WO2004093718A1 - Bürstenkopf für eine elektrozahnbürste - Google Patents
Bürstenkopf für eine elektrozahnbürste Download PDFInfo
- Publication number
- WO2004093718A1 WO2004093718A1 PCT/CH2003/000263 CH0300263W WO2004093718A1 WO 2004093718 A1 WO2004093718 A1 WO 2004093718A1 CH 0300263 W CH0300263 W CH 0300263W WO 2004093718 A1 WO2004093718 A1 WO 2004093718A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- brush head
- max
- bristles
- bristle carrier
- filaments
- Prior art date
Links
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
- A61C17/222—Brush body details, e.g. the shape thereof or connection to handle
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B13/00—Brushes with driven brush bodies or carriers
- A46B13/02—Brushes with driven brush bodies or carriers power-driven carriers
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B13/00—Brushes with driven brush bodies or carriers
- A46B13/02—Brushes with driven brush bodies or carriers power-driven carriers
- A46B13/023—Brushes with driven brush bodies or carriers power-driven carriers with means for inducing vibration to the bristles
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B15/00—Other brushes; Brushes with additional arrangements
- A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B15/00—Other brushes; Brushes with additional arrangements
- A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
- A46B15/0016—Arrangements for enhancing monitoring or controlling the brushing process with enhancing means
- A46B15/0032—Arrangements for enhancing monitoring or controlling the brushing process with enhancing means with protrusion for polishing teeth
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B7/00—Bristle carriers arranged in the brush body
- A46B7/06—Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
- A46B9/025—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups the bristles or the tufts being arranged in an angled position relative to each other
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
- A46B9/026—Position 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
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
- A46B9/028—Bristle profile, the end of the bristle defining a surface other than a single plane or deviating from a simple geometric form, e.g. cylinder, sphere or cone
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
- A46B9/04—Arranged like in or for toothbrushes
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
- A46B9/04—Arranged like in or for toothbrushes
- A46B9/045—Arranged like in or for toothbrushes specially adapted for cleaning a plurality of tooth surfaces simultaneously
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/06—Arrangement of mixed bristles or tufts of bristles, e.g. wire, fibre, rubber
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/02—Bristles details
- A46D1/0276—Bristles having pointed ends
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46D—MANUFACTURE OF BRUSHES
- A46D1/00—Bristles; Selection of materials for bristles
- A46D1/02—Bristles details
- A46D1/0284—Bristles having rounded ends
-
- 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
-
- 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
- A61C17/3418—Rotation around 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
- A61C17/3481—Vibrating brush body, e.g. by using eccentric weights
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/10—For human or animal care
- A46B2200/1066—Toothbrush for cleaning the teeth or dentures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S15/00—Brushing, scrubbing, and general cleaning
- Y10S15/05—Varied length bristle
Definitions
- the invention relates to a brush head for an electric toothbrush, an electric toothbrush having such a brush head, and to a method for producing such a brush head having the features of claims 1, 15 and 16, respectively.
- Electric toothbrushes usually have a handle, in which a motor is housed, and a usually replaceable brush head.
- a brush head with a rotationally drivable bristle carrier is known for example from DE-U 295 20 230.
- An electric toothbrush, whose brush head is vibrated, is known from WO 01/28452.
- CH 421 049 also known as electric toothbrushes whose brush heads perform a pivoting movement about their longitudinal axis in the manner of a rocker.
- Known electric toothbrushes have a brush head provided with bundles of conventional bristles. These are rounded to avoid injuries at their end.
- pointed bristles are poorly responsive to mechanical abrasion near the tip. Excessive mechanical stress causes the tips of these bristles to break and, on the one hand, can no longer unfold the cleaning effect and, on the other hand, they entail the risk of injury to the gums caused by the edges and corners created during the break.
- the invention is therefore based on the object with minimal injury potential of the gums • to further improve the cleaning effect of toothbrushes with sharpened trimming and to optimize the life of the bristles.
- the invention is based on the finding that the cleaning effect of tapered filaments can be optimally utilized with minimum wear and tear if the path traveled by the sharpened filaments during intended use is limited.
- This possibility exists in electric toothbrushes, in which the brush head or the bristle carrier and thus the bristles is set by the drive in a predetermined manner in motion and usually only a minimal additional manual cleaning movement takes place.
- the path traveled by the tapered filaments or their tips during use can be easily controlled and limited by arranging the filaments on the bristle carrier.
- the sharpened filaments are arranged on the bristle carrier in such a way that their tips cover at most a predetermined maximum travel d max during operation of the electric toothbrush.
- the rest of the bristle carrier can be provided with conventional bristles and / or further cleaning elements, eg soft-elastic elements. Conventional bristles and / or other cleaning elements can also be arranged between the pointed filaments.
- the high-frequency movement of the pointed filaments ensures optimal cleaning performance. By limiting the way the tips travel, the wear of the bristles is minimized, thus minimizing the risk of injury to the gums.
- the maximum path d max of the tips is preferably 5 mm, particularly preferably 3 mm. These distances correspond to the typical dimensions of larger interdental spaces or teeth. If these maximum values are taken as a basis, the bristles move within the structures in the dentition. In this way, especially the finest fissures on the tooth surface and the interdental spaces can be easily reached. Furthermore, a so-called “whip effect” when sweeping the interdental spaces perpendicular to their orientation can be reduced. In the “whip effect", the pointed filaments bend due to their inherent flexibility to obstacles such as the Transition between two teeth, through and whip forward in a further movement, whereby the filaments are heavily used.
- the filaments may be pointed on one or both sides. They can also be colored at least in the area of the tip. By the color gradient, the wear of the brush is visible to the user, e.g. if the color washes out over time.
- Fig. La, b three teeth in side view and top view to illustrate the desired movements
- Fig. 2 shows a brush head with a rotatably associated bristle carrier with conventional
- FIG. 3 shows a brush head with a bristle carrier, which can be pivoted about the longitudinal axis, with conventional bristles and pointed filaments;
- Fig. 4 is a brush head with a vibrating
- Fig. 5a-c a brush head with a multi-part bristle carrier
- Figures 6a-d show preferred arrangements of bundles of sharpened filaments on a brush head
- Fig. 7 is a bristle carrier with bundles pointed filaments
- FIG. 8 shows a bristle carrier with bundles of sharpened filaments and conventional bristles
- Fig. 9a, b a conventional or pointed bristle
- FIG. 12 shows a brush head with bundles of bristles according to FIG. 10a.
- Fig. La, b shows three standing in a row of teeth teeth 1 with intermediate interdental spaces 2 in side view and top view. Examples of brush heads 3 with pointed filaments 5 will be apparent from the remaining figures.
- pointed filaments 5 are preferably small movements along the row of teeth in the X direction and slightly larger movements transverse to it, ie in the direction Y in the tooth plane or in the direction Z perpendicular to the tooth plane executed. Too large movements along the X direction should be avoided, since these are accompanied by a large mechanical load on the pointed filaments 5 (whip effect).
- the desired movements of the pointed filaments 5 extend over the total width bl of the interdental spaces 2 and over a strip of the width b2 or b3 along the flanks la, lb of the teeth.
- the width bl is typically approx.
- the brush head 3 is driven in such a way that the pointed filaments 5 reach more than 1 000 brushing movements per minute, but preferably more than 5 000 movements.
- the pointed filaments 5 reach more than 1 000 brushing movements per minute, but preferably more than 5 000 movements.
- significantly less than 1000 movements are achieved during the entire cleaning process.
- the tip 5a of a tapered bristle travels a distance d with respect to the resting dentition (ie, without superimposing an optionally manually performed brushing motion).
- the path d of the tips 5a of the filaments 5 is smaller than a predetermined maximum path d max , which is preferably 3 mm. These values correspond approximately to the size of large interdental spaces 2, which can thus be optimally cleaned without damaging the tips 5a. Controlling and limiting the movement of the tips 5a reduces the risk of injury to the gums.
- the maximum path depends d max of the tips 5a of the direction from where the maximum path d max ⁇ angs in the longitudinal direction L of the brush head 3 is preferably less than the maximum distance d max, q U he transversely thereto.
- d max long s 3 mm (X direction) and dm a x, q is 5 mm (Y, Z direction).
- FIGS. 2-4 and 5a-c show different examples of brush heads with a bristle field of conventional bristles 6 and pointed filaments 5.
- the bristles 5, 6 are each arranged in bundles 5 ', 6' on a bristle carrier 4.
- the bundles 6 'of conventional bristles 6 are symbolized by an empty circle and the bundles 5' of tapered filaments 5 by a circle with a dot.
- the bristle carrier 4 When brush head 3 shown in Fig. 2, the bristle carrier 4 is connected to the brush head 3 back and forth about a perpendicular to the bristle carrier 4 extending axis of rotation D.
- a suitable drive is present (not shown here).
- a maximum angle of rotation ⁇ is achieved.
- d max 3mm.
- the table shows that for small angles of rotation, in principle, the entire brush head 3 can be occupied with pointed bristles 5 and that, in the case of large angles of rotation, only one central segment 7 should be occupied by pointed bristles 5.
- Fig. 3 shows a brush head 3, which is pivoted in operation about its longitudinal axis L, so that the brush head 3 performs a rocking sideways movement.
- the brush head 3 covers an angle ß.
- d max 3mm.
- the rocking sideways movement is particularly suitable.
- this Tooth brush type move the tapered bristles 5 in use along the interdental spaces 2.
- the less desirable direction of the bristles and gums movement remains for the pointed bristles 5 from.
- the maximum distance traveled by the tips should also be less than 3 mm.
- the angle of rotation can thus be determined on the basis of the following table as a function of the distance of the tips from the pivot axis.
- Fig. 4 shows purely schematically a brush head 3, which vibrates in two directions Sl, S2 transversely to the longitudinal direction L.
- the brush head geometry has less influence on the deflection of the conventional and tapered bristles 5,6.
- the size of the deflection can be determined by the choice of current, motor and / or vibration sensors.
- the direction of the deflection can be influenced. Since the deflection of the brush head 3 and thus the tips of the pointed filaments 5 preferably follows the interdental spaces 2, the toothbrush should preferably have a have greater lateral deflection in the direction of Sl as a vertical displacement in the direction S2. Deflections of less than 3 mm also result in a very gentle effect and a stimulation of the gums.
- Fig. 5a-c show brush heads 3 in which a rotational movement is combined with other types of movement.
- a mechanical tooth movement e.g. Rotation
- the bristle carrier 4 is multi-part.
- a round first support element 4a is rotatably connected to the brush head 3 about the rotation axis D (see Fig. 2). It is occupied with conventional bristles 6.
- At least one further carrier element 4b is firmly connected to the brush head 3 and occupied by pointed filaments 5. It is set in vibration on rotation of the part 4a.
- this further support member 4b is in the longitudinal direction L in front of and behind the rotating support member 4a, in Fig.
- the moving carrier element 4 a with conventional bristles 6 undertakes the surface cleaning and the vibrating, only indirectly mechanically moved carrier element 4 b with the pointed bristles 5, the interdental cleaning and cleaning of the smallest structures. Instead of rotating the first carrier element 4a, it can also be pivoted about the longitudinal axis.
- Fig. 6a-d show examples of the arrangement of the pointed filaments 5 on the bristle carrier 4.
- the pointed filaments 5 are first combined into bundles 5 '. These are present in cross-section circular, but may also have a different shape, eg as shown in Fig. 10a-e.
- the bundles 5 ' are summarized in the brush head 3 according to FIG. 6a to rows 9, which extend transversely to the longitudinal direction L. This arrangement is preferably used at about the longitudinal axis L pivotable or vibrating in this direction bristle carriers 4, since the rows 9 match there with the direction of the bundle 5 '.
- the bristle bundles 5 1 are arranged on circular arcs 10. This arrangement is preferably used with rotating bristle carriers 4. There are two inner circles of bristle bundles 5 'with pointed filaments 5 whose maximum radius is r max . In both cases, the effective range of the sharpened bristles 5 can thus be limited spatially well.
- the mixed bristle field has the advantage that the sharpened bristles 5 have more freedom of movement and in use, despite bending at the tooth structures do not jam with each other.
- the tapered bristles 5 should have more freedom of movement than the normal bristles 6. Especially in the limit range, ie for arrangements in which the bristle tips cover approximately the maximum distance d max , such a mixture with normal bristles is advantageous.
- FIG. 6 d shows a bristle field in which the bundles 5 1 of tapered bristles 5 are arranged in arcuate segments 11. This arrangement corresponds essentially to Fig. 6b and is also suitable for rotating brushes. Instead of arranging bristle bundles 5 'with a round cross-section as described in groups (rows, circles, segments), it is also possible to use bristle bundles 5 1 with a correspondingly adapted cross-section (see FIG. 11 a).
- the pointed filaments 5 can move freely and the interdental spaces 2 are not clogged, the individual bundles 8 are preferably sufficiently spaced apart. Since, in certain embodiments, the tips cover different distances depending on their location on the bristle carrier 4, the minimum hole spacing x between adjacent bundles 8 is determined as a function of the distance traveled.
- FIG. 7 shows an example of a rotating bristle carrier 4, in which, for the sake of clarity, only a centrally arranged pair of bristle bundles 8 and a peripherally arranged further pair of bristle bundles 8 'are shown.
- the minimum distances xl near the rotation axis D are smaller than the minimum distances x2 farther from the rotation axis D.
- pointed stocking only lends itself to a suitable position on the brush head surface
- other types of filaments can be used at the unsuitable positions.
- Conventionally rounded bristles which consist for example of polyester PBT or polyamide PA, can be used in particular for surface cleaning of the tooth surface.
- additional soft rubber-elastic elements in the form of bristles, lamellae or other structures made of thermoplastic elastomer TPE can be injected or used.
- Fig. 8 shows an example of a bristle carrier 4 with such a mixed bristle field of pointed filaments 5 within a central field with radius r max and peripherally arranged conventional bristle bundles 6.
- Fig. 9a, b illustrates the dimensioning of the conventional or tapered bristles 5, 6.
- the outlined in Fig. 9a conventional bristles 6 have over their length a substantially constant nominal diameter ⁇ nenn (diameter at the thickest point of the bristle), for example 0.15 to 0.25 mm.
- the tip 6a of the bristle is rounded.
- the pointed bristles 5 outlined in Fig. 9b also have a constant diameter over a range of their length, e.g. also a nominal diameter of 0.15 - 0.25 mm.
- the bristle 5 tapers, beginning at a distance a from the tip 5a. Measured from the top 5a corresponds to the diameter at the appropriate location, for example, the following values:
- the nominal diameter is left over 75% over a major part of the length.
- the above table shows that the tapering of the filaments is predominantly on the last 4 to 5 mm. With this configuration, the tip 5a can optimally reach the smallest fissures and the interdental spaces 2 with sufficient filament stability.
- Polyamide is preferably used for the sharpened bristles but polyester (PBT).
- the tapering process is based on the reduction of the diameter by means of a chemical process. Depending on the length of the stay of the bristle in the chemical substance, the plastic degrades and reduces the diameter. The shape of the tip is so influenceable.
- Fig. LOa-e shows examples of the form of bundles 5 'of pointed filaments 5.
- Such a bundle 5 1 does not necessarily have a round shape.
- Substantially triangular (Fig. 10a), substantially rectangular (Fig. 10b), elliptical (Fig. 10c), circular arc (Fig. 10d) or other shapes (Fig. 10e) are contemplated.
- the elongated shapes according to FIG. 10a-c are particularly suitable for pivotable toothbrushes and can instead of the arrangement of round bundles of bristles
- Fig. 5 is shown with the shape shown in Fig. 10a).
- the shape shown in Fig. 10d is particularly advantageous for rotary toothbrushes.
- the largest dimension e is preferably about 3 mm and thus corresponds to a large interdental distance. If too many filaments per bundle 5 1 are combined, this can lead to an unnecessary stiffening of the individual filaments 5 and make penetration into the interdental spaces 2 more difficult.
- a bundle 5 'therefore preferably contains less than 80, more preferably less than 50 pointed tips 5a of the filaments 5. In this case, depending on the manufacturing technique, each filament may have one or two pointed tips 5a. Certain filaments also have a round and pointed tip 5a.
- FIGS. 10f + g show examples of the height profile of the bristle bundles 5 'from FIG. 11d or FIG. Such non-constant height profiles are preferably realized in the AFT or IMT method.
- FIGS. 11a-e show brush heads 3 in side view, in which the tips 5a of the pointed filaments 5 form different profiles. Flg. FIGS. 11a and 11b relate to pivotable brush heads.
- FIG. 1 shows a rotating brush head.
- Fig. 11a is the easiest to produce. Only one basic filament length is used using conventional stamping technology. About 80% of the filament ends are positioned within a height range ⁇ h of 4 mm width. Different filament lengths within these limits are desirable to some extent, as they make interdental penetration easier than at exactly the same length as when cutting conventional bristles. Individual, massively protruding filaments should, however, be avoided, since they harbor the risk of injury to the gums, especially in the case of high-frequency movement.
- 11b shows a brush head in which a profile shape deviating from a plane is produced by means of conventional punching technology with two different basic lengths of the sharpened bristles. Usually both ends of the filaments are tapered. The latter are bent to a bristle U-shaped. For this reason, you can not cut the sharpened trimming and is limited with this technology on different levels, here levels El and E2. Within the levels El, E2 are in turn height variations within the approximately 4 mm wide
- the sharpened filaments 5 for interdental cleaning are preferably longer than conventionally rounded bristles or massage elements.
- the insertion of the different types of bristles in the bristle carrier is preferably carried out while simultaneously displacing the other bristle variety (s).
- the bristle carrier 4 may be multi-part, separately bristled and then joined together.
- the AFT (Anchor Free Tufting) or IMT (In Mold Tufting) method is especially suitable.
- the AFT method is described for example in EP-A 0 972 464.
- the IMT Process is described, for example, in EP-A 0 795 711 and EP-A 0 346 646.
- the sharpened filaments 5 are in this case, unlike the conventional plug, tapered only on one side of the AFT or IMT system supplied.
- the length of the filaments is between 10 and 20 mm.
- the filaments are inserted with the tips down in the fabric boxes. A subsequent reorientation within the AFT or IMT system is therefore unnecessary.
- the filaments are pushed by the pushing means on the sharpened side through the Borstentr ger (at IMT through the transport inserts).
- the bristle carrier has recesses for the bristles. The non-pointed side is cut and then melted as known. If the bristle carrier is not integral with the brush head, the two parts are preferably connected together by means of ultrasonic welding.
- the AFT or IMT process allows for simplified production of tapered filaments, as they only need to be sharpened on one side. Furthermore, by appropriate design of the sliding means, the individual bundles can be profiled, for example for better interdental penetration. Examples of this are shown in FIG. 11c-e and also in FIG. 10f + g (profiling of the individual bundles). This is not possible with conventional stuffing technology. Since the filaments are cut after profiling, only one filament length needs to be guided. The bristles can be cut to the desired length. In contrast, with conventional stuffing technology, multiple lengths of fabric must be used to create a topography deviating from the plane.
- the AFT and IMT method thus has great advantages for the production of the toothbrushes according to the invention, since it allows a largely arbitrary shape of the bristle bundles. Thus, the path traveled by the tips in use can be controlled particularly well.
- the manufacturing method can be advantageously used for the production of manual toothbrushes.
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- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
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Abstract
Description
Claims
Priority Applications (21)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES03711782T ES2385474T3 (es) | 2003-04-22 | 2003-04-22 | Cabezal de cepillo para un cepillo de dientes eléctrico |
EP17204492.7A EP3305245B1 (de) | 2003-04-22 | 2003-04-22 | Bürstenkopf für eine elektrozahnbürste |
CN03826348A CN100592898C (zh) | 2003-04-22 | 2003-04-22 | 用于电动牙刷的刷头、其制造方法和电动牙刷 |
AT03711782T ATE555744T1 (de) | 2003-04-22 | 2003-04-22 | Bürstenkopf für eine elektrozahnbürste |
AU2003218595A AU2003218595B2 (en) | 2003-04-22 | 2003-04-22 | Brush head for an electric toothbrush |
EP03711782A EP1615586B1 (de) | 2003-04-22 | 2003-04-22 | Bürstenkopf für eine elektrozahnbürste |
EP14004218.5A EP2886081B1 (de) | 2003-04-22 | 2003-04-22 | Elektrozahnbürste mit Bürstenkopf |
EP12000415.5A EP2449918B1 (de) | 2003-04-22 | 2003-04-22 | Bürstenkopf für eine Elektrozahnbürste |
ES12000415T ES2424942T3 (es) | 2003-04-22 | 2003-04-22 | Cabezal de cepillo para un cepillo de dientes eléctrico |
CA2522103A CA2522103C (en) | 2003-04-22 | 2003-04-22 | Brush head for an electric toothbrush |
BRPI0318268A BRPI0318268B8 (pt) | 2003-04-22 | 2003-04-22 | processo para a produção de uma cabeça de escova para uma escova de dente, cabeça de escova para uma escova de dente e escova de dentes |
PCT/CH2003/000263 WO2004093718A1 (de) | 2003-04-22 | 2003-04-22 | Bürstenkopf für eine elektrozahnbürste |
MXPA05011251A MXPA05011251A (es) | 2003-04-22 | 2003-04-22 | Cabeza de cepillo para un cepillo de dientes electrico. |
US11/255,990 US7419225B2 (en) | 2003-04-22 | 2005-10-24 | Brush head for an electric toothbrush |
US11/826,442 US8341792B2 (en) | 2003-04-22 | 2007-07-16 | Brush head for a toothbrush and method for producing the brush head |
US12/010,500 US8185993B2 (en) | 2003-04-22 | 2008-01-25 | Brush head for a toothbrush and method for producing the brush head |
AU2009233680A AU2009233680B2 (en) | 2003-04-22 | 2009-11-06 | Brush head for an electric toothbrush |
US13/690,824 US8621699B2 (en) | 2003-04-22 | 2012-11-30 | Brush head for a toothbrush and method for producing the brush head |
US14/089,310 US9681933B2 (en) | 2003-04-22 | 2013-11-25 | Brush head for a toothbrush and method for producing the brush head |
US15/596,910 US10610340B2 (en) | 2003-04-22 | 2017-05-16 | Brush head for a toothbrush and method for producing the brush head |
US16/802,085 US11219513B2 (en) | 2003-04-22 | 2020-02-26 | Brush head for a toothbrush and method for producing the brush head |
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PCT/CH2003/000263 WO2004093718A1 (de) | 2003-04-22 | 2003-04-22 | Bürstenkopf für eine elektrozahnbürste |
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US11/255,990 Continuation US7419225B2 (en) | 2003-04-22 | 2005-10-24 | Brush head for an electric toothbrush |
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US (7) | US7419225B2 (de) |
EP (4) | EP2886081B1 (de) |
CN (1) | CN100592898C (de) |
AT (1) | ATE555744T1 (de) |
AU (2) | AU2003218595B2 (de) |
BR (1) | BRPI0318268B8 (de) |
CA (1) | CA2522103C (de) |
ES (2) | ES2424942T3 (de) |
MX (1) | MXPA05011251A (de) |
WO (1) | WO2004093718A1 (de) |
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- 2003-04-22 CA CA2522103A patent/CA2522103C/en not_active Expired - Lifetime
- 2003-04-22 EP EP03711782A patent/EP1615586B1/de not_active Expired - Lifetime
- 2003-04-22 AU AU2003218595A patent/AU2003218595B2/en not_active Expired
- 2003-04-22 ES ES12000415T patent/ES2424942T3/es not_active Expired - Lifetime
- 2003-04-22 MX MXPA05011251A patent/MXPA05011251A/es active IP Right Grant
- 2003-04-22 WO PCT/CH2003/000263 patent/WO2004093718A1/de not_active Application Discontinuation
- 2003-04-22 EP EP17204492.7A patent/EP3305245B1/de not_active Expired - Lifetime
- 2003-04-22 AT AT03711782T patent/ATE555744T1/de active
- 2003-04-22 BR BRPI0318268A patent/BRPI0318268B8/pt not_active IP Right Cessation
- 2003-04-22 CN CN03826348A patent/CN100592898C/zh not_active Expired - Lifetime
- 2003-04-22 ES ES03711782T patent/ES2385474T3/es not_active Expired - Lifetime
- 2003-04-22 EP EP12000415.5A patent/EP2449918B1/de not_active Expired - Lifetime
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2005
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2007
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2008
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2009
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-
2012
- 2012-11-30 US US13/690,824 patent/US8621699B2/en not_active Expired - Lifetime
-
2013
- 2013-11-25 US US14/089,310 patent/US9681933B2/en active Active
-
2017
- 2017-05-16 US US15/596,910 patent/US10610340B2/en not_active Expired - Fee Related
-
2020
- 2020-02-26 US US16/802,085 patent/US11219513B2/en not_active Expired - Lifetime
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Cited By (25)
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USRE47468E1 (en) | 2001-12-28 | 2019-07-02 | Trisa Holding Ag | Toothbrush and process for producing such a toothbrush |
US10405642B2 (en) | 2002-12-19 | 2019-09-10 | Trisa Holding Ag | Toothbrush and process for producing the same |
EP1661485A3 (de) * | 2004-11-19 | 2012-07-11 | FIRMA G.B. BOUCHERIE, naamloze vennootschap | Zahnbürste |
EP3610830A1 (de) | 2006-09-29 | 2020-02-19 | Trisa Holding AG | Aufsteckbürste für eine elektrozahnbürste |
EP2272463A2 (de) | 2006-09-29 | 2011-01-12 | Trisa Holding AG | Elektrozahnbürste und Getriebe für eine Elektrozahnbürste |
DE202007019478U1 (de) | 2006-09-29 | 2012-11-09 | Trisa Holding Ag | Elektrozahnbürste und Getriebe für eine Elektrozahnbürste |
EP2548531A2 (de) | 2006-09-29 | 2013-01-23 | Trisa Holding AG | Elektrozahnbürste und Getriebe für eine Elektrozahnbürste |
EP2526815A2 (de) | 2008-06-07 | 2012-11-28 | Trisa Holding AG | Zahnbürste mit gemischten Borstenbündeln und Verfahren zur Herstellung |
US8534769B2 (en) | 2008-06-07 | 2013-09-17 | Trisa Holding Ag | Method for producing toothbrushes bristled in an anchorless manner |
US9173480B2 (en) | 2008-06-07 | 2015-11-03 | Trisa Holding Ag | Method for producing toothbrushes covered with bristles in an anchor-free manner |
EP2130454A1 (de) | 2008-06-07 | 2009-12-09 | Trisa Holding AG | Verfahren zum Herstellen von ankerlos beborsteten Zahnbürsten |
WO2009146909A2 (de) * | 2008-06-07 | 2009-12-10 | Trisa Holding Ag | Verfahren zum herstellen von ankerlos beborsteten zahnbürsten |
WO2009146909A3 (de) * | 2008-06-07 | 2010-04-29 | Trisa Holding Ag | Verfahren zum herstellen von ankerlos beborsteten zahnbürsten |
WO2010128894A1 (ru) | 2009-05-04 | 2010-11-11 | Khudoley Vladimir | Механическая зубная щетка и механизм её привода (варианты) |
USD814796S1 (en) | 2014-07-31 | 2018-04-10 | Colgate-Palmolive Company | Oral care implement |
USD813550S1 (en) | 2014-07-31 | 2018-03-27 | Colgate-Palmolive Company | Oral care implement |
USD764177S1 (en) | 2014-07-31 | 2016-08-23 | Colgate-Palmolive Company | Oral care implement |
USD860653S1 (en) | 2014-07-31 | 2019-09-24 | Colgate-Palmolive Company | Toothbrush |
USD764176S1 (en) | 2014-07-31 | 2016-08-23 | Colgate-Palmolive Company | Oral care implement |
USD886460S1 (en) | 2014-07-31 | 2020-06-09 | Colgate-Palmolive Company | Toothbrush |
US11219303B2 (en) | 2016-04-20 | 2022-01-11 | Trisa Holding Ag | Brush product and method for the production thereof |
US11622618B2 (en) | 2018-12-13 | 2023-04-11 | Colgate-Palmolive Company | Oral care implement |
USD1023582S1 (en) | 2018-12-13 | 2024-04-23 | Colgate-Palmolive Company | Toothbrush |
USD961269S1 (en) | 2020-07-31 | 2022-08-23 | Colgate-Palmolive Company | Oral care implement |
USD1024571S1 (en) | 2022-06-17 | 2024-04-30 | Colgate-Palmolive Company | Oral care implement |
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