EP0732270B1 - Kartusche mit zerbrechbarem Boden für pastöse Produkte - Google Patents

Kartusche mit zerbrechbarem Boden für pastöse Produkte Download PDF

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Publication number
EP0732270B1
EP0732270B1 EP95400582A EP95400582A EP0732270B1 EP 0732270 B1 EP0732270 B1 EP 0732270B1 EP 95400582 A EP95400582 A EP 95400582A EP 95400582 A EP95400582 A EP 95400582A EP 0732270 B1 EP0732270 B1 EP 0732270B1
Authority
EP
European Patent Office
Prior art keywords
zone
strip
tubular body
cartridge
weaker
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.)
Revoked
Application number
EP95400582A
Other languages
English (en)
French (fr)
Other versions
EP0732270A1 (de
Inventor
Pierre Cousseau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manufacture Bourguignonne de Plastiques
Original Assignee
Manufacture Bourguignonne de Plastiques
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8221470&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0732270(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Manufacture Bourguignonne de Plastiques filed Critical Manufacture Bourguignonne de Plastiques
Priority to EP95400582A priority Critical patent/EP0732270B1/de
Priority to AT95400582T priority patent/ATE195291T1/de
Priority to DE69518307T priority patent/DE69518307T2/de
Publication of EP0732270A1 publication Critical patent/EP0732270A1/de
Application granted granted Critical
Publication of EP0732270B1 publication Critical patent/EP0732270B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • B65D17/4011—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening completely by means of a tearing tab

Definitions

  • the present invention relates to a cartridge for pasty molded plastic product.
  • cartridges of pasty product especially grease
  • Such cartridges are intended for use with apparatus or pistols distributors.
  • the user tears off the bottom of the cartridge to allow the introduction, through the passage thus formed, of a piston pushing the product towards the outlet pasty contained in the cartridge.
  • Document US-A-4 380 303 describes an example of this type of cartridge.
  • the present invention relates to improvements brought to this type of cartridge in order to facilitate the removal of their bottom before their use in apparatus such as dispensing guns.
  • this cartridge of pasty product such as especially grease, of molded plastic material, for pistol distributor pistol, usable in said pistol as tubular body to ensure, in cooperation with said piston, the progressive delivery of fat through one of its ends, normally closed before use, by a plug, the other end of the tubular body being, before use, closed by a bottom coming directly from molding at the same time as the lateral part of the tubular body, is characterized in that the bottom is connected to the side wall of the tubular body by a connection zone with reduced resistance, so that its detachment from the tubular body before use in the dispensing gun, provides a smooth passage through which can be engaged the piston ensuring the delivery of the grease, towards the outside of the cartridge.
  • the cartridge of pasty product shown on the Figures 1 and 2 is made of molded plastic and advantageously made of polyethylene which is a material degradable. It comprises a tubular body 1 which is closed, at its left end, by a bottom 2, coming from molding with the side wall of the body 1, and which is closed, at its right end left open, by a removable cap 3.
  • This cartridge is intended to be used in a dispenser after removal from its bottom 2 so as to allow the introduction progressive, in the tubular body, of a piston, mobile from left to right, which is intended to push back gradually the pasty product through the orifice of straight outlet, the removable plug 3 having been naturally removed beforehand.
  • the latter is connected to the side wall of the tubular body 1 by a lower resistance connection zone 4, which extends between the periphery of the bottom 2 and the end of the body tubular 1.
  • This lower resistance connection zone 4 consists of a circular groove whose depth is equal to a fraction of the thickness of the bottom 2.
  • the cartridge 1 also includes, on the removable base 2, a gripping member 5, integral with the bottom 2 and which is arranged so that when pulling towards the outside of the cartridge and more particularly to the left in Figure 1, as shown by arrow f, this traction causes the uprooting of the bottom 2 and therefore its separation from the tubular body 1 along of the lower resistance connection zone 4, creating a smooth passage through which the piston can be engaged ensuring the discharge of the pasty product towards the outside, at the end of cartridge 1 which was closed by the plug 3.
  • a gripping member 5 integral with the bottom 2 and which is arranged so that when pulling towards the outside of the cartridge and more particularly to the left in Figure 1, as shown by arrow f, this traction causes the uprooting of the bottom 2 and therefore its separation from the tubular body 1 along of the lower resistance connection zone 4, creating a smooth passage through which the piston can be engaged ensuring the discharge of the pasty product towards the outside, at the end of cartridge 1 which was closed by the plug 3.
  • the strip reinforcement 11 which simply consists of an additional thickness sufficient material for traction on strip 7 for detachment according to the zones weakening 4 and 6, does not cause fracture or cutting of the strip 7 thus detached until complete separation of the bottom 2; advantageously, the strip of reinforcement 11 will extend arranged as close as possible to the weakening zone 4 according to an open circular ring of width corresponding to about 1/3 of the width of the tear strip 7 and over a height of between 2 and 3 times the average thickness of the bottom 2.
  • the strip of reinforcement 11 is itself attached to the base of a ring gripping 5 by a 10 'oblique radial connection along a lower resistance connection zone 9 connecting the weakening zone 4 external to the zone internal weakening 6.
  • the gripping ring 5 also attached to the strip 7 allows, by pulling outwards, to initiate the detachment of band 7 by initiating failure in the zone of maximum weakening corresponds to the junction of the radial loss 9 and internal circular weakening 6; Once initiated the rupture at this point, the ring 5 will cause the detachment of band 7 first along the area of lower resistance connection 9, then by traction continues along the weakening zones 4 and 6; the tear strip 7 being reinforced by strip 11 can endure significant traction providing sound detachment quickly and safely. Compared to the previous variant, we therefore observe a better security of the detachment providing better cartridge performance by reducing the area radial weakening 9 to a single groove.
  • the cartridge 1 will preferably be made of a degradable molded plastic such than, for example, polyethylene.
  • all the connecting areas at least resistance 4, 6, 8 and 9 preferably have a profile in "V" of depth such that the thickness remaining at the base "V” is conventionally sufficient to withstand the internal pressure of the load on the bottom in all circumstances and fine enough to be easily detached by manual pull of the ring 5.
  • V profile is by no means the only possible and the weakened areas could as well be on the internal face of the bottom 2.

Claims (8)

  1. Zylindrische Fettkartusche aus geformtem Kunststoff für eine Verteilerpistole mit Kolben, die in der besagten Pistole als röhrenförmiger Körper (1) verwendbar ist, um im Zusammenwirken mit dem besagten Kolben die zunehmende Verdrängung des Fettes durch eines ihrer Enden sicherzustellen, das normalerweise vor dem Gebrauch durch einen Deckel (3) verschlossen ist, wobei das andere Ende des röhrenförmigen Körpers (1) vor dem Gebrauch durch einen Boden (2) verschlossen ist, der unmittelbar vom Formen kommt, gleichzeitig wie der seitlichen Teil des röhrenförmigen Körpers (1), mit dem er durch eine Verbindungszone (4) mit geringer Festigkeit verbunden ist, die im Zusammenwirken mit einer zweiten Verbindungszone (6) mit geringer Festigkeit, welche zur ersten konzentrisch ist, zwischen ihnen einen kreisförmigen aufreißbaren Streifen (7) auf dem Boden (2) begrenzt, dessen Ende mit einem vorzugsweise von einem Ring gebildeten Zugorgan (5) verbunden ist, dadurch gekennzeichnet, dass die äußere Zone (4) und die innere Zone (6) mit mindestens einer zur Mitte des Bodens (2) hin gerichteten gekrümmten, radialen oder schräg radialen Verbindungszone mit geringer Festigkeit (8, 9) verbunden sind, wobei sie einen Aufreißstreifen (10, 10') begrenzen, so dass das Abtrennen des besagten Bodens (2) des röhrenförmigen Körpers (1) vor dem Gebrauch in der Verteilerpistole einen glatten Durchlass liefert, durch den der Kolben in Eingriff gebracht werden kann.
  2. Kartusche nach Anspruch 1, dadurch gekennzeichnet, dass ein Verstärkungsstreifen (11) auf dem aufreißbaren Streifen (7) vorgesehen und in konzentrischer Weise zwischen den beiden Verbindungszonen mit geringer Festigkeit, der äußeren (4) und der inneren (6), angeordnet ist, die untereinander durch eine radial schräge Schwächungszone (9) von derselben Art verbunden sind, wobei der besagte Verstärkungsstreifen (11) der Schwächungszone (9), die er nicht schneidet, entsprechend einer Verbindung (10') folgt, wobei er selbst am Fuß des Zugorgans (5) befestigt ist.
  3. Kartusche nach Anspruch 2, dadurch gekennzeichnet, dass der Verstärkungsstreifen (11) von einer ausreichenden Materialüberdicke gebildet wird, damit die Zugkraft an dem von den Schwächungszonen (4) und (6) begrenzten Aufreißstreifen (7) nicht zum Bruch oder Durchtrennen des besagten Streifens (7) vor seinem vollständigen Abtrennen vom röhrenförmigen Körper (1) führt.
  4. Kartusche nach dem vorangehenden Anspruch, dadurch gekennzeichnet, dass der Verstärkungsstreifen (11), der so nahe wie möglich bei der Schwächungszone (4) verläuft, gemäß einem offenen Kreisring mit einer Breite, die ungefähr 1/3 der Breite des Aufreißstreifens (7) entspricht, sowie über eine Höhe, die zwischen dem zwei- und dreifachen der mittleren Dicke des Bodens (2) liegt.
  5. Kartusche nach einem der vorangehenden Ansprüche 2, 3 oder 4, dadurch gekennzeichnet, dass der Verstärkungsstreifen (11) wahlweise auf der Innen- oder Außenseite des Bodens (2) angeordnet sein kann.
  6. Kartusche nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Verbindungszonen mit geringer Festigkeit (4, 6, 8 und 9) ein "V"-Profil aufweisen, mit einer solchen Tiefe, dass die Dicke des an der Basis des "V" verbleibenden Streifens ausreichend ist, um dem Druck der inneren Füllung auf den Boden unter allen Umständen standzuhalten, und ausreichend dünn, um durch eine manuelle Zugkraft am Ring (5) leicht aufgerissen zu werden.
  7. Kartusche nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass alle Verbindungszonen mit geringer Festigkeit (4, 6, 8 und 9) ebenso gut auf der Innen- wie auf der Außenseite des Bodens (2) angeordnet sein können.
  8. Kartusche nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass sie aus einem abbaubaren geformten Kunststoff, wie Polyethylen, hergestellt ist.
EP95400582A 1995-03-16 1995-03-16 Kartusche mit zerbrechbarem Boden für pastöse Produkte Revoked EP0732270B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP95400582A EP0732270B1 (de) 1995-03-16 1995-03-16 Kartusche mit zerbrechbarem Boden für pastöse Produkte
AT95400582T ATE195291T1 (de) 1995-03-16 1995-03-16 Kartusche mit zerbrechbarem boden für pastöse produkte
DE69518307T DE69518307T2 (de) 1995-03-16 1995-03-16 Kartusche mit zerbrechbarem Boden für pastöse Produkte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95400582A EP0732270B1 (de) 1995-03-16 1995-03-16 Kartusche mit zerbrechbarem Boden für pastöse Produkte

Publications (2)

Publication Number Publication Date
EP0732270A1 EP0732270A1 (de) 1996-09-18
EP0732270B1 true EP0732270B1 (de) 2000-08-09

Family

ID=8221470

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95400582A Revoked EP0732270B1 (de) 1995-03-16 1995-03-16 Kartusche mit zerbrechbarem Boden für pastöse Produkte

Country Status (3)

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EP (1) EP0732270B1 (de)
AT (1) ATE195291T1 (de)
DE (1) DE69518307T2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010015980U1 (de) 2010-11-29 2011-03-03 König, Christian Vorrichtung zum dosierten Auftragen und Verteilen von hochviskosen Stoffen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2928000A1 (de) * 1978-07-26 1980-02-21 Tokan Kogyo Co Ltd Muehelos zu oeffnendes deckelteil
US4380303A (en) * 1980-11-10 1983-04-19 Buckeye Molding Company Molded container and opening means therefore
JPH0596687A (ja) * 1991-10-11 1993-04-20 Yoshida Kogyo Kk <Ykk> 樹脂容器

Also Published As

Publication number Publication date
DE69518307D1 (de) 2000-09-14
DE69518307T2 (de) 2001-06-13
ATE195291T1 (de) 2000-08-15
EP0732270A1 (de) 1996-09-18

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