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
  • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
  • A45D34/02—Scent flasks, e.g. with evaporator
• • 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
  • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes

Definitions

• the present invention relates to a fluid substance sample dispenser, in particular but not exclusively for cosmetic substances.
• Known distributors include a cylinder which defines a chamber intended to receive said substance.
• the cylinder is closed at a first end by a piston adapted to slide inside said cylinder and at a second end by a cap.
• the cap is movable in rotation relative to the cylinder, between an open position and a closed position.
• Said dispenser includes locking means to prevent the piston from being accidentally pressed into said cylinder, which could expel said substance outside said chamber if the cap was unfortunately in an open position.
• Such a dispenser is described in particular in document FR 2 826 245.
• the second end of the cylinder has at least one upper wall portion perpendicular to the axis of the cylinder in which is formed an orifice situated outside the axis of rotation of the cap and the cap has a suitable wall portion to be applied against said orifice to close it, said wall portion having a bore leading to the outside of said cap and capable of cooperating with said orifice.
• said cap is adapted to be driven in rotation so as to make the bore coincide with said orifice to extract said fluid substance.
• the cylinder has a removable skirt forming the locking means, said skirt extends around said piston to its base to prevent the piston from being inadvertently pushed into the cylinder.
• the locking means do not allow either to prevent the cap from being driven into said open position, at least before a first use, or to completely avoid the depression of the piston which can be easily actuated under the skirt.
• An object of the present invention is then to provide a sample dispenser which allows, before a first use, both to lock the cap in the closed position, but also to prevent the relative movement of the piston and said cylinder.
• the present invention provides a dispenser for a sample of a fluid substance, in particular of cosmetic substances, said dispenser comprising a cylinder which defines a chamber intended to receive said substance and which is closed at one end by a piston adapted to slide. in said cylinder and at a second end by a cap, movable in rotation between an open position and a closed position, said distributor comprising locking means; said cap comprises a skirt adapted to be applied against the wall of said cylinder, said skirt having a first radial slot intended to cooperate with a second radial slot formed in said second end of said cylinder in said open position so that said chamber opens towards the exterior, and said locking means comprise a tubular member adapted to hold said cap in said closed position and to block it in translation relative to said piston, said tubular member having a breakable part to release said cap from said tubular member.
• an advantageous characteristic of the invention lies in the mode of immobilization of said cap relative to said piston before a first use by a tubular member of which a part is breakable.
• said tubular member and said cylinder have means for locking in rotation, one with respect to the other and said tubular member and said cap are integral with one another in rotation so as to lock in rotation said cap relative to said cylinder in said closed position.
• the cap has a spout for channeling the liquid substance.
• said tubular member has a body part integral with said breakable part, said piston being held in translation in said body part, spaced from its internal wall so as to leave a cylindrical free space between said piston and said internal wall, in which said cylinder is capable of being housed.
• the translational driving of said cap towards said body part causes the relative displacement of said piston in said cylinder while said cylinder is driven in said cylindrical free space.
• said first end of said cylinder comprises a flange having a radial groove, capable of being driven in said cylindrical free space and in that said body part has an internal longitudinal rib suitable for be engaged in said radial groove to form said means for blocking the rotation of said cylinder relative to said tubular member.
• the cylinder being linked in rotation with the body part which itself is adapted to be connected to the cap by said breakable part, said cap is able to be kept in the closed position relative to said cylinder.
• the cap is capable of being rotated by keeping the body part in a fixed position without the cylinder also being rotated by the frictional forces appearing between the cap and the cylinder.
• said body part has internal retaining means against which said flange is adapted to come to bear in order to block in translation said cylinder relative to said piston in opposite directions. one of the other.
• the end of said piston opposite to said cylinder is extended by a concentric sleeve which surrounds said piston, the internal surface of said sleeve being remote from the external surface of said piston so as to form a tubular concentric space capable of receiving said cylinder, and said sleeve is adapted to be housed in a first cylindrical portion of said free space, against said internal wall of said body part, said concentric space coinciding with a second cylindrical portion of said free space in which said cylinder is adapted to be driven.
• the end of said piston adapted to slide in said cylinder comprises a flared circular sealing lip, adapted to bear against the internal wall of said cylinder.
• the internal pressure of the chamber tends to press said lip against the internal wall of the cylinder, which increases the seal between the piston and the cylinder during the ejection of the fluid substance.
• said second end of said cylinder has a portion of cross section smaller than that of said cylinder to form an internal shoulder and in that said skirt intended to be applied against the internal wall of said cylinder, comprises a peripheral rod projecting from the surface of said skirt and adapted to bear against said shoulder to block said cap in translation relative to said cylinder.
• said peripheral ring is interrupted to form two free stop ends
• said internal shoulder has a stop extending in the vicinity of the surface of said skirt between said two free stop ends to limit in rotation the stroke of said cap relative to said cylinder between said closed position in which one of the free stop ends is in abutment against one face of said stop and said open position in which the another of said free stop ends is in abutment against the opposite face of said stop.
• said tubular member and its body part provided with said internal longitudinal rib and said cap are adapted to be molded in one piece from plastics, which makes it possible to obtain a dispenser at a very advantageous cost.
• the piston and its concentric sleeve are also molded in one piece as well as the cylinder. In this way, with only three separate parts which are easy to produce by molding, it is possible to produce the dispenser according to the invention.
• FIG. 1 is a schematic rear view of a dispenser according to the invention in a first state
• FIG. 2 is a schematic view in axial section of the dispenser illustrated in Figure 1 along the plane II-II parallel to the plane of Figure;
• FIG. 3 is an axial sectional view of the dispenser illustrated in Figure 1 along the plane III-III perpendicular to the plane of Figure;
• - Figure 4 is an axial sectional view of the dispenser according to the invention in a second state; and, - Figure 5 is a particular schematic view from below of the object of the invention shown in Figure 3.
• FIG. 1 illustrates a dispenser according to the invention in external rear view in a first locked state indicating that it has not yet been actuated.
• Said dispenser has, overall, an envelope of cylindrical symmetry and appear in FIG. 1 as shown, a tubular member 10 consisting of a body part 12 and a breakable part 14 which connects the body part 12 to a cap 16 by partially surrounding a cylinder 18, here on three quarters of the circumference of the cylinder 18.
• a tubular member 10 consisting of a body part 12 and a breakable part 14 which connects the body part 12 to a cap 16 by partially surrounding a cylinder 18, here on three quarters of the circumference of the cylinder 18.
• the cap 16, the breakable part 14 and the body part 12 form a single piece which has a first annular constriction 22 and a second annular constriction 24, delimiting the three parts; these annular throttles 22, 24 constituting thinned wall portions subsequently making it possible to tear the breakable part 14 and to completely separate it from the cap and from the body part 12, as will be explained in more detail in the following description.
• a part 26 forming a piston consisting of a piston part 28 which is partially engaged in a lower end 30 of the chamber 21, and of a concentric sleeve 31 which extends said part of piston 28 surrounding it; the part 26 thus having a U-shaped radial section.
• the piston part 21 closes off the lower end 30 of the chamber in a sealed manner thanks to a flared circular lip 32 which bears against the internal wall 34 of the chamber 21.
• the end of said piston portion 28 opposite to said cylinder 18 forms a bottom 36 to which is connected the concentric sleeve 31 which surrounds said piston.
• the concentric sleeve 31 is spaced from the piston part 28 to form a concentric space 38 and it is applied against an internal wall 40 of the body part 12, the bottom 36 flush with an open end 42 of the body part 12.
• the body part 12 forms a cylinder of revolution in which extends said part 26 and the concentric sleeve 31, between the open end 42 and an upper end 44.
• This upper end 44 is tightened against the external wall 45 of the cylinder 14 by forming an internal shoulder 46 against which the edge of the concentric sleeve 31 bears.
• This tightened upper end 44 is extended by the breakable part 14 from which it is distinct thanks to the first annular constriction 22.
• the cylinder 18 is itself retained in translation in a direction opposite to the piston part 28, in the upper end 44 constricted by a projecting flange 48 located in the vicinity of the lower end 30 and which bears against the shoulder 46.
• the diameter of the flange 48 is less than the diameter of the concentric sleeve 31, on the one hand to bear entirely against the shoulder 46 by adjoining the edge of the concentric sleeve 31 and on the other hand to be driven in translation in the concentric space 38 with the cylinder 18 without friction constraint, as will be explained in the following description.
• a longitudinal rib 50 appears which extends from the shoulder 46, perpendicular to the external wall 45 of the cylinder in the concentric space 38 against the concentric sleeve 31 and up to the bottom 36.
• Figure 5 which shows a bottom view of the object shown in Figure 3 stripped of the part 26, there is the longitudinal rib 50 and the shoulder 46 from which it extends freely. Furthermore, the flange 48 of the cylinder 18 has a groove 52 in which the longitudinal rib 50 is engaged. In this way, the cylinder 18 is kept in rotation and therefore indexed relative to the body part 12. On the other hand, the cylinder 18 is adapted to slide in the concentric space 38, the longitudinal rib engaged in the groove 52 being intended to guide it in translation over the entire travel of its movement.
• the upper end 54 of the cylinder 18, opposite the lower end 30, forms a recess with respect to the cylinder 18 defining an internal shoulder 56 and an external shoulder 58.
• the cap 16 has an adapted internal skirt 60 to be applied against the internal wall of the upper end 54, the free edge of the internal skirt having a peripheral ring 62 projecting and resting on the shoulder 56 intended to block the cap 16 in translation relative to the cylinder 18
• the cap 16 has an upper wall 64 to which the internal skirt 60 is connected and which extends radially around the internal skirt beyond the free edge of the upper end 54 of the cylinder 18.
• An external skirt 66 concentric with the internal skirt 60, extends from the upper wall 64 against the external wall of the upper end 54 up to the external shoulder 58. It is at the level of the external shoulder 58 that the breakable part 14 and the external skirt 66 are connected, delimited by the second annular constriction 24.
• the upper end 54 extends in said space located between the two skirts and it seals a first radial slot 70 appearing in section.
• cap 16 whose dispensing spout is oriented towards the rear and the internal skirt 60 in which the radial slot 70 is formed.
• stop 76 projecting from the shoulder 56.
• this Figure 2 illustrates a second radial slot 78 which is formed in the upper end 54 of the cylinder 18 from its free edge.
• This second radial slot is completely closed by the walls of the two skirts, internal 60 and external 66; and it will be noted that the radial slots 70, 78 are offset by 90 °, one with respect to the other.
• the upper end 54 of the cylinder 18 is closed in a substantially sealed manner by the cap 16.
• the body part 12, the breakable part 14 and the cap 16 are molded in one piece of plastic material, and the cylinder 18 is then fitted into the tubular member 10, the upper end 54 embedded in the cap. 16, as shown in the
• the chamber 21 delimited by the cylinder 16 is capable of being filled with a fluid substance, for example a cosmetic substance, then closed at its lower end 30 by means of the piston part 28 by engaging the part 26 in the body part 12 from the open end 42.
• the part 26 is held in a fixed position in the body part 12 by means of an internal peripheral ring 80 bordering the open end 42 against which the bottom 36 comes to bear.
• the dispenser thus produced is able to be used.
• the cap 16 is free relative to the body part 12 and therefore partially free in rotation relative to the cylinder 18.
• the rotation of the cap 16 is in fact limited by the stop 76 and the free stop ends 72 , 74.
• the free stop end 74 abuts against the stop 76 in a closed position as it appears in Figure 3. From this representation illustrated in Figure 3 and in considering that the breakable part 14 has been removed, the cap 16 is kept in a fixed position and the body part 12 is rotated 90 ° in counterclockwise rotation when viewed from below, which in turn causes the cylinder 18 thanks to the cooperation of the longitudinal rib 50 and the groove 52 of the flange 48, and positions the second radial slot 78 opposite the first radial slot 70.
• the cylinder 18 tends to penetrate into the concentric space 38 and simultaneously the piston part 28 in the chamber 21, which has the effect of expelling the substance which it contains through the path of passage F.

Applications Claiming Priority (2)

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• 2003
  • 2003-04-23 FR FR0304981A patent/FR2854038B1/fr not_active Expired - Fee Related
• 2004
  • 2004-04-21 AT AT04728548T patent/ATE333223T1/de not_active IP Right Cessation
  • 2004-04-21 DE DE602004001587T patent/DE602004001587T2/de not_active Expired - Lifetime
  • 2004-04-21 CA CA002522938A patent/CA2522938A1/fr not_active Abandoned
  • 2004-04-21 MX MXPA05011364A patent/MXPA05011364A/es unknown
  • 2004-04-21 JP JP2006505220A patent/JP2006524074A/ja not_active Withdrawn
  • 2004-04-21 WO PCT/EP2004/004230 patent/WO2004093596A1/fr active IP Right Grant
  • 2004-04-21 CN CNB2004800110326A patent/CN100456990C/zh not_active Expired - Fee Related
  • 2004-04-21 EP EP04728548A patent/EP1615525B1/de not_active Expired - Lifetime
  • 2004-04-21 BR BRPI0410499-4A patent/BRPI0410499A/pt not_active Application Discontinuation
• 2005
  • 2005-10-24 US US11/257,186 patent/US7213726B2/en not_active Expired - Fee Related

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