EP4179918A1 - Abnehmbarer zahnbürstenkopf und zahnbürste mit einem solchen kopf - Google Patents

Abnehmbarer zahnbürstenkopf und zahnbürste mit einem solchen kopf Download PDF

Info

Publication number
EP4179918A1
EP4179918A1 EP21208239.0A EP21208239A EP4179918A1 EP 4179918 A1 EP4179918 A1 EP 4179918A1 EP 21208239 A EP21208239 A EP 21208239A EP 4179918 A1 EP4179918 A1 EP 4179918A1
Authority
EP
European Patent Office
Prior art keywords
head
base
toothbrush
handle
hole
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Withdrawn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
EP21208239.0A
Other languages
English (en)
French (fr)
Inventor
Julien Luc Bernard
Muriel Christine Ganiere Bernard
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
Priority to EP21208239.0A priority Critical patent/EP4179918A1/de
Priority to ES22818226T priority patent/ES3064894T3/es
Priority to EP22818226.7A priority patent/EP4432880B1/de
Priority to CN202280074792.XA priority patent/CN118401146A/zh
Priority to PCT/EP2022/081670 priority patent/WO2023084051A1/fr
Publication of EP4179918A1 publication Critical patent/EP4179918A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/22—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier rubber bristles being fixed in or on brush bodies
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B7/00—Bristle carriers arranged in the brush body
    • A46B7/04—Bristle carriers arranged in the brush body interchangeably removable bristle carriers
    • A46B7/042—Clip or snap connection for bristle carriers
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/005—Arrangements of the bristles in the brush body where the brushing material is not made of bristles, e.g. sponge, rubber or paper
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Definitions

  • the patent US5224234 describes several embodiments of a head meeting the above characteristics.
  • the embodiments illustrated in Figures 11 to 15, in particular, provide a toothbrush comprising a handle comprising a handle extended by two arms, each of which comprises a tooth oriented inwards and intended to cooperate with a notch provided in the head.
  • the embodiment of Figures 14 and 15 further provides that the head comprises lateral grooves in which the arms of the handle are housed in the assembled configuration.
  • the head has a rather conventional structure, that is to say it carries a plurality of bristles whose base is retained in the head in a standard manner.
  • a main object of the present invention is to provide a toothbrush head of alternative construction to that of the toothbrush heads already known from the prior art, capable of having a robust and stable mechanical connection with a suitable handle, while by being produced by the implementation of a simple manufacturing process and by making it possible to obtain a quality of brushing at least equal to that of the toothbrushes already known.
  • the toothbrush head according to the invention can be manufactured by implementing a relatively easy manufacturing process.
  • a simple overmolding operation makes it possible to produce the cleaning member, the anchoring of which on the rigid base is reinforced thanks to its anchoring portion arranged in the first channel, while allowing the simultaneous production of an abutment of stabilization intended to cooperate with a handle.
  • the cooperation of the stabilizing tab of the handle with the stabilizing abutment of the head makes it possible to guarantee a better hold of the head on the handle, when using the assembled toothbrush, than in the case of brushes with teeth of the prior art, in particular by eliminating the risks of relative rotation between the head and the handle along an axis passing through the two notches, as well as the clearance between the handle and the head in the longitudinal direction.
  • the first channel has an outlet opening into the other of the main faces, and that the first anchoring portion connects the main faces to each other, in order to ensure a mechanical connection. even more robust between the cleaning member and the rigid base.
  • the base in general, provision can preferably be made for the base to include a plurality of additional anchoring channels connecting the main faces to one another, each of which is filled with an additional anchoring portion of the member cleanser. It is thus possible to ensure good homogeneity of the hold of the cleaning member over the entire extent of the base.
  • each of the main faces may be at least partially overmolded by the cleaning member.
  • the peripheral wall prefferably has an average height slightly greater than the average distance separating the main faces from each other, such that the main faces are located slightly set back with respect to the peripheral wall following the direction of the thickness of the head.
  • n is between 1 and 10.
  • the cleaning member can comprise an elongated empty pocket, preferably crossing along the width of the cleaning member and preferably extending along at least one third of the length of the base, so as to fill a suspending role.
  • the cleaning member may comprise at least first and second empty pockets arranged symmetrically with reference to a median plane of the head substantially perpendicular to the main faces or in the extension of one another in the direction longitudinal from the base, being separated from each other by a flexible membrane made in one piece with the cleaning member.
  • the cleaning member can adapt perfectly to the curvature of the dentition during toothbrushing operations.
  • the present invention also relates to a toothbrush handle intended to cooperate with a toothbrush head according to the characteristics stated above, comprising a handle extended at one end by a connecting portion, itself extended by a two arms, each arm of which is provided with a tooth intended to cooperate with a notch of the head, and comprising a stabilization tab arranged in the extension of the connecting portion, between the arms of the fork, and intended to be inserted in the head hole.
  • the present invention also relates to a toothbrush comprising a head and a handle according to the above characteristics.
  • FIG. 1 shows a simplified perspective view of a toothbrush 1 according to a preferred embodiment of the present invention.
  • the toothbrush 1 is of the type comprising a handle 2 carrying a head 4, elongated and assembled to the handle 2 in a removable manner.
  • the handle 2 comprises a handle 6 extended at one end by a connecting portion 8, itself extended by a fork 10 with two arms ensuring the connection with the head 4, as will be described in more detail below. below.
  • the head 4 comprises a rigid base 12, partially overmoulded by a cleaning member 14 comprising in particular a plurality of flexible cleaning elements 16.
  • FIG. 2 represents a simplified front view, in partial section along a first section plane, of the toothbrush 1, while the figures 3a and 3b represent simplified sectional views of the toothbrush 1, according to respective second and third sectional planes. More precisely, only the head 4 is represented in section on the view of the figure 2 , according to a sectional plane substantially merging with a median horizontal plane (referenced by P1 on the picture 3a , "horizontal” referring to the orientation of the toothbrush when it is placed on a support with its cleaning elements oriented vertically) of its rigid base 12.
  • a median horizontal plane referenced by P1 on the picture 3a , "horizontal” referring to the orientation of the toothbrush when it is placed on a support with its cleaning elements oriented vertically
  • the picture 3a represents a view according to a sectional plane substantially coinciding with a vertical and longitudinal median plane of the toothbrush 1 (referenced by P2 on the figure 2 ), while the figure 3b represents a view according to a vertical and transverse sectional plane of the toothbrush 1 (referenced by P3 on the figure 2 ).
  • each arm of the fork 10 comprises a tooth 20 intended to cooperate with the head 4 to ensure the assembly of the latter on the handle 2.
  • the handle 2 comprises a stabilization tab 22 arranged between the arms of the fork 10, in the extension of the connecting portion 8.
  • the base 12 comprises two main faces 24, 26 connected to each other by a peripheral wall 28.
  • the latter advantageously has an average height slightly greater than the average distance separating the main faces 24, 26 from each other, such that the main faces 24, 26 are located slightly set back relative to the peripheral wall 28 in the direction of the thickness of the head 4.
  • the peripheral wall 28 includes a groove 30 extending on either side of the end of the base 12 located on the side of the handle 2, along a little more than half the length of the base 12.
  • two notches 32 are provided at the bottom of the groove 30, at its two ends.
  • a hole 34 is made in the peripheral wall 28 at the level of the end of the base 12 located on the side of the handle 2.
  • the arrow shown on the figure 2 symbolizes the assembly of the head 4 to the handle 2.
  • the groove 30 is intended to facilitate the insertion of the head 4 between the two arms of the fork 10, until the teeth 20 are positioned opposite notches 32 and are inserted into the latter to ensure the locking of the head 4 on the handle 2.
  • the stabilization tab 22 is inserted into the hole 34 to improve the strength of the mechanical connection between the handle 2 and head 4.
  • the arms of the fork 10 are advantageously housed at least partially in the groove 30 and thus contribute to the good performance of the assembly.
  • the base 12 further comprises a plurality of anchoring channels 36 connecting its main faces 24, 26 to each other and whose function will be explained below.
  • a first channel 36a comprises a main portion, extending in a direction essentially parallel to the envelope of the peripheral wall 28, in other words vertical according to the orientation defined above, and a branch 38, extending from the main portion to the hole 34.
  • the first channel 36a could also be inclined alternatively, just like the other anchoring channel(s) 36.
  • the branch 38 has a smaller cross-section than that of the hole 34 and, possibly that of the main portion.
  • the cleaning member 14 is made in a single block and comprises a film 40, at least partially covering the main face 24, anchoring portions 42, filling the anchoring channels 36, 36a, an intermediate portion 44, covering the other main face 26 of the base 12, and the flexible cleaning elements 16.
  • the intermediate portion 44 acts as a buffer between the base 12 and the flexible cleaning elements 16, as shown will be discussed in more detail later.
  • the anchoring portion 42 housed in the first anchoring channel 36a, is extended by a transverse portion housed in its derivation 38, to define a stabilization stop 46 located here at the bottom of the hole 34, in a preferred but optional manner .
  • the latter is intended to be compressed by the stabilization tongue 22 of the handle 2 when it is inserted into the hole 34, thus further reinforcing the stability of the mechanical connection between the handle 2 and the head 4 of the toothbrush 1 according to the present invention, in particular by avoiding any risk of relative rotation between the handle 2 and the head 4 along the axis passing through the notches 32.
  • the difference in dimensions provided between the sections of the hole 34 and of the bypass makes it possible to define a shoulder at the bottom of the hole 34 against which the stabilization stop 46 can rest under the effect of the pressure which it undergoes from the stabilization tongue 22, when the toothbrush is assembled, thus improving the anchoring of the stop stabilization 46 at the bottom of the hole 34 and reducing the clearance between the handle 2 and the head 4 in the longitudinal direction.
  • the length of the stabilization tongue 22 is greater than that of the hole 34, and for the stabilization stop 46 to be arranged in the extension of the hole 34 instead of being at least partially housed therein.
  • the anchoring channels 36 make it possible to improve the mechanical strength between the base 12 and the cleaning member 14, in particular by connecting the film 40 to the intermediate portion 44, to sandwich the base 12. If only two channels of anchor 36 have been illustrated here, those skilled in the art will not encounter any particular difficulty in choosing a different number according to their own needs, it being noted that the more homogeneous the distribution of the anchoring channels will be over the entire extent of the base, more particularly towards its periphery, the better the mechanical strength of the cleaning member on the base.
  • the flexible cleaning elements 16 are made here in the form of strips generally oriented in a direction substantially transverse to the longitudinal direction of the base 12. It is possible to provide as an alternative that only part of the flexible cleaning elements 16 take such a form of lamella, the others being able to take any other suitable form. As it appears more particularly from figures 3a and 3b , the height of the flexible cleaning elements 16 can be variable depending on the width and/or the length of the base 12.
  • the cleaning member 14 comprises, in its intermediate portion 44, an empty pocket 48, elongated, preferably extending along at least one third of the length of the base 12, and preferably crossing along the width of the cleaning member 14 , so as to fulfill a suspension role by increasing the ability of the intermediate portion 44 to deform and therefore the ability of the flexible cleaning elements 16 to deform to better match the dentition when brushing the teeth.
  • the intermediate portion 44 comprises first and second empty pockets 50 similar to each other.
  • the first and second empty pockets 50 are arranged symmetrically with reference to the median plane P2 of the head 4, being separated from each other by a thin membrane 52, flexible and also made in one piece with the cleaning member 14.
  • the second empty pocket could be located in the extension of the first empty pocket, with the interposition of a membrane, both then having a width equal to the width of the cleaning member 14 to be traversing in the direction of the width.
  • the empty pockets could of course each have a length less than one third of the length of the base 12.
  • FIG 4 represents a simplified front view of the toothbrush 1 in a situation of use, and makes it possible to better illustrate the role played by the intermediate portion 44 and its empty pocket 48, in particular how the great ability of the intermediate portion 44 to deforming makes it possible to maintain all of the flexible cleaning elements 16 in contact with the dentition, including in the regions where the dentition has a significant curvature, by maintaining the orientation, almost individually for each flexible cleaning element 16, according to a direction substantially perpendicular to the corresponding contact surface on the dentition.
  • the slats can be slightly curved along their longitudinal direction, in such a way that they appear concave when observed from the handle 2.
  • the slats may or may not have a constant thickness depending on their length.
  • the curvature of the slats could also be reversed compared to the illustration in the figure 5a , that is to say that the slats could appear convex when they are observed from the handle 2, or even any.
  • n+1 cleaning portions capable of deforming independently of each other, n being between 1 and 10.
  • Three cutting planes D have been symbolized on the figure 5a , resulting in the production of four independent cleaning portions per slide, as illustrated in the figure 5b . Thanks to such a characteristic, the flexible cleaning elements 16 are able to adapt even more to the details of the dentition when brushing the teeth.
  • the handle 2 it could for example be made of metal (stainless steel, gold, etc.), or of carbon fibers.
  • the handle may or may not have a constant thickness, in particular with a connecting portion 8 which has a thickness of the order of 2.5 to 5 mm when the handle is made of stainless steel.
  • the stabilization tab 22 may have sides (as visible in the view of the picture 2 ) measuring for example about 2 to 3 mm each, and a thickness of the same order of magnitude as that of the connecting portion 8.
  • its rigid base 12 can be made of any material having sufficient rigidity, for example a thermoplastic material (ABS), a resin to allow its manufacture by 3D printing, a wood, a metal, carbon , etc.
  • the cleaning member 14 can be made of any material having sufficient elasticity, for example an elastomer, such as rubber, TPE or silicone.
  • the flexible cleaning elements 16 can be loaded with abrasive microparticles to increase their wear resistance or even their abrasive power.
  • the toothbrush head according to the invention can be manufactured in a relatively simple manner, possibly in large series, while having optimal properties for ensuring effective toothbrushing.
  • the handle and the head of the toothbrush according to the present invention can advantageously be sterilized with steam.

Landscapes

  • Brushes (AREA)
EP21208239.0A 2021-11-15 2021-11-15 Abnehmbarer zahnbürstenkopf und zahnbürste mit einem solchen kopf Withdrawn EP4179918A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP21208239.0A EP4179918A1 (de) 2021-11-15 2021-11-15 Abnehmbarer zahnbürstenkopf und zahnbürste mit einem solchen kopf
ES22818226T ES3064894T3 (en) 2021-11-15 2022-11-11 Detachable toothbrush head and toothbrush comprising such a head
EP22818226.7A EP4432880B1 (de) 2021-11-15 2022-11-11 Abnehmbarer zahnbürstenkopf und zahnbürste mit einem solchen kopf
CN202280074792.XA CN118401146A (zh) 2021-11-15 2022-11-11 可移除牙刷头部和包括这种头部的牙刷
PCT/EP2022/081670 WO2023084051A1 (fr) 2021-11-15 2022-11-11 Tete de brosse a dents amovible et brosse a dents comportant une telle tete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21208239.0A EP4179918A1 (de) 2021-11-15 2021-11-15 Abnehmbarer zahnbürstenkopf und zahnbürste mit einem solchen kopf

Publications (1)

Publication Number Publication Date
EP4179918A1 true EP4179918A1 (de) 2023-05-17

Family

ID=78621799

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21208239.0A Withdrawn EP4179918A1 (de) 2021-11-15 2021-11-15 Abnehmbarer zahnbürstenkopf und zahnbürste mit einem solchen kopf
EP22818226.7A Active EP4432880B1 (de) 2021-11-15 2022-11-11 Abnehmbarer zahnbürstenkopf und zahnbürste mit einem solchen kopf

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP22818226.7A Active EP4432880B1 (de) 2021-11-15 2022-11-11 Abnehmbarer zahnbürstenkopf und zahnbürste mit einem solchen kopf

Country Status (4)

Country Link
EP (2) EP4179918A1 (de)
CN (1) CN118401146A (de)
ES (1) ES3064894T3 (de)
WO (1) WO2023084051A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4683604A (en) * 1985-03-26 1987-08-04 Rueb Fritz A Toothbrush with exchangeable bristle carrier
FR2595221A1 (fr) * 1986-03-04 1987-09-11 Msellati Guy Necessaire buccal a elements interchangeables
US5224234A (en) 1990-01-22 1993-07-06 Arsenault Jeffrey L Toothbrush with replaceable bristles
US20210161282A1 (en) * 2019-12-03 2021-06-03 Colgate-Palmolive Company Oral care implement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4683604A (en) * 1985-03-26 1987-08-04 Rueb Fritz A Toothbrush with exchangeable bristle carrier
FR2595221A1 (fr) * 1986-03-04 1987-09-11 Msellati Guy Necessaire buccal a elements interchangeables
US5224234A (en) 1990-01-22 1993-07-06 Arsenault Jeffrey L Toothbrush with replaceable bristles
US20210161282A1 (en) * 2019-12-03 2021-06-03 Colgate-Palmolive Company Oral care implement

Also Published As

Publication number Publication date
ES3064894T3 (en) 2026-04-29
WO2023084051A1 (fr) 2023-05-19
EP4432880B1 (de) 2026-01-14
CN118401146A (zh) 2024-07-26
EP4432880A1 (de) 2024-09-25
EP4432880C0 (de) 2026-01-14

Similar Documents

Publication Publication Date Title
EP1049391B1 (de) Zahnbürste mit verbesserten befestigungsmittel der reibungselementen
EP3261487B1 (de) Applikatorvorrichtung zum auftragen eines produktes vom flüssigen oder pastösen typ auf keratinfasern
EP1115305B1 (de) Vorrichtung zum auftragen eines produktes auf keratinische fasern , insbesondere auf wimpern oder augenbrauen
FR2796530A1 (fr) Dispositif pour le peignage des cils ou des sourcils et dispositif de conditionnement et d'application ainsi equipe
EP1726234B1 (de) Applikator zum Auftragen eines Produktes auf die Wimpern und/oder Augenbrauen
FR2562775A1 (fr) Brosse a poils retractables elastiquement, notamment pour le brossage de surfaces de relief complexe telles que les dents
FR2796528A1 (fr) Dispositif de conditionnement et d'application d'un produit sur les cils ou les sourcils
EP1051093A1 (de) Zahnburste mit stäbe zur massage des zahnfleisches
EP1070465A2 (de) Vorrichtung zum Aufbewahren und Auftragen eines Produktes auf Wimpern oder Augenbrauen
LU87492A1 (fr) Brosse a dents
FR2796527A1 (fr) Dispositif de conditionnement et d'application d'un produit sur les cils ou les sourcils
FR2810860A1 (fr) Dispositif pour l'application d'un produit sur les cils ou les sourcils
EP1157629A1 (de) Vorrichtung zum Auftragen eines kosmetischen oder pflegenden Produktes, insbesondere auf Wimpern oder Augenbrauen
CA2674431A1 (en) Dispositif de fixation pour chemin de cables en fils
FR2953681A1 (fr) Dispositif de suspension pour machine agricole
WO2001005272A1 (fr) Dispositif pour l'application d'un produit sur les fibres keratiniques, notamment les cils ou les sourcils
FR3034969A1 (fr) Dispositif applicateur d'un produit de type fluide ou pateux sur des fibres keratiniques
EP4432880B1 (de) Abnehmbarer zahnbürstenkopf und zahnbürste mit einem solchen kopf
CH719143A2 (fr) Tête de brosse à dents amovible et brosse à dents comportant une telle tête.
FR3059544A1 (fr) Dispositif intrabuccal a paire de gouttieres dentaires articulees
FR3132828A1 (fr) Applicateur pour produit cosmétique comportant une partie mobile comprenant au moins une chaîne de boucles ouvertes
FR3117748A1 (fr) Pinceau d’application de produit cosmétique
FR2474854A1 (fr) Dispositif porte-eponge
WO2023222736A1 (fr) Lunettes à charnières élastiques
CA2315348C (fr) Brosse a dents comportant des moyens perfectionnes de fixation des elements de friction

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20231118