EP4208390B1 - Hollow glass container having a specific lip profile - Google Patents

Hollow glass container having a specific lip profile Download PDF

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Publication number
EP4208390B1
EP4208390B1 EP21778175.6A EP21778175A EP4208390B1 EP 4208390 B1 EP4208390 B1 EP 4208390B1 EP 21778175 A EP21778175 A EP 21778175A EP 4208390 B1 EP4208390 B1 EP 4208390B1
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EP
European Patent Office
Prior art keywords
container
type
ring
threads
rim
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EP21778175.6A
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German (de)
French (fr)
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EP4208390A1 (en
Inventor
Eric Martin
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Verallia Packaging SAS
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Verallia Packaging SAS
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    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/40—Details of walls
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/10—Jars, e.g. for preserving foodstuffs

Definitions

  • the present invention relates to a hollow glass container comprising a ring having a specific rim profile.
  • the rim designates the upper part of the ring forming the opening of the container.
  • the notched caps intended to close these containers have a circular groove at the bottom of which there is a seal.
  • this seal is intended to compress on the edge of the ring forming the opening of the container.
  • the high value of the opening torque required to open conventional containers may be due to the fact that current container ring and capsule geometries allow free compression of the seal. This compression of the joint can lead to excessive deformation of the joint, also called punching of the joint. It can also lead to an increase in the surface area in contact between the rim and the seal. Therefore, the tribological constraint to be overcome in order to open the container is aggravated.
  • FIG. 1 a hollow glass container of the prior art is shown, for example intended to package jam.
  • the container 1 comprises a generally cylindrical body 2 having a closed lower end 2a forming the bottom of the container 1, and an upper end 2b opened.
  • the upper end 2b is formed of a ring 3 having an external wall 3a provided with threads 4 and an upper part called rim 5.
  • container 1 of the prior art of the Figure 1 is intended to be closed in a conventional manner by means of a capsule 6 having notches 7 configured to cooperate with the threads 4 of the external wall 3a of the ring 3 in order to screw the capsule 6 onto the ring 3.
  • the capsule 6 has also a circular groove 8 at the bottom of which there is a seal 9 also circular. When the capsule 6 is screwed onto the ring 3 of the container 1, the seal 9 is compressed on the rim 5.
  • the rim 5 may have differences in flatness, with high points 5a and low points 5b.
  • the dimensional deviations of the ring 3, and in particular of the rim 5, expose the areas of the seal 9 which are in contact with the high points 5a to increased joint punching depths.
  • a cross section of a circular groove 8 of a capsule 6 of the Figure 2 is shown a cross section of a circular groove 8 of a capsule 6 of the Figure 2 , with the seal 9 in new condition, in other words before any use of the capsule 6 for the purpose of closing a container 1.
  • the seal 9 is for example a seal cast in PVC (chloride polyvinyl).
  • This length of arc of contact (Arc) corresponds to the arc of a circle between the two straight lines A1 and A2 indicated on the Figure 6 .
  • This contact arc length is calculated after reading the profile by a probe or by non-contact optical method.
  • the contact arc length corresponds to the sum of the distances calculated between the successive points involved in the drinking/joint contact zone.
  • we also measure for the imprint 10 a height of this contact arc corresponding to the punching height, indicated by Hp on the Figure 6 .
  • the present invention aims to remedy this need by providing a hollow glass container comprising a ring having a specific rim profile.
  • the present invention thus relates to a hollow glass container comprising a ring intended to cooperate with a notched capsule to close said container, characterized in that said ring has a rim whose cross section has a profile substantially in the shape of an ogive, said profile defining for the warhead a base having a center, two sides, and a vertex, said vertex being aligned with a point located at the center of the base or offset in the direction of an interior of the container relative to said point located at center of the base.
  • the profile of the rim of the container according to the invention is similar to a broken arc whose top is free of flat areas.
  • the specific profile of the rim of the container according to the invention makes it possible to significantly reduce the length of the arc of contact between the rim and the seal of a capsule closing the container, at a comparable punching height.
  • the specific profile of the rim of the container according to the invention makes it possible to reduce the contact arc lengths by 27 to 60% compared to a standard rim profile as shown in Figure 4 .
  • said vertex has an arcuate shape having a radius Rs ranging from 0.10 to 1.25 mm, preferably from 0.40 to 1.00 mm.
  • the top of the warhead is thus free from any flat areas.
  • Rs can be equal to 0.80 mm.
  • the top of the warhead is aligned with a point located in the center of the base of the warhead.
  • the profile of the rim can thus define a symmetrical ogive.
  • the profile of the rim of the container according to the invention defines an asymmetrical ogive, the top of the ogive being offset in the direction of inside the container, relative to a point located in the center of the base of the warhead.
  • Such an embodiment can have the advantage of more easily controlling the reflux of material from the seal of the capsule onto the sides of the rim during storage of the closed container.
  • Such an embodiment also makes it possible to advantageously reduce the length of the arc of contact between the rim and the seal of a capsule closing the container, at a comparable punching height, compared to an embodiment, not according to the invention, in which the top of the warhead would be offset in the direction of the exterior of the container relative to a point located in the center of the base of the warhead.
  • the base of the warhead has a width Lp ranging from 1.0 mm to 10.0 mm, preferably from 2.0 mm to 6.0 mm.
  • the height Hs of the ogive, from the base to its top ranges from 0.5 mm to 5 mm, preferably from 1.0 mm to 3.0 mm.
  • the side of the warhead located towards the inside of the container joins the generally rectilinear profile of an interior wall of the ring along an arc of a circle having a radius Ri ranging from 0.10 mm to 1, 25 mm, preferably ranging from 0.40 mm to 1.00 mm.
  • the side of the warhead located towards the inside of the container may itself be slightly curved or substantially rectilinear.
  • the side of the cone located towards the outside of the container joins the generally rectilinear profile of an outer wall of the ring along an arc of a circle having a radius Re ranging from 0.10 mm to 1, 25 mm, preferably ranging from 0.40 mm to 1.00 mm.
  • the side of the warhead located towards the outside of the container may itself be slightly curved or substantially rectilinear.
  • the ring of the container according to the invention can also be provided on its outer wall with particular threads making it possible to limit the tightening of the capsule on the container when closing the container. This limitation of the tightening of the capsule also makes it possible to reduce the opening torque necessary to open the container. Thus, people with little strength in their hands can open the container according to the invention more easily.
  • the outer wall of the ring is provided with at least one thread of a first type, said thread of the first type being intended to cooperate with the notches of the capsule intended to close said container, said net of the first type comprising, from top to bottom, a first inclined net segment, a second substantially horizontal net segment, and a third inclined net segment, said third net segment being further provided with a anti-screwing stop.
  • the outer wall of the ring is provided with at least two such threads of a first type, diametrically opposed.
  • the first thread segment inclined, allows the initiation of screwing and the progressive crushing of the seal during tightening.
  • the presence of the anti-screwing stop on the third thread segment prevents excessive tightening of the capsule. This is particularly advantageous when the capsules are screwed onto the containers industrially by machines, such as cappers, which apply tightening torques automatically.
  • the outer wall of the ring can be provided with at least four such threads of the first type, said four threads of the first type being diametrically opposed in pairs.
  • the outer wall of the ring is provided with at least one thread of a second type, said thread of the second type being intended to cooperate with the notches of the capsule intended to close said containing, said net of the second type comprising, from top to bottom, a first inclined net segment, a second substantially horizontal net segment, and a third net segment, said third net segment being free of anti- screwing.
  • the outer wall of the ring can for example be provided with at least two such threads of the second type, diametrically opposed.
  • the outer wall of the ring can be provided with four threads of the second type, said four threads of the second type being diametrically opposed in pairs.
  • the outer wall of the ring can be provided with both threads of the first type and threads of the second type.
  • the outer wall of the ring is provided with threads of the second type only.
  • the distance going from the second horizontal thread segment of the first type threads to the top of the ogive of the rim has a value k ranging from 4.0 mm to 20.0 mm, preferably from 7.0mm to 15.0mm.
  • the container according to the invention can be manufactured by known methods of manufacturing glass containers, such as for example the press-blown process or the blown-blown process.
  • the container 20 is hollow and is made of glass. It comprises a cylindrical body 21 defining an interior 20a of the container 20, having a closed lower end 21a forming the bottom of the container 20 and an open upper end 21b.
  • the upper end 21b is formed of a ring 22 having an outer wall 22a provided with threads 23, an inner wall 22b, and a rim 24 having an ogive-shaped profile.
  • the threads 23 are intended to cooperate with the notches 7 of a capsule 6 as described in Figure 2 , intended to be screwed and tightened on the ring 22 to close the container 20.
  • the profile of the rim 24 of the container 20 defines for the cone a base 25, a first side 26a located towards the inside 20a of the container 20, a second side 26b, located towards the outside of the container 20, and a peak 27.
  • the base 25 is formed of the horizontal line connecting the place where the first sidewall 26a joins the generally rectilinear profile of the interior wall 22b of the ring 22 to the place where the second sidewall 26b joins the generally rectilinear profile of the wall outer 22a of the ring 22.
  • the top 27 is aligned vertically on a point (not shown) which would be located in the center of the base 25.
  • the ogive defined by the profile of the rim 24 is a symmetrical ogive.
  • the vertex 27 has an arcuate shape having a radius Rs as indicated on the Figure 8 .
  • the top of the warhead is thus free from any flat areas.
  • the radius Rs can range from 0.10 to 1.25 mm, preferably from 0.40 to 1.00 mm.
  • Rs can be equal to 0.80 mm.
  • the base 25 of the warhead may have a width Lp ranging from 1.0 mm to 10.0 mm, preferably from 2.0 mm to 6.0 mm.
  • the height Hs of the warhead, from the base 25 to its top 27, can range from 0.5 mm to 5 mm, preferably from 1.0 mm to 3.0 mm.
  • the first side 26a of the warhead located towards the interior 20a of the container 20, joins the generally rectilinear profile of an interior wall 22b of the ring 22 along an arc of a circle having a radius Ri.
  • the radius Ri can range from 0.10 mm to 1.25 mm, preferably ranging from 0.40 mm to 1.00 mm.
  • the second flank 26b of the warhead located towards the outside of the container 20, joins the generally rectilinear profile of the outer wall 22a of the ring 22 along an arc of a circle having a radius Re.
  • the radius Re can range from 0, 10mm to 1.25mm, preferably ranging from 0.40mm to 1.00mm.
  • the cone defined by the profile of the rim 24 could be asymmetrical, the top 27 of the cone being offset in the direction of the interior 20a of the container 20 relative to a point located at the center of the base 25 of the warhead.
  • Such an embodiment has the advantage of more easily controlling the reflux of material coming from the seal of the capsule closing the container 20 during storage of the closed container 20.
  • the threads 23 comprise threads of first type 28.
  • Each thread of first type 28 comprises from top to bottom, as shown in the Figure 8 , a first inclined thread segment 28a, a second substantially horizontal thread segment 28b, and a third inclined thread segment 28c.
  • the third thread segment 28c is provided with an anti-screwing stop 29.
  • the first thread segment 28a inclined, allows the initiation of screwing and the progressive crushing of the seal 9 of the capsule 6 during tightening .
  • the presence of the anti-screwing stop 29 on the third thread segment 28c makes it possible to prevent excessive tightening of the capsule 6.
  • first thread segments 28a may have an angle of inclination, relative to a horizontal straight line, of approximately 6.3°.
  • the length of these first thread segments 28a, on the circumference of the circular outer wall 22a of the ring 22, can for example be approximately 12°.
  • the length of the second thread segments 28b, on the circumference of the circular outer wall 22a of the ring 22, can for example be approximately 22°.
  • the first type threads 28 may be present on the circumference of the outer wall 22a of the ring 22 in number at least one, or even two, four, six or more, diametrically opposed in pairs.
  • the threads 23 also include second type threads 30.
  • Each second type thread 30 comprises from top to bottom, a first inclined thread segment 30a, a second substantially horizontal thread segment 30b, and a third thread segment 30c. thread, said third thread segment 30c being free of anti-screwing stop.
  • the second type threads 30 can for example be present on the circumference of the outer wall 22a of the ring 22, two in number.
  • the ring 22 is provided with a total of six threads 23, for example four first type threads 28 and two second type threads 30.
  • the ring is only provided with threads of the second type.
  • the first type 28 and/or second type 30 threads make it possible to limit the tightening of the capsule 6 on the container when closing the container 20.
  • the profile of the standard rim 5 had the shape shown on the Figure 4 .
  • the containers 20 according to the invention and the containers 1 of the prior art were closed by capsules 6 with notches 7 as shown on the Figure 2 .
  • Seal 9 was a standard cast PVC seal.
  • the capsules were screwed and tightened using a capper with an identical tightening torque for all of the containers.
  • FIG. 10 shows the evolution of the contact arc length (Arc) as a function of the punching height (Hp) for containers 1 of the prior art having a standard rim 5 (dotted curve) and for containers 20 according to the invention having the rim 24 (solid line curve).
  • the containers 20 according to the invention make it possible to significantly reduce the arc length of contact between the rim 24 and the seal 9 of the capsule 6.
  • the opening torque that it is necessary to exercise in order to open the containers 20 according to the invention is significantly less important than that which it is necessary to exercise to open the containers 1 of the prior art.
  • FIG. 11 takes the graph of the Figure 10 by expressing it in the form of a difference in contact arc length of the rim 24 of the containers 20 according to the invention as a percentage compared to the standard rim 5 of the containers 1 of the prior art.
  • the contact arc lengths can be reduced by 38% compared to containers 1 of the prior art.
  • the reductions in contact arc length obtained with the rim 24 of the containers 20 according to the invention make it possible to significantly reduce the value of the opening torque necessary to open the containers 20 after screwing, capping and storage.
  • the opening torque can be reduced by at least 10%, preferably by at least 15%, and for example up to 36%, with the rim 24 of the container 20 according to the invention.
  • the containers according to the invention thus have the advantage of being able to both store food in a sealed and safe manner for significant periods, while being easy to open.
  • the containers according to the invention can be opened by people with little strength in their hands or by elderly people.

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Closures For Containers (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Description

La présente invention se rapporte à un contenant creux en verre comprenant une bague présentant un profil de buvant spécifique.The present invention relates to a hollow glass container comprising a ring having a specific rim profile.

Dans le domaine des contenants creux en verre, le buvant désigne la partie supérieure de la bague formant l'ouverture du contenant.In the field of hollow glass containers, the rim designates the upper part of the ring forming the opening of the container.

Le conditionnement de produits dans des contenants creux en verre fermés par des capsules à crans, comme par exemple les pots classiques de confiture, présente l'inconvénient de générer parfois des couples d'ouverture très élevés difficiles à vaincre par certains utilisateurs, par exemple par les personnes âgées ou par les personnes ayant peu de force dans les mains. Ce phénomène peut s'accentuer au cours du temps ou lorsque les contenants, par exemple les pots, sont stockés sous charge verticale.The packaging of products in hollow glass containers closed with notched caps, such as for example conventional jam jars, has the disadvantage of sometimes generating very high opening torques which are difficult to overcome by certain users, for example by the elderly or by people with little strength in their hands. This phenomenon can increase over time or when containers, for example pots, are stored under vertical load.

En général, les capsules à crans destinées à fermer ces contenants présentent une gorge circulaire au fond de laquelle se trouve un joint d'étanchéité. Lors de la fermeture du contenant, ce joint d'étanchéité est destiné à venir se comprimer sur le buvant de la bague formant l'ouverture du contenant.In general, the notched caps intended to close these containers have a circular groove at the bottom of which there is a seal. When closing the container, this seal is intended to compress on the edge of the ring forming the opening of the container.

La valeur élevée du couple d'ouverture nécessaire pour ouvrir les contenants classiques peut être due au fait que les géométries actuelles de bague de contenant et de capsule autorisent une libre compression du joint d'étanchéité. Cette compression du joint peut entraîner une déformation excessive de ce dernier, encore appelée poinçonnement du joint. Elle peut également entraîner l'augmentation de la surface en contact entre le buvant et le joint. Dès lors, la contrainte tribologique à vaincre pour ouvrir le contenant est aggravée.The high value of the opening torque required to open conventional containers may be due to the fact that current container ring and capsule geometries allow free compression of the seal. This compression of the joint can lead to excessive deformation of the joint, also called punching of the joint. It can also lead to an increase in the surface area in contact between the rim and the seal. Therefore, the tribological constraint to be overcome in order to open the container is aggravated.

La compression excessive du joint d'étanchéité peut être produite de façon continue sur toute la circularité de ce dernier, par un serrage excessif de la capsule sur la bague du contenant. Cette compression excessive peut également se matérialiser de façon locale, du fait d'écarts géométriques de planéité de bagues, également appelé voile. Si ces écarts géométriques sont importants, ils peuvent aboutir à une déformation du buvant en forme de « selle de cheval » : autrement dit, le buvant présente deux points hauts (pics) diamétralement opposés, et deux points bas (vallées), également diamétralement opposés, situés à 90° des deux points hauts. FR 2 900 143 A1 divulgue un contenant creux en verre selon le préambule de la revendication indépendante 1.Excessive compression of the seal can be produced continuously over the entire circularity of the latter, by excessive tightening of the capsule on the ring of the container. This excessive compression can also materialize locally, due to geometric deviations in the flatness of the rings, also called veil. If these geometric differences are significant, they can result in a deformation of the rim in the shape of a “horse saddle”: in other words, the rim has two diametrically opposed high points (peaks), and two low points (valleys), also diametrically opposed. , located at 90° from the two high points. FR 2 900 143 A1 discloses a hollow glass container according to the preamble of independent claim 1.

Sur la Figure 1 est représenté un contenant 1 creux en verre de l'art antérieur par exemple destiné à conditionner de la confiture.On the Figure 1 a hollow glass container of the prior art is shown, for example intended to package jam.

Le contenant 1 comprend un corps 2 globalement cylindrique présentant une extrémité inférieure 2a fermée formant le fond du contenant 1, et une extrémité supérieure 2b ouverte. L'extrémité supérieure 2b est formée d'une bague 3 présentant une paroi externe 3a munie de filets 4 et une partie supérieure qu'on appelle buvant 5.The container 1 comprises a generally cylindrical body 2 having a closed lower end 2a forming the bottom of the container 1, and an upper end 2b opened. The upper end 2b is formed of a ring 3 having an external wall 3a provided with threads 4 and an upper part called rim 5.

En référence à la Figure 2, le contenant 1 de l'art antérieur de la Figure 1 est destiné à être fermé de façon classique au moyen d'une capsule 6 présentant des crans 7 configurés pour coopérer avec les filets 4 de la paroi externe 3a de la bague 3 afin de visser la capsule 6 sur la bague 3. La capsule 6 présente également une gorge circulaire 8 au fond de laquelle est présente un joint d'étanchéité 9 également circulaire. Lorsque la capsule 6 est vissée sur la bague 3 du contenant 1, le joint d'étanchéité 9 vient se comprimer sur le buvant 5.In reference to the Figure 2 , container 1 of the prior art of the Figure 1 is intended to be closed in a conventional manner by means of a capsule 6 having notches 7 configured to cooperate with the threads 4 of the external wall 3a of the ring 3 in order to screw the capsule 6 onto the ring 3. The capsule 6 has also a circular groove 8 at the bottom of which there is a seal 9 also circular. When the capsule 6 is screwed onto the ring 3 of the container 1, the seal 9 is compressed on the rim 5.

Comme expliqué ci-dessus, et comme il apparaît de la Figure 1, la bague 3 étant en verre, le buvant 5 peut présenter des écarts de planéité, avec des points hauts 5a et des points bas 5b.As explained above, and as it appears from the Figure 1 , the ring 3 being made of glass, the rim 5 may have differences in flatness, with high points 5a and low points 5b.

En référence à la Figure 2, en fonction de la rigidité de la capsule 6 utilisée et de son diamètre, les écarts dimensionnels de la bague 3, et en particulier du buvant 5, exposent les zones du joint d'étanchéité 9 qui sont en contact avec les points hauts 5a à des profondeurs de poinçonnement de joint accrues.In reference to the Figure 2 , depending on the rigidity of the capsule 6 used and its diameter, the dimensional deviations of the ring 3, and in particular of the rim 5, expose the areas of the seal 9 which are in contact with the high points 5a to increased joint punching depths.

En référence à la Figure 3 et à la Figure 4 qui en est une vue partielle à plus grande échelle, est montré le profil d'une coupe transversale du buvant 5 d'un contenant 1 classique de l'art antérieur comme montré à la Figure 1. Ce profil de buvant 5 standard a la forme d'un arc 5c qui se rapproche globalement de ce que l'on pourrait appeler un arc en plein cintre présentant un léger méplat 5d au somment de l'arc.In reference to the Figure 3 and to the Figure 4 which is a partial view on a larger scale, is shown the profile of a cross section of the rim 5 of a classic container 1 of the prior art as shown in Figure 1 . This standard drinking profile 5 has the shape of a 5c arc which is generally similar to what one could call a semicircular arch presenting a slight flat 5d at the top of the arc.

En référence à la Figure 5, est montrée une coupe transversale d'une gorge circulaire 8 d'une capsule 6 de la Figure 2, avec le joint d'étanchéité 9 à l'état neuf, autrement dit avant toute utilisation de la capsule 6 en vue de la fermeture d'un contenant 1. Le joint d'étanchéité 9 est par exemple un joint coulé en PVC (chlorure de polyvinyle).In reference to the Figure 5 , is shown a cross section of a circular groove 8 of a capsule 6 of the Figure 2 , with the seal 9 in new condition, in other words before any use of the capsule 6 for the purpose of closing a container 1. The seal 9 is for example a seal cast in PVC (chloride polyvinyl).

En référence à la Figure 6 est montrée la coupe transversale de la gorge circulaire 8 et du joint d'étanchéité 9 de la Figure 5 après que la capsule 6 a été vissée et serrée sur un contenant 1 présentant le buvant 5 de profil montré à la Figure 4 et que le contenant 1 a été maintenu fermé pendant 7 jours. Comme il apparaît de cette Figure 6, le joint 9 a été comprimé par le buvant 5 de la Figure 4 et a été déformé. Le joint d'étanchéité 9 présente ainsi une empreinte 10 en forme d'arc de cercle. Comme il apparaît également de cette Figure 6, le buvant 5, en s'emboîtant dans le joint d'étanchéité 9 a repoussé de la matière du joint 9 de part et d'autre de l'empreinte 10, cette matière formant des bourrelets 11. On mesure ainsi pour l'empreinte 10 une longueur d'arc de cercle située entre les deux bourrelets 11 correspondant à la longueur d'Arc de contact (Arc) entre le buvant 5 et le joint d'étanchéité 9. Cette longueur d'Arc de contact (Arc) correspond à l'arc de cercle compris entre les deux droites A1 et A2 indiquées sur la Figure 6. Cette longueur d'Arc de contact est calculée après relevé du profil par un palpeur ou bien par méthode optique sans contact. La longueur d'Arc de contact correspond à la somme des distances calculées entre les points successifs impliqués dans la zone de contact buvant/joint. De la même manière, on mesure également pour l'empreinte 10 une hauteur de cet arc de contact correspondant à la Hauteur de poinçonnement, indiquée par Hp sur la Figure 6.In reference to the Figure 6 is shown the cross section of the circular groove 8 and the seal 9 of the Figure 5 after the capsule 6 has been screwed and tightened on a container 1 presenting the rim 5 in profile shown in Figure 4 and that container 1 was kept closed for 7 days. As it appears from this Figure 6 , the seal 9 has been compressed by the rim 5 of the Figure 4 and was distorted. The seal 9 thus has an imprint 10 in the shape of an arc of a circle. As it also appears from this Figure 6 , the rim 5, by fitting into the seal 9, has pushed back material from the seal 9 on either side of the imprint 10, this material forming beads 11. We thus measure for the imprint 10 a length of arc of circle located between the two beads 11 corresponding to the length of arc of contact (Arc) between the rim 5 and the seal 9. This length of arc of contact (Arc) corresponds to the arc of a circle between the two straight lines A1 and A2 indicated on the Figure 6 . This contact arc length is calculated after reading the profile by a probe or by non-contact optical method. The contact arc length corresponds to the sum of the distances calculated between the successive points involved in the drinking/joint contact zone. In the same way, we also measure for the imprint 10 a height of this contact arc corresponding to the punching height, indicated by Hp on the Figure 6 .

Il a été constaté que plus la hauteur de poinçonnement, autrement dit plus la valeur de Hp, est importante, et/ou plus la longueur d'Arc de contact (Arc) est importante, plus le couple d'ouverture nécessaire pour parvenir à ouvrir le contenant est élevé.It was found that the greater the punching height, in other words the greater the value of Hp, and/or the greater the contact arc length (Arc), the greater the opening torque required to successfully open the container is elevated.

Ainsi, il subsiste le besoin d'un contenant creux en verre dont le buvant permettrait de réduire le couple d'ouverture nécessaire pour ouvrir un tel contenant après qu'il a été fermé, potentiellement pasteurisé ou stérilisé, et maintenu fermé pendant une période significative, par exemple plusieurs mois, dans une position de stockage.Thus, there remains a need for a hollow glass container whose rim would reduce the opening torque necessary to open such a container after it has been closed, potentially pasteurized or sterilized, and kept closed for a significant period. , for example several months, in a storage position.

La présente invention vise à remédier à ce besoin en fournissant un contenant creux en verre comprenant une bague présentant un profil de buvant spécifique.The present invention aims to remedy this need by providing a hollow glass container comprising a ring having a specific rim profile.

La présente invention porte ainsi sur un contenant creux en verre comprenant une bague destinée à coopérer avec une capsule à crans pour fermer ledit contenant, caractérisé en ce que ladite bague présente un buvant dont la coupe transversale présente un profil substantiellement en forme d'ogive, ledit profil définissant pour l'ogive une base présentant un centre, deux flancs, et un sommet, ledit sommet étant aligné sur un point situé au centre de la base ou décalé dans la direction d'un intérieur du contenant par rapport audit point situé au centre de la base.The present invention thus relates to a hollow glass container comprising a ring intended to cooperate with a notched capsule to close said container, characterized in that said ring has a rim whose cross section has a profile substantially in the shape of an ogive, said profile defining for the warhead a base having a center, two sides, and a vertex, said vertex being aligned with a point located at the center of the base or offset in the direction of an interior of the container relative to said point located at center of the base.

Ainsi, le profil du buvant du contenant selon l'invention se rapproche d'un arc brisé dont le sommet est exempt de méplat.Thus, the profile of the rim of the container according to the invention is similar to a broken arc whose top is free of flat areas.

Le profil spécifique du buvant du contenant selon l'invention permet de réduire significativement la longueur de l'arc de contact entre le buvant et le joint d'étanchéité d'une capsule fermant le contenant, à hauteur de poinçonnement comparable. Par exemple, il a été constaté que le profil spécifique du buvant du contenant selon l'invention permet de réduire les longueurs d'Arc de contact de 27 à 60% par rapport à un profil de buvant standard tel que montré à la Figure 4.The specific profile of the rim of the container according to the invention makes it possible to significantly reduce the length of the arc of contact between the rim and the seal of a capsule closing the container, at a comparable punching height. For example, it was found that the specific profile of the rim of the container according to the invention makes it possible to reduce the contact arc lengths by 27 to 60% compared to a standard rim profile as shown in Figure 4 .

Ainsi, dans une forme de réalisation, ledit sommet présente une forme en arc de cercle présentant un rayon Rs allant de 0,10 à 1,25 mm, de préférence de 0,40 à 1,00 mm. Le sommet de l'ogive est ainsi exempt de tout méplat. Par exemple, Rs peut être égal à 0,80 mm.Thus, in one embodiment, said vertex has an arcuate shape having a radius Rs ranging from 0.10 to 1.25 mm, preferably from 0.40 to 1.00 mm. The top of the warhead is thus free from any flat areas. For example, Rs can be equal to 0.80 mm.

Dans une forme de réalisation, le sommet de l'ogive est aligné sur un point situé au centre de la base de l'ogive. Dans un tel cas, le profil du buvant peut ainsi définir une ogive symétrique.In one embodiment, the top of the warhead is aligned with a point located in the center of the base of the warhead. In such a case, the profile of the rim can thus define a symmetrical ogive.

Dans une forme de réalisation de l'invention, le profil du buvant du contenant selon l'invention définit une ogive asymétrique, le sommet de l'ogive étant décalé dans la direction de l'intérieur du contenant, par rapport à un point situé au centre de la base de l'ogive. Une telle forme de réalisation peut présenter l'avantage de maîtriser plus aisément le reflux de matière du joint de la capsule sur les flancs du buvant lors du stockage du contenant fermé. Une telle forme de réalisation permet également de réduire avantageusement la longueur de l'arc de contact entre le buvant et le joint d'étanchéité d'une capsule fermant le contenant, à hauteur de poinçonnement comparable, par rapport à une forme de réalisation, non conforme à l'invention, dans laquelle le sommet de l'ogive serait décalé dans la direction de l'extérieur du contenant par rapport à un point situé au centre de la base de l'ogive.In one embodiment of the invention, the profile of the rim of the container according to the invention defines an asymmetrical ogive, the top of the ogive being offset in the direction of inside the container, relative to a point located in the center of the base of the warhead. Such an embodiment can have the advantage of more easily controlling the reflux of material from the seal of the capsule onto the sides of the rim during storage of the closed container. Such an embodiment also makes it possible to advantageously reduce the length of the arc of contact between the rim and the seal of a capsule closing the container, at a comparable punching height, compared to an embodiment, not according to the invention, in which the top of the warhead would be offset in the direction of the exterior of the container relative to a point located in the center of the base of the warhead.

Dans une forme de réalisation de l'invention, la base de l'ogive présente une largeur Lp allant de 1,0 mm à 10,0 mm, de préférence de 2,0 mm à 6,0 mm. Dans une forme de réalisation de l'invention, la hauteur Hs de l'ogive, de la base à son sommet, va de 0,5 mm à 5 mm, de préférence de 1,0 mm à 3,0 mm.In one embodiment of the invention, the base of the warhead has a width Lp ranging from 1.0 mm to 10.0 mm, preferably from 2.0 mm to 6.0 mm. In one embodiment of the invention, the height Hs of the ogive, from the base to its top, ranges from 0.5 mm to 5 mm, preferably from 1.0 mm to 3.0 mm.

Dans une forme de réalisation, le flanc de l'ogive situé vers l'intérieur du contenant rejoint le profil globalement rectiligne d'une paroi intérieure de la bague selon un arc de cercle présentant un rayon Ri allant de 0,10 mm à 1,25 mm, de préférence allant de 0,40 mm à 1,00 mm. Le flanc de l'ogive situé vers l'intérieur du contenant peut lui-même être légèrement courbe ou substantiellement rectiligne.In one embodiment, the side of the warhead located towards the inside of the container joins the generally rectilinear profile of an interior wall of the ring along an arc of a circle having a radius Ri ranging from 0.10 mm to 1, 25 mm, preferably ranging from 0.40 mm to 1.00 mm. The side of the warhead located towards the inside of the container may itself be slightly curved or substantially rectilinear.

Dans une forme de réalisation, le flanc de l'ogive situé vers l'extérieur du contenant rejoint le profil globalement rectiligne d'une paroi extérieure de la bague selon un arc de cercle présentant un rayon Re allant de 0,10 mm à 1,25 mm, de préférence allant de 0,40 mm à 1,00 mm. Le flanc de l'ogive situé vers l'extérieur du contenant peut lui-même être légèrement courbe ou substantiellement rectiligne.In one embodiment, the side of the cone located towards the outside of the container joins the generally rectilinear profile of an outer wall of the ring along an arc of a circle having a radius Re ranging from 0.10 mm to 1, 25 mm, preferably ranging from 0.40 mm to 1.00 mm. The side of the warhead located towards the outside of the container may itself be slightly curved or substantially rectilinear.

La bague du contenant selon l'invention peut également être munie sur sa paroi extérieure de filets particuliers permettant de limiter le serrage de la capsule sur le contenant lors de la fermeture du contenant. Cette limitation du serrage de la capsule permet également de réduire le couple d'ouverture nécessaire pour ouvrir le contenant. Ainsi, des personnes ayant peu de force dans les mains peuvent ouvrir le contenant selon l'invention de façon plus aisée.The ring of the container according to the invention can also be provided on its outer wall with particular threads making it possible to limit the tightening of the capsule on the container when closing the container. This limitation of the tightening of the capsule also makes it possible to reduce the opening torque necessary to open the container. Thus, people with little strength in their hands can open the container according to the invention more easily.

Ainsi, dans une forme de réalisation, la paroi extérieure de la bague est munie d'au moins un filet d'un premier type, ledit filet du premier type étant destiné à coopérer avec les crans de la capsule destinée à fermer ledit contenant, ledit filet du premier type comprenant, du haut vers le bas, un premier segment de filet, incliné, un deuxième segment de filet, substantiellement horizontal, et un troisième segment de filet, incliné, ledit troisième segment de filet étant en outre muni d'une butée anti-vissage. Avantageusement, la paroi extérieure de la bague est munie d'au moins deux tels filets d'un premier type, diamétralement opposés.Thus, in one embodiment, the outer wall of the ring is provided with at least one thread of a first type, said thread of the first type being intended to cooperate with the notches of the capsule intended to close said container, said net of the first type comprising, from top to bottom, a first inclined net segment, a second substantially horizontal net segment, and a third inclined net segment, said third net segment being further provided with a anti-screwing stop. Advantageously, the outer wall of the ring is provided with at least two such threads of a first type, diametrically opposed.

Dans une telle forme de réalisation, le premier segment de filet, incliné, permet l'amorçage du vissage et l'écrasement progressif du joint d'étanchéité lors du serrage. Par ailleurs, la présence de la butée anti-vissage sur le troisième segment de filet permet d'empêcher un serrage trop important de la capsule. Ceci est particulièrement avantageux lorsque les capsules sont vissées sur les contenants de façon industrielle par des machines, telles que des capsuleuses, qui appliquent des couples de serrage de façon automatique.In such an embodiment, the first thread segment, inclined, allows the initiation of screwing and the progressive crushing of the seal during tightening. By Furthermore, the presence of the anti-screwing stop on the third thread segment prevents excessive tightening of the capsule. This is particularly advantageous when the capsules are screwed onto the containers industrially by machines, such as cappers, which apply tightening torques automatically.

Dans une forme de réalisation, la paroi extérieure de la bague peut être munie d'au moins quatre tels filets du premier type, lesdits quatre filets du premier type étant diamétralement opposés deux à deux.In one embodiment, the outer wall of the ring can be provided with at least four such threads of the first type, said four threads of the first type being diametrically opposed in pairs.

Dans une autre forme de réalisation de l'invention, la paroi extérieure de la bague est munie d'au moins un filet d'un deuxième type, ledit filet du deuxième type étant destiné à coopérer avec les crans de la capsule destinée à fermer ledit contenant, ledit filet du deuxième type comprenant, du haut vers le bas, un premier segment de filet, incliné, un deuxième segment de filet, substantiellement horizontal, et un troisième segment de filet, ledit troisième segment de filet étant exempt de butée anti-vissage. La paroi extérieure de la bague peut par exemple être munie d'au moins deux tels filets du deuxième type, diamétralement opposés. Dans une forme de réalisation de l'invention, la paroi extérieure de la bague peut être munie de quatre filets du deuxième type, lesdits quatre filets du deuxième type étant diamétralement opposés deux à deux.In another embodiment of the invention, the outer wall of the ring is provided with at least one thread of a second type, said thread of the second type being intended to cooperate with the notches of the capsule intended to close said containing, said net of the second type comprising, from top to bottom, a first inclined net segment, a second substantially horizontal net segment, and a third net segment, said third net segment being free of anti- screwing. The outer wall of the ring can for example be provided with at least two such threads of the second type, diametrically opposed. In one embodiment of the invention, the outer wall of the ring can be provided with four threads of the second type, said four threads of the second type being diametrically opposed in pairs.

Dans une forme de réalisation, la paroi extérieure de la bague peut être munie à la fois de filets du premier type et de filets du deuxième type.In one embodiment, the outer wall of the ring can be provided with both threads of the first type and threads of the second type.

Dans une forme de réalisation préférée, la paroi extérieure de la bague est munie de filets du deuxième type uniquement.In a preferred embodiment, the outer wall of the ring is provided with threads of the second type only.

Dans une forme de réalisation, la distance allant du deuxième segment de filet, horizontal, des filets de premier type jusqu'au sommet de l'ogive du buvant présente une valeur k allant de 4,0 mm à 20,0 mm, de préférence de 7,0 mm à 15,0 mm. Une telle forme de réalisation permet d'ajuster la distance allant de l'interface capsule-joint au sommet de l'ogive, autrement dit au sommet du buvant du contenant selon l'invention, lorsque la capsule ferme le contenant selon l'invention, et ainsi d'ajuster le niveau de compression du joint, à capsule identique. Ainsi, la longueur d'Arc de contact est diminuée et le couple d'ouverture nécessaire pour parvenir à ouvrir le contenant est diminué. L'ouverture du contenant est ainsi rendue plus facile.In one embodiment, the distance going from the second horizontal thread segment of the first type threads to the top of the ogive of the rim has a value k ranging from 4.0 mm to 20.0 mm, preferably from 7.0mm to 15.0mm. Such an embodiment makes it possible to adjust the distance going from the capsule-seal interface to the top of the cone, in other words to the top of the rim of the container according to the invention, when the capsule closes the container according to the invention, and thus adjust the compression level of the seal, with identical capsule. Thus, the contact arc length is reduced and the opening torque necessary to open the container is reduced. Opening the container is thus made easier.

Le contenant selon l'invention peut être fabriqué par les méthodes connues de fabrication de contenants en verre, comme par exemple le procédé pressé-soufflé ou le procédé soufflé-soufflé.The container according to the invention can be manufactured by known methods of manufacturing glass containers, such as for example the press-blown process or the blown-blown process.

La présente invention ressortira plus amplement de la description détaillée qui suit accompagnée des dessins dans lesquels :

  • [Fig. 1] est une vue de côté d'un contenant de l'art antérieur avec un buvant standard,
  • [Fig. 2] est une vue de côté du contenant de l'art antérieur de la Figure 1 fermé par une capsule à crans,
  • [Fig. 3] est une demi-vue en coupe longitudinale du contenant de l'art antérieur de la Figure 1, montrant le profil du buvant standard,
  • [Fig. 4] est une vue partielle à plus grande échelle de la Figure 3 montrant plus précisément le profil du buvant standard du contenant de l'art antérieur,
  • [Fig. 5] est une vue en coupe partielle d'une gorge d'une capsule à cran avec un joint d'étanchéité, avant utilisation de la capsule,
  • [Fig. 6] est une vue en coupe partielle de la gorge de la Figure 5 après vissage et serrage de la capsule sur le contenant de l'art antérieur des figures 1-4 et maintien du contenant ainsi fermé pendant sept jours,
  • [Fig. 7] est une vue en coupe montrant un profil en ogive du buvant d'un contenant selon l'invention,
  • [Fig. 8] est une vue de la Figure 7 indiquant les différents paramètres variables possibles pour le profil en ogive du buvant du contenant selon l'invention,
  • [Fig. 9] est une vue de côté d'une bague du contenant selon l'invention montrant les filets de premier type et les filets de deuxième type,
  • [Fig. 10] représente le graphe de la comparaison des longueurs d'Arc de contact mesurées pour un contenant de l'art antérieur ayant un buvant standard (courbe en pointillés) et un contenant selon l'invention ayant un buvant présentant un profil en forme d'ogive (courbe en trait plein),
  • [Fig. 11] représente le graphe de la Figure 10 exprimé sous la forme d'un écart de longueur d'Arc de contact du buvant selon l'invention en pourcentage par rapport au buvant standard.
The present invention will emerge more fully from the detailed description which follows accompanied by the drawings in which:
  • [ Fig. 1 ] is a side view of a prior art container with a standard rim,
  • [ Fig. 2 ] is a side view of the container of the prior art of the Figure 1 closed by a notched capsule,
  • [ Fig. 3 ] is a half-view in longitudinal section of the container of the prior art of the Figure 1 , showing the profile of the standard drinker,
  • [ Fig. 4 ] is a partial view on a larger scale of the Figure 3 showing more precisely the profile of the standard rim of the container of the prior art,
  • [ Fig. 5 ] is a partial sectional view of a groove of a notch capsule with a seal, before use of the capsule,
  • [ Fig. 6 ] is a partial sectional view of the throat of the Figure 5 after screwing and tightening the capsule on the container of the prior art of figures 1-4 and keeping the container thus closed for seven days,
  • [ Fig. 7 ] is a sectional view showing a pointed profile of the rim of a container according to the invention,
  • [ Fig. 8 ] is a view of the Figure 7 indicating the different variable parameters possible for the pointed profile of the rim of the container according to the invention,
  • [ Fig. 9 ] is a side view of a ring of the container according to the invention showing the threads of the first type and the threads of the second type,
  • [ Fig. 10 ] represents the graph of the comparison of the contact arc lengths measured for a container of the prior art having a standard rim (dotted curve) and a container according to the invention having a rim having an ogive-shaped profile (solid line curve),
  • [ Fig. 11 ] represents the graph of the Figure 10 expressed in the form of a difference in contact arc length of the rim according to the invention as a percentage compared to the standard rim.

En référence à la Figure 7 et à la Figure 8 qui en est une vue partielle à plus grande échelle, est représenté un contenant 20 selon l'invention : le contenant 20 est creux et est en verre. Il comprend un corps cylindrique 21 définissant un intérieur 20a du contenant 20, présentant une extrémité inférieure 21a fermée formant le fond du contenant 20 et une extrémité supérieure 21b ouverte. L'extrémité supérieure 21b est formée d'une bague 22 présentant une paroi extérieure 22a munie de filets 23, une paroi intérieure 22b, et un buvant 24 présentant un profil en forme d'ogive. Les filets 23 sont destinés à coopérer avec les crans 7 d'une capsule 6 telle que décrite à la Figure 2, destinée à être vissée et serrée sur la bague 22 pour fermer le contenant 20.In reference to the Figure 7 and to the Figure 8 which is a partial view on a larger scale, a container 20 according to the invention is shown: the container 20 is hollow and is made of glass. It comprises a cylindrical body 21 defining an interior 20a of the container 20, having a closed lower end 21a forming the bottom of the container 20 and an open upper end 21b. The upper end 21b is formed of a ring 22 having an outer wall 22a provided with threads 23, an inner wall 22b, and a rim 24 having an ogive-shaped profile. The threads 23 are intended to cooperate with the notches 7 of a capsule 6 as described in Figure 2 , intended to be screwed and tightened on the ring 22 to close the container 20.

Comme il apparaît à la Figure 8, le profil du buvant 24 du contenant 20 selon l'invention définit pour l'ogive une base 25, un premier flanc 26a situé vers l'intérieur 20a du contenant 20, un deuxième flanc 26b, situé vers l'extérieur du contenant 20, et un sommet 27. Comme il apparaît de cette Figure 8, la base 25 est formée de la ligne horizontale reliant l'endroit où le premier flanc 26a rejoint le profil globalement rectiligne de la paroi intérieure 22b de la bague 22 à l'endroit où le deuxième flanc 26b rejoint le profil globalement rectiligne de la paroi extérieure 22a de la bague 22. Comme il apparaît également de cette Figure 8, le sommet 27 est aligné verticalement sur un point (non représenté) qui serait situé au centre de la base 25. Sur l'exemple représenté, l'ogive définie par le profil du buvant 24 est une ogive symétrique. Le sommet 27 présente une forme en arc de cercle présentant un rayon Rs comme indiqué sur la Figure 8. Le sommet de l'ogive est ainsi exempt de tout méplat.As it appears at Figure 8 , the profile of the rim 24 of the container 20 according to the invention defines for the cone a base 25, a first side 26a located towards the inside 20a of the container 20, a second side 26b, located towards the outside of the container 20, and a peak 27. As it appears from this Figure 8 , the base 25 is formed of the horizontal line connecting the place where the first sidewall 26a joins the generally rectilinear profile of the interior wall 22b of the ring 22 to the place where the second sidewall 26b joins the generally rectilinear profile of the wall outer 22a of the ring 22. As it also appears from this Figure 8 , the top 27 is aligned vertically on a point (not shown) which would be located in the center of the base 25. In the example shown, the ogive defined by the profile of the rim 24 is a symmetrical ogive. The vertex 27 has an arcuate shape having a radius Rs as indicated on the Figure 8 . The top of the warhead is thus free from any flat areas.

Le rayon Rs peut aller de 0,10 à 1,25 mm, de préférence de 0,40 à 1,00 mm. Par exemple, Rs peut être égal à 0,80 mm.The radius Rs can range from 0.10 to 1.25 mm, preferably from 0.40 to 1.00 mm. For example, Rs can be equal to 0.80 mm.

La base 25 de l'ogive peut présenter une largeur Lp allant de 1,0 mm à 10,0 mm, de préférence de 2,0 mm à 6,0 mm.The base 25 of the warhead may have a width Lp ranging from 1.0 mm to 10.0 mm, preferably from 2.0 mm to 6.0 mm.

La hauteur Hs de l'ogive, de la base 25 à son sommet 27, peut aller de 0,5 mm à 5 mm, de préférence de 1,0 mm à 3,0 mm.The height Hs of the warhead, from the base 25 to its top 27, can range from 0.5 mm to 5 mm, preferably from 1.0 mm to 3.0 mm.

Le premier flanc 26a de l'ogive, situé vers l'intérieur 20a du contenant 20, rejoint le profil globalement rectiligne d'une paroi intérieure 22b de la bague 22 selon un arc de cercle présentant un rayon Ri. Le rayon Ri peut aller de 0,10 mm à 1,25 mm, de préférence allant de 0,40 mm à 1,00 mm.The first side 26a of the warhead, located towards the interior 20a of the container 20, joins the generally rectilinear profile of an interior wall 22b of the ring 22 along an arc of a circle having a radius Ri. The radius Ri can range from 0.10 mm to 1.25 mm, preferably ranging from 0.40 mm to 1.00 mm.

Le deuxième flanc 26b de l'ogive, situé vers l'extérieur du contenant 20, rejoint le profil globalement rectiligne de la paroi extérieure 22a de la bague 22 selon un arc de cercle présentant un rayon Re. Le rayon Re peut aller de 0,10 mm à 1,25 mm, de préférence allant de 0,40 mm à 1,00 mm.The second flank 26b of the warhead, located towards the outside of the container 20, joins the generally rectilinear profile of the outer wall 22a of the ring 22 along an arc of a circle having a radius Re. The radius Re can range from 0, 10mm to 1.25mm, preferably ranging from 0.40mm to 1.00mm.

Dans une forme de réalisation non représentée, l'ogive définie par le profil du buvant 24 pourrait être asymétrique, le sommet 27 de l'ogive étant décalé dans la direction de l'intérieur 20a du contenant 20 par rapport à un point situé au centre de la base 25 de l'ogive. Une telle forme de réalisation présente l'avantage de maîtriser plus aisément le reflux de matière provenant du joint de la capsule fermant le contenant 20 lors du stockage du contenant 20 fermé.In an embodiment not shown, the cone defined by the profile of the rim 24 could be asymmetrical, the top 27 of the cone being offset in the direction of the interior 20a of the container 20 relative to a point located at the center of the base 25 of the warhead. Such an embodiment has the advantage of more easily controlling the reflux of material coming from the seal of the capsule closing the container 20 during storage of the closed container 20.

En référence à la Figure 9, sont décrits plus précisément les filets 23 de la bague 22 du contenant 20. Les filets 23 comprennent des filets de premier type 28. Chaque filet de premier type 28 comprend du haut vers le bas, comme montré sur la Figure 8, un premier segment 28a de filet, incliné, un deuxième segment 28b de filet, substantiellement horizontal, et un troisième segment 28c de filet, incliné. Le troisième segment 28c de filet est muni d'une butée anti-vissage 29. Le premier segment 28a de filet, incliné, permet l'amorçage du vissage et l'écrasement progressif du joint d'étanchéité 9 de la capsule 6 lors du serrage. Par ailleurs, la présence de la butée anti-vissage 29 sur le troisième segment 28c de filet permet d'empêcher un serrage trop important de la capsule 6.In reference to the Figure 9 , are described more precisely the threads 23 of the ring 22 of the container 20. The threads 23 comprise threads of first type 28. Each thread of first type 28 comprises from top to bottom, as shown in the Figure 8 , a first inclined thread segment 28a, a second substantially horizontal thread segment 28b, and a third inclined thread segment 28c. The third thread segment 28c is provided with an anti-screwing stop 29. The first thread segment 28a, inclined, allows the initiation of screwing and the progressive crushing of the seal 9 of the capsule 6 during tightening . Furthermore, the presence of the anti-screwing stop 29 on the third thread segment 28c makes it possible to prevent excessive tightening of the capsule 6.

Par exemple, les premiers segments 28a de filet peuvent présenter un angle d'inclinaison, par rapport à une droite horizontale, d'environ 6,3°. La longueur de ces premiers segments 28a de filet, sur la circonférence de la paroi extérieure 22a circulaire de la bague 22, peut par exemple être d'environ 12°.For example, the first thread segments 28a may have an angle of inclination, relative to a horizontal straight line, of approximately 6.3°. The length of these first thread segments 28a, on the circumference of the circular outer wall 22a of the ring 22, can for example be approximately 12°.

La longueur des deuxièmes segments 28b de filet, sur la circonférence de la paroi extérieure 22a circulaire de la bague 22, peut par exemple être d'environ 22°.The length of the second thread segments 28b, on the circumference of the circular outer wall 22a of the ring 22, can for example be approximately 22°.

Les filets de premier type 28 peuvent être présents sur la circonférence de la paroi extérieure 22a de la bague 22 au nombre d'au moins un, voire deux, quatre, six ou plus, diamétralement opposés deux à deux.The first type threads 28 may be present on the circumference of the outer wall 22a of the ring 22 in number at least one, or even two, four, six or more, diametrically opposed in pairs.

Les filets 23 comprennent également des filets de deuxième type 30. Chaque filet de deuxième type 30 comprend du haut vers le bas, un premier segment 30a de filet, incliné, un deuxième segment 30b de filet, substantiellement horizontal, et un troisième segment 30c de filet, ledit troisième segment 30c de filet étant exempt de butée anti-vissage.The threads 23 also include second type threads 30. Each second type thread 30 comprises from top to bottom, a first inclined thread segment 30a, a second substantially horizontal thread segment 30b, and a third thread segment 30c. thread, said third thread segment 30c being free of anti-screwing stop.

Les filets de deuxième type 30 peuvent par exemple être présents sur la circonférence de la paroi extérieure 22a de la bague 22 au nombre de deux.The second type threads 30 can for example be present on the circumference of the outer wall 22a of the ring 22, two in number.

Dans une forme de réalisation, la bague 22 est munie d'un total de six filets 23, par exemple quatre filets de premier type 28 et deux filets de deuxième type 30.In one embodiment, the ring 22 is provided with a total of six threads 23, for example four first type threads 28 and two second type threads 30.

Dans une forme de réalisation, la bague n'est munie que de filets du deuxième type.In one embodiment, the ring is only provided with threads of the second type.

Les filets de premier type 28 et/ou de deuxième type 30 permettent de limiter le serrage de la capsule 6 sur le contenant lors de la fermeture du contenant 20.The first type 28 and/or second type 30 threads make it possible to limit the tightening of the capsule 6 on the container when closing the container 20.

L'évolution de la longueur d'Arc de contact telle que définie ci-dessus a été mesurée pour un buvant 24 selon l'invention et a été comparée avec celle d'un buvant 5 standard tel que représenté à la Figure 4.The evolution of the contact arc length as defined above was measured for a rim 24 according to the invention and was compared with that of a standard rim 5 as represented in Figure 4 .

Le profil du buvant 24 du contenant 20 selon l'invention présentait la forme en ogive montrée sur la Figure 8 avec les dimensions suivantes :

  • Rs = 0,80 mm
  • Ri = 0,80 mm
  • Re = 0,80 mm
  • Lp = 2,5 mm
  • Hs = 1 mm
  • k = 7,55 mm
The profile of the rim 24 of the container 20 according to the invention had the pointed shape shown on the Figure 8 with the following dimensions:
  • Rs = 0.80 mm
  • Ri = 0.80 mm
  • Re = 0.80 mm
  • Lp = 2.5 mm
  • Hs = 1mm
  • k = 7.55mm

Le profil du buvant 5 standard présentait la forme montrée sur la Figure 4.The profile of the standard rim 5 had the shape shown on the Figure 4 .

Les contenants 20 selon l'invention et les contenants 1 de l'art antérieur ont été fermés par des capsules 6 à crans 7 comme montré sur la Figure 2. Le joint d'étanchéité 9 était un joint standard en PVC coulé.The containers 20 according to the invention and the containers 1 of the prior art were closed by capsules 6 with notches 7 as shown on the Figure 2 . Seal 9 was a standard cast PVC seal.

Les capsules ont été vissées et serrées à l'aide d'une capsuleuse avec un couple de serrage identique pour l'ensemble des contenants.The capsules were screwed and tightened using a capper with an identical tightening torque for all of the containers.

Les longueurs d'Arc de contact ont été calculées après relevé du profil par un instrument de mesure « MarTalk » de la société Mahr avec les paramètres suivants :

  • Unité d'avance : DriveUnit.PCV
  • palpeur : PCV 350 X 33 mm #1632/99
  • Vitesse de progression : 1,000 mm/s
The contact arc lengths were calculated after reading the profile using a “MarTalk” measuring instrument from the company Mahr with the following parameters:
  • Feed unit: DriveUnit.PCV
  • probe: PCV 350 X 33 mm #1632/99
  • Progression speed: 1,000 mm/s

La Figure 10 montre l'évolution de la longueur d'Arc de contact (Arc) en fonction de la hauteur de poinçonnement (Hp) pour les contenants 1 de l'art antérieur ayant un buvant 5 standard (courbe en pointillés) et pour les contenants 20 selon l'invention ayant le buvant 24 (courbe en trait plein). Comme il apparaît de cette figure, les contenants 20 selon l'invention permettent de réduire significativement la longueur d'Arc de contact entre le buvant 24 et le joint d'étanchéité 9 de la capsule 6. Ainsi, le couple d'ouverture qu'il est nécessaire d'exercer afin de parvenir à ouvrir les contenants 20 selon l'invention est significativement moins important que celui qu'il est nécessaire d'exercer pour ouvrir les contenants 1 de l'art antérieur.There Figure 10 shows the evolution of the contact arc length (Arc) as a function of the punching height (Hp) for containers 1 of the prior art having a standard rim 5 (dotted curve) and for containers 20 according to the invention having the rim 24 (solid line curve). As can be seen from this figure, the containers 20 according to the invention make it possible to significantly reduce the arc length of contact between the rim 24 and the seal 9 of the capsule 6. Thus, the opening torque that it is necessary to exercise in order to open the containers 20 according to the invention is significantly less important than that which it is necessary to exercise to open the containers 1 of the prior art.

La Figure 11 reprend le graphe de la Figure 10 en l'exprimant sous la forme d'un écart de longueur d'Arc de contact du buvant 24 des contenants 20 selon l'invention en pourcentage par rapport au buvant 5 standard des contenants 1 de l'art antérieur. Comme il apparaît de cette Figure, il est possible, grâce au buvant 24 des contenants 20 selon l'invention de réduire les longueurs d'Arc de contact de 27 à 60% respectivement pour des hauteurs de poinçonnement Hp couramment comprises entre 0,2 mm et 0,9 mm. Par exemple, à une hauteur de poinçonnement Hp de 0,5 mm, la longueur d'Arc de contact peut être réduite de 38 % par rapport aux contenants 1 de l'art antérieur.There Figure 11 takes the graph of the Figure 10 by expressing it in the form of a difference in contact arc length of the rim 24 of the containers 20 according to the invention as a percentage compared to the standard rim 5 of the containers 1 of the prior art. As it appears from this Figure, it is possible, thanks to the rim 24 of the containers 20 according to the invention, to reduce the contact arc lengths from 27 to 60% respectively for punching heights Hp commonly between 0.2 mm and 0.9mm. For example, at a punching height Hp of 0.5 mm, the contact arc length can be reduced by 38% compared to containers 1 of the prior art.

Les réductions de longueur d'Arc de contact obtenues avec le buvant 24 des contenants 20 selon l'invention permettent de réduire significativement la valeur du couple d'ouverture nécessaire pour parvenir à ouvrir les contenants 20 après vissage, capsulage et stockage. Par exemple, le couple d'ouverture peut être réduit d'au moins 10%, de préférence d'au moins 15%, et par exemple jusqu'à 36%, avec le buvant 24 du contenant 20 selon l'invention.The reductions in contact arc length obtained with the rim 24 of the containers 20 according to the invention make it possible to significantly reduce the value of the opening torque necessary to open the containers 20 after screwing, capping and storage. For example, the opening torque can be reduced by at least 10%, preferably by at least 15%, and for example up to 36%, with the rim 24 of the container 20 according to the invention.

Les contenants selon l'invention présentent ainsi l'avantage de pouvoir à la fois conserver des aliments de façon étanche et sûre pour des périodes significatives, tout en présentant une ouverture facile. En particulier, les contenants selon l'invention peuvent être ouverts par des personnes ayant peu de force dans les mains ou par des personnes âgées.The containers according to the invention thus have the advantage of being able to both store food in a sealed and safe manner for significant periods, while being easy to open. In particular, the containers according to the invention can be opened by people with little strength in their hands or by elderly people.

Claims (14)

  1. A Hollow glass container (20) comprising a ring (22) intended to cooperate with a capsule (6) with notches (7) to close said container, characterized in that said ring has a rim (24) whose cross section has a profile substantially in the shape of an ogive, said profile defining for the ogive a base (25) having a center, two sides (26a, 26b), and a top (27), characterized in that said top (27) is aligned on a point located at the center of the base or offset in the direction of an interior of the container relative to said point located at the center of the base.
  2. The container (20) according to claim 1, characterized in that said top has an arcuate shape having a radius Rs ranging from 0.10 to 1.25 mm, preferably from 0.40 to 1.00 mm.
  3. The container (20) according to claim 2, characterized in that Rs is equal to 0.80 mm.
  4. The container (20) according to any one of claims 1 to 3, characterized in that the base (25) of the ogive has a width Lp ranging from 1.0 mm to 10.0 mm, preferably from 2.0 mm to 6.0 mm.
  5. The container (20) according to any one of claims 1 to 4, characterized in that the height Hs of the ogive, from the base (25) to its top (27), ranges from 0.5 mm to 5 mm, preferably from 1.0 mm to 3.0 mm.
  6. The container (20) according to any one of claims 1 to 5, characterized in that the side (26a) of the ogive located towards the interior (20a) of the container (20) joins the generally rectilinear profile of an interior wall (22b) of the ring (22) along an arc having a radius Ri ranging from 0.10 mm to 1.25 mm, preferably ranging from 0.40 mm to 1.00 mm.
  7. The container (20) according to any one of claims 1 to 6, characterized in that the side (26b) of the ogive located towards the outside of the container (20) joins the generally rectilinear profile of an external wall (22a) of the ring (22) along an arc of a circle having a radius Re ranging from 0.10 mm to 1.25 mm, preferably ranging from 0.40 mm to 1.00 mm.
  8. The container (20) according to any one of claims 1 to 7, characterized in that the external wall (22a) of the ring (22) is provided with at least one thread of a first type (28), said thread of the first type (28) being intended to cooperate with the notches (7) of the capsule (6) intended to close said container (20), said thread of the first type (28) comprising, from top to bottom, a first inclined thread segment (28a), a second thread segment (28b), substantially horizontal, and a third inclined thread segment (28c), said third thread segment being further provided with an anti-screwing stop (29).
  9. The container (20) according to claim 8, characterized in that the external wall (22a) of the ring (22) is provided with at least two such threads of a first type (28), diametrically opposed.
  10. The container (20) according to claim 8 or 9, characterized in that the external wall (22a) of the ring (22) is provided with at least four such threads of the first type (28), said four threads of the first type (28) being diametrically opposed two by two.
  11. The container (20) according to any one of claims 1 to 10, characterized in that the external wall (22a) of the ring (22) is provided with at least one thread of a second type (30), said thread of the second type (30) being intended to cooperate with the notches (7) of the capsule (6) intended to close said container (20), said thread of the second type (30) comprising, from top to bottom, a first inclined thread segment (30a), a second thread segment (30b), substantially horizontal, and a third thread segment (30c), said third thread segment being free of anti-screwing stop.
  12. The container (20) according to claim 11, characterized in that the external wall (22a) of the ring (22) is provided with at least two such threads of the second type (30), diametrically opposed.
  13. The container (20) according to claim 11 or 12, characterized in that the external wall (22a) of the ring (22) is provided with at least four such threads of the second type (30), said four threads of the second type (30) being diametrically opposed two by two.
  14. The container (20) according to any one of claims 8 to 10, characterized in that the distance going from the second horizontal thread segment (28b), of the first type threads (28) to the top (27) of the ogive of the rim has a value k ranging from 4.0 mm to 20.0 mm, preferably from 7.0 mm to 15.0 mm.
EP21778175.6A 2020-09-04 2021-09-02 Hollow glass container having a specific lip profile Active EP4208390B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2008973A FR3113896B1 (en) 2020-09-04 2020-09-04 Hollow glass container with specific rim profile
PCT/FR2021/051510 WO2022049348A1 (en) 2020-09-04 2021-09-02 Hollow glass container having a specific lip profile

Publications (2)

Publication Number Publication Date
EP4208390A1 EP4208390A1 (en) 2023-07-12
EP4208390B1 true EP4208390B1 (en) 2024-05-15

Family

ID=73401741

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21778175.6A Active EP4208390B1 (en) 2020-09-04 2021-09-02 Hollow glass container having a specific lip profile

Country Status (7)

Country Link
US (1) US20230322431A1 (en)
EP (1) EP4208390B1 (en)
AR (1) AR123423A1 (en)
BR (1) BR112023003892A2 (en)
CL (1) CL2023000405A1 (en)
FR (1) FR3113896B1 (en)
WO (1) WO2022049348A1 (en)

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Also Published As

Publication number Publication date
FR3113896B1 (en) 2022-08-19
CL2023000405A1 (en) 2023-08-18
WO2022049348A1 (en) 2022-03-10
EP4208390A1 (en) 2023-07-12
US20230322431A1 (en) 2023-10-12
AR123423A1 (en) 2022-11-30
FR3113896A1 (en) 2022-03-11
BR112023003892A2 (en) 2023-04-04

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