Classifications

• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46B—BRUSHES
  • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
  • A46B11/0072—Details
  • A46B11/0079—Arrangements for preventing undesired leakage or dispensing
• • A—HUMAN NECESSITIES
  • A46—BRUSHWARE
  • A46B—BRUSHES
  • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
  • A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
  • A46B11/002—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means
  • A46B11/0041—Flexible or deformable reservoirs, e.g. resilient bulbs, compressible tubes

Definitions

• the present invention relates to a brushing device in particular for teeth with toothpaste reservoir, or other product, this device being for single use and disposable after use.
• a toothbrush comprising a brushing head mounted on a dispensing cannula fixed to the threaded end of a toothpaste reservoir constituting a gripping handle, this reserve being of capacity adapted to receive several doses of toothpaste and consisting of a tube of commercial paste.
• the cannula is provided with an internal channel communicating on the one hand with a nozzle which it comprises at the end and on the other hand with the reserve of toothpaste.
• the nozzle of the cannula is in relation to an orifice made in the brushing head and opening out at the level of the bristles of the head.
• the dough tank is made of flexible material deformable by pressure.
• the brushing head when brushing the teeth, cannot remain constantly in the axis of the reservoir. In other words, the brushing movement which the user impri ⁇ me to the reservoir is largely absorbed. by the deformation of this reservoir and cannot therefore be communicated correctly to the brushing head. This results in poor brushing of the teeth.
• the cannulas of this type of brush are of reduced lengths and are completely covered by the brushing head. Because of this configuration, the reservoir is in the immediate vicinity of the brushing head and is caused to penetrate the mouth of the user and risks injuring the gums and / or the internal faces of the cheeks as well as the enamel of the teeth.
• the reservoir since the reservoir has a notable section, its penetration into the mouth of the user is thereby limited. Thus it is difficult to reach with the brushing head the anterior regions of the jaws.
• the toothbrush of the type comprising a cannula f.ixed by screwing to the end of a tube of dough constituting reservoir and grip handle and a brushing head mounted on the cannula also has the disadvantage of being a high cost. This disadvantage, added to those previously mentioned, has led those skilled in the art to produce disposable toothbrushes to seek other solutions.
• the brushing head linked to this handle comprises, above the bristles, a cavity into which a dose of toothpaste is introduced.
• This cavity communicates with the bristle region of the brush via an orifice made in the thickness of the head and is covered by a flexible wall capable of being deformed by pressure in the cavity, in order to expel * the toothpaste towards the bristles of the brush.
• the Applicant has also observed that the problem of maintaining the brush head and the cannula in the axis of the reservoir when brushing the teeth is largely solved if a short length reservoir is used or low capacity.
• the present invention therefore relates to a brushing device for disposable single-use teeth after use, comprising a flexible reservoir of toothpaste or other product constituting grip handle extended by a rigid dispensing cannula, provided with an internal orifice, longitudinal, in relation on the one hand with the reservoir and on the other hand with a nozzle of the cannula which is covered by a brush head mounted on the cannula and provided with a hole opening into the region of the bristles and coming into relation with the nozzle of the cannula so that by pressure of the reservoir the dose of paste which it contains is expelled towards the bristles of the brush.
• a brushing device in particular for the teeth, is essentially characterized in that:
• the cannula at its end opposite the reservoir includes a rigid, disc-shaped collar 7, the diameter of the collar being greater than the diameter of the cannula,
• the reservoir is formed from a flexible tubular sheath fixed by one of its ends to the collar,
• the reservoir the capacity of which is limited to a single dose, has a length such that it can be pressed entirely between the thumb and forefinger of the user's hand so that the user by his thumb and forefinger brings the front part of the flexible sheath constituting the reservoir against the internal face of the flange 7 so as to ensure the a blocageial blocking of the cannula relative to the reservoir,
• the cannula has a greater length than that of the reservoir
• the brush head is mounted on the end portion of the cannula and is moved away from the collar 7 and therefore from the reservoir by a sufficient interval so that it can be introduced to the ends of the jaws without the reservoir entering the user's mouth.
• FIG. 1 is a front view of a toothbrush according to the invention
• - fig. 2 is a view in longitudinal section of a toothbrush according to the invention.
• - fig. 3 and 4 are cross-sectional views at the level of the brushing head of a first embodiment of the toothbrush.
• - fig. 5 is a partial longitudinal sectional view of a toothbrush.
• - fig. 6 is a sectional view of a protective capsule for the bristles of the head.
• the brushing device in particular for teeth, disposable, disposable after use, comprises a flexible reservoir 1 of toothpaste constituting grip handle extended axially by a rigid paste dispensing cannula 4, provided with a longitudinal internal orifice 8 in relation on the one hand with the reservoir 1 and on the other hand with a nozzle 5 made radially at the end of said cannula which is covered by a brush head 2 mounted on the cannula 4 and provided with a bore 6 opening into the bristle region 3 of the head 2 and coming into relation with the nozzle 5 of the cannula 4 so that by pressure from the reservoir the dose of paste which it contains is expelled towards the bristles of the brush.
• the constituent elements of the toothbrush are made of synthetic material of any suitable type.
• the cannula 4 at its end opposite the reservoir has a collar 7 in the form of a circular disc.
• This circular disc-shaped collar develops perpendicular to the longitudinal axis of the caritile.
• the diameter of the flange 7 is larger than that
• the diameter of the collar is equal to or close to two centimeters while the external diameter of the cannula is equal to or close to 0.6 centimeters.
• the cannula 4 has a cross section in the form of a ring.
• the reservoir is formed from a tubular sheath, for example cylindrical, flexible, tightly fixed by one of its ends to the flange 7 using "any suitable means and technique.
• the capacity of the reservoir is such that the latter contains only a single dose of toothpaste.
• the capacity of the tank is between two and four cm - * - ** .
• this reservoir is such that it can be fully pressed between the thumb and forefinger of the user's hand so that the user by his thumb and forefinger brings the front part of the sheath flexible constituting the reservoir against the internal face of the collar 7, this face internal being that which with the internal face of the sheath defines the volume of the reservoir.
• a rigid lug 13 of suitable shape can be fixed to the collar 7 which develops in the tank, parallel to the axis of the said tank against which the user by pressing with his fingers will bring the sheath constituting the tank .
• This tab may be integral with the collar 7 and may be fixed by one of its ends to the perimeter edge of said collar 7.
• This tab 13 may advantageously be bent along an arc of circumference of increasing radius from its rooting zone at the flange to its distal end so as to follow the geometry of the reservoir 1.
• the cannula 4 has a length greater than that of the reservoir 1 and the brushing head 2 is mounted on the end portion of the cannula, that is to say that located at a distance from the collar 7.
• the head 2 is spaced from the flange 7 and the reservoir 1 by a sufficient interval so that it can be introduced to the ends of the jaws without the reservoir entering the mouth of the user and constituting a discomfort.
• This interval is at least equal to or close to one and a half times the length of the head.
• the terminal portion of the cannula occupies substantially one third of the length of the latter.
• the value of this interval is at least equal to three centimeters and the length of the cannula is at least equal to four centimeters.
• the length of the head will not be more than two centimeters.
• the brushing head 2 has, along its longitudinal axis, an internal cavity 10, blind in which the terminal portion of the cannula 4 is introduced, said terminal portion and said cavity having complementary shapes.
• the terminal portion of the cannula is formed by a narrowing of the said cannula, which makes it possible to reduce the section of the cavity 10 and consequently the thickness of the brushing head 2.
• the end of the cannula is closed, the nozzle 5 of the latter being formed radially near said end.
• the head has an external flat 9 in which the bristles are rooted.
• the drilling 6 that the head comprises is made radially from the flat and opens into the internal cavity 10.
• the part of the head opposite to this flat may have an ergonomic shape to allow better penetration into the mouth.
• radial bores 6 made from the flat surface and opening into the internal cavity may be provided, these radial bores all coming into communication with the nozzle 5 of the cannula.
• the brushing head is mounted on the cannula with the possibility of displacement relative to the cannula and this between an initial position in which the nozzle of the cannula is closed and a final position in which the piercing 6 which it comprises, which opens into the region of the bristles by one of its ends, is by its other end, in communication with the nozzle 5 of the cannula 4 to allow the distribution of a dose of toothpaste in the bristles of the brush, dispensing operated by pressing the reservoir.
• the head cavity and the cannula are cylindrical in shape and the brush head is mounted on the cannula with the possibility of rotational movement.
• the drilling presented by the head and the nozzle of the cannula will move away from or approach each other by angular movement of the head.
• the nozzle 5 will be closed off by the surface of the internal cavity 10.
• the head 2 is blocked in translation on the cannula.
• the translational locking of the head on the cannula is: effected by adhesion.
• the head in the internal cavity may be provided with at least one projecting rib, this rib coming into pressure against the cylindrical face of the terminal portion of the cannula.
• this rib develops in the cavity 10 in the form of a helix.
• the cavity has several regularly distributed ribs, each rib developing along the outline of a circle. - *
• the translation of the head on the cannula is blocked by obstacle.
• a lug projecting from the surface of the cannula and a groove formed in the head cavity in which the throat engages the lug.
• annular seal is mounted in a groove in the cannula.
• this seal is advantageously constituted by one of the circular ribs.
• the head and the cannula may be provided with means for locating their position relative to one another.
• these locating means could be constituted by two indexes 11 and 12 formed respectively on the head and the cannula, these two indexes coming opposite one another for example when the head is placed according to the position of use of the brush, that is to say according to the final position.
• locking members consisting of an elastic element protruding fixedly to the external surface of the cannula and by two orifices practiced in the head cavity.
• the elastic member enters one of these orifices when the head is arranged in its initial position and in the other orifice when the head is arranged in its final position.
• the brushing head is intimately fixed to the cannula and cannot move relative to the latter, both in translation and in rotation, or else is molded at the end of the cannula.
• a toothbrush according to the embodiments previously described is advantageously provided with a protective cap 14 covering the bristles of the brushing head and being clipped to the body of said head.
• This capsule is advantageously provided with an internal pin 15 which, when the capsule is placed on the head, closes the bore 6 of the brushing head, in order to avoid drying of the product in the reservoir and the cannula and to guarantee the authenticity of the first and only use of the brushing device.
• the pin 15 may come to close off the nozzle 5 of the cannula.
• Such an arrangement can also be applied to a brush head rotatably mounted on the cannula.
• a sealing membrane may be provided either for piercing the head or for the nozzle, always to avoid drying of the product before use of the brushing device.
• This membrane may be perforated by the pin of the capsule when the latter is pressed towards the brushing head.
• the brushing device in particular for the teeth as described, may consist of the elements of a paste tube, comprising a cannula with a collar, the brushing head possibly being the closure plug of this tube.
• a paste tube comprising a cannula with a collar
• the brushing head possibly being the closure plug of this tube.

Landscapes

• Brushes (AREA)
• Materials For Medical Uses (AREA)
• Massaging Devices (AREA)
• Adhesives Or Adhesive Processes (AREA)
• Lubricants (AREA)
• Tubes (AREA)
• Pens And Brushes (AREA)
• Dental Preparations (AREA)
• Non-Flushing Toilets (AREA)
• Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9378827

Family Applications (1)

Country Status (17)

Cited By (2)

Families Citing this family (9)

Citations (5)

Family Cites Families (4)

• 1989
  • 1989-02-09 FR FR8902001A patent/FR2642626B1/fr not_active Expired - Fee Related
  • 1989-04-17 PT PT90287A patent/PT90287B/pt not_active IP Right Cessation
• 1990
  • 1990-01-02 EP EP90901649A patent/EP0419587B1/fr not_active Expired - Lifetime
  • 1990-01-02 CA CA002026988A patent/CA2026988C/fr not_active Expired - Fee Related
  • 1990-01-02 ES ES90901649T patent/ES2078334T3/es not_active Expired - Lifetime
  • 1990-01-02 DE DE69021971T patent/DE69021971T2/de not_active Expired - Fee Related
  • 1990-01-02 AU AU48378/90A patent/AU4837890A/en not_active Abandoned
  • 1990-01-02 JP JP2501763A patent/JPH03505054A/ja active Pending
  • 1990-01-02 AT AT90901649T patent/ATE126980T1/de not_active IP Right Cessation
  • 1990-01-02 WO PCT/FR1990/000003 patent/WO1990009122A1/fr active IP Right Grant
  • 1990-02-06 IS IS3542A patent/IS3542A7/is unknown
  • 1990-02-07 GR GR900100079A patent/GR1001113B/el not_active IP Right Cessation
  • 1990-02-08 DD DD90337691A patent/DD291920A5/de not_active IP Right Cessation
  • 1990-02-08 CN CN90101405.2A patent/CN1053885A/zh active Pending
  • 1990-02-08 PT PT93091A patent/PT93091B/pt not_active IP Right Cessation
  • 1990-02-09 IE IE46290A patent/IE74128B1/en not_active IP Right Cessation
  • 1990-02-09 YU YU26290A patent/YU26290A/sh unknown
  • 1990-02-09 NZ NZ232464A patent/NZ232464A/xx unknown

Patent Citations (5)

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