WO2002067806A1 - Brosse a dents electrique - Google Patents

Brosse a dents electrique Download PDF

Info

Publication number
WO2002067806A1
WO2002067806A1 PCT/EP2002/002300 EP0202300W WO02067806A1 WO 2002067806 A1 WO2002067806 A1 WO 2002067806A1 EP 0202300 W EP0202300 W EP 0202300W WO 02067806 A1 WO02067806 A1 WO 02067806A1
Authority
WO
WIPO (PCT)
Prior art keywords
bristle carrier
control rod
disc
electric toothbrush
toothbrush according
Prior art date
Application number
PCT/EP2002/002300
Other languages
English (en)
Inventor
Alfred SCHÜTZ
Original Assignee
Novotech Ltd.
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
Priority claimed from DE10146543A external-priority patent/DE10146543A1/de
Application filed by Novotech Ltd. filed Critical Novotech Ltd.
Publication of WO2002067806A1 publication Critical patent/WO2002067806A1/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
    • A61C17/349—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor with multiple brush bodies
    • 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
    • A61C17/3436—Rotation around the axis perpendicular to the plane defined by the bristle holder
    • 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 electric toothbrush with a toothbrush shaft driven in rotation which drives in rotation a driving disc kinematically connected to a control rod which has a connection to a bristle carrier disc pivotably mounted in a toothbrush head about an axis set at right angles to the control rod.
  • control rod is formed as a rod which is able to pivot in a lead-through, with one end of the rod driven by the driving disc with a gyratory motion and the other end driving the bristle carrier disc with an oscillating motion.
  • the known toothbrush is relatively complicated in design, and cannot be manufactured entirely from plastic material.
  • the basic problem of the invention is to design an electric toothbrush of the kind stated at the outset so that it can be manufactured as inexpensively as possible.
  • This problem is solved in accordance with the invention by arranging at the control rod end towards the driving disc a crank movably mounted about a swivelling axis extending at right angles to the longitudinal axis of the control rod and by providing the crank end towards the driving disc with a slideway extending parallel with the swivelling axis and with which a guide body slidably engages, this guide body being eccentrically connected by its other end to the driving disc .
  • control rod is provided, within the toothbrush head, with a fork, set at right angles to its main extension direction, with which an eccentric cam of the bristle carrier disc engages, the control rod can be displaceably mounted in a straight guide, and need not have regions elastically deformable transversely with respect to its main extension.
  • the toothbrush head can have two sets of bristle tufts moving in opposite directions.
  • the toothbrush is capable of brushing a particularly large region of the teeth at once.
  • each of the two bristle carrier discs is surrounded by a bristle carrier ring, and for both the bristle carrier discs and the bristle carrier rings to be kinematically connected to the control rod.
  • the drive to the bristle carrier discs and bristle carrier rings can again be realized by forks and cams, by providing the control rod with two pairs of forks arranged opposite to one other, one pair behind the other, with an eccentric cam of either a bristle carrier disc or a bristle carrier ring engaging each fork .
  • the bristle carrier disc is given an optimal mounting in the toothbrush head by being connected fixedly in rotation to a bearing disc which, in its turn, pivotably rests on a bearing plate held fixedly in rotation in the toothbrush head.
  • the bristle carrier ring can be mounted in a similar way by being connected fixedly in rotation to a bearing ring which surrounds the bearing disc and which, in its turn, is pivotably mounted on the bearing plate.
  • Such an embodiment can have a particularly simple configuration if the bristle carrier ring is positioned radially on the bearing plate by axial projections of the bearing plate.
  • the electric toothbrush can be manufactured particularly inexpensively by making bearing plate, bearing disc and bearing ring in the form of metal sheets .
  • control rod with forks and crank in the form of metal sheets will also help to further reduce production costs .
  • Fig. 1 shows a longitudinal section through a forward region of a toothbrush according to the invention
  • Fig. 2 is an exploded perspective view of the region shown in Figure 1,
  • Fig. 3 is an exploded perspective view of the parts of a further embodiment of the toothbrush that are essential to the invention.
  • Fig.4 is a longitudinal section through a forward region of the toothbrush with the components of Figure 3,
  • Fig. 5 is a view from above of the important driving parts in the toothbrush head, as seen from above,
  • Fig. 6 is a similar view to Figure 5, as seen from below, Fig. 7 is an exploded perspective view of the parts of a further embodiment of the toothbrush that are essential to the invention,
  • Fig. 8 is a longitudinal section through a forward region of- the toothbrush with the components of Figure 7.
  • Figure 1 shows a brush casing 1, into which a toothbrush shaft 2 with a driving disc 3 projects.
  • a crank pin 4 with a ball-shaped guide body 5 projects eccentrically from the free end face of the driving disc 3. This guide body 5 engages a slideway 6 of a crank 7.
  • the crank 7 is connected, by the end remote from the guide body 5, to a control rod 9 by means of a swivel pin 8 which extends parallel with the slideway 6.
  • the control rod 9 has a knee region 10 in it for this purpose.
  • the end of the control rod 9 remote from the crank 7 is kinematically connected to a bristle carrier disc 11 which is mounted in a toothbrush head 16.
  • the exploded view in Figure 2 shows that the brush casing 1 consists of two casing halves la and lb. It can be seen that the control rod 10 has a shoulder 12 which is angled obliquely outwards and is eccentrically connected by an eccentric pin 13 to the bristle carrier disc 11.
  • the function of the drive will be easily understood from Figure 2.
  • the gyratory motion of the guide body 5 causes the crank 7 to swivel about its axis 8 as the guide body 5 slides to and fro in the slideway 6.
  • the swivelling action of the crank 7 causes the control rod 10 to move to and fro (to right and left as seen in Figure 2) , driving the bristle carrier disc 11 with an oscillatory motion.
  • the control rod 9 and the crank 7 are in the form of metal sheets.
  • This control rod 9 has two opposite to one other forks 24, 25 at its free end.
  • the to-and-fro motion of the control rod 9 in the longitudinal direction is imparted by the revolving driving disc 3 by its eccentric crank pin 4, in the same way as in the previously described embodiment.
  • the toothbrush shown in Figures 3 and 4 does not just have a bristle carrier disc 11 only, but also has a bristle carrier ring 14 that coaxially surrounds the bristle carrier disc 11.
  • the bearing disc 17 has three upwards pointing arms 19 and an eccentric cam 20 pointing the opposite way.
  • a bearing ring 21 which likewise has upwards pointing arms 22 and a downwards pointing eccentric cam 23.
  • This bearing ring 21 is likewise held on the bearing plate 15, and for this purpose has upwards pointing guide projections (not shown) .
  • Figure 4 shows how the bearing disc 17 and bearing ring 21 rest on the bearing plate 15 in the assembled condition, and are pivotable by means of the eccentric cams 20, 23 of the control rod 9 which engage the forks 24, 25 shown in Figure 3.
  • Figure 5 shows, viewed from above, the bearing plate 15 and the bearing disc 17 thereon, with its three upwards pointing arms 19 and the downwards pointing eccentric cam 20.
  • This cam 20 reaches through an opening 26 in the bearing plate 15.
  • the bearing ring 21 with its arms 22 and eccentric cam 23 can also be seen in Figure 5.
  • the cam 23 engages in a recess 27 in the rim of the bearing plate 15.
  • Figure 6 makes clear how the two eccentric cams 20 and 23 reach through the opening 26 and recess 27 respectively.
  • control rod 9 in this embodiment has two pairs of forks 24, 25 and 24', 25' arranged one behind the other .

Abstract

L'invention se rapporte à une brosse à dents électrique pourvue d'un manche de brosse à dents (2) actionné rotativement, ledit manche actionnant rotativement un disque moteur (3) cinématiquement relié à une tige de commande (9). Au niveau de l'extrémité de cette tige de commande (9), vers le disque moteur (3), un vilebrequin est fixé mobile autour d'un axe pivotant (8) qui s'étend perpendiculairement à l'axe longitudinal de la tige de commande (9). L'extrémité de ce vilebrequin (7), vers le disque moteur, est munie d'une partie coulissante (6) qui s'étend parallèlement à l'axe pivotant (8) et dans laquelle un corps de guidage (5) s'introduit de manière coulissante, ce corps de guidage étant relié de manière excentrée, au niveau de son autre extrémité, au disque moteur (3).
PCT/EP2002/002300 2001-02-27 2002-02-27 Brosse a dents electrique WO2002067806A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE10109313.6 2001-02-27
DE10109313 2001-02-27
DE10113461.4 2001-03-19
DE10113461 2001-03-19
DE10146543.2 2001-09-21
DE10146543A DE10146543A1 (de) 2001-02-27 2001-09-21 Elektrische Zahnbürste

Publications (1)

Publication Number Publication Date
WO2002067806A1 true WO2002067806A1 (fr) 2002-09-06

Family

ID=27214318

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/002300 WO2002067806A1 (fr) 2001-02-27 2002-02-27 Brosse a dents electrique

Country Status (1)

Country Link
WO (1) WO2002067806A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100350884C (zh) * 2004-03-23 2007-11-28 信利电子有限公司 竖刷式电动牙刷
US7810200B2 (en) * 2004-11-17 2010-10-12 Sanyo Electric Co., Ltd. Electric toothbrush
EP2543277A1 (fr) * 2011-07-06 2013-01-09 Braun GmbH Nettoyage de section d'un dispositif d'hygiène orale électrique
WO2023241523A1 (fr) * 2022-06-13 2023-12-21 雷德贵 Tête de brosse multifonctionnelle et brosse à dents électrique multifonctionnelle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1525112A (fr) * 1967-01-30 1968-05-17 Brosse à dents électrique à mouvement longitudinal et hélicoïdal à tête inclinée
US5033150A (en) * 1990-01-29 1991-07-23 Product Development (S.G.Z.) Ltd. Motor-driven toothbrush
DE19603851A1 (de) * 1996-02-05 1997-08-07 Finalpina Ag Elektrische Zahnbürste
DE19802904A1 (de) 1998-01-27 1999-07-29 Finalpina Ag Elektrische Zahnbürste
EP1072233A2 (fr) * 1999-07-30 2001-01-31 Addway Engineering Limited Brosse à dents électrique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1525112A (fr) * 1967-01-30 1968-05-17 Brosse à dents électrique à mouvement longitudinal et hélicoïdal à tête inclinée
US5033150A (en) * 1990-01-29 1991-07-23 Product Development (S.G.Z.) Ltd. Motor-driven toothbrush
DE19603851A1 (de) * 1996-02-05 1997-08-07 Finalpina Ag Elektrische Zahnbürste
DE19802904A1 (de) 1998-01-27 1999-07-29 Finalpina Ag Elektrische Zahnbürste
EP1072233A2 (fr) * 1999-07-30 2001-01-31 Addway Engineering Limited Brosse à dents électrique

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100350884C (zh) * 2004-03-23 2007-11-28 信利电子有限公司 竖刷式电动牙刷
US7810200B2 (en) * 2004-11-17 2010-10-12 Sanyo Electric Co., Ltd. Electric toothbrush
EP2543277A1 (fr) * 2011-07-06 2013-01-09 Braun GmbH Nettoyage de section d'un dispositif d'hygiène orale électrique
WO2013005184A1 (fr) * 2011-07-06 2013-01-10 Braun Gmbh Section de nettoyage pour un dispositif d'hygiène buccal électrique
US9364303B2 (en) 2011-07-06 2016-06-14 Braun Gmbh Cleaning section for an electric oral hygiene device
EP2543277B1 (fr) 2011-07-06 2016-06-22 Braun GmbH Nettoyage de section d'un dispositif d'hygiène orale électrique
EP2543278B1 (fr) 2011-07-06 2019-02-13 Braun GmbH Section de nettoyage d'un dispositif électrique d'hygiène orale
EP2543278B2 (fr) † 2011-07-06 2022-02-09 Braun GmbH Section de nettoyage d'un dispositif électrique d'hygiène orale
WO2023241523A1 (fr) * 2022-06-13 2023-12-21 雷德贵 Tête de brosse multifonctionnelle et brosse à dents électrique multifonctionnelle

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