EP2116484A1 - Piston pour une cartouche et cartouche - Google Patents
Piston pour une cartouche et cartouche Download PDFInfo
- Publication number
- EP2116484A1 EP2116484A1 EP09005287A EP09005287A EP2116484A1 EP 2116484 A1 EP2116484 A1 EP 2116484A1 EP 09005287 A EP09005287 A EP 09005287A EP 09005287 A EP09005287 A EP 09005287A EP 2116484 A1 EP2116484 A1 EP 2116484A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- cartridge
- seal
- parts
- edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
- B65D83/0072—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents the contents of a flexible bag being expelled by a piston or a movable bottom or partition provided in the container or the package
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/00576—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/00576—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container
- B05C17/00579—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container comprising means for allowing entrapped air to escape to the atmosphere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/00583—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes the container for the material to be dispensed being deformable
Definitions
- the invention relates to a piston for extruding a flowable mass from a cartridge according to the preamble of claim 1 and such a cartridge according to the preamble of claim 9.
- Cartridges for storing and squeezing a flowable, such as pasty mass are known, inter alia, in the construction sector.
- the mass may be contained in a foil pouch.
- the cartridge may contain two or more components, each contained in their own foil bags and pressed together.
- the film bags can be fully or partially, linear or point-like, for example, by gluing or plastic welding connected to the cartridge.
- a piston in the cartridge is displaceable.
- the plunger should successively release the foil pouch (s), if present and attached to the cartridge, and should seal the cartridge to allow leakage of the mass that may have escaped from the foil pouch between the plunger and the cartridge during extrusion to avoid and also prevent air ingress because of the associated entry of humidity.
- the object of the invention is to propose a suitable piston and a cartridge with such a piston.
- the piston according to the invention has a circumferential shear edge for detachment of the film bag (s) from an inner side of the cartridge, where the term “circulating” does not necessarily mean “completely circulating", since the shearing action does not necessarily have to be achieved over the entire circumference.
- the piston according to the invention has a peripheral seal for hermetically sealing the cartridge.
- the shearing edge and the seal are connected to each other, whereby they can also be indirectly connected via another part.
- the compound enables a production of the shearing edge of another, in particular harder material than the seal, which consists in particular of a rubber-elastic material.
- the invention makes it possible to choose a material suitable for the shearing edge and independently of this the choice of a different material suitable for the seal. As a result, both the shearing function of the shearing edge and the sealing function of the seal of the piston according to the invention can be optimized.
- a preferred embodiment of the invention provides that the piston has two parts matching in shape piston parts.
- One of the two piston parts has the shearing edge, the other the seal.
- the two piston parts are connected to the piston with each other, for example by means of a snap or locking connection. Due to their matching shape, the two piston parts in the same injection mold can be produced one after the other and from different materials.
- the shearing edge has the same shape as the seal, for example, the seal on a circumferential sealing edge.
- An embodiment of the invention provides a circumferential sealing lip as a seal.
- the shape of the sealing lip is also suitable for the shearing edge when the latter are made of a material of higher rigidity and the sealing lip of a material of higher elasticity.
- An embodiment of the invention provides a snap or snap connection connecting the shear edge and the seal.
- a snap or locking connection can be formed without additional parts and the items are connected to the piston with minimal effort.
- a snap or locking connection is suitable for automated connection and thus for mass production.
- the shearing edge is arranged in the extrusion direction in front of the seal, so that it dissolves a foil bag when pressed in front of the seal of the cartridge.
- the seal trailing in the extrusion direction ensures that any mass escaping from the foil bag does not pass by the piston and prevents the ingress of atmospheric moisture.
- the foil bag can be damaged during pressing, so that the mass contained in it emerges.
- the piston has a reservoir for the mass, which may for example be formed by a space between the shear edge and the seal having the piston part.
- An inlet opening of the reservoir is located between the shearing edge and the seal. The inlet opening can be circumferential. Through the inlet opening, mass which passes by the shearing edge passes into the reservoir of the piston.
- an embodiment of the invention provides a vent opening in the piston, which can be closed for example by means of a plug.
- a preferred embodiment of the invention provides that both piston parts have ventilation openings and that the piston parts are rotatable relative to one another.
- a rotational position communicate the vents of the two piston parts or in any case covers the one piston part the vent in the other piston part not from.
- the two piston parts of the piston can be introduced into a cartridge and thereby escape air through the vent opening of the piston parts of the cartridge.
- the one piston member closes the vent opening of the other piston part, so that when the cartridge is pressed, the flowable mass can not escape through the vents of the piston parts.
- inventive piston 1 has two piston parts 2, 3, in FIG. 1 as items and in FIG. 2 are shown assembled to the piston 1.
- the two piston parts 2, 3 are identical in their shape and size, but consist of different plastics. Due to the matching shape, the two piston parts 2, 3 in the same injection mold, but not simultaneously produced.
- the one piston part 2 has a circumferential shear edge 4, the other piston part 3 has a circumferential sealing lip 5 with a sealing edge 6 as a seal.
- the one, the shear edge 4 having piston part 2 consists of a hard, so rigid plastic, the other, the sealing lip 5 having piston part 3 is made of an elastic plastic, which is suitable as a material for a seal.
- the piston part 2 Due to the matching shape of the two piston parts 2, 3, the piston part 2 has a circumferential lip 7, whose cross section corresponds to the cross section of the sealing lip 5 and whose peripheral edge forms the shearing edge 4.
- the lip 7 and the sealing lip 5 in one piece in a circular disk-shaped base 8 over.
- the collar 9 are hook-shaped (see. FIGS. 3 and 4 ).
- the lip 7 and the sealing lip 5 on a circumferential, inwardly projecting bead 12 which cooperates with the collar 9: the bead 12 of the sealing lip 5 forms with the collar 9 of the shear edge 4 having piston part 2 a snap connection 13, the two piston parts 2, 3 as in Figures 2 . 3 and 4 to see comparable to a push button by snapping connects.
- the two piston parts 2, 3 can also be connected vice versa as shown by snapping the snap connection 13, but it is provided to arrange the piston part 2 having the shearing edges 4 in an extrusion direction in front of the other piston part 3, which has the sealing lip 5. So it is the collar 9 snapped on the bead 12 on the inside of the sealing lip 5 and the shearing edge 4 is free from the piston 1 from.
- the piston 1, which comprises the two piston parts 2, 3, which are connected to each other with the snap connection 13, received in a cartridge 15.
- the cartridge 15 contains a flowable, for example, pasty mass, which can be pressed out by moving the piston 1.
- the cartridge 15 may include a plurality of, for example, two components, which are contained separately in foil bags in the cartridge 15.
- the film bags, not shown as such, abut against an inner side of a wall of the cartridge 15 and are fixed to the inside of the cartridge 15, for example in a line with a glued or plastic weld seam 16 running in the longitudinal direction of the cartridge 15.
- the shearing edge 4 of the piston 1 releases the foil bags from the inside of the cartridge 15.
- the sealing lip 5 prevents that Mass past the piston 1 from the cartridge 15 exits. In addition, the sealing lip 5 prevents the entry of air into the cartridge connected to an entry of humidity.
- the mass leaked out of the foil bag is directed inwards by the sealing lip 5 and enters through the slits 10 of the collar 9 into an intermediate space between the base surfaces 8 of the two piston parts 2, 3.
- the space between the base surfaces 8 forms a reservoir 17 for the leaked from the foil pouch and the shearing edge 4 "overrun" mass, the slots 10 of the collar 9 form inlet openings for the reservoir 17.
- the sealing lip 5 seals due to their elasticity in the range of Unevenness on the inside of the cartridge 15, so for example in the field of adhesive or plastic weld 16, from.
- the two piston parts 2, 3 each have a vent opening 18. This has the form of a cylindrical hole in the embodiment and is arranged eccentrically parallel to the axis at a point at which a radial rib 21 abuts a tubular rib 20.
- the piston parts 2, 3 connected by snap-fitting snap-fit are rotatable relative to one another, so that the ventilation openings 18 of the two piston parts 2, 3 aligned and thus merge into each other.
- the piston 1 can be introduced into the cartridge 15 and escape air from the cartridge 15 through the vent openings 18.
- the one piston part 2 closes the vent opening 18 of the other piston part 3, as in FIG. 4 you can see.
- the piston parts 2, 3 calotte-shaped closure pins 19 which are arranged so that by rotation of the piston parts 2, 3 against each other, the closure pin 19 of the one piston part 2 can be brought into coincidence with the vent opening 18 of the other piston part 3, as it in FIG. 4 you can see. If the vent opening 18 is closed against each other by the rotation of the two piston parts 2, 3, no flowable mass can escape through the vent openings 18 in the piston 1 when the cartridge 15 is pressed out.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Coating Apparatus (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008022999A DE102008022999A1 (de) | 2008-05-09 | 2008-05-09 | Kolben für eine Kartusche und Kartusche |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2116484A1 true EP2116484A1 (fr) | 2009-11-11 |
Family
ID=40847070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09005287A Withdrawn EP2116484A1 (fr) | 2008-05-09 | 2009-04-11 | Piston pour une cartouche et cartouche |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2116484A1 (fr) |
JP (1) | JP2009269675A (fr) |
CN (1) | CN101575040A (fr) |
DE (1) | DE102008022999A1 (fr) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012055921A1 (fr) * | 2010-10-26 | 2012-05-03 | Kettenbach Gmbh & Co. Kg | Piston et agencement de cartouche le comprenant |
EP3189901A1 (fr) * | 2016-01-11 | 2017-07-12 | HILTI Aktiengesellschaft | Injecteur destine a remplir un espace annulaire autour d'un boulon d'ancrage |
DE102018121459A1 (de) | 2017-09-28 | 2019-03-28 | Ritter Gmbh | Zwei- oder Mehrkomponentenkartusche mit Faltenbalg |
WO2019121207A1 (fr) * | 2017-12-19 | 2019-06-27 | Wolfcraft Gmbh | Ensemble à piston pour un dispositif d'éjection à cartouche |
WO2021254647A1 (fr) * | 2020-06-16 | 2021-12-23 | Marc Rischewski | Dispositif d'évacuation pour un système de portionneuse |
US11541416B2 (en) | 2018-10-02 | 2023-01-03 | Medmix Switzerland Ag | Reusable cartridge piston |
US11938506B2 (en) | 2019-03-26 | 2024-03-26 | Medmix Switzerland Ag | Piston, cartridge, dispenser |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011054955A1 (de) | 2011-10-31 | 2013-05-02 | Minebea Co., Ltd. | Rotorbaugruppe eines Gleichstrommotors |
KR101903494B1 (ko) | 2015-03-20 | 2018-10-02 | 주식회사 엘지생활건강 | 기밀 봉상화장품 용기 |
FR3047186B1 (fr) * | 2016-02-01 | 2020-02-14 | Albea Lacrost | Dispositif de purge d'air pour distributeur de produit liquide sans reprise d'air |
KR101881362B1 (ko) * | 2017-03-30 | 2018-07-25 | 펌텍코리아(주) | 이중피스톤을 갖는 화장품 용기 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH669165A5 (en) * | 1986-03-21 | 1989-02-28 | Sika Ag | Dispenser of paste-like product - has rigid cylindrical housing to receive product which is enclosed in flexible bag |
US4986444A (en) * | 1989-05-09 | 1991-01-22 | Dominique Corso | Guns intended for extruding pastry products |
DE9217916U1 (de) * | 1992-09-17 | 1993-04-22 | Dow Corning Corp., Midland, Mich. | Adapter für Spritzvorrichtungen zum Ausbringen von extrudierbaren Materialien aus wurstförmigen Packungen mit flexiblen Hüllen |
DE9210832U1 (de) * | 1992-08-13 | 1993-12-16 | Prestele, Eugen, 86161 Augsburg | Kolben aus Kunststoff |
WO1995005984A2 (fr) * | 1993-08-20 | 1995-03-02 | Keller Wilhelm A | Dispositif de comptage et de dosage proportionnel de plusieurs constituants a cartouche compressible |
DE29506800U1 (de) * | 1995-04-21 | 1996-08-29 | Prestele, Eugen, 86161 Augsburg | Entlüftungsvorrichtung |
DE102004056908A1 (de) | 2004-11-25 | 2006-06-01 | Fischerwerke Artur Fischer Gmbh & Co. Kg | Mehrkomponenten-Kartusche |
DE102005017599A1 (de) | 2005-04-16 | 2006-10-19 | Fischerwerke Artur Fischer Gmbh & Co. Kg | Mehrkomponenten-Kartusche |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9320257D0 (en) * | 1993-10-01 | 1993-11-17 | Rocep Lusol Holdings | A container for dispensing a product |
DE10342090B4 (de) * | 2003-09-10 | 2007-06-06 | Heraeus Kulzer Gmbh | Verschlusskolben für Kartuschen mit Entlüftung und Barriereeigenschaften |
US7621428B2 (en) * | 2005-07-01 | 2009-11-24 | Nordson Corporation | Dispensing cartridge with vented piston |
-
2008
- 2008-05-09 DE DE102008022999A patent/DE102008022999A1/de not_active Withdrawn
-
2009
- 2009-04-11 EP EP09005287A patent/EP2116484A1/fr not_active Withdrawn
- 2009-05-08 JP JP2009113233A patent/JP2009269675A/ja active Pending
- 2009-05-11 CN CNA2009101388583A patent/CN101575040A/zh active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH669165A5 (en) * | 1986-03-21 | 1989-02-28 | Sika Ag | Dispenser of paste-like product - has rigid cylindrical housing to receive product which is enclosed in flexible bag |
US4986444A (en) * | 1989-05-09 | 1991-01-22 | Dominique Corso | Guns intended for extruding pastry products |
DE9210832U1 (de) * | 1992-08-13 | 1993-12-16 | Prestele, Eugen, 86161 Augsburg | Kolben aus Kunststoff |
DE9217916U1 (de) * | 1992-09-17 | 1993-04-22 | Dow Corning Corp., Midland, Mich. | Adapter für Spritzvorrichtungen zum Ausbringen von extrudierbaren Materialien aus wurstförmigen Packungen mit flexiblen Hüllen |
WO1995005984A2 (fr) * | 1993-08-20 | 1995-03-02 | Keller Wilhelm A | Dispositif de comptage et de dosage proportionnel de plusieurs constituants a cartouche compressible |
DE29506800U1 (de) * | 1995-04-21 | 1996-08-29 | Prestele, Eugen, 86161 Augsburg | Entlüftungsvorrichtung |
DE102004056908A1 (de) | 2004-11-25 | 2006-06-01 | Fischerwerke Artur Fischer Gmbh & Co. Kg | Mehrkomponenten-Kartusche |
DE102005017599A1 (de) | 2005-04-16 | 2006-10-19 | Fischerwerke Artur Fischer Gmbh & Co. Kg | Mehrkomponenten-Kartusche |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9797511B2 (en) | 2010-10-26 | 2017-10-24 | Kettenbach Gmbh & Co Kg | Piston and cartridge arrangement having said piston |
WO2012055921A1 (fr) * | 2010-10-26 | 2012-05-03 | Kettenbach Gmbh & Co. Kg | Piston et agencement de cartouche le comprenant |
TWI672430B (zh) * | 2016-01-11 | 2019-09-21 | 列支敦斯登商喜利得股份有限公司 | 用於對填充圍繞錨桿的環形空間的噴射器 |
EP3189901A1 (fr) * | 2016-01-11 | 2017-07-12 | HILTI Aktiengesellschaft | Injecteur destine a remplir un espace annulaire autour d'un boulon d'ancrage |
WO2017121706A1 (fr) * | 2016-01-11 | 2017-07-20 | Hilti Aktiengesellschaft | Injecteur destiné à remplir un espace annulaire autour d'un boulon d'ancrage |
CN108463290A (zh) * | 2016-01-11 | 2018-08-28 | 喜利得股份公司 | 用于填充围绕锚杆的环形空间的喷射器 |
DE102018121459A1 (de) | 2017-09-28 | 2019-03-28 | Ritter Gmbh | Zwei- oder Mehrkomponentenkartusche mit Faltenbalg |
WO2019121207A1 (fr) * | 2017-12-19 | 2019-06-27 | Wolfcraft Gmbh | Ensemble à piston pour un dispositif d'éjection à cartouche |
CN111491745A (zh) * | 2017-12-19 | 2020-08-04 | 沃尔夫克拉夫特公司 | 用于弹筒式挤出设备的活塞装置 |
US11148168B2 (en) | 2017-12-19 | 2021-10-19 | Wolfcraft Gmbh | Piston assembly for a cartridge discharging device |
CN111491745B (zh) * | 2017-12-19 | 2022-07-19 | 沃尔夫克拉夫特公司 | 用于弹筒式挤出设备的活塞装置 |
US11541416B2 (en) | 2018-10-02 | 2023-01-03 | Medmix Switzerland Ag | Reusable cartridge piston |
US11938506B2 (en) | 2019-03-26 | 2024-03-26 | Medmix Switzerland Ag | Piston, cartridge, dispenser |
WO2021254647A1 (fr) * | 2020-06-16 | 2021-12-23 | Marc Rischewski | Dispositif d'évacuation pour un système de portionneuse |
Also Published As
Publication number | Publication date |
---|---|
CN101575040A (zh) | 2009-11-11 |
DE102008022999A1 (de) | 2009-11-12 |
JP2009269675A (ja) | 2009-11-19 |
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