CN1353595A - Electric toothbrush - Google Patents
Electric toothbrush Download PDFInfo
- Publication number
- CN1353595A CN1353595A CN00808409.2A CN00808409A CN1353595A CN 1353595 A CN1353595 A CN 1353595A CN 00808409 A CN00808409 A CN 00808409A CN 1353595 A CN1353595 A CN 1353595A
- Authority
- CN
- China
- Prior art keywords
- electric toothbrush
- output shaft
- driving shaft
- shaft
- cam
- 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.)
- Pending
Links
- 230000033001 locomotion Effects 0.000 claims abstract description 37
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 210000004195 gingiva Anatomy 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 208000002064 Dental Plaque Diseases 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000003239 periodontal effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- 208000006558 Dental Calculus Diseases 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
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
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)
- Transmission Devices (AREA)
Abstract
An electric toothbrush is provided which includes an elongate body having an interior cavity, a power source mounted within the cavity, an elongate drive shaft driven rotatably by the power source, a camwheel mounted on the drive shaft, a yoke with projecting arms which confine travel of the camwheel, a crankshaft section driven by the drive shaft, an output shaft axially aligned to the drive shaft, and a collar with a guide track eccentrically coupling the crankshaft section to the output shaft thereby imparting both lateral and rotary reciprocating motion to the output shaft. A brushhead mounted on the front end of the elongate body accepts the motion from the output shaft. The mechanical drive system is fully enclosed within the housing of the elongate body. Brushheads are replaceably mountable outside the cavity on the front end.
Description
The present invention relates to a kind of electric toothbrush, brush of this electric toothbrush operation with three-dimensional stroke motion.
Electric toothbrush developed for six more than ten years.Type the earliest is quite simple, is to have the limited electromechanical manual toothbrush form that moves back and forth.Latest developments are the feature with battery and efficient miniaturization motor of performance reinforcement.Be with the electric toothbrush of powdery battery to occupy remarkable position in the general category product now.
Yet along with these drive the improvement of series, the setting of the motor drive mechanism on basis does not have any difference with the device of selling the earliest.Basically, typical products comprises battery, rechargeable or replacement, the end is adjacent to the end of little high-speed electric expreess locomotive.Driving shaft can be connected with the Mechanical Driven series that has reduction gearing or crank arm or link to each other with simple directly the driving successively by motor operation.
The toothbrush of the fixed bristle arrangements of most of Machine Design involving vibrations can move in the limited range of movement of angular turn back and forth.Motion is in two-dimensional plane basically.Dissimilar plant equipment, for example with each actuating device of lever, associating or transmit rotational motion individually.In some examples, brush can have the feature of the roll brush bundle that is driven separately by actuating device individually.The third classification of electric toothbrush has merged ultrasonic technology, or combines separately or with the toothbrush of vibration.
In quite a large amount of documents, United States Patent (USP) 5577285 (Drossler) has been described a kind of electric toothbrush, and wherein a turning cylinder moves to interactive mode or rotational motion on the bristle supporting structure.United States Patent (USP) 5467494 (Muller et al.) has been described a kind of mechanism that has a pair of parts that can rotate mutually on pivot, and first is served as handle, and second is served as brush.When surpassing the setting pressure threshold value, be arranged on the spring bending between two parts, when pressure descended, spring returned to its initial position again.The toothbrush angular turn is given in the action of spring.Announced the sagging system of a kind of waterpower in the United States Patent (USP) 4276672 (Teague Jr.Et al.), this system that can realize rotational motion is transformed into circulatory motion successively in the toothbrush work package.United States Patent (USP) 3538530 (Stemme) provides a kind of motor-driven toothbrush, and this toothbrush is to have the guiding device that profile is similar to the cam surface of 8 fonts.The axis of guide as a brush holder support part extends into shell.Therefore whole toothbrush is along the path operations that is similar to 8 fonts.United States Patent (USP) 5177826 (Vrignaud et al.) discloses the toothbrush that a pair of dish type is rotated, and the axis that is set to usually wind perpendicular to decreased food rotates.Be brush high and low linearity between rotation is paid, in linear reciprocal movement, rotate usually perpendicular to axis.The cylindrical cam spare that is provided for eccentric rotary is operated as the part of system.Another gear is fixed on the cam member, but is provided for concentric rotation.United States Patent (USP) 5077855 (Ambasz) has been described a kind of electric toothbrush, comprises the driving device and the actuating device that have motor, and this device drives one and a brush extension simultaneously, moves back and forth at the axis direction that is parallel to axle.Toothbrush device comprises the brush that is connected with vertical reciprocating extension, has several bristle holders to separate at interval and be parallel to driving shaft ground and is installed in respectively on the brush, is used to sway, and each bristle holder is equipped with several bristle tuft.The crank axle that links to each other with driving shaft is passed to each bristle holder to the motion of rotating respectively on pivot.
Even in the option and improvement of above classification, most of Machine Design is also very complicated.Adorn a lot of widgets so that bristle or brush are passed in rotational motion.And miniaturization feature of these parts necessity and their blow-by setting have been quickened wearing and tearing in the typical abrasive environment in the oral cavity.
Another tangible problem is its effect.It is not efficiently that electric toothbrush is compared with the manual type toothbrush.For example their each comfortable performances of removing the tartar aspect seem to have no difference.
It is that it is inconsistent with the action of being accustomed to most of brushing teeth that known technology also has another important shortcoming.Most of periodontal postgraduates plan textbook promotion Bass method.This method is recommended to be used to remove and to be positioned under the gingival margin and near dental plaque.This respect has important effect on control gingiva and periodontal.The main points of Bass method comprise along the angle orientation toothbrush of gingiva line with 45 °.Delegation's bristle be close to lightly they with gingiva that tooth contacts under.After this toothbrush vibrates ten times lightly back and forth, makes along the gingiva line concealing loosening at the dental plaque in crinkled.In last step, toothbrush mentioned and be reapposed on next column tooth and the gingiva carry out same action.
Therefore, an object of the present invention is to provide a kind of electric toothbrush that can transmit three-dimensional motion to bristle.
Another object of the present invention provides a kind of electric toothbrush, can transmit three-dimensional motion, and this motion meets the Bass method, is used to remove be positioned under the gingival margin and near dental plaque.
A further object of the invention provides a kind of electric toothbrush of simple and mechanical design, and this toothbrush allows more changing brush head, spend less, rather than the sort of toothbrush that couples together at present in commercial common brush and mechanical drive system.
These and other purpose of the present invention will become clearer easily from following summary and describing in detail.
Therefore, first aspect present invention provides a kind of electric toothbrush, and it comprises:
(i) limit handle and be formed with the elongate body of internal cavities therein, this cavity extends to the rear end from front end;
(ii) be placed in the power supply in the cavity;
(iii) by the elongated driving shaft from front end to the rear end straightening of power drives;
(iv) be placed in the cam on the driving shaft;
(yoke that v) has two protruding arms, cam is axially reciprocating between two protruding arms, thereby driving shaft is passed in reciprocating motion;
(vi) in the crank axle part of yoke axial downstream by drive shaft;
(vii) with the axially aligned output shaft of driving shaft; With
(axle collar that viii) has guide rail couples together the crank axle part prejudicially with output shaft, thereby output shaft is passed in horizontal and reciprocal rotational motion.
Mechanical drive system is enclosed in the sealing shell that self comprises three dimension system fully.Do not need the Mechanical Driven form that the action of brushing teeth is provided in the outside of toothbrush handle.
One simple brush can be arranged on the output shaft with pulling out.Preferably reach the purpose that stops by locating slot.In brush, motion parts needn't be arranged, and it can be formed by the minor axis of hollow.
Brush is passed in the horizontal and reciprocal rotational motion that output shaft merges.Each the toothbrush top fiber that causes brush moves clockwise by predetermined pattern of oval shapes.The top fiber moves simultaneously and creates an eclipsed pattern of scrubbing.The motion at toothbrush top is of value to the mode of recommending with the Bass method and improves cleaning to teeth space and gingiva line.
It is favourable that cam becomes 1 ° to 20 ° inclination with respect to driving shaft.Slant range is more preferably at 4 ° to 10 °.
Near the front end of elongate body one flexible portion is arranged at the output shaft in axle collar downstream.Can produce 1 ° to the 40 ° angular bend in the scope along this part.
By studying following accompanying drawing, will obviously find out different qualities of the present invention, purpose and benefit easilier, wherein:
Fig. 1 is the side view according to electric toothbrush of the present invention;
Fig. 2 is the electric toothbrush according to Fig. 1, removes a part of shell and represents driving device;
Fig. 3 is the enlarged view along driving device part shown in Figure 2;
Fig. 4 is the top view of the bristle of bunchy arrangement; With
Fig. 5 is bristle formed motion pattern when mechanical vibration shown in Figure 3 that the bunchy of Fig. 4 is arranged.
Fig. 1 provides the view of the first embodiment of the present invention.Electric toothbrush shown in this figure comprises an elongate body 2, the internal cavities 6 that it defines brush holder 4 and forms in main body.This cavity extends to rear end 10 from front end 8.Brush element 12 is placed in the front end of the elongate body that stops through locating slot 14.Brush element comprises the bristle 16 of the 18 bunchys arrangements of protruding from the head.
By observe the particulars that Fig. 2 can understand driving device assembly 38 best in conjunction with Fig. 1.More detailed visible Fig. 3 of view.Driven wheel 42 is adjacent to motor 24 and is provided with, and is started by motor 24.Littler driven wheel 44 is connected on this gear, has respectively to be about 2: 1 speed reducing ratio.The adoptable gear reduction ratio of other embodiment is about in any scope of 10: 1 to 1.2: 1.It is to cause the minimized reason of gear number that the space is considered, although other embodiment may adopt more reduction gearing and adopt different space layouts.
Elongated driving shaft 46 is connected rotationally with driven wheel 44, and the latter is interference fit with it.Cam 48 with centre bore 50 is supported by driving shaft 46, runs through to driving shaft 46 interference fits centre bore.Cam 48 is provided with about 6 ° inclination angle.The bracketing cam be yoke 52, yoke 52 has from the circular mounting chassis 56 outstanding arms 54.The motion of cam is laterally limited by the orientation between two arms of yoke.
The yoke downstream is the crank axle part 58 that is driven by driving shaft 48.Output shaft 60 axially aligns (promptly parallel) in reciprocating type driving shaft 46.The axle collar 62 couples together the crank axle part prejudicially with output shaft, and the axle collar 62 of formation has guide rail 64, and crank axle passes across guide rail 64.By the support of rigid frame 40 acquisitions to driving device.The suitable material of this framework is an injection-moulded plastic, for example nylon.
In the angle of bend of the flexible portion 66 of the output shaft in axle collar downstream between 1 ° to 40 °.
Depress beginning button triggering battery and just begun electric power transfer.Electrical connection is rotated motor, and transmits rotational motion by minor axis and come rotational driving gear.Driven wheel is connected with bigger driven wheel and causes reciprocal rotation.Because driven wheel is attached on the driving shaft securely, cam rotates successively.The external flange of cam rotates continuously and closely contacts with two protruded arms of yoke.Rotational motion between two arms of cam at yoke, the bottom of yoke are freely changeed around its circular shaft ring, to cooperate the convergence angle of the continuous transformation that is formed by cam.Keeping two arms thus fixedly contacts with the constant of flange of cam.Therefore, produce the reciprocating motion of crank axle.This motion partly passes to the axle collar through the crank axle of eccentric rotary again then.
The reciprocating motion of crank axle part thereby be directly passed to the axle collar and output shaft.And must be pointed out that consistent with reciprocating motion, the eccentric crank axle part that acts on the axle collar is passed to output shaft to oscillating movement.When brush rotated with the actual engagement of output shaft flexible portion by its axle, this combination had caused the compound motion of brush.
Fig. 4 shows the top view of the bristle that bunchy is arranged.The motion of the bristle in the arrangement is seen shown in Figure 5.The aggregate motion that is produced by driving device assembly of the present invention has formed the movement locus that overlaps basically.The teeth brushing way that movement locus that overlaps and dentist recommend to the utmost mates very much.The movement velocity of bristle is higher relatively, has formed a lot of overlappings and has scrubbed stroke.These bristles fork of on dental surface, backcrossing.
Obviously, be different from those illustrated bristle arrangements and also can be applicable to toothbrush of the present invention.Bristle can be with angle to cut off, so that scrub the tooth of being inconvenient to reach that is positioned in the oral cavity fully, this angle also can be in conjunction with the brush element adjustment, makes it strictness and follows the angle (Bass Angle A) that periodontal and DENSP are referred to as Bass A.
Above stated specification and example illustrate the embodiment that the present invention selects.Consider that the technical staff in this technical field can propose its a lot of modification and improvement, all these is in spirit of the present invention and protection domain.
Claims (6)
1. electric toothbrush, it comprises:
(i) limit handle and form the elongate body of internal cavities therein, this cavity extends to the rear end from front end;
(ii) be placed in the power supply in the cavity;
(iii) by the elongated driving shaft from front end to the rear end straightening of power drives;
(iv) be placed in the cam on the driving shaft;
(yoke that v) has two protruding arms, cam is axially reciprocating between two protruding arms, thereby driving shaft is passed in reciprocating motion;
(vi) in the crank axle part of yoke axial downstream by drive shaft;
(vii) with the axially aligned output shaft of driving shaft; With
(axle collar that viii) has guide rail couples together the crank axle part prejudicially with output shaft, thereby output shaft is passed in horizontal and reciprocal rotational motion.
2. electric toothbrush according to claim 1 is characterized in that, cam becomes 1 ° to 20 ° inclination with respect to driving shaft.
3. electric toothbrush according to claim 1 and 2 is characterized in that, slant range is at 4 ° to 10 °.
4. according to each described electric toothbrush among the claim 1-3, it is characterized in that the output shaft in axle collar downstream has a flexible portion near front end, it can produce 1 ° to the 40 ° angular bend in the scope.
5. according to each described electric toothbrush in the aforementioned claim, it is characterized in that this yoke has a circular mounting chassis, can partly rotate.
6. according to each described electric toothbrush in the aforementioned claim, it is characterized in that this brush element is replacedly pulled down from the front end of elongate body, and is separated therefrom by rubber seal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13754199P | 1999-06-04 | 1999-06-04 | |
| US60/137,541 | 1999-06-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1353595A true CN1353595A (en) | 2002-06-12 |
Family
ID=22477892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00808409.2A Pending CN1353595A (en) | 1999-06-04 | 2000-05-22 | Electric toothbrush |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP1182988A1 (en) |
| JP (1) | JP2003501138A (en) |
| CN (1) | CN1353595A (en) |
| AR (1) | AR020567A1 (en) |
| AU (1) | AU4925000A (en) |
| BR (1) | BR0011263A (en) |
| CA (1) | CA2374083A1 (en) |
| HU (1) | HUP0201345A2 (en) |
| MX (1) | MXPA01012367A (en) |
| PL (1) | PL352802A1 (en) |
| TR (1) | TR200103489T2 (en) |
| WO (1) | WO2000074592A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105682605A (en) * | 2013-10-25 | 2016-06-15 | 皇家飞利浦有限公司 | Attachment for an electric toothbrush handle and method of attaching |
| CN110360290A (en) * | 2019-08-21 | 2019-10-22 | 广东海泰金属制品有限公司 | The cam lever power device of speed change output |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040143917A1 (en) * | 2001-04-27 | 2004-07-29 | Peter Ek | Electric toothbrush |
| US20030084526A1 (en) | 2001-11-06 | 2003-05-08 | The Procter & Gamble Co. | Multi-motion toothbrush |
| US6725490B2 (en) | 2001-11-06 | 2004-04-27 | The Procter & Gamble Company | Complex motion toothbrush |
| US20030140437A1 (en) | 2002-01-31 | 2003-07-31 | Eyal Eliav | Powered toothbrush |
| US6892412B2 (en) | 2002-01-31 | 2005-05-17 | Colgate-Palmolive Company | Powered toothbrush |
| US8317424B2 (en) | 2004-06-03 | 2012-11-27 | The Gillette Company | Oral care device |
| JP2016087393A (en) * | 2014-11-10 | 2016-05-23 | 杉本 一郎 | Electrically-driven periodontal toothbrush |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1250455A (en) * | 1959-10-01 | 1961-01-13 | Brushing device intended in particular for cleaning teeth | |
| US3538530A (en) | 1968-01-30 | 1970-11-10 | Braun Ag | Toothbrush |
| US4276672A (en) | 1977-11-07 | 1981-07-07 | Teague Jr Walter D | Power toothbrush or the like with orbital brush action |
| US5177826A (en) | 1990-03-16 | 1993-01-12 | Hagemann International | Rotary toothbrush |
| US5077855A (en) | 1990-06-05 | 1992-01-07 | Emilio Ambasz | Motor-driven toothbrush |
| DE4239251A1 (en) | 1992-11-21 | 1994-05-26 | Braun Ag | Electric toothbrush with rotating bristle holder |
| BE1007432A3 (en) | 1993-07-30 | 1995-06-13 | Philips Electronics Nv | Toothbrush |
| WO1998023223A1 (en) * | 1996-11-25 | 1998-06-04 | Ewt Elektrogeräte Gmbh & Co. Kg | Electric tooth brush |
-
2000
- 2000-05-22 CN CN00808409.2A patent/CN1353595A/en active Pending
- 2000-05-22 JP JP2001501131A patent/JP2003501138A/en not_active Withdrawn
- 2000-05-22 PL PL00352802A patent/PL352802A1/en unknown
- 2000-05-22 CA CA002374083A patent/CA2374083A1/en not_active Abandoned
- 2000-05-22 MX MXPA01012367A patent/MXPA01012367A/en unknown
- 2000-05-22 BR BR0011263-1A patent/BR0011263A/en not_active Application Discontinuation
- 2000-05-22 WO PCT/EP2000/004728 patent/WO2000074592A1/en not_active Application Discontinuation
- 2000-05-22 EP EP00931261A patent/EP1182988A1/en not_active Withdrawn
- 2000-05-22 AU AU49250/00A patent/AU4925000A/en not_active Abandoned
- 2000-05-22 HU HU0201345A patent/HUP0201345A2/en unknown
- 2000-05-22 TR TR2001/03489T patent/TR200103489T2/en unknown
- 2000-06-02 AR ARP000102737A patent/AR020567A1/en not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105682605A (en) * | 2013-10-25 | 2016-06-15 | 皇家飞利浦有限公司 | Attachment for an electric toothbrush handle and method of attaching |
| CN105682605B (en) * | 2013-10-25 | 2018-02-16 | 皇家飞利浦有限公司 | Method for the annex and attachment of power toothbrush handle |
| CN110360290A (en) * | 2019-08-21 | 2019-10-22 | 广东海泰金属制品有限公司 | The cam lever power device of speed change output |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000074592A1 (en) | 2000-12-14 |
| MXPA01012367A (en) | 2002-07-30 |
| AR020567A1 (en) | 2002-05-15 |
| EP1182988A1 (en) | 2002-03-06 |
| TR200103489T2 (en) | 2002-04-22 |
| HUP0201345A2 (en) | 2002-08-28 |
| PL352802A1 (en) | 2003-09-08 |
| JP2003501138A (en) | 2003-01-14 |
| CA2374083A1 (en) | 2000-12-14 |
| BR0011263A (en) | 2002-04-02 |
| AU4925000A (en) | 2000-12-28 |
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |