EP0647569B1 - Kolben für Kartuschen - Google Patents
Kolben für Kartuschen Download PDFInfo
- Publication number
- EP0647569B1 EP0647569B1 EP94105446A EP94105446A EP0647569B1 EP 0647569 B1 EP0647569 B1 EP 0647569B1 EP 94105446 A EP94105446 A EP 94105446A EP 94105446 A EP94105446 A EP 94105446A EP 0647569 B1 EP0647569 B1 EP 0647569B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- skirt
- liquid
- thrust
- cartridge
- 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.)
- Expired - Lifetime
Links
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims 1
- 230000001050 lubricating effect Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- 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
- 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
- B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
Definitions
- the invention relates to a piston for a cartridge, in which a particularly highly viscous liquid is available held and by means of the longitudinally displaceable in the cartridge Piston can be conveyed out of the cartridge is that the piston has an axially acting compressive force can be misplaced, the piston consisting of one piece hollow cylindrical piston jacket and one on the Piston jacket on its liquid-facing Side acting as a pressure surface on the liquid, domed piston crown, one in the cartridge axially displaceable pressure plate is provided by which the piston with the compressive force towards Liquid is resilient.
- a piston is known from DE-U-92 11 218.8.
- Cartridges with a plunger of this type are large Scope for the ready-made provision of sealants and adhesives or similar highly viscous Liquids used.
- the liquids are there using suitable dispensing guns from the cartridges carried out directly on the workpieces.
- the dispensing guns are set up so that one of Hand applied mechanical pressure exercised or such a pressure force initially pneumatically is produced. In any case it increases the internal pressure in the cartridge, the stronger, the tougher - With otherwise the same, in particular the same, geometric geometry Conditions - the liquid in question is. There is a risk that this will result in a flawless Sealing of the piston can no longer be guaranteed can and loss of the liquid to be processed and their discharge into undesirable areas.
- the object of the invention is therefore to a piston of the type specified above so train that a cartridge seal too is then ensured if the one containing the liquid Interior of the cartridge under increased pressure is exposed when a compressive force is exerted on the piston is exercised.
- the outer diameter increases of the piston skirt under the influence of the pressure force to, especially in one through the connections of the Pressure area marked, and so long until it lies against the wall of the cartridge; increasing Compressive force increases the sealing force on this Wall and thus improves the seal.
- the pressure pieces with the Piston jacket and the piston crown integrally formed be.
- the gusset in the connection area of the piston crown on the piston skirt can in one for the course of forces can be designed in a particularly favorable manner, that at this transition from the piston crown to the piston skirt on the inner circumference there is a ring collar to which the pressure pieces are connected.
- Pistons can be reached when on the outside Circumference of the piston skirt radial lubrication grooves or - bags are provided, and the seal can be improved be when on the outer circumference of the piston skirt radial sealing lips are provided.
- Pistons designed according to the invention can be advantageous from a rubber, a rubber-like material or consist of an elastic plastic; then they are Can be manufactured cheaply as molded parts and is particularly functional.
- a piston according to the invention essentially consists of one piece from a hollow cylindrical piston skirt 1 and a piston crown 2.
- the piston skirt 1 is on its outer Circumference 11 with several radially circumferential sealing lips 12 equipped, which seals against the wall of the in the Place the drawing of the omitted cartridge within which the piston is movable in the axial direction.
- Some Lubrication grooves 13 in which a lubricant is stored ensure long-term smooth operation of the piston in the cartridge.
- a stiffening of the piston skirt 1 can by longitudinal ribs provided on the inner circumference 14 thereof Reach 15.
- the dimensional stability thus given leaves it advised appear, the piston bottom end of the piston skirt 1 to touch on its outer circumference 11, so that a bevel 16 the insertion of the piston into the cartridge facilitated.
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)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Coating Apparatus (AREA)
- Fluid-Damping Devices (AREA)
Description
- Fig. 1
- einen erfindungsgemäßen Kolben in einem mittigen Längsschnitt und
- Fig. 2
- eine Druntersicht auf Fig.1, beide in schematisch vereinfachter Darstellung.
- 1
- Kolbenmantel
- 11
- Umfang
- 12
- Dichtlippe
- 13
- Schmierrille
- 14
- Umfang
- 15
- Längsrippe
- 16
- Schräge
- 2
- Kolbenboden
- 21
- Bund
- 3
- Druckstück
- 30
- Druckring
- 31
- Anschlagfläche
- 32
- Trennschlitz
- 4
- Ringbund
- 5
- Druckplatte
- F
- Druckkraft
Claims (8)
- Kolben (1, 2) für eine Kartusche, in der eine insbesondere hochviskose Flüssigkeit vorrätig gehalten und mittels des in der Kartusche längsverschiebbaren Kolbens (1, 2) aus der Kartusche dadurch förderbar ist, daß der Kolben (1, 2) einer axial wirkenden Druckkraft aussetzbar ist, der Kolben (1, 2) einstückig bestehend aus einem hohlzylindrischen Kolbenmantel (1) und einem an dem Kolbenmantel (1) auf dessen der Flüssigkeit zugewandten Seite als Druckfläche auf die Flüssigkeit wirkenden, gewölbten Kolbenboden (2), wobei eine in der Kartusche axial verschiebbare Druckplatte (5) vorgesehen ist, durch welche der Kolben (1, 2) mit der Druckkraft (F) in Richtung der Flüssigkeit belastbar ist,
dadurch gekennzeichnet, daß(a) an dem inneren Umfang (14) des Kolbenmantels (1) mehrere Druckstücke (3) in der Weise vorgesehen sind, daß sie von der Druckplatte (5) gleichzeitig belastbar sind, wenn diese der Druckkraft (F) ausgesetzt ist,(b) die Druckstücke (3) jeweils als einarmige, in dem Kolbenmantel (1) eingespannte, radial und axial in Richtung auf die Druckplatte (5) schräg nach innen weisende Hebel ausgebildet sind,(c) der Kolben unter der Wirkung der Druckkraft (F) elastisch verformbar ist und daß(d) die Druckstücke (3) aus einem Druckring (30) durch an dessen Umfang (14) verteilte radiale Trennschlitze (32) gebildet werden. - Kolben nach Anspruch 1, dadurch gekennzeichnet, daß die Druckstücke (3) gleichförmig am Umfang (14) des Kolbenmantels (1) verteilt angeordnet sind.
- Kolben nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Druckstücke (3) in der Nähe des Kolbenbodens (2) in den Kolbenmantel (1) eingespannt sind.
- Kolben nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Druckstücke (3) mit dem Kolbenmantel (1) und dem Kolbenboden (2) einstückig ausgebildet sind.
- Kolben nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß an dem Übergang von dem Kolbenboden (2) in den Kolbenmantel (1) an dessen innerem Umfang (14) ein Ringbund (4) vogesehen ist, an dem die Druckstücke (3) angeschlossen sind.
- Kolben nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß am dem äußeren Umfang (11) des Kolbenmantels (1) radiale Schmierrillen oder -taschen (13) vorgesehen sind.
- Kolben nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß am dem äußeren Umfang (11) des Kolbenmantels (1) radiale Dichtlippen (12) vorgesehen sind.
- Kolben nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß er aus einem Gummi, einem gummiähnlichen Werkstoff oder einem elastischen Kunststoff besteht.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI9430140T SI0647569T1 (en) | 1993-10-04 | 1994-04-08 | Piston for cartridges |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4333811A DE4333811A1 (de) | 1993-10-04 | 1993-10-04 | Kolben zum Fördern von niedrig- bis hochviskosen Flüssigkeiten aus Kartuschen |
DE4333811 | 1993-10-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0647569A1 EP0647569A1 (de) | 1995-04-12 |
EP0647569B1 true EP0647569B1 (de) | 1998-06-10 |
Family
ID=6499376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94105446A Expired - Lifetime EP0647569B1 (de) | 1993-10-04 | 1994-04-08 | Kolben für Kartuschen |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0647569B1 (de) |
AT (1) | ATE167152T1 (de) |
DE (2) | DE4333811A1 (de) |
DK (1) | DK0647569T3 (de) |
ES (1) | ES2119921T3 (de) |
SI (1) | SI0647569T1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2302087B (en) * | 1995-06-09 | 1999-01-27 | Body Shop Int Plc | Dispensing apparatus |
CN107161503B (zh) * | 2017-06-13 | 2020-08-07 | 南京工业职业技术学院 | 一种减少浪费的容纳壳 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3005855A1 (de) * | 1980-02-16 | 1981-08-20 | Alfred Fischbach Kg Kunststoff-Spritzgusswerk, 5250 Engelskirchen | Bodenverschluss fuer einen hohlzylindrischen strangpressbehaelter |
DE3148490C2 (de) * | 1981-12-08 | 1986-02-13 | Alfred Fischbach Kg Kunststoff-Spritzgusswerk, 5250 Engelskirchen | Bodenverschluß für einen hohlzylindrischen Strangpreßbehälter |
DE8710233U1 (de) * | 1987-07-25 | 1987-11-05 | Alfred Fischbach Kg Kunststoff-Spritzgusswerk, 5250 Engelskirchen | Kartuschenkolben |
DE9211218U1 (de) * | 1991-08-26 | 1993-01-21 | Prestele, Eugen, 8900 Augsburg | Restlos entleerbare Kartusche für pastöse Massen |
DE4139744C2 (de) * | 1991-12-03 | 1994-07-21 | Alfred Fischbach Kunststoff Sp | Kartusche für plastische Massen |
-
1993
- 1993-10-04 DE DE4333811A patent/DE4333811A1/de not_active Withdrawn
-
1994
- 1994-04-08 AT AT94105446T patent/ATE167152T1/de not_active IP Right Cessation
- 1994-04-08 EP EP94105446A patent/EP0647569B1/de not_active Expired - Lifetime
- 1994-04-08 DE DE59406191T patent/DE59406191D1/de not_active Expired - Fee Related
- 1994-04-08 DK DK94105446T patent/DK0647569T3/da active
- 1994-04-08 SI SI9430140T patent/SI0647569T1/xx unknown
- 1994-04-08 ES ES94105446T patent/ES2119921T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE167152T1 (de) | 1998-06-15 |
SI0647569T1 (en) | 1998-08-31 |
DE4333811A1 (de) | 1995-04-06 |
DE59406191D1 (de) | 1998-07-16 |
DK0647569T3 (da) | 1999-03-29 |
EP0647569A1 (de) | 1995-04-12 |
ES2119921T3 (es) | 1998-10-16 |
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