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WO1992002159A1 - Brosse a dents electrique - Google Patents

Brosse a dents electrique Download PDF

Info

Publication number
WO1992002159A1
WO1992002159A1 PCT/EP1990/001281 EP9001281W WO9202159A1 WO 1992002159 A1 WO1992002159 A1 WO 1992002159A1 EP 9001281 W EP9001281 W EP 9001281W WO 9202159 A1 WO9202159 A1 WO 9202159A1
Authority
WO
WIPO (PCT)
Prior art keywords
toothbrush according
housing section
housing
drive motor
drive shaft
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.)
Ceased
Application number
PCT/EP1990/001281
Other languages
German (de)
English (en)
Inventor
Günter Petz
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.)
Elektro-Warme-Technik Siegfried Petz
Original Assignee
Elektro-Warme-Technik Siegfried Petz
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 Elektro-Warme-Technik Siegfried Petz filed Critical Elektro-Warme-Technik Siegfried Petz
Priority to EP90913156A priority Critical patent/EP0494878A1/fr
Priority to PCT/EP1990/001281 priority patent/WO1992002159A1/fr
Publication of WO1992002159A1 publication Critical patent/WO1992002159A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • A61C17/3445—Translation along the axis of the toothbrush handle
    • 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
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C2204/00—Features not otherwise provided for
    • A61C2204/002—Features not otherwise provided for using batteries

Definitions

  • the invention relates to an electric toothbrush with a handle housing for accommodating the drive motor, switching elements and electrical energy source, in which the drive motor longitudinally moves and / or partially rotates a drive shaft for a brush body that can be coupled to the drive shaft.
  • Electric toothbrushes have the defect that under the influence of the motor-generated oscillating movements or partial rotations of the brush body, the perception of the respective pressing force of the brush body on the teeth and the gums cannot be determined, as a result of which impermissible pressing forces are often used that lead to injuries and make the use of electric toothbrushes unsafe.
  • the handle housing is formed by two housing sections which are connected to one another by a joint, one housing section of which guides the drive shaft of the brush body and can be pivoted against spring force between two end positions to the longitudinal axis of the other housing section and that the pivotable one Housing section directly or indirectly a switching contact element of a switch arranged in the circuit of an optical and / or acoustic display in one End position opens and closes in the pivoted position or vice versa.
  • the optical and / or acoustic signal details can optionally be coupled with the simultaneous or delayed stop of the drive motor when the maximum force is reached.
  • the spring force is designed to be adjustable. This means that the contact pressure is individually adjustable 5 and signal information is given when the set value is reached.
  • the spring force can be applied by a spring element, for example a shear spring or a leaf spring, and can act linearly or progressively. It is also conceivable to form the spring force by a body made of a 0 resilient elastic body such as a rubber body, which is by the pressing force ver ⁇ moldable.
  • the drive motor is preferably 5 firmly connected to the tiltable housing section and that the drive motor is used as an actuating element for the switching contact element.
  • the pivotable housing section itself forms the actuating member for the switching contact element.
  • the optical display is formed by an electric incandescent lamp.
  • a light-emitting diode as an optical display is preferably possible. It is also conceivable for the optical display to be white or colored.
  • a buzzer, a bell or the like can be used as an acoustic indicator. serve, the acoustic or optical display in the housing section being accommodated in a liquid-tight manner and the intensity of the displays being changeable by means of an adjustable cover or diaphragm.
  • the acoustic display can be arranged in a sound or resonance chamber with a sound outlet opening, which itself or its sound outlet opening can be changed in size by a cover body.
  • a housing section carries the drive motor, the switching elements and electrical energy source and the drive shaft with a plug-on brush body, that this housing section in the central opening of a hollow-cylindrical second housing section with play around a cross to the central longitudinal axis of the same extending axis is arranged so as to be pivotable against spring force and that the latter housing section opens directly or indirectly — a switching contact element arranged in the circuit of an optical and / or acoustic display in the one end position and in the pivoting position closes or vice versa.
  • a toothbrush that can already be used is inserted as a structural unit in a second housing section and the pivoting movements of the toothbrush can be used to trigger visual and / or acoustic displays.
  • a chargeable galvanic element e.g. to use a battery or an accumulator.
  • the galvanic element can expediently be chargeable by a charging device, the charging device preferably having an inductive effect and the secondary winding of which is arranged in the housing section holding the pivotable housing section.
  • a particularly user-friendly design of the Q toothbrush is furthermore obtained if the handle housing is formed by firmly connected housing sections and the housing sections by means of a joint, the drive motor with gear and the drive shaft with brush body as independent Hold the assembly pivotably between two end positions against spring force and the assembly opens directly or indirectly a switch contact element of a switch arranged in the circuit of an optical and / or acoustic display in one end position and closes or vice versa in a pivoted position.
  • the particular advantage of the toothbrush designed in this way is the small size of the mass to be actuated for pivoting, as a result of which the toothbrush is sensitive to its display activity.
  • the end of the drive shaft facing away from the drive motor preferably projects axially beyond the free end of one housing section with a partial length and passes through it with play, which is the prerequisite for unobstructed swiveling for the brush body.
  • the axis of the joint can be designed as desired in the two housing sections.
  • the axis of the joint can be offset, for example by the central axis of the housing sections or radially to the central axis, or there is the possibility of arranging the axis of the joint in the housing sections with any axial distance from the brush body.
  • the separation area between the brush body and the approximated housing section is tightly gripped by a bellows made of flexible or resiliently elastic material. The bellows prevents liquid from entering the housing sections.
  • 1 is a toothbrush m side view, partly in section, 2 a section of a modified toothbrush in side view, partly in section,
  • FIG. 3 shows a section of a toothbrush according to FIG. 2 in a pivoting position in a side view, partly in section,
  • FIG. 4 shows a switch contact element enlarged
  • Fig. 6 shows a toothbrush of another design, partly in section
  • FIG. 7 shows a section of a toothbrush according to a further embodiment in the rest position, partly in section and
  • Fig. 8 is a Section ⁇ tück a toothbrush of FIG. 7 in the operating position, partially in section.
  • FIG. 1 denotes a first housing section of an electric toothbrush, which serves to hold a drive motor 2 with a gear 3, an energy source 4, a buzzer 19 and a part 6 of an electrical charging device.
  • 9 denotes a further housing section which is pivotally connected to the housing section 1 and which guides a drive shaft 10 for a brush body 11 and, in the exemplary embodiment, firmly supports the drive motor 2.
  • a spring element 18, for example a helical spring, is clamped between the housing sections 1 and 9 and permanently moves or holds the housing section 9 into the end position pivoted down in FIG. 1.
  • the actuator for a switch 13 of the drive motor 2 is designated by 12.
  • the drive motor 2 carries, in isolation, a contact 14 to which another contact 15 on the housing seabschmtt 1 is placed opposite in the distance.
  • the contacts 14, 15 form a switch and are connected via electrical conductors 16 and 17 to the energy source 4 and the optical and / or acoustic display 19, a buzzer in the exemplary embodiment.
  • the pressing force acting on the brush body 11 exerts a torque on the housing section 9, which is directed against the spring force 18.
  • the housing section 9 is pivoted in alignment with the central longitudinal axis 7 of the housing section 1, the contacts 14, 15 making contact with one another and closing the current circuit of the energy source 4 and buzzer 19.
  • a buzzer sound is displayed to the user, which means that a predetermined pressure force has been reached.
  • the helical spring 18 moves the housing section 9 back in the direction of the position shown in FIG. 1.
  • the contacts 14 and 15 are separated from one another and the buzzer tone goes out.
  • the contact 15 is resiliently mounted 23, whereby after contacting the contacts 14, 15 an overstroke for the housing portion 9 is possible.
  • a housing section 9 is also pivotably arranged on the housing section 1 by means of the joint 8 and the housing section 9 is pivotable against the spring force 18.
  • the housing sections 1 and 9 themselves carry the contacts 14, 15, so that when the housing section 9 is pivoted, it is possible to close the current circuit of the acoustic display 19 and energy source 4 by contacting the contacts 14, 15.
  • the display 19 formed by a buzzer is assigned a cover body 22, which is fixed, for example, to the drive motor 2 and can be applied to it (FIG. 2) or more or less far away (FIG. 3) to change the intensity of the acoustic display.
  • the cover body 22 is preferably formed by a molded part made of a foamed plastic.
  • the swiveling housing section 9 is connected to the housing section 1 by a joint 8.
  • the axis of the joint 8 extends in the region of the central longitudinal axis of the housing section 1.
  • the spring force 18 is, e.g. applied by a leaf spring, the legs 18 ', 18' 'of which act in such a way that in the rest position the housing section 9 permanently assumes the pivoted-off position.
  • the drive shaft 10 for the brush body 11 can be designed and guided as desired. So the possibility is given, e.g. to use a flexible drive shaft 10.
  • the housing section 6 is a housing section 1, which receives a drive motor 2 with gear 3, an energy source 4 and an acoustic display 19, as well as the drive shaft 10 for the plug-on brush body 11, as an independent toothbrush ⁇ shows.
  • the housing section 1 is accommodated in a hollow cylindrical housing section 24 by means of the joint 8 and can be pivoted in the clockwise direction of rotation against the force of a helical spring 18 under the influence of the pressing force from the position shown in FIG. 6.
  • the housing sections 24 and 1 carry contacts 14, 15 which are in the circuit of the energy source 4 and the acoustic signal device 19. If a pressure force is exerted on the brush body (not shown) when using the toothbrush according to FIG.
  • the housing section 1 is pivoted counter to the spring force 18 in the clockwise direction of rotation, the contacts 14, 15 are brought into contact with one another and the circuit of Energy source 4 and buzzer 19 closed.
  • the coil spring 18 can be variably prestressed by an adjusting screw 25.
  • 26 i ⁇ t Betchanists ⁇ a button for a switch '27 denotes the source of the energy to the drive motor 4 2 connects or disconnects.
  • optical displays e.g. electric light bulbs or light-emitting diodes can be used.
  • the housing section 9 as an actuating member of the switchable member of a variable resistor (not shown) arranged in the circuit of the optical and / or acoustic display, in order to change the switchable member by changing the resistance to a greater or lesser extent Brightness or volume controls to achieve the displays 19.
  • the housing sections 1 and 9 are firmly connected to one another and form an integral toothbrush housing.
  • the housing sections 1 and 9 take a drive motor 2 with gear 3 and an acoustic display 19, e.g.
  • a drive shaft 10 is connected to the gear 3, which holds the brush body 11.
  • a current source that mediates Electrical conductor 16, 17 can be connected to buzzer 19 via contacts 14, 15 or can be connected to drive motor 2 via further conductors and a switch 12.
  • the electric motor 2, the gear 3 and the drive shaft 10 with the brush body 11 form an independent unit which is supported in the housing sections 1, 9 by a joint 8.
  • the hinge 8 can be arbitrarily in the region of the central longitudinal axis of the housing sections 1, 9 or axially offset from it. It is also conceivable that the joint 8 with different sizes
  • the drive motor 2 is supported by means of a spring element, e.g. a helical spring 18 onto the housing section 1, which causes the brush body 11 to pivot against the action of the spring element 18.
  • a spring element e.g. a helical spring 18 onto the housing section 1, which causes the brush body 11 to pivot against the action of the spring element 18.
  • the drive motor 2 with gear 3, the drive shaft 10 and the brush body 11 are in the rest position. In this position, under the influence of the helical spring 18, the drive motor is moved into an end position counter-clockwise. Here, the contacts 14, 15 are spaced from one another and the acoustic display 19 is separated from the power source 4.
  • the drive motor 2 and the gear 3 are moved into the position of FIG. 8 against the spring force 18.
  • the contacts 14, 15 come into contact with one another and the current circuit from current source 4 and the acoustic display 19 are closed, as a result of which a buzzing tone is generated.
  • the cover body 22 releases the acoustic display 19, which is audible at a higher volume.
  • the contacts 14, 15 and possibly also the spring element 18 can be arranged anywhere between the drive motor 2 or gear 3 and the housing sections 1, 9.
  • the structural unit formed by the drive motor, gearbox and drive shaft and brush body swings back into the position of FIG. 7, the contacts 14, 15 being separated and the cover body 22 on the acoustic display 19 created.
  • the formation of the contact 15 on a spring element ensures that in the pivoted positions the electric motor and the cover body can carry out an overtravel even when the indicator is actuated, so that the volume can be adjusted.

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

Une brosse à dents électrique comprend un manche qui forme un logement pour le moteur d'entraînement, pour des éléments commutateurs et pour une source d'énergie électrique. Le moteur d'entraînement déplace longitudinalement et/ou fait tourner partiellement au moyen d'un engrenage un arbre d'entraînement du corps de la brosse susceptible d'être couplé à l'arbre d'entraînement. Afin de détecter des forces de sollicitation du corps de la brosse qui excluent toute lésion, le logement est formé de deux sections (1, 9) mutuellement reliées par une articulation. La première section (9) du logement guide l'arbre d'entraînement (10) du corps (11) de la brosse, est pivotant entre deux positions terminales par rapport à l'axe longitudinal de l'autre section (1) du logement, contre la force d'un ressort (18), et actionne directement ou indirectement un élément (14) de contact d'un commutateur agencé dans le circuit d'un indicateur (19) optique et/ou acoustique, de manière à ouvrir celui-ci dans une position terminale et à le fermer dans la position déployée ou vice-versa.
PCT/EP1990/001281 1990-08-04 1990-08-04 Brosse a dents electrique Ceased WO1992002159A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP90913156A EP0494878A1 (fr) 1990-08-04 1990-08-04 Brosse a dents electrique
PCT/EP1990/001281 WO1992002159A1 (fr) 1990-08-04 1990-08-04 Brosse a dents electrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1990/001281 WO1992002159A1 (fr) 1990-08-04 1990-08-04 Brosse a dents electrique

Publications (1)

Publication Number Publication Date
WO1992002159A1 true WO1992002159A1 (fr) 1992-02-20

Family

ID=8165509

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/001281 Ceased WO1992002159A1 (fr) 1990-08-04 1990-08-04 Brosse a dents electrique

Country Status (2)

Country Link
EP (1) EP0494878A1 (fr)
WO (1) WO1992002159A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5412827A (en) * 1993-07-30 1995-05-09 U.S. Philips Corporation Toothbrush
US5423102A (en) * 1994-08-19 1995-06-13 Madison; Ava Portable cleaning device
US5467494A (en) * 1993-07-30 1995-11-21 U.S. Philips Corporation Toothbrush
US5493747A (en) * 1993-07-27 1996-02-27 Matsushita Electric Works, Ltd. Electric toothbrush
US5784742A (en) * 1995-06-23 1998-07-28 Optiva Corporation Toothbrush with adaptive load sensor
US5815872A (en) * 1997-08-08 1998-10-06 Optiva Corporation Pressure overload indicator system for power toothbrushes
WO2003070122A1 (fr) * 2002-02-20 2003-08-28 Koninklijke Philips Electronics N.V. Brosse a dents electrique
WO2005067813A1 (fr) * 2004-01-13 2005-07-28 Glaxo Group Limited Brosse a dents electrique repliable
US20110314677A1 (en) * 2009-02-13 2011-12-29 Eveready Battery Company Inc. Body care device
US10485329B2 (en) 2015-05-15 2019-11-26 Dyson Technology Limited Cleaning appliance
US10555600B2 (en) 2016-10-26 2020-02-11 Dyson Technology Limited Cleaning appliance
US11284979B2 (en) 2016-10-26 2022-03-29 Dyson Technology Limited Cleaning appliance
CN116782785A (zh) * 2020-12-10 2023-09-19 高露洁-棕榄公司 口腔护理器具及其柄部
US20230338125A1 (en) * 2019-05-02 2023-10-26 Braun Gmbh Personal care device
US11911230B2 (en) 2018-06-20 2024-02-27 Dyson Technology Limited Dental treatment appliance
US12036081B2 (en) 2018-06-20 2024-07-16 Dyson Technology Limited Dental treatment appliance

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2016984A1 (fr) * 1969-05-14 1970-11-19
CH609238A5 (en) * 1976-03-29 1979-02-28 Lpa Les Produits Associes Manual personal hygiene device with a treatment instrument which can be driven by ultrasonic vibrations
GB2097663A (en) * 1981-04-30 1982-11-10 Wuertt Parfuemerie Electric toothbrush
EP0158870B1 (fr) * 1984-04-18 1988-05-04 Blendax GmbH Brosse à dents

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2016984A1 (fr) * 1969-05-14 1970-11-19
CH609238A5 (en) * 1976-03-29 1979-02-28 Lpa Les Produits Associes Manual personal hygiene device with a treatment instrument which can be driven by ultrasonic vibrations
GB2097663A (en) * 1981-04-30 1982-11-10 Wuertt Parfuemerie Electric toothbrush
EP0158870B1 (fr) * 1984-04-18 1988-05-04 Blendax GmbH Brosse à dents

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5493747A (en) * 1993-07-27 1996-02-27 Matsushita Electric Works, Ltd. Electric toothbrush
US5412827A (en) * 1993-07-30 1995-05-09 U.S. Philips Corporation Toothbrush
US5467494A (en) * 1993-07-30 1995-11-21 U.S. Philips Corporation Toothbrush
US5423102A (en) * 1994-08-19 1995-06-13 Madison; Ava Portable cleaning device
US5784742A (en) * 1995-06-23 1998-07-28 Optiva Corporation Toothbrush with adaptive load sensor
US5815872A (en) * 1997-08-08 1998-10-06 Optiva Corporation Pressure overload indicator system for power toothbrushes
WO2003070122A1 (fr) * 2002-02-20 2003-08-28 Koninklijke Philips Electronics N.V. Brosse a dents electrique
WO2005067813A1 (fr) * 2004-01-13 2005-07-28 Glaxo Group Limited Brosse a dents electrique repliable
US20110314677A1 (en) * 2009-02-13 2011-12-29 Eveready Battery Company Inc. Body care device
US9126346B2 (en) * 2009-02-13 2015-09-08 Trisa Holding Ag Body care device
US10485329B2 (en) 2015-05-15 2019-11-26 Dyson Technology Limited Cleaning appliance
US10555600B2 (en) 2016-10-26 2020-02-11 Dyson Technology Limited Cleaning appliance
US11284979B2 (en) 2016-10-26 2022-03-29 Dyson Technology Limited Cleaning appliance
US12127899B2 (en) 2016-10-26 2024-10-29 Dyson Technology Limited Cleaning appliance
US11911230B2 (en) 2018-06-20 2024-02-27 Dyson Technology Limited Dental treatment appliance
US12036081B2 (en) 2018-06-20 2024-07-16 Dyson Technology Limited Dental treatment appliance
US20230338125A1 (en) * 2019-05-02 2023-10-26 Braun Gmbh Personal care device
CN116782785A (zh) * 2020-12-10 2023-09-19 高露洁-棕榄公司 口腔护理器具及其柄部

Also Published As

Publication number Publication date
EP0494878A1 (fr) 1992-07-22

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