CA1115467A - Electrically driven tooth brush - Google Patents
Electrically driven tooth brushInfo
- Publication number
- CA1115467A CA1115467A CA309,920A CA309920A CA1115467A CA 1115467 A CA1115467 A CA 1115467A CA 309920 A CA309920 A CA 309920A CA 1115467 A CA1115467 A CA 1115467A
- Authority
- CA
- Canada
- Prior art keywords
- brush
- crank
- pin
- casing
- tooth brush
- 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.)
- Expired
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
- A61C17/40—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like orbiting, e.g. nutating
-
- 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
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)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The present invention relates to an electrically driven tooth brush which enables the brush to selectively perform a rotational motion or reciprocal motion, in which the output of the motor through a reduction device is transmitted to a crank via a bevel gear. A crank pin integral with the crank is inserted in a guide groove in the base portion of a holder of the brush, and a guide pin is inserted in said guide groove. A switching member for determining the position of the crank pin in the guide groove is provided such that the rotational motion or the laterally oriented reciprocal motion is given to the brush with the guide pin as a fulcrum.
The present invention relates to an electrically driven tooth brush which enables the brush to selectively perform a rotational motion or reciprocal motion, in which the output of the motor through a reduction device is transmitted to a crank via a bevel gear. A crank pin integral with the crank is inserted in a guide groove in the base portion of a holder of the brush, and a guide pin is inserted in said guide groove. A switching member for determining the position of the crank pin in the guide groove is provided such that the rotational motion or the laterally oriented reciprocal motion is given to the brush with the guide pin as a fulcrum.
Description
111~4ti7 The present invention relates to an electrically driven tooth brush which mQves the brush in ideal directions.
The present invention will be illustrated by way of the accompanyin~ drawings in which:-F~gure 1 is a front view showing the motion of aconventional tooth brush;
Figure 2 is a perspective view showing the motion of a brush according to the present invention;
Figure 3 is a sectional view showing an example of brushing operation according to the present invention;
Figure 4 is a perspective view showing another example of brushing operation according to the present invention;
Figure 5 is a perspective view showing a further example of brushing operation according to the present invention;
Figure 6 is a perspective view showing an electrically driven tooth brush according to one embodiment of the present invention;
Figure 7 is a sectional side view showing an internal mechanism of the electrically driven tooth brush of Figure 6;
- 20 and Figure 8 is an exploded perspective view of an important portion of the electrically driven tooth brush of Figure 6.
Heretofore as shown in Figure 1, a tooth brush 1 is reciprocally moved with respect to the row of teeth 2, irrespective of whether it is manually operated or electrically operated. The recessed portions of the row of teeth 2 are thus not sufficiently brushed. The brushing is effected only on the surface portions of the teeth on which less dental dirt has accumulated, Therefore conventional brushes are not sufficient for preventing the teeth from being decayed.
Applicant has now ound that dental dirt is most effectively removed when the brush 1 is rotated as represented -1- ~P
11~54fi7 by arrow a in Figure 2, and in some portions of the tooth row, it is necessary to reclprocally move the brush 1 as indicated by arrow _. Thus~ to remove the dental dirt 5 accumulated in a gum groove between a tooth 3 and the gum 4, the brush 1 should be rotated in the direction of arrow a as shown in Figure 3, so that hairs on the brush 1 perfor~ a reversed conical motion with the tips of the hairs in contact with the grum groove and further, with the tips of the hairs as apex, enabling the tooth dirt 5 to be removed almost completely. Further, the teeth can also be cleaned when the brush 1 is revolved with respect to the occluding surfaces while the brush 1 is turned, the hair tips serving as non-movin~ points perform the aforesaid reversed conical motion accompanying the turning motion of the brush. In this case, the halr tips serving as non moving points scrape off the dirt on the surface of the teeth, and spring out the waste substances when the direction of motion is changed, making it possible to clean the ruggid occluding surfaces as well as the gum grooves.
It has further long been known that tooth dirt and residual foods accumulated in the neck of teeth are effectively removed when the brush 1 is reciprocally moved in the direction of arrow b as shown in Figure 5.
The present invention, therefore, provides an electrically dr~ven brush which enables the brush to be turned as well as to be reciprocally moved to attain the effective cleaning operation.
The present invention thus provides an electrically driven tooth brush which enables the brush portion to selectively perform the turnlng motion or the reclprocal motion.
The present invention also provides an electrically driven tooth brush by which the ha;~r tips of the brush inserted in the sum grooves perform the motion describing a reversed conical , .
. :, ~ ' ' ` ., ~54~i7 locus with the hair tips as ~pex while the brush performs the rotating operation, or the brush perform the mot~on like that of a wiper of an automobile while the brush performs the reciprocal operation, such that the dental dirt in the gum grooves are sprung out by the tips of the brush.
The present invention further provides an electrically driven tooth brush by which the brush is rotated or reciprocally moved by the manipulation of a switching member, such that the occluding surfaces on the ruggid molar portions and the gum grooves which are difficult to be brushed can be easily cleaned without requiring any particular skill.
According to the present invention there is provided an electrically driven tooth brush comprising a casing, a brush holder extending from said casing and having a brush detachably mounted at a front end thereof, said brush holder being rotatable and slideable in said casing which is ~rovided with a power supply battery/ a motor and a reduction mechanism for the motor, a crank pin integral with a crank which is adapted to be rotated by the motor via the reduction mechanism, a guide pin mounted on the casing parallel to the crank pin, a guide groove in the brush holder in which the crank pin and the guide pin are slidably ` inserted, and a switching member slidably mounted to move between the crank pin and`the guide pin in the guide groove, said switching member being capable of fixing either one of the crank pin or the guide pin, whereby a rotational motion or a laterally oriented reciprocal motion is given to the brush member.
Referr;ng now to Figures 6 to 8, a casing 10 contains a recharseable power-supply battery 11 and a motor 12. The battery 11 and the motor 12 are connected together via a poWer supply switch 13 in the casIng 10. The power supply switch 13 functions to turn on or off the motor 12, as well as to change the rotation of the motor 12 in the forward direction or in the reverse ll~S4~
direction. To said battery 11 is connected a plug 14 for recharging. The plug 14 can retractably extend beyond the rear surface of the casing 10. To the output shaft of the motor 12 is connected a planetary gear-type reduction devlce 15, and the output shaft of the planetary gear-type reduction device 15 is connected via a gear 17 to a rotary shaft 16 supported by the casing 10. To the rotary shaft 16 is fastened a crank 18 on which is mounted a crank pin 19 which is parallel to said shaft 16. A guide pin 20 which is parallel to said crank pin 19 is fastened to said casing 10. The crank pin 19 and guide pin 20 are slidably inserted in a guide groove 22 in which is detachably inserted a brush 23, said guide groove 22 being formed in the back and forth directions along a brush holder 21. The brush holder 21 is located on a flat portion of the casing 10. A
switching member 24 is located on the upper surface of said brush holder 21 to cover the upper surface of the guide groove 22, the rear surface of said switching member 24 facing the crank pin 19 and the front surface of said switching member 24 facing to the guide pin 20. The switching member 24 slides on the brush holder 21 along the guide groove 22. Further, between the brush holder 21 and the switching member 24 is interposed a stop member (not shown), so that the switchin~ member 24 is stopped at the front end and the rear end of the guide gxoove 22. An operation fitting 25 is slidably mounted in said groove 22 in such a manner that its head portion is exposed above the groove of the casing 10;
whereby said switching member 24 can be slid overcoming the force of sa~d stop mechanism.
With the thus constructed electrically driven tooth brush, when the motor 12 is rotated, the rotational speed is reduced via the planetary gear-type reduction device 15. The crank pin 19 is then turned via the bevel gears 17 about the rotary shaft 16. In this case, when the switching member 24 is engaged with the brush , -4-. ~ .
11~5467 holder 21 with said switching member being moved to the rear end as shown in ~igure 8, the crank pin l9 is held between the rear end of the switching member 24 and the rear end of the guide groove 22. The rear end of the brush holder 21 is then caused to turn with the turning motion of the crank pin 19. Since sufficient distance is maintained between the guide pin 20 mounted on the casing 10 and the front end of the switching member 24, the brush holder 21 is caused to extend and retract while swinging in the right and left directions with the guide pin 20 as a fulcrum. That is, when the swinging member 24 is so moved as to reduce the effective length of the guide groove 22 with respect to the crank pin 19, the holder 21 performs the turning motion accompanying the turning motion of the crank pin 19 thereby-causing the brush 23 attached to the front portion of the holder 21 to turn in the direction of arrow A.
; Further, when the switching member 24 is moved forward to reduce the effective length of the guide groove 22 with respect to the guide pin 20, the effective length of the guide groove 22 with respect to the crank pin 19 is lengthened whereby the crank pin 19 is allowed to slide in the back and forth directions in the guide groove 22, and the guide pin 20 serves as a fulcrum for the brush holder 21. Therefore, when the cran~ pin 19 is turned by the rotational force of the motor 12, the crank pin l9 `~ slides back and forth in the guide groove 22 while the rear end of the brush holder 21 swinqs in the right and left directions. As a result, the brush holder 21 oscillates toward the right and left with the guide pin 20 as a fulcrum causing the brush 23 to perform the reciprocat~ng motion in the direction of arrow B like that of a wire of an automobile. The turning direction of the brush 23 can of course be reversed by reversing the power supply swiitch 13.
In the above-mentioned embodiment, a rechargeable battery . . :: ,.
~l~S467 is employed as a power-supply battery to attain the economical advantage, a planetary gear-type reduction device is used as a reduction mechanism to reduce the size of the reduction device, ... r the same guide groove is used for the crank pin and for the guide pin ~o simplify the shape of the brush holder, and the effective length of said guide groove is changed to effect the changing between the turning motion and the reciprocating motion to simplify the changing member and its mechanism. It should, ; however, be noted that the present invention is by no means limited to the set up of the aforementioned embodiment. It is desired that the tooth brush is turned at a speed of 170 revolutions to 230 revolutions per minute, so that the turning speed is nearly equal to that of the speed when the brush is moved by human hand.
The present invention will be illustrated by way of the accompanyin~ drawings in which:-F~gure 1 is a front view showing the motion of aconventional tooth brush;
Figure 2 is a perspective view showing the motion of a brush according to the present invention;
Figure 3 is a sectional view showing an example of brushing operation according to the present invention;
Figure 4 is a perspective view showing another example of brushing operation according to the present invention;
Figure 5 is a perspective view showing a further example of brushing operation according to the present invention;
Figure 6 is a perspective view showing an electrically driven tooth brush according to one embodiment of the present invention;
Figure 7 is a sectional side view showing an internal mechanism of the electrically driven tooth brush of Figure 6;
- 20 and Figure 8 is an exploded perspective view of an important portion of the electrically driven tooth brush of Figure 6.
Heretofore as shown in Figure 1, a tooth brush 1 is reciprocally moved with respect to the row of teeth 2, irrespective of whether it is manually operated or electrically operated. The recessed portions of the row of teeth 2 are thus not sufficiently brushed. The brushing is effected only on the surface portions of the teeth on which less dental dirt has accumulated, Therefore conventional brushes are not sufficient for preventing the teeth from being decayed.
Applicant has now ound that dental dirt is most effectively removed when the brush 1 is rotated as represented -1- ~P
11~54fi7 by arrow a in Figure 2, and in some portions of the tooth row, it is necessary to reclprocally move the brush 1 as indicated by arrow _. Thus~ to remove the dental dirt 5 accumulated in a gum groove between a tooth 3 and the gum 4, the brush 1 should be rotated in the direction of arrow a as shown in Figure 3, so that hairs on the brush 1 perfor~ a reversed conical motion with the tips of the hairs in contact with the grum groove and further, with the tips of the hairs as apex, enabling the tooth dirt 5 to be removed almost completely. Further, the teeth can also be cleaned when the brush 1 is revolved with respect to the occluding surfaces while the brush 1 is turned, the hair tips serving as non-movin~ points perform the aforesaid reversed conical motion accompanying the turning motion of the brush. In this case, the halr tips serving as non moving points scrape off the dirt on the surface of the teeth, and spring out the waste substances when the direction of motion is changed, making it possible to clean the ruggid occluding surfaces as well as the gum grooves.
It has further long been known that tooth dirt and residual foods accumulated in the neck of teeth are effectively removed when the brush 1 is reciprocally moved in the direction of arrow b as shown in Figure 5.
The present invention, therefore, provides an electrically dr~ven brush which enables the brush to be turned as well as to be reciprocally moved to attain the effective cleaning operation.
The present invention thus provides an electrically driven tooth brush which enables the brush portion to selectively perform the turnlng motion or the reclprocal motion.
The present invention also provides an electrically driven tooth brush by which the ha;~r tips of the brush inserted in the sum grooves perform the motion describing a reversed conical , .
. :, ~ ' ' ` ., ~54~i7 locus with the hair tips as ~pex while the brush performs the rotating operation, or the brush perform the mot~on like that of a wiper of an automobile while the brush performs the reciprocal operation, such that the dental dirt in the gum grooves are sprung out by the tips of the brush.
The present invention further provides an electrically driven tooth brush by which the brush is rotated or reciprocally moved by the manipulation of a switching member, such that the occluding surfaces on the ruggid molar portions and the gum grooves which are difficult to be brushed can be easily cleaned without requiring any particular skill.
According to the present invention there is provided an electrically driven tooth brush comprising a casing, a brush holder extending from said casing and having a brush detachably mounted at a front end thereof, said brush holder being rotatable and slideable in said casing which is ~rovided with a power supply battery/ a motor and a reduction mechanism for the motor, a crank pin integral with a crank which is adapted to be rotated by the motor via the reduction mechanism, a guide pin mounted on the casing parallel to the crank pin, a guide groove in the brush holder in which the crank pin and the guide pin are slidably ` inserted, and a switching member slidably mounted to move between the crank pin and`the guide pin in the guide groove, said switching member being capable of fixing either one of the crank pin or the guide pin, whereby a rotational motion or a laterally oriented reciprocal motion is given to the brush member.
Referr;ng now to Figures 6 to 8, a casing 10 contains a recharseable power-supply battery 11 and a motor 12. The battery 11 and the motor 12 are connected together via a poWer supply switch 13 in the casIng 10. The power supply switch 13 functions to turn on or off the motor 12, as well as to change the rotation of the motor 12 in the forward direction or in the reverse ll~S4~
direction. To said battery 11 is connected a plug 14 for recharging. The plug 14 can retractably extend beyond the rear surface of the casing 10. To the output shaft of the motor 12 is connected a planetary gear-type reduction devlce 15, and the output shaft of the planetary gear-type reduction device 15 is connected via a gear 17 to a rotary shaft 16 supported by the casing 10. To the rotary shaft 16 is fastened a crank 18 on which is mounted a crank pin 19 which is parallel to said shaft 16. A guide pin 20 which is parallel to said crank pin 19 is fastened to said casing 10. The crank pin 19 and guide pin 20 are slidably inserted in a guide groove 22 in which is detachably inserted a brush 23, said guide groove 22 being formed in the back and forth directions along a brush holder 21. The brush holder 21 is located on a flat portion of the casing 10. A
switching member 24 is located on the upper surface of said brush holder 21 to cover the upper surface of the guide groove 22, the rear surface of said switching member 24 facing the crank pin 19 and the front surface of said switching member 24 facing to the guide pin 20. The switching member 24 slides on the brush holder 21 along the guide groove 22. Further, between the brush holder 21 and the switching member 24 is interposed a stop member (not shown), so that the switchin~ member 24 is stopped at the front end and the rear end of the guide gxoove 22. An operation fitting 25 is slidably mounted in said groove 22 in such a manner that its head portion is exposed above the groove of the casing 10;
whereby said switching member 24 can be slid overcoming the force of sa~d stop mechanism.
With the thus constructed electrically driven tooth brush, when the motor 12 is rotated, the rotational speed is reduced via the planetary gear-type reduction device 15. The crank pin 19 is then turned via the bevel gears 17 about the rotary shaft 16. In this case, when the switching member 24 is engaged with the brush , -4-. ~ .
11~5467 holder 21 with said switching member being moved to the rear end as shown in ~igure 8, the crank pin l9 is held between the rear end of the switching member 24 and the rear end of the guide groove 22. The rear end of the brush holder 21 is then caused to turn with the turning motion of the crank pin 19. Since sufficient distance is maintained between the guide pin 20 mounted on the casing 10 and the front end of the switching member 24, the brush holder 21 is caused to extend and retract while swinging in the right and left directions with the guide pin 20 as a fulcrum. That is, when the swinging member 24 is so moved as to reduce the effective length of the guide groove 22 with respect to the crank pin 19, the holder 21 performs the turning motion accompanying the turning motion of the crank pin 19 thereby-causing the brush 23 attached to the front portion of the holder 21 to turn in the direction of arrow A.
; Further, when the switching member 24 is moved forward to reduce the effective length of the guide groove 22 with respect to the guide pin 20, the effective length of the guide groove 22 with respect to the crank pin 19 is lengthened whereby the crank pin 19 is allowed to slide in the back and forth directions in the guide groove 22, and the guide pin 20 serves as a fulcrum for the brush holder 21. Therefore, when the cran~ pin 19 is turned by the rotational force of the motor 12, the crank pin l9 `~ slides back and forth in the guide groove 22 while the rear end of the brush holder 21 swinqs in the right and left directions. As a result, the brush holder 21 oscillates toward the right and left with the guide pin 20 as a fulcrum causing the brush 23 to perform the reciprocat~ng motion in the direction of arrow B like that of a wire of an automobile. The turning direction of the brush 23 can of course be reversed by reversing the power supply swiitch 13.
In the above-mentioned embodiment, a rechargeable battery . . :: ,.
~l~S467 is employed as a power-supply battery to attain the economical advantage, a planetary gear-type reduction device is used as a reduction mechanism to reduce the size of the reduction device, ... r the same guide groove is used for the crank pin and for the guide pin ~o simplify the shape of the brush holder, and the effective length of said guide groove is changed to effect the changing between the turning motion and the reciprocating motion to simplify the changing member and its mechanism. It should, ; however, be noted that the present invention is by no means limited to the set up of the aforementioned embodiment. It is desired that the tooth brush is turned at a speed of 170 revolutions to 230 revolutions per minute, so that the turning speed is nearly equal to that of the speed when the brush is moved by human hand.
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An electrically driven tooth brush comprising a casing, a brush holder extending from said casing and having a brush detachably mounted at a front end thereof, said brush holder being rotatable and slideable in said casing which is provided with a power supply battery, a motor and a reduction mechanism for the motor, a crank pin integral with a crank which is adapted to be rotated by the motor via the reduction mechanism, a guide pin mounted on the casing parallel to the crank pin, a guide groove in the brush holder in which the crank pin and the guide pin are slidably inserted, and a switching member slidably mounted to move between the crank pin and the guide pin in the guide groove, said switching member being capable of fixing either one of the crank pin or the guide pin, whereby a rotational motion or a laterally oriented reciprocal motion is given to the brush member.
2. A tooth brush according to claim 1, wherein said motor is capable of rotating the crank in a forward and reverse direction.
3. A tooth brush according to claim 1, wherein said power supply battery is a rechargeable battery.
4. A tooth brush according to claim 1, 2 or 3, wherein said reduction mechanism is a planetary gear-type reduction device.
5. A tooth brush according to claim 1, 2 or 3, wherein a rotary shaft of the crank is driven by the motor via the reduction mechanism and bevel gears.
6. A tooth brush according to claim 1, 2 or 3, wherein said guide groove is longitudinally disposed in the brush holder and the crank pin and the guide pin are fastened by the switching member at either end of the groove respectively.
7. A tooth brush according to claim 1, 2 or 3, wherein an operation fitting for the switching member is slidably mounted in a groove with a head portion thereof exposed out of the casing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10510277A JPS5438851A (en) | 1977-09-01 | 1977-09-01 | Electric tooth brush |
| JPSHO52-105102 | 1977-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1115467A true CA1115467A (en) | 1982-01-05 |
Family
ID=14398509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA309,920A Expired CA1115467A (en) | 1977-09-01 | 1978-08-23 | Electrically driven tooth brush |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5438851A (en) |
| CA (1) | CA1115467A (en) |
| CH (1) | CH633699A5 (en) |
| DE (1) | DE2838015C2 (en) |
| FR (1) | FR2401631A1 (en) |
| GB (1) | GB2005999B (en) |
| IT (1) | IT1106770B (en) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0054043B1 (en) * | 1980-06-19 | 1985-11-06 | HUNTER, Frank Mitchell | Electrically driven toothbrush |
| JPS5869505A (en) * | 1981-10-21 | 1983-04-25 | 福場 博 | Electromotive toothbrush holder |
| JPS58105709A (en) * | 1981-12-18 | 1983-06-23 | 福場 博 | Electromotive toothbrush holder |
| JPH0657174B2 (en) * | 1984-09-07 | 1994-08-03 | 株式会社東芝 | electric toothbrush |
| JPS6160828U (en) * | 1984-09-28 | 1986-04-24 | ||
| JPH0237370Y2 (en) * | 1985-03-19 | 1990-10-09 | ||
| DE3529861A1 (en) * | 1985-08-21 | 1987-02-26 | Klaus Dyballa | Electromechanically drivable appliance for surface treatment, in particular for cleaning a surface |
| JPH0683714B2 (en) * | 1985-09-09 | 1994-10-26 | 松下電工株式会社 | electric toothbrush |
| FR2620315B1 (en) * | 1987-09-11 | 1991-10-11 | Demare Bernard | ACTUATOR FOR TOOTHBRUSH AND TOOTHBRUSH PROVIDED WITH THIS ACTUATOR |
| DE3803646A1 (en) * | 1988-02-06 | 1989-08-17 | Gimelli & Co Ag | ELECTRIC TOOTHBRUSH |
| DE9007277U1 (en) * | 1990-04-04 | 1990-11-29 | Zimmermann, Silvia, 7981 Schlier | Stimulation current device with touch sensor electrode for current/potential control of electrodes for current/potential transmission |
| US5383242A (en) * | 1992-01-08 | 1995-01-24 | Bausch & Lomb Incorporated | Electric toothbrush |
| JPH0568290U (en) * | 1992-02-21 | 1993-09-17 | 株式会社備文機械製作所 | Hand-held reciprocating brush device |
| DE4225547A1 (en) * | 1992-08-01 | 1994-02-03 | Bausch & Lomb | Electric toothbrush |
| US5253382A (en) * | 1992-08-31 | 1993-10-19 | Janos Beny | Power operated toothbrush |
| US5435034A (en) * | 1993-07-28 | 1995-07-25 | Bausch & Lomb Incorporated | Electric toothbrush |
| DE4404973C2 (en) * | 1994-02-17 | 1996-06-13 | Braun Ag | Electrically powered device for personal needs |
| WO2004084674A1 (en) * | 1994-03-24 | 2004-10-07 | Kazuhiko Yukawa | Electric toothbrush |
| DE19603851A1 (en) * | 1996-02-05 | 1997-08-07 | Finalpina Ag | Electric toothbrush |
| US5870790A (en) * | 1996-08-02 | 1999-02-16 | Root; Jeffrey T. | Powered water submersible scrubbing device |
| DE19705208C1 (en) * | 1997-02-12 | 1998-09-24 | Helmut Hatzl | Paint brush with drive |
| KR100333137B1 (en) * | 1999-12-16 | 2002-04-18 | 홍영근 | Electric toothbrush |
| US20030084526A1 (en) | 2001-11-06 | 2003-05-08 | The Procter & Gamble Co. | Multi-motion toothbrush |
| US20030226223A1 (en) | 2002-06-11 | 2003-12-11 | The Procter & Gamble Co. | High efficiency electric toothbrush |
| US7322066B2 (en) | 2003-07-16 | 2008-01-29 | Church & Dwight Co., Inc. | Electric toothbrushes having movable, intermittently movable, and fixed bristles |
| US20050050659A1 (en) | 2003-09-09 | 2005-03-10 | The Procter & Gamble Company | Electric toothbrush comprising an electrically powered element |
| US20050053895A1 (en) | 2003-09-09 | 2005-03-10 | The Procter & Gamble Company Attention: Chief Patent Counsel | Illuminated electric toothbrushes emitting high luminous intensity toothbrush |
| EP2568850B1 (en) * | 2010-05-14 | 2018-07-04 | GlaxoSmithKline Consumer Healthcare (UK) IP Limited | A drive system |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3168834A (en) * | 1962-08-29 | 1965-02-09 | Charles B Smithson | Motion converting mechanism |
| DE1174293B (en) * | 1962-09-26 | 1964-07-23 | Telefunken Patent | Driven toothbrush, which can be moved either in the longitudinal or transverse direction of the shaft axis |
| FR1472718A (en) * | 1966-03-28 | 1967-03-10 | Sunbeam Corp | Advanced electric toothbrush |
| US3562566A (en) * | 1967-02-16 | 1971-02-09 | Westinghouse Electric Corp | Power operated toothbrush producing either oscillatory or reciprocatory motions |
| US3489936A (en) * | 1967-06-14 | 1970-01-13 | Gen Electric | Toothbrush with motion selector button |
| FR1589344A (en) * | 1967-10-21 | 1970-03-23 | ||
| CH493228A (en) * | 1968-01-15 | 1970-07-15 | Aqua Tec Corp | Device for bringing about a reciprocating movement, with a hydraulic drive system, in particular for cleaning teeth |
| US3546501A (en) * | 1968-12-27 | 1970-12-08 | Westinghouse Electric Corp | Dual motion toothbrush |
| US3561033A (en) * | 1969-05-06 | 1971-02-09 | Aqua Tec Corp | Automatic toothbrush with motion selector |
| US3524088A (en) * | 1969-05-19 | 1970-08-11 | Gen Electric | Drive mechanism for selective output motions |
| US3661018A (en) * | 1970-06-05 | 1972-05-09 | Richard K Keefer | Electric brusher |
-
1977
- 1977-09-01 JP JP10510277A patent/JPS5438851A/en active Granted
-
1978
- 1978-08-23 CA CA309,920A patent/CA1115467A/en not_active Expired
- 1978-08-25 GB GB7834592A patent/GB2005999B/en not_active Expired
- 1978-08-30 IT IT50903/78A patent/IT1106770B/en active
- 1978-08-31 FR FR7825176A patent/FR2401631A1/en active Granted
- 1978-08-31 CH CH917378A patent/CH633699A5/en not_active IP Right Cessation
- 1978-08-31 DE DE2838015A patent/DE2838015C2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2838015C2 (en) | 1984-04-19 |
| FR2401631B1 (en) | 1982-02-26 |
| CH633699A5 (en) | 1982-12-31 |
| FR2401631A1 (en) | 1979-03-30 |
| IT7850903A0 (en) | 1978-08-30 |
| IT1106770B (en) | 1985-11-18 |
| JPS556364B2 (en) | 1980-02-15 |
| JPS5438851A (en) | 1979-03-24 |
| GB2005999B (en) | 1982-08-04 |
| DE2838015A1 (en) | 1979-03-15 |
| GB2005999A (en) | 1979-05-02 |
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