EP2150147A1 - Vorrichtung zur zahn- und/oder mundreinigung und verfahren zur herstellung - Google Patents
Vorrichtung zur zahn- und/oder mundreinigung und verfahren zur herstellungInfo
- Publication number
- EP2150147A1 EP2150147A1 EP08735403A EP08735403A EP2150147A1 EP 2150147 A1 EP2150147 A1 EP 2150147A1 EP 08735403 A EP08735403 A EP 08735403A EP 08735403 A EP08735403 A EP 08735403A EP 2150147 A1 EP2150147 A1 EP 2150147A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- functional body
- functional
- longitudinal
- enveloping
- tool carrier
- 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
Links
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- 239000000463 material Substances 0.000 claims abstract description 25
- 229920003023 plastic Polymers 0.000 claims abstract description 25
- 239000004033 plastic Substances 0.000 claims abstract description 24
- 238000004140 cleaning Methods 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 13
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- 239000007924 injection Substances 0.000 claims description 10
- 238000001746 injection moulding Methods 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 8
- 210000003813 thumb Anatomy 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims 1
- 210000003739 neck Anatomy 0.000 description 25
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- 101100390736 Danio rerio fign gene Proteins 0.000 description 6
- 101100390738 Mus musculus Fign gene Proteins 0.000 description 6
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- 210000000214 mouth Anatomy 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 210000003128 head Anatomy 0.000 description 4
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- 239000004743 Polypropylene Substances 0.000 description 2
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- 238000004080 punching Methods 0.000 description 2
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- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241000549893 Carphochaete Species 0.000 description 1
- 229920002160 Celluloid Polymers 0.000 description 1
- 229920001634 Copolyester Polymers 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 241000628997 Flos Species 0.000 description 1
- 229920000106 Liquid crystal polymer Polymers 0.000 description 1
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
- A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
- A46B5/0054—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
- A46B5/0062—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being flexible or resilient during use
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
- A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
- A46B5/0054—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
- A46B5/0062—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being flexible or resilient during use
- A46B5/007—Inserts made of different material, e.g. springs, plates
-
- 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
Definitions
- the present invention relates to a device for tooth and / or mouth cleaning, in particular a toothbrush, with a preferably approximately rod-shaped tool carrier to which a cleaning tool, in particular a bristle field, can be fastened, wherein the tool carrier is formed as a composite body, which is an enveloping body of a first Material, preferably plastic, and embedded in the enveloping body of a second material, preferably metal, and a method for its preparation.
- the tool carrier in which a strength-enhancing reinforcement is embedded in an enveloping body.
- manifold designs of the reinforcing body have been proposed.
- the GB 20 50 156 A1 proposes a manual toothbrush, in which a metal strip is provided as a reinforcement in the handle, which is embedded in an enveloping body made of hard plastic.
- the metal strip extends into the brush head, where it also serves to attach the bristle tufts.
- the bond between metal strip and hard plastic shell can cause problems, moreover, the achieved increase in strength is limited to a brush bend in the longitudinal center plane of the brush.
- US 4,829,621 proposes a manual toothbrush with a reinforcing body in the region of the toothbrush neck, which allow bends of the toothbrush neck in the longitudinal center plane of the brush and fix the brush head in different bending positions, so to speak should be able to work with different offsets of the brush head.
- the reinforcing body is formed substantially rod-shaped.
- US Pat. No. 3,857,134 proposes a toothbrush in whose bristle carrier section a reinforcing plate made of rigid material, such as steel or fiber-reinforced plastic, is embedded in a plastic enveloping body, whereby here too the reinforcing body is used for fastening the bristle tufts.
- a toothbrush is known from US 2004/170464, in which stiffening ribs are formed in the area of the toothbrush neck and the back of the bristle carrier in order to increase the bending strength of the toothbrush.
- the GB 231, 753 further describes a manual toothbrush, in which a circumferential metal wire is embedded as a reinforcement in the handle.
- a toothbrush is also known, the handle is sandwiched and has a plate-shaped reinforcement, which is embedded in a sheath body of celluloid, wherein as a reinforcement wire mesh is proposed.
- US 2004/060138 describes a toothbrush whose handle is designed as a composite body, the body portions of softer material and body portions of harder material, which serve the stiffening, said the handle is at least partially made of transparent plastic.
- the present invention has for its object to provide an improved device for tooth and / or oral cleaning of the type mentioned above, which avoids the disadvantages of the prior art and further develops the latter in an advantageous manner.
- a lighter, high strength tool holder for such a tooth or mouth cleaning device is to be created, which better resists the typical cleaning forces, but does not affect the functionality of the toothbrush, in particular selectively allows elasticity and has an optically improved design.
- the present invention proposes that the Arm michstage is at least partially formed as a truss-like frame framework, extending in the longitudinal direction of the tool carrier longitudinal straps and a Variety has the longitudinal straps connecting cross-connecting rods.
- a continuous removal of tensile or compressive forces can be achieved via the longitudinal straps, in addition, such a framework frame in relation to its weight high-strength and stiff, in particular rigid.
- the strength can be precisely controlled, in particular different strengths and stiffnesses can be achieved in different levels. Compared to wire mesh fabrics, warping, as is common in wire mesh with diagonal forces, is virtually nonexistent.
- a good bond can be achieved with the material of the enveloping body, since the enveloping material penetrates the framework recesses.
- the functional body is provided with recesses, which are preferably formed continuously as breakthroughs. Here is also given by the recesses a mechanical binding possibility to the enveloping body.
- the longitudinal straps of the framework frame can basically have a straight course.
- the longitudinal straps can be adapted in their course to the outer contour of the envelope body and at least partially have a deviating from the straight course.
- Handles of toothbrushes often have, in particular for ergonomic reasons, a multiple bent or kinked course in order to better grip the toothbrush and to be able to guide the bristle field at a more favorable angle to the teeth.
- the longitudinal straps of the framework frame are adapted to the curved in this case outer contour of the enveloping body of the handle, so that they essentially follow the curvature or the bends of the enveloping body.
- the longitudinal straps are arranged on the edge of the framework frame, wherein they can form in particular the outer contour of the framework frame, so that it has a defined, in particular adapted to the outer contour of the envelope body edge contour.
- further longitudinal straps may be provided, which likewise extend approximately in the longitudinal direction of the tool carrier.
- an advantageous embodiment of the invention can consist in that only at the edges of the framework frame longitudinal straps are provided.
- the longitudinal straps and the transverse connecting rods can basically be connected to one another differently.
- the belt and the cross-connecting rods can be materially connected to each other.
- the entire framework framework and / or the entire Arm michsève may be integrally formed integrally.
- the longitudinal straps can be arranged substantially parallel to one another. Alternatively, however, the longitudinal straps may also have a varying distance from each other along their longitudinal extent. As a result, an adaptation of the truss frame to an optionally longitudinally changing cross-section of the enveloping body can be achieved and the available cross-section can be optimally utilized. Alternatively or additionally, however, the strength and bending stiffness of the truss frame can be selectively controlled and varied over the length by a varying distance of the edge-side longitudinal straps.
- the framework frame may have different length cross connection bars and / or it may be provided with respect to the longitudinal straps differently steep employees cross tie rods.
- the functional body can also have a meandering, wave-shaped, staircase-shaped and / or zigzag-shaped course which essentially follows a longitudinal extent of the tool carrier.
- the reinforcing body may in particular consist of a profile carrier, which has the said course and has a substantially constant cross section, but it is alternatively also possible to vary the cross section over the course.
- a targeted elastic formation of the tool carrier can be promoted;
- a stress removal in different layers of the enveloping body can be achieved because the bending stresses occurring in the reinforcing beam at different points of the enveloping body and vice versa are removed.
- a reinforcing body having such a meandering or wavy course despite possibly high elasticity, achieves a high impact resistance of the tool carrier.
- toothbrush necks are sufficiently impact resistant trained to withstand the frequent hitting the sink edge.
- the said meandering or wavy-line or, if appropriate, also zigzag-shaped course of the reinforcement carrier is advantageously two-dimensional, that is to say in the form of a line. just trained.
- the reinforcement carrier can also have at least sections of alternating bulges in a third spatial axis.
- the reinforcement carrier from a bolted profile, for example in the form of a helically bent wire exist.
- the aforementioned oscillating, in particular meandering or wave-shaped course of the reinforcing body can have a varying amplitude along the longitudinal extension in the invention, i. the extent of the bulges transverse to the longitudinal direction of the reinforcing beam can vary, i. become stronger and weaker over the length.
- a targeted control of the strength and rigidity can be achieved
- an adaptation of the reinforcing body can be made to possibly varying cross sections of the tool carrier.
- the functional body embedded in the enveloping body can be designed according to another aspect of the present invention in that its area moment of inertia with respect to an axis perpendicular to the longitudinal center plane or plane of symmetry of the tool carrier is a multiple, for example at least twice, but also more than five times, its area moment of inertia with respect to an axis lying in said longitudinal center or symmetry plane of the tool carrier.
- the bending stiffness of the handle or brush tube is selectively increased against deflections in the aforementioned longitudinal center or plane of symmetry, while transverse bends are specifically permitted or the elasticity in the transverse direction is hardly influenced.
- the vertical contact pressure of the bristle field can be selectively controlled on the tooth flanks, while the brush head can bend away during upward and wiping movements along the side edges of the teeth at too high a resistance, for example on the gum line.
- the embedded Arm istsève may be formed substantially plate-shaped and / or planar, wherein it advantageously is arranged substantially upright in the handle or brush tube of a toothbrush, ie the Arm michsève has in the longitudinal center or plane of symmetry of the toothbrush a maximum extent, which is a multiple of its extension transverse to said longitudinal center or plane of symmetry.
- carrying tool carrier portion may be provided according to an advantageous embodiment of the invention that the reinforcing body ends before a tool attachment portion and / or the tool attachment portion is formed without armoring , If the tool carrier is a toothbrush tube or a toothbrush handle, it can be provided in an advantageous manner that the reinforcing body ends in front of the bristle field.
- the reinforcement carrier may extend from the end opposite the bristle field to approximately the toothbrush neck.
- the functional body has a main plane which is arranged coplanar with the longitudinal center or symmetry plane of the tool carrier.
- a plurality of functional bodies may be embedded in the enveloping body, for example, two plate-shaped reinforcing bodies may be embedded in a toothbrush handle to the right and left of the longitudinal median plane.
- the enveloping body of the tool carrier can be made transparent at least in sections in the region of the embedded functional body, so that the embedded functional body can be viewed through the enveloping body.
- this can serve to control cracks in order to be able to detect separations of the embedded functional body from the material of the enveloping body or even cracks in the functional body itself.
- advantageous optical effects can be achieved thereby.
- it permits an at least partially transparent formation of the enveloping body to achieve a high product diversity, in particular different optical configurations of the toothbrush, in a simple manner, with the formation of the enveloping body and thus injection-molded design without changing the injection molding process.
- the enveloping body in its transparent section can advantageously also be formed visually image-changing, in particular drawing, distorting, enlarging and / or reducing action.
- the enveloping body in its transparent portion for example, form an optical lens, in particular to achieve a magnifying effect.
- the enveloping body can also form an optical prism in its transparent section.
- the embedded functional body and the enveloping body are formed differently in that one body is at least partially opaque and the other body is at least partially transparent.
- the embedded functional body is opaque, so that it is visible through the enveloping body.
- the invention is further based on the object of providing a method for producing a device for oral or dental cleaning, which allows a slim design of a composite body.
- 1 is a side view of a manual toothbrush, the handle is designed as a composite body and has a reinforcement in the form of a framework framework,
- FIG. 2 a side view of the toothbrush from FIG. 1, FIG.
- FIG. 3 is a side view of a toothbrush similar to the preceding figures, the handle is also formed as a composite body and having a reinforcement in the form of a framework framework, wherein the enveloping body is transparent and the embedded functional body is visible through the enveloping body, 4 shows a side view of the embedded functional body of the toothbrush from FIG. 3, FIG.
- FIG. 5 shows a side view of an embedded functional body according to an alternative embodiment for a toothbrush from FIGS. 1 to 3, FIG.
- FIG. 6 shows a side view of an embedded functional body according to an alternative embodiment for a toothbrush from FIGS. 1 to 3, FIG.
- FIGS. 1 to 3 show a side view of an embedded functional body according to an alternative embodiment for a toothbrush from FIGS. 1 to 3,
- FIG. 8 shows a side view of an embedded functional body according to an alternative embodiment for a toothbrush from FIGS. 1 to 3, FIG.
- FIG. 9 shows a schematic side view of a functional body for a toothbrush according to FIG. 1, FIG.
- FIGS. 10.1 to 10.13 schematic cross-sectional representations along the section line A-A in FIG. 9 for alternative embodiments of the functional body
- FIGS. 11.1 to 11.6 schematic sectional views through the section C-C in the functional body according to Fig. 4,
- FIGS. 12.1 to 12.3 schematic sectional views along the section B-B in the functional body according to Fig. 4,
- FIGS. 13 shows a side view of an alternative embodiment of the functional body for a toothbrush according to FIGS. 1 or 15,
- FIGS. 14 shows a side view of a further alternative embodiment of a functional body for a toothbrush according to FIGS. 1 or 15,
- FIG. 15 shows a side view of a toothbrush with a functional body according to FIG. 14 or
- FIG. 16 shows a side view of a toothbrush with a functional body according to FIG. 14 or 15, FIG.
- 17 is a schematic representation of the tool holding device for holding the functional body in the injection molding process for a toothbrush according to one of the above figures and
- FIG. 18 is a side sectional view of the functional body with tool holding device according to FIG. 17.
- a toothbrush 1 in the form of a manual toothbrush which has a generally rod-shaped handle 2, which merges into a brush neck 3 and is connected via this to a brush head 4, to which a bristle pad 5 is optionally secured interchangeably ,
- the handle 2 thus forms together with the brush neck 3, a tool carrier 6, which forms a tool attachment portion in the region of the brush head 4, to which the said bristle field 5 is attached.
- the handle 2 is slightly arcuately curved and has a varying over its longitudinal extent cross-section to lie better in the hand.
- Said brush neck 3 is slightly curved in the opposite direction to the handle 2, so that the aforementioned tool holder 6 has a total of a slightly S-shaped contour.
- the tool carrier 6 is designed to be symmetrical overall, so that the plane of the drawing of FIG. 2 forms a longitudinal center and symmetry plane 7 of the toothbrush 1.
- the toothbrush is curved in the handle area on the underside to the outside and on the O- over side, this is the same side on which the thumb rest and the bristle field is provided on the head, with flat surfaces, preferably provided with roof-shaped surfaces.
- the handle 2 and a portion of the brush head 4 are formed as a composite body.
- a lying inside the functional body 8, which is formed in the illustrated embodiment as Arm michs stresses is embedded in an enveloping body 9, in particular material, force and / or positively connected thereto, wherein advantageously the aforementioned functional body 8 of a harder, stiffer and / or stronger material al, such as metal or plastic, is formed and the enveloping body 9 is made of a softer, more impact resistant and / or steaming material.
- the functional body may be made of stainless metal, in particular steel, or of plastics such as POM or liquid crystal polymer (FKP).
- the functional body is produced by punching or lasering or by a chemical or electrochemical process, especially if recesses are required.
- a plastic solution for the functional body this can also be produced by punching or injection molding.
- the melting point of the functional body made of plastic is preferably above that of the enveloping body.
- the enveloping body 9 of a plastic so preferably from a plastic component such as polypropylene or a copolyester (transparent) or - in a variant in combination with the hard component PP or others or without them - with a (optionally transparent) elastomer (such as TPE ) be injection molded.
- the enveloping body 9 is not formed material homogeneous, but composed of several material sections or layers.
- a soft plastic layer for example in the two-component injection-molding process, may be applied in sections to a hard plastic layer.
- the surface soft plastic portion 10 comprises a surface corrugation.
- the portion 10 is formed of the same component as the remaining plastic enveloping body, so that the entire enveloping body is formed of a component.
- the embedded functional body 8 may be formed substantially plate-shaped or have a plate-shaped envelope and upright in the handle 2 to be standing, wherein the functional body 8 in the illustrated embodiment of Figure 1 is substantially coplanar with the aforementioned Longitudinal center plane 7 of the toothbrush 1 extends.
- the embedded functional body 8 extends from the end of the handle 2 facing away from the bristle field 5 to approximately in the middle of the brush neck 3 or zooming in to the brush head 4; There, however, the functional body 8 terminates, so that an adjacent to the brush head 4 part of the brush neck 3 and said brush head 4 are formed even without arming.
- FIG. 4 forms in the illustrated embodiment, a flat truss frame 4 in the manner of a truss, wherein two longitudinal straps or strap bars 12, which extend substantially in the longitudinal direction of the handle 2 and the brush neck 3, along the edges of the frame frame 11 are arranged or Form edges of the framework frame 11 and a plurality of cross-connecting rods 13 are provided between said longitudinal straps 12 and connect them together.
- the cross-connecting rods 13 are arranged at an acute angle to the longitudinal straps 12, so that as a whole, a - roughly speaking - serpentine course of the cross-connecting rods 13 results.
- the longitudinal straps 12 may be formed of the same material together with the transverse connecting rods 13, for example, the framework frame 11 may be punched out of a metal sheet.
- the longitudinal straps 12 are adapted in their course to the outer contour of the handle 2 and the brush neck 3. They essentially follow the curved or kinked course of the longitudinal section outer contour of said handle 2 and of the brush neck 3.
- the longitudinal straps 12 thereby vary in their distance from each other along the longitudinal extent of the toothbrush.
- the cross-connecting rods 13 are accordingly formed at different longitudinal sections of the handle 2 of different lengths, such. B. in the region of the bend between the handle 2 and the brush neck 3 is particularly long, cf. FIG. 4.
- a similar structure of the embedded functional body 8 shows the embodiment of Figure 5.
- the functional body 8 forms a framework frame 11, but only in sections.
- a portion 16 is provided between two sections 14 and 15, which are formed as a framework frame 11, in which the functional body 8 is formed in the form of a solid strip or a solid plate without openings.
- the embodiment according to FIG. 5 shows that the framework frame 11 can have more than two longitudinal straps 12 at least in sections. In the transition region between the handle 2 and the brush neck 3 three longitudinal straps 12 are provided in the illustrated embodiment of Figure 5.
- the embedded functional body can also be designed in the form of a meandering or wave-shaped or oscillating coil.
- the functional body 8 consists of a profile carrier with a substantially constant cross section in the form of a wire, which is substantially the longitudinal extent of the handle 2 and the brush head 3 follows, however, with respect to this longitudinal extension bulges back and forth, so that an oscillating course is given whose center line follows substantially the curved longitudinal extent of the handle 2 and the brush neck 3.
- the functional body 8 shown in FIG. 6 also extends substantially from the end of the handle 2 facing away from the brush head 4 to approximately the middle of the brush neck or to the brush head 3.
- FIG. 7 A further possible embodiment of the embedded functional body 8 is shown in FIG. 7, according to which the functional body 8 consists essentially of a rod-shaped profile carrier, the cross section of which, however, changes in the longitudinal direction. In particular, the cross-section decreases towards the ends, while a middle section of the functional body 8 has an enlarged cross-section with respect to the end sections.
- the rod-shaped functional body 8 according to Figure 7 has an overall slightly S-shaped curved course, which follows the correspondingly curved course of the longitudinal extent of the handle 2 and the brush neck 3 substantially.
- Figure 8 shows a further variant of the functional body 8. This is designed as a plate-shaped metal body with recesses in the form of circular openings. This round recesses (tool-related) can be easier to produce.
- the enveloping body 9 of the tool carrier 6 can be made transparent, as shown by the embodiment of FIG.
- the embedded functional body 8 is visible through the enveloping body 9, allowing observation of the embedded functional body 8 and achieving special optical effects.
- a high optical variety of products can be achieved without having to change the injection molding tools for the enveloping body 9. All that is needed is differently configured functional bodies 8, for example, as shown in FIGS. 4 to 7, to be inserted. Due to the shape of the hangriff cross section while a magnifying effect is generated advantageous.
- Fig. 9 shows schematically in side view a functional body 8, which may have any shape of recesses or truss structure or no recesses.
- the Fign. 10.1 to 10.13 show schematic variants of the cross-sectional area of the functional body at the location of the section AA in Fig. 9. It is understood that these cross-sectional representations according to FIGS. 10.1 to 10.13 are preferred over the entire length of the functional body 8 and not only given at the position of the section AA shown in Fig. 9 or vary as in the embodiment of Figure 7 over the length. Deviations in the section can arise in particular due to the nature of the recesses in FIG. 9, since these are shown in FIGS. 10.1 to 10.13 are not further illustrated or considered, although they may be given. After the Fign.
- the cross-sectional shape of the functional body is designed in the form of a polygon.
- the cross section may form a triangle, a quadrilateral, in particular a square, a pentagon or a polygon with further corners.
- the cross-sectional area is formed in specific geometric shapes such as a cross (FIG. 10.4), a shaft (see FIG. 10.5) or in the form of two platelets standing upright, which are in particular connected to a transverse bar, so that the overall shape of a cross-section H is formed in cross section.
- the flexural rigidity and / or an area moment of inertia of the functional body with respect to an axis perpendicular to a longitudinal plane of symmetry 7 of the tool carrier 6 is a multiple of a flexural rigidity and / or a moment of area of the functional body 8 with respect to an axis lying in said longitudinal symmetry plane 7.
- FIGS. 11.1 to 11.6 show different cross-sectional geometries of the functional body 8 along the section CC in the functional body according to FIG. 4.
- cross-sectional shapes of the functional body in a direction transverse to the inflow direction of the plastic of FIG Tool carrier 6 during the injection process deviating from the angular formation of Fig. 11.1 for rounded, circular, oval or more polygonal cross-sectional shape possible.
- the Fign. 12.1 to 12.3 show cross-sectional shapes which are likewise circular, drop-shaped or otherwise rounded (see in particular Figures 12.2 and 12.3), so that in the flow direction of the injected plastic for the enveloping body 9 a turbulence-free injection and inflow is possible.
- the flow direction is shown in FIGS.
- FIGS. 12.2 and 12.3 symbolically represented by the direction of the arrow 31.
- a bubble or Lunker Struktur 30 is indicated, because here the cross-sectional profiles are not rounded.
- the further optimized embodiments according to FIGS. 12.2 and 12.3 are thus optimized to avoid blistering during injection / inflow of the enveloping body 9.
- the cross sections can be used with any type of function carriers with all possible recesses or without recesses and with all cross sections according to FIGS. 10.1 to 10.13 are combined.
- FIG. 13 shows the side view of a functional body 8 with truss structure, which is somewhat modified from that in Fig. 4, wherein the cross sections of the truss belts as shown in FIGS. 11.1 and 12.1 are formed.
- FIG. 14 shows an alternative embodiment to FIG. 13 of the functional body 8 in side view, the cross-sectional areas on the outer contours according to FIG. 11.1 and the truss struts in the inner area according to FIG. 12.3 being rounded here.
- This is an optimization against blistering in Schmelzhneiquess- course when injecting the plastic component for the enveloping body 9 in the embodiment of FIG. 14 is given.
- the two examples according to FIGS. 13 and 14 also illustrate that any combinations of the cross-sectional shapes according to FIGS. 11 and 12 are executable.
- portions of the functional body 8 which have a transverse component in the case of a recess to the longitudinal direction of the toothbrush (ie also predominantly along the melt flow direction) are preferably provided with fillets.
- FIGS. 15 and 16 show toothbrushes in side view, in which the functional bodies 8 are inserted, for example, either according to FIG. 13 or FIG. 14.
- the functional body is shown as a visible part
- the surrounding material of the enveloping body 9 is shown as a visible part.
- the rear end 22 of the functional body does not necessarily extend to the rear end 24 of the handle 2, since bending forces in the rear portion in the daily use of the toothbrush play no significant role.
- the functional body 8 thus extends at least over half or two thirds of the handle 2, starting from the thumb rest 25 in the direction of the rear end 24 of the Covering the toothbrush.
- the functional body with the front end extends at least up to a third of the thumb rest 25 to the neck portion, as shown for example in Fig. 3.
- an extension up to the bristle field or in a variant up to below the bristle field in the head area inside (not shown possible).
- the functional body 8 extends with its front end 23 over the entire neck portion 3 or at least one third of the longitudinal extent.
- the toothbrush with one of the above functional bodies is preferably prepared as follows.
- the functional body as a metal part or plastic body, in particular as already described above, e.g. punched or sprayed, manufactured.
- the functional body is placed in an injection mold and fixed.
- the functional body is encapsulated with one or more plastic components of the enveloping body in the tool.
- the bristles occur after or before by one of the known methods.
- the fixation of the functional body in the tool can be done in different ways.
- the functional body in particular to the contour projecting, retaining lugs on which the fixation takes place in the injection mold. These are later removed, for example at predetermined breaking points after encapsulation with the enveloping body or overmolded with another component.
- the fixation is carried out at cutouts 27, 28, 29 and 32, which are not encapsulated by the enveloping body 9, but whose contour largely continues or completes the contour of the enveloping body. This variant is shown in FIGS. 15 to 18.
- the enveloping body 9 thus has recesses corresponding to the cutouts 27, 28, 29, 32, on which, after the encapsulation of the enveloping body 9, the functional body 8 emerges visibly and tangibly and is exposed.
- Figures 17 and 18 show schematically how the functional body 8 - in this case - by two upper and two lower holding jaws 21 is clasped and fixed. The holding jaws are integrated into the injection molding process as part of the injection molding tool. In a further sub-variant, the recesses are overmolded and filled with another component.
- the functional body 8 for this purpose in particular at its Endab- cut, not as lying in the longitudinal plane of symmetry 7, but on both sides of the envelope body supporting, for example, be formed wavy or meandering.
- the cross sections of Figures 10.1 to 10.13 favor such support in the tool.
- the toothbrush can also be used in a tool concept with directly successive injection steps, e.g. with a turning tool.
- the functional body in the neck 3 and handle portion 2 is predominantly edgewise coplanar to the longitudinal symmetry plane and provided in the head rotated by 90 degrees, so that a fixation on the side surfaces of the head tool section is possible.
- the function carrier shown in the figures is in a vertical extent Y (see Figure 2) in the longitudinal plane of symmetry 7 to 0 to 2 mm, in particular to 0.05 to 1, 5 mm, in particular to 0.1 to 1 mm and in particular to 0.4 over-injected to 0.8 mm from the enveloping body 9.
- the functional body of the Zahnbürstenober- and underside is barely covered (except for any exemptions).
- the functional body 8 - predominantly or almost or completely - to the side surfaces or side edges or in the transverse direction X (see Figure 1) to the longitudinal axis of the toothbrush 6 with a distance wrapped or molded around each side 2 to 15 mm, in particular 2 to 6 mm.
- the functional body extends only in particular over less than 5 to 15% of the total extension from side to side of the toothbrush.
- unusual toothbrush geometries can be realized, with a total of slim enveloping body, which is predominantly slimmer in Y extension in the handle portion 2 as in the transverse direction X thereto. It also Taillierept in the grip area and or in the neck area in an otherwise no longer executable manner can be implemented (see Figures 1 and 2) without jeopardizing the stability of the toothbrush.
Landscapes
- Brushes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007019908A DE102007019908A1 (de) | 2007-04-27 | 2007-04-27 | Vorrichtung zur Zahn- und/oder Mundreinigung |
PCT/EP2008/003444 WO2008131958A1 (de) | 2007-04-27 | 2008-04-28 | Vorrichtung zur zahn- und/oder mundreinigung und verfahren zur herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2150147A1 true EP2150147A1 (de) | 2010-02-10 |
EP2150147B1 EP2150147B1 (de) | 2018-02-28 |
Family
ID=39643751
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08735403.1A Active EP2150147B1 (de) | 2007-04-27 | 2008-04-28 | Vorrichtung zur zahn- und/oder mundreinigung und verfahren zur herstellung |
EP08749208A Withdrawn EP2150148A1 (de) | 2007-04-27 | 2008-04-28 | Vorrichtung zur zahn- und/oder mundreinigung |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08749208A Withdrawn EP2150148A1 (de) | 2007-04-27 | 2008-04-28 | Vorrichtung zur zahn- und/oder mundreinigung |
Country Status (9)
Country | Link |
---|---|
US (2) | US8458846B2 (de) |
EP (2) | EP2150147B1 (de) |
CN (2) | CN101668452B (de) |
CA (2) | CA2685693A1 (de) |
DE (1) | DE102007019908A1 (de) |
HK (2) | HK1139570A1 (de) |
MX (2) | MX2009011597A (de) |
RU (2) | RU2009137209A (de) |
WO (2) | WO2008131958A1 (de) |
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DE202009003421U1 (de) | 2009-03-10 | 2009-05-20 | Molitor, Wilfried Ernst | Elektrische Zahnbürste |
US8549691B2 (en) | 2009-12-18 | 2013-10-08 | Colgate-Palmolive Company | Oral care implement having multi-component handle |
EP3269272B1 (de) | 2009-12-18 | 2020-09-16 | Colgate-Palmolive Company | Mundpflegevorrichtung mit griff aus mehreren bestandteilen |
ES2379170B1 (es) | 2011-06-17 | 2012-12-18 | Fernando Miñano Fernández | Autolimpiador buco-dental por mascada. |
US9603685B2 (en) * | 2013-09-09 | 2017-03-28 | LeedTech Resources Company, LLC | Method of manufacturing an interdental cleaner |
CN107072387B (zh) * | 2014-11-10 | 2019-09-17 | 高露洁-棕榄公司 | 具有光透射手柄的牙刷 |
US11291293B2 (en) | 2014-12-23 | 2022-04-05 | Colgate-Palmolive Company | Oral care implement |
WO2016105368A1 (en) | 2014-12-23 | 2016-06-30 | Colgate-Palmolive Company | Oral care implement having multi-component handle |
CA2970622C (en) | 2014-12-23 | 2022-05-24 | Colgate-Palmolive Company | Oral care implement |
CN113303584A (zh) | 2014-12-23 | 2021-08-27 | 高露洁-棕榄公司 | 口腔护理器具 |
EP3622853B1 (de) | 2014-12-23 | 2021-08-04 | Colgate-Palmolive Company | Mundpflegevorrichtung |
USD780457S1 (en) | 2014-12-23 | 2017-03-07 | Colgate-Palmolive Company | Oral care implement |
CN111067240B (zh) | 2014-12-23 | 2022-05-27 | 高露洁-棕榄公司 | 具有多部件柄部的口腔护理器具 |
EP3223652B1 (de) | 2014-12-23 | 2021-07-21 | Colgate-Palmolive Company | Mundpflegevorrichtung mit mehrkomponentigem griff |
WO2016105372A1 (en) | 2014-12-23 | 2016-06-30 | Colgate-Palmolive Company | Oral care implement |
CN110547589B (zh) | 2014-12-23 | 2021-07-16 | 高露洁-棕榄公司 | 口腔护理器具 |
EP3223658B1 (de) | 2014-12-23 | 2022-09-07 | Colgate-Palmolive Company | Mundpflegevorrichtung |
CN110432643B (zh) | 2014-12-23 | 2021-07-16 | 高露洁-棕榄公司 | 口腔护理器具 |
US9802347B2 (en) | 2015-02-02 | 2017-10-31 | Colgate-Palmolive Company | Method of forming an oral care implement |
CN204812617U (zh) | 2015-03-27 | 2015-12-02 | 高露洁-棕榄公司 | 牙刷 |
TWD176249S (zh) * | 2015-03-27 | 2016-06-11 | 美國棕欖公司 | 口腔保健用具 |
TWD176556S (zh) * | 2015-06-30 | 2016-06-21 | 韓國迪奧科技有限公司 | 牙刷 |
USD776937S1 (en) | 2015-07-23 | 2017-01-24 | Colgate-Palmolive Company | Oral care implement |
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USD851406S1 (en) * | 2016-08-11 | 2019-06-18 | M+C Schiffer Gmbh | Toothbrush |
EP3387946B1 (de) | 2017-04-10 | 2023-05-24 | The Gillette Company LLC | Mundpflegevorrichtung und verfahren zur herstellung solch einer mundpflegevorrichtung |
US10631964B2 (en) | 2017-12-12 | 2020-04-28 | Colgate-Palmolive Company | Oral care implement |
US10709533B2 (en) | 2017-12-12 | 2020-07-14 | Colgate-Palmolive Company | Oral care implement and handle and refill head thereof |
USD846883S1 (en) | 2017-12-12 | 2019-04-30 | Colgate-Palmolive Company | Handle of an oral care implement |
USD891784S1 (en) | 2018-12-18 | 2020-08-04 | Colgate-Palmolive Company | Electric toothbrush handle |
JP7370179B2 (ja) * | 2019-06-28 | 2023-10-27 | ライオン株式会社 | 歯ブラシ |
USD960582S1 (en) | 2020-12-10 | 2022-08-16 | Colgate-Palmolive Company | Oral care refill head |
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2007
- 2007-04-27 DE DE102007019908A patent/DE102007019908A1/de not_active Withdrawn
-
2008
- 2008-04-28 MX MX2009011597A patent/MX2009011597A/es unknown
- 2008-04-28 EP EP08735403.1A patent/EP2150147B1/de active Active
- 2008-04-28 US US12/597,608 patent/US8458846B2/en active Active
- 2008-04-28 US US12/598,558 patent/US20100299858A1/en not_active Abandoned
- 2008-04-28 WO PCT/EP2008/003444 patent/WO2008131958A1/de active Application Filing
- 2008-04-28 CN CN2008800138226A patent/CN101668452B/zh active Active
- 2008-04-28 WO PCT/EP2008/003445 patent/WO2008131959A1/de active Application Filing
- 2008-04-28 RU RU2009137209/12A patent/RU2009137209A/ru unknown
- 2008-04-28 MX MX2009011596A patent/MX2009011596A/es unknown
- 2008-04-28 EP EP08749208A patent/EP2150148A1/de not_active Withdrawn
- 2008-04-28 CN CN200880013871XA patent/CN101668453B/zh not_active Expired - Fee Related
- 2008-04-28 CA CA002685693A patent/CA2685693A1/en not_active Abandoned
- 2008-04-28 CA CA002685392A patent/CA2685392A1/en not_active Abandoned
- 2008-04-28 RU RU2009136471/12A patent/RU2009136471A/ru not_active Application Discontinuation
-
2010
- 2010-06-09 HK HK10105658.0A patent/HK1139570A1/xx not_active IP Right Cessation
- 2010-06-09 HK HK10105681.1A patent/HK1139571A1/xx not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2008131958A1 * |
Also Published As
Publication number | Publication date |
---|---|
CA2685392A1 (en) | 2008-11-06 |
CA2685693A1 (en) | 2008-11-06 |
HK1139571A1 (en) | 2010-09-24 |
WO2008131958A1 (de) | 2008-11-06 |
RU2009137209A (ru) | 2011-06-10 |
WO2008131959A1 (de) | 2008-11-06 |
CN101668453A (zh) | 2010-03-10 |
CN101668452A (zh) | 2010-03-10 |
MX2009011597A (es) | 2009-11-10 |
US20100299858A1 (en) | 2010-12-02 |
DE102007019908A1 (de) | 2008-10-30 |
CN101668453B (zh) | 2013-03-13 |
HK1139570A1 (en) | 2010-09-24 |
MX2009011596A (es) | 2009-11-10 |
US20100125960A1 (en) | 2010-05-27 |
EP2150147B1 (de) | 2018-02-28 |
US8458846B2 (en) | 2013-06-11 |
RU2009136471A (ru) | 2011-06-10 |
EP2150148A1 (de) | 2010-02-10 |
CN101668452B (zh) | 2012-07-18 |
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