EP4208390A1 - Hollow glass container having a specific lip profile - Google Patents

Hollow glass container having a specific lip profile

Info

Publication number
EP4208390A1
EP4208390A1 EP21778175.6A EP21778175A EP4208390A1 EP 4208390 A1 EP4208390 A1 EP 4208390A1 EP 21778175 A EP21778175 A EP 21778175A EP 4208390 A1 EP4208390 A1 EP 4208390A1
Authority
EP
European Patent Office
Prior art keywords
container
ring
type
thread
segment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP21778175.6A
Other languages
German (de)
French (fr)
Other versions
EP4208390B1 (en
Inventor
Eric Martin
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.)
Verallia Packaging SAS
Original Assignee
Verallia Packaging SAS
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
Application filed by Verallia Packaging SAS filed Critical Verallia Packaging SAS
Publication of EP4208390A1 publication Critical patent/EP4208390A1/en
Application granted granted Critical
Publication of EP4208390B1 publication Critical patent/EP4208390B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • 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

Definitions

  • TITLE Hollow glass container with specific rim profile
  • 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 caps with notches intended to close these containers have a circular groove at the bottom of which there is a seal. When the container is closed, this seal is intended to compress on the edge of the ring forming the opening of the container.
  • the high opening torque required to open conventional containers may be due to the fact that current container ring and cap geometries allow free compression of the seal. This compression of the gasket can lead to excessive deformation of the latter, also called punching of the gasket. It can also lead to an increase in the surface in contact between the rim and the seal. Consequently, the tribological constraint to be overcome in order to open the container is aggravated.
  • Figure 1 is shown a hollow glass container 1 of the prior art, for example intended for packaging 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 outer wall 3a provided with threads 4 and an upper part called rim 5.
  • the container 1 of the prior art of Figure 1 is intended to be closed in a conventional manner by means of a cap 6 having notches 7 configured to cooperate with the threads 4 of the outer wall 3a of the ring 3 in order to screw the cap 6 onto the ring 3.
  • the cap 6 also has a circular groove 8 at the bottom of which there is a seal 9 which is also circular.
  • the seal 9 compresses on the rim 5.
  • the rim 5 may have differences in flatness, with high points 5a and low points 5b.
  • FIG. 3 and 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 conventional container 1 of the prior art as shown in Figure 1 .
  • This standard 5 rim profile has the shape of a 5c arch which is generally close to what could be called a semicircular arch with a slight flat 5d at the top of the arch.
  • FIG 5 is shown a cross section of a circular groove 8 of a capsule 6 of Figure 2, with the seal 9 in new condition, in other words before any use of the capsule 6 for closing a container 1.
  • the seal 9 is for example a joint cast in PVC (polyvinyl chloride).
  • This contact Arc length is calculated after surveying the profile by a feeler 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 zone of contact mouth/seal.
  • a height of this arc of contact corresponding to the punching height, indicated by Hp in Figure 6, is also measured for the cavity 10.
  • 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 cap 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 ogive a base having a center, two flanks, and an apex, said apex being aligned with a point located at the center of the base or offset in the direction of an interior of the container with respect to said point located at the center of base.
  • the profile of the rim of the container according to the invention approximates a broken arch whose top is free of flats.
  • 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 cap closing the container, at a comparable punching height.
  • the specific rim profile 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 the shape of an arc of a circle having a radius Rs ranging from 0.10 to 1.25 mm, preferably from 0.40 to 1.00 mm.
  • the top of the ogive is thus free of any flats.
  • Rs can be equal to 0.80 mm.
  • the top of the ogive is aligned with a point at the center of the base of the ogive.
  • the profile of the rim can thus define a symmetrical warhead.
  • 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, with respect to a point located at the center of the base of the ogive.
  • Such an embodiment can have the advantage of more easily controlling the reflux of material from the joint of the cap 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 ogive would be offset in the direction of the outside of the container with respect to a point located at the center of the base of the ogive.
  • the base 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. 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.
  • the flank of the ogive located towards the inside of the container joins the generally rectilinear profile of an inner wall of the ring according to 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 flank of the ogive located towards the interior of the container may itself be slightly curved or substantially straight.
  • the flank of the ogive located towards the outside of the container joins the generally rectilinear profile of an outer wall of the ring according to 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 flank of the ogive located towards the outside of the container may itself be slightly curved or substantially straight.
  • the ring of the container according to the invention can also be provided on its outer wall with special 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 cap intended to close said container, said net of the first type comprising, from top to bottom, a first segment of net, inclined, a second segment of net, substantially horizontal, and a third segment of net, inclined, said third segment of net being further provided with a anti-screwing stopper.
  • 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 abutment on the third thread segment makes it possible to prevent excessive tightening of the capsule. This is particularly advantageous when the caps 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 cap intended to close said containing, said net of the second type comprising, from top to bottom, a first segment of net, inclined, a second segment of net, substantially horizontal, and a third segment of net, said third segment of net 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 may 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 from the second thread segment, horizontal, of the threads of the first type 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 for manufacturing glass containers, such as for example the press-and-blow process or the blow-and-blow process.
  • 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 Figure 1 closed by a notched cap
  • FIG. 3 is a half-view in longitudinal section of the container of the prior art of Figure 1, showing the profile of the standard rim,
  • FIG. 4 is a partial view on a larger scale of 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 snap cap with a seal, before use of the cap,
  • FIG. 6 is a partial sectional view of the groove of Figure 5 after screwing and tightening the cap 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 an ogival profile of the rim of a container according to the invention.
  • FIG. 8 is a view of Figure 7 indicating the various possible variable parameters for the ogival 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 a profile in the shape of an warhead (solid line curve),
  • FIG. 11 represents the graph of Figure 10 expressed in the form of a difference in arc length of contact of the rim according to the invention as a percentage compared to the standard rim.
  • 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 by 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 cap 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 ogive 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 top 27.
  • the base 25 is formed of the horizontal line connecting the place where the first flank 26a joins the generally straight profile of the inner wall 22b of the ring 22 to the place where the second flank 26b joins the generally rectilinear profile of the outer wall 22a of the ring 22.
  • the top 27 is aligned vertically on a point (not shown) which would be located at the center of the base 25.
  • the warhead defined by the profile of the rim 24 is a symmetrical warhead.
  • the top 27 has the shape of an arc of a circle having a radius Rs as indicated in FIG. 8. The top of the ogive is thus free of any flattening.
  • 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 ogive can 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 ogive, 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 flank 26a of the ogive located towards the inside 20a of the container 20, joins the generally rectilinear profile of an inner wall 22b of the ring 22 according to 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 ogive located towards the outside of the container 20, joins the generally rectilinear profile of the outer wall 22a of the ring 22 according to an arc of a circle having a radius Re.
  • the radius Re can range from 0, 10 mm to 1.25 mm, preferably ranging from 0.40 mm to 1.00 mm.
  • the ogive defined by the profile of the rim 24 could be asymmetrical, the top 27 of the ogive being offset in the direction of the interior 20a of the container 20 with respect to a point located at the center from the base 25 of the warhead.
  • Such an embodiment has the advantage of more easily controlling the reflux of material from the joint of the capsule closing the container 20 during storage of the closed container 20.
  • the threads 23 of the ring 22 of the container 20 are described more precisely.
  • the threads 23 include first type threads 28.
  • Each first type thread 28 includes from top to bottom, as shown Figure 8, a first segment 28a of net, inclined, a second segment 28b of net, substantially horizontal, and a third segment 28c of net, inclined.
  • the third segment 28c of thread is provided with an anti-screwing abutment 29.
  • the first segment 28a of thread, inclined allows the initiation of the 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 cap 6.
  • first thread segments 28a may have an angle of inclination, with respect 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 threads of the first type 28 can be present on the circumference of the outer wall 22a of the ring 22 in the number of at least one, even two, four, six or more, diametrically opposed two by two.
  • the threads 23 also include threads of the second type 30.
  • Each thread of the second type 30 comprises, from top to bottom, a first segment 30a of thread, inclined, a second segment 30b of thread, substantially horizontal, and a third segment 30c of thread, said third segment 30c of thread being free of anti-screwing abutment.
  • 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 threads of the first type 28 and two threads of the second type 30.
  • the ring is only provided with threads of the second type.
  • the threads of the first type 28 and/or of the second type 30 make it possible to limit the tightening of the cap 6 on the container when the container 20 is closed.
  • the profile of the rim 24 of the container 20 according to the invention had the ogive shape shown in Figure 8 with the following dimensions:
  • the profile of the standard rim 5 had the shape shown in Figure 4.
  • the containers 20 according to the invention and the containers 1 of the prior art were closed by caps 6 with notches 7 as shown in FIG. 2.
  • the seal 9 was a standard cast PVC seal.
  • the caps were screwed and tightened using a capper with an identical tightening torque for all the containers.
  • the contact arc lengths were calculated after recording the profile using a "MarTalk" measuring instrument from the Mahr company with the following parameters:
  • Figure 10 shows the evolution of the contact arc length (Arc) as a function of the punching height (Hp) for the containers 1 of the prior art having a standard rim 5 (dotted curve) and for the 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 exert in order to manage 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.
  • Figure 11 repeats the graph of Figure 10 by expressing it in the form of a difference in length of arc of contact of the rim 24 of the containers 20 according to the invention as a percentage relative to the standard rim 5 of the containers 1 of prior art.
  • the rim 24 of the containers 20 according to the invention it is possible, thanks to the rim 24 of the containers 20 according to the invention, to reduce the contact arc lengths by 27 to 60% respectively for punching heights Hp commonly between 0.2 mm and 0.9mm.
  • the contact arc length 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 succeed in opening 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 preserve food in a sealed and safe manner for significant periods, while having an easy opening.
  • the containers according to the invention can be opened by people with little strength in their hands or by elderly people.

Abstract

The present invention relates to a hollow glass container (20) comprising a ring (22) intended to cooperate with a cap (6) having notches (7) for closing said container, characterized in that said ring has a lip (24) whose cross section has a substantially ogival profile.

Description

DESCRIPTION DESCRIPTION
TITRE : Contenant en verre creux à profil de buvant spécifique TITLE: Hollow glass container with specific rim profile
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 by notched caps, such as conventional jam jars, for example, 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 be accentuated over time or when the containers, for example pots, are stored under a 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 caps with notches intended to close these containers have a circular groove at the bottom of which there is a seal. When the container is closed, 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 opening torque required to open conventional containers may be due to the fact that current container ring and cap geometries allow free compression of the seal. This compression of the gasket can lead to excessive deformation of the latter, also called punching of the gasket. It can also lead to an increase in the surface in contact between the rim and the seal. Consequently, 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. Excessive compression of the seal can be produced continuously over its entire circularity, by excessive tightening of the capsule on the ring of the container. This excessive compression can also materialize locally, due to geometric deviations from the flatness of the rings, also called veiling. If these geometric deviations are significant, they can lead to 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 diametrically opposed low points (valleys). , located at 90° from the two high points.
Sur la Figure 1 est représenté un contenant 1 creux en verre de l’art antérieur par exemple destiné à conditionner de la confiture. In Figure 1 is shown a hollow glass container 1 of the prior art, for example intended for packaging 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 outer 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. Referring to Figure 2, the container 1 of the prior art of Figure 1 is intended to be closed in a conventional manner by means of a cap 6 having notches 7 configured to cooperate with the threads 4 of the outer wall 3a of the ring 3 in order to screw the cap 6 onto the ring 3. The cap 6 also has a circular groove 8 at the bottom of which there is a seal 9 which is also circular. When the capsule 6 is screwed onto the ring 3 of the container 1, the seal 9 compresses 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 can be seen from 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. With reference to 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 high points 5a at 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. With reference to Figure 3 and 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 conventional container 1 of the prior art as shown in Figure 1 . This standard 5 rim profile has the shape of a 5c arch which is generally close to what could be called a semicircular arch with a slight flat 5d at the top of the arch.
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). Referring to Figure 5, is shown a cross section of a circular groove 8 of a capsule 6 of Figure 2, with the seal 9 in new condition, in other words before any use of the capsule 6 for closing a container 1. The seal 9 is for example a joint cast in PVC (polyvinyl chloride).
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 buvantWith reference to Figure 6 is shown the cross section of the circular groove 8 and the seal 9 of Figure 5 after the cap 6 has been screwed and tightened on a container 1 having the rim 5 in profile shown in Figure 4 and 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 Figure 4 and has been deformed. The seal 9 thus has an imprint 10 in the form of an arc of a circle. As it also appears from this Figure 6, the drinker
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 Figure5, by fitting into the seal 9, the material of the seal 9 has been pushed back on either side of the cavity 10, this material forming beads 11 . A length of the arc of a circle located between the two beads 11 corresponding to the arc length of contact (Arc) between the rim 5 and the seal 9 is thus measured for the cavity 10. This arc length of contact (Arc) corresponds to the arc of a circle between the two straight lines A1 and A2 indicated in the 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. 6. This contact Arc length is calculated after surveying the profile by a feeler 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 zone of contact mouth/seal. In the same way, a height of this arc of contact corresponding to the punching height, indicated by Hp in Figure 6, is also measured for the cavity 10.
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 has been 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 the need for a hollow glass container whose rim would make it possible to 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 cap 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 ogive a base having a center, two flanks, and an apex, said apex being aligned with a point located at the center of the base or offset in the direction of an interior of the container with respect to said point located at the center of 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 approximates a broken arch whose top is free of flats.
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 cap closing the container, at a comparable punching height. For example, it has been observed that the specific rim profile 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 the shape of an arc of a circle having a radius Rs ranging from 0.10 to 1.25 mm, preferably from 0.40 to 1.00 mm. The top of the ogive is thus free of any flats. 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 ogive is aligned with a point at the center of the base of the ogive. In such a case, the profile of the rim can thus define a symmetrical warhead.
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, with respect to a point located at the center of the base of the ogive. Such an embodiment can have the advantage of more easily controlling the reflux of material from the joint of the cap 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 ogive would be offset in the direction of the outside of the container with respect to a point located at the center of the base of the ogive.
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 ogive 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 flank of the ogive located towards the inside of the container joins the generally rectilinear profile of an inner wall of the ring according to 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 flank of the ogive located towards the interior of the container may itself be slightly curved or substantially straight.
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 flank of the ogive located towards the outside of the container joins the generally rectilinear profile of an outer wall of the ring according to 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 flank of the ogive located towards the outside of the container may itself be slightly curved or substantially straight.
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 special 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 cap intended to close said container, said net of the first type comprising, from top to bottom, a first segment of net, inclined, a second segment of net, substantially horizontal, and a third segment of net, inclined, said third segment of net being further provided with a anti-screwing stopper. 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 moreover, the presence of the anti-screwing abutment on the third thread segment makes it possible to prevent excessive tightening of the capsule. This is particularly advantageous when the caps 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 cap intended to close said containing, said net of the second type comprising, from top to bottom, a first segment of net, inclined, a second segment of net, substantially horizontal, and a third segment of net, said third segment of net 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 may 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 from the second thread segment, horizontal, of the threads of the first type 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 from the cap-seal interface to the top of the ogive, in other words to the top of the rim of the container according to the invention, when the cap closes the container according to the invention, and thus to adjust the level of compression of the seal, with the same capsule. Thus, the contact arc length is reduced and the opening torque required to successfully open the container is reduced. The opening of 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 for manufacturing glass containers, such as for example the press-and-blow process or the blow-and-blow process.
La présente invention ressortira plus amplement de la description détaillée qui suit accompagnée des dessins dans lesquels : The present invention will emerge more fully from the detailed description which follows accompanied by the drawings in which:
[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. 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 Figure 1 closed by a notched cap,
[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. 3] is a half-view in longitudinal section of the container of the prior art of Figure 1, showing the profile of the standard rim,
[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. 4] is a partial view on a larger scale of Figure 3 showing more precisely the profile of the standard rim of the container of the prior art,
[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. 5] is a partial sectional view of a groove of a snap cap with a seal, before use of the cap,
[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. 6] is a partial sectional view of the groove of Figure 5 after screwing and tightening the cap on the container of the prior art of Figures 1-4 and keeping the container thus closed for seven days,
[Fig. 7] est une vue en coupe montrant un profil en ogive du buvant d’un contenant selon l’invention, [Fig. 7] is a sectional view showing an ogival profile of the rim of a container according to the 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. 8] is a view of Figure 7 indicating the various possible variable parameters for the ogival profile of the rim of the container according to the 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. 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] 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. 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 a profile in the shape of an warhead (solid line curve),
[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. [Fig. 11] represents the graph of Figure 10 expressed in the form of a difference in arc length of contact 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 21 b ouverte. L’extrémité supérieure 21 b 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. With reference to Figure 7 and Figure 8 which is a partial view on a larger scale, there is shown a container 20 according to the invention: 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 by 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 cap 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 shown in Figure 8, the profile of the rim 24 of the container 20 according to the invention defines for the ogive 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 top 27. As appears from this Figure 8, the base 25 is formed of the horizontal line connecting the place where the first flank 26a joins the generally straight profile of the inner wall 22b of the ring 22 to the place where the second flank 26b joins the generally rectilinear profile of the outer wall 22a of the ring 22. As also appears from this Figure 8, the top 27 is aligned vertically on a point (not shown) which would be located at the center of the base 25. In the example shown, the warhead defined by the profile of the rim 24 is a symmetrical warhead. The top 27 has the shape of an arc of a circle having a radius Rs as indicated in FIG. 8. The top of the ogive is thus free of any flattening.
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 ogive can 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 ogive, 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 flank 26a of the ogive, located towards the inside 20a of the container 20, joins the generally rectilinear profile of an inner wall 22b of the ring 22 according to 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 ogive, located towards the outside of the container 20, joins the generally rectilinear profile of the outer wall 22a of the ring 22 according to an arc of a circle having a radius Re. The radius Re can range from 0, 10 mm to 1.25 mm, preferably ranging from 0.40 mm to 1.00 mm.
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 ogive defined by the profile of the rim 24 could be asymmetrical, the top 27 of the ogive being offset in the direction of the interior 20a of the container 20 with respect to a point located at the center from the base 25 of the warhead. Such an embodiment has the advantage of more easily controlling the reflux of material from the joint 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. 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°. With reference to Figure 9, the threads 23 of the ring 22 of the container 20 are described more precisely. The threads 23 include first type threads 28. Each first type thread 28 includes from top to bottom, as shown Figure 8, a first segment 28a of net, inclined, a second segment 28b of net, substantially horizontal, and a third segment 28c of net, inclined. The third segment 28c of thread is provided with an anti-screwing abutment 29. The first segment 28a of thread, inclined, allows the initiation of the 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 cap 6. For example, the first thread segments 28a may have an angle of inclination, with respect 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 threads of the first type 28 can be present on the circumference of the outer wall 22a of the ring 22 in the number of at least one, even two, four, six or more, diametrically opposed two by two.
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 threads of the second type 30. Each thread of the second type 30 comprises, from top to bottom, a first segment 30a of thread, inclined, a second segment 30b of thread, substantially horizontal, and a third segment 30c of thread, said third segment 30c of thread being free of anti-screwing abutment.
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 threads of the first type 28 and two threads of the second type 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 threads of the first type 28 and/or of the second type 30 make it possible to limit the tightening of the cap 6 on the container when the container 20 is closed.
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 shown 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 : The profile of the rim 24 of the container 20 according to the invention had the ogive shape shown in Figure 8 with the following dimensions:
Rs = 0,80 mm Rs=0.80mm
Ri = 0,80 mm Ri = 0.80mm
Re = 0,80 mm Re = 0.80mm
Lp = 2,5 mm Lp = 2.5mm
Hs = 1 mm k = 7,55 mm Hs=1mm k=7.55mm
Le profil du buvant 5 standard présentait la forme montrée sur la 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 profile of the standard rim 5 had the shape shown in Figure 4. The containers 20 according to the invention and the containers 1 of the prior art were closed by caps 6 with notches 7 as shown in FIG. 2. The 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 caps were screwed and tightened using a capper with an identical tightening torque for all 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 : The contact arc lengths were calculated after recording the profile using a "MarTalk" measuring instrument from the Mahr company with the following parameters:
Unité d’avance : DriveUnit.PCV Drive Unit: DriveUnit.PCV
- palpeur : PCV 350 X 33 mm #1632/99 - feeler: PCV 350 X 33 mm #1632/99
Vitesse de progression : 1 ,000 mm/s Forward 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. Figure 10 shows the evolution of the contact arc length (Arc) as a function of the punching height (Hp) for the containers 1 of the prior art having a standard rim 5 (dotted curve) and for the containers 20 according to the invention having the rim 24 (solid line curve). As it appears 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 exert in order to manage 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. Figure 11 repeats the graph of Figure 10 by expressing it in the form of a difference in length of arc of contact of the rim 24 of the containers 20 according to the invention as a percentage relative to the standard rim 5 of the containers 1 of 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 by 27 to 60% respectively for punching heights Hp commonly between 0.2 mm and 0.9mm. For example, at a puncture 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 succeed in opening 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 preserve food in a sealed and safe manner for significant periods, while having an easy opening. In particular, the containers according to the invention can be opened by people with little strength in their hands or by elderly people.

Claims

REVENDICATIONS
1. Contenant (20) creux en verre comprenant une bague (22) destinée à coopérer avec une capsule (6) à crans (7) pour fermer ledit contenant, caractérisé en ce que ladite bague présente un buvant (24) dont la coupe transversale présente un profil substantiellement en forme d’ogive, ledit profil définissant pour l’ogive une base (25) présentant un centre, deux flancs (26a, 26b), et un sommet (27), ledit sommet (27) 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. 1. Hollow glass container (20) comprising a ring (22) intended to cooperate with a cap (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 flanks (26a, 26b), and an apex (27), said apex (27) being aligned with a point located at the center of the base or offset in the direction of an interior of the container with respect to said point located at the center of the base.
2. Contenant (20) selon la revendication 1 , caractérisé en ce que 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. 2. Container (20) according to claim 1, characterized in that said top has a circular arc shape having a radius Rs ranging from 0.10 to 1.25 mm, preferably from 0.40 to 1.00 mm .
3. Contenant (20) selon la revendication 2, caractérisé en ce que Rs est égal à 0,80 mm. 3. Container (20) according to claim 2, characterized in that Rs is equal to 0.80 mm.
4. Contenant (20) selon l’une quelconque des revendications 1 à 3, caractérisé en ce que la base (25) 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. 4. 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 2 .0mm to 6.0mm.
5. Contenant (20) selon l’une quelconque des revendications 1 à 4, caractérisé en ce que la hauteur Hs de l’ogive, de la base (25) à son sommet (27), va de 0,5 mm à 5 mm, de préférence de 1 ,0 mm à 3,0 mm. 5. 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 1.0 mm to 3.0 mm.
6. Contenant (20) selon l’une quelconque des revendications 1 à 5, caractérisé en ce que le 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 allant de 0,10 mm à 1 ,25 mm, de préférence allant de 0,40 mm à 1 ,00 mm. 6. Container (20) according to any one of claims 1 to 5, characterized in that the flank (26a) of the ogive located towards the inside (20a) of the container (20) joins the generally rectilinear profile of an inner wall (22b) of the ring (22) 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.
7. Contenant (20) selon l’une quelconque des revendications 1 à 6, caractérisé en ce que le flanc (26b) de l’ogive situé vers l’extérieur du contenant (20) rejoint le profil globalement rectiligne d’une paroi extérieure (22a) de la bague (22) 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. 7. Container (20) according to any one of claims 1 to 6, characterized in that the flank (26b) of the ogive located towards the outside of the container (20) joins the generally rectilinear profile of an outer wall (22a) of the ring (22) according to 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. Contenant (20) selon l’une quelconque des revendications 1 à 7, caractérisé en ce que la paroi extérieure (22a) de la bague (22) est munie d’au moins un filet d’un premier type (28), ledit filet du premier type (28) étant destiné à coopérer avec les crans (7) de la capsule (6) destinée à fermer ledit contenant (20), ledit filet du premier type (28) comprenant, du haut vers le bas, un premier segment (28a) de filet, incliné, un deuxième segment (28b) de filet, substantiellement horizontal, et un troisième segment (28c) de filet, incliné, ledit troisième segment de filet étant en outre muni d’une butée anti-vissage (29). 8. Container (20) according to any one of claims 1 to 7, characterized in that the outer wall (22a) of the ring (22) is provided with at least one thread of a first type (28), said net of the first type (28) being intended to cooperate with the notches (7) of the cap (6) intended to close said container (20), said net of the first type (28) comprising, from top to bottom, a first segment (28a) of thread, inclined, a second segment (28b) of thread, substantially horizontal, and a third segment (28c) of thread, inclined, said third segment of thread being furthermore provided with an anti-screwing stop (29).
9. Contenant (20) selon la revendication 8, caractérisé en ce que la paroi extérieure (22a) de la bague (22) est munie d’au moins deux tels filets d’un premier type (28), diamétralement opposés. 9. Container (20) according to claim 8, characterized in that the outer wall (22a) of the ring (22) is provided with at least two such threads of a first type (28), diametrically opposed.
10. Contenant (20) selon la revendication 8 ou 9, caractérisé en ce que la paroi extérieure (22a) de la bague (22) est munie d’au moins quatre tels filets du premier type (28), lesdits quatre filets du premier type (28) étant diamétralement opposés deux à deux. 10. Container (20) according to claim 8 or 9, characterized in that the outer 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 in pairs.
11 . Contenant (20) selon l’une des revendications 1 à 10, caractérisé en ce que la paroi extérieure (22a) de la bague (22) est munie d’au moins un filet d’un deuxième type (30), ledit filet du deuxième type (30) étant destiné à coopérer avec les crans (7) de la capsule (6) destinée à fermer ledit contenant (20), ledit filet du deuxième type (30) comprenant, 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 de filet étant exempt de butée anti-vissage. 11 . Container (20) according to one of claims 1 to 10, characterized in that the outer 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 cap (6) intended to close said container (20), said net of the second type (30) comprising, from top to bottom, a first segment ( 30a) of thread, inclined, a second segment (30b) of thread, substantially horizontal, and a third segment (30c) of thread, said third segment of thread being free of anti-screwing abutment.
12. Contenant (20) selon la revendication 11 , caractérisé en ce que la paroi extérieure (22a) de la bague (22) est munie d’au moins deux tels filets du deuxième type (30), diamétralement opposés. 12. Container (20) according to claim 11, characterized in that the outer wall (22a) of the ring (22) is provided with at least two such threads of the second type (30), diametrically opposed.
13. Contenant (20) selon la revendication 11 ou 12, caractérisé en ce que la paroi extérieure (22a) de la bague (22) est munie d’au moins quatre tels filets du deuxième type (30), lesdits quatre filets du deuxième type (30) étant diamétralement opposés deux à deux. 13. Container (20) according to claim 11 or 12, characterized in that the outer 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 in pairs.
14. Contenant (20) selon l’une quelconque des revendications 8 à 10, caractérisé en ce que la distance allant du deuxième segment (28b) de filet, horizontal, des filets de premier type (28) jusqu’au sommet (27) 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. 14. Container (20) according to any one of claims 8 to 10, characterized in that the distance from the second segment (28b) of thread, horizontal, of the threads of the first type (28) to the top (27) of the rim of the rim has a k value 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)

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

Family

ID=73401741

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EP21778175.6A Active EP4208390B1 (en) 2020-09-04 2021-09-02 Hollow glass container having a specific lip profile

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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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BR112023003892A2 (en) 2023-04-04
FR3113896A1 (en) 2022-03-11
WO2022049348A1 (en) 2022-03-10
FR3113896B1 (en) 2022-08-19
AR123423A1 (en) 2022-11-30
US20230322431A1 (en) 2023-10-12
CL2023000405A1 (en) 2023-08-18
EP4208390B1 (en) 2024-05-15

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