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
  • A45D40/06—Casings wherein movement of the lipstick or like solid is a screwing movement

Definitions

• the invention relates to a device for applying a pasty product, in particular a cosmetic product such as lipstick, presented in the form of a stick, a device of the kind which includes: a tubular sliding element in which is slidably mounted a cup intended to receive the product stick and comprising at least one lug engaged in the slide; a cylindrical envelope, in the wall of which at least one helical groove is provided, this etan envelope fitted on the tubular element and being retained thereon by abutment means at its two axial ends, the lug (s) with the cup being engaged in the helical groove (s) of the envelope and, optionally, an outer jacket, in particular metallic, in which the envelope is blocked, while the tubular element can rotate relative to said envelope and jacket, the assembly being such that when the tubular element is rotated relative to the envelope, the cooperation of the lug (s) of the cup with the propeller causes an axial movement of the cup and the outlet or re-entry of the stick of the product, according to the direction of rotation, through an
• the object of the invention is, above all, to provide a device for applying a pasty product, of the kind defined above, which better meets the various requirements of practice than hitherto and which, in particular, no longer exhibits or to a lesser degree, the drawback recalled above. It is further desired that such a device be simple and economical to manufacture.
• a device for applying a pasty product in particular a cosmetic product such as lipstick, presented in the form of a stick, of the kind defined previously, is characterized in that the tubular slide element is fitted, on its outer wall, towards its end remote from the outlet end, with elastic stop means capable of bearing against the neighboring edge of the cylindrical casing and / or of the jacket when these have been fitted onto the tubular element, the aforesaid elastic stop means pushing said envelope, in a direction parallel to the axial direction against the stop means provided at the other end.
• the elastic abutment means may comprise a boss projecting radially outward, provided on a flexible strip of the wall of the tubular element.
• this flexible strip is oriented transversely relative to the axis of the tubular element.
• Said flexible strip can be defined by two transverse lu ⁇ m restaurants provided on either side of said strip.
• the flexible strip consists of a part of the wall of the tubular element, generally made of plastic.
• the flexible strip is preferably oriented in the circumferential direction, orthogonally to the axis of the tubular element.
• the elastic stop means are generally provided in at least two diametrically opposite locations of the tubular element. These elastic abutment means can be located, along the circumference, at right angles to two diametrically opposite slides of the tubular element
• the elastic abutment means in particular the boss lage, have a radial dimension sufficient to rub against the inner surface of the liner and serve as a lateral brake.
• the elastic means can comprise an elastic part disposed between a shoulder of said tubular element and the cylindrical casing and / or the jacket.
• Said elastic piece is advantageously formed by an elastic ring surrounding the tubular element.
• the invention also relates to a tubular element for a device as defined above, this tubular element being characterized by the fact that it is fitted, on its outer pa, towards its end which is free from the end of its elastic stop means , comprising, in particular, a boss provided on a transverse flexible strip delimited by two slots provided on either side of the strip.
• the invention consists, apart from the arrangements set out above, of certain other arrangements which will be more explicitly discussed below in connection with a particular embodiment described with reference to the attached drawing, but which is not '' by no means limiting.
• Figure 1 of this drawing, is a section along the line I-I of Figure 2.
• Figure 2 is a right view of the device, relative to Figure 1, with parts broken away.
• Figure 3 is an elevational view illustrating the establishment of the cylindrical envelope, partially shown, on the tubular element.
• the figure is an elevational view of the tubular element on which the cylindrical envelope has just been fitted.
• Figure 5 is a section along the line VV of Figure 3.
• Figures 6 to 10 show, in partial axial half-section, alternative embodiments.
• FIG. 11 is an elevation view of a device according to FIG. 6.
• FIG. 14 is an elevation view of the elastic ring of the variant of FIG. 15.
• Figures 15 to 18, finally, represent. in partial axial half-section, other alternative embodiments.
• a device 1 can be seen for applying a pasty product, in particular lipstick, presented in the form of a stick 2.
• This device 1 comprises a tubular element 3, in which two diametrically opposed slides 4, 5 are provided, constituted by slots passing through the wall of the element 3.
• the upper end 6 of the slide 4 is open. te as visible in Figures 1 and 2, however, the slide 5 is closed at its upper end.
• the two slides 4 and 5 are closed at their lower end located on the side of a button 7, forming emb 0 se ( e 1 " tubular element 3 and integral with the latter.
• the slides 4 and 5 are rectilinear and bordered by two generatrices of the tubular element 3 which is cylindrical.
• the slide 4 has, at its lower end, a notch 8 in the peripheral direction.
• a similar groove -> can be provided at the lower end and at the upper end of the slide 5 for end-of-travel blocking.
• a cup 9 (Figure 1), intended to receive the stick 2, is slidably mounted in the tubular element 1; this cup has two lugs 10, 11 diametrically opposite 0 engaged, respectively, in the slide 4 and 5.
• the lugs 10 and 11 protrude radially outward from a distance sufficient to completely cross the slide 4 and and protrude beyond the outer surface of element 3. 5
• a cylindrical casing 12 is fitted on the tubular element 3 and is retained on the latter by stop means B1, B2 at its two axial ends.
• the envelope 12 has, in its wall, at least one, and preferably two grooves 13, 14 in a helix, diametrically opposite. These grooves 13, 14 can be formed by slots passing through the wall of the envelope 12, these slots being closed at their ends.
• the lugs 1.0 and 11 are engaged, by their outer radial ends, in the grooves 13, 14.
• the tubular element 3, the cup 9 and the casing 12 are generally made of plastic.
• the envelope 12 is blocked, in particular by force-fitting or by gluing in an outer jacket 15, in particular of metal, the end 16 of which, opposite the outlet orifice 17 of the tubular element 3, is received in a annular recess 18 formed on the button 7.
• the element 3 and the button 7 are mounted free to rotate relative to the casing 12 and to the jacket 15.
• the stops B1, B2 are provided on the tubular element 3.
• the stop B1 is formed by a flange 19 projecting radially outward, surrounding the outlet orifice 17 of the tubular element 3.
• the edge 20 of the jacket 15 is folded over this flange 6 and delimits an orifice passage of the same diameter as that of the orifice 17.
• the envelope 12 with a closed circular outline, has an inside diameter substantially equal to the outside diameter of the element 3, below the flange 19; the outside diameter of the envelope 12 is slightly greater than that of the collar 19.
• the diameter of the button 7 is greater than the outside diameter of the envelope 12 and is approximately equal to the outside diameter of the jacket 15.
• the casing 12 is mounted, on the tubular element 3, by snap-fastening or snap-fastening. For this, as schematically illustrated in FIG. 3, the casing 12 is threaded over the end of the tubular element 3 provided with the flange 19.
• the stop means B2 provided on the element 3, towards its end remote from the outlet orifice 17, are
• Each elastic stop means 21 comprises a boss 23 projecting radially outwards, provided on a flexible strip 24 of the wall of the tubular element 3.
• the flexible strip 24 is oriented transversely relative to the direction of the axis AA of the tubular element 3.
• this flexible strip is oriented in the circumferential direction, orthogonally to this axis AA as shown in FIG. 3.
• the tubular element 3 may comprise, in front of the button 7, a zone 25 of larger outside diameter, forming a shoulder 26 at the connection with the major part of the tubular element 3; the outside diameter of the zone 25 is substantially equal to the outside diameter of the casing 12.
• the flexible strip 24 can be provided at the edge of the shoulder 26, in the zone 25 as shown in FIGS. 3 and 4.
• the embossment 23 makes projection, in a direction parallel to the axis AA, with respect to the shoulder 26, in the direction of the flange 19 - H has been designated by the distance in the axial direction between the shoulder 26 and the flange 19.
• the axial length of the envelope 12 has been designated by L.
• the flexible strip 24 is delimited by two transverse slots 27, 28 provided transversely on either side of said strip 24.
• This strip therefore consists of a tongue protrusion from the wall of the element 3 which remains between two slots 27 , 28 practiced in this wall.
• the angular extent E of the strip 24 appears in FIG. 5. It can be of the order of 15 °.
• the boss 23 is located on the edge of the ban ⁇ of 24 facing the flange 19-
• elastic stop means 21 are provided in two diametrically opposite places of the tubular element 13 as visible in FIG. 5, each elastic stop bu 21 means being arranged as described above.
• these elastic abutment means 21 are killed, along the circumference, at a right angle with respect to the slides 4, 5 as also visible in FIG. 5, to promote release from the mold.
• the abutment means 21 may, as a variant, be provided in the axis of the slide.
• Each boss 23 has a radial dimension sufficient to rub against the internal surface 29 (FIG. 5) of the jacket 15.
• the flexible blade 24 also has elasticity in the radial direction, this elasticity making it possible to keep the boss 23 constantly in abutment against the internal surface 29-
• T The distance in the direction parallel to the axis A-A between the flange 19 and the edge of the boss 23 facing this flange has been designated by T (FIG. 3).
• the distance T is chosen to be less than the distance L envelope 12 can take as a result of dimensional manufacturing variations. Under these conditions, when mounting the envelope
• the elastic means 21 o consist of an elastic ring R surrounding the tubular element 3; the ring R is placed between a shoulder Q of the tubular element 3 and the cylindrical casing 12 and / or the jacket 15.
• the shoulder Q is located at the transition zone between the button 7 "and the part of the tubular element 3 located in front of this zone, that is to say above this zone according to the representation. of Figures 6 to 18.
• the elastic ring R is constituted by an O-ring disposed between the shoulder Q and the dirty end face of the jacket 15.
• the axial thrust exerted by the ring 30 on the jacket 15 is transmitted to the envelope 12 integral with this shirt I
• the ring 30 therefore pushes the envelope 12 against the flange 19, as explained above, although said ring 30 is not directly in contact with the end of the envelope 12.
• the shoulder Q is arranged so that this bearing Q would have the effect of limiting the crushing of the ring 30 when it is forcibly mounted in the transition zone between the button 7 and the cylindrical envelope 12 and / or the jacket 15.
• FIG. 11 shows the external appearance of the device of FIG. 6, the ring 30 appearing between the button 7 and the jacket 15.
• FIG. 7 shows a variant in which the elastic means 21 are constituted by an O-ring 31 which clamps the body of the tubular element 3.
• This O-ring 31 is axially clamped between the shoulder Q and the transverse face end of the envelope 12.
• the ring 31 directly exerts its thrust on the envelope 12 which is thus held in abutment, at its other end, against the flange 19.
• the jacket 15 can axially cover the ring 31 and the latter can rub, outside in the radial direction, against the interior surface of the jacket 15, as shown in FIG. 9 -
• FIG. 8 illustrates a variant of FIG. 6 according to which - the shoulder Q has a shoulder surface 32 inclined radially outward; this surface 32, of revolution, admits an arc-shaped meridian turning its concavity towards the outside, the diameter of the surface 32 gradually increasing towards the button 7.
• the O-ring 30 is tightened axially between this surface 32 and the shirt 15.
• FIG. 10 illustrates a variant in which the elastic means 21 are formed by an elastic ring 33 of revolution, of circular or elliptical cross section, tightened axially against the shoulder Q which has an inclined shoulder surface 34 radially outward.
• This surface 34 is frustoconical or slightly convex towards the outside and increases in diameter in the direction of the button 7.
• the envelope 12 has a rim 35 also having a frustoconical surface 36 oriented in the opposite direction to the surface 34; the ring 33 is clamped axially between the two surfaces 34 and 36 which converge towards one another.
• the jacket 15 can come to bear against the external radial shoulder formed by the projection of the rim 35.
• Figures 12 and 1 3 show variants of embodiment in which the elastic means 21 are constituted by elastic rings having a transverse section in the form of a dihedron.
• the elastic ring 37 comprises a cylindrical part 38 surrounding the part of the tubular element 3 located beyond the button 7, said part 38 bearing axially against the shoulder Q.
• This cylindrical part 38 is secured, at its end remote from the shoulder Q, with a lip 39 of substantially frustoconical shape directed towards the shoulder Q and progressively increasing in diameter in the direction of this shoulder.
• the front end face of the envelope 12 bears axially against the external surface of the lip 39.
• the jacket 15 can come to cover this lip 39, which can then take support, radially outwards, against the inner surface of the liner 15 "has the elastic lip 39 pushes axially against the casing 12 Lerette 19 col.
• FIG. 13 shows an alternative embodiment in which the elastic means 21 consist of an elastic ring 40, of revolution, with a V cross section, the point of the V being turned towards or pressing against the part of the tubular element 3 which extends the button 7.
• One branch of the V is in abutment against the shoulder Q while the other branch of the V is in axial abutment against the front end of the liner 15.
• the bending elasticity of the ring 40 provides axial thrust on the jacket 15, thrust transmitted to the envelope 12 integral with the jacket 15.
• FIGS. 6 and 8 it can be considered that, according to FIG. 13, the elastic means 21 are supported indirectly against the envelope 12.
• the elastic means 21 are formed by an elastic ring 41 of rectangular cross section bearing against the shoulder Q.
• the face 42, facing the envelope and / or the jacket 15, is provided with bosses 43 of substantially hemispherical shape, regularly distributed over the periphery of the face 42.
• the casing 12 is provided with its end facing the button 7 of a collar 44 making a projection radially outward; the transversa ⁇ the face of the flange 44 facing the button 7 abuts against the bosses 43 which make it possible to establish contact along a limited surface reducing friction.
• the elastic means 21 are formed by an elastic ring 45, of revolution, the cross section of which is inscribed substantially in a square; this cross section has a notch 46 in V on the side facing the casing 12 and the jacket 15. Two lips are thus determined on either side of this notch 46; the envelope 12 comes to bear axially against the lip located radially inside, while the jacket 15 comes to bear axially against the other lip.
• the elastic means 21 are formed by an elastic ring 47 with a substantially rectangular cross section, the large dimension of the cross section being parallel to the axis of the device. This rod 47 is partially engaged in an annular recess 48. The part of the ring 47 which projects axially out of the housing 48 abuts against the axial end of the envelope 12 provided with an identical flange 44 to that provided in figure 15.
• the elastic means 21 are formed by an elastic ring 49, of revolution, with a dirty cross-section in the shape of a right triangle, the hypotenuse of which faces the envelope 12 and the jacket 15.
• the ring R could have a cross section substantially in the shape of a polygon.
• the operation of the mechanism is made “smooth" by absorption of parasitic noise and braking of the tubular element 3 relative to the envelope 12 and / or to the jacket 15 thanks to the elastic ring provided between, on the one hand, the tubular element3 and its button 7 and, on the other hand, the casing 12 and / or the jacket 15.
• the elastic ring as described above, can have different profiles and be molded either in elastomers (nitrile, silicone, etc.) or in thermo materials. ⁇ plastics such as polyurethane, polyvinyl chloride, or other suitable plastic.
• the elastic ring can be overmolded on the shoulder Q, or at the base of the casing 12 and / or of the jacket 15. It should be noted that when the elastic means 21 are fixed by overmolding or other means on the 'One of the parts, these elastic means 21 can no longer be constituted by an elastic ring completely surrounding the tubular element but by sectors of elastic material, independent of one another, provided in different zones of the periphery.
• the elastic ring or piece constituting the elastic means 21 may be of solid cross-section or hollowed out; it may, in certain cases, return to the outside on the sleeve 15 to ensure its braking.
• the device according to the invention makes it possible to provide braking and backlash and thus improve the control. It should be noted that the invention applies integrally in the case where the casing 12 and the jacket 15 form a single piece.
• the operation of the device is also improved and the operation of the button 7 is made smoother.
• the automatic mounting of the device can be carried out without difficulty since it is ensured that the envelope 12 may be mounted by snapping onto the tubular element 3.
• the tubular element 3 is produced from a polymer material, in particular a semi-rigid plastic material, having a reduced coefficient of friction.
• the elastic means 21, formed by a ring projecting radially outwards on the jacket 15, make it possible to obtain a good seal when this device is provided with 'a cover which can be interesting in the case where the pasty product contains a volatile material.
• the hardness or smoothness of the function will be adjusted by adjusting the following parameters:

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• Closures For Containers (AREA)
• Support Of The Bearing (AREA)
• Cosmetics (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=9310711

Family Applications (1)

Country Status (7)

Cited By (1)

Families Citing this family (36)

Family Cites Families (16)

• 1984
  • 1984-12-18 FR FR8419335A patent/FR2574640B1/fr not_active Expired
• 1985
  • 1985-12-11 JP JP61500117A patent/JPH0622485B2/ja not_active Expired - Lifetime
  • 1985-12-11 WO PCT/FR1985/000359 patent/WO1986003658A1/fr active IP Right Grant
  • 1985-12-11 EP EP86900155A patent/EP0207114B1/de not_active Expired
  • 1985-12-11 DE DE198686900155T patent/DE207114T1/de active Pending
  • 1985-12-11 DE DE8686900155T patent/DE3569875D1/de not_active Expired
  • 1985-12-17 ES ES1985291070U patent/ES291070Y/es not_active Expired
• 1988
  • 1988-06-27 US US07/220,942 patent/US4812066A/en not_active Expired - Fee Related

Non-Patent Citations (1)

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