CN1108781C - Rotary physiological tooth brush design plan - Google Patents
Rotary physiological tooth brush design plan Download PDFInfo
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- CN1108781C CN1108781C CN97107732A CN97107732A CN1108781C CN 1108781 C CN1108781 C CN 1108781C CN 97107732 A CN97107732 A CN 97107732A CN 97107732 A CN97107732 A CN 97107732A CN 1108781 C CN1108781 C CN 1108781C
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Abstract
The present invention belongs to a novel design proposal for a toothbrush for brushing teeth in daily life, of which the design aim is to solve the problem that teeth are difficult to brush by using the existing toothbrush according to a physiological tooth brushing method. The present invention is characterized in that a radiation hair brush is used (proposal 1) or a caterpillar rotary hair brush is used (proposal 2), and the continuous rubbing motion is done along the teeth under the drive of external connection rotary power to achieve the aim of physiological tooth brushing. The external connection power of the proposal uses the accessory power design proposal of the proposal as power, and is characterized in that double ratchet wheels are used for continuous rotation in the same direction under the drive of a spring power steel wire to output power to push a hair seat to continuously rub along the teeth, and the rotary speed is required more than 70 revolutions/minute.
Description
Technical field
What the present invention relates to that daily life uses washes apparatus, particularly a kind of rotational head physiological tooth.
Toothbrush is to remove with it in people's daily life to remain in the residue of tooth in meeting after diet, prevents the residue corrosion tooth that turns sour.It is a kind of the articles for daily use that everybody needs.
Background technology
The toothbrush of present common use is the some radial in the same way bristles of field planting on a plate, and fixes one perpendicular to bristle and hold the handle formation.Use this toothbrush according to the knowledge of introducing on doctor's requirement and the many books, require the following tooth of brush upwards to brush along tooth root when brushing teeth, the tooth that brushes face is brushed downwards along tooth root, promptly as the action of combing one's hair, and requiring firmly to want light and even, this brushing is the physiology brushing.In real life, general brushing is to hold handle to make horizontal Dragsaw type rapid movement and make bristle level friction on tooth, reaches the purpose of brushing teeth fast.This non-physiology brushing long term often brings very big negative interaction--the gingiva of teeth roots brushed, make root of the tooth expose various focusing depths represented, gingival atrophy behind the 2--10, odontoseisis, responsive especially to pain, fruit acid in cold drink or the fruit can directly excite nerve and cause unbearable pain, if things go on like this just becomes a kind of painful torment.There are a lot of books and periodicals and newspaper usually to warn people to adopt physiology brushing (second the 58th page the 12nd row of " Hundred Thousand Whys " medical science of brushing teeth; 22 days the 6th plate monographs of " Chongqing Evening News " December in 1994; " Reference News " nineteen ninety-five JIUYUE 3 days, May 14 nineteen ninety-five scientific and technological plate).But at present toothbrush uses by the physiology brushing and is difficult to grasp, a lot of people need not or operating physical force is excessive does not reach predetermined purpose, a lot of people cause negative interaction as previously mentioned unconsciously because a variety of causes still generally adopts violent fast brush.So people have designed a lot of being fit to by the roll brush first-born reasons of the physiology brushing operation scheme of brushing teeth.But these schemes are too complicated or too simple, have such-and-such defective.
The FR2489120A1 patent of invention of the DE3306969A1 patent of invention of Germany design and France's design is two kinds of two-beam physiological tooths that are used as power with motor preferably in the existing scheme, meets the requirement that physiology is brushed teeth, and its rotational power is also more stable.But, motor has a lot of deficiencies, mainly show: at first will make the energy with battery, battery will be made raw material with the number of chemical product, severe contamination is caused to environment in the discarded back of wherein a variety of chemical substances, do not meet environmental requirement, and frequent replacing of battery correspondingly increased consumer's cost of use and frequent charge is also brought inconvenience to consumer; Secondly the Magnet of motor is also shorter service time, and the respective electrical motivation is also shorter service life, has further increased the burden of consumer again.
Summary of the invention
The technical problem to be solved in the present invention is will provide a kind of to be based on manually exporting rotational power without motor is used as power and can to resemble exporting the energy-conserving and environment-protective of stablizing power, convenient durable dynamical system the motor, adopts two-beam radiation hairbrush and crawler type to rotate two kinds of physiological tooth schemes of radiation bristle.
The side solves the problems of the technologies described above, above-mentioned purpose of the present invention is to realize by such technical scheme, it is a kind of physiological tooth, comprise rotation control mechanism, rotary brush body and brush holder, it is characterized in that: brush intravital rotating shaft and connect with the final drive shaft of two ratchet spring dynamical systems by its rotation steering mechanism; Wherein two ratchet spring dynamical systems are by the power connector, power transmission shaft, be fixed on two the ratchets that direction identical of power transmission shaft back segment by the power connector, be enclosed within outer corresponding two ratchets of ratchet, the ratchet limit plug that leans on mutually with two ratchets, be enclosed within the power connector, on the kinetoplast pipe on the ratchet limit plug, being fixed on spring on the kinetoplast pipe props up and adds stake, be vertically fixed on spring and prop up the spring support that adds in the stake, cover spring thereon also can be formed at spring pressuring plate that slides on the support and the power steel wire on ratchet with being pressed on the spring, two power steel wires pitch of the laps on two ratchets respectively wherein, winding length is slightly worked energetically spring pressuring plate up-downgoing length, wherein two power steel wires respectively just around with back-roll on two ratchets, winding length is slightly larger than pressure cap up-downgoing length, the end of two power steel wires is just being walked around hanging axis and is being fixed on the spring pressuring plate with the chute that two power steel wire origin or beginnings pass spring support, fastening screw by cantilever tip, the binding nut rotation makes hanging axis tensioning power steel wire, makes two ratchets realize that when two power steel wires spur up and down two ratchets are simultaneously to the different directions alternate rotation.
The embodiment of the invention 1 two-beam radiation physiological tooth brush, brush are installed in intravital two power transmission shafts of brush and are the bristle of radial field planting on rotating shaft front bristles seat by brush body to be formed; Wherein the driven pulley of rotating shaft rear end connects with its rotation steering mechanism, this steering mechanism forms by the drivewheel that is fixed on the power transmission shaft front end with by the drive of its engagement, and they make them drive the bristle tuft rotation towards the direction of ecto-entad with the rear end engagement of two power transmission shafts respectively.
The embodiment of the invention 2 crawler types are rotated radiation bristle physiological tooth, brush is by brush body and be installed in the intravital two coaxial one driving pawl impeller-hub driven pulleys of brush, be enclosed within on the driving pawl the crawler belt of forming by hair brush base be the radiation bristle of radial field planting on crawler belt and form; Wherein the rear end of driving pawl impeller-hub driven pulley connects with its rotation steering mechanism, this steering structure is by the drivewheel that is fixed on the power transmission shaft front end, form with the drive of its engagement, wherein two about drives of engagement are installed on the reversible claw moving up and down simultaneously, when reversible claw moves up and down, realize that respectively two drives act on simultaneously or a drive acts on the engagement of driving pawl impeller-hub driven pulley separately and realizes its rotating.
Description of drawings
The embodiment of two indefinitenesses that said structure of the present invention can provide by accompanying drawing further specifies.
The present invention has following accompanying drawing:
Accompanying drawing 1 is that the embodiment of the invention 1 is rotated radiation physiological tooth brush design assembly
Accompanying drawing 2 is that the embodiment of the invention 2 crawler types are rotated radiation bristle physiological tooth design assembly
Accompanying drawing 3 is the two ratchet spring dynamical system design assemblies of the present invention
Accompanying drawing 4 damper shaft
Accompanying drawing 5 bristles
Accompanying drawing 6 hair brush bases--power transmission shaft--driven pulley
Accompanying drawing 7 brush bodies
Accompanying drawing 8 gear axillares
Accompanying drawing 9 drives
Accompanying drawing 10 power transmission shafts--drivewheel
Accompanying drawing 11 brush body rear portions
Accompanying drawing 12 power connectors
Accompanying drawing 13 ratchet plugs
Accompanying drawing 14 ratchets
Accompanying drawing 15 ratchets
Accompanying drawing 16 ratchet limit plugs
Accompanying drawing 17 kinetoplast pipes
Accompanying drawing 18 power steel wires
Accompanying drawing 19 wireline pulleys
Accompanying drawing 20 springs prop up and add stake
Accompanying drawing 21 spring supports
Accompanying drawing 22 pulley spindle bolts
Accompanying drawing 23 power springs
Accompanying drawing 24 spring pressuring plate bodies
Accompanying drawing 25 hanging axises
Accompanying drawing 26 fastening bolts are hung
Accompanying drawing 27 binding nuts lid
Accompanying drawing 28 damper shaft
Accompanying drawing 29 radiation bristles
Accompanying drawing 30 hair brush bases
Accompanying drawing 31 directed silks
Accompanying drawing 32 brush holders are a chain of to be hung
Accompanying drawing 33 driving pawls--impeller-hub--driven pulley
Accompanying drawing 34 brush bodies
Accompanying drawing 35 shaft bearing plates
Accompanying drawing 36 commutation wheel seats
Accompanying drawing 37 reversible claws
Accompanying drawing 38 brush body rear portions
Accompanying drawing 39 commutation cassette holders
Accompanying drawing 40 Commutating boxs
Accompanying drawing 41 commutations are hung
Accompanying drawing 42 commutation lids
Accompanying drawing 43 boxes lock pawl
Accompanying drawing 44 rotates the mapping of radiation physiological tooth brush assembler
Accompanying drawing 45 crawler types are rotated the mapping of radiation hair physiological tooth assembler
Accompanying drawing 46 is each bolt (nail) Design Mode figure in the description
Accompanying drawing 47 is each nut (hole) Design Mode figure in the description
Each bolt (nail), nut (hole) are with reference to Figure 46 in the description, and Figure 47 design (having only No. 5 is porose bolt) is as following table
Bolt (nail) nut (hole) design table sequence number dk k a h L b d m dm e δ 15412 12 4 1.2 0.3 1.2 5 32 5412212 0.3 23 5412222 0.3 24 5412332 0.3 25 5412 15 42 0.3 25 36 5412 12 3.5 1.2 0.3 1.2 5 37 5412 12 42 0.3 253
In the table: dk--socket cap diameter, the K--socket cap, the n--fluting is wide, and the h--fluting is dark, L--bolt length, the b--reach, the d--diameter of thread, m--pitch, dm--screw thread nominal diameter, the e--diagonal distance, δ--nut is thick.
The specific embodiment
Referring to accompanying drawing: physiological tooth among the figure, comprise rotary brush body, brush holder and two ratchet spring dynamical system, it is characterized in that: brush intravital two power transmission shafts 56 and connect with the drivewheel 46 of final drive shaft 24 front ends of two ratchet spring dynamical systems by its rotation steering mechanism; Wherein two ratchet spring dynamical systems are by power transmission shaft 24, be enclosed within the power connector 23 on the power transmission shaft 24, ratchet plug 21 near power connector 23, with ratchet 20 be contained in line shaft 24 by ratchet plug 21 against ratchet holes in, ratchet 17 is enclosed within on ratchet plug 21 ratchets 20, power steel wire 9 is pierced in ratchet plug 21 ratchets 17 through holes, steel wire 9 is enclosed around 3 on ratchet 17, with quadrat method one group of identical ratchet, 20 ratchet plugs, 21 ratchets, 17 steel wires 9 are assembled, ratchet limit plug 13 is enclosed within on the power transmission shaft 24, kinetoplast pipe 22 is enclosed within power connector 23, on the ratchet limit plug 13, spring propped up add stake and 14 cover on kinetoplast pipe 22, two groups of power steel wires 9 are drawn kinetoplast pipe 22 and power spring trestle pile 14 simultaneously, kinetoplast pipe 22, power connector 23,12 li of the corresponding positioning screw holes of ratchet limit plug 13, pulley spindle bolt 15 is pierced in the respective aperture of spring support stake 14, simultaneously 4 wireline pulleys 10 are through in the trestle pile on two pulley spindle bolts in the cylindrical hole, wireline pulley 10 is staggered, bolt top nut 16,4 power steel wires 9 are through respectively by in the chute between the two pulley spindle bolts 15, spring support 4 covers in spring support stake 14, support connecting bolt 18, nut 19 location; Power spring 8 is enclosed within on the spring support 4, and spring pressuring plate body 5 is enclosed within on the spring support 4, is pressed on the power spring 8; The fastening bolt is hung 2 and is screwed in binding nut lid 1; Fastening hanging axis 3 pierces into the fastening bolt and hangs in the axis hole of 2 bottoms, respectively an end of two groups of power steel wires 9 being walked around fastening hanging axis 3 passes in spring pressuring plate 5 side openings, the other end of power steel wire 9 is also passed in the same side opening of spring 5, steel wire fastening bolt 6 passes spring pressuring plate 5 side openings, spring support 4 gathering sills, the perforation lira that four statures of two groups of steel wires 9 is pierced into together fixing bolt 6 is tight, screw on steel wire clamp nut 7, the spring pressuring plate body moves up and down and drives power steel wire 9 one ends upwards, one end is downward, driving ratchet 17 rotates, ratchet 17 drives ratchet 20, ratchet 20 propulsion power transmitter shafts 24 outputting powers, power steel wire 9 twine to satisfy two groups of ratchets 17 are rotated to two rightabouts respectively.
In embodiment 1: hair brush base 54 field planting to around radiating bristle 53, hair brush base 54 and power transmission shaft 56, driven pulley 47 coaxial one, two groups are installed in parallel on the brush body 55, with damper shaft 52 location, between 59 two of axillares of mounting teeth wheel, the gear shaft board 59 drivewheel 46, driven pulley 47, drive 48 (commutation effect) are installed in the frame that the brush body end expands.Relation between the gear: drivewheel 46 directly promotes a driven pulley 47 and rotates; Drivewheel 46 promotes another driven pulley 47 by drive 48 and rotates, and two secondary speeds are identical, and direction is opposite, and it is to turn to inwards between the hair brush base 54 that driven pulley 47 promotes hair brush base 54 rotation directions, and hair brush base 54 both sides turn to outwards.End expands brush body rear portion 62 of body lid, toggle with 58 bindings of 4 No. 4 screws, 57 nuts, brush body rear portion 62 endoporus are installed connecting piece 23, connection tube 23 can freely rotate by No. 5 screw 61 screws 60 pipe 23 that is located by connecting, power transmission shaft 24 is installed in the connection tube 23, power transmission shaft 24 and drivewheel 46 coaxial one, brush body rear portion 62 ends are connected with power subject pipe 22 by connection tube 23 again.
In embodiment 2: bristle 28 is radiated in hair brush base 29 field planting in the same way, hair brush base 29 two ends hang 27 with zonula occludens of the continuous in twos formation of some hair brush bases 29 with brush holder is a chain of respectively, simultaneously orientation silk 49 is pierced in the corresponding directional hole of hair brush base, driving pawl 50, driving pawl 50 and impeller-hub 31 (also being dynamic link) driven pulley 47 coaxial one are installed in the hole between chain of rings extension 27 and hair brush base 29.Two groups of driving pawl 50--impeller-hubs 31 support into the crawler belt shape with hair brush base 29 zonula occludens and are installed in then on the brush body 30, with damper shaft 26 location, form toothbrush body.The brush body end expands installs two shaft bearing plates 34 in the chamber, and power input and output gear and exchange system are installed between the shaft bearing plate 34.The gear relation: drivewheel 46 is passed to driven pulley 47 by two transmission gear teeth 48 with rotational power, and single-wheel effect driven pulley 47 is a direction, and two-wheel effect driven pulley 47 is another direction; Drive 48 relies closely by commutation wheel seat 42, and its movement locus on shaft bearing plate 34 satisfies the commutation effect, and commutation wheel seat 42 1 ends link to each other with reversible claw 45, and the commutation handle vertically stretches out brush body 30 ends.Terminal 30 lids of brush body one brush body rear portion 25 both with 32, No. 1 nut 33 fixedly connected relation of 3 No. 1 bolts.Brush body rear portion 25, kinetoplast pipe 22, plug connection tube 23 in the brush body rear portion 25, its position is satisfied to be leaned on mutually with shaft bearing plate 34, and freely rotate, with No. 2 screw 35 screws 36 location, the built-in power transmission shaft 24 of connection tube, power transmission shaft 24 and drivewheel 46 coaxial one, it is terminal substantially swollen with brush body rear portion 25 at brush body 30 that commutation cassette holder 39 is passed bottom cover by reversible claw 45, fixing by two No. 3 screws, 40 screws 41, commutation is hung 43 be spun on the bolt of reversible claw 45 upper ends, laterally vertical with Commutating box 38, cover commutation lid 37, be fixed in the pawl hole with Commutating box lock pawl 44, satisfy in the commutation lid 37 commutation and cover 43 and stay along the lids 37 that commutate and to move up and down track and can just move.
Using method: hold the kinetoplast part, the kinetoplast pipe is in the centre of the palm, thumb and forefinger pinch the brush body rear portion, middle finger, the third finger, little finger of toe are held the spring pressuring plate body, toothpaste is sticked on the bristle, bristle partly is contained between lip and the tooth, suitably firmly bristle is pressed on the tooth, middle finger, the third finger, little finger of toe ceaselessly act on the spring compressed tablet with pressure and two pressure actions of pine, hands is made suitable push pull maneuver, as being the hair brush base of one-way movement, thumb push-and-pull Commutating box can brush tooth, lower tooth respectively.
The toothbrush that present design is produced can in use reach the purpose that physiology is brushed teeth naturally, can eliminate existing toothbrush fully is difficult to grasp, be difficult to operate the negative interaction that brings by the physiology brushing, the speed of brushing teeth is faster than traditional toothbrush, thereby can produce good social effect.Minimizing takes place because of the odontopathy that traditional toothbrush causes, and has saved medical expense, further promotes user health.If dynamical system uses micromotor more easy to operate, can make the child be happy to use and protect teenager teeth, use the attached power design of this programme can energy-conservationly greatly and easy to use be easy to popularization, make the oral cavity health cause more remarkable effect of society.
Claims (3)
1, a kind of physiological tooth, comprise brush body, be installed on the intravital bristle tuft of brush, be enclosed within brush body rear portion and two ratchet spring dynamical systems behind the brush body, it is characterized in that: two power transmission shafts (56) that are installed in the brush body (55) connect with the power transmission shaft (24) of two ratchet spring dynamical systems by its rotation steering mechanism, wherein two ratchet spring dynamical systems are by drivewheel (46), power transmission shaft (24) with the coaxial one of drivewheel (46), be enclosed within the power connector (23) on the power transmission shaft (24), be fixed on two the directions identical ratchet (20) of power transmission shaft (24) back segment by power connector (23), be enclosed within outer corresponding two ratchets (17) of ratchet, lean on the ratchet limit plug (13) of ratchet (17) mutually, be enclosed within power connector (23), kinetoplast pipe (22) on the ratchet limit plug (13), being fixed on spring on the kinetoplast pipe (22) props up and adds stake (14), be vertically fixed on spring and prop up the spring support (4) that adds in the stake (14), be enclosed within the power spring (8) of spring support (4) and be pressed in spring pressuring plate body (5) and two power steel wires (9) composition that power spring (8) is gone up and can be slided on support, wherein two power steel wires (9) respectively just around with back-roll on two ratchets (17), winding length is slightly larger than spring pressuring plate body (5) up-downgoing length, the end of two power steel wires (9) is just being walked around hanging axis (3) and is being fixed on the spring pressuring plate body (5) with the chute that two power steel wire (9) origin or beginnings pass spring support, hangs (2) by the fastening bolt of cantilever tip, binding nut lid (1) rotation makes hanging axis (3) tensioning power steel wire.
2, according to the described physiological tooth of claim 1, it is characterized in that: brush is installed in two power transmission shafts (56) in the brush body (55) and is the bristle (53) of radial field planting on rotating shaft front bristles seat (54) by brush body (55) to be formed; Wherein the driven pulley of rotating shaft rear end (47) connects with its rotation steering mechanism, this steering mechanism forms by the drivewheel (46) that is fixed on power transmission shaft (24) front end with by the drive (48) of its engagement, and they make them drive the bristle tuft rotation towards the direction of ecto-entad with the rear end engagement of two power transmission shafts (56) respectively.
3, according to the described physiological tooth of claim 1, it is characterized in that: brush is by brush body (30) and be installed in brush intravital two coaxial one driving pawls (50) impeller-hubs (31) driven pulleys (47), be enclosed within on the driving pawl (50) the crawler belt of forming by hair brush base (29) be the radiation bristle (28) of radial field planting on crawler belt and form; Wherein the rear end of driving pawl (50) impeller-hub (31) driven pulley (47) connects with its rotation steering mechanism, this steering structure is by the drivewheel (46) that is fixed on power transmission shaft (24) front end, form with the drive (48) of its engagement, wherein the drive of two engagements (48) is installed on the reversible claw moving up and down (45) simultaneously, when reversible claw (45) when moving up and down, realize that respectively two drives (48) act on simultaneously or a drive (48) acts on driving pawl (50) impeller-hub (31) driven pulley (47) engagement separately and realize its rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97107732A CN1108781C (en) | 1997-10-21 | 1997-10-21 | Rotary physiological tooth brush design plan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97107732A CN1108781C (en) | 1997-10-21 | 1997-10-21 | Rotary physiological tooth brush design plan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1218655A CN1218655A (en) | 1999-06-09 |
| CN1108781C true CN1108781C (en) | 2003-05-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97107732A Expired - Fee Related CN1108781C (en) | 1997-10-21 | 1997-10-21 | Rotary physiological tooth brush design plan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1108781C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101112333B (en) * | 2007-07-16 | 2011-05-04 | 孙忠 | Electric tooth brushing device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2293890A1 (en) * | 1974-12-10 | 1976-07-09 | Flandin Blety Georges | Electric toothbrush with interchangeable double head - has parallel shafts which rotate in opposite directions |
| DE2900274A1 (en) * | 1979-01-05 | 1980-07-17 | Mohammed Reza Haghayeghi | Electric tooth-brush with interchangeable brush rollers - rotated in opposite directions adjacent one another for brushing front and back of teeth |
| FR2489120A1 (en) * | 1980-09-03 | 1982-03-05 | Barcet Louis | Electric tooth-brush with contra-rotating brushes - uses single reversible electric motor driving two cylindrical brushes through gear train to provide contra-rotating brushing |
| US4370773A (en) * | 1980-07-10 | 1983-02-01 | Joseph Hadary | Toothbrush |
| WO1983003956A1 (en) * | 1982-05-06 | 1983-11-24 | Dejoux Andre | Electric tooth brush with rotary brushes |
| DE3306969A1 (en) * | 1982-11-29 | 1984-05-30 | Ludgerus F. 7994 Langenargen Schulte | Motor-driven tooth cleaning apparatus |
| WO1987000405A1 (en) * | 1985-07-24 | 1987-01-29 | Elio Gritti | Toothbrush with rotary brushes |
| DE3735436A1 (en) * | 1987-10-20 | 1989-05-03 | Hartmut Von Der Linde | Electrical toothbrush |
| CN2191574Y (en) * | 1994-04-28 | 1995-03-15 | 王存玉 | Rotating health-care toothbrush |
-
1997
- 1997-10-21 CN CN97107732A patent/CN1108781C/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2293890A1 (en) * | 1974-12-10 | 1976-07-09 | Flandin Blety Georges | Electric toothbrush with interchangeable double head - has parallel shafts which rotate in opposite directions |
| DE2900274A1 (en) * | 1979-01-05 | 1980-07-17 | Mohammed Reza Haghayeghi | Electric tooth-brush with interchangeable brush rollers - rotated in opposite directions adjacent one another for brushing front and back of teeth |
| US4370773A (en) * | 1980-07-10 | 1983-02-01 | Joseph Hadary | Toothbrush |
| FR2489120A1 (en) * | 1980-09-03 | 1982-03-05 | Barcet Louis | Electric tooth-brush with contra-rotating brushes - uses single reversible electric motor driving two cylindrical brushes through gear train to provide contra-rotating brushing |
| WO1983003956A1 (en) * | 1982-05-06 | 1983-11-24 | Dejoux Andre | Electric tooth brush with rotary brushes |
| DE3306969A1 (en) * | 1982-11-29 | 1984-05-30 | Ludgerus F. 7994 Langenargen Schulte | Motor-driven tooth cleaning apparatus |
| WO1987000405A1 (en) * | 1985-07-24 | 1987-01-29 | Elio Gritti | Toothbrush with rotary brushes |
| DE3735436A1 (en) * | 1987-10-20 | 1989-05-03 | Hartmut Von Der Linde | Electrical toothbrush |
| CN2191574Y (en) * | 1994-04-28 | 1995-03-15 | 王存玉 | Rotating health-care toothbrush |
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| Publication number | Publication date |
|---|---|
| CN1218655A (en) | 1999-06-09 |
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