WO2003070122A1 - Brosse a dents electrique - Google Patents

Brosse a dents electrique Download PDF

Info

Publication number
WO2003070122A1
WO2003070122A1 PCT/IB2003/000469 IB0300469W WO03070122A1 WO 2003070122 A1 WO2003070122 A1 WO 2003070122A1 IB 0300469 W IB0300469 W IB 0300469W WO 03070122 A1 WO03070122 A1 WO 03070122A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
axis
bristle
electrically driven
pivoting
Prior art date
Application number
PCT/IB2003/000469
Other languages
English (en)
Inventor
Wolfgang J. Obermann
Christian Mikula
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Priority to AU2003202765A priority Critical patent/AU2003202765A1/en
Priority to EP03701676A priority patent/EP1478303A1/fr
Priority to US10/504,761 priority patent/US20050102773A1/en
Priority to JP2003569084A priority patent/JP2005517489A/ja
Publication of WO2003070122A1 publication Critical patent/WO2003070122A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16—Power-driven cleaning or polishing devices
    • A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/3409—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor characterized by the movement of the brush body
    • A61C17/3418—Rotation around the axis of the toothbrush handle

Definitions

  • the invention relates to an electrically driven toothbrush comprising an electric motor for rotationally driving a drive shaft around a drive axis, a brash shaft having a free outer end provided with a bristle, conversion means for converting the rotational movement of the drive shaft into a reciprocal rotational movement of the brash shaft around a brash shaft axis according to conversion characteristics, and pivoting means for enabling the pivoting of at least part of the brash shaft around a pivot axis, extending perpendicularly to the longitudinal direction of the drive shaft, from a neutral pivoting position and against the action of forcing means, to a non-neutral position due to forces acting on the bristle.
  • the brush head of an electrical toothbrush can damage the gums or be painful, especially in case the gums are irritated. This damage or pain occurs when the contact force between bristle and gum becomes too large. By applying forces which are not detrimental to the gums of a user, better mouth health can be reached. Therefore, several electrically driven toothbrushes are developed which are provided which some kind of force control.
  • a toothbrush according to the preamble is known from US patent 5,406,664 which refers to the above-described problem and is provided with some kind of force control.
  • this patent document in fact several electrically driven toothbrushes are described, which have in common that of the bristle each of them is resiliently tiltable over a tilting distance with respect to an axis extending through and perpendicularly to a brash shaft extending between the bristle and a conversion mechanism for converting the rotation of an electric motor into a reciprocal rotation of the brash shaft with the bristle.
  • the brash shaft contains a bending portion using for instance a partially cut off part of the brush shaft, a resilient strip interconnecting two longitudinal parts of the brash shaft or a coil spring within the brash shaft.
  • the brash shaft is split into two longitudinal brush shaft portions of which the one carrying the bristle is pivotable around a pivot axis extending perpendicularly to the longitudinal direction of the brash shaft.
  • the two longitudinal brash portions are interconnected by a coil spring.
  • the reciprocation stroke of the bristle is changed by a change of the magnitude of the tilting distance due to the force with which a user presses the brush against the user's teeth.
  • European patent application 481 553 is another patent relating to an electrically driven toothbrash which aims to prevent the exertion of an excessive pressure by the toothbrush upon the teeth.
  • the toothbrash features an acoustically perceptible sound which is reproduced when a certain contact pressure is exceeded during teeth cleaning.
  • the electric drive unit is rotatable against the operation of a spring element.
  • the warning sound is caused by the fact that a spur wheel, mounted on a drive shaft extending on the backside of the drive unit, contacts a leaf spring.
  • the housing of the toothbrash acts as a resonator.
  • a disadvantage of such a toothbrash is that many users do not like to hear an acoustically perceptible sound, especially not if other people are still sleeping. Furthermore, the interaction between the spur wheel and the leaf spring causes an additional mechanical force acting upon the mechanisms.
  • the object of the invention is to provide a toothbrush according to the preamble which effectively prevents a user of an electrically driven toothbrush from pressing too hard and which toothbrash does not have the drawbacks of the toothbrushes of the prior art as described above.
  • the invention also aims to provide a toothbrush having a haptic feedback, which has proven to be more effective than non-haptic feedbacks in helping a user to adapt the handling of the brash.
  • the pivoting of the at least part of the brash shaft around the pivot axis to the non-neutral position causes a change in the conversion characteristics.
  • This means that the way the rotational movement of the drive shaft is converted into the reciprocal rotational movement of the brash shaft is influenced directly by the pivoting of the brash shaft around the pivot axis as this will occur if an excessive contact pressure is applied between bristle and teeth.
  • This influence is haptically detected by a user who can change the way of handling the electrically driven toothbrush by reducing the contact pressure such that the brash shaft returns to its neutral pivoting position.
  • a very effective embodiment is achieved when the conversion means comprise an arm member extending essentially radially from the brush shaft and an excenter body, being rotatable about an excenter axis which is located at a radial distance from the brash shaft axis, the excenter body and the arm member being constantly in contact with each other during rotational movement of the excenter body, the pivoting of the at least part of the brush shaft around the pivot axis causing a change in the magnitude of the radial distance.
  • This change in the magnitude of the radial distance can influence the conversion characteristics basically in two different ways as will be explained below.
  • the bristle faces away from the excenter axis. This means that if too much pressure is exerted upon the bristle, the pivoting of the brush shaft around the pivot axis will cause the radial distance to increase since the arm member will move away from the excenter body. Consequently, the stroke of the bristle will decrease; this will be registered by the user as a loss of power.
  • the bristle faces the excenter axis.
  • the pivoting of the brash shaft around the pivot axis will cause the radial distance to decrease since the arm member will move towards the excenter body. Consequently, the stroke of the bristle will increase as well as the power to be delivered by the electric motor. Finally, the motor will drop its frequency. This is clearly a completely other kind of signal to the user indicating an excessive contact pressure.
  • forcing means comprise spring means.
  • other kinds of forcing means such as magnetic actuators, could also be used.
  • a simple excenter pin as described in US patent 5,406,664 may be used as the excenter body, preferably a cam having an odd number of lobes, said number being equal to or larger than three, is used as the excenter body.
  • a cam enables a smooth reciprocating movement of the brash.
  • the preferred geometry of the cam follows a so-called Reuleaux curve.
  • Fig. 1 shows a longitudinal cross-sectional view of a first prefe ⁇ ed embodiment of the invention
  • Fig. 2 shows a longitudinal cross-sectional view of a second prefe ⁇ ed embodiment of the invention
  • Fig. 3 shows a longitudinal cross-sectional view of a third prefe ⁇ ed embodiment of the invention
  • Fig. 4 shows a longitudinal cross-sectional view of a fourth prefe ⁇ ed embodiment of the invention
  • Fig. 5 shows a longitudinal cross-sectional view of a fifth prefe ⁇ ed embodiment of the invention
  • Fig. 6 shows a longitudinal cross-sectional view of a sixth prefe ⁇ ed embodiment of the invention
  • Figs. 7a and 7b show the cross section according to the line VII- VII in the figures 1 to 3 in a neutral position and a non-neutral position, respectively;
  • Figs. 8a and 8b show the cross section according to the line VIII- VIII in the figures 4 to 6 in a neutral position and a non-neutral position, respectively, and Fig. 9 shows the cross-section according to the line LX-IX in the figures 1 to 6.
  • each toothbrush has a housing 7 within which an electric-motor 8 with an outgoing drive shaft 9, rotatable around a drive axis 18, is accommodated. On this drive shaft 9 a three- lobe cam 10 is mounted (see also the figures 7a, 7b, 8a and 8b).
  • a brash shaft 21 extends partly within the housing.
  • This brush shaft 21 contains three main shaft parts: a bristle shaft part 11, a connecting shaft part 12 and a fork shaft part 13.
  • the bristle shaft part 11 carries at its outer end a bristle 15 for contacting, with a certain contact force as indicated by an a ⁇ ow 14, the teeth of the user of the toothbrash. When the bristle 15 is worn out, the bristle shaft part 11 should be replaced. It is important to note already that the bristles 15 of the toothbrushes 1, 2 and 3 face in an opposite direction compared to the bristles 15 of the toothbrushes 4, 5, and 6. At its outer end, on the fork shaft part 13, a fork 16 with two arms 17a and 17b is mounted.
  • the fork shaft part 13 can rotate around the brash shaft axis 20 within the bearing unit 19 accommodated within housing 7.
  • the brush shaft axis 20 and the drive axis 18 are parallel to each other at a radial distance from each other which is indicated by a with double a ⁇ ow 22 in the figures 1 and 4.
  • Connecting shaft part 12 rigidly interconnects the bristle shaft part 11 and the fork shaft part 13.
  • the cam 10 is located within the arms 17a and 17b of the fork 16. A rotation of the drive shaft 9 with the cam 10 thus causes an oscillatory rotational movement of the brash shaft 21 with the bristle 15.
  • the brash shaft 21 is also pivotable around a pivot axis 23 extending perpendicularly to the brash shaft axis 20 through fork shaft part 13, since the bearing unit 19 is pivotable within the housing 7 as is shown in figure 9.
  • the bearing unit 19 is provided with two opposed pivot shaft parts 24a and 24b.
  • the tooth brashes 1, 2, 3, 4, 5, 6 are provided with spring means which operate between the bearing unit 19 near the free end of the fork shaft part 13 and the housing 7.
  • the various tooth brushes 1, 2, 3, 4, 5, 6 differ as regards the kind of spring means used.
  • the tooth brashes 1 and 4 make use of a leaf spring 25.
  • the tooth brushes 2 and 5 are provided with a compression spring 26 which is located at the same side of the brash shaft 21 as the bristle 15.
  • the tooth brushes 3 and 6 have a tension spring which is located at the side opposite the bristle 15.
  • the tooth brashes 2, 3, 5, 6 are provided with stop units 27, 28, 29, 30, respectively, which are rigidly connected to the housing 7.
  • tooth brashes 1, 2, 3, 4, 5, 6 Regarding the functioning of the tooth brashes 1, 2, 3, 4, 5, 6, a distinction should be made between tooth brashes 1, 2, 3 on the one hand and the tooth brashes 4, 5, 6 on the other hand.
  • the tooth brushes 1, 2, 3 operate as follows. If, starting from a neutral position (figure 7a), an excessive contact pressure 14 exists between the bristle 15 and the teeth of a user, the brash shaft 21 will pivot around the pivot axis 23, against the action of the spring means, to a non-neutral position (figure 7b). This will cause a radial movement of the fork 16, thus decreasing the radial distance 22. Due to this decrease of the radial distance 22, the stroke of the oscillatory rotational movement of the brush shaft 21 with the bristle 15 will also decrease; this will be registered by the user as a loss of power.
  • the tooth brashes 4, 5, 6 operate as follows.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Brushes (AREA)

Abstract

L'invention porte sur une brosse à dents électrique comprenant un moteur électrique qui entraîne en rotation un arbre menant autour d'un axe d'entraînement, un arbre de brosse dont la première extrémité libre externe est pourvue de poils, un dispositif de conversion qui convertit le mouvement rotatif de l'arbre d'entraînement en un mouvement rotatif réciproque de l'arbre de la brosse autour d'un axe en fonction des caractéristiques de conversion, et un dispositif de pivotement qui permet le pivotement d'au moins une partie de l'arbre de la brosse autour d'un axe pivot s'étendant perpendiculairement au sens longitudinal de l'arbre d'entraînement, d'une position de pivotement neutre et contre l'action d'un mécanisme de forçage à une position non neutre imputable aux forces s'exerçant sur les poils, le pivotement d'au moins une partie de l'arbre de la brosse autour de l'axe pivot par rapport à la position non neutre entraînant une modification des caractéristiques de conversion.
PCT/IB2003/000469 2002-02-20 2003-02-07 Brosse a dents electrique WO2003070122A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2003202765A AU2003202765A1 (en) 2002-02-20 2003-02-07 Electrically driven toothbrush
EP03701676A EP1478303A1 (fr) 2002-02-20 2003-02-07 Brosse a dents electrique
US10/504,761 US20050102773A1 (en) 2002-02-20 2003-02-07 Electrically driven toothbrush
JP2003569084A JP2005517489A (ja) 2002-02-20 2003-02-07 電動歯ブラシ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02075679 2002-02-20
EP02075679.7 2002-02-20

Publications (1)

Publication Number Publication Date
WO2003070122A1 true WO2003070122A1 (fr) 2003-08-28

Family

ID=27741172

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/000469 WO2003070122A1 (fr) 2002-02-20 2003-02-07 Brosse a dents electrique

Country Status (6)

Country Link
US (1) US20050102773A1 (fr)
EP (1) EP1478303A1 (fr)
JP (1) JP2005517489A (fr)
CN (1) CN1633262A (fr)
AU (1) AU2003202765A1 (fr)
WO (1) WO2003070122A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005074833A1 (fr) 2004-02-09 2005-08-18 Koninklijke Philips Electronics N.V. Dispositif d'entrainement d'au moins une tige de support de crins d'une brosse a dents
EP1905382A1 (fr) * 2006-09-29 2008-04-02 Trisa Holding AG Brosse à dents électrique et transmission pour une brosse à dents électrique

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US20070203439A1 (en) 2006-02-24 2007-08-30 Water Pik, Inc. Water jet unit and handle
USD802120S1 (en) 2007-02-27 2017-11-07 Water Pik, Inc. Tip for oral irrigator
US10258442B2 (en) 2009-03-20 2019-04-16 Water Pik, Inc. Oral irrigator appliance with radiant energy delivery for bactericidal effect
WO2014059362A2 (fr) 2012-10-11 2014-04-17 Water Pik, Inc. Dispositif de nettoyage interdentaire utilisant une alimentation en eau
US9642677B2 (en) 2013-03-14 2017-05-09 Water Pik, Inc. Oral irrigator with massage mode
KR102425192B1 (ko) 2013-03-15 2022-07-28 워터 피크 인코포레이티드 기계 구동식 음파 칫솔 및 워터 플로서
CA2932074C (fr) 2013-11-27 2018-04-17 Water Pik, Inc. Irrigateur buccal dote d'un interrupteur de pause coulissant
US9980793B2 (en) 2013-11-27 2018-05-29 Water Pik, Inc. Oral hygiene system
CN104968297B (zh) * 2013-12-04 2017-10-24 拉尼尔有限责任公司 用于电动装置的弹簧机构
CN203693808U (zh) 2013-12-12 2014-07-09 洁碧有限公司 牙科用喷水器
USD787189S1 (en) * 2014-03-17 2017-05-23 Gosmile, Llc Toothbrush
USD772396S1 (en) 2014-12-01 2016-11-22 Water Pik, Inc. Handheld oral irrigator
CN205586102U (zh) 2014-12-01 2016-09-21 洁碧有限公司 防水无线口腔冲洗器
CN205568226U (zh) 2015-07-08 2016-09-14 洁碧有限公司 刷牙装置
USD822196S1 (en) 2016-01-14 2018-07-03 Water Pik, Inc. Oral irrigator
USD782656S1 (en) 2016-01-25 2017-03-28 Water Pik, Inc. Oral irrigator
USD802747S1 (en) 2016-07-19 2017-11-14 Water Pik, Inc. Reservoir for oral irrigator
USD783809S1 (en) 2016-01-25 2017-04-11 Water Pik, Inc. Oral irrigator handle
US10835356B2 (en) 2016-01-25 2020-11-17 Water Pik, Inc. Swivel assembly for oral irrigator handle
USD819956S1 (en) 2016-01-25 2018-06-12 Water Pik, Inc. Kit bag
CA3012050C (fr) 2016-01-25 2020-12-08 Water Pik, Inc. Irrigateur buccal a facteur de forme reduit
USD794773S1 (en) 2016-07-19 2017-08-15 Water Pik, Inc. Oral irrigator
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USD786422S1 (en) 2016-01-25 2017-05-09 Water Pik, Inc. Oral irrigator
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USD783810S1 (en) 2016-02-22 2017-04-11 Water Pik, Inc. Handle for an oral irrigator
USD809650S1 (en) 2016-02-22 2018-02-06 Water Pik, Inc. Oral irrigator
CN109069242B (zh) 2016-03-02 2021-02-26 洁碧有限公司 用于口腔冲洗器的促动组件
USD782657S1 (en) 2016-03-02 2017-03-28 Water Pik, Inc. Oral irrigator handle
USD802119S1 (en) 2016-03-02 2017-11-07 Water Pik, Inc. Oral irrigator
US10561480B2 (en) 2016-05-09 2020-02-18 Water Pik, Inc. Load sensing for oral devices
USD809651S1 (en) 2016-07-19 2018-02-06 Water Pik, Inc. Combination base and reservoir for an oral irrigator
USD807822S1 (en) 2016-07-19 2018-01-16 Water Pik, Inc. Power supply cartridge
USD832420S1 (en) 2016-12-15 2018-10-30 Water Pik, Inc. Oral irrigator base
USD867579S1 (en) 2016-12-15 2019-11-19 Water Pik, Inc. Oral irrigator unit
USD845636S1 (en) 2016-12-15 2019-04-16 Water Pik, Inc. Toothbrush handle
USD822825S1 (en) 2016-12-15 2018-07-10 Water Pik, Inc. Oral irrigator unit
USD832418S1 (en) 2016-12-15 2018-10-30 Water Pik, Inc. Oral irrigator base
USD834180S1 (en) 2016-12-15 2018-11-20 Water Pik, Inc. Oral irrigator base
USD833600S1 (en) 2016-12-15 2018-11-13 Water Pik, Inc. Oral irrigator reservoir
CN115444606A (zh) 2016-12-15 2022-12-09 洁碧有限公司 带有磁性附连的口腔冲洗器
KR102565094B1 (ko) 2016-12-15 2023-08-10 워어터 피이크, 인코포레이티드 조명 피쳐가 있는 브러싱 장치
USD833000S1 (en) 2016-12-15 2018-11-06 Water Pik, Inc. Oral irrigator unit
USD840022S1 (en) 2016-12-15 2019-02-05 Water Pik, Inc. Oral irrigator handle
USD822826S1 (en) 2016-12-15 2018-07-10 Water Pik, Inc. Oral irrigator base
USD839409S1 (en) 2016-12-15 2019-01-29 Water Pik, Inc. Oral irrigator unit
USD825741S1 (en) 2016-12-15 2018-08-14 Water Pik, Inc. Oral irrigator handle
USD840023S1 (en) 2016-12-15 2019-02-05 Water Pik, Inc. Oral irrigator reservoir
USD832419S1 (en) 2016-12-15 2018-10-30 Water Pik, Inc. Oral irrigator unit
USD844997S1 (en) 2016-12-15 2019-04-09 Water Pik, Inc. Toothbrush handle
EP3554420B1 (fr) 2016-12-15 2021-05-19 Water Pik, Inc. Ensembles pivot et clapet de pause pour manche d'irrigateur buccal
USD829886S1 (en) 2016-12-15 2018-10-02 Water Pik, Inc. Oral irrigator base
USD833601S1 (en) 2017-02-06 2018-11-13 Water Pik, Inc. Oral irrigator
USD833602S1 (en) 2017-02-06 2018-11-13 Water Pik, Inc. Oral irrigator base
USD829887S1 (en) 2017-02-06 2018-10-02 Water Pik, Inc. Oral irrigator reservoir
USD868243S1 (en) 2018-03-16 2019-11-26 Water Pik, Inc. Oral irrigator tip
USD877324S1 (en) 2018-05-17 2020-03-03 Water Pik, Inc. Oral irrigator handle
USD889636S1 (en) 2019-02-22 2020-07-07 Water Pik, Inc. Water flosser
USD888936S1 (en) 2019-02-22 2020-06-30 Water Pik, Inc. Cordless water flosser
CN110251255B (zh) * 2019-04-15 2021-06-01 江西中聚宏新材料科技有限公司 一种电动牙刷
CN111166520B (zh) * 2020-01-17 2021-12-21 宋辉 一种自动超声洁治器和自动超声洁治方法
USD966498S1 (en) 2020-09-15 2022-10-11 Water Pik, Inc. Oral irrigator
USD1016274S1 (en) 2021-02-16 2024-02-27 Water Pik, Inc. Oral irrigator

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US4326314A (en) * 1978-11-17 1982-04-27 Les Produits Associes. Lpa Electrically driven hand-held apparatus for body care, in particular a toothbrush or massage apparatus
WO1992002159A1 (fr) * 1990-08-04 1992-02-20 Elektro-Wärme-Technik Siegfried Petz Brosse a dents electrique
EP0481553A1 (fr) 1990-10-15 1992-04-22 The Procter & Gamble Company Brosse à dents électrique
US5406664A (en) 1991-04-22 1995-04-18 Hukuba; Hiroshi Toothbrush

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Publication number Priority date Publication date Assignee Title
US4326314A (en) * 1978-11-17 1982-04-27 Les Produits Associes. Lpa Electrically driven hand-held apparatus for body care, in particular a toothbrush or massage apparatus
WO1992002159A1 (fr) * 1990-08-04 1992-02-20 Elektro-Wärme-Technik Siegfried Petz Brosse a dents electrique
EP0481553A1 (fr) 1990-10-15 1992-04-22 The Procter & Gamble Company Brosse à dents électrique
US5406664A (en) 1991-04-22 1995-04-18 Hukuba; Hiroshi Toothbrush

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005074833A1 (fr) 2004-02-09 2005-08-18 Koninklijke Philips Electronics N.V. Dispositif d'entrainement d'au moins une tige de support de crins d'une brosse a dents
EP1905382A1 (fr) * 2006-09-29 2008-04-02 Trisa Holding AG Brosse à dents électrique et transmission pour une brosse à dents électrique
WO2008040401A1 (fr) * 2006-09-29 2008-04-10 Trisa Holding Ag Brosse à dents électrique et engrenage pour une brosse à dents électrique
JP2010504775A (ja) * 2006-09-29 2010-02-18 トリサ ホールディング アクチェンゲゼルシャフト 電動歯ブラシと、電動歯ブラシ用の伝動装置
EP2272463A2 (fr) 2006-09-29 2011-01-12 Trisa Holding AG Brosse à dents électrique et transmission pour une brosse à dents électrique
EP2272463A3 (fr) * 2006-09-29 2012-09-19 Trisa Holding AG Brosse à dents électrique et transmission pour une brosse à dents électrique
DE202007019478U1 (de) 2006-09-29 2012-11-09 Trisa Holding Ag Elektrozahnbürste und Getriebe für eine Elektrozahnbürste
EP2548531A2 (fr) 2006-09-29 2013-01-23 Trisa Holding AG Brosse à dents électrique et transmission pour une brosse à dents électrique
US8365335B2 (en) 2006-09-29 2013-02-05 Trisa Holding Ag Electric toothbrush, and transmission for an electric toothbrush
US9125714B2 (en) 2006-09-29 2015-09-08 Trisa Holding Ag Electric toothbrush, and transmission for an electric toothbrush
US9572642B2 (en) 2006-09-29 2017-02-21 Trisa Holding Ag Electric toothbrush, and transmission for an electric toothbrush
US9968427B2 (en) 2006-09-29 2018-05-15 Trisa Holding Ag Electric toothbrush, and transmission for an electric toothbrush
EP3610830A1 (fr) 2006-09-29 2020-02-19 Trisa Holding AG Brosse enfichable pour une brosse à dents électrique

Also Published As

Publication number Publication date
JP2005517489A (ja) 2005-06-16
US20050102773A1 (en) 2005-05-19
CN1633262A (zh) 2005-06-29
EP1478303A1 (fr) 2004-11-24
AU2003202765A1 (en) 2003-09-09

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