EP1050232B1 - Distributeur de bâton rouge à lèvre à enveloppe extérieure fonctionelle - Google Patents

Distributeur de bâton rouge à lèvre à enveloppe extérieure fonctionelle Download PDF

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Publication number
EP1050232B1
EP1050232B1 EP00108919A EP00108919A EP1050232B1 EP 1050232 B1 EP1050232 B1 EP 1050232B1 EP 00108919 A EP00108919 A EP 00108919A EP 00108919 A EP00108919 A EP 00108919A EP 1050232 B1 EP1050232 B1 EP 1050232B1
Authority
EP
European Patent Office
Prior art keywords
shell
elevator
accordance
wall
cosmetic dispenser
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.)
Expired - Lifetime
Application number
EP00108919A
Other languages
German (de)
English (en)
Other versions
EP1050232A2 (fr
EP1050232A3 (fr
Inventor
Thomas F. Holloway
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.)
Crown Packaging Technology Inc
Original Assignee
Crown Cork and Seal Technologies Corp
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
Priority claimed from US09/307,297 external-priority patent/US6227733B1/en
Priority claimed from US09/307,516 external-priority patent/US6231254B1/en
Application filed by Crown Cork and Seal Technologies Corp filed Critical Crown Cork and Seal Technologies Corp
Publication of EP1050232A2 publication Critical patent/EP1050232A2/fr
Publication of EP1050232A3 publication Critical patent/EP1050232A3/fr
Application granted granted Critical
Publication of EP1050232B1 publication Critical patent/EP1050232B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/02—Casings wherein movement of the lipstick or like solid is a sliding movement
    • A45D40/04—Casings wherein movement of the lipstick or like solid is a sliding movement effected by a screw

Definitions

  • the present invention relates to the field of lipstick and cosmetic dispensers having a propelling and retracting mechanism for a cosmetic stick contained within the dispenser, as disclosed in US 5 879 093 A.
  • These slim dispenser designs typically include an elevator cup that has a threaded rod extending downwardly into and engaging a threaded base element, and which can be operated with a twisting action to extend the cosmetic stick from a nose member.
  • an elevator cup that has a threaded rod extending downwardly into and engaging a threaded base element, and which can be operated with a twisting action to extend the cosmetic stick from a nose member.
  • One such design is shown, for example, in my U.S. Patent No. 5,018,893.
  • a disadvantage of these designs is that in order to load the dispenser with a cosmetic stick, the cosmetic stick must be formed and carefully loaded into the dispenser or cast in place in the tubular nose of the dispenser.
  • the elevators of these dispensers cannot be bottom filled with a molten cosmetic product which is allowed to cool, in place, in a mold, so that the cosmetic is molded in place onto an elevator cup.
  • bottom filling of an elevator cup of a cosmetic dispenser is considered a preferred method of loading the cosmetic stick into a lipstick dispenser because it simplifies the cosmetic loading operation and reduces product loss arising from breakage of the cosmetic stick on loading.
  • Such bottom filling methods are used with conventional lipstick dispensers where the cup size is on the order of 12,7 mm (.50 inches) in diameter.
  • bottom filling methods are not generally usable in slim dispenser designs because they will use a small diameter solid threaded rod element engaged in a cam or nut element to drive the elevator.
  • the conventional dispensers use a combination of an innerbody with straight tracks working in combination with helical tracks on a cam sleeve to move an elevator cup by engagement with the elevator cup lugs.
  • the "feel" of the existing slim dispenser designs is sometimes slack; desirably, a cosmetic dispenser should have a sufficient amount of swivel drag to give the dispenser a feel that is smooth and luxurious.
  • a cosmetic dispenser in accordance with one embodiment of the invention, comprising a tubular A-shell, an elevator and a base.
  • the A-shell is preferably a decorative aluminum A-shell, but has a plurality of longitudinal splines provided with the interior wall of the A-shell, either as ribs formed integrally with the wall, or as part of a plastic insert. Preferably, there are from four to eight of such splines.
  • the elevator has an elevator cup at an upper end and an elevator stem extending down from the cup.
  • the elevator stem is preferably hollow, and open at its lower end.
  • the elevator cup is fitted inside the A-shell and has a plurality of notches around its outer wall.
  • the longitudinal splines fit into the notches to keep the elevator cup in a fixed orientation relative to the A-shell.
  • the elevator cup notches are formed in an annular bead extending around the outer wall of the elevator cup; for ease of manufacture, the bead is deformable, and the elevator cup notches are made by the pressure of the A-shell splines on the bead when the cosmetic dispenser is operated.
  • the elevator cup notches are molded or otherwise formed in the outer wall of the elevator cup.
  • the elevator stem has an exterior wall with a circular cross-section and a first feature in the form of lugs extending radially outwardly therefrom which fit into and follow a second feature in the form of an internal helically threaded track of the base.
  • the base is rotatably attached to the A-shell, preferably by an annular bead extending around a perimeter of the interior wall of the A-shell in snap fitting engagement with a channel extending around a perimeter of an outer wall of the base.
  • the cosmetic dispenser is operable to cause the elevator cup to travel longitudinally in the A-shell by rotation of the base element relative to the A-shell, because the rotation causes the lugs to track upwardly in the helically threaded track, with the A-shell splines received in the elevator cup notches maintaining the elevator cup in a fixed orientation relative to the A-shell.
  • the elevator stem has a first feature in the form of a screw thread extending radially outwardly therefrom which interacts with a second feature in the form of mating internal screw threading in the base. Accordingly, rotation of the base causes the mating screw threads to propel the elevator upwardly or retract it downwardly.
  • a desired swivel torque is provided by a plurality of separate tabs formed with and extending upwardly from the base into frictional contact with the interior wall of the A-shell to generate friction between the base and the A-shell upon relative rotation of the base and A-shell.
  • the invention reduces the number of parts used in a dispenser by eliminating the innerbody found in most conventional lipstick dispensers. It provides a slender appearance and an airtight option. It provides a desirable feel due to the friction of plastic friction tabs against a metal A-shell.
  • Dispenser 20 comprises an A-shell 30, an elevator 50, and a base 70.
  • A-shell 30 is a decorative tubular part, preferably formed of metal, most preferably, aluminum.
  • A-shell 30 has an interior wall 32 and an exterior wall 34.
  • a plurality of longitudinal splines 36 are provided on the interior wall 32 of A-shell 30. Preferably, there are from four to eight such longitudinal splines 36.
  • the splines 36 are integrally formed with the A-shell 30. This can be manufactured by cold forming the A-shell in an appropriate die.
  • A-shell 30 may be a smooth cylinder, and the splines 36 can be incorporated in a metal or plastic insert 38 that fits inside the A-shell 30.
  • Elevator 50 is preferably formed from polypropylene and has an elevator cup 52 at an upper end 54 thereof and an elevator stem 56 at a lower end 58 thereof.
  • the elevator cup 52 fits inside the A-shell 30.
  • Elevator cup 52 has a plurality of notches 60 around outer wall 62 of the cup 52. Notches 60 receive the longitudinal splines 36. The splines 36 received in the notches 60 operate to keep the cup 52 fixedly oriented relative to the A-shell 30.
  • the number of notches 60 is the same as the number of splines 36.
  • the notches 60 may be molded into the outer walls of the elevator cup 52.
  • notches 60 are formed in an annular bead 64 extending around the outer wall 62 of the elevator cup.
  • Elevator stem 56 has an exterior wall 65 with a circular cross-section and one or more lugs 66 extending radially outwardly from the wall 65.
  • stem 56 is hollow, so that the dispenser 20 may be bottom filled with a cosmetic product.
  • Base element 70 has an inner wall 72 with a circular cross-section and at least one, and preferably two internally helically threaded track sections 74. Helically threaded track sections 74 are engaged by the lugs 66 on elevator stem 56.
  • Base 70 is rotatably attached to A-shell 30.
  • Base 70 is attached to A-shell 30 by a folded over wall section 40 forming an annular bead extending around a perimeter of the interior wall 32 of the A-shell 30 in snap fitting engagement with a channel 76 extending around the perimeter of the outer wall 78 of the base 70.
  • the cosmetic dispenser 20 is operable to cause the elevator cup 52 to travel longitudinally in the A-shell 30 by rotation of the base element 70 relative to the A-shell 30, because the rotation causes the lugs 66 to track upwardly in the helically threaded track sections 74. While the elevator moves upwardly, the A-shell splines 36 received in the elevator cup notches 60 maintain the elevator cup 52 in a fixed orientation relative to the A-shell 30.
  • the bead 64 fits tightly against the inner wall 32 of the A-shell 30 to provide the necessary sealing fit that prevents leakage or escape of volatile components in the lipstick when the dispenser is closed with a cap and base.
  • a desirable swivel torque is provided by at least one, preferably two, or a plurality of separate tabs 80 formed with and extending upwardly from the base 70 into frictional contact with the interior wall 32 of the A-shell 30 to generate friction between the base 70 and the A-shell 30 upon relative rotation of the base 70 and A-shell 30.
  • the tabs, and typically, the entire base 70 should be formed from a suitable plastic that has low creep characteristic and a good lubricity.
  • the base is fabricated from Delrin®, a PTFE filled acetal manufactured by E.I. du Pont de Nemours and Company. As can be seen in FIG.
  • the tabs 80 are separated from each other and have an upwardly extending segment 82 and a radially extending segment 84.
  • friction tabs 80 are believed preferred, other friction elements may be used, as for example a continuous bead, which would provide a sealing fit between the components to preserve the product and prevent it from drying out.
  • a continuous bead could for example connect all the segments 84 to create one annular bead, with segments 82 maintained as separate segments.
  • segments 82 could be a continuous web instead of being segmented, just as segments 84 would be a continuous bead instead of being segmented.
  • base element 70 has an inner wall 72 with a circular cross-section and an internally threaded track section 174. Threaded track section 174 is engaged by the exterior screw threading 166 on elevator stem 56. Accordingly, the cosmetic dispenser 20 is operable to cause the elevator cup 52 to travel longitudinally in the A-shell 30 by rotation of the base element 70 relative to the A-shell 30, because the rotation causes the external screw threading 166 to track upwardly in the threaded section 174. As before, while the elevator moves upwardly, the A-shell splines 36 received in the elevator cup notches 60 maintain the elevator cup 52 in a fixed orientation relative to the A-shell 30.

Landscapes

  • Cosmetics (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Claims (11)

  1. Distributeur de produit cosmétique comprenant :
    une enveloppe extérieure tubulaire (30) comportant une paroi intérieure (32) et une paroi extérieure (34) ;
    un élévateur (50) comportant une coupelle d'élévateur (52) à une extrémité supérieure et une tige d'élévateur (56) à une extrémité inférieure, ladite coupelle d'élévateur étant ajustée à l'intérieur de ladite enveloppe extérieure, ladite tige d'élévateur comportant une paroi extérieure (65) à section transversale circulaire et un premier élément caractéristique (66, 166) disposé dessus ;
    un élément de base (70) comportant une paroi interne (72) avec une section transversale circulaire et un deuxième élément caractéristique (74, 174) sur elle, ledit premier élément caractéristique étant engagé avec ledit deuxième élément caractéristique, et ledit élément de base étant attaché avec possibilité de rotation à ladite enveloppe extérieure ; et
    un moyen (80) pour créer une friction entre ledit élément de base (70) et ladite enveloppe extérieure (30) lors d'une rotation relative de ladite base et de ladite enveloppe extérieure ;
       ledit distributeur de produit cosmétique étant adapté à amener ladite coupelle d'élévateur (52) à se déplacer longitudinalement dans ladite enveloppe extérieure (30) par rotation dudit élément de base (70) relativement à ladite enveloppe extérieure ;
       caractérisé en ce que
       l'enveloppe extérieure (30) comporte une pluralité de cannelures longitudinales (36) situées sur la paroi intérieure (32) de ladite enveloppe extérieure ; et
       la coupelle d'élévateur (52) comporte une pluralité d'encoches (60) autour de sa paroi externe pour recevoir lesdites cannelures longitudinales (36) ;
       dans lequel lors de la rotation à l'élément de base (70) par rapport à l'enveloppe extérieure, lesdites cannelures (36) d'enveloppe extérieure reçues dans lesdites encoches (60) de coupelle d'élévateur gardent la coupelle d'élévateur dans une orientation fixe par rapport à l'enveloppe extérieure.
  2. Distributeur de produit cosmétique selon la revendication 1, caractérisé en ce que lesdites encoches (60) de coupelle d'élévateur sont formées dans une nervure annulaire (64) s'étendant autour de ladite paroi externe de ladite coupelle d'élévateur.
  3. Distributeur de produit cosmétique selon la revendication 2, caractérisé en ce que ladite nervure est déformable, et lesdites encoches (60) de coupelle d'élévateur sont formées par lesdites cannelures (36) d'enveloppe extérieure lorsque ledit distributeur cosmétique est actionné.
  4. Distributeur de produit cosmétique selon la revendication 1, caractérisé en ce que lesdites encoches (60) de coupelle d'élévateur sont formées dans ladite paroi externe de ladite coupelle d'élévateur.
  5. Distributeur de produit cosmétique selon l'une quelconque des revendications 1 à 4, caractérisé en ce que lesdites cannelures (36) sont formées d'un seul tenant avec ladite paroi intérieure (32) de ladite enveloppe extérieure.
  6. Distributeur de produit cosmétique selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'un insert (38) est ajusté à l'intérieur de ladite enveloppe extérieure , lesdites cannelures étant situées sur ledit insert.
  7. Distributeur de produit cosmétique selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte 4 à 8 cannelures.
  8. Distributeur de produit cosmétique selon l'une quelconque des revendications précédentes, caractérisé en ce que le premier élément caractéristique sur la tige d'élévateur (56) comprend un ergot (66) s'étendant radialement vers l'extérieur de la tige.
  9. Distributeur de produit cosmétique selon l'une quelconque des revendications précédentes, caractérisé en ce que le deuxième élément caractéristique sur la paroi interne (72) de l'élément de base (70) comprend une section de voie hélicoïdale interne (74).
  10. Distributeur de produit cosmétique selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le premier élément caractéristique sur la tige d'élévateur (56) comprend un filet de vis (174) sur celle-ci.
  11. Distributeur de produit cosmétique selon la revendication 10, caractérisé en ce que le deuxième élément caractéristique sur la paroi interne (72) de l'élément de base (70) comprend une section taraudée (166).
EP00108919A 1999-05-07 2000-04-27 Distributeur de bâton rouge à lèvre à enveloppe extérieure fonctionelle Expired - Lifetime EP1050232B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US09/307,297 US6227733B1 (en) 1999-05-07 1999-05-07 Lipstick dispenser with functional A-shell
US09/307,516 US6231254B1 (en) 1999-05-07 1999-05-07 Slim dispenser
US307516 1999-05-07
US307297 1999-05-07

Publications (3)

Publication Number Publication Date
EP1050232A2 EP1050232A2 (fr) 2000-11-08
EP1050232A3 EP1050232A3 (fr) 2001-12-19
EP1050232B1 true EP1050232B1 (fr) 2004-07-28

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ID=26975644

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00108919A Expired - Lifetime EP1050232B1 (fr) 1999-05-07 2000-04-27 Distributeur de bâton rouge à lèvre à enveloppe extérieure fonctionelle

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Country Link
EP (1) EP1050232B1 (fr)
AT (1) ATE271801T1 (fr)
DE (1) DE60012402T2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10455920B2 (en) 2018-03-14 2019-10-29 Margaret Spicer Meranus Personal product applicator and dispenser

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166474A (en) * 1977-03-08 1979-09-04 Eyelet Specialty Co., Inc. Cosmetic container construction
DE3916670A1 (de) * 1989-05-23 1990-11-29 Schwan Stabilo Schwanhaeusser Auftragsgeraet fuer kosmetische anwendungen
US5018893A (en) 1990-03-29 1991-05-28 Holloway Thomas F Cosmetic stick dispenser
FR2698249B1 (fr) * 1992-11-24 1998-11-20 Suzuno Kasei Co Ltd Mécanisme de fourniture de produits cosmétiques du type en bâton, conteneur l'employant et cartouche qui y est employée.
JP3333730B2 (ja) * 1997-12-25 2002-10-15 鈴野化成株式会社 棒状化粧材繰出容器
US6048122A (en) * 1998-08-05 2000-04-11 Suzuno Kasei Kabushiki Kaisha Container for feeding a stick type cosmetic material

Also Published As

Publication number Publication date
EP1050232A2 (fr) 2000-11-08
EP1050232A3 (fr) 2001-12-19
DE60012402D1 (de) 2004-09-02
DE60012402T2 (de) 2005-09-01
ATE271801T1 (de) 2004-08-15

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