CN1291087A - Toothbrush and method for making a tuft of birstles usable in a toothbrush - Google Patents
Toothbrush and method for making a tuft of birstles usable in a toothbrush Download PDFInfo
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- CN1291087A CN1291087A CN 99803125 CN99803125A CN1291087A CN 1291087 A CN1291087 A CN 1291087A CN 99803125 CN99803125 CN 99803125 CN 99803125 A CN99803125 A CN 99803125A CN 1291087 A CN1291087 A CN 1291087A
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- Prior art keywords
- bristle
- toothbrush
- tuft
- length
- bristle tuft
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/08—Preparing uniform tufts of bristles
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
- A46B3/06—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by welding together bristles made of metal wires or plastic materials
Abstract
A toothbrush (98) includes a handle (100), a head (102) extending from the handle and a tuft (104) of bristles which are joined together at a base end of the bristles and secured to the head at the base end. The tuft has a width and a length. A ratio of the width to the length is about 0.25 or less.
Description
The present invention relates generally to oral health field, particularly toothbrush.The invention still further relates to a kind of manufacturing and be used for the method for the bristle tuft on the toothbrush.
The conventional method of making toothbrush is that " picking up " goes out a branch of bristle in the bristles that cut in advance in a large number, then this bundle bristle is pinned on preformed toothbrush handles/head, and free end of this bundle bristle just can have been prepared against shipping to Toothbrush package through rounding.
A kind of method of more modern improved manufacturing toothbrush is, an end heat fused of the bristle tuft of picking up, make this brush end fusion so that firmly bristle is fixed together.Again many bristle tuft that fuse together are put in the mould of toothbrush handles/head of injection moulding machine, put into mould and other parts of bristle tuft are exposed at outside the mould in this this bristle tuft melted ends.Plastics with fusion inject in the die cavity then, behind plastics solidification, just the melted ends of a few bundle bristles are fixed on the toothbrush of firm shaping.In this method, bristle can be installed to that head toothbrushes is gone forward or rounding later on.
In above-described two kinds of methods of making toothbrushes, be restricted at the variable quantity of two axial dimensions of each bristle tuft, wherein two is axially orthogonal and vertical with the bristle major axis.For example, bristle tuft is circular traditionally, and for those non-circular bristle tuft, bristle tuft typically is not more than along 2 times to 3 times of the length of the size of the bristle tuft of second axle of the major axis of first and bristle (promptly perpendicular to) along the size of first (promptly perpendicular to bristle major axis axle), the size restrictions of bristle tuft has reduced the variation of bristle tuft shape in the toothbrush, and then limited the design of toothbrush, thereby limited the method for the toothbrush of the more advanced cleaning teeth of design.
Another defective of existing manufacturing toothbrush method is that the variation of bristle feature in the bristle tuft only is confined to the length of bristle, other characteristics such as material, color, gray scale, surface features and the cross sectional shape of bristle do not change in the bristle tuft, the consequently outward appearance of bristle tuft and cleaning efficiency, and then the effect of toothbrush correspondingly is restricted.
Another of the method for current toothbrush and manufacturing toothbrush is limited in, and the interior bristle of bristle tuft is at random with respect to the location of another root bristle fully.This is because all bristles were picked out in the same time of same operation a branch of bristle.Owing to can not control in a branch of bristle a bristle and relative position and/or orientation, therefore just limit bristle tuft outward appearance and cleaning capacity thereof with another root bristle or more other bristles in a branch of bristle.
The U.S. Patent No. 4,366,592 of authorizing Bromboz in January 4 nineteen eighty-three discloses a kind of toothbrush and manufacture method thereof.Its method is at first to do a band that has support plate and a bristle, and bristle is arranged on the face of support plate with method parallel to each other.The end of bristle is protruding from the longitudinal edge of band, and this band is processed into reservation shape, then brush end is fixed on a basal plane, and is last, and support plate is removed from bristle.
The present invention is intended to solve above-mentioned one or more problem.Simply be summarized as follows, according to an aspect of the present invention, a kind of toothbrush comprises a toothbrush handles, from brush of the extended tooth of toothbrush handles, and a branch of bristle of combining of cardinal extremity, this bristle tuft is fixed on the head toothbrushes at this cardinal extremity.This bristle tuft has a width and a length, and the ratio of width and length is less than or equal to about 0.25.
Bundle of toothbrush bristles described above has relative width smaller and length ratio, and this point is not open in the prior art.Such bristle tuft can provide the selection of multiple bristle tuft shape to toothbrush design person, and therefore the spread pattern of many kinds of toothbrush bristles just can be arranged.
According to another aspect of the present invention, a kind of toothbrush comprises a toothbrush handles, from the extended head toothbrushes of toothbrush handles, and a branch of bristle that combines at the bristle cardinal extremity and bristle tuft is fixed on the head toothbrushes with this cardinal extremity.Wherein a bristle is different with the characteristic of another root bristle, and its characteristic is to choose from following one group of characteristic, and this group characteristic comprises material, color, gray scale, surface characteristic and cross sectional shape.
Have different materials, color, gray scale, surface characteristic and cross sectional shape if form the bristle of bundle of toothbrush bristles, the effect of the outward appearance of bristle tuft and cleansing power and then toothbrush will be strengthened.
According to a third aspect of the present invention, a kind of toothbrush comprises a toothbrush handles, from the extended head toothbrushes of toothbrush handles, and a branch of bristle that combines at the bristle cardinal extremity and bristle tuft is fixed on the head toothbrushes with this cardinal extremity.Position and/or the orientation of first bristle in bristle tuft is certain with respect to second bristle in the bristle tuft.
By bristle being placed into preposition and/or orientation in the bristle tuft, the various characteristics of bristle comprises that the ability of outward appearance and cleaning tooth just can rely on the characteristic of every bristle to be controlled to trickle relatively degree.
According to a fourth aspect of the present invention, a kind of manufacturing is used in the method for a branch of bristle on the toothbrush, comprises, one group of independent bristle is close to placement each other, and all bristles are parallel in their longest dimension direction basically.This group bristle has width and length, and its width and length are than being less than or equal to 0.25 approximately.This method comprises that also the part with each root bristle is fixed to the part of another root at least and forms bristle tuft.
In conjunction with the accompanying drawings, can understand and understand the present invention these and other aspect, purpose, feature and advantage well by consulting detailed description of preferred embodiment and appended claims.
Fig. 1 shows the perspective view of individual bristle pick device station.
Figure 1A and 1B show the vertical view that picks up wheel, have represented to pick up the various fluting circumference of wheel.
Fig. 2 shows the vertical view that a kind of bristle tuft is made machine, and this machine comprises a pair of bristle pick device station.
Fig. 3 shows among Fig. 2 the part side view along the arrow directions X.
Fig. 4 A-C shows the perspective view of three kinds of bristle tuft.
Fig. 5 A-C shows the side view of three kinds of bristle tuft, and every kind of bristle tuft has different top profiles.
Fig. 6 A-B shows the perspective view of two kinds of bristle tuft, and its bristle ends processes by two kinds of diverse ways.
Fig. 7 shows a kind of annular bristle tuft.
Fig. 8 A-C shows the step of making the circular brush pieces.
Fig. 9 A-D shows the step of making the circular brush pieces and shows the circular brush pieces that is fixed to head toothbrushes.
Figure 10 A-E shows the difformity bristle tuft is fixed to head toothbrushes on the head toothbrushes.
Figure 11 shows the another kind of device of making bristle tuft.
Figure 12 A-B shows the bristle tuft of being made by Figure 11 device.
Fig. 1 represents to be used to make the method and apparatus of bundle of toothbrush bristles.Bristle supply source 10 is stored in 11 li of storage silo.For example, bristle is preferably by nylon or polyester, also can be made by polypropylene that is suitable for making bristle or natural or artificial material.Preferably about 12mm is to 37mm before combined together for the length of bristle, and its diameter is preferably about 0.1mm to 0.25mm.As shown in Figure 1, bristle ends is preferably passed through rounding in advance.All bristles 10 are preferably in aspect unanimities such as material, length, cross sectional shape, color and/or gray scale.Air-leg 22 is pressed to one or more wheels 12 that pick up with bristle 10, and its pressure preferably 9 arrives 18psi.
Shown in Figure 1A and 1B, process notch on the circumference of wheel 12, each notch can hold a bristle 10.The shape of selecting each notch is to grip a kind of bristle tuft of specific type.Although all notches preferably have identical shape on the wheel, the distance between the notch can change so that the distance of picked bristle also can change.The notch shape of wheel 12 is different between two wheels among Figure 1A and the 1B, therefore allows each to take turns the bristle that picks up different model.
Fig. 2 shows a pair of wheel 12 that picks up, and along the rotation of arrow 23 directions, they are driven by a variable speed drive system (not shown) these two wheels with identical constant speed.Preferably about 3 inches of the diameter of two-wheeled 12, and with the about 3 rotating speed rotations of arriving 30rpm.Be transported to first pick up wheel bristle 10 of 12 at aspects such as material, length, cross sectional shape, color and/or gray scales can be transported to the different of second bristle that picks up wheel.When bristle 10 was pressed onto on the wheel 12 by push rod 22, those bristles that are positioned at wheel and bristle biting point 24 were just grabbed the notch of wheel circumference and are rotated with wheel along arrow 23 directions.Wheel 12 contacts below the mid point that just in time is positioned at bristle lengths with bristle.Be used for each and take turns 12 a pair of clamping plate 26 bristle 10 is included in storage silo 11, come off from notch when the bristle supply source leaves with the bristle that prevents that those from being taken turns notch catches.Wheel 12 and clamping plate 26 preferably by hardened steel or carbide alloy manufacturing to resistance to wear.
As mentioned above, the distance between the notch of wheel on 12 can change, this distance can be very little also can be very big.Wheel 12 can be constructed and alignment rotatably like this, and in the place that two-wheeled meshes together, the notch of a wheel is taken turns clearance space between two notches in the face of another, and vice versa.In this case, when wheel 12 rotations, bristle 10 side by side mixes on an individual layer just as deck at place, the wheel crack between the two-wheeled.Because the distance between the notch changes, just can produce the arrangement mode of many bristles by two wheels, for example, each is taken turns can be from side by side, and two are suffered one or the variation of any desired arrangement mode.Further, in the bristle tuft that is processed any bristle with respect to bristle tuft in the position and/or the orientation of another root bristle be certain.
Although it should be noted that only disclosing two wheels 12 is used for two kinds of bristles are fed endless belt 13, other wheel and band also can be used for carrying other bristle to endless belt 13.For example, a pair of other band (not shown) picks up the wheel (not shown) by one or two and just can carry the bristle of another kind or two types to the gap location of taking turns 12.These other bands can be placed on wheel 12 tops, and are protruded below band by these most of length with entrained bristle.Wheel 12 can have spacing between its groove, these spacings are in alignment with each other, these other with on the bristle of any position all be directed between the two-wheeled 12.
A pair of tape guide plate 15 contacts with each side with 13, and band is interlocked herein.Each piece plate 15 can be divided into four part A, B, C and D, each part can be placed on independently shift near or away from the band interlock place the position.By adjusting the position of plate 15 each part, just can in four engagement region between the band, adjust with 13 pressure of biting bristle 10.The each several part of plate 15 is provided with like this, makes the biting pressure in A and D zone higher relatively with respect to the biting pressure of zone C and B, and requiring has the reason of this barometric gradient to be explained with reference to figure 3 below.
Fig. 3 is the part side view along arrow directions X among Fig. 2.Only show among Fig. 3 bristle 10 among Fig. 2, lower whorl 12 and on 13 and several new element.Also show above-described regional A, B, C and D, for fasten bristles 10 and carry its leave the wheel 12, the biting pressure with 13 in regional A is higher relatively.Reduce so that make the molded component 32 (not shown in Fig. 2) can be at the biting pressure of area B band, thereby form a contour shape that becomes the pencil of forms along the major axis movable part of part or all of bristle 10 or whole bristles.With the speed rotation identical with bristle motion speed, these parts also move up and down along arrow 36 directions by the cam mechanism (not shown) parts 32 along arrow 34 directions.Parts 32 these rotations and rectilinear motion move bristle vertically, thereby form the contour shape as Fig. 3.Certainly, other dissimilar molded components also can be used for giving bristle with differently contoured shape.
Resistance-type air-heater 38 comprises a fan 40, fan 40 sucks air-heater with air and makes it by resistance heated parts 42, parts 42 preferably can make air heat arrive more than the fusing point of bristle material, and hot-air fuses together the bristle of this part by managing 44 parts 46 that blow to bristle 10 then.In order to quicken the bristle fusion, hot-air preferably blows on the part 46 from the both sides of band, and the bristle after the fusion forms bristle band 49.The part 46 of bristle 10 also can fuse together with ultrasonic wave or Laser Welding, perhaps utilizes adhesive or resin (artificial and/or natural) that the both sides of part 46 are bonded together.
Then cutting knife 48 with bristle 10 parts of fused portion below 46 from be with 49 the excision.Another kind of form is the bottom (not shown in the drawings this variation) of cutting knife 48 excision bristle before air-heater 38 fusion bristles.Air-heater 38 and cutting knife 48 relative positions will change in this scheme, and cutting knife is placed on the air-heater upstream, and air-heater 38 directly blows to hot-air the end of the bristle that has cut off from the bottom.
Second reciprocating type cutting knife 50 moves back and forth along the direction of arrow 52, periodically cuts the fused portion 46 of bristle, thereby from being with 49 to downcut the cluster bristles.Bristle tuft 54 is fed forward so that further processing along arrow 28 directions by a pair of mip rolls (not shown).Should be noted that air-heater 38, cutting knife 48,50 are also not shown in Fig. 2, this is because they all are positioned at below the plate 15.
Fig. 4 A-C shows bristle tuft 54a-c, and all bristle tuft tops all are smooth, and bristle tuft 54 tops are circle contours among Fig. 3.Bristle has the termination 56 of end rounding as can be seen in Fig. 4 A-C.About bristle tuft 54a among Fig. 4 A, its width is less than or equal to about 0.25 with length than " A "/" B ".In Fig. 4 B, a pair of bristle tuft has fused together and has formed bristle tuft 54b, its width is 2 times of bristle tuft 54a, this to the bristle tuft fusible together, this can finish by following steps, at first bristle tuft is alignd, utilize the part 46 of heating such as hot-air, laser or ultrasonic wave two bristle tuft then and they are fused together, also can both be sticked together with adhesive and/or resin.In Fig. 4 C, bristle tuft 54C is made up of the three beams bristle that lumps together, and middle bristle tuft 58 is than other two outer field bristle tuft height, and this bristle that any three-D profile is described can obtain by the length of control contour shape and bristle band.
Image pattern 4B is the same with 4C, can downcut bristle tuft from bristle band 49 earlier, then two or more bristle tuft is fused together; Also can fuse together two or more bristle bands earlier, and then downcut each bristle tuft from the bristle band.This can finish by two or more bristle bands are combined with predetermined alignment form, need wherein at first to finish that each bristle band is fused in part 46 separately, and then utilize method described above (being ultrasonic wave, adhesive, resin etc.) to fuse together the part 46 of each band.At last each bristle tuft 54 is downcut and formation multilayer bristle tuft from multilayer bristle band.
Fig. 5 A-C shows three kinds of bristle tuft, and each bristle tuft has different top profiles.Bristle tuft 54a described in front, and had disclosed bristle tuft 54 when Fig. 3 is discussed.The top of bristle tuft 54d is the V-arrangement profile.At the amplifier section 60 at the top of some bristle of each bristle tuft, among 60a and the 60d, bristle 10a and 10b can replace spread pattern.Bristle 10a by one pick up the wheel 12 (Fig. 2) feed, and bristle 10b by another pick up the wheel feed.As noted earlier, bristle 10a and bristle 10b can be different at aspects such as material, length, cross sectional shape, color and/or gray scales.Although shown in 10a and the 10b be pattern of rows and columns alternately side by side,, just can form the bristle of arbitrary graphic pattern form by picking up the notch on wheel 12 circumference and the variation of notch spacing.For example, can be per 2 bristle 10a, 1 bristle 10b at interval,
Fig. 6 A and 6B show multilayer bristle tuft 54e and 54f, and the bristle tuft 54c among this and Fig. 4 C is similar.The end 62 in the intermediate layer 64 of bristle tuft 54e is processed to " Xiao Jianzui " form, and this finishes by following steps: (ⅰ) end 62 is heated to the melt temperature near bristle; (ⅱ) clamp end 62 sub-fractions with a bar clamp (not shown); (ⅲ) make end 62 " size is dwindled " along bristle long axis direction pulling bar clamp; (ⅳ) end 62 of cooling bristle; (ⅴ) resection clomp that a fraction of end 62 on clamp.Bristle tuft 54f 66 has one " little hook " in the end among Fig. 6 B.The formation method of this little hook and little sharp mouth are shaped similar, unique step that how has not been both.This step makes bristle ends 62 curve shape shown in Fig. 6 B clamp Rotate 180 degree preceding the carrying out of cooling step (ⅳ) of said method exactly.It is cleaner that Xiao Jianzui and little hook shape can make diastema zone and gum line following (under the gum) clean, and each provides different mouthfeels.
Fig. 7 shows a kind of bristle tuft 68 of annular bristle form.Bristle tuft 68 is to form like this, at first together with second portion 70 heat fuseds of bristle 10, then part 70 is placed on the end of close bristle, near this end and the part 46 end relative (Figure 46) makes fused portion 70 and 46 adjacent from middle bending bristle then, and decline 46 is in the same place with 70 heat fuseds.Annular bristle tuft 68 rigidity are fine and wear-resisting.Also can select further method for processing, the annular section with bristle is heated near its fusing point exactly, flattens between two flat boards then.Two flat boards are used to flatten the annular section (not shown) of bristle.
Fig. 8 A-C will describe the method that how bristle tuft of downcutting from the bristle band is processed into the circular brush pieces.Among Fig. 8 A, individual layer bristle tuft 72 has one " length ", and the bristle height of its left end is " H1 ", and right-hand member bristle height is " H2 " (bristle of the right half of the bristle tuft above part 46 is not shown).Being provided with like this forms a slope profile.In Fig. 8 B, bristle tuft 72 rolls and forms a circular brush pieces.If end " H2 " is in the circular brush pieces outside, and end " H1 " just forms convex bristle tuft 74 in the inboard of circular beam.If end " H1 " in the circular brush pieces outside, and " H2 just forms spill bristle tuft 76 in the inboard of circular brush pieces in the end.If bristle tuft 72 is tack profiles, promptly H1=H2 has just formed tack bristle tuft 78.After bristle tuft 72 rolled, part 46 heats again fused together each several part bristle 46 again, and bristle tuft is locked into circle.Three Long Circle bristle tuft have been shown in Fig. 8 C, and it can be made like this, and before heat fused part 46, first the part as the circular brush pieces of bristle tuft 78 flattens point, then with part 46 heat fuseds together.
Except that Fig. 9 A had pair of lamina bristle tuft 82, Fig. 9 A-C and Fig. 8 A-C were similar.Bristle tuft 82 has one than whisk broom batt 84, is one than long brush hairs layer 86 in its back.Although this two-layer bristle has similar profile, this is not essential.Bristle tuft 88 and 90 has two independently profiles, interts mutually between its profile.
In Fig. 9 D, 3 those bristle tuft of bristle tuft 88 the right install on the head toothbrushes 92 of toothbrush 94, for simplicity, a bristle tuft 88 only have been installed on head toothbrushes 92.In fact toothbrush has many bristle tuft to be packed on the head toothbrushes.Toothbrush 94 can be made by following method, and those skilled in the art understands its principle, and in the patent No. being has description in 5,609,890 the United States Patent (USP), and this patent was granted patent on March 11st, 1997.Bristle tuft 88 and other bristle tuft with similar characteristics are inserted in each hole of metal plunger, the metal plunger is fixed in first half module of injection moulding machine, so that die cavity is stretched in fusion end 46, then the mould closure is made first half module and second half module lump together.The melted ends 46 of bristle tuft just in time is positioned at mold cavity, and the not puddle of bristle tuft is positioned at outside the die cavity.
Polypropylene is injected die cavity form whole toothbrush handles 96 and head toothbrushes 92, polypropylene is cooled to toothbrush can be taken out in mould then.The polypropylene of cooling after-hardening is fixed to the melted ends 46 of bristle tuft on the head toothbrushes 92 of toothbrush 94.Also has a kind of selection below, exactly toothbrush is moved to second injection mo(u)lding station, add one deck rubber for tooth-brush handle 96, promptly thermoplastic elastomer (s) (rubber) is expelled in second mould, treat after the elastomeric material cooling toothbrush that is shaped to be taken out from mould, then toothbrush is packed.
Figure 10 A-E shows the composition of head toothbrushes and the part toothbrush handles that becomes integral body with it, and wherein bristle tuft is fixed on the head toothbrushes.These bristle tuft do not roll as previously discussed, therefore compare with its length " B ", and " A " is very little for its width, and the ratio of width " A " and length " B " is preferably less than or equals about 0.25.Length " B " can be straight length or length of curve (as Figure 10 (E)) or along the distance of this bristle tuft longest dimension direction, this bristle tuft is curved two or more cross sections, each cross section with respect to another angle of section greater than zero.These toothbrushes can adopt above-mentioned method to make.All bristle tuft can have one deck that many layer bristles also can be arranged, and in this case, beam width can be greater than 0.25 with the length ratio.
Figure 10 A be toothbrush an embodiment side view and Figure 10 B is the vertical view of same embodiment.Toothbrush 98 comprises a toothbrush handles 100 and a head toothbrushes 102.In Figure 10 A, bristle tuft 104 is higher bristle tuft and lower alternately arrangement of bristle tuft; Bristle tuft among Figure 10 B all is straight, and except from toothbrush handles 100 that bundle farthest is short, their length is identical.Each intrafascicular bristle preferably is parallel to each other.
Figure 10 C has shown the toothbrush 106 with different bristle styles.At this, 4 in line long brush hairs bundles 108 are parallel to the major axis 109 of head toothbrushes 102.The bristle tuft 110 at two ends is fixed on the two ends of head toothbrushes 102 and makes curve shape.In Figure 10 D, 109 one-tenth one oblique angles of series of identical straight bristle tuft and axis are fixed on the head toothbrushes 102.Figure 10 E has shown that identical crooked bristle tuft 114 is arranged in head toothbrushes 102 transversely.
Figure 11 shows another embodiment of the device that is used to make bristle tuft.A large amount of long filament F01, F02 ... F50 is by a carriage 120.By keeping having between each long filament a default gap, as far as possible toward together but keep long filament not twine, this realizes by process the separated hole that is used for long filament on carriage 120 carriage 120 these long filaments.By for example Plastic Welding device of heating unit 122, heating unit 122 comprises that the one scan laser instrument is used for periodically long filament being fused together to these long filaments then, for example 124 places fusion in the position.Also can select ultrasonic wave or hot-air that bristle is fused together.Drive system 126 comprises 4 nipper wheels, and these nipper wheels are bitten these long filaments and rotation, makes these long filaments by this device.Nipper wheels does not need to contact with all long filaments, because long filament fuses together at this point.Stamping machine utilizes mould 132 that a part of long filament 130 is downcut then, and mould 132 moves reciprocatingly along the direction of arrow 134.The cutting knife (not shown) is cut into single bristle tuft 136 with part 130 then.
Figure 12 A-B shows two bristle tuft, and its forming mode is as follows.Heating unit 122 (Figure 11) rotation makes it to become an oblique angle and fuse these long filaments with the direction of motion (major axis) of long filament.In Figure 11, long filament is fused on perpendicular to the long axis direction of long filament.This causes 142 one-tenth one oblique angles of bristle 140 and fused portion in the bristle tuft 138 (Figure 12 A).Bristle tuft 144 (Figure 12 B) is made like this, and two bristle tuft 138 are put together, and one of them bristle tuft 138 upset earlier fuses together two parts 142 then, and these two bristle tuft add that the bristle tuft of multiple variation just can make a toothbrush.
Claims (45)
1. a toothbrush comprises: a toothbrush handles; A head toothbrushes that stretches out from toothbrush handles; And a branch of bristle, its cardinal extremity at bristle links together, and is fixed on the head toothbrushes by this cardinal extremity, and bristle tuft has a width and a length, and its width is less than or equal to about 0.25 with the length ratio.
2. toothbrush according to claim 1 is characterized in that bristle is parallel to each other basically.
3. toothbrush according to claim 1 is characterized in that bristle tuft has only the width of one deck bristle.
4. toothbrush according to claim 1 is characterized in that, not only one deck bristle is wide for bristle tuft.
5. toothbrush according to claim 1 is characterized in that, bristle is fixed together by following means at its cardinal extremity place, i.e. (a) heat fusing; (b) adhesive; Reach (c) artificial and/or natural resin.
6. toothbrush according to claim 1 is characterized in that wherein the characteristic of a bristle is different from the characteristic of another root bristle, and these characteristics comprise length, material, color, gray scale, surface features and cross sectional shape.
7. a toothbrush comprises: a toothbrush handles; A head toothbrushes that stretches out from toothbrush handles; And a branch of bristle, its cardinal extremity at bristle links together, and is fixed on the head toothbrushes by this cardinal extremity, and wherein the characteristic of a bristle is different from the characteristic of another root bristle, and these characteristics comprise material, color, gray scale, surface features and cross sectional shape.
8. toothbrush according to claim 7 is characterized in that, bristle tuft has a width and a length, and the ratio of width and length is less than or equal to 0.25 approximately.
9. toothbrush according to claim 7 is characterized in that bristle is parallel to each other basically.
10. toothbrush according to claim 7 is characterized in that bristle tuft has only the width of one deck bristle.
11. toothbrush according to claim 7 is characterized in that, not only one deck bristle is wide for bristle tuft.
12. toothbrush according to claim 7 is characterized in that, bristle tuft is fixed together by one of following means at the one end, and these methods are (a) heat fusings; (b) adhesive; Reach (c) artificial and/or natural resin.
13. a toothbrush comprises: a toothbrush handles; A head toothbrushes that stretches out from toothbrush handles; And a branch of bristle, its cardinal extremity at bristle links together, and is fixed on the head toothbrushes at this cardinal extremity, first bristle in the bristle tuft with respect to second bristle on preposition and/or orientation.
14. each the root bristle in the toothbrush according to claim 13, bristle tuft is in precalculated position and/or orientation with respect to another root bristle.
15. toothbrush according to claim 13 is characterized in that, bristle tuft has a width and a length, and the ratio of width and length is less than or equal to 0.25 approximately.
16. toothbrush according to claim 13 is characterized in that, wherein the characteristic of a bristle is different from the characteristic of another root bristle, and these characteristics comprise length, material, color, gray scale, surface features and cross sectional shape.
17. toothbrush according to claim 13 is characterized in that, in order to one of following method bristle is linked together at the cardinal extremity place, these methods are (a) heat fusings; (b) adhesive; Reach (c) artificial and/or natural resin.
18. a manufacturing is used for the method for the bristle tuft on the toothbrush, comprises following steps:
One of one group of bristle suffers an arrangement, so that bristle is parallel to each other in their longest dimension direction basically,
The part that the part of each root bristle is fixed in another root at least to be forming the bristle band again,
Last one of the standing part between the bristle that cuts off at least downcuts a branch of bristle from the bristle band.
19. method according to claim 18 is characterized in that, fixing step is a heating bristle part, makes it enough soft so that fuse together.
20. method according to claim 18 also comprises a step,
Exactly the part of end one by one of bristle is at least cut away with the length that changes a bristle or a part of cutting away more bristles to change its length.
21. method according to claim 18 also comprises following a few step,
Be exactly an end that heats every bristle earlier,
Elongate its heated brush end from bristle then and make it undergauge,
Cool off this end at last below melting temperature.
22. method according to claim 21 also comprises a step,
Be exactly between elongating and cooling off, heated brush end bending.
23. method according to claim 18, also comprise following a few step, another part of each bristle and at least another part of other bristle be fixed together, the bristle between a part and another part is folded up, make a part and another part lean on very closely
At last a part is fixed in another part.
24. method according to claim 23 also comprises a step,
The heating of the part of the bristle of folding up, then the part of heating is forced together.
25. method according to claim 18 is characterized in that, places step and may further comprise the steps: a bristle supply source is provided, sequentially picks up individual bristle from described bristle supply source then.
26. method according to claim 18 is characterized in that, places step and may further comprise the steps, and first bristle is placed on precalculated position with respect to second bristle.
27. method according to claim 18 is characterized in that, places step and by predetermined style individual bristle is placed in groups effectively.
28. method according to claim 18 is characterized in that, after fixing step, first bristle changes with respect to the position and/or the orientation of second bristle, and the shape of bristle tuft has also just changed.
29. method according to claim 28 is characterized in that, after the shape that changes bristle tuft, utilizes heat fusing that bristle one end is fixed together.
30. a method that is used to form the processing bristle of bristle tuft comprises following a few step, and a bristle supply source is provided, and sequentially shifts out individual bristle from the bristle supply source then.
31. method according to claim 30 also comprises a step, the bristle alignment that is shifted out is made it to be parallel to each other basically on individual layer.
32. method according to claim 31 also comprises a step, moves one or more along one or more major axis that is moved out of the bristle that comes and is moved out of next bristle, forms a contour shape.
33. method according to claim 32 also comprises a step, excises the part of bristle one end that each velamen is shifted out.
34. method according to claim 31 also comprises a step, the part of bristle one end that each velamen is shifted out is fixed in the part of bristle one end that another velamen at least is shifted out to form the bristle band.
35. method according to claim 34 also comprises a step, the part of the bristle that is fixed together at least of excision and make bristle tuft break away from the bristle band to form bristle tuft.
36. method according to claim 35 also comprises a step, and two or more bristle tuft of downcutting from the bristle band are linked together.
37. method according to claim 31 also comprises a step, generates one or more separate and independently other with this band bristle bands, and these one or more other bristle bands and this bristle band are linked together.
38. according to the described method of claim 37, also comprise a step, a part that puts together on bristle band is together made bristle tuft from the bristle band cutting-out that lumps together.
39. method according to claim 30, also comprise a step, one or more other bristle supply sources are provided, between these one or more other bristle supply sources and all different at aspects such as length, material, color, gray scale, surface features and/or cross sectional shapes with first kind of bristle supply source, wherein alignment step will combine first kind of bristle supply source and these one or more other bristles on an individual layer effectively.
40., it is characterized in that alignment step will combine the first bristle supply source and these one or more other bristles with predetermined order effectively according to the described method of claim 39.
41. method according to claim 18 is characterized in that, bristle tuft has a width and a length, and the ratio of width and length is less than or equal to 0.25 approximately.
42. a manufacturing is used for the method for the bristle tuft on the toothbrush, comprises following a few step:
(ⅰ) supply with a large amount of long filaments;
(ⅱ) long filament is placed like this, adjacent another threads at least of each threads is arranged, and made it be arranged essentially parallel to another threads;
(ⅲ) the part of each threads and at least the part of another threads be fixed together;
(ⅳ) downcut segment length's silk from long filament, this segment length's silk comprises the part that long filament is fixed together;
(ⅴ) one or the long filament that is fixed together of many parts the long filament section is separated into one or more bristle tuft.
43. according to the described method of claim 42, also comprise a step, repeating step (ⅲ)-(ⅴ) is repeatedly made a large amount of bristle tuft.
44., it is characterized in that fixing step is that the part of long filament is fixed along the direction vertical with the major axis of long filament according to the described method of claim 42.
45., it is characterized in that fixing step is to have the direction at an oblique angle to fix along the major axis with long filament according to the described method of claim 42 to the part of long filament.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US2698298A | 1998-02-20 | 1998-02-20 | |
| US09/026,982 | 1998-02-20 | ||
| US24300599A | 1999-02-02 | 1999-02-02 | |
| US09/243,005 | 1999-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1291087A true CN1291087A (en) | 2001-04-11 |
Family
ID=26701892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99803125 Pending CN1291087A (en) | 1998-02-20 | 1999-02-12 | Toothbrush and method for making a tuft of birstles usable in a toothbrush |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1056368A2 (en) |
| CN (1) | CN1291087A (en) |
| AR (1) | AR014636A1 (en) |
| AU (1) | AU2507899A (en) |
| WO (1) | WO1999042019A2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6096151A (en) * | 1998-06-05 | 2000-08-01 | E. I. Du Pont De Nemours And Company | Method and apparatus for making articles having bristles |
| US6260229B1 (en) * | 1998-06-05 | 2001-07-17 | E. I. Du Pont De Nemours And Company | Bristle sub-assemblies and method of making same |
| US6351868B1 (en) | 1998-06-05 | 2002-03-05 | E.I. Dupont De Nemours & Company | Bristle sub-assemblies having parallel pairs of bristles; and methods |
| US6543083B1 (en) | 1998-06-05 | 2003-04-08 | E. I. Du Pont De Nemours & Co. | Bristles having varying stiffness |
| US6269514B1 (en) | 1998-06-05 | 2001-08-07 | Du Pont | Monofilament bristle assemblies and methods of making brushes using same |
| WO2001012013A1 (en) * | 1999-08-17 | 2001-02-22 | Gillette Canada Company | Toothbrush and method for making a tuft of bristles usable in a toothbrush |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4366592A (en) | 1980-08-06 | 1983-01-04 | Bromboz Jonathan J | Brushes and method of making same |
| DE3484093D1 (en) * | 1983-11-16 | 1991-03-14 | Philips Corp | METHOD FOR THE PRODUCTION OF BRUSHES WITH SELF-FASTENING OF THE BRUSHES AND BRUSHES PRODUCED BY THIS METHOD. |
| DE3422623A1 (en) * | 1984-06-19 | 1985-12-19 | Coronet - Werke Heinrich Schlerf Gmbh, 6948 Wald-Michelbach | TOOTHBRUSH |
| DE3624343A1 (en) * | 1985-07-18 | 1988-05-11 | Eugen Gutmann Gmbh & Co Kg | Method for producing a fibre strip and device for carrying out the method |
| DE3823203A1 (en) * | 1988-07-08 | 1990-01-11 | Sanadent Ag | METHOD FOR ATTACHING AT LEAST ONE FLEXIBLE, LONG-EXTENDED ELEMENT, ARRANGEMENT WITH SUCH AN ELEMENT AND BRUSH |
| DE9016467U1 (en) * | 1990-04-27 | 1991-02-21 | Rueb, Fritz, 7869 Schoenau, De | |
| GB2288564B (en) | 1994-04-19 | 1998-09-23 | Boucherie Nv G B | A molding machine for injection molding of tooth brushes |
-
1999
- 1999-02-12 CN CN 99803125 patent/CN1291087A/en active Pending
- 1999-02-12 EP EP99904665A patent/EP1056368A2/en not_active Withdrawn
- 1999-02-12 AU AU25078/99A patent/AU2507899A/en not_active Abandoned
- 1999-02-12 WO PCT/CA1999/000133 patent/WO1999042019A2/en not_active Application Discontinuation
- 1999-02-23 AR ARP990100713 patent/AR014636A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AR014636A1 (en) | 2001-03-28 |
| WO1999042019A3 (en) | 1999-12-09 |
| AU2507899A (en) | 1999-09-06 |
| WO1999042019A2 (en) | 1999-08-26 |
| EP1056368A2 (en) | 2000-12-06 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |