CN1150748A - Resiliently flexible bristle bearing head toothbrush - Google Patents

Resiliently flexible bristle bearing head toothbrush Download PDF

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Publication number
CN1150748A
CN1150748A CN95193601A CN95193601A CN1150748A CN 1150748 A CN1150748 A CN 1150748A CN 95193601 A CN95193601 A CN 95193601A CN 95193601 A CN95193601 A CN 95193601A CN 1150748 A CN1150748 A CN 1150748A
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CN
China
Prior art keywords
toothbrush
head toothbrushes
bristle
brush holder
head
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.)
Granted
Application number
CN95193601A
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Chinese (zh)
Other versions
CN1108125C (en
Inventor
马丽亚·凡·格尔德
基施蒂·J·摩根
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Procter and Gamble Co
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Procter and Gamble Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Procter and Gamble Co filed Critical Procter and Gamble Co
Publication of CN1150748A publication Critical patent/CN1150748A/en
Application granted granted Critical
Publication of CN1108125C publication Critical patent/CN1108125C/en
Anticipated expiration legal-status Critical
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    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/026Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups where the surface of the brush body or carrier is not in one plane, e.g. not flat
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B7/00Bristle carriers arranged in the brush body
    • A46B7/06Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B5/00Brush bodies; Handles integral with brushware
    • A46B5/002Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0025Brushes with elastically deformable heads that change shape during use
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04Arranged like in or for toothbrushes
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B2200/00Brushes characterized by their functions, uses or applications
    • A46B2200/10For human or animal care
    • A46B2200/1066Toothbrush for cleaning the teeth or dentures

Abstract

A toothbrush, having a handle and a resiliently flexible bristle-bearing head wherein, when the toothbrush is in its normal stress-free configuration, the free ends of bristles lying along a longitudinal and/or transverse axis of the brush form a generally concave profile adapted to suit the buccal surface of the teeth. The toothbrush head can flexibly conform to a convex profile to suit the labial surface of the teeth or to avoid damage to the gums.

Description

Toothbrush with resiliently flexible bristle support head
Invention field
The present invention relates to toothbrush, relate to particularly have the bristle surface (that is, by the formed surface of the free end of bristle) that roughly is spill flexible head toothbrushes to meet the toothbrush of human teeth curvature.
Background of invention
The profile of human teeth require to be used for to scrub tooth towards toothbrush cheek or outer surface, its desirable bristle profile is a spill, its desirable bristle profile of toothbrush of being used for scrubbing tongue or tooth inner surface is a convex.Most toothbrush all has all-in-one-piece head toothbrushes, and head toothbrushes is all similar with brush holder thickness, thereby quite hard and curvature or shape invariance.Yet, also have some toothbrushes also to have a device and be used for making the relative shank of head flexible, as EP-A-371, in 293 illustrated like that.Even like this, the effect of this toothbrush neither be very desirable.It is several multi-form to also have some other toothbrush to be adjusted to, but shape is still immutable.Adjustable toothbrush is difficult to usually use and is unreliable.
It is to press tooth to sustain damage with near the gingival soft tissue making when obtaining good cleaning effect very consumingly or uncomfortable at toothbrush that existing toothbrush also has a defective.This defective can solve by the shape of change toothbrush or by hardness or the length that changes bristle to a certain extent, yet by the way, the toothbrush of global shape always can not be applicable to all situations.
Authorize U.S. Pat-A-4 of Cheng, 712,267 have disclosed a kind of disposable toothbrush, the elongated handle of being made by indeformable material that comprises a S shape, this brush holder have crooked end, that flexible and of bristle is housed at relative sweep to be used for being installed in device on the handle so that lengthwise movement on the length direction at handle with flexible.The sweep of brush holder curves spill or convex with flexible together with bristle, and it is corresponding to the curved shape of brush holder.
At the European patent EP-A-454 that transfers Warner-Lambert company, disclosed a kind of toothbrush of regulating camber in 625, its head is an annular.Cam or slide mechanism can change the curvature of the head toothbrushes between spill and the convex.In another embodiment, head is the brush holder part of the whole, and this brush holder is a compressible closed-loop shape, and when brush holder was in its non-compressed state, bristle surface was spill, and it is convex when brush holder is compressed.
Belonging to Lingner﹠amp; European patent EP-the A-577 of Fischer Co., Ltd, disclosed in 656 and a kind ofly had brush holder and be the toothbrush of a bristle support head at the one end, wherein this head toothbrushes is two or more deflections and flexibly is connected to each other and/or is connected to fragment on the brush holder, the one or more bristle supports that become in the fragment.In one embodiment, but it be utilize on the apparent surface of head toothbrushes laterally, also groove and reach this purpose longitudinally.Have during use under the situation of pressure effect and can adopt convex.In another embodiment, brush holder is connected with in the framework of head toothbrushes with stretching into its inner elastomeric.When pressure affacted the center of head toothbrushes, it can adopt spill.
Though it is certain flexible that above-mentioned toothbrush can make head toothbrushes have, but there be not a kind of being entirely satisfactory in them, specifically, it or can not provide spill and convex two kinds of profiles in one embodiment simultaneously, or require the user that the technology of skilled especially operation must be arranged.
Therefore, purpose of the present invention is to provide a kind of toothbrush, and it has deflection ground and adapts to the convex of tooth or the head toothbrushes of concave surface, and good cleaning effect can be provided and be easy to manufacturing and use.
Further object of the present invention is to provide a kind of toothbrush, cleaning teeth effectively under the situation minimum to the damage of adjacent gingiva tissue.Summary of the invention
A kind of toothbrush is provided according to an aspect of the present invention, it has the bristle support head of a brush holder and a resiliently flexible, when toothbrush is in its normal not subjected to pressure shape, is in the longitudinal axis of toothbrush and/or the free end of the bristle on the transverse axis and roughly forms recessed profile.
Deflection head toothbrushes of the present invention can be crooked so that itself can compensate the differently contoured of user's tooth when brushing teeth.Particularly, the deflection head toothbrushes of toothbrush of the present invention is when its not subjected to pressure shape, have one to adapt to the bristle profile of tooth towards the surface of cheek, and at least can be in preferred embodiment by crooked continuously, from the plan-position to the convex with adapt to tooth towards the surface of tongue, thereby generally speaking be better than existing hardhead toothbrush.This head toothbrushes is 1 usefulness by this way, and promptly bristle effluxes to bend from the center with restriction affact pressure on the gum when head toothbrushes is pressed on the tooth.Head toothbrushes is flexible in all cases, and when active force was removed, head toothbrushes can revert to its original shape like this.The detailed description of invention
Toothbrush of the present invention has elongated brush holder, and as an essential member, this brush holder also has the bristle support head of a resiliently flexible.At least the first of head toothbrushes forms the whole extension of brush holder.At least this part head toothbrushes zone is enough thin, and head toothbrushes is normal crooked under the effect of normal brushing pressure like this.Be preferably, this head toothbrushes also comprises the second portion that one or more elastomeric materials that are formed on or are centered around in its first are made, and whole like this head toothbrushes is traditional general plane shape, but compares also deformable with traditional toothbrush.Said herein deflection means that the other end is maintained fixed when normal brushing pressure (2-4 newton) affacts on the end of head toothbrushes, and that end of power effect is then with at least 1 ° of bending (warpage angle).In preferred embodiment, the warpage angle is at least 5 °, and more preferably the warpage angle has 10 ° at least, and can reach 45 ° or bigger.In preferred embodiment, the warpage angle is that head toothbrushes can bend to convex.Head toothbrushes at least the one side on bristle is housed.
Toothbrush handles of the present invention and make used material as the head toothbrushes of a brush holder part that part of with traditional toothbrush and make, particularly plastic material.The plastic material that is suitable for for example comprises polyamide and polypropylene.A kind of suitable polypropylene material is " polypropylene PM 1600 " (being sold by Shell), and modulus of elasticity (ISO178) is that 1500Mpa, Shore hardness (ISO868) are 75A.Brush holder itself generally be rigidity and can be traditionally shaped toothbrush.Preferably, brush holder can comprise a neck more easily deformable than the other parts of brush holder, and as well-known in the art, it was enough hard when masterpiece was used on the head toothbrushes when needing only use, but when brushing teeth, head toothbrushes can also be with above-mentioned mode deflection to aforesaid degree.
With regard to the preferable aspect of the present invention, this head toothbrushes has one or more bristle support faces and at least one bristle support face roughly to be rendered as spill when toothbrush is in normal not subjected to pressure state.Can be at two transverse axis of head toothbrushes and the longitudinal axis or wherein is rendered as spill on arbitrary in the head toothbrushes surface.The radius of curvature that presents the surface of spill along the longitudinal axis can be along the head toothbrushes length variations.Radius of curvature is preferably from 10-500mm, more preferably is from 15-250mm, and preferred is from 25-150mm.
In one embodiment, the first of head toothbrushes comprises one or more extensions, and they and brush holder are integral, and its thickness can obtain required flexibility, the structural integrity of while maintenance head toothbrushes under desired user mode.The extension is generally thin than brush holder basically.Preferably, such extension is only arranged.Head toothbrushes can change thickness along its length and control strained profile with the bending force that is added when head toothbrushes during warpage.In this embodiment, that the head toothbrushes extension is preferably is at least local, preferably entirely be surrounded by elastomeric material, and described material is also filled out in any gap between a plurality of extensions.The extension can have some surperficial ribs or member adheres to elastomer on it with auxiliary.
In another embodiment, head toothbrushes has a pair of opposite face, and bristle is installed on the described face, and on this face and/or the groove that has one or more linears or non-linear on the opposite.These grooves form thin hinge, and they make the head toothbrushes deflection, and the head portion between the groove preferably has similar thickness with head toothbrushes traditional, deflection.
These grooves can be roughly become horizontal or parallel with the brush holder longitudinal axis, and can follow at shaped form or zigzag passage.Particularly, these grooves can be along the head toothbrushes extending longitudinally so that efflux the bristle that bristle longitudinally is bent away from the inside.Preferably can also or add transverse groove in addition by the transverse groove replacement, head toothbrushes can be along longitudinal axis bending like this.
The width of these grooves and the degree of depth can change, and the distance between groove and the groove also can change.In the case, head toothbrushes can change along the flexibility of its length and/or width.Preferably only be that transverse groove can change in this mode.
Can be integrally in the preferably all groove of one or more grooves or filling elastic material partly.In the case, the flexible and/or elasticity of head toothbrushes can change and can reduce or avoid fully because toothpaste incrustation and pollution groove.The color of the elastomeric material of inserting can be identical with the material of head toothbrushes, perhaps can be different, and to obtain the appearance of distinguished strip or other pattern.
These grooves generally can be straight or have curved channel or zigzag passage.The groove of non-linear helps the compression stress of the elastomeric material of compensation filling slot when head toothbrushes is crooked.
Here suitable elastic materials is a thermoplastic elastomer, and its Shore hardness is 30-80, as Santoprene and Themoflex.A kind of particularly suitable elastomer is " PTS Thermoflex 75 " (being sold by German PlasticTechnologie Service), and modulus of elasticity (ISO178) is 100Mpa, and Shore hardness (ISO868) is 80A.These elastomers can preferentially mix so that they are easier to compression with a plasticizer that is fit to or blowing agent.
Bristle can be made of any in the art existing material.The material that is fit to is polyester and nylon here, as Dupon Nylon 612.Bristle preferably is a circular cross-section, and can be the cross section of other shape, as rectangle, hexagon and trilobal, but is not limited only to these shapes.And the diameter of bristle and length can change in the Commonly Used Size scope that those of ordinary skill is known in the art, as long as when toothbrush is in the not subjected to pressure state, can also meets bristle surface and roughly be this general purpose of spill and get final product.Bristle generally makes up cluster as traditional form ground and can install on the head toothbrushes by kinds of processes.Here preferable technology is nail nail and fusion.Bristle can insert in the one or both in head toothbrushes extension and the elastomeric material.Cutting bristle and making it change garden, end to adopt any in the art known method to carry out.
During use, employing is made identical mode with the conventional brush agomphiasis and is used toothbrush cleaning teeth of the present invention, preferably, and the mode operate toothbrush that can adopt the sanitarian of tooth section to recommend.Toothbrush of the present invention also can be used in electric toothbrush or the children's toothbrush.
The summary of accompanying drawing
Illustrate the present invention below in conjunction with accompanying drawing, wherein:
Fig. 1 is the partial side view of first embodiment of the invention, and shown toothbrush head has transverse groove.Though head toothbrushes is flat under its not subjected to pressure state, bristle is cut into different length, and bristle surface is spill in the vertical like this.
Fig. 2 is the similar view of second embodiment of the invention, and the first of the head toothbrushes that illustrates is made of the single hop extension that forms one with brush holder, also have elastomer round.This head toothbrushes is prefabricated shaping, is rendered as spill naturally under its not subjected to pressure state like this.
Fig. 3 is the partial side view of third embodiment of the invention, show a kind of open flume type head toothbrushes, its surface is spill at its not subjected to pressure state, how head toothbrushes also be shown be can from spill curve convex with cooperate tooth towards the surface of cheek and lip.(illustrating) with plan view.
Fig. 4 is the plane of the head toothbrushes of four embodiment of the invention, comprises three thin vertical fragments that surrounded by elastomer.Head toothbrushes can be around the longitudinal axis and transverse axis bending.
Fig. 5 is the view in transverse section along Fig. 4 center line AA '.Bristle cuts into its surface and is rendered as spill naturally along transverse axis.
Fig. 6 is the plane of fifth embodiment of the invention, and wherein head toothbrushes has horizontal and vertical groove.All be filled with elastomer in these grooves.
Fig. 7 is the cross-sectional view of the head toothbrushes of sixth embodiment of the invention, and two cannelures are arranged on each face.Head toothbrushes is prefabricated, and its surface is rendered as spill naturally on X direction like this.All be filled with elastomer in the groove.
How Fig. 8 shows vertically effluxing of Fig. 7 dens in dente brush is owing to bend gum under the effect of power when brushing teeth.
Fig. 9 and 10 is planes of another embodiment of head toothbrushes of the present invention, has herringbone and corrugatedly laterally is filled with elastomeric groove.
Figure 11 is the partial plan layout of another embodiment of the present invention, along center line transverse groove is arranged in its head toothbrushes, and groove has accounted for the entire depth of head toothbrushes, has formed two rows like this and has been close to parallel hinge.
Figure 12 is the partial side view of another embodiment of the present invention, shows the side of the head toothbrushes of a groove with different depth, near the toothbrush stem place bigger flexibility is being arranged.
Referring to Fig. 1, a head toothbrushes (1) is integrally formed in an end of brush holder (2).This head toothbrushes (1) has two substantially parallel surfaces, and what install on end face is the bristle that is distributed into many bunches (3).Above and below have the transverse groove (4) of many almost parallels, and stay next thin flexibility head hinge (5).It is spill when toothbrush is in original not subjected to pressure state that bristle cuts into its surface (6).
In Fig. 2, the first of head toothbrushes is made of the individual layer attenuation extension (7) of brush holder (2).This extension by an elastomer (8) round, the thickness and the current toothbrushes of whole like this brush are similar.Head toothbrushes is prefabricated into the spill of a nature, and enough flexibilities are arranged, so the flexible one-tenth convex of this brush under the general power effect when brushing teeth.The length approximately equal of brushing cluster in this example (3), and fuse into one with elastomeric material.
In Fig. 3, head toothbrushes is prefabricated into the surface towards cheek that a natural spill (9) can ideally cooperate cleaning teeth (10).Transverse groove (4) makes head toothbrushes have flexibility, like this under normal brushing pressure, and the convex (11) on the ligulate surface (12) that head toothbrushes is curved backward be suitable for tooth.Groove also is filled with elastomer in addition, preferably with head toothbrushes material materials of different colors to form a kind of distinguished outward appearance.
In Figure 4 and 5, head toothbrushes (1) comprises a plurality of extensions (13) of brush holder, and by elastomer (8) round, the global shape of head toothbrushes still is a traditional design like this, but is deflection on the vertical and horizontal both direction.Shown brushing cluster (3) fuses together and is cut into bristle surface (6) with elastomer and roughly is spill.
In Fig. 6, bristle head (1) has transverse groove (4) and cannelure (14).All be filled with elastomer in these grooves.Being drilled with hole (15) in the surface of the head toothbrushes of the normal thickness location between groove (16) and groove (16) is used for cooperating by traditional with the fixing brushing cluster fixed of nail of picture.
In Fig. 7 and 8, the prefabricated shaping of head toothbrushes (1) is rendered as spill naturally along transverse axis like this.The longitudinal axis (14) is given flexibility the upper and lower surface of head toothbrushes.In the case, efflux bristle (17) and when brushing teeth (19), bend, thereby avoid damaging gum from gum (18).
Fig. 9 and 10 shows has the head toothbrushes that is filled with elastomeric groove non-linear, horizontal.These grooves all are herringbone (20) or waveform (21).In both cases, these grooves all make toothbrush have distinguished outward appearance, and help the shrinkage stress in the elastomeric material in the compensating tank when toothbrush is crooked.Also show the back side of head toothbrushes among the figure, when head toothbrushes during towards convex bending, it is compressed.In Figure 11, head toothbrushes has the horizontal elastomeric groove (4) that is filled with.For clarity sake not shown elastomer.Just in time pass head toothbrushes (22) around toothbrush BB ' center axial trough, and on each bar limit of head toothbrushes, stay a row hinge chain (5).Brushing cluster (3) be with traditional as fixing nail mode be fixed to head toothbrushes than thickness portion.
In Figure 12, the degree of depth of shown groove (4) is increasing on the direction of brush holder (2), and the darkest groove is the most close from nearest that end of head toothbrushes of brush holder.This makes the head portion of the most close brush holder (2) rely on thin hinge is arranged and is easier to deflection than that end of head toothbrushes away from brush holder.These grooves all are filled with elastomer.

Claims (10)

1. toothbrush has the bristle support head of brush holder and resiliently flexible, and when described toothbrush was in its normal not subjected to pressure shape, the bristle free end that is on the toothbrush longitudinal axis and/or the transverse axis constituted roughly recessed profile.
2. as the described toothbrush of claim l, it is characterized in that, described head toothbrushes has one or more bristle support faces, and when described toothbrush was in its normal not subjected to pressure shape, one side bristle support face constituted roughly recessed profile along a longitudinal axis and/or transverse axis at least.
3. as each described toothbrush in the claim 1 to 2, it is characterized in that described head toothbrushes comprises one or more and described brush holder all-in-one-piece extension, described extension is thinner than described brush holder basically.
4. toothbrush as claimed in claim 3 is characterized in that, an extension is only arranged.
5. as claim 3 or 4 described toothbrushes, it is characterized in that described extension is whole or surrounded by elastomer partly.
6. as the described toothbrush of claim 1 to 2, it is characterized in that described head toothbrushes has a pair of opposite, bristle is installed on wherein the one side, and the groove of one or more non-linear or non-linear is arranged in this face and/or the opposite.
7. toothbrush as claimed in claim 6 is characterized in that, described groove all has roughly shaped form or zigzag passage.
8. as claim 6 or 7 described toothbrushes, it is characterized in that described one or more grooves are substantially transverse to the longitudinal axis of described brush holder.
9. as the described toothbrush of claim 6 to 8, it is characterized in that described one or more grooves are roughly parallel to the longitudinal axis of described brush holder.
10. as the described toothbrush of claim 6 to 9, it is characterized in that described one or more grooves are whole or be filled with elastomeric material partly.
CN95193601A 1994-07-13 1995-07-12 Resiliently flexible bristle bearing head toothbrush Expired - Lifetime CN1108125C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9414140.5 1994-07-13
GB9414140A GB9414140D0 (en) 1994-07-13 1994-07-13 Toothbrush

Publications (2)

Publication Number Publication Date
CN1150748A true CN1150748A (en) 1997-05-28
CN1108125C CN1108125C (en) 2003-05-14

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EP (2) EP0769920B1 (en)
JP (1) JPH10502846A (en)
KR (1) KR100253963B1 (en)
CN (1) CN1108125C (en)
AT (1) ATE249765T1 (en)
AU (1) AU706139B2 (en)
BR (1) BR9508399A (en)
CA (1) CA2194054C (en)
DE (1) DE69531786T2 (en)
ES (1) ES2202367T3 (en)
GB (1) GB9414140D0 (en)
HU (1) HU218758B (en)
IL (1) IL114577A0 (en)
MX (1) MX9700341A (en)
PE (1) PE39296A1 (en)
PL (1) PL178909B1 (en)
RU (1) RU2158101C2 (en)
TR (1) TR199500852A2 (en)
TW (1) TW279795B (en)
WO (1) WO1996002165A1 (en)
ZA (1) ZA955833B (en)

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AU706139B2 (en) 1999-06-10
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WO1996002165A1 (en) 1996-02-01
IL114577A0 (en) 1995-11-27
BR9508399A (en) 1998-05-26
PL178909B1 (en) 2000-06-30
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ZA955833B (en) 1996-02-21
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HU218758B (en) 2000-11-28
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CA2194054A1 (en) 1996-02-01
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ATE249765T1 (en) 2003-10-15
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DE69531786T2 (en) 2004-07-15
ES2202367T3 (en) 2004-04-01

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