FR2886277A1 - CONTAINER PROVIDED WITH A DISPLACABLE AND RELEVANT CLOSURE TYPE COVER - Google Patents

Abstract

The invention relates to a container (1) of the type that comprises a cylindrical body (2) which is equipped with a screw thread (5) for retaining a corresponding removable cover (6) which, in turn, is provided with a complementary retaining screw thread (9). In this way, the threaded cover (6) can be locked on the container (1) with the application of an initial axial pressure and subsequently unscrewed/rescrewed or unscrewed/locked by a user. The invention is characterised in that the internal screw thread (9) in the cover (6) comprises a plurality of micro-threads and in that the external screw thread (5) on the container (1) comprises at least one thread having a height greater than that of the micro-threads in the cover (6).

Description

CONTAINER PROVIDED WITH A DISPLACABLE AND RELEVANT CLOSURE TYPE COVER

  The present invention relates to a container provided with a lid of the snap-on type which can be screwed and screwed.

  More particularly, it is a container of the type comprising a cylindrical body comprising a bottom and a side wall outside which, near its top, is made a thread. It is intended to retain a corresponding removable closure cover, delimited by a bottom and an elastically deformable peripheral skirt, within which is formed a complementary retaining thread. This threading is adapted to allow the latching of the threaded lid on the container, by an axial initial pressure, after a first filling of a product, and then unscrewingvoying said lid or unscrewing-latching said lid by a user.

  In this type of assembly known from the prior art, a disadvantage lies in the realization of the retaining thread, at the level of the cover, which must have sufficiently fine threads to allow easy and complete clipping of the cover along a vertical axis, by means of a reasonable pressure and without manual screwing up, a sufficient number of threads to allow a precise snap without indexing and holding the lid without causing interference of the lid threads with those of the pot or an incomplete snapping 2886277 2, and that these nets are deep enough to allow later a normal screwing-unscrewing by its user while ensuring a holding of the cover in the case of an attempt to tear the said snap-on lid. The desired results are therefore contradictory.

  The present invention solves this problem and concerns for this purpose a container of the type comprising a cylindrical body comprising a bottom and a side wall outside which, near its top, is formed a retaining thread of a corresponding removable closure cover, delimited by a bottom and an elastically deformable peripheral skirt, within which is formed a complementary retaining thread adapted to allow the precise snap and without indexing of the threaded lid on the container, by a pressure initial axial, after a first filling of a product, and the unscrewing or unscrewing-latching of said lid by a user, characterized in that the internal thread of the lid consists of a plurality of microfilts, made continuously or in portions successive microfilts, and in that the external thread of the container is constituted by at least one net whose section is in the form of a knife, made continuously or in portions of successive nets whose height is greater than that of microfilets of the lid, the pitch of the external threads of the container is equal to the pitch of the inner microfilts of the lid, and the number of microfilter starts of the lid is a multiple of the number of starts external threads of the 2886277 3 container, so as to facilitate the latching thereof and its retention, while allowing later unscrewing-screwing or unscrewing -encliquetage.

  A container and an associated lid thus designed not only overcome the aforementioned drawback, but also allow automation of packaging on a simpler manufacturing line.

  Also achieved is improved sealing of the finished product, which is much more important.

  The present invention also relates to the features which will emerge during the following description, which should be considered in isolation or in all their possible technical combinations.

  This description given by way of nonlimiting example, will better understand how the invention can be made with reference to the accompanying drawings in which: Figure 1 shows a front view of a container equipped with a lid, according to the invention .

  Figure 2 is an enlarged partial sectional view of a lid on a container, according to the invention, being mounted by axial snapping.

  Figure 3 is an enlarged fragmentary sectional view of a lid on a container 2886277 4 according to the invention, after assembly by axial snapping.

  Figure 4 is a front view of a container according to the invention.

  FIG. 5 is a sectional view, on an enlarged scale, of the detail G along the median axis X-X 'of FIG. 4.

  FIG. 6 is a sectional view, on an enlarged scale, of the detail K according to FIG.

  FIG. 7 is a sectional view of a lid according to the invention, intended to be mounted on the container of FIG. 4.

  FIG. 8 is a detail view, in section, on an enlarged scale, of detail B according to FIG. 7.

  FIG. 9 is a detail view, in section, on an enlarged scale, of the detail C according to FIG. 8.

  FIG. 10 is a detail view, in section, on an enlarged scale, of detail D according to FIG. 7.

  Figures 11 and 12 show a lid provided with internal and external sealing means, respectively after insertion on the container and before.

  Figure 13 shows in perspective an overcap positioned on the original lid of the container.

  FIG. 14 is a perspective view of a cover intended to receive the overcap according to FIG. 13.

  FIG. 15 is an exploded perspective view of a container provided with a lid according to FIG. 14 and an overcap according to FIG. 13.

  The container 1 shown in the figures comprises a cylindrical body 2 comprising a bottom 3 and a side wall 4 outside of which, near its top, is formed a retaining thread 5 of a removable closure cover 6 corresponding, delimited by a bottom 7 and a peripheral skirt 8 resiliently deformable. Inside the latter is formed a complementary retaining thread 9 adapted to allow the latching of the threaded lid 6 on the container 1, by an axial initial pressure F, after a first filling of a product, then unscrewing or the unscrewing-latching of said lid 6 by a user.

  According to an essential characteristic of the invention, the internal threading 9 of the lid 6 consists of a plurality of microfilts, made continuously or in portions of successive microfilts, while the external thread 5 of the container 1 is constituted by at least one net whose section is in the form of a knife, made continuously or in portions of successive nets whose height H is greater than that of microfilets of the lid 6, the pitch of the external threads of the container 1 is equal to the pitch of the internal microfilets 6, and the number of microfilets leaving the lid 6 is a multiple of the number of starts of the external threads of the container 1, so as to facilitate the latching thereof and its retention, while allowing later unscrewing -turning or unscrewing-snapping.

  According to an exemplary practical embodiment, the height H of the thread 5 of the container 1 is equal to 1 mm, while the height h of the thread 9 of the cover 6 is equal to 0.5 mm.

  Also according to a practical embodiment, the pitch of the thread 5 of the container 1 and the thread 9 of the cover 6 is equal to 10 mm, the inter-thread distance P of the thread of the container 1 is equal to 2.5 mm, and the inter-thread distance p of the thread 9 of the cover 6 is equal to 0.5 mm, the number of threaded starts of the cover 6 is 40 while the number of threaded starts of the container 1 is 4.

  More particularly, the thread constituting the thread 5 of the container 1 is of triangular section and forms, at the top, an acute angle of such a value as to enable it, during a first unscrewing of the lid 6, to incise deeper the microfilts 9 of the latter, in the manner of a knife, and realize therein a definitive impression corresponding substantially to the knife threads 5 of the container 1.

  In fact, concerning the microfilts 9 of the cover 6, these initially constituted fragile blanks of grooves for easy snapping in an axial direction, then final nets corresponding to those of the container 1 for screwing-unscrewing optimum subsequent after was formed by the knife threads 5 of the container 1 which have penetrated in force the fragile blanks of threads 9 of the lid 6. In addition, in order to facilitate this penetration in force, the constituent material of the container 1 and thus the 5 is a hardness and a module greater than that of the material constituting the cover 6 and thus the blanks of nets 9.

  In the context of the example described here, the container 1 is made of polyprolpylene and the lid 6 is made of high or medium density polyethylene.

  According to the embodiment shown in the figures, the threads / nets 5 of the container 1 has an angle α with respect to the vertical wall of the container 1 of 55 0.

  The lateral distance d separating the inner lower peripheral zone of the lid 6 from the lower outer peripheral zone of the container 1 is less than the height H of the knife threads 5 of the latter, in order to obtain a clamping by elastic deformation of the lid 6 on the container 1 during the first unscrewing, and promote the creation of the final imprint of the net 9 in the lid 6.

  As particularly clearly visible in FIGS. 5 and 9, the microfilts 9 of the lid 6 are also of triangular section, but made in a different orientation than that of the knife threads 5 of the container 1, in that said triangular section of the Microfilts 9 has a first upper side 10 substantially horizontal, and thus 2886277 8 substantially perpendicular to the inner wall of the skirt 8 of the cover 6, and a second inclined lower side 11 forming a slope, made in the direction of the initial snap F in order to favor this one on the one hand, while avoiding its disengagement by vertical translation on the other hand, by taking hold of the upper horizontal side 10 microfilets 9 of the cover 6 against a lower side 12 of the nets- knives 5 of the container 1.

  According to the embodiment shown in FIG. 9, the upper side 10 of the microfilts 9 has been made at an angle α1 of 81 °, but it could of course be made at an angle of 90 °.

  By way of example of embodiment, the angle formed by the lower side 11 of the microfilts 9 forms an angle α2 of 50.

  Moreover, as clearly visible in FIGS. 1, 2, 3, 7, but more particularly 8, the cover 6 comprises a tamper-evident band 13 extending to the lower part of its peripheral skirt 8, beyond the microfilts. 9, to which the band 13 is attached by a low resistance peripheral zone 14. This is defined by a first external peripheral notch 15 and a second internal peripheral notch 16, both of which are made The tamper-evident band also comprises a tongue 23 for initiating the tearing of the tamper-evident band between the band 13 and the skirt 8 at the level of the zone 14. Furthermore, the container 1 comprises a peripheral abutment 17 made under the threads / knives 5 of said container 1 and substantially corresponding in shape to the second internal peripheral notch 16 defining the low resistance zone 14 of the lid 6, in which it is housed to be retained, until tearing of said tamper band 13 by pulling on the tongue 23.

  It should also be noted that the container 1 comprises, under the peripheral stop 17 intended to cooperate with the low resistance zone 14 of the cover 6, a second peripheral stop 18 intended to abut on the lower peripheral edge of the strip 13 of the cover 6, to prevent the taking of the tamper band 13 from underneath and its tearing.

  According to another characteristic of the invention, which is particularly clearly visible in FIG. 8, the cover 6 has an outer upper peripheral rim 19 formed by a fold defining a generally U-shaped inner peripheral housing 20 intended for the engagement of the edge. upper part of the container 1, during closure, said inner housing 20 having two peripheral beads 21, 22. These are offset in height relative to each other, the lower one 21 being formed on one walls of the housing 20 at a distance from the other wall, vis-à-vis, greater than the thickness e of the edge of the container 1, to allow its easy engagement. The other upper bead 22 is made on the other wall at a distance from the first bead 21 less than the thickness e of the edge of the container 1, in order to create a lever effect and consequently a deformation of the housing 20 at the end of snap or end screwing the lid. This has the effect of causing a clamping of said upper edge of the container 1 in the housing 20 of the lid 6, and therefore an internal and external sealing.

  The offset arrangement of the two beads positioned at two different heights provides internal and external sealing, while limiting the friction forces that could oppose unscrewing or screwing.

  According to another embodiment, visible in FIGS. 11 and 12, the cover 6 has a succession of beads 24, 25 (at least one), made on the outer upper peripheral edge and on the inner peripheral edge placed in a screw-in position. -vis, so as to have a smaller distance between these inner beads 24 and outer 25 that the thickness e of the edge of the container 1, to allow a clamping of said upper edge of the container 1 in the housing 20 of the lid 6, and therefore an internal and external seal.

  Moreover, as shown in FIGS. 13, 14 and 15, an overcap 26 is positioned on the cover 6.

  The overcap 26 has in its upper internal face a set of crenellations 27 having a slope on one side and a hook of the other, on its upper lateral face of the movable slats 28, and a peripheral bead 29 on its lower inner face.

  The cover 6 has on its lower outer face a bead 30 for snapping the overcap 26 unmountable, on its upper side a set of crenellations 31 having a slope on one side and a hook of the other, on its upper outer face a succession of vertical notches 32 having a slope on one side and a hook of the other The overcap 26 is snapped onto the cover 6 in a way that can not be dismantled.

  During a screwing movement of the overcap assembly 26 / cover 6 on the container 1, the crenellations 31 of the overcap 26 cling to the crenellations 27 of the cover 6 and allow cohesive movement of the assembly for screwing.

  The shape of the crenellations does not allow cohesion of the overcap 26 and the cover 6 during a unscrewing movement.

  To perform the unscrewing movement, it is necessary that the user exerts pressure on the movable slats 28 of the overcap 26 so that they abut in the notches 32 of the cover 6, and that they thus allow the cohesion of the cover / cover assembly.

  The dexterity necessary for the unscrewing and the support at the same time makes it possible to prevent children from opening the container provided with such a system, and for this purpose is a childproof closure.

2886277 13

Claims (10)

  Container (1) of the type comprising a cylindrical body (2) comprising a bottom (3) and a side wall (4) outside which, near its top, is formed a retaining thread (5) a corresponding removable closure cover (6), delimited by a bottom (7) and a resiliently deformable peripheral skirt (8), inside which a complementary retaining thread (9) is formed capable of allowing the snap-fitting of the threaded lid (6) on the container (1), by an initial axial pressure (F), after a first filling of a product, and then unscrewing-unscrewing or unscrewing-latching said lid (6) by a user , characterized in that the internal thread (9) of the lid (6) consists of a plurality of microfilts, made continuously or in portions of successive microfilts, and in that the external thread (5) of the container (1) is constituted by at least one net whose section is c-shaped bucket, made continuously or in portions of successive nets whose height (H) is greater than that (h) microfilets of the lid (6), the pitch of the outer threads of the container (1) is equal to the pitch of internal microfilets of the lid (6), and whose number of micro microfilters starts from the lid (6) is a multiple of the number of starts of the external threads of the container (1), so as to facilitate the latching thereof and its retention, while allowing later unscrewing-screwing or unscrewing-latching.   2. Container according to claim 1, characterized in that the thread constituting the thread (5) of the container (1) is of triangular section and forms, at the top, an acute angle of such value as to allow it, during a first unscrewing the lid (6), to cut the microfilts (9) of the latter more deeply, in the manner of a knife, and to make a final impression therein, substantially corresponding to the knife thread (5 ) of the container (1).   Container according to claim 2, characterized in that the lateral distance (d) separating the lower inner peripheral zone of the lid (6) from the lower outer peripheral zone of the container (1) is less than the height (H) of knife threads (5) of the latter, in order to obtain a clamping by elastic deformation of the lid (6) on the container (1) during the first unscrewing, and to promote the creation of the final imprint of the thread (9) in the lid (6).   4. Container according to claim 2, characterized in that the microfilters (9) of the lid (6) are also triangular in section, but made in a different orientation to that of the / nets (5) of the container (1), in this sense that said triangular section microfilts (9) has a first substantially horizontal upper side (10), and therefore substantially perpendicular to the inner wall of the skirt (8) of the cover (6), and a second lower side (11) inclined forming a slope, made in the direction of the initial snap (F) to promote it on the one hand, while avoiding its disengagement by vertical translation on the other hand, by taking support of the upper horizontal side (10) microfilters (9) of the lid (6) against a lower side (12) of the knife thread (5) of the container (1).   5. Container according to one of claims 1 to 4, characterized in that the cover (6) comprises a tamper-evident band (13) extending at the lower part of its peripheral skirt (8), beyond the microfilter (9), to which the strip (13) is attached by a low resistance peripheral zone (14), defined by a first external peripheral notch (15) and a second internal peripheral notch (16), one and the other other being formed opposite the band (13) and the skirt (8) at the zone (14), and in that the container (1) comprises a peripheral stop (17) produced under the knife threads (5) of said container (1) and of a shape substantially corresponding to the second internal peripheral notch (16) defining the zone of low resistance (14) of the lid (6), in which it is housed to be retained therein , until tearing of said tamper band (13) by pulling on a tongue (23).   Container according to one of Claims 1 to 5, characterized in that the constituent material of the container (1), and therefore of the knife thread (5), is of a hardness as well as an upper module. to that of the material constituting the cover (6), and thus the blanks of threads (9), so as to allow the knife threads to penetrate the fragile blanks of the grooves of the cover (6).   Container according to one of claims 1 to 6,   characterized in that the constituent material of the container (1) is polypropylene.   8. Container according to one of claims 1 to 7, characterized in that the constituent material of the lid (6) is polyethylene, preferably high or medium density polyethylene.   9. Container according to one of claims 1 to 8, characterized in that the cover (6) has an outer upper peripheral flange (19) formed by a fold defining a generally U-shaped inner peripheral housing (20) for when the upper edge of the container (1) is engaged during closure, said inner housing (20) having two peripheral beads (21, 22), offset in height relative to each other, of which the a bottom (21) is formed on one of the walls of the housing (20) at a distance from the other wall, vis-à-vis, greater than the thickness (e) of the edge of the container (1), to allow its easy engagement, and the other upper (22) is formed on the other wall at a distance from the first bead (21) less than the thickness (e) of the edge of the container (1), in order to create a leverage effect and consequently a deformation of the housing (20) at the end of snapping or at the end of screwing of the cover, having the effect of causing a clamping of said upper edge of the container (1) in the housing (20) of the cover (6), and thus an internal and external sealing.   2886277 17 Container according to one of Claims 1 to 8, characterized in that the cover (6) has a succession of beads (24, 25) (at least one) made on the outer upper peripheral rim and on the peripheral rim. internal facing, so as to form a generally U-shaped housing, for the engagement of the upper edge of the container (1), during closure, said inner housing having a plurality of peripheral beads ( 24, 25) (at least one), with a smaller distance between these inner (24) and outer beads (25) than the thickness e of the container edge (1), to allow a clamping of said upper edge of the container. (1) in the housing (20) of the cover (6), and therefore an internal and external sealing.