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EP4166471B1 - Kopf fur eines flexiblen rohrs und rohr mit einem solchen kopf - Google Patents

Kopf fur eines flexiblen rohrs und rohr mit einem solchen kopf Download PDF

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Publication number
EP4166471B1
EP4166471B1 EP22201530.7A EP22201530A EP4166471B1 EP 4166471 B1 EP4166471 B1 EP 4166471B1 EP 22201530 A EP22201530 A EP 22201530A EP 4166471 B1 EP4166471 B1 EP 4166471B1
Authority
EP
European Patent Office
Prior art keywords
cover
head
pin
legs
face
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.)
Active
Application number
EP22201530.7A
Other languages
English (en)
French (fr)
Other versions
EP4166471A1 (de
Inventor
Sylvain DEFERT
Franck Fritsch
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.)
Albea Services SAS
Original Assignee
Albea Services 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 Albea Services SAS filed Critical Albea Services SAS
Publication of EP4166471A1 publication Critical patent/EP4166471A1/de
Application granted granted Critical
Publication of EP4166471B1 publication Critical patent/EP4166471B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
    • B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
    • B65D47/0833—Hinges without elastic bias
    • B65D47/0847—Hinges without elastic bias located within a flat surface of the base element
    • 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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/02—Body construction
    • B65D35/10—Body construction made by uniting or interconnecting two or more components
    • 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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/44—Closures
    • 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
    • B65D55/00—Accessories for container closures not otherwise provided for
    • B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
    • B65D55/024—Closures in which a part has to be ruptured to gain access to the contents
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
    • B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage

Definitions

  • the invention relates to a head of a flexible tube, also called a tube head or closure cap or “service cap” or “hinged cap” or “flip top”.
  • the invention also relates to a flexible tube comprising such a head.
  • the flexible tube is capable of storing and dispensing a fluid, creamy or pasty material. This is generally a material belonging to the cosmetic, food, household, pharmaceutical or parapharmaceutical fields.
  • a tube head includes a base configured to be mounted on a tube skirt and a pivoting lid attached to the base by means of a hinge.
  • a head provides the assurance that the lid remains secured to the base and therefore to the tube unlike a conventional dispensing head provided with a removable cap which, once detached, can be deposited and unintentionally abandoned at any location.
  • a head provides the consumer with the possibility of manipulating the tube with one hand. The user only has to give a simple thumb impulse to trigger the opening or closing of the lid relative to the base.
  • the opening of the lid relative to the base is designed to be carried out in a simple manner without much effort, it is necessary to provide at the tube head a tamper-evident system to prevent accidental opening of the lid before the first use and thus to guarantee to the consumer that the product has not been opened before this first use.
  • the prior art teaches a solution consisting of a circular ring or a tab which connects the lid to the base by means of breakable bridges.
  • the tamper-evident system can also take the form of a tab formed on the lid and intended to be inserted into an opening in the base, the tab being connected to the lid by at least one breakable bridge.
  • the document WO 2009112752 A1 shows a capping device comprising a base secured around the neck and a cap carried by the base in a movable manner between closed and open positions.
  • the invention proposes, on the one hand, a breakable strand, at least one of the two longitudinal ends of which is permanently connected to a first portion of the cap.
  • the breakable bridge(s) are intended to be broken when the service capsule is first opened, thus allowing the lid to be released from the base.
  • a tamper-evident system formed from a tab the latter constitutes, after breaking of breakable bridges, waste intended for disposal.
  • the tab potentially becomes a source of environmental pollution.
  • the tab leaves room for an unsightly opening on the tube head.
  • the tamper-evident system is formed from a circular ring, the latter remains in position on the tube head. However, the ring is subsequently unusable and remains perceived as a bulky and unsightly element.
  • the tamper-evident system is formed from at least one tab of the cover in cooperation with an opening in the base: after breaking of the breakable bridges, the tab remains blocked in the opening thus giving an unsightly appearance while being unusable.
  • the invention proposes a head for manufacturing a flexible tube intended to contain a liquid or pasty product, said head having a reduced height relative to its diameter and comprising a base configured to be fixed on a skirt of a flexible tube and a cover pivotally mounted on the base between an open position and a closed position, the head comprising at least one tamper-evident system having at least two tabs projecting from the cover, the tabs being connected to each other by at least one continuous breakable bridge, the at least one breakable bridge is designed so that when the cover is first closed the tabs cooperate with a pin on the base without breaking the breakable bridge and that when the cover is first opened the breakable bridge is broken, the tabs and the breakable bridge form around the opening a concave internal face and a substantially rectilinear internal face, the concave internal face being intended to be positioned opposite an upper convex face of the pin, the rectilinear internal face being intended to be positioned opposite a horizontal flat face of the pawn.
  • discontinuous is meant that the bridge extends from one end of a first leg to one end of a second leg without the presence of an intermediate third element.
  • breakable is meant that the bridge can be broken by a minimal force unlike the legs which cannot be broken or detached from the cover by this minimal force. In other words, the term “breakable” relative to the bridge is introduced in opposition to the non-breakable character of the legs and the permanent character of the connection between the legs and the cover.
  • the invention makes it possible to maintain the tabs attached to the cover and thus preserve, after breaking of the breakable bridge(s), the general appearance formed by the cover and the tabs. Furthermore, the invention opens up the possibility for the tabs to perform new functions after breaking of the breakable bridge(s). In particular, the tabs thus preserved in their integrity can serve as a means of holding the cover in the closed position.
  • a tube includes a tube head as described above and a flexible skirt.
  • the central axis Y is an axis passing through the middle of the tube head perpendicular to a plane containing a lower edge of the tube head.
  • the central axis Y is located substantially equidistant from two diametrically opposite points of said edge.
  • a direction orthogonal to the central axis Y is called a radial direction.
  • outer or external and “inner or internal” are used in reference to the radial direction, with an outer element being radially further from the central Y axis than an inner element.
  • the present invention relates to a head 1 for manufacturing a flexible tube 100 intended to contain a liquid or pasty product.
  • the head 1 comprises a base 2 and a cover 3.
  • the base 2 is configured to be mounted or to receive a skirt 50 of the tube 100.
  • the cover 3 is pivotally mounted on the base 2 using a hinge 4 (visible in figures 1 , 2 , 4 , 6 ).
  • the cover 3 can be moved between an open position and a closed position ( Figures 8 And 9 ). In the open position, the cover 3 is straightened relative to the base 2. In the closed position, the cover 3 is folded against the base 2 and hermetically seals the flexible tube.
  • the head 1 further comprises a tamper-evident system for preventing accidental opening of the lid 3 before the first use and thus guaranteeing to the consumer that the tube has not been opened before this first use.
  • the tamper-evident system comprises at least one means formed at the lid and at least one means formed at the base. The means of the tamper-evident system and their operation will appear in the description which follows.
  • the base 2 comprises an annular side wall 5 and an upper wall 6 which form an internal volume V (visible in particular at figures 5 , 7 , 9 ).
  • annular side wall 5 comprises an upper edge 51 closed by the upper wall 6.
  • the annular side wall 5 comprises a lower edge 52 forming a lower opening for access to the volume V.
  • the annular side wall 5 comprises an upper skirt 53 and a lower skirt 54.
  • the upper skirt 53 has a diameter smaller than a diameter of the lower skirt 54.
  • the upper skirt 53 is connected to the lower skirt 54 by a shoulder 55.
  • the upper skirt 53, the lower skirt 54 and the shoulder 55 give the side wall 5 of the base 2 a stepped profile.
  • the upper skirt 53 has a first portion 531, called the rear portion, of constant height.
  • the upper skirt 53 has a second portion 532, called the front portion.
  • the front portion 532 of the upper skirt 53 has a first region 532a of constant height, as well as two opposite regions 532b located on either side of the first region 532a. Only one region 532b of the front portion 532 is visible on the figure 4 .
  • the 532b regions each form a ramp, called a peripheral ramp.
  • the annular side wall 5 has a clearance 56 carrying a pin 7. Furthermore, the annular side wall 5 has a flat 57 which is extended by a concave lower lip 58. The clearance 56 and the flat 57 are formed at the level of the upper skirt 53 of the annular side wall 5, and more precisely at the level of the front portion 532 of the upper skirt 53.
  • the clearance 56 has a first face 56a which carries the pin 7, as well as a second face 56b perpendicular to the first face 56a.
  • the first face 56a called the vertical face, extends perpendicular to the upper wall 6 of the base 2.
  • the first face 56a is convex and has a curvature similar to a curvature of the upper skirt 53.
  • the second face 56b is concave and forms a U around the pin 7.
  • the second face 56b is called the concave face.
  • the pin 7 extends perpendicularly to the vertical face 56a of the clearance 56.
  • the pin 7 can be arranged inclined relative to the vertical face 56a of the clearance 56. Regardless of its orientation relative to the vertical face 56a of the clearance 56, the pin 7 advantageously has a beveled shape.
  • the pin 7 comprises two flat front faces 71, 72 which extend inclined relative to the vertical face 56a of the clearance 56.
  • the flat front faces 71, 72 give the pin 7 its beveled shape.
  • the front face 71, called the upper front face is connected to the vertical face 56a of the clearance 56 by a convex upper face 73 of the pin 7.
  • the front face 72 is connected to the vertical face 56a of the clearance 56 by a lower flat face 74 of the pin 7.
  • the upper front face 71 and the lower front face 72 form an obtuse angle between them.
  • the upper front face 71 and the lower front face 72 form between them an intersection line 75 corresponding to a distal edge of the pin 7.
  • the lower front face 72 forms a chamfer between the upper front face 71 and the lower flat face 74.
  • the pin 7 has a maximum depth P1 which is defined between the vertical face 56a of the clearance 56 and the intersection line 75 along a straight line perpendicular to the vertical face 56a of the clearance 56.
  • the maximum depth P1 of the pin 7 is less than or equal to a depth P2 of the clearance 56.
  • the depths P1 and P2 are shown in FIG. figure 10 .
  • the pin 7 has a height h1 which is defined between a vertex 73a of the convex upper face 73 and the flat lower face 74 of the pin 7 along a straight line perpendicular to the convex upper face 73 and/or to the flat lower face 74.
  • the term vertex is understood to mean the highest point of the convex upper face 73.
  • the pin 7 has an upper portion 7A and a lower portion 7B defined on either side of the intersection line 75.
  • the upper portion 7A of the pin 7 has a height h2 which is defined between the vertex 73a of the convex upper face 73 and the intersection line 75 of the pin 7 along a straight line perpendicular to the intersection line 75 and/or to the convex upper face 73.
  • the lower portion 7B of the pin 7 has a height h3 defined between the line intersection line 75 and the lower flat face 74 of the pin 7, following a straight line perpendicular to the lower flat face 74 and/or to the intersection line 75.
  • the upper wall 6 of the base 2 comprises a first plate, called the upper plate 61, and a second plate, called the lower plate 62.
  • the upper plate 61 and the lower plate 62 are connected by a vertical transverse wall 63 (visible in the figures 1 And 2 ).
  • the vertical transverse wall 63 extends along a diameter of the upper wall 6.
  • the vertical transverse wall 63 thus divides the upper wall 6 into two half-discs corresponding respectively to the upper plate 61 and the lower plate 62.
  • the vertical wall 63 is eccentric relative to the central axis Y of the tube head 1. This results in an unequal distribution between the upper plate 61 and the lower plate 62.
  • the high plate 61 is adjacent to the rear portion 531 of the upper skirt 53.
  • the low plate 62 is adjacent to the front portion 532 of the upper skirt 53.
  • the high plate 61 has an external face 61a.
  • the external face 61a is opposite an internal face 61b illustrated in the figure 7 .
  • the high plate 61 has an edge which comprises a curvilinear portion 61c and a rectilinear portion 61d.
  • the low plate 62 has an external face 62a which is provided with two ramps 64 each formed at an angle between the low plate 62 and the vertical transverse wall 63.
  • the ramps 64 of the low plate 62 are adjacent to the peripheral ramps 532b of the upper skirt 53.
  • the low plate 62 has a distribution orifice 65 which is extended by a protrusion 66.
  • the protrusion 66 extends into the volume V of the tube head 1. Furthermore, the protrusion 66 is formed on an internal face 62b of the low plate 62.
  • the internal face (respectively external face) is understood to mean the face oriented towards the internal volume V (respectively the face opposite the volume V).
  • the protrusion 66 makes it possible to orient the tube head 1 in particular with respect to a decoration and/or a longitudinal weld of a tube skirt during the manufacture of the tube.
  • the skirt 50 can be fixed in an appropriate position.
  • the protrusion 66 thus forms a means of positioning the tube head 1.
  • the protrusion 66 has a portion 67, called a projecting portion, which projects from the volume V.
  • the projecting portion 67 cooperates directly with the tooling of the tube production line and not with a component of the tube as is the case in the state of the art.
  • the projecting portion 67 is visible in particular at figure 5 .
  • the protrusion 66 has an upper proximal end 66a formed by the dispensing orifice 65 and a lower distal end 66b located at the level of the projecting portion 67.
  • the proximal end 66a of the protrusion 66 has the shape of a cylinder.
  • Such a shape has the advantage of being particularly strong. However, this shape limits access to the dispensing orifice 65 for the product contained in the tube equipped with the head 1.
  • at least part of the protrusion 66 has the shape of a half-cylinder. This half-cylinder shape makes it possible both to obtain a sufficiently strong structure and to facilitate access to the orifice 65 for the product contained in the tube equipped with the head 1.
  • the proportion of the protrusion 66 having the shape of a cylinder can vary depending on the dimensions of the head. In the illustrated configuration, a large proportion of the protrusion 66 has the shape of a half-cylinder, and not just the projecting portion 67. In a configuration not shown, the entire protrusion 66 has the shape of a half-cylinder.
  • the projecting portion 67 has a height h4 defined between a horizontal plane containing the lower edge 52 of the base 2 and the lower end 66b of the protrusion 66 along a straight line perpendicular to said plane.
  • the height h4 of the projecting portion 67 is between 1.5 and 6 mm.
  • the height h4 of the projecting portion 67 is between 2 and 4mm.
  • the height h4 of the projecting portion 67 is between 2.5 and 3.5mm. Such a height h4 allows reliable positioning of the head 1 according to the invention.
  • the distribution orifice 65 is eccentric, that is to say it is offset radially relative to the central axis Y of the tube head 1.
  • the base 2 has in the volume V at least one internal rib 9.
  • the base 2 comprises two ribs 9a, 9b which extend radially relative to the central axis Y.
  • the ribs 9a, 9b are formed in a diametrically opposed manner substantially close to the vertical transverse wall 63.
  • the cover 3 comprises a bottom 31 as well as a peripheral wall 32 which extends perpendicular to the bottom 31.
  • the bottom 31 of the cover 3 has an external face 31a (visible in the figure 6 ) as well as an internal face 31b which is provided with a lug 33.
  • the lug 33 makes it possible to close the dispensing orifice 65 in a sealed manner when the cover 3 is in the closed position.
  • the lug 33 has a tubular shape with an external diameter substantially equal to an internal diameter of the dispensing orifice 65.
  • the peripheral wall 32 forms an opening 34 located at the hinge 4.
  • the bottom 31 of the cover 3 is in the form of a half-disc.
  • the bottom 31 of the cover 3 has an edge 31c comprising a curvilinear portion 35 and a rectilinear portion 36.
  • the curvilinear portion 35 has a rounded top 35a located opposite the hinge 4.
  • the rectilinear portion 36 is connected to the hinge 4.
  • the peripheral wall 32 of the cover 3 extends along the entire curvilinear portion 35 of the edge 31c and over at least a fraction of the rectilinear portion 36 of the edge 31c. More specifically, the peripheral wall 32 of the cover 3 extends over two fractions 36a, 36b of the rectilinear portion 36 of the edge 31b. A remaining fraction 36c of the rectilinear portion 36 of the edge 31c is connected to the hinge 4.
  • the cover 3 occupies substantially half of the surface of the upper wall 6, in a variant not illustrated, the cover 3 is eccentric relative to the central axis Y of the head 1 and occupies less than half of the surface of the upper wall 6. This makes it possible in particular to reduce the size of the cover 3 and thus to limit the quantity of material necessary for the manufacture of the head 1.
  • the peripheral wall 32 of the cover 3 has a height h5 which has different profiles along the edge 31c of the bottom 31 of the cover 3.
  • the peripheral wall 32 of the cover 3 has two opposite regions 32a located on either side of the hinge 4 and in which the height h5 has an increasing shape before becoming constant.
  • the peripheral wall 32 of the cover 3 has two other regions 32b which each extend from an adjacent region 32a. In each of the regions 32b, the height h5 increases starting from the adjacent region 32a. Between the regions 32b of the peripheral wall 32 extends a central region 32c in which the height h5 is constant.
  • the regions 32a extend respectively along the fraction 36a and the fraction 36b of the straight portion 36 of the edge 31c.
  • the fractions 36a, 36b are visible on the figure 6 .
  • the regions 32b of the peripheral wall 32 extend along the ends of the curvilinear portion 35 of the edge 31c of the bottom 31 (visible in the figure 6 ).
  • the regions 32b of the peripheral wall 32 of the cover 3 are intended to bear on the peripheral ramps 532b formed at the level of the upper skirt 53 of the base 2 when the cover 3 is in the closed position.
  • the peripheral wall 32 of the cover 3 has a flat 37 which extends perpendicular to the bottom 31 of said cover 3.
  • the flat 37 is located opposite the opening 34 formed by the peripheral wall 32 of the cover 3. More specifically, the flat 37 is located at the level of the front region 32c of the peripheral wall 32 of the cover 3.
  • the flat 37 forms with the bottom 31 of the cover 3 a tab 38 intended to facilitate gripping of said cover 3 by a finger of a user.
  • the tab 38 corresponds to the rounded top 35a of the curvilinear portion 35 of the bottom 31 of the cover 3.
  • the peripheral wall 32 of the cover 3 has a lower edge 39 which is provided with a ring 8. More precisely, the ring 8 is formed at the front region 32c of the peripheral wall 32. The ring 8 is intended to cooperate with the pin 7 when the cover 3 is in the closed position, in particular before a first use of the tube. Furthermore, the ring 8 is configured to be housed in the clearance 56 formed on the upper skirt 53 of the base 2.
  • the ring 8 comprises two legs 81 which are formed facing each other as well as at least one breakable bridge 82 which connects the legs 81.
  • the legs 81 and the breakable bridge 82 thus define an opening 83 intended to be positioned around the pin 7.
  • the term “internal” means a position close to (respectively far from) the opening 83 of the ring 8.
  • front means a position facing the outside of the cover 3 (respectively towards the inside of the cover 3).
  • the legs 81 extend from the lower edge 39 of the peripheral wall 32 perpendicular to the bottom 31.
  • the ring 8 is perpendicular to the bottom 31 of the cover 3. In other words, the ring 8 extends in the extension of the peripheral wall 32 of the cover 3.
  • Each leg 81 of the ring 8 has a proximal edge 84a which is connected to the peripheral wall 32 of the cover 3, and more precisely to the lower edge 39 of said peripheral wall 32 of the cover 3. Furthermore, each leg 81 has a distal edge 84b which is connected to the breakable bridge 82. More specifically, the distal edge 84b of each leg 81 is connected to one end of the breakable bridge 82.
  • each leg 81 of the ring 8 comprises a front face 81a and a rear face 81b.
  • the rear face 81b is visible at figure 2 .
  • the front face 81a and the rear face 81b of each leg 81 are substantially curved and define a thickness e1 of said leg 81.
  • the thickness e1 is substantially equal to a thickness of the peripheral wall 32 of the cover 3.
  • each leg 81 of the ring 8 comprises a concave inner face 81c and a convex outer face 81d.
  • the front face 81a and the rear face 81b of each leg 81 extend between the concave inner face 81c and the convex outer face 81d of said leg 81.
  • each leg 81 of the ring 8 defines a width !1 which is variable between the proximal edge 84a and the distal edge 84b of said leg 81. More specifically, the width !1 of each leg 81 decreases from the proximal edge 84a to the distal edge 84b. In other words, the width !1 of each leg 81 has a maximum value at the proximal edge 84a of said leg 81 and a minimum value at the distal edge 84b of said leg 81.
  • each tab 81 has a crescent shape. “Width” means a measurement taken in a direction parallel to the lower edge 39 of the peripheral wall 32 of the cover 3.
  • the breakable bridge 82 is in the form of a thin strip of material.
  • the term “thin” means that the strip of material has a thickness e2 that is small relative to a width l3 and a depth P3 of said strip of material.
  • the thickness e2 is defined between an inner face and an outer face of the thin strip 82.
  • the width l3 of the thin strip corresponds to a measurement taken between the distal portions 84b of the tabs 81 in a direction parallel to the lower edge 39 of the peripheral wall 32 of the cover 3.
  • the depth P3 is defined between a front face and a rear face of the thin strip 82.
  • the thickness e2 of the thin strip 82 is also small compared to the rest of the ring 8 and in particular compared to the tabs 81 so that the breaking of said thin strip 82 is facilitated during a first opening of the cover 3.
  • the depth P3 of the thin strip 82 is variable.
  • the depth P3 of the thin strip 82 has a maximum value at the ends of said thin strip 82, that is to say at the junctions between the thin strip 82 and the tabs 81.
  • the depth P3 of the thin strip 82 has a minimum value towards a middle 82a of said thin strip 82.
  • the thin strip 82 forms in its middle 82a a constriction corresponding to a minimum value of the depth P3.
  • This constriction constitutes, during a first opening of the cover 3, a stress concentration zone allowing a localized breaking of the thin strip 82.
  • the legs 81 and the breakable bridge 82 together form a U-shaped external surface. More specifically, this U-shaped external surface is formed by the respective convex external faces 81d of the legs 81 and the external face of the breakable bridge 82. Furthermore, the respective concave internal faces 81c of the legs 81 and the internal face of the breakable bridge 82 give the opening 83 of the ring 8 a concave profile at an upper portion of said opening and a substantially rectilinear profile at a lower portion of said opening 83.
  • the opening 83 thus defined has a width l2 which extends between the respective concave internal faces 81c of the legs 81, and in particular between two planes tangent respectively to said faces 81c.
  • the opening 83 also has a height h6 which is defined between the breakable bridge 82 and a line 85 joining the legs 81. It should be noted that the line 85 joining the legs 81 extends perpendicular to the respective front faces 81a of the legs 81. In the example illustrated in figure 12 , the junction line 85 is represented by a simple arrow pointing to its position.
  • the height h6 defined by the opening 83 of the ring 8 is greater than the depth P1 and the height h1 of the pin 7.
  • the width l2 of the opening 83 is slightly greater than a width of the pin 7. This makes it possible in particular to facilitate the installation of the ring 8 around the pin 7, in particular during a first closing of the cover 3 on the base 2.
  • the cover 3 comprises at least one rib 31d formed in the vicinity of said ring 8.
  • the rib(s) 31d are formed at an angle between the bottom 31 and the peripheral wall 32 of the cover 3. More precisely, the rib(s) 31d are formed between an inner face 31b of the bottom 31 and an inner face 32d of the peripheral wall 32.
  • the cover 3 comprises two ribs 31d which are formed at the front region 32c of the peripheral wall 32 of the cover 3.
  • Such an arrangement of the ribs 31d makes it possible in particular to preserve the shape memory of the ring 8 in the face of the mechanical stresses induced by the action of the pin 7 on said ring 8.
  • the action of the pin 7 on the ring 8 is understood to mean the resistance that the pin 7 opposes to the ring 8 during installation or removal. of ring 8 around pawn 7.
  • the peripheral wall 32 cooperates with the upper skirt 53 of the base 2 to give the head 1 a generally cylindrical shape and a certain continuity of design between the base 2 and the cover 3.
  • the peripheral wall 32 of the cover 3 rests on the front portion 532 of the upper skirt 53 of the base 2.
  • the zones 32b of the peripheral wall 32 of the cover 3 rest on the peripheral ramps 532b of the upper skirt 53 of the base 2.
  • the flat 37 of the peripheral wall 32 of the cover 3 aligns with the flat 57 of the upper skirt 53 of the base 2.
  • the flat 57 of the upper skirt 53 of the base 2 as well as the flat 37 of the peripheral wall 32 of the cover 3 form a housing of greater height intended to facilitate access and handling of tab 38.
  • tab 38 formed at the cover 3 is positioned opposite the lower lip 58 formed at the base 2.
  • the bottom 31 of the cover 3 extends in a plane of the upper plate 61 of the base 2.
  • the external face 31a of the bottom 31 of the cover 3 aligns with the external face 61a of the upper plate 61 of the base 2.
  • the bottom 31 of the cover forms with the lower plate 62 a housing 69 illustrated in FIG. figure 9 .
  • the rectilinear portion 36 of the bottom 31 forms with the rectilinear edge 61d of the upper plate 61 a clearance intended to facilitate the pivoting of the cover 3 relative to the base 2.
  • the pin 7 emerges from the opening 83 of the ring 8.
  • the U-shaped external face of the ring 8 is positioned opposite the concave bottom 56b of the clearance 56. This external face is at a distance from the concave bottom 56b.
  • the concave internal face of the ring 8 is positioned opposite the convex upper face 73 of the pin 7.
  • the flat lower internal face of the ring 8 is positioned opposite the flat lower face 74 of the pin 7.
  • the rear face of the ring 8 is positioned opposite the vertical face 56a of the clearance 56.
  • the head 1 in the closed position of the cover 3, has a height h7 which is between 5 and 20 mm.
  • the height h7 of the tube head 1 is between 8 and 12 mm.
  • the height h7 of the tube head 1 is between 9.3 and 10.3 mm.
  • the height h7 of the head 1 is defined between the external face 61a of the upper plate 61 and the lower edge 52 of the annular side wall 5.
  • the height h7 of the head is relatively small, in particular compared to a diameter d of the head 1, which is between 30 and 50 mm, and advantageously still between 35 and 45 mm.
  • a height h7 gives the head 1 a substantially flat design making it possible to limit the quantity of material.
  • the ratio d/h7 is between 2 and 6.
  • the ratio d/h7 is between 3 and 5.
  • a ratio d/h7 as described above characterizes the substantially flat design of the head 1.
  • the h7/h4 ratio is between 1.5 and 5.5.
  • the h7/h4 ratio is between 2.5 and 4.5, in particular between 3 and 4.
  • the tube head 1 is made from a plastic material.
  • the head 1 is obtained in a single piece, for example by a molding process by injection.
  • the manufacture of the tube head is designed so that at the end of this operation, the cover 3 is in the open position relative to the base 2 as illustrated in particular in Figures 1 to 7
  • the principle of a cover 3 formed in the open position relative to the base 2 allows in particular the production of the pin 7 on the base 2 and the production of the ring 8 on the cover 3.
  • the ring 8 cooperates with the pin 7.
  • the tabs 81 and the breakable bridge 82 of the ring 8 form first means of the tamper-evident system.
  • the pin 7 forms a second means of the tamper-evident system.
  • the breakable bridge 82 also serves as a witness to know whether the tube 100 has already been opened or not. Its connection to the tabs 81 certifies that the cover 3 has not yet been opened.
  • the ring 8 of the cover 3 is threaded around the pin 7 of the base 2 (see figure 13 - a ).
  • the beveled faces 71, 72 of the pin 7 facilitate this maneuver during which only the concave upper portion of the opening 83 of the ring 8 is in contact with the pin 7.
  • the concave upper portion of the opening 83 of the ring 8 delimits a zone of said ring 8 which is more resistant compared to a zone of said ring 8 which is less resistant and which comprises the breakable bridge 82.
  • the breakable bridge 82 Since the breakable bridge 82 is less strong than the pin 7, the latter cannot be deformed by the former. In addition, due to the horizontal plane configuration of the lower face 74 of the pin 7, and due to a judiciously chosen ratio P1/P3 between the depth P1 of the pin 7 and the depth P3 of the breakable bridge 82, the ring 8 cannot be completely unthreaded from the pin 7.
  • the depth P1 of the pin 7 is at least twice the depth P3 of the breakable bridge 82.
  • the breakable bridge 82 is broken with a conventional gesture of opening the cover 3.
  • the gesture of opening the cover 3 is an upward push applied to the tab 38.
  • the breakage of the breakable bridge 82 is carried out without loss of material.
  • the breakage of the breakable bridge 82 is such that the structure and shape of the legs 81 forming the ring 8 are generally preserved.
  • the respective distal portions of the legs 81 retain an arched profile.
  • This advantage is obtained in particular by choosing a leg width that decreases from the proximal edge to the distal edge of said leg.
  • This advantage is also obtained by the reduced thickness e2 of the breakable bridge 82 and by the constriction provided according to the depth P3 of the breakable bridge 82, that is to say in a direction perpendicular to the thickness e2 of the breakable bridge 12.
  • the respective concave faces 81c of the legs 81 and the branches of the breakable bridge 82 thus broken form an open loop (see figure 15 ).
  • an element of the tamper-evident system in this case the ring 8, provides an aesthetic function after breaking the breakable bridge 82.
  • the distal portions of the legs 81 form, thanks to their arched profile, flexible hooks which can cooperate with the pin 7 in order to ensure that the cover 3 is held in the closed position on the base 2 during a subsequent closing of the cover 3 (see figure 13 -c ).
  • the flexible hooks deform angularly upon contact with the pin 7 and then return to their initial shape once they are in place around the pin 7.
  • the tamper-evident system retains, after the breakable bridge has broken, a function of holding the lid in the closed position, whereas in the prior art the elements of the tamper-evident system are either intended to be discarded or rendered unusable after the breakable bridge has broken.
  • the solution for holding the lid 3 relative to the base 2 as implemented by the flexible hooks and the pin 7 complements or replaces a holding solution using the lug 33 and the dispensing orifice 65.
  • the user deploys a lesser force than that required to break the breakable bridge 82 during the first opening of the cover 3.
  • the drop in the opening force of the cover 3 relative to the base 2 indicates to the user that a first opening of the cover 3 has already taken place.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Tubes (AREA)

Claims (12)

  1. Kopf (1) zur Herstellung einer flexiblen Tube, die dazu bestimmt ist, ein flüssiges oder dickflüssiges Produkt zu enthalten, die eine geringere Höhe (h7) in Bezug zu ihrem Durchmesser (d) aufweist und eine Basis (2) umfasst, die konfiguriert ist, um an einer Schürze der Tube fixiert zu werden, und einen Deckel (3), der zwischen einer geöffneten Position und einer geschlossenen Position schwenkbar an der Basis (2) montiert ist,
    wobei der Kopf (1) mindestens ein Sicherheitssystem umfasst, das mindestens zwei Laschen (81) aufweist, die von dem Deckel (3) überstehen, wobei die Laschen (81) durch mindestens eine durchgehende trennbare Brücke (82) miteinander verbunden sind,
    wobei die mindestens eine trennbare Brücke (82) derart gestaltet ist, dass beim ersten Schließen des Deckels (3) die Laschen (81) mit einem Stift (7) der Basis (2) ohne Bruch der trennbaren Brücke (82) zusammenwirken, und dass beim ersten Öffnen des Deckels (3) die trennbare Brücke (82) gebrochen wird,
    dadurch gekennzeichnet, dass die Laschen (81) und die trennbare Brücke (82) um die Öffnung (83) herum eine konkave Innenfläche (81c) und eine im Wesentlichen geradlinige Innenfläche bilden, wobei die konkave Innenfläche (81c) dazu bestimmt ist, gegenüber einer oberen konvexen Fläche (73) des Stiftes (7) positioniert zu werden, wobei die geradlinige Innenfläche dazu bestimmt ist, gegenüber einer horizontalen ebenen Fläche (74) des Stiftes (7) positioniert zu werden.
  2. Kopf (1) nach dem vorstehenden Anspruch, wobei der Stift (7) derart abgekantet ist, um ein Anbringen und ein Festhalten der Laschen (81) um den Stift (7) herum zu erleichtern.
  3. Kopf (1) nach dem vorstehenden Anspruch, wobei sich der Stift (7) hervorstehend aus einer Seitenwand (5) der Basis (2) heraus in einer orthogonalen Richtung oder einer im Wesentlichen in Bezug auf die Seitenwand (5) geneigte Richtung erstreckt.
  4. Kopf (1) nach dem vorstehenden Anspruch, wobei der Stift (12) in einer Ausnehmung gebildet ist, die in der Seitenwand (5) der Basis (2) ausgeführt (56) ist, wobei die Laschen (81) dazu bestimmt sind, in der Ausnehmung (56) aufgenommen zu werden, wenn der Deckel (3) in geschlossener Position ist.
  5. Kopf (1) nach einem der vorstehenden Ansprüche, wobei sich die Laschen (81) aus einem unteren Rand (39) einer Seitenwand (32) des Deckels (3) in einer Ebene der Seitenwand (32) erstrecken, wobei die Laschen (81) und die mindestens eine trennbare Brücke (82) eine Öffnung (83) bilden, die dazu bestimmt ist, um den Stift (7) herum positioniert zu werden.
  6. Kopf (1) nach einem der vorstehenden Ansprüche, wobei die Öffnung (83), die durch die Laschen (81) und die mindestens eine trennbare Brücke (82) gebildet wird, eine Höhe (h6) aufweist, die größer als eine Höhe (h1) und eine Tiefe (P1) des Stifts (7) ist, um beim Anbringen der Laschen (81) um den Stift (7) herum, jeden Kontakt zwischen der trennbaren Brücke (82) und dem Stift (7) zu verhindern.
  7. Kopf (1) nach dem vorstehenden Anspruch, wobei der Stift (7) aus der Öffnung (83) mündet, die durch die Laschen (81) und die trennbare Brücke (82) gebildet wird, wenn der Deckel (3) in geschlossener Position ist.
  8. Kopf (1) nach einem der vorstehenden Ansprüche, wobei die mindestens eine trennbare Brücke (82) feiner ist als die Laschen (81).
  9. Kopf (1) nach einem der vorstehenden Ansprüche, wobei die mindestens eine trennbare Brücke (82) konfiguriert ist, um beim ersten Öffnen des Deckels (3) ohne Materialverlust gebrochen zu werden.
  10. Kopf (1) nach dem vorstehenden Anspruch, wobei sich die trennbare Brücke (82), wenn der Deckel (3) in geschlossener Position ist, auf Abstand zu einem konkaven Boden (56b) der Ausnehmung (56) befindet, gebildet ist, die in der Seitenwand (5) der Basis (2) ausgeführt ist.
  11. Tube (100), die einen Kopf (1) einer Tube nach einem der vorstehenden Ansprüche, und eine flexible Schürze (50) umfasst.
  12. Tube (100) nach Anspruch 11, wobei die Schürze (50) direkt am Kopf (1) der Tube fixiert ist.
EP22201530.7A 2021-10-14 2022-10-14 Kopf fur eines flexiblen rohrs und rohr mit einem solchen kopf Active EP4166471B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2110943A FR3128212A1 (fr) 2021-10-14 2021-10-14 Tête pour la fabrication d’un tube souple et tube comprenant une telle tête

Publications (2)

Publication Number Publication Date
EP4166471A1 EP4166471A1 (de) 2023-04-19
EP4166471B1 true EP4166471B1 (de) 2024-11-06

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ID=80735802

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Application Number Title Priority Date Filing Date
EP22201530.7A Active EP4166471B1 (de) 2021-10-14 2022-10-14 Kopf fur eines flexiblen rohrs und rohr mit einem solchen kopf

Country Status (5)

Country Link
US (1) US20230122129A1 (de)
EP (1) EP4166471B1 (de)
ES (1) ES3006941T3 (de)
FR (1) FR3128212A1 (de)
MX (1) MX2022012907A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD1054855S1 (en) * 2021-11-12 2024-12-24 Albea Services Seal cap
USD1054856S1 (en) * 2021-11-12 2024-12-24 Albea Services Seal cap

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4487324A (en) * 1984-02-08 1984-12-11 Seaquist Closures Tamper-evident dispensing closure
CH683417A5 (de) * 1991-06-21 1994-03-15 Createchnic Ag Schnappscharnierverschluss mit Garantieband.
US5386918A (en) * 1993-04-22 1995-02-07 Colgate-Palmolive Co. Closure with tamper evidence structure
US6269986B1 (en) * 2000-06-20 2001-08-07 Seaquist Closures Foreign, Inc. Dispensing closure with tamper evident lid panel
US6415965B2 (en) * 2000-07-26 2002-07-09 Paradigm Packinging, Inc. Product dispensing system and method
WO2008060533A2 (en) * 2006-11-14 2008-05-22 Alcoa Closure Systems International, Inc. Tamper-indicating dispensing closure
FR2927887B1 (fr) * 2008-02-26 2010-03-19 Tetra Laval Holdings & Finance Dispositif de bouchage d'un col de recipient.
DE202009000138U1 (de) * 2009-01-05 2009-03-19 Weener Plastik Ag Klappverschluss
FR2976921B1 (fr) * 2011-06-24 2013-07-12 Tetra Laval Holdings & Finance Dispositif de bouchage d'un col de recipient
FR2996534B1 (fr) * 2012-10-10 2015-04-17 Eskiss Packaging Capsule pour flacon
ES2429942B1 (es) * 2013-07-05 2014-09-10 José Francisco González Sánchez Precinto higiénico para envases
CH713025A1 (de) * 2016-10-12 2018-04-13 Fostag Formenbau Ag Kunststoffverschluss mit einem Unversehrtheitsgarantieelement.
ES1204636Y (es) * 2017-12-29 2018-04-30 Sanchez Jose Francisco Gonzalez Protector de envases

Also Published As

Publication number Publication date
MX2022012907A (es) 2023-04-17
EP4166471A1 (de) 2023-04-19
US20230122129A1 (en) 2023-04-20
FR3128212A1 (fr) 2023-04-21
ES3006941T3 (en) 2025-03-19

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