EP1446186A1 - Stick containing a product which the user can bring into contact with an absorbent material - Google Patents

Stick containing a product which the user can bring into contact with an absorbent material

Info

Publication number
EP1446186A1
EP1446186A1 EP02795353A EP02795353A EP1446186A1 EP 1446186 A1 EP1446186 A1 EP 1446186A1 EP 02795353 A EP02795353 A EP 02795353A EP 02795353 A EP02795353 A EP 02795353A EP 1446186 A1 EP1446186 A1 EP 1446186A1
Authority
EP
European Patent Office
Prior art keywords
rod
product
absorbent material
stick
products
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.)
Withdrawn
Application number
EP02795353A
Other languages
German (de)
French (fr)
Inventor
Nicolas Trevillot
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1446186A1 publication Critical patent/EP1446186A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00516—Shape or geometry of the outlet orifice or the outlet element
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/38—Swabs having a stick-type handle, e.g. cotton tips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M35/00—Devices for applying media, e.g. remedies, on the human body
    • A61M35/003—Portable hand-held applicators having means for dispensing or spreading integral media
    • A61M35/006—Portable hand-held applicators having means for dispensing or spreading integral media using sponges, foams, absorbent pads or swabs as spreading means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00583—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes the container for the material to be dispensed being deformable
    • 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
    • B65D47/42—Closures with filling and discharging, or with discharging, devices with pads or like contents-applying means
    • 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like

Definitions

  • Rod containing a product that the user can bring into contact with an absorbent material Rod containing a product that the user can bring into contact with an absorbent material.
  • the invention relates to the field of packaging products in a liquid, pasty or gelled state, and their release onto an absorbent material in order to make them accessible to a consumer, for example for their application to a surface.
  • Cotton swabs are frequently used in daily life for cleaning body parts, such as ear canals, or various objects. It is often necessary or useful to coat the surface to be cleaned with a liquid, pasty or gelled product such as an antiseptic solution. For this purpose, it is possible to dip a padded end of the stick in the container containing the product to be applied to the area to be treated.
  • Padded sticks are known, described for example in documents WO-A-00/00147, or WO-A-98/11852, in which the stick is hollow and contains liquid such as an antiseptic solution, an eye drop. This liquid can be expelled towards one end of the stick to impregnate the padded part thereof, using a pressure exerted manually by the user. A portion of the stick can, for this purpose, have a bulge playing the roles of a liquid reservoir increasing the capacity of the stick and a privileged area for the exercise of the expulsion pressure. The other end of the stick is not provided with an absorbent material, or it is not in communication with the interior of the stick and remains dry. This second configuration allows the user to precede or follow the wet cleaning phase or the application of a liquid with a dry cleaning phase or absorption of the liquid deposited in excess.
  • Document US-A-3,519,364 also discloses application devices in two parts sliding one inside the other.
  • a tubular part is capped at one of its ends by the absorbent material and contains the product to be applied. It is closed with a seal.
  • the other part is a rod that the user can slide inside the tubular part like a piston, to reduce the free internal volume of the latter and thus push the product towards the absorbent material, . breaking the seal under the sole effect of the pressure of the product.
  • the object of the invention is to propose a stick of the type which has just been described, free from this drawback.
  • the subject of the invention is a stick containing a product in the liquid, pasty or gelled state, which the user can bring into contact with an absorbent material located at one end of said stick, of the type comprising:
  • a first solid or hollow rod provided in the latter case at one of its ends with a closure device;
  • a second hollow rod containing said product one end of which is provided with an absorbent material and the other end of which accommodates said first rod by its end, optionally provided with a closure device; - Said first rod being able to slide inside said second rod so as to push said product towards said absorbent material by its end;
  • said second rod comprising at its end provided with an absorbent material closing means preventing contact between the product and the absorbent material before the use of the stick; characterized in that it comprises means for breaking said closure means preventing contact between the product and the absorbent material controlled by the sliding of the first rod in the second rod.
  • Said means preventing contact between the product and the absorbent material can be constituted by a cover covering the second rod.
  • Said means for breaking said shutter means can be constituted by a protrusion integral with said first rod.
  • Said means prevent contact between the product and the absorbent material can be constituted by a wall delimiting the end part of the second rod and having a frustoconical shape tapering towards its end.
  • Said wall then preferably comprises lines of least resistance.
  • the end of said first rod may then have a section provided with branches intended to exert pressure on the wall in line with the lines of least resistance.
  • Said absorbent material located at one end of the second rod may be cotton wool.
  • the absorbent material located at the end of the first rod not received by the second rod may be cotton wool.
  • Said absorbent material located at the end of the second rod may be a spongy material.
  • the end of the first rod not received in the second rod may include a bulge, and the second rod may have on its outer wall a ring.
  • Said first rod may also contain a product in the liquid, pasty or gelled state.
  • the products contained respectively in said first and second rods may be different.
  • At least one of said products can be an antiseptic product.
  • At least one of said products can be a product for cosmetic use. At least one of said products can be a cleaning product.
  • At least one of said products can be a perfume.
  • At least one of said products can be an adhesive.
  • At least one of said products can be a paint.
  • the invention consists in providing means assisting the rupture of the cover, or of any other type of functionally equivalent wall which prevents contact between the product and the material used for its application when the stick is in new condition.
  • the expulsion of the product is no longer dependent on the only pressure exerted by the product on the wall.
  • the rupture of the wall is thus carried out with greater reliability. Above all, it is achievable without the user seeing the progression of the rod being too appreciably braked, which increases the comfort of use and can make the expulsion of the product more gradual.
  • FIG. 1 which shows, seen in section, an example of a cotton swab according to the invention, before use;
  • - Figure 2 which shows the same stick ready to be used, one of the padded ends being impregnated with the product initially contained by the stick;
  • FIG. 3 which shows, in section, a variant of the invention using a stick end made of a sponge absorbent material
  • FIG. 5 which shows, sectional view, another variant of the invention in which the sliding of a rod rod in the other is effected by a fold of one of the rods on itself;
  • FIG. 1 A first example of implementation of the invention is shown in Figure 1. It is a stick with a cotton ball at its two ends, of the type conventionally used, for example, for cleaning conduits hearing.
  • first rod 1 generally cylindrical, made of a material such as polypropylene.
  • This first rod 1 has at one of its ends a first wadding pad 2 which is fixed to its outer wall by the means conventionally used for this purpose.
  • the first rod 1 has a bulge 3 which slightly increases its diameter.
  • This bulge 3 can, as shown, be integrated in construction with the first rod 1, which is then full, or be constituted by a cap initially independent of the first rod 1. In the latter case, the first rod 1 can be hollow, the cap then also playing the role of a device for closing the rod 1.
  • the stick has a second rod 4 which is imperatively hollow. One of its ends is surrounded by a second cotton pad 5. The other end receives the bulge 3 of the first rod 1.
  • the diameter of the bulge 3 and the internal diameter of the second rod 4 are chosen such that so that they allow sliding of the first rod 1 inside the second rod 4, while maintaining a seal of their mutual contact. ' This sealing is necessary, because the second rod 2 contains a product 6 in the liquid, pasty or gelled state, which it is desired for it to impregnate the second cotton ball 5 during the use of the stick. To maintain this seal at the other end of the stick before use, and also to avoid contact between the product 6 and the ambient air if necessary, a cover 7 covers the second rod 4, so as to close it .
  • the product 6 may, depending on the uses envisaged, be a product intended to assist the cleaning of the ear canal by dissolution of cerumen, or an antiseptic solution, or any other liquid, pasty or gelled product for medical or cosmetic use by local body application.
  • the product 6 can also be a cleaning solution or another substance for non-medical use, the application of which can advantageously be carried out using the cotton ball 5.
  • the first rod 1 has at its end introduced into the second rod 4, a protrusion 9. This has a length which allows it to come into contact with the cover 7 during the sliding of the first rod 1 before the product 6 comes to fill the entire space available between the bulge 3 and the cover 7, or at this precise moment at the latest.
  • the stick is used as follows.
  • the user pushes on the first rod 1 according to arrow 8, so as to make the first rod 1 penetrate more deeply inside the second rod 4 in the manner of a piston.
  • the cover 7 breaks, and the product 6 impregnates the second wadding pad 5.
  • FIG. 2 represents the stick after complete penetration of the first rod 1 in the second rod 4 which caused a total expulsion of the product 6 (we have not shown the cover 7 broken in Figure 2).
  • the product 6 can then be applied using the second cotton ball 5 to the area to be treated.
  • the first cotton wool pad 2 which has remained dry, can be used to remove excess product 6 spread over the treated area. It can also be used before the second pad 5 to perform a dry pre-cleaning of the area to be treated.
  • the material of the rod 4 must be impermeable to this product 6.
  • the polypropylene can be used for many applications.
  • other materials presenting a seal to the product 6 and suitable mechanical characteristics can be used.
  • the stick according to the invention has the following advantages in particular.
  • the liquid is expelled by means of a translational movement, which is easier to control by the user than the usual pressure movement in the sticks of WO-A-00/00147 or WO-A-98 / 11852.
  • this translational movement when it has been carried out until complete penetration of the first rod 1 into the second rod 4, allows the total expulsion of the product 6 outside the second rod 4.
  • the user has no difficulty in achieving and verifying this total expulsion since it is sufficient for this purpose to control the penetration of the first rod 1. It is even possible for him, s '' he wishes, to expel during at least the first use of the stick, only a part of the product 6. Graduations written on the first rod 1 can give an indication of the amount of product 6 which has actually been expelled.
  • the product 6 has a consistency which allows it to remain in the stick, even after the rupture of the cover 7 possibly present. Its properties must also not be too quickly affected by the possibility of exposure to air caused by the rupture of the seal 7. For this reason, such fractional use may not be advisable if, for example, product 6 must have aseptic properties during its use.
  • Reliefs or knurling formed on the surfaces of the rods 1, 4 can facilitate the gripping and handling of the stick by the user.
  • the variant of the invention shown in Figure 3 differs from the previous one in that: the padded pad 2 of the first rod 1 has been removed; the first rod 1 therefore does not include any absorbent material; and the padded pad 5 of the second rod 4 has been replaced by a spongy material 10 which can be given, if necessary, a well-defined shape and dimensions.
  • the product 6 can, for example, be a paint, nail varnish, an adhesive.
  • a bulge 11 formed at the free end of the first rod 1 and a ring 12 formed around the second rod 4 can, as shown, facilitate gripping and use of the device, in the manner of a syringe.
  • the user can thus carry out with one hand and simultaneously the operations of impregnating the spongy material 10 and applying the product 6 to the surface to be treated.
  • Another possible use of the device can be the packaging of perfume samples, for which various types of absorbent materials can be used.
  • FIG. 4 shows such a variant.
  • the first rod 1 is closed by a cover 13 at its end engaged in the second rod 4, and comprises, at its other end, a bulge 14 forming a reservoir.
  • the protrusion 9 is placed at the periphery of the bulge 3 of the first rod 1, and not at its center, so as to allow the presence of the cover 13.
  • the user can expel the product 6 ′ located in the first rod 1 by pressing on the bulge 15, as is known in the prior art.
  • the cover 13 of the first rod 1 must not be damaged during the first phase of use of the stick, so that the first rod 1 can play its role of piston on the product 6 contained in the second rod 4 It is preferable that the cover 13 of the first rod 1 does not come into contact with the internal wall of the second rod 4 during the driving operation.
  • the cover 13 can be glued in a housing 16 formed on the upper surface of the bulge 3, which also has the advantage of leaving space available to provide the protrusion 9.
  • the variant of the invention shown in FIG. 5 differs from the previous ones in that the sliding of the first rod 1 inside the second rod 4 is carried out as follows.
  • the end 16 of the second rod 4 opposite to the padded end is secured to the first rod, preferably in leaktight manner.
  • At least a portion 17 of the length of the second rod 4 has a certain flexibility and is shaped "in accordion", so as to be able to fold back on itself when the user exerts on the second rod 4 a force, directed according to the arrow 18, tending to bring the two ends of the second rod 4 closer together.
  • This force and this folding of the second rod 4 on itself have the effect of reducing the volume available for the product 6 in the second rod 4 thanks to a approximation of the bulge 3 and the end of the second rod 4 carrying the second padded pad 5, and thus allowing the expulsion of the product 6 after the rupture of the cover 7 by the protrusion 9.
  • the various configurations of the device according to the invention which have been described are only examples, the different characteristics of which can be replaced by functionally equivalent characteristics.
  • the presence of the bulge 3 at the end of the first rod 1 is not strictly compulsory, if the respective dimensional characteristics of the rods 1 and 4 and the consistency of the product 6 make it possible to obtain a tightness of the rod deemed sufficient. , in unused condition and during use.
  • FIG. 6 Another variant of the invention is shown in FIG. 6.
  • the means for closing off the second rod 4 are no longer constituted by a cover, but by a wall 19 made integrally with the remainder of the second rod 4.
  • This wall 19 delimits the end part of the second rod 4 containing the product 6 and gives it a frustoconical shape tapering towards its end 20.
  • Lines of less resistance are preferably formed on the wall 19, by example in the form of longitudinal notches 21 which meet at the end 20 of the wall 19.
  • the upper surface of the bulge 3 has a section provided with lateral branches 22 which favorably exert pressure on the wall 19 in line with the notches 21 during this . progression of the first stem 1.
  • This variant unlike the previous one, does not allow the protrusion of the first rod 1 to penetrate without protection in the middle of the padded pad. 5, which may be an advantage for certain applications, for example for cleaning the ear canals, where the protrusion could be liable to injure the user if it were discovered during the operation.
  • the liquid 6 can fill the entire space available in the rod in new condition, if the piston causes from the start of its movement an increase in the volume defined by the wall 19. This provides good use of available space.
  • the product 6 does not completely fill the entire space available between the two rods 1, 4. In this way, it is certain that the forces tending to cause the end of the second rod 4 to break (either the cover 7 or the wall 19) are exerted by the bulge 3 of the first rod 1 or a protrusion 9 which it carries, and not by product 6 itself.
  • the introduction of the product 6 into the stick must be carried out under an inert atmosphere or under vacuum if the product 6 is liable to be degraded in contact with air which would otherwise be liable to be trapped with him in the stick.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geometry (AREA)
  • Hematology (AREA)
  • Physics & Mathematics (AREA)
  • Anesthesiology (AREA)
  • Epidemiology (AREA)
  • Vascular Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

The invention concerns a stick containing a liquid, pasty or gelled product (6) which the user can bring into contact with an absorbent material located at one end of said stick, comprising: a first stem (1), a second hollow stem (4) containing said product, (6), whereof one end is provided with an absorbent material (5; 11) and the other end receives said first stem (1); said first stem (1) capable of sliding inside said second stem (4) so as to push said product (6) towards said absorbent material (5; 11); said second stem (4) comprising at its end provided with an absorbent material (5; 11) closure means for preventing contact between the product (6) and the absorbent material (5; 11) before the stick is used. The invention is characterized in that it comprises means for rupturing said closure actuated by sliding the first stem (1) in the second stem (4).

Description

Bâtonnet renfermant un produit que l'utilisateur peut amener au contact d'un matériau absorbant. Rod containing a product that the user can bring into contact with an absorbent material.
L'invention concerne le domaine du conditionnement de produits à l'état liquide, pâteux ou gélifié, et de leur libération sur un matériau absorbant en vue de les rendre accessibles à un consommateur, par exemple pour leur application sur une surface.The invention relates to the field of packaging products in a liquid, pasty or gelled state, and their release onto an absorbent material in order to make them accessible to a consumer, for example for their application to a surface.
Les bâtonnets ouatés, communément appelés « cotons-tiges », sont d'un usage fréquent dans la vie quotidienne pour le nettoyage de parties corporelles, telles que les conduits auditifs, ou d'objets divers. Il est souvent nécessaire ou utile d'enduire la surface à nettoyer d'un produit à l'état liquide, pâteux ou gélifié tel qu'une solution antiseptique. On peut, à cet effet, tremper une extrémité ouatée du bâtonnet dans le récipient contenant le produit à appliquer sur la zone à traiter.Cotton swabs, commonly known as “cotton swabs”, are frequently used in daily life for cleaning body parts, such as ear canals, or various objects. It is often necessary or useful to coat the surface to be cleaned with a liquid, pasty or gelled product such as an antiseptic solution. For this purpose, it is possible to dip a padded end of the stick in the container containing the product to be applied to the area to be treated.
Les bâtonnets classiques nécessitent donc, pour ces modes d'utilisation, que le consommateur ait à sa disposition, en plus du bâtonnet, un récipient séparé renfermant une quantité relativement importante dudit produit, et ce même si la quantité à appliquer doit être minime. Cette situation est souvent peu commode en raison des multiples manipulations que doit effectuer l'utilisateur ; en particulier il y a toujours un risque de renverser le récipient.Conventional sticks therefore require, for these modes of use, that the consumer has at his disposal, in addition to the stick, a separate container containing a relatively large amount of said product, even if the amount to be applied must be minimal. This situation is often inconvenient due to the multiple manipulations that the user must perform; in particular there is always a risk of overturning the container.
On connaît des bâtonnets ouatés, décrits par exemple dans les documents WO-A-00/00147, ou WO-A-98/11852, dans lesquels le bâtonnet est creux et renferme du liquide tel qu'une solution antiseptique, un collyre... Ce liquide peut être expulsé vers une extrémité du bâtonnet pour en imprégner la partie ouatée, à l'aide d'une pression exercée manuellement par l'utilisateur. Une portion du bâtonnet peut, à cet effet, présenter un renflement jouant les rôles d'un réservoir de liquide augmentant la capacité du bâtonnet et d'une zone privilégiée pour l'exercice de la pression d'expulsion. L'autre extrémité du bâtonnet n'est pas munie d'un matériau absorbant, ou alors celui-ci n'est pas en communication avec l'intérieur du bâtonnet et reste sec. Cette deuxième configuration permet à l'utilisateur de faire précéder ou suivre la phase de nettoyage humide ou d'application d'un liquide d'une phase de nettoyage à sec ou d'absorption du liquide déposé en excès.Padded sticks are known, described for example in documents WO-A-00/00147, or WO-A-98/11852, in which the stick is hollow and contains liquid such as an antiseptic solution, an eye drop. This liquid can be expelled towards one end of the stick to impregnate the padded part thereof, using a pressure exerted manually by the user. A portion of the stick can, for this purpose, have a bulge playing the roles of a liquid reservoir increasing the capacity of the stick and a privileged area for the exercise of the expulsion pressure. The other end of the stick is not provided with an absorbent material, or it is not in communication with the interior of the stick and remains dry. This second configuration allows the user to precede or follow the wet cleaning phase or the application of a liquid with a dry cleaning phase or absorption of the liquid deposited in excess.
Ces dispositifs présentent les inconvénients suivants. En premier lieu, l'exercice d'une pression sur le bâtonnet est une opération difficile à doser. Une pression trop faible risque d'expulser une quantité de produit insuffisante en direction du matériau absorbant. A l'inverse, une pression trop brutale peut provoquer un afflux de produit tel que celui-ci risque d'être en partie éjecté du bâtonnet au lieu de venir doucement imprégner le matériau absorbant. Les caractéristiques dimensionnelles et mécaniques du tube du bâtonnet doivent être choisies avec soin pour limiter ces inconvénients, et on ne peut de toute façon pas éviter que l'utilisateur n'exécute l'opération avec un minimum d'attention. D'autre part, une simple pression exercée en un point donné du tube ne permet généralement pas une expulsion totale du produit contenu dans le bâtonnet. Il faut donc que l'utilisateur, soit exerce cette pression en déplaçant ses doigts serrés le Ibng du tube en direction du matériau absorbant, ce qui est peu commode, en particulier si le tube présente une rigidité élevée, soit se résigne à n'utiliser qu'une partie du produit. Le ménagement d'un réservoir sur le tube comme dans WO-A-00/00147 permet d'augmenter la quantité de produit que l'utilisateur peut expulser par une simple pression. Mais cette solution complique la fabrication du bâtonnet et augmente son encombrement, et ne permet de toute façon pas, là encore, d'utiliser aisément la totalité du produit contenu dans le bâtonnet.These devices have the following drawbacks. First, applying pressure to the stick is a difficult operation to dose. Too low a pressure may expel an insufficient quantity of product towards the absorbent material. Conversely, too sudden pressure can cause an influx of product such that it may be partly ejected from the instead of gently wetting the absorbent material. The dimensional and mechanical characteristics of the rod tube must be chosen with care to limit these drawbacks, and in any case it cannot be avoided that the user performs the operation with a minimum of attention. On the other hand, a simple pressure exerted at a given point on the tube generally does not allow total expulsion of the product contained in the stick. It is therefore necessary that the user either exerts this pressure by moving his tight fingers the Ibng of the tube in the direction of the absorbent material, which is inconvenient, in particular if the tube has a high rigidity, or is resigned to not using only part of the product. The provision of a reservoir on the tube as in WO-A-00/00147 makes it possible to increase the quantity of product which the user can expel by a simple pressure. But this solution complicates the manufacture of the stick and increases its size, and in any case does not allow, again, to easily use all of the product contained in the stick.
On connaît également par le document US-A-3 519 364 des dispositifs d'application en deux parties coulissant l'une dans l'autre. Une partie tubulaire est coiffée à l'une de ses extrémités par le matériau absorbant et renferme le produit à appliquer. Elle est obturée par un opercule. L'autre partie est une tige que l'utilisateur peut faire coulisser à l'intérieur de la partie tubulaire à la manière d'un piston, pour réduire le volume interne libre de cette dernière et repousser ainsi le produit vers le matériau absorbant, en. brisant l'opercule sous le seul effet de la pression du produit.Document US-A-3,519,364 also discloses application devices in two parts sliding one inside the other. A tubular part is capped at one of its ends by the absorbent material and contains the product to be applied. It is closed with a seal. The other part is a rod that the user can slide inside the tubular part like a piston, to reduce the free internal volume of the latter and thus push the product towards the absorbent material, . breaking the seal under the sole effect of the pressure of the product.
Dans ce dernier type de dispositif, un inconvénient est que l'expulsion du produit est tributaire de la rupture de l'opercule sous l'effet de la seule pression du produit. Lors du coulissement de la tige, l'utilisateur subit donc un « point dur » au moment où le produit exerce son effort sur l'opercule, tant que celui-ci n'est pas rompu. L'utilisateur. doit alors exercer un effort supérieur à celui qui a été jusque là nécessaire pour faire progresser la tige dans le tube en l'absence de compression du produit, et à celui qui lui sera ensuite nécessaire pour expulser totalement le produit. Cet effet de « point dur » est désagréable, et peut aussi conduire à une expulsion trop violente du produit hors du tube dans les instants qui suivent la rupture de l'opercule, si l'utilisateur ne réduit pas instantanément l'effort qu'il applique sur la tige. Le but de l'invention est de proposer un bâtonnet du type qui vient d'être décrit, exempt de cet inconvénient. A cet effet, l'invention a pour objet un bâtonnet renfermant un produit à l'état liquide, pâteux ou gélifié, que l'utilisateur peut amener au contact d'un matériau absorbant situé à une extrémité dudit bâtonnet, du type comprenant :In the latter type of device, a drawback is that the expulsion of the product is dependent on the rupture of the seal under the effect of the product pressure alone. When the rod slides, the user therefore undergoes a "hard point" when the product exerts its force on the cover, as long as the latter is not broken. The user. must then exert a force greater than that which has hitherto been necessary to advance the rod in the tube in the absence of compression of the product, and to that which will then be necessary for it to completely expel the product. This “hard point” effect is unpleasant, and can also lead to too violent expulsion of the product out of the tube in the moments following the rupture of the seal, if the user does not instantly reduce the effort he apply on the rod. The object of the invention is to propose a stick of the type which has just been described, free from this drawback. To this end, the subject of the invention is a stick containing a product in the liquid, pasty or gelled state, which the user can bring into contact with an absorbent material located at one end of said stick, of the type comprising:
- une première tige pleine ou creuse, munie dans ce dernier cas à l'une de ses extrémités d'un dispositif d'obturation ;- A first solid or hollow rod, provided in the latter case at one of its ends with a closure device;
- une deuxième tige creuse renfermant ledit produit, dont une extrémité est munie d'un matériau absorbant et dont l'autre extrémité accueille ladite première tige par son extrémité éventuellement munie d'un dispositif d'obturation ; - ladite première tige pouvant coulisser à l'intérieur de ladite deuxième tige de manière à repousser ledit produit vers ledit matériau absorbant par son extrémité ;- A second hollow rod containing said product, one end of which is provided with an absorbent material and the other end of which accommodates said first rod by its end, optionally provided with a closure device; - Said first rod being able to slide inside said second rod so as to push said product towards said absorbent material by its end;
- ladite deuxième tige comportant à son extrémité munie d'un matériau absorbant des moyens d'obturation empêchant le contact entre le produit et le matériau absorbant avant l'utilisation du bâtonnet ; caractérisé en ce qu'il comporte des moyens pour briser lesdits moyens d'obturation empêchant le contact entre le produit et le matériau absorbant commandés par le coulissement de la première tige dans la deuxième tige.- Said second rod comprising at its end provided with an absorbent material closing means preventing contact between the product and the absorbent material before the use of the stick; characterized in that it comprises means for breaking said closure means preventing contact between the product and the absorbent material controlled by the sliding of the first rod in the second rod.
Lesdits moyens empêchant le contact entre le produit et le matériau absorbant peuvent être constitués par un opercule coiffant la deuxième tige.Said means preventing contact between the product and the absorbent material can be constituted by a cover covering the second rod.
Lesdits moyens pour briser lesdits moyens d'obturation peuvent être constitués par une excroissance solidaire de ladite première tige.Said means for breaking said shutter means can be constituted by a protrusion integral with said first rod.
Lesdits moyens empêchent le contact entre le produit et le matériau absorbant peuvent être constitués par une paroi délimitant la partie terminale de la deuxième tige et présentant une forme tronconique s'effilant en direction de son extrémité.Said means prevent contact between the product and the absorbent material can be constituted by a wall delimiting the end part of the second rod and having a frustoconical shape tapering towards its end.
Ladite paroi comporte alors de préférence des lignes de moindre résistance.Said wall then preferably comprises lines of least resistance.
L'extrémité de ladite première tige peut alors posséder une section pourvue de branches destinées à exercer une pression sur la paroi au droit des lignes de moindre résistance.The end of said first rod may then have a section provided with branches intended to exert pressure on the wall in line with the lines of least resistance.
L'extrémité de ladite première tige non accueillie dans la deuxième tige, peut-être munie d'un matériau absorbant.The end of said first rod not received in the second rod, possibly provided with an absorbent material.
Ledit matériau absorbant se trouvant à une extrémité de la deuxième tige peut être de la ouate. Le matériau absorbant situé à l'extrémité de la première tige non accueillie par la deuxième tige peut être de la ouate.Said absorbent material located at one end of the second rod may be cotton wool. The absorbent material located at the end of the first rod not received by the second rod may be cotton wool.
Ledit matériau absorbant se trouvant à l'extrémité de la deuxième tige peut être un matériau spongieux. L'extrémité de la première tige non accueillie dans la deuxième tige peut comporter un renflement, et la deuxième tige peut comporter sur sa paroi extérieure une bague.Said absorbent material located at the end of the second rod may be a spongy material. The end of the first rod not received in the second rod may include a bulge, and the second rod may have on its outer wall a ring.
Ladite première tige peut contenir également un produit à l'état liquide, pâteux ou gélifié. Les produits contenus respectivement dans lesdites première et deuxième tiges peuvent être différents.Said first rod may also contain a product in the liquid, pasty or gelled state. The products contained respectively in said first and second rods may be different.
L'un au moins desdits produits peut être un produit antiseptique.At least one of said products can be an antiseptic product.
L'un au moins desdits produits peut être un produit à usage cosmétique. L'un au moins desdits produits peut être un produit de nettoyage.At least one of said products can be a product for cosmetic use. At least one of said products can be a cleaning product.
L'un au moins desdits produits peut être un parfum.At least one of said products can be a perfume.
L'un au moins desdits produits peut être une colle.At least one of said products can be an adhesive.
L'un au moins desdits produits peut être une peinture.At least one of said products can be a paint.
Comme on l'aura compris, l'invention consiste à prévoir des moyens assistant la rupture de l'opercule, ou de tout autre type de paroi fonctionnellement équivalente qui empêche le contact entre le produit et le matériau servant à son application lorsque le bâtonnet est à l'état neuf. L'expulsion du produit n'est ainsi plus tributaire de la seule pression exercée par le produit sur la paroi. La rupture de la paroi est ainsi réalisée avec une plus grande fiabilité. Surtout, elle est réalisable sans que l'utilisateur ne voie la progression de la tige trop sensiblement freinée, ce qui augmente le confort d'utilisation et peut rendre l'expulsion du produit plus progressive.As will be understood, the invention consists in providing means assisting the rupture of the cover, or of any other type of functionally equivalent wall which prevents contact between the product and the material used for its application when the stick is in new condition. The expulsion of the product is no longer dependent on the only pressure exerted by the product on the wall. The rupture of the wall is thus carried out with greater reliability. Above all, it is achievable without the user seeing the progression of the rod being too appreciably braked, which increases the comfort of use and can make the expulsion of the product more gradual.
Les utilisations de ces bâtonnets peuvent être très diverses, et seront fonction des natures du ou des produits qu'ils renferment et du matériau absorbant que le produit imprègne. Elles peuvent relever d'autres domaines que l'application de produits médicamenteux ou cosmétiques.The uses of these sticks can be very diverse, and will depend on the nature of the product or products they contain and the absorbent material that the product impregnates. They may fall within other fields than the application of medicinal or cosmetic products.
L'invention sera mieux comprise à la lecture de la description qui suit, donnée en référence aux figures annexées suivantes :The invention will be better understood on reading the description which follows, given with reference to the following appended figures:
- la figure 1 qui montre, vu en coupe, un exemple de bâtonnet ouaté selon l'invention, avant usage ; - la figure 2 qui montre le même bâtonnet prêt à être utilisé, l'une des extrémités ouatées étant imprégnée du produit initialement renfermé par le bâtonnet ;- Figure 1 which shows, seen in section, an example of a cotton swab according to the invention, before use; - Figure 2 which shows the same stick ready to be used, one of the padded ends being impregnated with the product initially contained by the stick;
- la figure 3 qui montre, vue en coupe, une variante de l'invention utilisant une extrémité de bâtonnet en un matériau absorbant spongieux ;- Figure 3 which shows, in section, a variant of the invention using a stick end made of a sponge absorbent material;
- la figure 4 qui montre, vue en coupe, une autre variante de l'invention dans laquelle les deux tiges du bâtonnet contiennent un produit à appliquer ;- Figure 4 which shows, in section, another variant of the invention in which the two rods of the stick contain a product to be applied;
- la figure 5 qui montre, vue en coupe, une autre variante de l'invention dans laquelle le coulissement d'une tige du bâtonnet dans l'autre s'effectue grâce à un repli de l'une des tiges sur elle-même ;- Figure 5 which shows, sectional view, another variant of the invention in which the sliding of a rod rod in the other is effected by a fold of one of the rods on itself;
- la figure 6 qui montre, vu en coupe longitudinale (fig.βa) et en coupe transversale selon Vlb-Vlb (fig.θb) un autre exemple de bâtonnet selon l'invention.- Figure 6 which shows, seen in longitudinal section (fig.βa) and in cross section along Vlb-Vlb (fig.θb) another example of a stick according to the invention.
Un premier exemple de mise en œuvre de l'invention est représenté sur la figure 1. Il s'agit d'un bâtonnet comportant un tampon d'ouate à ses deux extrémités, du type classiquement utilisé, par exemple, pour le nettoyage des conduits auditifs.A first example of implementation of the invention is shown in Figure 1. It is a stick with a cotton ball at its two ends, of the type conventionally used, for example, for cleaning conduits hearing.
Il comporte une première tige 1 généralement cylindrique, en un matériau tel que du polypropylène. Cette première tige 1 comporte à l'une de ses extrémités un premier tampon d'ouate 2 qui est fixé sur sa paroi extérieure par les moyens classiquement utilisés à cet effet. A son autre extrémité, la première tige 1 comporte un renflement 3 qui augmente légèrement son diamètre. Ce renflement 3 peut, comme représenté, être intégré de construction à la première tige 1 , qui est alors pleine, ou être constitué par un capuchon initialement indépendant de la première tige 1. Dans ce dernier cas, la première tige 1 peut être creuse, le capuchon jouant alors également le rôle d'un dispositif d'obturation de la tige 1. Le bâtonnet comporte une deuxième tige 4 impérativement creuse. L'une de ses extrémités est entourée d'un deuxième tampon d'ouate 5. L'autre extrémité accueille le renflement 3 de la première tige 1. Le diamètre du renflement 3 et le diamètre intérieur de la deuxième tige 4 sont choisis de telle sorte qu'ils autorisent un coulissement de la première tige 1 à l'intérieur de la deuxième tige 4, tout en maintenant une étanchéité de leur contact mutuel.' Cette étanchéité est nécessaire, car la deuxième tige 2 renferme un produit 6 à l'état liquide, pâteux ou gélifié, dont on désire qu'il vienne imprégner le deuxième tampon d'ouate 5 pendant l'utilisation du bâtonnet. Pour maintenir cette étanchéité à l'autre extrémité du bâtonnet avant son utilisation, et aussi pour éviter un contact entre le produit 6 et l'air ambiant si cela est nécessaire, un opercule 7 coiffe la deuxième tige 4, de manière à l'obturer. Le produit 6 peut, selon les utilisations envisagées, être un produit destiné à assister le nettoyage du conduit auditif par dissolution du cérumen, ou une solution antiseptique, ou tout autre produit liquide, pâteux ou gélifié à usage médical ou cosmétique par application corporelle locale. Le produit 6 peut aussi être une solution de nettoyage ou une autre substance à usage non médical, dont l'application peut être avantageusement réalisée à l'aide du tampon d'ouate 5.It comprises a first rod 1 generally cylindrical, made of a material such as polypropylene. This first rod 1 has at one of its ends a first wadding pad 2 which is fixed to its outer wall by the means conventionally used for this purpose. At its other end, the first rod 1 has a bulge 3 which slightly increases its diameter. This bulge 3 can, as shown, be integrated in construction with the first rod 1, which is then full, or be constituted by a cap initially independent of the first rod 1. In the latter case, the first rod 1 can be hollow, the cap then also playing the role of a device for closing the rod 1. The stick has a second rod 4 which is imperatively hollow. One of its ends is surrounded by a second cotton pad 5. The other end receives the bulge 3 of the first rod 1. The diameter of the bulge 3 and the internal diameter of the second rod 4 are chosen such that so that they allow sliding of the first rod 1 inside the second rod 4, while maintaining a seal of their mutual contact. ' This sealing is necessary, because the second rod 2 contains a product 6 in the liquid, pasty or gelled state, which it is desired for it to impregnate the second cotton ball 5 during the use of the stick. To maintain this seal at the other end of the stick before use, and also to avoid contact between the product 6 and the ambient air if necessary, a cover 7 covers the second rod 4, so as to close it . The product 6 may, depending on the uses envisaged, be a product intended to assist the cleaning of the ear canal by dissolution of cerumen, or an antiseptic solution, or any other liquid, pasty or gelled product for medical or cosmetic use by local body application. The product 6 can also be a cleaning solution or another substance for non-medical use, the application of which can advantageously be carried out using the cotton ball 5.
Selon l'invention, la première tige 1 comporte à son extrémité introduite dans la deuxième tige 4, une excroissance 9. Celle-ci a une longueur qui lui permet de venir au contact de l'opercule 7 lors du coulissement de la première tige 1 avant que le produit 6 ne vienne remplir la totalité de l'espace disponible entre le renflement 3 et l'opercule 7, ou au plus tard à ce moment précis.According to the invention, the first rod 1 has at its end introduced into the second rod 4, a protrusion 9. This has a length which allows it to come into contact with the cover 7 during the sliding of the first rod 1 before the product 6 comes to fill the entire space available between the bulge 3 and the cover 7, or at this precise moment at the latest.
Le bâtonnet est utilisé comme suit. L'utilisateur exerce une poussée sur la première tige 1 selon la flèche 8, de façon à faire pénétrer plus profondément la première tige 1 à l'intérieur de la deuxième tige 4 à la manière d'un piston. Sous l'effet de la pression exercée par l'excroissance 9, l'opercule 7 se rompt, et le produit 6 vient imprégner le deuxième tampon d'ouate 5. La figure 2 représente le bâtonnet après une pénétration complète de la première tige 1 dans la seconde tige 4 qui a provoqué une expulsion totale du produit 6 (on n'a pas représenté l'opercule 7 rompu sur la figure 2). Le produit 6 peut alors être appliqué à l'aide du deuxième tampon d'ouate 5 sur la zone à traiter.The stick is used as follows. The user pushes on the first rod 1 according to arrow 8, so as to make the first rod 1 penetrate more deeply inside the second rod 4 in the manner of a piston. Under the effect of the pressure exerted by the protrusion 9, the cover 7 breaks, and the product 6 impregnates the second wadding pad 5. FIG. 2 represents the stick after complete penetration of the first rod 1 in the second rod 4 which caused a total expulsion of the product 6 (we have not shown the cover 7 broken in Figure 2). The product 6 can then be applied using the second cotton ball 5 to the area to be treated.
Le premier tampon d'ouate 2, qui est resté sec, peut être utilisé pour enlever un excès de produit 6 étalé sur la zone traitée. Il peut aussi être utilisé avant le deuxième tampon 5 pour effectuer un pré-nettoyage à sec de la zone à traiter.The first cotton wool pad 2, which has remained dry, can be used to remove excess product 6 spread over the treated area. It can also be used before the second pad 5 to perform a dry pre-cleaning of the area to be treated.
Le matériau de la tige 4 doit être imperméable à ce produit 6. Là encore, le polypropylène est utilisable pour de nombreuses applications. Mais d'autres matériaux présentant une étanchéité au produit 6 et des caractéristiques mécaniques adaptées peuvent être utilisés.The material of the rod 4 must be impermeable to this product 6. Again, the polypropylene can be used for many applications. However, other materials presenting a seal to the product 6 and suitable mechanical characteristics can be used.
Par rapport aux bâtonnets renfermant un produit des types précédemment connus, le bâtonnet selon l'invention présente notamment les avantages suivants.Compared to sticks containing a product of the previously known types, the stick according to the invention has the following advantages in particular.
L'expulsion du liquide s'effectue grâce à un mouvement de translation, ce qui est plus simple à contrôler par l'utilisateur que le mouvement de pression habituel dans les bâtonnets de WO-A-00/00147 ou WO-A-98/11852. D'autre part, ce mouvement de translation, lorsqu'il a été exécuté jusqu'à pénétration complète de la première tige 1 dans la deuxième tige 4, permet l'expulsion totale du produit 6 hors de la deuxième tige 4. L'utilisateur n'a aucune difficulté à réaliser et à vérifier cette expulsion totale puisqu'il lui suffit à cet effet de contrôler l'enfoncement de la première tige 1. Il lui est même possible, s'il le désire, de n'expulser lors d'au moins la première utilisation du bâtonnet, qu'une partie du produit 6. Des graduations inscrites sur la première tige 1 peuvent donner une indication sur la quantité de produit 6 qui a été effectivement expulsée. Pour qu'un tel mode d'utilisation soit possible, il faut bien entendu que le produit 6 ait une consistance qui lui permette de demeurer dans le bâtonnet, même après la rupture de l'opercule 7 éventuellement présent. Il faut aussi que ses propriétés ne soient pas trop rapidement affectées par la possibilité d'exposition à l'air entraînée par la rupture de l'opercule 7. Pour cette raison, une telle utilisation fractionnée peut ne pas être conseillée si, par exemple, le produit 6 doit avoir des propriétés aseptiques lors de son usage.The liquid is expelled by means of a translational movement, which is easier to control by the user than the usual pressure movement in the sticks of WO-A-00/00147 or WO-A-98 / 11852. On the other hand, this translational movement, when it has been carried out until complete penetration of the first rod 1 into the second rod 4, allows the total expulsion of the product 6 outside the second rod 4. The user has no difficulty in achieving and verifying this total expulsion since it is sufficient for this purpose to control the penetration of the first rod 1. It is even possible for him, s '' he wishes, to expel during at least the first use of the stick, only a part of the product 6. Graduations written on the first rod 1 can give an indication of the amount of product 6 which has actually been expelled. For such a mode of use to be possible, it is understood that the product 6 has a consistency which allows it to remain in the stick, even after the rupture of the cover 7 possibly present. Its properties must also not be too quickly affected by the possibility of exposure to air caused by the rupture of the seal 7. For this reason, such fractional use may not be advisable if, for example, product 6 must have aseptic properties during its use.
D'autre part, par rapport aux bâtonnets de US-A-3 519 364, le confort et la facilité de l'expulsion du produit 6 sont encore augmentés. En effet la concentration de l'effort appliqué à l'opercule 7 sur la zone de contact entre l'opercule 7 et l'excroissance 9, et non plus sur l'ensemble de la surface de l'opercule 7, rend la rupture de l'opercule 7 plus facile, car nécessitant un effort moindre. L'utilisateur n'a donc pas à augmenter sensiblement la force qu'il applique à la tige 1 au moment où la rupture de l'opercule 7 doit se produire. La progression de la tige 1 s'effectue donc sans à-coup, et l'expulsion du produit 6 peut être facilement contrôlée par l'utilisateur.On the other hand, compared to the sticks of US-A-3,519,364, the comfort and the ease of expelling the product 6 are further increased. Indeed, the concentration of the force applied to the cover 7 on the contact zone between the cover 7 and the protrusion 9, and no longer on the entire surface of the cover 7, makes the rupture of the cover 7 is easier because it requires less effort. The user therefore does not have to significantly increase the force which he applies to the rod 1 at the moment when the rupture of the cover 7 must occur. The progression of the rod 1 is therefore carried out smoothly, and the expulsion of the product 6 can be easily controlled by the user.
Des reliefs ou des moletages ménagés sur les surfaces des tiges 1 , 4 peuvent faciliter la préhension et la manipulation du bâtonnet par l'utilisateur. La variante de l'invention représentée sur la figure 3 se distingue de la précédente en ce que : le tampon ouaté 2 de la première tige 1 a été supprimé ; la première tige 1 ne comporte donc pas de matériau absorbant ; et le tampon ouaté 5 de la deuxième tige 4 a été remplacé par un matériau spongieux 10 auquel on peut conférer si nécessaire une forme et des dimensions bien définies.Reliefs or knurling formed on the surfaces of the rods 1, 4 can facilitate the gripping and handling of the stick by the user. The variant of the invention shown in Figure 3 differs from the previous one in that: the padded pad 2 of the first rod 1 has been removed; the first rod 1 therefore does not include any absorbent material; and the padded pad 5 of the second rod 4 has been replaced by a spongy material 10 which can be given, if necessary, a well-defined shape and dimensions.
Cette dernière caractéristique est particulièrement adaptée lorsqu'on désire appliquer le produit 6 sur une petite surface bien délimitée. Ce peut être le cas pour un certain nombre d'usages, médicaux ou non-médicaux. Le produit 6 peut, par exemple, être une peinture, du vernis à ongles, une colle.This last characteristic is particularly suitable when it is desired to apply the product 6 to a small, well-defined area. This can be the case for a number of uses, medical or non-medical. The product 6 can, for example, be a paint, nail varnish, an adhesive.
•Un renflement 11 ménagé à l'extrémité libre de la première tige 1 et une bague 12 ménagée autour de la deuxième tige 4 peuvent, comme représenté, faciliter la préhension et l'utilisation du dispositif, à la manière d'une seringue. L'utilisateur peut ainsi réaliser d'une seule main et de manière simultanée les opérations d'imprégnation du matériau spongieux 10 et d'application du produit 6 sur la surface à traiter. • A bulge 11 formed at the free end of the first rod 1 and a ring 12 formed around the second rod 4 can, as shown, facilitate gripping and use of the device, in the manner of a syringe. The user can thus carry out with one hand and simultaneously the operations of impregnating the spongy material 10 and applying the product 6 to the surface to be treated.
Une autre utilisation envisageable du dispositif peut être le conditionnement d'échantillons de parfum, pour laquelle divers types de matériaux absorbants peuvent être employés.Another possible use of the device can be the packaging of perfume samples, for which various types of absorbent materials can be used.
Au lieu d'un tampon ouaté 5 ou d'un matériau spongieux 10, on peut utiliser de façon générale tout matériau susceptible de retenir temporairement le produit 6, par exemple en vue de son application sur une surface. En variante, si la première tige 1 est creuse, on peut envisager de la remplir avec un produit 6', afin de constituer une réserve supplémentaire dudit produit 6 contenu dans la deuxième tige 4. La figure 4 montre une telle variante. La première tige 1 est obturée par un opercule 13 à son extrémité engagée dans la deuxième tige 4, et comporte, à son autre extrémité, un renflement 14 formant réservoir. Ici, l'excroissance 9 est placée à la périphérie du renflement 3 de la première tige 1 , et non en son centre, de manière à autoriser la présence de l'opercule 13. Ainsi, après avoir entièrement expulsé le produit 6 de la deuxième tige 4 comme précédemment expliqué, l'utilisateur peut expulser le produit 6' se trouvant dans la première tige 1 par une pression sur le renflement 15, comme il est connu dans l'art antérieur. L'opercule 13 de la première tige 1 ne doit pas être endommagé lors de la première phase d'utilisation du bâtonnet, de manière à ce que la première tige 1 puisse jouer son rôle de piston sur le produit 6 contenu dans la deuxième tige 4. Il est préférable que l'opercule 13 de la première tige 1 ne vienne pas au contact de la paroi interne de la deuxième tige 4 lors de l'opération d'enfoncement. A cet effet, l'opercule 13 peut être collé dans un logement 16 ménagé sur la surface supérieure du renflement 3, ce qui a également l'avantage de laisser de la place disponible pour ménager l'excroissance 9.Instead of a padded pad 5 or a spongy material 10, one can generally use any material capable of temporarily retaining the product 6, for example for its application on a surface. As a variant, if the first rod 1 is hollow, it can be envisaged to fill it with a product 6 ′, in order to constitute an additional reserve of said product 6 contained in the second rod 4. FIG. 4 shows such a variant. The first rod 1 is closed by a cover 13 at its end engaged in the second rod 4, and comprises, at its other end, a bulge 14 forming a reservoir. Here, the protrusion 9 is placed at the periphery of the bulge 3 of the first rod 1, and not at its center, so as to allow the presence of the cover 13. Thus, after having entirely expelled the product 6 from the second rod 4 as previously explained, the user can expel the product 6 ′ located in the first rod 1 by pressing on the bulge 15, as is known in the prior art. The cover 13 of the first rod 1 must not be damaged during the first phase of use of the stick, so that the first rod 1 can play its role of piston on the product 6 contained in the second rod 4 It is preferable that the cover 13 of the first rod 1 does not come into contact with the internal wall of the second rod 4 during the driving operation. To this end, the cover 13 can be glued in a housing 16 formed on the upper surface of the bulge 3, which also has the advantage of leaving space available to provide the protrusion 9.
En variante, d'autres moyens d'expulsion du produit 6' hors de la première tige 1 pourraient être envisagés. Ceux-ci pourraient éventuellement permettre une expulsion du produit contenu dans la première tige 1 par son extrémité opposée à celle pénétrant dans la deuxième tige 4. Il est également concevable que les deux tiges 1 , 4 contiennent chacune un produit différent, lesdits produits 6, 6' devant ou pouvant être utilisés de façon successive, de manière, par exemple, à être mélangés sur leur zone d'application après avoir été stockés séparément jusqu'à l'utilisation du bâtonnet.As a variant, other means of expelling the product 6 ′ from the first rod 1 could be envisaged. These could possibly allow an expulsion of the product contained in the first rod 1 by its end opposite to that penetrating into the second rod 4. It is also conceivable that the two rods 1, 4 each contain a different product, said products 6, 6 'in front of or which can be used successively, so as, for example, to be mixed on their application zone after having been stored separately until the use of the stick.
La variante de l'invention représentée sur la figure 5 se distingue des précédentes en ce que le coulissement de la première tige 1 à l'intérieur de la deuxième tige 4 s'effectue de la façon suivante. L'extrémité 16 de la deuxième tige 4 opposée à .l'extrémité ouatée est solidarisée à la première tige, de préférence de manière étanche. Au moins une portion 17 de la longueur de la deuxième tige 4 présente une certaine souplesse et est conformée « en accordéon », de manière à pouvoir se replier sur elle-même lorsque l'utilisateur exerce sur la deuxième tige 4 un effort, dirigé selon la flèche 18, tendant à rapprocher les deux extrémités de la deuxième tige 4. Cet effort et ce repli de la deuxième tige 4 sur elle-même ont pour effet de réduire le volume disponible pour le produit 6 dans la deuxième tige 4 grâce à un rapprochement du renflement 3 et de l'extrémité de la deuxième tige 4 portant le deuxième tampon ouaté 5, et de permettre ainsi l'expulsion du produit 6 après la rupture de l'opercule 7 par l'excroissance 9.The variant of the invention shown in FIG. 5 differs from the previous ones in that the sliding of the first rod 1 inside the second rod 4 is carried out as follows. The end 16 of the second rod 4 opposite to the padded end is secured to the first rod, preferably in leaktight manner. At least a portion 17 of the length of the second rod 4 has a certain flexibility and is shaped "in accordion", so as to be able to fold back on itself when the user exerts on the second rod 4 a force, directed according to the arrow 18, tending to bring the two ends of the second rod 4 closer together. This force and this folding of the second rod 4 on itself have the effect of reducing the volume available for the product 6 in the second rod 4 thanks to a approximation of the bulge 3 and the end of the second rod 4 carrying the second padded pad 5, and thus allowing the expulsion of the product 6 after the rupture of the cover 7 by the protrusion 9.
Bien entendu, les différentes configurations du dispositif selon l'invention qui ont été décrites ne sont que des exemples, dont les différentes caractéristiques peuvent être remplacées par des caractéristiques fonctionnellement équivalentes. En particulier, la présence du renflement 3 à l'extrémité de la première tige 1 n'est pas strictement obligatoire, si les caractéristiques dimensionnelles respectives des tiges 1 et 4 et la consistance du produit 6 permettent d'obtenir une étanchéité du bâtonnet jugée suffisante, à l'état non utilisé et pendant son utilisation.Of course, the various configurations of the device according to the invention which have been described are only examples, the different characteristics of which can be replaced by functionally equivalent characteristics. In particular, the presence of the bulge 3 at the end of the first rod 1 is not strictly compulsory, if the respective dimensional characteristics of the rods 1 and 4 and the consistency of the product 6 make it possible to obtain a tightness of the rod deemed sufficient. , in unused condition and during use.
Une autre variante de l'invention est représentée sur la figure 6. Dans cette variante, les moyens d'obturation de la deuxième tige 4 ne sont plus constitués par un opercule, mais par une paroi 19 venue de matière avec le restant de la deuxième tige 4. Cette paroi 19 délimite la partie terminale de la deuxième tige 4 renfermant le produit 6 et lui confère une forme tronconique s'effilant en direction de son extrémité 20. Des lignes de moindre résistance sont de préférence ménagées sur la paroi 19, par exemple sous la forme d'entailles longitudinales 21 qui se rejoignent au niveau de l'extrémité 20 de la paroi 19. De cette façon, lorsque l'utilisateur enfonce la première tige 1 dans la deuxième tige 4, le renflement 3 exerce sur la paroi 19 une force qui tend à l'élargir, et ainsi la paroi 19 se brise, selon les entailles 21 si celles-ci sont présentes, laissant échapper le produit 6 qui va imprégner le tampon ouaté 5.Another variant of the invention is shown in FIG. 6. In this variant, the means for closing off the second rod 4 are no longer constituted by a cover, but by a wall 19 made integrally with the remainder of the second rod 4. This wall 19 delimits the end part of the second rod 4 containing the product 6 and gives it a frustoconical shape tapering towards its end 20. Lines of less resistance are preferably formed on the wall 19, by example in the form of longitudinal notches 21 which meet at the end 20 of the wall 19. In this way, when the user pushes the first rod 1 into the second rod 4, the bulge 3 exerts on the wall 19 a force which tends to widen it, and thus the wall 19 breaks, according to the notches 21 if these are present, letting escape the product 6 which will impregnate the padded pad 5.
De préférence, comme représenté sur la figure 6b, la surface supérieure du renflement 3 possède une section pourvue de branches latérales 22 qui exercent de façon privilégiée une pression sur la paroi 19 au droit des entailles 21 lors.de la progression de la première tige 1.Preferably, as shown in FIG. 6b, the upper surface of the bulge 3 has a section provided with lateral branches 22 which favorably exert pressure on the wall 19 in line with the notches 21 during this . progression of the first stem 1.
Cette variante, contrairement à la précédente, ne laisse pas pénétrer d'excroissance de la première tige 1 sans protection au milieu du tampon ouaté 5, ce qui peut constituer un avantage pour certaines applications, par exemple pour le nettoyage des conduits auditifs, où l'excroissance pourrait être susceptible de blesser l'utilisateur si elle venait à être découverte lors de l'opération. Dans cette variante, le liquide 6 peut remplir la totalité de l'espace disponible dans le bâtonnet à l'état neuf, si le piston provoque dès le début de son mouvement une augmentation du volume défini par la paroi 19. Cela procure une bonne utilisation de l'espace disponible.This variant, unlike the previous one, does not allow the protrusion of the first rod 1 to penetrate without protection in the middle of the padded pad. 5, which may be an advantage for certain applications, for example for cleaning the ear canals, where the protrusion could be liable to injure the user if it were discovered during the operation. In this variant, the liquid 6 can fill the entire space available in the rod in new condition, if the piston causes from the start of its movement an increase in the volume defined by the wall 19. This provides good use of available space.
Dans tous les exemples d'application de l'invention qui ont été décrits, il est préférable que le produit 6 ne remplisse pas tout à fait la totalité de l'espace disponible entre les deux tiges 1 , 4. De cette façon, il est certain que les efforts tendant à faire se rompre l'extrémité de la deuxième tige 4 (soit l'opercule 7, soit la paroi 19) sont exercés par le renflement 3 de la première tige 1 ou une excroissance 9 qu'il porte, et non par le produit 6 lui-même. De préférence, l'introduction du produit 6 dans le bâtonnet doit s'effectuer sous atmosphère inerte ou sous vide si le produit 6 est susceptible d'être dégradé au contact de l'air qui, sans cela, serait susceptible d'être emprisonné avec lui dans le bâtonnet.In all the examples of application of the invention which have been described, it is preferable that the product 6 does not completely fill the entire space available between the two rods 1, 4. In this way, it is certain that the forces tending to cause the end of the second rod 4 to break (either the cover 7 or the wall 19) are exerted by the bulge 3 of the first rod 1 or a protrusion 9 which it carries, and not by product 6 itself. Preferably, the introduction of the product 6 into the stick must be carried out under an inert atmosphere or under vacuum if the product 6 is liable to be degraded in contact with air which would otherwise be liable to be trapped with him in the stick.
L'homme du métier pourra également aisément combiner des caractéristiques prélevées dans les différentes configurations décrites. Enfin, il va de soi que les exemples d'usages du dispositif selon l'invention qui ont été cités ne sont en aucun cas limitatifs. Those skilled in the art can also easily combine characteristics taken from the different configurations described. Finally, it goes without saying that the examples of uses of the device according to the invention which have been cited are in no way limiting.

Claims

REVENDICATIONS
1. Bâtonnet renfermant un produit (6) à l'état liquide, pâteux ou gélifié, que l'utilisateur peut amener au contact d'un matériau absorbant situé à une extrémité dudit bâtonnet, du type comprenant :1. Rod containing a product (6) in the liquid, pasty or gelled state, which the user can bring into contact with an absorbent material situated at one end of said rod, of the type comprising:
- une première tige (1) pleine ou creuse, munie dans ce dernier cas à l'une de ses extrémités d'un dispositif d'obturation ;- A first rod (1) full or hollow, provided in the latter case at one of its ends with a closure device;
- une deuxième tige (4) creuse renfermant ledit produit (6), dont une extrémité est munie d'un matériau absorbant (5 ; 11 ) et dont l'autre extrémité accueille ladite première tige (1 ) par son extrémité éventuellement munie d'un dispositif d'obturation ;- A second hollow rod (4) containing said product (6), one end of which is provided with an absorbent material (5; 11) and the other end of which receives said first rod (1) via its end which may be provided with a shutter device;
- ladite première tige (1) pouvant coulisser à l'intérieur de ladite deuxième tige (4) de manière à repousser ledit produit (6) vers ledit matériau absorbant (5 ; 11 ) par son extrémité (3) ; - ladite deuxième tige (4) comportant à son extrémité munie d'un matériau absorbant (5 ; 11) des moyens d'obturation empêchant le contact entre le produit (6) et le matériau absorbant (5 ; 11) avant l'utilisation du bâtonnet ; caractérisé en ce qu'il comporte des moyens pour briser lesdits moyens d'obturation empêchant le contact entre le produit (6) et le matériau absorbant (5 ; 11) commandés par le coulissement de la première tige (1) dans la deuxième tige (4).- said first rod (1) being able to slide inside said second rod (4) so as to push said product (6) towards said absorbent material (5; 11) by its end (3); - Said second rod (4) comprising at its end provided with an absorbent material (5; 11) closing means preventing contact between the product (6) and the absorbent material (5; 11) before the use of the stick; characterized in that it comprises means for breaking said closure means preventing contact between the product (6) and the absorbent material (5; 11) controlled by the sliding of the first rod (1) in the second rod ( 4).
2. Bâtonnet selon la revendication 1 , caractérisé en ce que lesdits moyens empêchant le contact entre le produit (6) et le matériau absorbant (5 ; 11) sont constitués par un opercule (7) coiffant la deuxième tige (4). 2. Rod according to claim 1, characterized in that said means preventing contact between the product (6) and the absorbent material (5; 11) consist of a cover (7) covering the second rod (4).
3. Bâtonnet selon la revendication 1 ou 2, caractérisé en ce que lesdits moyens pour briser lesdits moyens d'obturation sont constitués par une excroissance (9) solidaire de ladite première tige (1 ).3. Rod according to claim 1 or 2, characterized in that said means for breaking said closure means consist of a protrusion (9) integral with said first rod (1).
4. Bâtonnet selon la revendication 1, caractérisé en ce que lesdits moyens empêchent le. contact entre le produit (6) et le matériau absorbant (5 ; 11) sont constitués par une paroi (19) délimitant la partie terminale de la deuxième tige (4) et présentant une forme tronconique s'effilant en direction de son extrémité (20).4. Rod according to claim 1, characterized in that said means prevent it. contact between the product (6) and the absorbent material (5; 11) consist of a wall (19) delimiting the end part of the second rod (4) and having a frustoconical shape tapering towards its end (20 ).
5. Bâtonnet selon la revendication 4, caractérisé en ce que ladite paroi (19) comporte des lignes de moindre résistance (21). 5. Rod according to claim 4, characterized in that said wall (19) has lines of least resistance (21).
6. Bâtonnet selon la revendication 5, caractérisé en ce que l'extrémité6. Rod according to claim 5, characterized in that the end
(3) de ladite première tige possède une section pourvue de branches (22) destinées à exercer une pression sur la paroi (19) au droit des lignes de moindre résistance (21). (3) of said first rod has a section provided with branches (22) intended to exert pressure on the wall (19) in line with the lines of least resistance (21).
7. Bâtonnet selon l'une des revendications 1 à 6, caractérisé en ce que l'extrémité de ladite première tige (1) non accueillie dans la deuxième tige (4) est munie d'un matériau absorbant (2).7. Rod according to one of claims 1 to 6, characterized in that the end of said first rod (1) not received in the second rod (4) is provided with an absorbent material (2).
8. Bâtonnet selon l'une des revendications 1 à 7, caractérisé en ce que ledit matériau absorbant (5) se trouvant à une extrémité de la deuxième tige (4) est de la ouate.8. Rod according to one of claims 1 to 7, characterized in that said absorbent material (5) located at one end of the second rod (4) is wadding.
9. Bâtonnet selon les revendications 7 et 8, caractérisé en ce que le matériau absorbant (2) situé à l'extrémité de la première tige (1) non accueillie par la deuxième tige (4) est de la ouate.9. A stick according to claims 7 and 8, characterized in that the absorbent material (2) located at the end of the first rod (1) not received by the second rod (4) is wadding.
10. Bâtonnet selon l'une des revendications 1 à 7 et 9, caractérisé en ce que ledit matériau absorbant (11) se trouvant à l'extrémité de la deuxième tige10. Rod according to one of claims 1 to 7 and 9, characterized in that said absorbent material (11) being at the end of the second rod
(4) est un matériau spongieux.(4) is a spongy material.
11. Bâtonnet selon l'une des revendications 1 à 5, 8 et 10, caractérisé en ce que l'extrémité de la première tige (1) non accueillie dans la deuxième tige (4) comporte un renflement (12), et en ce que la deuxième tige (4) comporte sur sa paroi extérieure une bague (13).11. Rod according to one of claims 1 to 5, 8 and 10, characterized in that the end of the first rod (1) not received in the second rod (4) has a bulge (12), and in that that the second rod (4) has on its outer wall a ring (13).
12. Bâtonnet selon l'une des revendications 1 à 11 , caractérisé en ce que ladite première tige (1) contient également un produit (6') à l'état liquide, pâteux ou gélifié.12. Rod according to one of claims 1 to 11, characterized in that said first rod (1) also contains a product (6 ') in the liquid, pasty or gelled state.
13. Bâtonnet selon la revendication 12, caractérisé en ce que les produits (6, 6') contenus respectivement dans lesdites première (1 ) et deuxième13. Rod according to claim 12, characterized in that the products (6, 6 ') contained respectively in said first (1) and second
(4) tiges sont différents.(4) rods are different.
14. Bâtonnet selon l'une des revendications 1 à 13, caractérisé en ce que l'un au moins desdits produits (6, 6') est un produit antiseptique.14. Rod according to one of claims 1 to 13, characterized in that at least one of said products (6, 6 ') is an antiseptic product.
15. Bâtonnet selon l'une des revendications 1 à 13, caractérisé en ce que l'un au moins desdits produits (6, 6') est un produit à usage cosmétique.15. Rod according to one of claims 1 to 13, characterized in that at least one of said products (6, 6 ') is a product for cosmetic use.
16. Bâtonnet selon l'une des revendications 1 à 13, caractérisé en ce que l'un au moins desdits produits (6, 6') est un produit de nettoyage.16. Rod according to one of claims 1 to 13, characterized in that at least one of said products (6, 6 ') is a cleaning product.
17. Bâtonnet selon l'une des revendications 1 à 13, caractérisé en ce que l'un au moins desdits produits (6, 6') est un parfum. 17. Stick according to one of claims 1 to 13, characterized in that at least one of said products (6, 6 ') is a perfume.
18. Bâtonnet selon l'une des revendications 10 à 13, caractérisé en ce que l'un au moins desdits produits (6, 6') est une colle.18. Rod according to one of claims 10 to 13, characterized in that at least one of said products (6, 6 ') is an adhesive.
19. Bâtonnet selon l'une des revendications 10 à 3, caractérisé en ce que l'un au moins desdits produits (6, 6') est une peinture. 19. Rod according to one of claims 10 to 3, characterized in that at least one of said products (6, 6 ') is a paint.
EP02795353A 2001-11-02 2002-10-29 Stick containing a product which the user can bring into contact with an absorbent material Withdrawn EP1446186A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0114232A FR2831840B1 (en) 2001-11-02 2001-11-02 STICK CONTAINING A PRODUCT THAT THE USER CAN BRING IN CONTACT WITH AN ABSORBENT MATERIAL
FR0114232 2001-11-02
PCT/FR2002/003718 WO2003037422A1 (en) 2001-11-02 2002-10-29 Stick containing a product which the user can bring into contact with an absorbent material

Publications (1)

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EP1446186A1 true EP1446186A1 (en) 2004-08-18

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US (1) US20050049538A1 (en)
EP (1) EP1446186A1 (en)
JP (1) JP2005507289A (en)
FR (1) FR2831840B1 (en)
WO (1) WO2003037422A1 (en)

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Also Published As

Publication number Publication date
WO2003037422A1 (en) 2003-05-08
FR2831840A1 (en) 2003-05-09
US20050049538A1 (en) 2005-03-03
JP2005507289A (en) 2005-03-17
FR2831840B1 (en) 2005-01-21

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