US20030140437A1 - Powered toothbrush - Google Patents
Powered toothbrush Download PDFInfo
- Publication number
- US20030140437A1 US20030140437A1 US10/066,459 US6645902A US2003140437A1 US 20030140437 A1 US20030140437 A1 US 20030140437A1 US 6645902 A US6645902 A US 6645902A US 2003140437 A1 US2003140437 A1 US 2003140437A1
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- US
- United States
- Prior art keywords
- tuft block
- primary
- toothbrush
- bristles
- block
- 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.)
- Abandoned
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- 230000033001 locomotion Effects 0.000 claims abstract description 27
- 230000010355 oscillation Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 description 16
- 238000004140 cleaning Methods 0.000 description 10
- 230000009471 action Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 238000005498 polishing Methods 0.000 description 4
- 230000002087 whitening effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007407 health benefit Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007787 solid Substances 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
- A61C17/32—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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
- A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
- A61C17/349—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor with multiple brush bodies
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/222—Brush body details, e.g. the shape thereof or connection to 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
- A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
- A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
- A61C17/3409—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor characterized by the movement of the brush body
- A61C17/3436—Rotation around the axis perpendicular to the plane defined by the bristle holder
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
- A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
- A61C17/3409—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor characterized by the movement of the brush body
- A61C17/3445—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
- 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
- A61C17/3454—Translation along the axis perpendicular of the axis of toothbrush handle and in the plane defined by the bristle holder
Definitions
- the present invention is directed to a powered toothbrush refill head that includes an oscillating block having bristles.
- Various types of such toothbrushes are generally known in the art.
- Reference is made to U.S. Pat. No. 5,625,916 which relates to an electrically driven toothbrush which includes a motor drive for rotating a drive shaft.
- the drive shaft is connected to a bristle holder on the head of the toothbrush in such a manner that rotation of the drive shaft causes the bristle holder to rotationally oscillate back and forth.
- Various other arrangements are known for oscillating a bristle holder mounted to the head of an electric toothbrush.
- U.S. Pat. No. 5,416,942 describes a motorized toothbrush having two concentrically arranged brushes coaxially supported in a shell.
- the brushes are driven by a drive shaft connected to a spindle which is bent to form two inclined arms at its end. Each of the arms is located in a slot in each respective brush.
- the inclined arms cause each brush to rotate about their axis in opposite directions to each other.
- the motorized toothbrush described in PCT international Publication No. WO 00/78244 similarly includes two coaxially mounted first and second brush heads which rotationally oscillate with respect to each other in different directions and/or at different speeds.
- Two different drive mechanisms are disclosed.
- One drive mechanism includes a linearly reciprocating actuator to which two connecting rods are attached.
- the connecting rods are formed from a single piece of wire generally V-shaped with an end of each connecting rod being mounted to a different one of the brush heads. As the actuator and connecting rods are moved linearly back and forth the ends of the connecting rods are moved toward and away from each other to cause the brush heads to rotate.
- each brush head is provided with a toothed region which engages a conical gear at the distal end of a rotationally oscillating shaft so that rotational oscillation of the shaft is transmitted by the conical gear to each toothed region to thereby rotationally oscillate the brush heads.
- U.S. Pat. No. 5,836,030 discloses a rather complicated arrangement for a dental cleaning device having two brush holders.
- One of the brush holders is reciprocated about a pivotal axis as a result of a pivotal coupling between the brush holder and a connecting rod in the drive means.
- the other brush holder is also reciprocated about a pivotal axis as a result of a coupling between the brush holder and a drive member of the drive means.
- the two brush holders are located adjacent to each other the reciprocation of one of the brush holders is not utilized to cause the reciprocation of the other brush holder. Instead, both brush holders oscillate as a result of each brush holder being coupled to the drive means.
- U.S. Pat. No. 6,237,178 discloses a toothbrush having a bristle holder which is rotated reciprocally along a circularly arcuate path.
- An interdental bristle holder is mounted longitudinally outwardly of the bristle holder.
- the patent states that the interdental bristle holder is reciprocatingly movable transversely to the longitudinal axis and is in driving engagement with the bristle holder so that the interdental bristle holder reciprocates transversely to the longitudinal axis when the bristle holder is reciprocated along the circularly arcuate path.
- the drawings illustrate the interdental bristle holder to have an arcuate edge which is parallel to and extends partially around the arcuate edge of the bristle holder 40 . Accordingly, there would be little room for any significant transverse reciprocation.
- U.S. Pat. No. 6,308,358 discloses a toothbrush having a bristle holder and an interdental bristle holder.
- the patent states that each of these bristle holders performs a pivotal movement along a circular path, but does not state how the bristle holders are driven.
- U.S. Pat. No. 3,242,516 discloses a toothbrush having a central set of bristles with a further set of bristles on each side thereof.
- the central set is driven by a drive mechanism.
- the central set includes a gear which meshes with gears for each of the other two sets so that rotation of the central set of brush elements will cause the other sets of brush elements to also rotate. No mention is made of rotating the brush elements back and forth in an oscillating manner.
- U.S. Pat. No. 5,353,460 discloses a power driven toothbrush which uses a rather complicated drive arrangement including various types of gears and modified shaft structure to rotationally oscillate a brush carrier.
- the brush carrier is linked to a brush holder so that the brush holder is also rotationally oscillated.
- U.S. Pat. No. 5,504,959 discloses an electric toothbrush wherein a pair of rotating bases holding brush bundles is rotatably mounted in a pair of pins secured to a slider.
- a pinion is secured to each base for engagement with a rack of a holder.
- the slider is mounted in the holder and moved longitudinally by a drive mechanism. As the slider moves longitudinally the engagement of the pinions with the rack causes the bases to rotate in a reciprocating motion to thereby reciprocatingly rotate the brush bundles.
- PCT International Publication No. WO 01/91603 discloses a toothbrush having sets of bristle tufts which reciprocate in their angular orientation.
- An object of this invention is to provide a powered toothbrush refill head which is capable of delivering a cleaning, polishing, whitening action in addition to the cleaning efficiency of a typical powered toothbrush refill product.
- a further object of this invention is to provide various techniques for adding to the cleaning efficiency of an oscillating block in the toothbrush head.
- the toothbrush head includes a primary tuft block mounted to the head.
- the primary tuft block is mounted in such a manner as to oscillate back and forth preferably rotationally.
- the head includes a secondary tuft block which is driven to further oscillate back and forth while the primary tuft block is oscillated back and forth.
- the secondary tuft block is interconnected with the primary tuft block so that oscillating rotation of the primary tuft block causes an oscillating rotation of the secondary tuft block.
- the secondary tuft block comprises a plurality of side by side plates connected to the primary tuft block in such a manner that the side by side plates oscillate linearly in a direction parallel to the handle of the toothbrush while the primary tuft block is oscillating.
- the secondary tuft block is a plurality of rows of bars extending laterally across the head perpendicular to the handle.
- the bars oscillate back and forth across the tuft head in a direction perpendicular to the handle while the primary tuft block is oscillating.
- FIG. 1 is a top plan view of a powered toothbrush refill head in accordance with one practice of this invention
- FIG. 2 is a side elevational view of the head shown in FIG. 1;
- FIG. 3 is a bottom plan view of the head shown in FIGS. 1 - 2 ;
- FIGS. 4 - 5 are end elevational views of the head shown in FIGS. 1 - 3 ;
- FIGS. 6 - 7 are perspective views of the head shown in FIGS. 1 - 5 in the upright and inverted positions;
- FIG. 8 is a cross-sectional plan view of a toothbrush incorporating the head shown in FIGS. 1 - 7 ;
- FIG. 9 is an enlarged side elevational view in cross-section of the head shown in FIGS. 1 - 8 ;
- FIG. 10 is a top plan view showing the drive mechanism for the head shown in FIGS. 1 - 9 ;
- FIG. 10A is a view similar to FIG. 10 of a modified form of drive mechanism
- FIG. 11 is a top plan view of a powered toothbrush refill head in accordance with a further embodiment of this invention.
- FIG. 12 is a side elevational view of the head shown in FIG. 11;
- FIG. 13 is a bottom plan view of the head shown in FIGS. 11 - 12 ;
- FIG. 14 is a side elevational view similar to FIG. 12 with the head inverted;
- FIGS. 15 - 16 are end elevational views of the head shown in FIGS. 11 - 14 ;
- FIGS. 17 - 18 are perspective views showing the head of FIGS. 11 - 16 in the upright and inverted positions;
- FIGS. 19 - 20 are plan views of the drive mechanism for the head shown in FIGS. 11 - 18 in different phases of operation;
- FIG. 21 is a top plan view of a powered toothbrush refill head in accordance with yet another embodiment of this invention.
- FIG. 22 is a side elevational view of the head shown in FIG. 21;
- FIG. 23 is a bottom plan view of the head shown in FIG. 22;
- FIG. 24 is a view similar to FIG. 22 showing the head inverted
- FIGS. 25 - 26 are end elevational views of the head shown in FIGS. 21 - 24 ;
- FIGS. 27 - 28 are perspective views of the head shown in FIGS. 21 - 26 in the upright and inverted positions;
- FIG. 29 is a top plan view of a variation of the powered toothbrush refill head shown in FIGS. 21 - 28 ;
- FIG. 30 is a side elevational view of the head shown in FIG. 29;
- FIG. 31 is a bottom plan view of the head shown in FIGS. 29 - 30 ;
- FIG. 32 is a view similar to FIG. 30 with the head inverted;
- FIGS. 33 - 34 are end elevational views of the head shown in FIGS. 29 - 32 ;
- FIGS. 35 - 36 are perspective views of the head shown in FIGS. 29 - 34 in the upright and inverted positions;
- FIG. 37 is a top plan view of yet another variation of the powered toothbrush refill head shown in FIGS. 21 - 28 ;
- FIG. 38 is a side elevational view of the head shown in FIG. 37;
- FIG. 39 is a bottom plan view of the head shown in FIGS. 37 - 38 ;
- FIG. 40 is a view similar to FIG. 38 with the head inverted;
- FIGS. 41 - 42 are end elevational views of the head shown in FIGS. 37 - 40 ;
- FIGS. 43 - 44 are perspective views of the head shown in FIGS. 37 - 42 in the upright and inverted positions;
- FIG. 45 is a top plan view of still yet another variation of the powered toothbrush refill head shown in FIGS. 21 - 28 ;
- FIG. 46 is a side elevational view of the head shown in FIG. 45;
- FIG. 47 is a bottom plan view of the head shown in FIGS. 45 - 46 ;
- FIG. 48 is a view similar to FIG. 46 showing the head in an inverted position
- FIGS. 49 - 50 are end elevational views of the head shown in FIGS. 45 - 48 ;
- FIGS. 51 - 52 are perspective views of the head shown in FIGS. 45 - 50 in the upright and inverted positions;
- FIG. 53 is a plan view of the drive mechanism for the heads shown in FIGS. 21 - 52 in one phase of operation;
- FIG. 54 is a cross-sectional view taken through FIG. 53 along the line 54 - 54 ;
- FIG. 55 is a view similar to FIG. 53 showing a different phase of operation
- FIG. 55A is a view similar to FIG. 55 of a modified mode of operation.
- FIG. 56 is a cross-sectional view taken through FIG. 55 along the line 56 - 56 .
- FIGS. 1 - 10 are directed to a practice of the invention wherein a powered toothbrush refill head 10 is provided with a primary tuft block 12 and a secondary tuft block 14 mounted to the refill arm 16 of a toothbrush 28 at the end of handle extension 18 at a location displaced from the primary tuft block.
- Each tuft block contains various types of bristles or brushing elements.
- the primary tuft block 12 has a plurality of bristles arranged in any suitable pattern.
- an outer generally circularly arranged row of natural bristles 20 is located around the periphery of tuft block 12 .
- An inner set of natural bristles 22 is located in a generally circular pattern concentrically within the circular arrangement of outer bristles 20 . As illustrated in FIGS. 2 and 6 some of the bristles are shorter than other bristles.
- each of primary tuft block 12 and secondary tuft block 14 is of generally circular cross-sectional shape. Secondary tuft block 14 is located outwardly of primary tuft block 12 and is of smaller size than primary tuft block 12 .
- Secondary tuft block 14 also includes a plurality of bristles.
- these bristles include four sets of natural bristle tufts 24 separated from each other by rubber bristles or massage elements 26 which are of the same height as bristles 24 .
- bristles for primary tuft block 12 and secondary tuft block 14 is merely for exemplary purposes.
- the invention can, however, be practiced with various combinations of the same or different bristle configurations (such as stapled, IMT, etc.) and/or with the same or different bristle materials (such as nylon bristles, spiral bristles, rubber bristles, etc.). It is thereby possible to select the combination of bristle configurations and bristle materials to achieve specific intended results, such as to create as much movement from the oscillating tuft heads to deliver additional oral health benefits like enhanced cleaning, tooth polishing and/or tooth whitening.
- the head 16 could include other bristles such as on non-movable portions of the heads separate from the bristles on the oscillating tufts blocks 12 , 14 .
- rubber triangular bristles or massage elements could be located on opposite portions of the head 16 between the tuft blocks 12 and 14 .
- the bristles for the oscillating tuft blocks could include combinations of natural or rubber bristles or could include solely natural or solely rubber bristles.
- bristle is meant to include cleaning elements which may be of solid construction such as rubber massage members or stimulators and is not intended to be limited to tufts or natural bristles.
- FIGS. 8 - 9 illustrate an exemplary type of drive structure for oscillating the primary tuft block 12 .
- This drive structure incorporates the type of drive disclosed in U.S. Pat. No. 5,625,916, all of the details of which are incorporated herein by reference thereto.
- the toothbrush 28 has a hollow housing 29 in which a plurality of batteries 30 , 30 are mounted to power the motor 32 as actuated by an on/off switch (not shown).
- Motor 32 is connected to coupling 34 which grips one end of a drive shaft 36 so as to rotate the drive shaft 36 .
- the primary tuft block 12 has a slot or opening 38 into which the offset crank end 40 of shaft 36 is mounted.
- the rotating crank end 40 causes the primary tuft block 12 to rotate in a back and forth oscillating manner about shaft or post 42 which is mounted to refill arm 16 .
- shaft or post 42 which is mounted to refill arm 16 .
- the type of drive mechanism described and illustrated in FIGS. 8 - 9 is a particularly preferred type of drive mechanism because of its simplicity and its effectiveness.
- the drive shaft 36 extends axially from the motor 32 and is mounted directly to the primary tuft block 12 .
- the primary tuft block 12 is oscillated by a drive which comprises an axially oriented shaft extending from the motor to the primary tuft block without the need for any intervening gears, etc.
- a drive which comprises an axially oriented shaft extending from the motor to the primary tuft block without the need for any intervening gears, etc.
- direct drive from a shaft axially extending from the motor to the primary tuft block is intended to mean such a drive mechanism which does not require additional complicated structure such as gears and the like to oscillate the primary tuft block.
- FIG. 10 illustrates a drive connection between primary tuft block 12 and secondary tuft block 14 .
- primary tuft block 12 includes a finger or extension 44 which is located in slot or cutout 46 in secondary tuft block 14 . Accordingly, as primary tuft block 12 reciprocates back and forth in a rotational manner the finger 44 causes a like oscillation to result from secondary tuft block 14 .
- FIG. 9 illustrates the secondary tuft block 14 to be mounted on its post or shaft 48 secured to refill arm 16 to permit such oscillating rotational movement.
- FIGS. 8 - 10 illustrate the oscillating movement of primary tuft block 12 to result from a rotating drive shaft 36 with its crank end 40
- other types of oscillating drive mechanisms may be utilized as is known in the art such as gears, cams and the like. Such drive mechanisms, however, are less preferred.
- FIGS. 9 - 10 illustrate a preferred drive transmitting connection from the primary tuft block to the secondary tuft block by means of the finger 44 extending into cutout 46
- the drive transmitting connection could be from a finger of the secondary tuft block located in a cutout in the primary tuft block.
- other types of drive transmitting transmissions or connections could also be used such as links or cams.
- FIG. 10A shows a pin 45 straddling the primary tuft block 12 and the secondary tuft block 14 .
- Pin 45 could be pivotally secured to each tuft block so that an oscillating rotation of primary tuft block 12 would be transmitted to secondary tuft block 14 thereby causing an oscillating rotation in the opposite direction of secondary tuft block 14 .
- pin 45 could be rigidly secured to or even integral with one of the tuft blocks and pivotally mounted to the other tuft block.
- An advantageous aspect of the drive connection between primary tuft block 12 and secondary tuft block 14 is that primary tuft block 12 rotates back and forth only over a limited arc, rather than a full 360° and that this oscillating or limited rotation is transmitted to the secondary tuft block to result in a like type of limited rotational oscillation.
- the oscillation of the secondary tuft block is achieved by a single drive connecting member, namely, the finger 44 mounted in the slot or cutout 46 , rather than for example sets of intermeshed gear teeth.
- the drive connecting member is a pin 45 .
- FIGS. 1 - 10 thus utilizes a drive assembly in the handle of the toothbrush wherein the drive assembly includes a drive connection to the primary tuft block 12 so as to oscillate the primary tuft block 12 back and forth on its shaft 42 .
- a drive transmitting connection namely, the finger 44 and slot 46 or the pin 45 between the primary tuft block 12 and the secondary tuft block 14 results in moving the secondary tuft block 14 back and forth in an oscillating manner while the primary tuft block is oscillating.
- the secondary tuft block also has a drive transmitting connection to still yet a further or tertiary tuft block.
- the secondary and tertiary tuft blocks could utilize a similar type connection as the finger and slot that is utilized between the primary and secondary tuft blocks or by using any other suitable drive transmitting connection.
- the tertiary tuft block could drive yet a further tuft block, etc.
- the number of tuft blocks would be determined by space constraints and practicality. Having only a primary and a secondary tuft blocks is preferred.
- refill arm would be modified in shape to accept a second round tuft block 14 for connection with the primary round refill design or tuft block 12 .
- second head shape which could be a compact head, a regular head, full head, etc. so that different sizes/actions could be offered to the consumer.
- FIG. 10 illustrates the primary tuft block 12 to be of larger size than the secondary tuft block 14 .
- FIG. 10A shows a practice of the invention where both tuft blocks are of the same size.
- the secondary tuft block could be larger than the primary tuft block. It is particularly preferred to have both tuft blocks the same size since this lends itself to the possibility of making both tuft blocks of identical structure. This would simplify and reduce manufacturing costs.
- the slot 38 which accommodates the end 40 of shaft 36 for the primary tuft block could be used to function as the slot 46 of the secondary tuft block to accommodate the finger 44 .
- both tuft blocks are made of identical structure the secondary tuft block would have a non-functioning finger.
- the secondary tuft block could still be provided with a non-functional slot identical to slot 38 of the primary tuft block so that the two tuft blocks are interchangeable during assembly.
- FIGS. 11 - 20 relate to a further embodiment of this invention where there is at least one secondary tuft block at a location displaced from the primary tuft block.
- the head 10 A includes a primary tuft block 12 and a secondary tuft block which is illustrated as being in the form of a pair of plates 50 , 52 mounted on refill arm 16 .
- the two plates 50 , 52 are mounted for oscillatory movement back and forth in a direction generally parallel to handle extension 18 . This movement, in combination with the primary tuft block 12 oscillating rotationally, thereby allows the refill to deliver an added cleaning, polishing, whitening action in addition to the cleaning efficiency of a typical powered toothbrush refill product.
- primary tuft block 12 includes a plurality of sets of natural bristles 54 separated by bristles of IMT block configuration 56 . All of the bristles 54 are of the same height which is slightly higher than bristles 56 . Plates 50 , 52 include two longitudinal rows of bristles wherein the rows of bristles include natural bristles 58 and rubber fingers/bristles 60 . The height of the bristles for each plate 50 , 52 tapers so as to create a ramp effect.
- the bristles for plate 50 are higher at the end of plate 50 located nearer to handle extension 18 creating a downwardly inclined ramp toward primary tuft block 12 .
- the bristles in plate 52 have the opposite ramp effect where the tallest bristles are closest to primary tuft block 12 .
- the bristles may also be inclined toward and away from the handle as best shown in FIG. 12.
- FIGS. 19 - 20 illustrate a drive mechanism for causing the plates 50 , 52 to reciprocate linearly in the same direction as handle extension 18 while the primary tuft block 12 oscillates back and forth rotationally.
- the drive connection is located below the outer surface of the primary tuft block 12 and the outer surface of the secondary tuft block from which the bristles extend outwardly away from refill arm 16 .
- the handle 18 includes a rotating drive shaft 36 which has a crank end 40 engaged in slot 38 of primary tuft block 12 so that rotation of drive shaft 36 causes the primary tuft block 12 to rotate about its shaft or post 42 .
- the drive mechanism is preferably a direct drive from a shaft extending from the motor to the primary tuft block.
- the plates 50 , 52 are connected to oscillating primary tuft block 12 in such a manner that the rotational movement of primary tuft block 12 causes the plates to reciprocate back and forth in a direction parallel to handle extension 18 .
- the connection is accomplished by a link 62 connecting each plate 50 , 52 to primary tuft block 12 .
- FIG. 19 shows the plates in a neutral or centered condition.
- FIG. 20 shows the condition where the primary tuft block 12 is rotating in a counterclockwise direction. The crank end 40 is shifted to the right as shown in FIG. 20.
- the links 62 , 62 cause the plate 50 to be pulled in a direction away from handle extension 18 , while the plate 52 is pushed in a direction toward the handle extension.
- the links could be mounted in such a manner that both plates 50 , 52 move simultaneously in the same direction.
- plates 50 , 52 could be mounted in tracks in refill arm 16 to assure that the movement of the plates is a straight back and forth linear movement thereby avoiding any side shifting or rotation.
- each plate 50 , 52 which is disposed adjacent to the primary tuft block 12 is arcuate along an arc generally parallel to the curvature of the round or circular primary tuft block 12 .
- FIGS. 11 - 20 illustrate the secondary tuft block to be in the form of two side by side plates
- the invention may be practiced with other variations wherein there is an up and down movement parallel to the longitudinal axis of the handle extension 18 .
- two or more adjacent plates could move in the same direction.
- each plate may move in an opposite direction to its adjacent plate.
- the necessary points of connection would be made between each plate and the oscillating primary tuft block to cause the linear reciprocating movement of the plates and their outwardly extending bristles.
- FIGS. 21 - 56 illustrate a third variation of the invention wherein there is a reciprocating movement of a secondary tuft block at a location displaced from the primary tuft block while the primary tuft block rotates in an oscillating manner.
- the oscillating or reciprocating movement is a side to side movement in a direction perpendicular to the longitudinal axis of the handle extension 18 .
- FIGS. 21 - 52 illustrate various exemplary possible combinations of bristle structure that could be used with this practice of the invention. One such combination of bristle structure is illustrated in FIGS. 21 - 28 .
- the head includes a primary tuft block 12 with the secondary tuft block being formed by parallel laterally disposed bars 64 , 66 , 68 , 70 .
- the bars 64 , 66 , 68 , 70 are actually located below the surface with the bristles on the bars extending outwardly through slots in refill arm 16 .
- FIGS. 21 - 28 illustrate head 10 B with one variation of bristle combination.
- a set of stimulators 72 is arranged around the periphery of refill arm 16 outwardly of the laterally reciprocating bristle bars 64 , 66 , 68 , 70 .
- the bristles 74 on the bristle bars taper in height to create a ramped affect.
- the tapering may be uniform in the sense that the bristles in each row taper in the same direction laterally across head 10 B or the tapering may alternate from row to row or the tapering could be such that the bristles 74 in rows or on bars 68 and 70 are the same as each other while being opposite to the tapering for the bristles on bars 66 , 68 .
- FIG. 43 also illustrates the ramped bristles 74 without peripheral stimulators 72 .
- the head 10 C also includes a set of peripherally located stimulators 72 .
- the bristles 76 for laterally oscillating bars 64 , 66 , 68 and 70 are all of the same height, rather than being ramped.
- FIGS. 37 - 44 illustrate a variation where the head 10 D has its bristles 74 of tapering height to create a ramp effect for each laterally oscillating bar 64 , 66 , 68 , 70 in the same manner as described with regard to head 10 B. Unlike head 10 B, however, head 10 D omits the peripherally located stimulators.
- FIGS. 45 - 52 illustrate a head 10 E which is similar to head 10 C in that the bristles 76 are of the same height but the head does not include any stimulators surrounding the bristles 76 .
- the bristles 74 or 76 extend outwardly from the refill arm 16 through slots 71 formed in the refill arm with the rows of bristles being mounted on the bars which are actually located below the outer surface of refill arm 16 .
- FIGS. 53 - 56 illustrate one technique for causing the laterally arranged bars 64 , 66 , 68 and 70 to reciprocate back and forth while the primary tuft block 12 reciprocates rotationally.
- the drive shaft 36 has its crank end 40 mounted in slot 38 of primary tuft block 12 to cause the primary tuft block 12 to oscillate rotationally on its post or shaft 42 .
- This drive assembly which includes the rotating shaft 36 and its drive connection 38 , 40 thus causes the primary tuft block 12 to oscillate back and forth.
- FIGS. 54 and 56 illustrate how the cam 82 associated with bar 68 causes the bar to shift laterally while drive shaft 36 rotates.
- the refill arm 16 includes a recess 88 of sufficient size to permit the lateral back and forth shifting in a direction perpendicular to drive shaft 36 and the longitudinal axis of handle extension 18 .
- Cam 82 is located in a slot or cutout 86 in bar 68 .
- the cam 82 is in its centered condition with the cam located upwardly from drive shaft 36 .
- FIG. 54 also shows in phantom the cam rotated 180° which would still result in the bar 68 being in its centered condition.
- FIG. 56 illustrates in solid lines the cam 82 rotated 90° from its centered condition which in FIG. 56 would cause the bar 68 to shift to the right to its extreme right-hand most position.
- FIG. 56 shows in phantom the position of the cam and the slot or cutout 86 when the cam 82 is shifted 180° from the position shown in FIG. 56 which would then cause the bar 68 to be shifted to its extreme leftmost position. Accordingly, while shaft 36 rotates 360° this rotation is transmitted by crank end 40 to cause a rotational oscillation of primary tuft block 12 and the rotating cam 82 causes a lateral oscillation of bar 68 .
- Cam 82 and cam 78 are mounted identically to each other on shaft 36 . As a result bars 64 and 68 move in unison in the same direction as each other. Conversely, cams 80 and 84 are configured and mounted to be opposite cams 78 and 82 as shown in FIG. 55 so that when bars 64 and 68 move toward the right under the influence of their cams 78 and 82 the bars 66 and 70 move toward the left under their influence of their cams 80 and 84 .
- FIG. 55 illustrates each bar to be moved in a direction opposite to its adjacent bar.
- FIG. 55A shows a variation wherein the cams are arranged so that pairs of adjacent bars move in the same direction.
- the bars 64 and 66 move in the same direction while adjacent bars 68 , 70 move in the opposite direction.
- the invention could be practiced with only a single bar moving back and forth in a lateral direction perpendicular to the longitudinal axis of handle 18 .
- sets of pairs of bars are the preferred practice of this invention.
- Each set of bars could be alternately arranged bars (as in FIG. 55) or could be adjacent bars (as in FIG. 55A).
- the invention could be practiced with greater or lesser number of bars arranged in pairs or arranged for individual movement by modifying the cam location and shape on shaft 36 . For example, a total of six reciprocating bars could be used arranged in two sets each having three alternately located bars or in three sets of adjacent bars.
- cams 78 , 80 , 82 and 84 are located on shaft 36 in a different angular orientation from each other whereby each of the bars would be oscillated out of unison with the other bars.
- FIGS. 21 - 56 may thus be practiced by modifying the drive shaft 36 to create a cam action to drive a series of horizontally aligned bristle rows.
- the bristle rows 64 , 66 , 68 , 70 are connected into two subsets 64 , 68 and 66 , 70 that operate in opposing directions as the drive shaft 36 rotates.
- This resulting action in combination with the round oscillating block 12 creates enough movement to deliver additional oral health benefits like more efficacious cleaning, tooth polishing, and/or tooth whitening.
- the additional movements can also be enhanced by different bristle configurations and bristle materials as described.
- the fingers provide gum massage in addition to the action supplied by the extra bristle rows.
- the bristles could also be inclined either in the same or opposite to the inclination of the adjacent rows of bristles.
- the rows of bristles could include ramped bristles for one row with bristles of equal height for an adjacent row.
- a single cleaning element such as an elongated rubber finger, could be used for one or more of the rows.
- the invention may also be practiced where instead of rotating, the primary tuft block oscillates back and forth parallel to the handle or side to side, although a rotational oscillation is preferred. It is also to be understood that while the invention has been described in its preferred manner of causing oscillation of the secondary tuft blocks other types of drive mechanisms may be used within the spirit of this invention.
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- 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)
Priority Applications (52)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/066,459 US20030140437A1 (en) | 2002-01-31 | 2002-01-31 | Powered toothbrush |
US10/119,222 US20030140435A1 (en) | 2002-01-31 | 2002-04-09 | Powered toothbrush |
US10/260,583 US6892412B2 (en) | 2002-01-31 | 2002-09-27 | Powered toothbrush |
MYPI20030245A MY144302A (en) | 2002-01-31 | 2003-01-24 | Powered toothbrush |
ARP030100281A AR038241A1 (es) | 2002-01-31 | 2003-01-30 | Cepillo de dientes electrico |
EP03705994A EP1474066B1 (en) | 2002-01-31 | 2003-01-30 | Powered toothbrush |
RU2004126315/14A RU2004126315A (ru) | 2002-01-31 | 2003-01-30 | Зубная щетка, обеспечиваемая энергией |
ES03705994T ES2326164T3 (es) | 2002-01-31 | 2003-01-30 | Cepillo de dientes electrico. |
MXPA04007373A MXPA04007373A (es) | 2002-01-31 | 2003-01-30 | Cepillo de dientes con potencia. |
PCT/US2003/002762 WO2003063722A1 (en) | 2002-01-31 | 2003-01-30 | Powered toothbrush |
DE60327304T DE60327304D1 (de) | 2002-01-31 | 2003-01-30 | Motorisch angetriebene zahnbürste |
CN 03806979 CN1642494A (zh) | 2002-01-31 | 2003-01-30 | 一种电动牙刷 |
AT09158250T ATE511813T1 (de) | 2002-01-31 | 2003-01-30 | Angetriebene zahnbürste |
PL03370421A PL370421A1 (en) | 2002-01-31 | 2003-01-30 | Powered toothbrush |
AT09158251T ATE518495T1 (de) | 2002-01-31 | 2003-01-30 | Angetriebene zahnbürste |
ES09158251T ES2370194T3 (es) | 2002-01-31 | 2003-01-30 | Cepillo de dientes alimentado eléctricamente. |
RU2004126319/14A RU2309704C2 (ru) | 2002-01-31 | 2003-01-30 | Зубная щетка, обеспечиваемая энергией (варианты) |
PCT/US2003/002811 WO2003063723A1 (en) | 2002-01-31 | 2003-01-30 | Powered toothbrush |
BR0307363-7A BR0307363A (pt) | 2002-01-31 | 2003-01-30 | Escova de dentes energizada |
TW092102088A TWI298631B (en) | 2002-01-31 | 2003-01-30 | Powered toothbrush |
BRPI0307358-0A BR0307358B1 (pt) | 2002-01-31 | 2003-01-30 | Escova de dentes energizada |
CA2474399A CA2474399C (en) | 2002-01-31 | 2003-01-30 | Powered toothbrush |
EP03705985A EP1471852A1 (en) | 2002-01-31 | 2003-01-30 | Powered toothbrush |
EP09158251A EP2090266B1 (en) | 2002-01-31 | 2003-01-30 | Powered toothbrush |
PL03370060A PL370060A1 (en) | 2002-01-31 | 2003-01-30 | Powered toothbrush |
KR10-2004-7011725A KR20040075966A (ko) | 2002-01-31 | 2003-01-30 | 동력구동형 칫솔 |
AT03705994T ATE429189T1 (de) | 2002-01-31 | 2003-01-30 | Motorisch angetriebene zahnbürste |
PE2003000108A PE20030734A1 (es) | 2002-01-31 | 2003-01-30 | Cepillo de dientes electrico |
KR1020047011724A KR100956461B1 (ko) | 2002-01-31 | 2003-01-30 | 동력형 칫솔 |
NZ534515A NZ534515A (en) | 2002-01-31 | 2003-01-30 | Powered toothbrush |
CA002474394A CA2474394A1 (en) | 2002-01-31 | 2003-01-30 | Powered toothbrush |
CA2759094A CA2759094C (en) | 2002-01-31 | 2003-01-30 | Powered toothbrush |
MXPA04007374A MXPA04007374A (es) | 2002-01-31 | 2003-01-30 | Cepillo de dientes con potencia. |
UY27631A UY27631A1 (es) | 2002-01-31 | 2003-01-30 | Cepillo de dientes eléctrico |
ES09158250T ES2366256T3 (es) | 2002-01-31 | 2003-01-30 | Cepillo de dientes eléctrico. |
CNB038070375A CN100374091C (zh) | 2002-01-31 | 2003-01-30 | 一种电动牙刷 |
EP09158250A EP2092910B1 (en) | 2002-01-31 | 2003-01-30 | Powered toothbrush |
AU2003207756A AU2003207756B2 (en) | 2002-01-31 | 2003-01-30 | Powered toothbrush |
PA20038564701A PA8564701A1 (es) | 2002-01-31 | 2003-01-31 | Cepillo de diente impulsado |
ZA200406202A ZA200406202B (en) | 2002-01-31 | 2004-08-03 | Powered toothbrush. |
ZA200406201A ZA200406201B (en) | 2002-01-31 | 2004-08-03 | Powered toothbrush. |
CO04083712A CO5600991A2 (es) | 2002-01-31 | 2004-08-26 | Cepillo dental accionado mecanicamente |
CO04083714A CO5600992A2 (es) | 2002-01-31 | 2004-08-26 | Cepillo de dientes electrico |
NO20043609A NO20043609L (no) | 2002-01-31 | 2004-08-30 | Motorisert tannborste |
NO20043608A NO20043608L (no) | 2002-01-31 | 2004-08-30 | Motorisert tannborste |
US10/970,722 US7428766B2 (en) | 2002-01-31 | 2004-10-22 | Powered toothbrush |
HK05103670.6A HK1070264A1 (en) | 2002-01-31 | 2005-04-29 | Powered toothbrush |
US11/130,273 US7430778B2 (en) | 2002-01-31 | 2005-05-17 | Powered toothbrush |
US12/194,056 US8020238B2 (en) | 2002-01-31 | 2008-08-19 | Powered toothbrush |
US12/198,474 US7900309B2 (en) | 2002-01-31 | 2008-08-26 | Powered toothbrush |
HK09112179.9A HK1132896A1 (en) | 2002-01-31 | 2009-12-24 | Powered toothbrush |
HK09112180.6A HK1132897A1 (en) | 2002-01-31 | 2009-12-24 | Powered toothbrush |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/066,459 US20030140437A1 (en) | 2002-01-31 | 2002-01-31 | Powered toothbrush |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/119,222 Continuation-In-Part US20030140435A1 (en) | 2002-01-31 | 2002-04-09 | Powered toothbrush |
US10/260,583 Continuation-In-Part US6892412B2 (en) | 2002-01-31 | 2002-09-27 | Powered toothbrush |
US10/970,722 Continuation US7428766B2 (en) | 2002-01-31 | 2004-10-22 | Powered toothbrush |
Publications (1)
Publication Number | Publication Date |
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US20030140437A1 true US20030140437A1 (en) | 2003-07-31 |
Family
ID=27610489
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/066,459 Abandoned US20030140437A1 (en) | 2002-01-31 | 2002-01-31 | Powered toothbrush |
US10/119,222 Abandoned US20030140435A1 (en) | 2002-01-31 | 2002-04-09 | Powered toothbrush |
US10/970,722 Expired - Fee Related US7428766B2 (en) | 2002-01-31 | 2004-10-22 | Powered toothbrush |
US12/194,056 Expired - Lifetime US8020238B2 (en) | 2002-01-31 | 2008-08-19 | Powered toothbrush |
US12/198,474 Expired - Lifetime US7900309B2 (en) | 2002-01-31 | 2008-08-26 | Powered toothbrush |
Family Applications After (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/119,222 Abandoned US20030140435A1 (en) | 2002-01-31 | 2002-04-09 | Powered toothbrush |
US10/970,722 Expired - Fee Related US7428766B2 (en) | 2002-01-31 | 2004-10-22 | Powered toothbrush |
US12/194,056 Expired - Lifetime US8020238B2 (en) | 2002-01-31 | 2008-08-19 | Powered toothbrush |
US12/198,474 Expired - Lifetime US7900309B2 (en) | 2002-01-31 | 2008-08-26 | Powered toothbrush |
Country Status (24)
Country | Link |
---|---|
US (5) | US20030140437A1 (pt) |
EP (3) | EP1474066B1 (pt) |
KR (2) | KR20040075966A (pt) |
CN (1) | CN100374091C (pt) |
AR (1) | AR038241A1 (pt) |
AT (3) | ATE429189T1 (pt) |
AU (1) | AU2003207756B2 (pt) |
BR (1) | BR0307358B1 (pt) |
CA (2) | CA2759094C (pt) |
CO (2) | CO5600991A2 (pt) |
DE (1) | DE60327304D1 (pt) |
ES (3) | ES2326164T3 (pt) |
HK (3) | HK1070264A1 (pt) |
MX (1) | MXPA04007373A (pt) |
MY (1) | MY144302A (pt) |
NO (1) | NO20043608L (pt) |
PA (1) | PA8564701A1 (pt) |
PE (1) | PE20030734A1 (pt) |
PL (1) | PL370421A1 (pt) |
RU (1) | RU2309704C2 (pt) |
TW (1) | TWI298631B (pt) |
UY (1) | UY27631A1 (pt) |
WO (1) | WO2003063723A1 (pt) |
ZA (2) | ZA200406201B (pt) |
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- 2003-01-30 AR ARP030100281A patent/AR038241A1/es not_active Application Discontinuation
- 2003-01-30 AT AT03705994T patent/ATE429189T1/de not_active IP Right Cessation
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- 2003-01-30 KR KR10-2004-7011725A patent/KR20040075966A/ko not_active Application Discontinuation
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- 2003-01-30 CN CNB038070375A patent/CN100374091C/zh not_active Expired - Fee Related
- 2003-01-30 RU RU2004126319/14A patent/RU2309704C2/ru not_active IP Right Cessation
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2004
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2008
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