. In the fastening portion there is a gap between the medium container and the delivery device. An elastically deformable ring fastener, preferably as a layer on the outside of the delivery device, is provided and its wall thickness, prior to installation, is larger than the gap dimension. Prior to the fastening together of the two parts, namely the medium container and delivery device, the plastically deformable ring fastener is fitted to one of the two parts.
대표청구항▼
What is claimed is: 1. Dispenser for discharging a fluidic medium, comprising a medium container (21) for storing the medium, having a fastening portion (23) and a delivery device (22) for delivering the medium from the medium container to a discharge opening (31) and being fastened to the medium
What is claimed is: 1. Dispenser for discharging a fluidic medium, comprising a medium container (21) for storing the medium, having a fastening portion (23) and a delivery device (22) for delivering the medium from the medium container to a discharge opening (31) and being fastened to the medium container (21) by pushing the delivery device and the container together under a mounting pressure along a fastening axis (40); fastening surfaces (67, 75) on both the medium container and an outer wall element of the delivery device (22), extending around the fastening axis and substantially parallel thereto, at said fastening surfaces (67,75) the medium container and the delivery device are fastened to each other by a substantially radial pressure exerted on the fastening surfaces, a deformable fastener ring in form of a layer (26) being fixedly applied to the outer wall element of the delivery device and providing one of the fastening surfaces, the fastener layer being elastically deformed upon pushing the delivery device and the medium container forcedly together, the fastener layer (26) being integral with said outer wall element which is formed as a two-component injection molding piece with the deformable fastener layer made of a soft plastic material and a basic inner portion of the outer wall element made of a harder plastic material. 2. Dispenser according to claim 1, wherein the fastening axis is coincident with a central axis of the delivery device. 3. Dispenser according to claim 1, wherein the fastener ring is made from a plastics material containing elasticizing agents. 4. Dispenser according to claim 1, wherein a Shore A hardness of the material of the fastener ring is between 30 and 60. 5. Dispenser according to claim 1, wherein the fastening portion (23) of the medium container (21) is a bottle neck. 6. Dispenser according to claim 1, wherein at least one of the fastening surfaces facing the fastening portion being a scaled fastening surface, the scaling preventing a relative movement of said surfaces in a release direction which is contrary to a direction of said pushing while easing said pushing. 7. Dispenser according to claim 1, wherein the fastening surfaces are substantially cylindrical. 8. Dispenser according to claim 1, wherein the fastener ring is partly conical at its outside. 9. Dispenser according to claim 1, wherein the delivery device has, adjacent to the fastening surface of the delivery device, a flange abutting an end face of the medium container. 10. Dispenser according to claim 1, wherein the medium is a pharmaceutical substance. 11. Dispenser for discharging a fluidic medium, comprising a medium container (21) for storing the medium, having a fastening portion (23) and a delivery device (22) for delivering the medium from the medium container to a discharge opening (31) and being fastened to the medium container (21) by pushing the delivery device and the container together under a mounting pressure along a fastening axis (40); fastening surfaces (67, 75) on both the medium container and an outer wall element of the delivery device (22), extending around the fastening axis and substantially parallel thereto, at said fastening surfaces (67,75) the medium container and the delivery device are fastened to each other by a substantially radial pressure exerted on the fastening surfaces, a deformable fastener ring in form of a layer (26) being fixedly applied to the outer wall element of the delivery device and providing one of the fastening surfaces, the fastener layer being elastically deformed upon pushing the delivery device and the medium container forcedly together, the fastener layer (26) comprising a sealing portion (27) being a substantially continuous annulus and a holding portion (28) having at least one slit (29). 12. Dispenser according to claim 11, wherein the at least one slit (29) is orientated substantially parallel to the fastening axis. 13. Dispenser according to claim 12, wherein the slit ( 29) has a width, which is between half and double the wall thickness of the ring fastener. 14. Dispenser according to claims 11, wherein the sealing portion (27) has an axial length between 10% and 30% of an axial length of the holding portion (28). 15. Dispenser for discharging a fluidic medium, comprising a medium container (21) for storing the medium, having a fastening portion (23) and a delivery device (22) for delivering the medium from the medium container to a discharge opening (31) and being fastened to the medium container (21) by pushing the delivery device and the container together under a mounting pressure along a fastening axis (40); fastening surfaces (67, 75) on both the medium container and an outer wall element of the delivery device (22), extending around the fastening axis and substantially parallel thereto, at said fastening surfaces (67,75) the medium container and the delivery device are fastened to each other by a substantially radial pressure exerted on the fastening surfaces, a deformable fastener ring in form of a layer (26) being fixedly applied to the outer wall element of the delivery device and providing one of the fastening surfaces, the fastener layer being elastically deformed upon pushing the delivery device and the medium container forcedly together, the delivery device (22) being a manually operable pump having an operating pusher (41), a pump body (42) including a pump cylinder (43) and a pump piston, the pump body and the operating pusher having cooperating seating surfaces (70, 71, 72, 73) for transferring the mounting pressure exerted on the pusher to the pump body without exerting the full mounting pressure to the pump piston (47). 16. Dispenser according to claim 15, wherein the pump cylinder has an internal shoulder (69) for abutment of the pump piston(47) in order to open an outlet valve (59) mechanically, the seating surfaces (70, 71, 72, 73), the piston (47) and the shoulder (69) are arranged and dimensioned to allow, under the mounting pressure, the piston to abut the shoulder (69) and to open the outlet valve (59) without exerting the full mounting pressure to the piston. 17. Dispenser according to claim 15, wherein the at least one slit (29) is orientated substantially parallel to the fastening axis. 18. Dispenser according to claim 15, wherein the fastening axis is coincident with a central axis of the delivery device. 19. Dispenser according to claim 15, wherein the slit ( 29) has a width, which is between half and double the wall thickness of the ring fastener. 20. Dispenser according to claims 15, wherein the sealing portion (27) has an axial length between 10% and 30% of an axial length of the holding portion (28). 21. Dispenser according to claim 15, wherein the fastener ring is made from a plastics material containing elasticizing agents. 22. Dispenser according to claim 15, wherein the Shore A hardness of the material of the fastener ring is between 30 and 60. 23. Dispenser according to claim 21, wherein the scaled fastening surface has a barbed shape. 24. Dispenser according to claim 21, wherein the scaled fastening surface is produced by scaling forming agents added to a plastic material, of which the fastening surface facing the fastening portion is made. 25. Dispenser for discharging a fluidic medium, comprising a medium container (21) for storing the medium, having a fastening portion (23) and a delivery device (22) for delivering the medium from the medium container to a discharge opening (31) and being fastened to the medium container by pushing the delivery device and the container together under a mounting pressure along a fastening axis ( 40); fastening surfaces on both the medium container and the delivery device, extending around the fastening axis and substantially parallel thereto, at said fastening surfaces the medium container and the delivery device are fastened to each other by a substantially radial pressure exerted on the fastening surfaces, the fastening surfaces (23, 24) being spaced from each other by a gap (25) between the medium container ( 21) and the delivery device (22), a deformable ring fastener (26) being provided, having a wall thickness prior to fastening which is larger than the gap ( 25) and being inserted in the gap between the fastening surfaces upon pushing the delivery device and the medium container forcedly together; the ring fastener comprising a sealing portion (27) being a substantially continuous annulus and a holding portion (28) having at least one slit (29). 26. Dispenser for discharging a fluidic medium, comprising a medium container (21) for storing the medium, having a fastening portion (23) and a delivery device (22) for delivering the medium from the medium container to a discharge opening (31) and being fastened to the medium container (21) by pushing the delivery device and the container together under a mounting pressure along a fastening axis (40); fastening surfaces (67, 75) on both the medium container and an outer wall element of the delivery device (22), extending around the fastening axis and substantially parallel thereto, at said fastening surfaces (67,75) the medium container and the delivery device are fastened to each other by a substantially radial pressure exerted on the fastening surfaces, a deformable fastener ring in form of a layer (26) being fixedly applied to the outer wall element of the delivery device and providing one of the fastening surfaces, the fastener layer being elastically deformed upon pushing the delivery device and the medium container forcedly together, the fastener layer (26) being integral with said outer wall element which is formed as a two-component injection molding piece with the deformable fastener layer made of a soft plastic material and a basic inner portion of the outer wall element made of a harder plastic material, the fastener layer (26) comprises a sealing portion (27) being a substantially continuous annulus and a holding portion (28) having at least one slit (29). 27. Dispenser according to claim 1, wherein the fastening surface (67) on the container is an inside of a bottle neck ( 23) and is slightly curved to have a smaller diameter at both axial ends of the fastening surface (67) than in the middle of said surface.
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이 특허에 인용된 특허 (7)
Behar Alain,FRX, Device for distribution of fluid products.
Jumel Bernard (4 ; avenue Henri 60750 Choisy Au Bac FRX) Platel Frdric (Rsidence Vert Bocage - Blvd Victor Hugo 76260 Eu FRX), Hand pump utilizing press fit components for sealing and closure.
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