EP0732270B1 - Cartouche pour produits pateux munie d'un fond frangible - Google Patents
Cartouche pour produits pateux munie d'un fond frangible Download PDFInfo
- 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
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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.
Description
- La figure 1 est une vue en élévation, avec arrachement partiel, d'une cartouche de produit pâteux suivant l'invention.
- La figure 2 est une vue frontale, prise de la gauche sur la figure 1, montrant le fond de la cartouche pourvu de zones de liaison à moindre résistance.
- La figure 3 est une vue frontale correspondant à une seconde variante du fond de la cartouche conforme à l'invention pourvue de zones de liaison à moindre résistance déterminant une zone d'arrachement munie d'une bande de renfort.
- La figure 4 est une vue en élévation partielle et en coupe IV-IV du fond de la cartouche conforme à l'invention selon la variante représentée en figure 3.
Claims (8)
- Cartouche de graisse cylindrique, en matière plastique moulée, pour pistolet distributeur à piston, utilisable dans ledit pistolet comme corps tubulaire (1) pour assurer, en coopération avec ledit piston, le refoulement progressif de la graisse à travers l'une de ses extrémités, normalement obturée avant utilisation, par un bouchon (3), l'autre extrémité du corps tubulaire (1) étant, avant utilisation, fermée par un fond (2) venant directement de moulage en même temps que la partie latérale du corps tubulaire (1), à laquelle il est relié par une zone de liaison (4) à moindre résistance, qui, en coopération avec une seconde zone de liaison (6), à moindre résistance, concentrique de la première, délimite entre elles une bande arrachable circulaire (7) sur le fond (2) dont l'extrémité est reliée à un organe de préhension (5), avantageusement constitué d'un anneau, caractérisé en ce que la zone externe (4) et la zone interne (6) sont reliées à au moins une zone de liaison courbe, radiale ou radiale oblique, à moindre résistance (8,9) dirigées vers le centre du fond (2), en délimitant une bande d'arrachage (10,10'), de telle manière que le détachement dudit fond (2) du corps tubulaire (1) avant utilisation dans le pistolet distributeur, procure un passage lisse au travers duquel peut être engagé le piston
- Cartouche selon la revendication 1, caractérisée en ce qu'une bande de renfort (11) est prévue sur la bande arrachable (7) et disposée de manière concentrique entre les deux zones de liaison à moindre résistance (4) externe et (6) interne, reliées entre-elles par une zone d'affaiblissement (9) radiale oblique du même type, ladite bande de renfort (11) poursuivant selon une liaison (10') la zone d'affaiblissement (9) qu'elle ne coupe pas, étant elle-même rattachée à la base de organe de préhension (5)
- Cartouche suivant la revendication 2 caractérisée en ce que la bande de renfort (11) est formée par une sur-épaisseur de matière suffisante pour que la traction sur la bande d'arrachage (7) délimitée par les zones d'affaiblissement (4) et (6) n'entraíne pas de fracture ou de coupure de ladite bande (7) avant son complet détachement du corps tubulaire (1).
- Cartouche selon la revendication précédente caractérisée en ce que la bande de renfort (11) qui s'étend le plus près possible de la zone d'affaiblissement (4) selon un anneau circulaire ouvert de largeur correspondant à environ 1/3 de la largeur de ladite bande d'arrachage (7) et sur une hauteur comprise entre deux et trois fois l'épaisseur moyenne du fond (2).
- Cartouche selon l'un quelconques des revendications 2, 3 ou 4 caractérisée en ce que la bande de renfort (11) peut être indifféremment disposée sur la face intérieure ou extérieure du fond (2).
- Cartouche selon l'une quelconque des revendications précédentes caractérisée en ce que les zones de liaison à moindre résistance (4, 6 8 et 9) ont un profil en "V" de profondeur telle que l'épaisseur de la bande restante à la base du "V" soit suffisante pour résister à la pression de la charge interne sur le fond (2) en toutes circonstances, et suffisamment fine pour être facilement détachée par traction manuelle de l'anneau (5).
- Cartouche selon l'une quelconque des revendications précédentes caractérisée en ce que toutes les zones de liaison à moindre résistance (4, 6, 8 et 9) peuvent être aussi bien disposées sur la face intérieure qu'extérieure du fond (2).
- Cartouche selon l'une quelconque des revendications précédentes caractérisée en ce qu'elle est réalisée en une matière plastique moulée dégradable telle que le polyéthylène.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69518307T DE69518307T2 (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 |
EP95400582A EP0732270B1 (fr) | 1995-03-16 | 1995-03-16 | Cartouche pour produits pateux munie d'un fond frangible |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95400582A EP0732270B1 (fr) | 1995-03-16 | 1995-03-16 | Cartouche pour produits pateux munie d'un fond frangible |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0732270A1 EP0732270A1 (fr) | 1996-09-18 |
EP0732270B1 true EP0732270B1 (fr) | 2000-08-09 |
Family
ID=8221470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95400582A Revoked EP0732270B1 (fr) | 1995-03-16 | 1995-03-16 | Cartouche pour produits pateux munie d'un fond frangible |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0732270B1 (fr) |
AT (1) | ATE195291T1 (fr) |
DE (1) | DE69518307T2 (fr) |
Families Citing this family (1)
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)
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 |
-
1995
- 1995-03-16 AT AT95400582T patent/ATE195291T1/de not_active IP Right Cessation
- 1995-03-16 EP EP95400582A patent/EP0732270B1/fr not_active Revoked
- 1995-03-16 DE DE69518307T patent/DE69518307T2/de not_active Revoked
Also Published As
Publication number | Publication date |
---|---|
DE69518307T2 (de) | 2001-06-13 |
EP0732270A1 (fr) | 1996-09-18 |
ATE195291T1 (de) | 2000-08-15 |
DE69518307D1 (de) | 2000-09-14 |
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