EP1116670A1 - Kolben zum Verschliessen einer Kartusche - Google Patents
Kolben zum Verschliessen einer Kartusche Download PDFInfo
- Publication number
- EP1116670A1 EP1116670A1 EP00810833A EP00810833A EP1116670A1 EP 1116670 A1 EP1116670 A1 EP 1116670A1 EP 00810833 A EP00810833 A EP 00810833A EP 00810833 A EP00810833 A EP 00810833A EP 1116670 A1 EP1116670 A1 EP 1116670A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- cylindrical
- cartridge
- container part
- bevel
- 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.)
- Granted
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
- B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
-
- 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
- B65D2205/00—Venting means
- B65D2205/04—Venting means for venting during the initial insertion of a piston
Definitions
- the invention relates to a piston for closing or sealing a cartridge, namely a piston according to the preamble of claim 1.
- Cartridges are used to hold a flowable material determined and used for example everywhere there where at most a moisture-sensitive, flowable Material in portions in grooves, joints and the like must be applied.
- Those in construction and in industry Cartridges used today are mainly made of aluminum manufactured. They have a cylindrical container part with an outlet nozzle arranged at the front end and one in the rear end opening used and movable in the longitudinal direction of the cartridge Piston for sealing the cartridge interior and dispensing of the flowable material.
- the material usually becomes a hand-operated injection gun used with a plunger that fits the piston Using the cartridge, push the plunger toward the outlet port shifts.
- the invention is based on the object, a new one To create pistons for cartridges of the aforementioned type, which allows fluid and gas-tight sealing to simplify the cartridge so that spreading, i.e. on the additional use of a spreading device can be.
- the new piston also called press piston below, is essentially characterized by the fact that it is one-sided is formed closed cylinder, the outer Diameter is at least as large as the inside diameter of the cylindrical container part.
- the invention Piston is so dimensioned that it already fits snugly into the container part. This is not possible without additional effort, can be but without further ado using a conventional, axially working Carry out the pressing device. The advantage of this The procedure is obvious. So it can be done afterwards Spreading the piston using a specially created one Device are dispensed with.
- the cylindrical shell of the invention Piston so with at least one from the front wall outgoing chamfer that when pressing of the piston in the container part of the cartridge the least a bevel together with the cylindrical wall of the container part briefly forms a passage through which the Air displaced by the piston can escape to the outside, and that this does not adversely affect the tightness of the cartridge influencing overpressure arises in the interior of the cartridge and in particular no residual air remains in the cartridge, that triggers a chemical reaction, for example one unwanted hardening of the flowable material within of the container part.
- the press pistons according to the invention preferably consist made of metallic material, for example tinplate or Aluminum.
- the bevels according to the invention do not include the entire circumference of the cylindrical shell and are - like from can be seen from the drawing explained below - essentially dent-like indentations of the cylindrical Coat.
- the cartridge shown in Figure 1 is a whole designated 1 and has a cylindrical container part 2 to hold a flowable material, such as a sealant containing polyurethane.
- the container part 2 has an end face 3 with an outlet nozzle 4.
- the latter preferably has an external thread 4a which for use of the cartridge 1 is not shown Outlet tip is screwed on.
- the end 5 of the container part opposite the end face 3 2 is open and comes after filling the cartridge 1 with the press piston 6 according to the invention in a fluid and gas tight manner locked.
- the plunger 6 drawn on an enlarged scale in FIGS. 2 and 3 is preferably made of aluminum and has an end wall 7 which is intended to face the outlet 4 of the cartridge 1 and an essentially cylindrical jacket 8 with the length l 1 .
- the latter is divided into a first cylinder section 9 and 10 facing away from the end wall 7 and a second cylinder section facing the end wall 7.
- the wall thickness of the plunger 6 is 0.2 mm - 1 mm, but preferably 0.4 mm. So that fluid and gas-tight Closure of the cartridge interior is not a retrofit Spreading of the piston 6 is necessary, it has one outer diameter, which is at least as large as the inside diameter of the cylindrical container part 2, but at most about 2%, for example 1%, is greater than this.
- the second cylinder section 10 with six symmetrical around bevels arranged around the circumference of the cylinder section 10 11 provided, starting from the front edge 7a extend over the entire length of the cylinder section 10 and with increasing distance from the rounded Front edge 7a become narrower.
- the length L 2 of the second cylinder section 10 is preferably chosen so that the relationship 1/4 L 1 ⁇ L 2 ⁇ 2/3 L 1 is satisfied. It is the length 1 2 of the cylinder section 10 in any case at least 1/4 and at most 2/3 of the total length l 1 .
- the cylinder section 9 essentially serves as a seal of the cartridge interior. It must therefore have an outer surface which is so large that the cartridge interior also optimally sealed when moving the piston 6 is.
- the cylinder section 9 is therefore preferred at least the same size as the cylinder section 10.
- the jacket 8 as a whole must also be so long that the piston 6 when pressing the material out of the Cartridge 1 maintains its axial orientation and itself not at an angle.
- the plunger 6 on its end face 7 a central, circular Bulge 12 and six radially arranged and from the bulge 12 has outwardly extending notches 13, which in turn are so symmetrically aligned that their axial extensions between two neighboring ones Bevels 11 come to rest.
- Both the bulge 12 and the notches 13 serve essentially to a form-stable and stable end wall 7 to form the pressure the spray gun used to hold the cartridge Holds up.
- the in the rear end section 5 additionally has a wax layer container part 2 filled with flowable material.
- the container part 2 is then one of the filling or press assigned to the closing street, with which a piston 6 in the open end portion 5 of the container part 2 is pressed.
- the material of container part 2 and Piston 6 is also coordinated so that if the Outside diameter of the piston 6 is a little bit larger than the inside diameter of the container part is the cylindrical Wall of the container part when the piston 6 is pressed in somewhat deformed and expanding.
- Both the wall thicknesses and the dimensions of the interior or outer diameter of container part 2 and piston 6 are coordinated so that they are fluid and gas tight Closure is guaranteed. It is therefore the aforementioned wall thicknesses and dimensions of the inventive Press piston experience based on numerous Test attempts result and with different choice of Can differentiate material and cartridge size. It can therefore pistons according to the invention from the illustrated embodiment have different shapes and dimensions.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Coating Apparatus (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
Claims (6)
- Kolben zum Einsetzen in den zylindrischen Behälterteil (2) einer zur Aufnahme eines fliessfähigen Materials dienenden Kartusche (1) mit einem zylindrischen Mantel (8) und einer Stirnwand (7), dadurch gekennzeichnet, dass der äussere Durchmesser des zylindrischen Mantels (8) des Kolbens (6) mindestens ebenso gross ist, wie der Innendurchmesser des zylindrischen Behälterteils (2) der Kartusche (1) und dass der zylindrische Mantel (8) so bemessen und mit mindestens einer von der Stirnwand (7) ausgehenden Anschrägung (11) versehen ist, dass er satt passend in den Behälterteil (2) eingepresst werden kann und dass beim Einpressen des Kolbens (6) die mindestens eine Anschrägung (11) zusammen mit der zylindrischen Wand des Behälterteils (2) kurzzeitig einen Durchgang bildet, durch den die vom Kolben (6) verdrängte Luft nach aussen entweichen kann.
- Kolben nach Anspruch 1, dadurch gekennzeichnet, dass mindestens zwei, vorzugsweise vier oder sechs, symmetrisch um den Umfang des zylindrischen Mantels (8) verteilte Anschrägungen (11) vorhanden sind.
- Kolben nach Anspruch 1 oder 2, gekennzeichnet durch einen die mindestens eine Anschrägung (11) aufweisenden Zylinderabschnitt (10), dessen Länge mindestens 1/4 und höchstens 2/3 der Gesamtlänge des zylindrischen Mantels (8) ist.
- Kolben nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Aussendurchmesser des zylindrischen Mantels (8) höchstens 2% grösser ist, als Innendurchmesser des zylindrischen Behälterteils (2) .
- Kolben nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die mindestens eine Anschrägung (11) mit zunehmendem Abstand von der Stirnwand (7) schmäler wird.
- Kolben nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass er aus Aluminium besteht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH462000 | 2000-01-11 | ||
CH462000 | 2000-01-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1116670A1 true EP1116670A1 (de) | 2001-07-18 |
EP1116670B1 EP1116670B1 (de) | 2004-03-31 |
Family
ID=4279495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00810833A Expired - Lifetime EP1116670B1 (de) | 2000-01-11 | 2000-09-15 | Kolben zum Verschliessen einer Kartusche |
Country Status (5)
Country | Link |
---|---|
US (1) | US6409053B2 (de) |
EP (1) | EP1116670B1 (de) |
AT (1) | ATE263092T1 (de) |
CA (1) | CA2324763A1 (de) |
DE (1) | DE50005891D1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090283550A1 (en) * | 2008-05-16 | 2009-11-19 | Kimball James F | Extreme Barrier Metal Piston and Container Utilizing Same |
DE102010048062B4 (de) * | 2010-06-22 | 2018-08-23 | Fischbach Kg Kunststoff-Technik | Kartuschenkolben |
JP6529948B2 (ja) * | 2016-11-16 | 2019-06-12 | リューベ株式会社 | 潤滑剤用カートリッジ容器及びこれを備えた潤滑剤供給システム |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2071268A (en) * | 1980-02-16 | 1981-09-16 | Fischbach A Kunststoff Kg | End closure/expulsion piston for container for plastic material |
DE19714331A1 (de) * | 1996-11-12 | 1998-05-14 | Ritter Frank | Ausdrückkolben für Kartuschen zur Aufnahme plastischer Massen |
EP0900599A2 (de) * | 1997-07-09 | 1999-03-10 | Sonoco Products Company | Selbstentlüftender Kolben |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2197425B (en) * | 1986-11-12 | 1990-02-28 | Metal Box Plc | Pistons for pressure-dispensing containers |
US5170913A (en) * | 1991-04-22 | 1992-12-15 | The Spatz Corporation | Dispensers for fluent masses with enhanced sealing and latching |
US5127556A (en) * | 1991-07-17 | 1992-07-07 | United States Can Company | Low mass piston system for necked-in aerosol cans |
-
2000
- 2000-09-15 EP EP00810833A patent/EP1116670B1/de not_active Expired - Lifetime
- 2000-09-15 AT AT00810833T patent/ATE263092T1/de not_active IP Right Cessation
- 2000-09-15 DE DE50005891T patent/DE50005891D1/de not_active Expired - Fee Related
- 2000-10-31 CA CA002324763A patent/CA2324763A1/en not_active Abandoned
- 2000-12-21 US US09/746,629 patent/US6409053B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2071268A (en) * | 1980-02-16 | 1981-09-16 | Fischbach A Kunststoff Kg | End closure/expulsion piston for container for plastic material |
DE19714331A1 (de) * | 1996-11-12 | 1998-05-14 | Ritter Frank | Ausdrückkolben für Kartuschen zur Aufnahme plastischer Massen |
EP0900599A2 (de) * | 1997-07-09 | 1999-03-10 | Sonoco Products Company | Selbstentlüftender Kolben |
Also Published As
Publication number | Publication date |
---|---|
EP1116670B1 (de) | 2004-03-31 |
US6409053B2 (en) | 2002-06-25 |
US20010007328A1 (en) | 2001-07-12 |
CA2324763A1 (en) | 2001-07-11 |
DE50005891D1 (de) | 2004-05-06 |
ATE263092T1 (de) | 2004-04-15 |
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