• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    COVER FOR CLOSING A CONTAINER AND METHOD FOR MANUFACTURING THE SAME. It is a lid (1) for closing a container that comprises a neck that delimits an opening, said lid (1) extending along a central geometric axis (A) and comprising: a body part ( 2) molded from a thermoplastic material and which includes a top wall (5) and a skirt (15), a handle part (30) at least partially molded around the central geometric axis (A), on a part of the body part (2), from a thermoplastic elastomer (TPE) which is softer than the thermoplastic material of the body part (2), and where the handle part (30) is overmolded only on one part of an external surface (18) of the skirt (15) and where the handle portion is delimited along the central geometric axis (A) by a top edge (32) disposed at a distance from the top wall (5) and a bottom edge (31) separated from the top edge (32) towards a free end (16) of the skirt (15).
    公开号:BR112015015666B1
    申请号:R112015015666-5
    申请日:2012-12-31
    公开日:2021-03-09
    发明作者:Christine Gehringer；Michel Roussy
    申请人:Societe Anonyme Des Eaux Minerales D'evian Et En Abrégé S.A.E.M.E.；
    IPC主号:
    专利说明:

    [001] The invention relates to a lid for closing a container that comprises a neck that delimits an opening, and a method for making it.
    [002] In the prior art, a variety of packaging featuring lids to close a container has been developed for various types of products, such as personal care products and household products. These packages consist of a container that is threaded around the mouth or opening of the container and includes a lid with a skirt.
    [003] For example, WO2006076747, considered the closest document to the state of the art, describes a screw-shaped cap for a two-liter bottle containing fizzy drink that wraps a conventional main part of rigid plastic with an elastic ring in your return. The ring provides such flexibility that it allows the cap to be hermetically closed at the neck of the bottle.
    [004] The present invention has advantages over WO2006076747 since that document fails to reveal a lid in which, above a bottom portion including the free end, the outer surface of the skirt has an annular bottom thread around the central geometric axis, the bottom edge of the handle part is separated from the free end of the skirt, said bottom edge is in contact with the bottom thread, the ribs have a thickness measured radially in relation to the central geometric axis, which corresponds to a thickness measured radially in relation to the central geometric axis of the bottom fillet.
    [005] The characteristics of the present invention related to the grip part, namely its material, its arrangement and the thickness of the ribs, combine to provide the technical effect of improving the grip / grip of the lid, while providing a nice look and feel.
    [006] The present invention, therefore, solves the technical problem of improving the grip / grip of the lid while providing a pleasant appearance and touch. These technical advantages and effects are not disclosed in the state of the art, in particular, in WO2006076747.
    [007] In particular, the invention relates to a cover of the type that extends along a central geometric axis and which comprises: - a body part molded from a thermoplastic material, such as a polyolefin, preferably a polyethylene (PE) or a polypropylene (PP), most preferably from high density polyethylene (HDPE), said body part including a top wall transverse to the central geometric axis and a skirt that extends around from the central geometric axis from the top wall towards a free end, the skirt having an inner surface that defines a housing to accommodate the neck of the container and an outer surface opposite the inner surface, - a molded handle part at least partially around the central geometric axis, over a part of the body part, from a thermoplastic elastomer (TPE), said thermoplastic elastomer being softer than the thermo material body part plastic.
    [008] A known cover of this type is especially disclosed in EP 1 361 982.
    [009] The handle portion of the known lid comprises enlarged portions that extend from the top wall of the body part. The handle part is then arranged on a corner of the body part between two substantially perpendicular surfaces of the top wall and the skirt.
    [0010] However, the thermoplastic elastomer from which the grip part is produced can hardly be evenly molded in the corner of the body part, especially when the shape of the grip part varies. The arrangement of the known handle part results in the deterioration of the appearance of the cover and reduced adaptability of the forceps part. Furthermore, the arrangement of the known handle part does not assist in providing an effective grip of the cover by a user.
    [0011] The invention is dedicated to solving the problems mentioned above.
    [0012] For this, according to a first aspect, the invention provides a cover of the type mentioned above in which the handle part is overmolded only on a part of the outer surface of the skirt, the handle part being delimited along from the central geometric axis by a top edge disposed at a distance from the top wall and a bottom edge separated from the top edge towards the free end of the skirt.
    [0013] Therefore, the handle part disposed only on the outer surface of the skirt can be easily over-molded to provide an improved appearance for the cover. It can also be easily designed in different formats, covering more or less desired parts of the outer surface of the skirt, thus improving the adaptability of the clamp part. In addition, the arrangement of the handle part on the outer surface of the skirt that most satisfies the physiological apprehension of the cap between the user's fingertips provides an improved apprehension without hurting the fingers, such as the cuts usually present in the cap skirt. thermoplastics could do.
    [0014] According to a relevant characteristic of the invention, the raw material of the clamp, that is, TPE, has Shore A hardness preferably less than or equal to 65, with more preference between 35 and 60 and even more preferably between 45 and 55.
    [0015] The TPE can be advantageously chosen from the elastomers, which are compatible with the thermoplastic raw material of the body part of the cover. "Compatible" refers, for example, to the fact that TPE must be moldable and, therefore, injectable into the thermoplastic raw material.
    [0016] The TPE can be, for example, from the following product families: Styrene block copolymers; Polyolefin blends; Elastomeric alloys (TPE-v or TPV); Thermoplastic polyurethanes; Thermoplastic copolesters; Thermoplastic polyamides, with styrenic block copolymers being preferred and Styrene / Ethylene-Butylene / Styrene (SEBS) is more particularly preferred.
    [0017] The outer surface of the skirt may have a periphery around the central geometric axis and the handle part extends over at least 30%, preferably at least 50% of the periphery of the outer surface of the skirt, more preferably the part handle extends across the periphery of the outer surface of the skirt. In this document, the periphery is understood as a circle defined by the intersection of the skirt and perpendicularly flat to the central geometric axis. Therefore, a handle part that extends over the entire periphery of the outer surface of the skirt is in the shape of a ring. Similarly, a handle portion extending over 50% of the periphery of the outer surface of the skirt is in the shape of a ring half.
    [0018] Exceptionally, the surface of the handle part could represent, in an increasing order of preference, from 5 to 90%, 10 to 60%, 20 to 50% of the skirt surface.
    [0019] The handle part can be a common ring, but it can also comprise gripping portions that are equally distributed around the geometric axis.
    [0020] In particular, a handle portion may comprise enlarged portions that form the gripping portions and narrower portions that connect two adjacent gripping portions, preferably in order to define waves.
    [0021] For example, the bottom edge of the handle part can be substantially flat and the top edge of the handle part can be curved to define the grip portions that extend from the bottom edge and the portions narrow.
    [0022] These different possible shapes of the handle part could improve the cover design.
    [0023] Advantageously, the handle part could be prominent in relation to the skirt. Such prominence may result from the handle part as a whole and / or from the fact that the outer surface of said handle part comprises some discrete peaks and / or ribs and / or blocks. This prominence could improve the grasp of the lid by the fingers for opening and closing the container. A prominent embodiment (turning molding) of the handle part is preferred according to the invention.
    [0024] In one embodiment, the lid also comprises a locating member that extends over the outer surface of the skirt, parallel to the central geometric axis, from the top edge of one of the narrow portions of the clamp part, in towards the top wall, the location member being produced from the same thermoplastic elastomer as the clamp part.
    [0025] The outer surface of the skirt may have a groove bounded along the central geometric axis by a top side disposed at a distance from the top wall and a separate bottom side from the top side towards the end free from the skirt, the handle part filling the groove.
    [0026] It may be interesting that at least a part of the groove surface is treated in order to increase the adhesion of the TPE handle part to the thermoplastic raw material of the body part of the cover. For example, this surface treatment can be a scrub or any suitable treatment to increase roughness. The treatment may also consist of designing a sticky interface between the handle part and the groove.
    [0027] In a preferred embodiment, the handle part is obtained when modeling with overlapping only on a part of the outer surface of the cover skirt, while when modeling with overlapping there is (there are) only one (or several) injection (s) of the TPE on the side of the cover. In this embodiment, the handle part of the lid skirt comprises only one (or several) injection point (s).
    [0028] The lid may also comprise a plurality of ribs which extend parallel to the central geometric axis on the outer surface of the skirt, between the top edge of the handle part and the top wall.
    [0029] Each rib can have a bottom end in the vicinity of the top edge of the handle part and a top end opposite the bottom end, the top end being disposed at a distance from the top wall.
    [0030] The ribs can be integral with the skirt.
    [0031] In a variation, the ribs can be integral with the clamp part.
    [0032] The bottom edge of the handle part can be separated from the free end of the skirt.
    [0033] According to a second aspect, the invention relates to a method for manufacturing a lid as defined above, which comprises the following steps: - molding, in a mold cavity, the body part from a thermoplastic material, such as polyethylene (PE) or polypropylene (PP), preferably from high density polyethylene (HDPE), - overlapping the handle part at least partially around the geometry axis in the mold cavity central, only on a part of the outer surface of the skirt, from a thermoplastic elastomer (TPE), said thermoplastic elastomer being softer than the thermoplastic material of the body part.
    [0034] In one embodiment, the step of molding the body part may comprise injecting the thermoplastic material along a frontal geometric axis coaxial to the central geometric axis of the cover, through a frontal nozzle opening in the mold cavity, being that the step for overmolding the handle part may comprise injecting the thermoplastic elastomer along a lateral geometric axis perpendicularly to the frontal geometric axis, through a lateral nozzle opening in the cavity in order to face the outer surface of the skirt.
    [0035] In another embodiment, the step of molding the body part may comprise injecting the thermoplastic material along a frontal geometric axis coaxial to the central geometric axis of the lid, through a frontal nozzle opening in the mold cavity, and the The step for overmoulding the handle part may comprise injecting the thermoplastic elastomer along a lateral geometry axis parallel to and separate from the frontal geometry axis, through a lateral nozzle opening in the mold cavity in the vicinity of (in particular, tangentially a) outer surface of the skirt.
    [0036] In addition, in the step of molding the body part, the cavity can be provided with molding elements complementary to the clamp part, and before the step to overmould the clamp part, the molding elements can be removed from the cavity .
    [0037] The invention also relates to a container sealed with the lid, preferably filled with a liquid, preferably a drink, water, for example, energy drinks with or without gas or carbonated drinks such as sodas or colas. In a preferred embodiment, the container is a bottle. In a preferred embodiment, the bottle is filled with liquid and sealed with the cap. In this embodiment, it is preferable that the lid has anti-tamper security on the bottom portion of the lid, attached to the lid. Anti-tamper security generally separates from the cap (at the bottom of the skirt) when opening and leaves a ring on the bottle and a separate cap.
    [0038] Other objectives and advantages of the invention will emerge from the following disclosure of particular modalities of the invention pointed out as non-limiting examples, the disclosure being made with reference to the accompanying drawings, in which: - Figure 1 is a view lateral in partial longitudinal section of a lid according to a first embodiment of the invention, the lid comprising a molded body part and a molded handle part over a skirt of the body part, - Figure 2 is a schematic representation of a step of molding the cover body part of Figure 1, - Figure 3 is a schematic representation of an overmoulding step of the handle part of the cover of Figure 1, - Figure 4 is a side view in partial longitudinal section of a variation of the cover of Figure 1, - Figure 5 is a perspective view of a cover, according to a second embodiment of the invention, - Figure 6 is a perspective view of a cover, according to a third embodiment of the invention, - Figure 7 is a perspective view of a variation of the cover of Figure 6.
    [0039] In the Figures, the same numerical references refer to the same or similar elements. Figure 1 represents a first embodiment of a lid 1 for closing the opening of a container, such as a plastic bottle, adapted to receive a product, and especially a liquid product such as water, optionally flavored and / or carbonated, a soda, a fruit juice, a liquid milk-based product or the like. The container comprises a neck that delimits the opening for pouring the product.
    [0040] In the first illustrated embodiment, the cover 1 has a symmetry of revolution around a central geometric axis A and comprises a body part 2 molded from a thermoplastic material that provides, once molded, an overall stiffness. The body part is preferably produced from high density polyethylene (HDPE) while, in other embodiments, it could be produced from any other suitable thermoplastic material such as polyethylene (PE) or polypropylene (PP).
    [0041] The body part 2 includes a top wall 5 which extends transversely, and especially perpendicularly in the first illustrated embodiment, to the central geometric axis A, and the skirt 15 extends around the central geometric axis A from from the top wall 5 to a free end 16. Although not limited thereto, the top wall 5 has a circular outer periphery 6 from which the annular skirt 15 of circular cross section extends. The top wall 5a and skirt 15 have respective internal surfaces 7, 17 which define a housing 10 to accommodate the neck of the container, and respective external surfaces 8, 18 opposite to the internal surfaces 7, 17.
    [0042] In the first illustrated embodiment, the inner surface 17 of the skirt 15 is provided with internal threads 19 adapted to cooperate with corresponding external threads on the neck of the container for fixing the lid 1 to the neck of the container. In other embodiments, the lid 1 could otherwise be attached to the neck of the container by force fitting or pressure fitting.
    [0043] In addition, to provide a firm fixation of the lid 1 to the neck of the container, the top wall 5 has an annular crown 11 that extends perpendicularly to the inner surface 7 thereof within the housing 10. The crown 11 is arranged at a distance from the inner surface 17 of the skirt 15 so that the neck of the container can be received between the inner surface 17 of the skirt 15 and an outer surface 13 of the crown 11, the crown 11 extending into the neck, when cap 1 is threaded on the neck. To improve firmness, an annular protrusion 12 is provided on the outer surface 13 of a free end 14 of the crown 11. In other embodiments, a firm fixation of the cap 1 to the neck could be provided in any other suitable way.
    [0044] A bottom portion 20 of skirt 15 comprising the free end 16 is adapted to provide a tamper identification system. In particular, the free end 16 of the skirt 15 is folded inwardly with respect to the rest of the bottom portion 20 of the skirt 15 to extend into the housing 10 and tilt towards the top wall 5. A slit cut, which consists of forming in a plane perpendicular to the central geometric axis a weakened portion that connects the bottom portion 20 of the skirt 15 and a remaining portion of the skirt 15, can then be executed to form the bottom portion 20 of the skirt 15 as an identifying strip of violation. The weakened portion may, for example, be a continuous blind gap or not through openings. Such cracks or openings could be obtained by cuts in the molded lid or by several molded bridges that join the bottom portion 20 to the rest of the skirt. In other modalities, a system for the identification of violations of any other suitable type could be implemented.
    [0045] Above the bottom portion 20 of the skirt 15 and, therefore, at a distance from the free end 16 of the skirt 15, the outer surface 18 has an annular bottom fillet 21 that extends around the central geometric axis A. A annular top fillet 22 extending around the central geometrical axis A is arranged at a distance along the central geometrical axis A of the bottom fillet 21, towards the top wall 5. In the first illustrated embodiment, the bottom fillet 21 is substantially flat, that is, it extends entirely in a plane perpendicular to the central geometric axis A, and the top fillet 22 is curved (in the form of waves), that is, it extends on both sides of a plane median in a perpendicular way to the central geometric axis A. In particular, the top fillet 22 has a sine wave shape. Bottom fillets 21 and top 22 define between them a groove 23 substantially arranged in a central portion of skirt 15 and bounded along the central geometric axis A by a flat bottom side 24 that belongs to bottom fillet 21 and a side curved top 25 which belongs to top fillet 22. Groove 23 extends across the periphery of the outer surface 18 of skirt 15 around the central geometric axis A. Groove 23 has enlarged portions that extend from the bottom side 24 and are equally distributed around the central geometric axis A, and narrow or narrower portions that connect two adjacent enlarged portions.
    [0046] According to the invention, the handle part 30 is overmolded only on a part of the outer surface 18 of the skirt 15 around the central geometrical axis 30. The handle part 30 is produced from a thermoplastic elastomer (TPE ) which is softer than the thermoplastic material of the body part 2 in order to provide better frictional features and better tactile sensations to a user. In a particular non-limiting example, the thermoplastic elastomer is that produced by the CTS company of the Téfabloc ® brand (TO FT 823 75 A, for example). In order to enhance the appearance of the lid 1, the thermoplastic elastomer may also have a different color than that of the thermoplastic material of the body part 2. To further enhance the appearance of the lid 1, the outer surface 8 of the top wall 5 and / or an external surface of the handle part 30 may be provided with a pattern, a design and / or a print or the like.
    [0047] In the first illustrated embodiment, the handle part 30 fills the groove 23 and has a thickness measured radially in relation to the central geometric axis A which corresponds to the depth of the groove 23 measured radially in relation to the central geometric axis A. The outer surface the handle part 30 is then flush with that of the bottom 21 and top 22 threads. In addition, the handle part 30 thus extends substantially centrally over the entire periphery of the outer surface 18 of the skirt 15. The handle part 30 is thus also delimited along the central geometric axis A by: - a flat bottom edge 31 in contact with the bottom side 24 of the bottom fillet 21, the bottom edge 31 of the the handle part 30 is separated from the free end 16 of the skirt 15, and - a curved (wave-shaped) top edge 32 in contact with the top side 25 of the top fillet 22, the top edge 32 of the handle part 30 is separated from the top wall 5.
    [0048] The handle part 30 also comprises enlarged portions that form gripping portions 33 that extend from the bottom edge 31 and are equally distributed around the central geometric axis A, and narrow or narrower portions 34 that connect two adjacent gripping portions 33.
    [0049] In the first embodiment of Figure 1, the housing 10 as well as the top wall 5 are devoid of thermoplastic elastomer.
    [0050] The handle part 30 preferably covers between 10% and 70% of the outer surface of the skirt 15 and includes the violation identification strip 20, and between 15% and 90%, especially between 40% and 60%, of the surface outside of skirt 15 and excludes the breach identifier strip 20.
    [0051] Above the top thread 22 and below the top wall 5, the lid 1 has a plurality of ribs 35 that extend parallel to the central geometric axis A and are equally distributed over the outer surface 18 of the skirt 15. In this first embodiment, the ribs 35 are integral with the skirt 15 and molded from the same thermoplastic material as the body part 2. Particularly, each rib 35 has a bottom end 36 connected to the top fillet 22, and therefore arranged in the vicinity of the top edge 32 of the handle part 30, and a top end 37 opposite the bottom end 36. The ribs 35 have different lengths between the bottom 36 and top 37 ends thereof adapted to compensate for the curvature ( waveform) of the top fillet 22. The top ends 37 of them can then be arranged in the same plane perpendicular to the central geometric axis A, at a distance from the top wall 5. The ribs 35 t they also have a thickness measured radially in relation to the central geometric axis A, which corresponds to a thickness measured radially in relation to the central geometric axis A of the bottom fillets 21 and top 22. These ribs are intended to facilitate the apprehension of the cover 1 by the device bottling on the industrial bottling line.
    [0052] In relation to Figures 2 and 3, a method will now be revealed for making the cover 1 shown above.
    [0053] To manufacture cover 1, a mold that has a cavity adapted to cover 1 is provided. Molding elements complementary to the handle part 30 can be positioned in the cavity so that a remaining space within the cavity is adapted according to the body part 2. The mold comprises: - at least one front nozzle, represented schematically by an arrow Nf in Figure 2, which opens in the mold cavity to mold the body part 2, and - at least one side nozzle, schematically represented by an arrow N1 in Figure 3, which opens in the mold cavity to mold the handle part 30.
    [0054] In particular, the front nozzle Nf extends along a front geometric axis that corresponds to the central geometric axis A of the cover 1, substantially in a location that corresponds to a center of the top wall 5. The lateral nozzle Nl extends along a lateral geometric axis perpendicular to the frontal geometric axis, so as to face the outer surface 18 of the skirt 15 substantially at a location that corresponds to the groove 23 of the outer surface 18 of the skirt 15.
    [0055] In Figure 2, in a molding step, the thermoplastic material heated to a fluid state is injected through the front nozzle Nf into the remaining space of the cavity to mold the body part 2. Once the thermoplastic material has cooled and stiffened, the body part 2 is formed. The molding elements can be removed from the cavity.
    [0056] In Figure 3, in an overmoulding step, the thermoplastic elastomer, heated to be in a fluid state, is injected through the lateral nozzle N1, into the mold cavity in which the body part 2 remains. The thermoplastic elastomer can fill the groove 23 of the skirt 15 to form the handle part 30. Once the thermoplastic material has cooled, the mold can be flattened and the lid 1 can be removed from the cavity. There could be several lateral injection nozzles N1 and consequently several injection points in the handle part 30, but in this example, there is only one lateral injection nozzle N1 and consequently only one injection point 301 in the handle part 30.
    [0057] A following folding step can be performed to fold the free end 16 of the skirt 15 inward, before the slitting step is carried out to form the tampering strip 20.
    [0058] The invention was revealed with a cap 1 showing a symmetry of revolution with a circular top wall 5, an annular skirt 15 of circular cross section and a corresponding annular handle part 30. However, the invention is not limited to it and the lid 1 could have any other suitable shape, the top wall 5, the skirt 15 and the handle part 30 being adapted accordingly. In addition, although it has been revealed in a way in which it extends in a central portion of the skirt 15 over the entire periphery of the outer surface 18 of the skirt 15, any other suitable arrangement of the handle part could be provided. In particular, the handle part 30 could be moved towards the free end 16 or the top wall 5, at the same time without extending over the top wall 5. The handle part 30 could also extend over a part of the periphery the outer surface 18 of the skirt 15, and especially about at least 30%, preferably at least 50%, of that periphery.
    [0059] Furthermore, the handle part 30 need not be arranged in a groove 23 between the bottom 24 and top 25 sides of the bottom 21 and top 22 threads. In fact, the bottom 31 and top ends 32 of the handle part 30 could be defined during the overmoulding step through a suitable adaptation of the mold cavity.
    [0060] In relation to this, a lid 1 'according to a variation of this first embodiment previously revealed in Figures 1 to 3 is represented in Figure 4.
    [0061] The lid has a body part 2 'with a skirt 15' devoid of the top thread 22 described above and the groove 23 described above. The handle part 30, the shape of which is the same as that previously disclosed, has a flat bottom edge 31 in contact with the bottom side 24 of the bottom fillet 21 and a free curved top edge 32 projecting from the outer surface 18 of skirt 15 '.
    [0062] The cover 1 'according to the variation shown in Figure 4 also differs from the cover 1 previously revealed in relation to the ribs 35' that are integral with the handle part 30. Each rib 35 'is molded from the same thermoplastic elastomer than the handle part 30 with a lower end 36 'connected to the top edge 32 of the handle part 30, and a top end 37' disposed at a distance from the top wall 5.
    [0063] Additional ribs 40 are provided on the outer periphery of the top wall 5.
    [0064] The other parts of the lid according to the variation that are identical to those of lid 1 previously revealed according to the first modality will not be revealed in more detail. See the description above for more details.
    [0065] To manufacture the lid according to the variation, the molding elements complementary to the handle part 30 and the ribs 35 are used during the molding step. After the molding elements are removed, the overmoulding step is carried out to form the handle part 30 to the ribs 35 'through the side nozzle N1 which faces the outer surface 18 of the skirt 15.
    [0066] Figure 5 represents a cover 1 "according to a second embodiment of the invention, which differs from cover 1 according to the first embodiment previously described in relation to Figure 1 in relation to the handle part 30 that it is a regular ring having a flat bottom edge 31 and a flat top edge 32 in contact with the top side 25 of the top thread 22, and the top edge 32 of the handle part 30 being separated from the wall top 5.
    [0067] Another difference in relation to the first modality is the presence of prominent drop-shaped blocks 60 on the outer surface of the handle part 30. These prominent drop-shaped blocks 60 are useful to improve the grip of the handle part 30.
    [0068] The bottom portion 20 of this 1 "cover could also be equipped with an anti-tamper security system as previously described.
    [0069] This cap 1 '' also has parallel ribs distributed annularly 35 '' ', similar to the ribs (35, 35') described above the first modality and its variation, located on the top fillet 22 and just below the shoulder between skirt 15 and top wall 5.
    [0070] Figure 6 represents a cover 1 '' 'according to a third embodiment of the invention, being different from cover 1 & 1 "according to the first & second modalities previously described in relation to Figure 1 & 2 in relation to the presence of a locating member 45 and the method for manufacturing.
    [0071] The locating member 45 produced from the same thermoplastic elastomer as the handle part 30, extends over the outer surface 18 of the skirt 15, parallel to the central geometric axis, from the top edge 32 of a of the narrow portions 34 of the handle part 30, towards the top wall 5. In the illustrated embodiment, an extension of the locating member 45 is configured on the outer surface 8 of the top wall 5. The locating member 45 can be used to identify a 1 "cover orientation.
    [0072] The other parts of cover 1 "'according to the third embodiment that are identical to those of cover 1 according to the first embodiment previously described in relation to Figure 1 will not be revealed in more detail. See the description above for more Details.
    [0073] To manufacture the cap 1 '"according to the third embodiment, a mold according to a third embodiment that has a cavity, molding elements and at least one frontal nozzle similar to that previously described in relation to Figures 2 and 3 However, in the mold according to the third embodiment, the lateral geometric axis of the at least one lateral nozzle extends parallel to the frontal geometric axis in the vicinity of the outer surface 18 of the skirt 15. In the illustrated embodiment, the nozzle side faces the outer surface 8 of the top wall 5. In another embodiment, to avoid extension of the locating member 45 on the top wall 5, the side nozzle could extend tangentially to the outer surface 18 of the skirt 15.
    [0074] The thermoplastic material can be injected through the front nozzle Nf to mold the body part 2. After the molding elements are removed from the cavity, the thermoplastic elastomer can be injected through the lateral nozzle Nl, into the mold cavity in which the body part 2 remains, to overmould the handle part 30 on the outer surface 18 of the skirt and form the locating member 45. The next folding and slitting steps can then be carried out.
    [0075] A cover 1 "" according to a variation of the third modality previously described in relation to Figure 5 is represented in Figure 6.
    [0076] The lid 1 "" according to a variation of the third embodiment has a general structure identical to that of the lid 1 'according to the variation of the first embodiment. Particularly, as for the lid according to the variation of the first embodiment, the handle part 30 of the lid 1 '' '' has a free curved top edge 32 that protrudes from the outer surface 18 of the skirt 15 'and from from which the ribs 35 'integral with the handle part 30 extend. Additional ribs 40 are also provided on the outer periphery 6 of the top wall 5. See the description above for more details in relation to the other parts of the cover 1 "".
    [0077] However, in contrast to the cap 1 'according to the variation of the first embodiment, the cap 1 "" according to the variation of the third embodiment has the locating member 45 disclosed above and can be produced according to the method revealed in relation to the manufacture of the cover 1 "'according to the third modality.
    权利要求:
    Claims (10)
    [0001]
    1. Lid (1 ') for closing a container comprising a neck that delimits an opening, said lid (1') extending along a central geometric axis (A) and comprising: - a body part (2 ') molded from a thermoplastic material, such as a polyolefin, selected from a polyethylene (PE), a polypropylene (PP), or a high density polyethylene (HDPE), said body part (2') includes a top wall (5) transverse to the central geometric axis (A) and a skirt (15 ') that extends around the central geometric axis (A) from the top wall (5) towards a free end (16), and said skirt (15 ') has an inner surface (17) that defines a housing (10) to accommodate the neck of the container and an outer surface (18) opposite the inner surface (17), - a handle part (30) at least partially molded around a central geometrical axis (A), over a part of the body part (2 '), from a thermoplastic elastomer (TPE), said thermoplastic elastomer being softer than the thermoplastic material of the body part (2 '), where the handle part (30) is overmolded only on part of the outer surface (18 ) of the skirt (15 ') and the handle part (30) being delimited along the central geometric axis (A) by a top edge (32) disposed at a distance from the top wall (5) and an edge bottom (31) separated from the top edge (32) towards the free end (16) of the skirt (15 '), said cover (1') being characterized by the fact that the handle part (30) has ribs integral (35 ') therein, where above the bottom portion (20) including the free end (16), the outer surface (18) of the skirt (15') has an annular bottom thread (21) around the central geometric axis, the bottom fillet (21) having a flat bottom side (24), the bottom edge (31) of the handle part (30) being separated from the free end (16) of the skirt (15 '), said edge bottom (31) being in contact with the bottom side (24) of the bottom thread (21), where the bottom edge (31) of the handle part (30) is flat and the top edge (32) of the handle part (30) is curved to define the handle portions (33) that extend from the bottom edge (31) and the narrow portions (34), the ribs (35 ') extend in a way parallel to the central geometric axis (A) on the outer surface (18) of the skirt (15 '), between the top edge (32) of the handle part (30) and the top wall (5), and the ribs (35 ') having a thickness measured radially in relation to the central geometric axis (A), which corresponds to a thickness measured radially in relation to the central geometric axis (A), of the annular bottom fillet (21).
    [0002]
    2. Lid (1 '), according to claim 1, characterized by the fact that the outer surface (18) of the skirt (15') has a periphery around the central geometric axis (A), the part of handle (30) extends over at least 30% of the periphery of the outer surface (18) of the skirt (15 ').
    [0003]
    3. Cover (1 ') according to claim 2, characterized in that the handle part (30) extends over at least 50% of the periphery of the outer surface (18) of the skirt (15').
    [0004]
    4. Cover (1 ') according to claim 2, characterized in that the handle part (30) extends over the entire periphery of the outer surface (18) of the skirt (15').
    [0005]
    5. Cover (1 ') according to claim 1, characterized in that the handle part (30) comprises handle portions (33) distributed equally around the central geometric axis (A).
    [0006]
    6. Cover (1 ') according to claim 5, characterized in that the handle part (30) comprises enlarged portions that form the handle portions (33) and narrower portions (34) that connect two portions adjacent handles (33) in order to define waves.
    [0007]
    7. Cover (1 ') according to any one of claims 1 to 6, characterized by the fact that the handle part (30) is prominent in relation to the skirt, and that prominence results from the handle part (30) ) as a whole and / or the fact that the outer surface of said handle part (30) comprises some discrete peaks and / or ribs and / or blocks.
    [0008]
    8. Method for making a lid (1 '), as defined in any one of claims 1 to 7, characterized in that it comprises the following steps: - molding, in a mold cavity, the body part (2' ) from a thermoplastic material, selected from polyethylene (PE), polypropylene (PP), or high density polyethylene (HDPE), - overmould, in the mold cavity, the handle part (30) at least partially around the central geometric axis (A), just over a part of the outer surface (18) of the skirt (15 '), from a thermoplastic elastomer (TPE), said thermoplastic elastomer being softer than the thermoplastic material of the part body (2 ').
    [0009]
    9. Method according to claim 8, characterized in that the step of molding the body part (2 ') comprises injecting the thermoplastic material along a frontal geometric axis coaxial to the central geometric axis (A) of the lid (1 '), through an opening of a frontal nozzle (Nf) in the mold cavity, and the step of overmolding the handle part (30) comprises injecting the thermoplastic elastomer along a lateral geometric axis perpendicular to the frontal geometric axis , through an opening of the side nozzle (Nl) in the cavity so as to face the outer surface (18) of the skirt (15 ').
    [0010]
    10. Method according to claim 8, characterized by the fact that: - in the step of molding the body part (2 '), the cavity is provided with molding elements complementary to the handle part (30), and - before the step of overmolding the handle part (30), the molding elements are removed from the cavity.
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    同族专利:
    公开号 | 公开日
    RU2635793C2|2017-11-15|
    MX365009B|2019-05-20|
    EP2938552A1|2015-11-04|
    US10265897B2|2019-04-23|
    EP2938552B1|2019-02-13|
    CN105189300B|2017-05-31|
    MX2015008522A|2015-09-10|
    PL2938552T3|2019-09-30|
    RU2015131853A|2017-02-06|
    ES2725561T3|2019-09-24|
    WO2014101973A1|2014-07-03|
    JP6088662B2|2017-03-01|
    BR112015015666A2|2017-07-11|
    US20150336716A1|2015-11-26|
    AR096282A1|2015-12-23|
    CN105189300A|2015-12-23|
    JP2016506344A|2016-03-03|
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    法律状态:
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-09-17| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-08-04| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law|
    2020-12-29| B09A| Decision: intention to grant|
    2021-03-09| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 31/12/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/EP2012/077116|WO2014101973A1|2012-12-31|2012-12-31|Cap for closing a container comprising a neck delimiting an opening and method for manufacturing the same|
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