EP2701547B1 - Brosse à dents comportant un support de poils rotatif - Google Patents

Brosse à dents comportant un support de poils rotatif Download PDF

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Publication number
EP2701547B1
EP2701547B1 EP12735773.9A EP12735773A EP2701547B1 EP 2701547 B1 EP2701547 B1 EP 2701547B1 EP 12735773 A EP12735773 A EP 12735773A EP 2701547 B1 EP2701547 B1 EP 2701547B1
Authority
EP
European Patent Office
Prior art keywords
bristle carrier
mount
toothbrush
pin
toothbrush according
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.)
Active
Application number
EP12735773.9A
Other languages
German (de)
English (en)
Other versions
EP2701547A2 (fr
Inventor
Jürgen Butz
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.)
Interbros GmbH
Original Assignee
Interbros GmbH
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 Interbros GmbH filed Critical Interbros GmbH
Publication of EP2701547A2 publication Critical patent/EP2701547A2/fr
Application granted granted Critical
Publication of EP2701547B1 publication Critical patent/EP2701547B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0054—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
    • A46B5/0062—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being flexible or resilient during use
    • A46B5/0066—Flexible resilience by elastic deformation of the material
    • 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
    • A46B7/00—Bristle carriers arranged in the brush body
    • A46B7/06—Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement
    • A46B7/08—Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement as a rotating disc
    • 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
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/0004—Additional brush head
    • A46B5/0012—Brushes with two or more heads on the same end of a handle for simultaneous use, e.g. cooperating with each-other

Definitions

  • the invention relates to a toothbrush with a brush body having a handle portion and a head portion, wherein in the head portion at least one bristle carrier is rotatably mounted, which carries a bristles, and wherein in the head portion at least one cup-shaped receptacle is formed, in which the bristle carrier is inserted in which a pin is arranged in the receptacle, which supports the bristle carrier and forms its axis of rotation, the pin holding the bristle carrier at a small distance from the receptacle or the head portion, and wherein a pull-out protection is provided, which is a removal of the bristle carrier from the Recording prevented.
  • a structurally simple toothbrush has a usually made of plastic, rod-shaped brush body, at one end of a handle portion is formed. At the opposite end of the handle portion, a head portion is formed on which a bristle in the form of bristle bundles and / or individual bristles is attached.
  • the cleaning effect is only of the type and determines the duration of the movement that a user performs with the bristles on the tooth surface.
  • the WO2006 / 079122 A1 shows a corresponding toothbrush, in which two bristle carriers, each carrying a bristles, are rotatably supported on the head portion of the toothbrush.
  • Each bristle carrier has on its underside a recess in which an undercut is formed.
  • the head portion of the toothbrush has complementary approaches, so that in each case one approach can be inserted into the recess and there securely latched. In this way, it is possible to automatically translate a reciprocating brushing action that is unfavorable to dentistry into a rotary motion that is preferred by dentistry.
  • the US 6,338,176 B1 shows a toothbrush with two axially successively arranged bristle carriers, which are each rotatably mounted on the head portion.
  • the head portion on two cup-shaped receptacles, each having a bristle carrier is completely inserted.
  • the bristle carrier sits on a mushroom-like pin, which sits with its lower end in a through hole at the bottom of the receptacle and engages with its upper mushroom-like end in a correspondingly complementary recess formed on the underside of the bristle carrier.
  • DE-A-197 45 876 describes a toothbrush with a brush body having a handle portion and a head portion.
  • a bristle carrier is rotatably mounted, which carries a bristles.
  • at least one cup-shaped receptacle is further formed, in which the bristle carrier is inserted.
  • a pin is arranged, which supports the bristle carrier and forms its axis of rotation. The pin holds the bristle carrier at a small distance from the receptacle or the head section.
  • the pin is cylindrical and is seated with its one end in a blind hole-shaped receiving hole formed in the cup-shaped receptacle, and with its other end in a blind-hole-shaped receiving hole formed in the bristle carrier.
  • An extract safety is provided which prevents removal of the bristle carrier from the receptacle.
  • the pull-out protection is designed as a pin which is perpendicular to the pin, which forms the axis of rotation, and is fixedly secured at one end to the head portion and engages with the other end in an at least partially circumferential groove in the bristle carrier.
  • the invention has for its object to provide a toothbrush of the type mentioned, in which excessive wear of the components is avoided in the rotation of the bristle carrier and in which the pin is securely positioned.
  • a toothbrush with the features of claim 1. It is also provided that in the head portion of Brush body is formed at least one cup-shaped receptacle, in which the bristle carrier is inserted, that in the receptacle a preferably made of metal or plastic existing pin is arranged, which supports the bristle carrier and forms its axis of rotation, wherein the pin the bristle carrier at a small distance from the receptacle or holding the head portion, and that a pull-out protection is provided which prevents removal of the bristle carrier from the receptacle.
  • the extract safety device comprises at least a first engagement part, which is formed on the bristle carrier, and at least one second engagement part, which is formed on the head part.
  • the engagement parts are positively engageable with each other.
  • the first engagement part is formed by a completely circumferential, radially protruding shoulder of the bristle carrier, and there are provided a plurality of circumferentially distributed second engagement parts.
  • the functions of "rotary storage” and “pull-out protection” are separated.
  • the pivotal mounting of the bristle carrier relative to the head portion of the brush body is achieved by the pin.
  • the pin may be held either in the bristle carrier or in the head portion of the brush body and the respective other component is loosely mounted rotatably on the pin.
  • the pin is designed as a separate component. In this case, the pin is dimensioned so that the bristle carrier is disposed in the unused state of the toothbrush at a small distance from the receptacle or the head portion of the brush body, that is not in direct contact with this.
  • the pin is cylindrical and in particular circular cylindrical in shape and is seated with its one end in a blind hole-shaped receiving hole, which is formed in the cup-shaped receptacle, and with its other end in a further blind hole-shaped receiving hole, which is formed in the bristle carrier.
  • the pin is safe in the axial direction positioned and between the pin and the bristle carrier or between the pin and the receptacle is given only a relatively small contact surface, whereby a material wear due to frictional forces is kept low.
  • the bristle carrier can rotate freely about the axis of rotation defined by the pin without coming into contact with the head portion of the brush body. In this way, friction forces are avoided, so that these components are subject to a much lower wear and the release of plastic particles is avoided. Due to the distance between the bristle carrier and the head portion of the brush body, these areas can be cleaned or rinsed by the user in a simple manner.
  • the pull-out guard prevents the bristle carrier from disengaging from the pin in use, and this pull-out safeguard only needs to be effective when a pull-out force is applied to the bristle body that does not or rarely occurs during normal use of the toothbrush.
  • a hub part is formed that has the receiving hole for the pin.
  • the pin is held tilt-proof in this way in the receiving hole, wherein it can either be set in the receiving hole or rotatably inserted into this.
  • the bristle carrier is preferably dish-shaped and has a lower-side approach, with which it engages in the receptacle. It can be provided that the bristle carrier, the recording on the upper side in particular completely covers and engages only with the approach in the recording. In this way, the entry of dirt particles into the receptacle can be avoided or at least reduced.
  • the receiving hole for the pin is formed in the bristle carrier on the underside.
  • the pull-out safety device should ensure that the bristle carrier can not come loose from the brush body or the holder during operation of the toothbrush. This danger exists in particular if the user applies eccentric forces to the bristle carrier and thus deforms the bristle carrier.
  • the safety catch comprises at least a first engagement part, which is formed on the bristle carrier, and at least one second engagement part, which is formed on the head part, wherein the engagement parts are positively engageable with each other.
  • the engagement parts can be locked together during assembly of the toothbrush by the bristle carrier is pressed from above into the receptacle.
  • the first engaging part is formed by a completely circumferential, radially protruding shoulder of the bristle carrier, while the second engaging part is formed by at least a plurality of hooks formed on the head.
  • the second engaging part is formed by at least a plurality of hooks formed on the head.
  • 2 to 5 on the Circumference distributed arranged second engaging parts or hooks may be provided.
  • the toothbrush can be configured with a single rotatable bristle carrier and thus a receptacle, but it is also possible to arrange at least two receptacles lying one behind the other in the longitudinal direction of the toothbrush and rotatably insert a bristle carrier into each receptacle. It has proven to be advantageous if the axes of rotation of the bristle carrier are aligned inclined to opposite sides of a longitudinal axis of the toothbrush. The bristle carrier thus do not rotate about parallel axes of rotation, but the axes of rotation extend at an angle of 10 ° to 30 ° to each other. Accordingly, the shots for the bristle carrier are inclined relative to each other and have to Chryslergesestzten sides of the longitudinal axis of the toothbrush.
  • the at least two receptacles for each bristle carrier lie one behind the other in the longitudinal direction of the toothbrush, ie, a receptacle facing away from the handle section of the toothbrush and a receptacle facing the handle section of the toothbrush are provided.
  • the two receptacles are connected to each other by means of a web of the head portion, wherein the web can be dimensioned so that the receptacle facing away from the handle portion facing relative to the handle portion Recording is pivotable by the web is elastically deformed.
  • the pivotability of the front, the handle portion facing away from the receptacle relative to the inner, the handle portion facing receiving is determined by the material of the head portion and the dimensions of the web, as this acts as a spring.
  • the web can be provided with a sheath, which preferably consists of a soft elastomeric plastic.
  • a toothbrush 10 comprises in the usual way a brush body 11 made of plastic, which has a rear grip portion 12 and a front head portion 13.
  • a brush body 11 made of plastic, which has a rear grip portion 12 and a front head portion 13.
  • two plate-shaped bristle carrier 14 are rotatably mounted, each carrying a bristles 15.
  • each bristle carrier 14 has on its upper side a plurality of holes 18, in each of which a bristle bundle 25 is inserted.
  • the bristle bundles 25 and / or individual bristles not shown form the bristles 15.
  • the bristle carrier 14 On its underside, the bristle carrier 14 has a rotationally symmetrical projection 19 which has at its lower end a completely circumferential, radially outwardly projecting shoulder 20 (see FIGS. 3 and 4 ).
  • an axial receiving hole 22 is formed in the form of a blind hole.
  • the brush body 11 has in its head portion 13 in the longitudinal direction of the toothbrush one behind the other lying cup-shaped receptacles 16, which at its bottom in each case three distributed over the circumference arranged drain holes 23 (see FIG. 5 ).
  • upwardly projecting hooks 21 are formed, which form a second engagement part and with the Shoulder 20 of the bristle carrier 14 can engage in positive engagement.
  • an upwardly extending hub portion 27 In the middle of the cup-shaped receptacle 16 at the bottom of an upwardly extending hub portion 27 is formed, which has a blind hole-shaped receiving hole 24.
  • a cylindrical and in particular circular cylindrical pin 17 made of metal or plastic is used, which protrudes from the hub portion 27 upwards so that the protruding portion of the pin 17 can be inserted into the receiving hole 22 at the bottom of the bristle carrier 14.
  • FIG. 6 shows a section through the head portion of the toothbrush in the assembled state.
  • the pin 17 is inserted into the receiving hole 24 of the hub portion 27 and held there against rotation.
  • the bristle carrier 24 carrying the bristle bundles 25 is placed with its lower receiving hole on the upper, protruding end of the pin 17 and held rotatably on this.
  • the bristle carrier 14 is held in the receptacle 16 by a safety catch 26 which is formed by the hooks 21 at the bottom of the receptacle 16 and the peripheral shoulder 20 at the lower end of the bristle carrier 14.
  • a safety catch 26 which is formed by the hooks 21 at the bottom of the receptacle 16 and the peripheral shoulder 20 at the lower end of the bristle carrier 14.
  • FIG. 6 shows, engages the shoulder 20 of the bristle carrier 14 in the mounted state, the hooks 21 of the receptacle 16, of which in FIG. 6 only one hook 21 is visible.
  • the bristle carrier 14 in the assembled, unused state according to FIG. 6 alone on pin 17 am Head part 13 is supported, that is held in this state at a small distance from the surface of the receptacle 16 and the head portion 13. This ensures a smooth rotation of the bristle carrier 14 and prevents excessive friction between superimposed plastic parts while accurate and secure positioning of the pin 17th
  • the bristle carrier 14 is plate-shaped in its upper portion, wherein on the underside of the plate-shaped portion of the projection 19 is formed.
  • the dish-shaped region and the projection 19 are dimensioned such that the outer dimensions of the dish-shaped region are larger than the inner dimensions of the receptacle 16, so that the plate-shaped region is arranged above the upper access opening of the receptacle 16 and covers it (see FIG. 6 ), wherein the bristle carrier 14 engages only with the projection 19 in the receptacle 16.
  • FIG. 7 shows, the axes of rotation D1 and D2, about which the bristle carrier 14 are rotatable, not parallel to each other, but have an angular offset of 10 ° to 30 ° to each other.
  • the axes of rotation D1 and D2 of the bristle carrier 14 are aligned inclined to opposite sides of a longitudinal axis L of the toothbrush 10.
  • the two in the longitudinal direction of the toothbrush 10 successive receptacles 16 are according to FIG. 8 connected by a web 28 of the head portion 13 with each other.
  • the web 28 is dimensioned such that the handle portion remote from the front, according FIG. 8 left receptacle 16 relative to the handle portion facing, according to FIG. 8 right recording is pivotally, as indicated by the double arrow S and a dashed contour line.
  • the spring effect of the web can be adjusted by its material and dimensions.
  • the web 28 is provided with a sheath 29 made of an elastomeric plastic.

Landscapes

  • Brushes (AREA)

Claims (13)

  1. Brosse à dents (10) avec un corps de brosse (11) comportant une section de manche (12) et une section de tête (13), au moins un support de poils (14) étant disposé de façon pivotante dans la section de tête (13) supportant une implantation de poils (15) et au moins un logement (16) en forme d'écuelle étant réalisé dans la section de tête (13), le support de poils (14) étant inséré dans ledit logement, une tige (17) étant disposée dans le logement (16), ladite tige logeant le support de poils (14) et formant son axe de rotation, la tige (17) maintenant le support de poils (14) à distance réduite du logement (16) et/ou de la section de tête (13) et une sécurité anti-retrait (26) étant prévue empêchant un retrait du support de poils (14) hors du logement (16), la tige (17) prenant une forme de cylindre et étant logée, avec sa première extrémité, dans un trou de logement (24) en forme de trou borgne réalisé dans un logement (16) en forme d'écuelle et étant logée, avec son autre extrémité, dans un trou de logement (22) en forme de trou borgne réalisé dans le support de poils, la sécurité anti-retrait (26) comprenant au moins une première partie de préhension (20) réalisée au niveau du support de poils (14) et au moins une deuxième partie de préhension (21) réalisée au niveau de la partie de tête (13), les parties de préhension (20, 21) pouvant être amenées en prises l'une avec l'autre par complémentarité de formes, caractérisée en ce que la première partie de préhension (20) est formée d'un épaulement entièrement périphérique et saillant dans le plan radial du support de poils (14) et que plusieurs deuxièmes parties de préhension (21) disposées de façon répartie sur la périphérie sont prévues.
  2. Brosse à dents selon la revendication 1, caractérisée en ce que les deuxièmes parties de préhension (21) sont formées de plusieurs crochets réalisés au niveau de la section de tête (13).
  3. Brosse à dents selon la revendication 1 ou 2, caractérisée en ce qu'une partie de moyeu (27) comportant le trou de logement (24) pour la tige (17) est réalisée dans le logement (16) en forme d'écuelle.
  4. Brosse à dents selon l'une quelconque des revendications 1 à 3, caractérisée en ce que le support de poils (14) prend une forme de disque et s'engrène dans le logement (16) avec l'appendice (19) situé du côté inférieur.
  5. Brosse à dents selon la revendication 4, caractérisée en ce que le support de poils (14) recouvre du côté supérieur le logement (16) et s'engrène dans le logement (16) avec le seul appendice (19).
  6. Brosse à dents selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le trou de logement (22) prévu pour la tige (17) est réalisé dans le support de poils (14), sur son côté inférieur.
  7. Brosse à dents selon l'une quelconque des revendications 1 à 6, caractérisée en ce qu'au moins un trou d'évacuation (23) est réalisé dans le fond du logement (16) en forme d'écuelle.
  8. Brosse à dents selon l'une quelconque des revendications 1 à 7, caractérisée en ce qu'au moins deux logements (16) sont disposés de façon à reposer l'un derrière l'autre dans la direction longitudinale de la brosse à dents (10) et qu'un support de poils (14) est inséré de façon pivotante dans chaque logement (16).
  9. Brosse à dents selon la revendication 8, caractérisée en ce que les axes de rotation (D1, D2) du support de poils (14) sont orientés de façon inclinée par rapport aux côtés opposés d'un axe longitudinal (L) de la brosse à dents (10).
  10. Brosse à dents selon la revendication 8 ou 9, caractérisée en ce que les deux logements (16) sont reliés entre eux à l'aide d'un étai (28) de la section de tête (13), l'étai (28) étant dimensionné de telle sorte que le logement (16) opposé à la section de manche (12) peut pivoter par rapport au logement (16) orienté vers la section de manche (12).
  11. Brosse à dents selon la revendication 10, caractérisée en ce que l'étai (28) comporte une enveloppe (29).
  12. Brosse à dents selon la revendication 11, caractérisée en ce que l'enveloppe (29) est formée à partir d'un plastique élastomère.
  13. Brosse à dents selon l'une quelconque des revendications 1 à 12, caractérisée en ce que la tige (17) est en métal ou en plastique.
EP12735773.9A 2011-04-28 2012-04-25 Brosse à dents comportant un support de poils rotatif Active EP2701547B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110018879 DE102011018879A1 (de) 2011-04-28 2011-04-28 Zahnbürste mit rotierbarem Borstenträger
PCT/EP2012/001764 WO2012146373A2 (fr) 2011-04-28 2012-04-25 Brosse à dents comportant un support de poils rotatif

Publications (2)

Publication Number Publication Date
EP2701547A2 EP2701547A2 (fr) 2014-03-05
EP2701547B1 true EP2701547B1 (fr) 2015-06-03

Family

ID=46516659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12735773.9A Active EP2701547B1 (fr) 2011-04-28 2012-04-25 Brosse à dents comportant un support de poils rotatif

Country Status (3)

Country Link
EP (1) EP2701547B1 (fr)
DE (1) DE102011018879A1 (fr)
WO (1) WO2012146373A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102106646B (zh) * 2011-01-31 2017-07-04 李政衡 纵横牙刷
WO2013175513A1 (fr) * 2012-05-21 2013-11-28 P & B S.N.C. Di Piccenna Damiel E.C. Structure de brosse à dents
CN108968309A (zh) * 2018-07-18 2018-12-11 于守东 一种新型牙刷

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5727273A (en) * 1997-01-23 1998-03-17 Pai; Chung-Jeng Electric toothbrush assembly with sterilizing and charging devices
DE19717334C1 (de) * 1997-04-24 1998-07-09 Braun Ag Bürstenteil für eine elektrische Zahnbürste
DE19745876A1 (de) * 1997-10-17 1999-04-22 Braun Ag Bürstenteil für eine elektrische Zahnbürste
DE29822826U1 (de) * 1998-01-05 1999-04-01 Trisa Holding Ag, Triengen Bürstenkopf für eine Zahnbürste
US6338176B1 (en) * 1998-03-16 2002-01-15 Lee Y. Smith Manual rotary brush
CN2354429Y (zh) * 1998-09-04 1999-12-22 裴学增 手动旋转刷头牙刷
US6751823B2 (en) * 1999-06-23 2004-06-22 Ladislau Biro Motorized toothbrush brush tip with two counter-rotating brush heads rotating on a common axis
DE10205010B4 (de) * 2002-02-07 2004-06-17 Braun Gmbh Zahnbürstenkopf
DE10315011A1 (de) * 2002-11-05 2004-05-19 Novotech Ltd., St.Peter Port, Guernsey Elektrische Zahnbürste
WO2006079122A1 (fr) 2005-01-21 2006-07-27 Malcolm Duncan Brosse a dent

Also Published As

Publication number Publication date
WO2012146373A3 (fr) 2012-12-27
DE102011018879A1 (de) 2012-10-31
WO2012146373A2 (fr) 2012-11-01
EP2701547A2 (fr) 2014-03-05

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