EP2229841B1 - Toothbrush - Google Patents
Toothbrush Download PDFInfo
- Publication number
- EP2229841B1 EP2229841B1 EP09003870.4A EP09003870A EP2229841B1 EP 2229841 B1 EP2229841 B1 EP 2229841B1 EP 09003870 A EP09003870 A EP 09003870A EP 2229841 B1 EP2229841 B1 EP 2229841B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- handle
- neck
- opening
- toothbrush according
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004033 plastic Substances 0.000 claims description 39
- 210000003813 thumb Anatomy 0.000 claims description 30
- 210000003205 muscle Anatomy 0.000 claims description 17
- 210000003811 finger Anatomy 0.000 claims description 4
- 230000001680 brushing effect Effects 0.000 description 11
- 238000005452 bending Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 6
- 239000000806 elastomer Substances 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 210000005224 forefinger Anatomy 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 2
- 210000003414 extremity Anatomy 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
-
- 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
-
- 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
- A46B15/0004—Arrangements for enhancing monitoring or controlling the brushing process with a controlling means
- A46B15/0012—Arrangements for enhancing monitoring or controlling the brushing process with a controlling means with a pressure controlling device
-
- 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
- A46B5/0066—Flexible resilience by elastic deformation of the material
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
- A46B5/02—Brush bodies; Handles integral with brushware specially shaped for holding by the hand
- A46B5/026—Grips or handles having a nonslip section
-
- 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 toothbrush according to the preamble of claim 1.
- Toothbrushes which have a transverse to the toothbrush bristles opening in the neck in the neck. This opening should usually allow a better adaptability of the toothbrush head to the dental care process in the mouth. This results due to the smaller cross sections in the neck area, a higher elasticity and thus better but more sudden compliance of the brush head. Disadvantageously, however, it has been shown that in these known toothbrushes a controlled guidance of the head in the mouth is very difficult. This is especially true in a brushing technique according to the Bass method and in other methods in which forces are exerted on the head in different axial directions during cleaning.
- a toothbrush of the type mentioned is known.
- two longitudinal slots are left in a first hard component of the toothbrush neck, which are filled in a second injection molding step with an elastomer component.
- the elastomer component can form depressions on the top of the neck.
- Another toothbrush with an elastomeric component in the neck to head transition area is from the EP-A1-0648448 known.
- the flexibility of the neck and the head can be positively influenced.
- an elastic muscle which is provided at a portion of a boundary wall of the opening to selectively thrust or To absorb tensile forces.
- the elastic muscle does not give rise to sudden yielding of the head and neck when a force is exerted on the head.
- the elastic muscle in combination with the adjacent opening in the neck allows a very controlled modulation of the flexibility of the neck in predefined axial directions.
- the elastic muscle is formed by a third soft plastic component.
- a soft plastic component such as. As a thermoplastic elastomer is compressed or stretched, without causing cracking, which further ensures good manufacturability of the toothbrush in the multi-component injection molding process.
- the soft plastic component can thus cushion forces exerted on the boundary wall of the opening during tooth brushing, thus providing a greater tolerance range of controlled elastic deformation of the neck during tooth brushing.
- the third soft plastic component is identical to the first soft plastic component. This reduces tool complexity in the multi-component injection molding process.
- the third soft plastic component is directly connected to the first soft plastic component or connected thereto via a connecting channel.
- the third soft plastic component may be formed completely delimited by the first soft plastic component in the handle of the toothbrush, so that the third soft plastic component or the elastic muscle is directly surrounded only by the hard plastic component of the neck.
- the opening is enclosed by two lateral, a front adjacent to the head and a rear adjacent to the handle arranged boundary wall, wherein only on one of the lateral, front or rear boundary wall of the elastic muscle is provided.
- the elasticity characteristic provided by the hard plastic component in the neck still dominates around the opening, whereby an increased elasticity around the opening is specifically provided on one of the stress sides of the boundary wall around the opening.
- the opening is formed such that it is 1.5 to 7 mm wide between two lateral boundary walls.
- the opening width can vary over the longitudinal extent of the toothbrush neck or remain substantially constant.
- the opening between the front and the rear boundary wall 10 to 35 mm long. Through these dimensions of the Opening is thus given a strong influence on the consequent bending elasticity of the neck.
- the opening has a substantially triangular or oval cross-section.
- a triangular longitudinal extent of the opening provides an approximately uniform cross-section of the side limbs laterally on the neck adjacent to the opening, in the event that the neck outer cross-section is also ascending in a direction from the head to the handle with the cross-section of the opening.
- the opening in the neck extends in the same direction as at least part of the attachment openings for the oral care elements in the head. Since the attachment openings for oral care elements in the head are usually aligned vertically upward, z. B. in the form of Bestopfungsaus traditions for toothbrush tufts, the opening in the neck has an equally vertical extension.
- an advantageous neck elasticity is adjustable, but also given the same demolding direction for the injection mold inserts for the openings manufacturing technology. Thus, the tool complexity of the injection molding tool is thus kept low.
- the opening in the neck also extends in the same direction as a structure openings (possibly filled by an elastomer) in the hard component basic structure of the handle, so that the tool handling advantages are also given in this vertical direction.
- the same alignment of the structural openings in the handle with the orientation of the opening in the neck standardizes the vertical and horizontal bending behavior of the neck with the handle.
- an increased bending of the neck is initiated under load when brushing teeth in the adjacent region of the handle, so that in the transition region between the neck and handle under heavy stress no increased stresses, because this front grip area is also designed to be yielding in the same direction.
- the user receives directly in the area where the toothbrush is held a sensory feedback on an increased bending load on the neck, because the handle bends in the thumb rest with and thus the user can correct his selected contact force during brushing accordingly.
- the opening in the neck is aligned transversely to the attachment openings for the oral care elements in the head.
- Such a training of Opening offers a changed, usually stiffer flexural elasticity in the transverse direction to the mounting holes.
- the increased stresses of the side legs or Begrenzungswandungen laterally to the opening in the neck is advantageously absorbed by an elastic muscle in these side legs.
- the handle of the toothbrush is designed such that its elastic flexibility in a region between the thumb rest and index finger rest adjacent to the neck in a vertical direction is at least 50% greater than its bendability in a direction rotated by 90 ° transversely thereto the side of the handle at the same point of the longitudinal extension of the handle.
- the thumb rest is provided at the top of the handle adjacent to the neck and the index finger rest at the opposite bottom of the handle also adjacent to the neck. Adjacent to the neck means up to an extension of 3 or 4 cm from the transition of the neck to the handle.
- a comparable bending characteristic is thus provided for the front grip area around the thumb rest and forefinger rest around as it is preferably provided for the neck, with which the flexibility in the vertical direction is substantially greater than the bendability in the lateral direction.
- the bendability of the handle in the front area around the thumb rest and forefinger rest or about a center of the thumb rest in the vertical direction is preferably greater by 50 to 1000% or 100 to 500% than in a direction rotated by 90 ° transversely across the side of the Handle at the same point of the length of the handle.
- Such a bending characteristic can be achieved, for example, by continuing the side limbs or boundary walls of the opening in the neck of hard plastic laterally into the front grip area and / or providing openings in the front grip area in the basic structure of the hard plastic, which are provided, for example, by a soft elastomer can be completed. So there are structure openings in the basic structure of the hard plastic component of the toothbrush provided in the same direction, in particular as the opening of the neck is aligned, so that a good bendability of the handle is given in the thumb rest.
- the handle is designed such that its elastic flexibility in the vertical direction in an area between the thumb rest and forefinger rest adjacent to the neck is at least 50% greater than its flexibility in the same vertical direction in a central portion of the handle, midway between the free rear end and the front end of the handle adjacent to the neck.
- the middle and hingriffriff preferably remains relatively stiffer on all sides, so that the toothbrush as a whole can be well controlled during tooth brushing.
- the toothbrush advantageously has an elastic bendability (when brushing teeth) in the vertical direction about the center of the neck, which is greater than the elastic flexibility in the vertical direction of the handle also around the center of the thumb rest at the front end of the handle adjacent to the neck.
- the neck is formed in the vertical direction more elastic than the adjacent handle portion, wherein preferably a continuous transition of the elastic flexibility of neck is provided in the handle in the vertical direction of bending.
- the toothbrush further advantageously has an increased elastic flexibility in the vertical direction of a portion of the head relative to an elastic flexibility in the vertical direction about the center of the neck.
- the elastic flexibility is not limited to the head or neck .
- the thumb rest of the handle is formed on its upper side such that the thumb can be supported in sections of the basic structure.
- the thumb rest is formed by the first soft plastic component and the basic structure. Due to the arrangement of several sections of the basic structure in the region of the thumb rest over its longitudinal extent, the thumb rest can be pressed in with the thumb only between 0 and 3 mm. Thus, the thumb does not / hardly sinks into the thumb pad during tooth brushing, which gives good control of the toothbrush.
- the Figures 1 and 2 show a first embodiment of the toothbrush.
- This has a handle 2, a neck 3 and a head 4.
- the toothbrush consists of three plastic components.
- a basic structure 5 made of hard plastic, such. B. polypropylene.
- the basic structure 5 is associated with the FIGS. 4 and 5 explained in more detail.
- a first soft plastic component 6 is provided on the handle 2 and also on the neck as an elastic muscle 7.
- the head consists of a central support 8 which forms an extension of the basic structure 5 towards the front end of the toothbrush.
- a further part of the brush head 4 is attached in the region of the free end 9 of the head.
- the attachment of the further part is preferably carried out by injection molding on the central support 8 at the position 9.
- the further component of the brush head 4 is formed by a relative to the middle part 8 resilient outer bristle carrier 10.
- the outer carrier 10 comprises an elastomer / polypropylene mixture.
- the bristle carrier 10 is in the embodiment of the FIGS. 1 and 2 approximately U-shaped, with the free u-leg ends 11 facing the neck and handle. Either the middle carrier 8 and the carrier 10 are equipped with oral care elements.
- all bristle carriers 8 and 10 are provided with filament bristle tufts 12.
- additional or exclusive elastomer cleaning elements or other oral care elements may be provided.
- the filament bristle tufts 12 are fastened or encapsulated in fastening openings or recesses of the central support 8 and the U-shaped support 10. These attachment openings 13 are aligned substantially vertically.
- the figures show a bristle configuration in which tufts of bristle cross over from the side perspective. For simplicity's sake, it is assumed here that the corresponding fastening openings are aligned vertically upwards despite their oblique arrangement.
- the corresponding vertical axis 14 is in Fig. 2 shown. All references to a vertical orientation in the description are parallels to this vertical axis 14.
- the brush head 4 can according to the embodiments in the US 2008/0184511 A1 be educated. This relates above all to the mode of action of the outer movable bristle segments to the inner bristle segment, the bristle or training with oral care elements and the variations thereto.
- the neck 3 has an approximately triangular-shaped through-going opening, which breaks through the neck 3 freely from an upper side of the toothbrush 16 to an underside of the toothbrush 17.
- the opening 15 in the neck 3 is enclosed by four boundary walls.
- the elastic muscle 7 is part of the first soft plastic component 6 of the handle 2 and is preferably formed of thermoplastic elastomer.
- a longitudinal axis 22 of the toothbrush is defined as the crossing axis between the vertical and horizontal longitudinal central planes of the handle. This axis 22 extends from the rear free end of the handle 23 to the front free end 9 of the head 4.
- the vertical axis 14 is perpendicular to the longitudinal axis 22 and passes through the vertical center plane from the top 16 to the bottom 17 of the toothbrush.
- Perpendicular to the longitudinal axis 22 is also the horizontal transverse axis 24, which lies in a horizontal plane of the toothbrush. Any reference to a transverse or horizontal direction on the toothbrush in this description represents a parallel to the axis 24.
- the handle 2 is injection molded from two components, but may alternatively be used in 3-component Hart as an alternative to 2-component hard / soft - Hard / soft or in hard / soft / soft plastic execution are injected.
- the handle has a thumb rest 27 on the upper side 16 of the toothbrush between a front plane 25 defining the forward end of the handle 2 adjacent the neck and a plane approximately 3 or 4 cm parallel rearwardly toward the rear end of the toothbrush Handle and a forefinger rest 28 on the bottom 17 of the handle.
- the surface of the thumb rest 27 is formed both by the hard plastic of the basic structure and by the first soft plastic of the handle. The hard plastic emerges in several rings on the surface of the thumb rest 27.
- the small diameter of the hard plastic rings and the small distances of the rings to each other from about 2 to 6 mm have the consequence that the thumb always rests on the hard plastic structure of the rings.
- the soft plastic is thus in the area of the thumb rest not or only max. a few mm such. B. 2 to 3 mm pressed.
- the basic structure 5 has a plurality of structure openings 29 whose center axes run parallel to the vertical 14.
- the structure openings 29 in the basic structure 5 are filled by the first soft plastic component 6.
- the structure openings 29 filled with elastomeric plastic by the continuation of the side legs 19 and 20 of the lateral boundary walls of the opening of the neck to the side walls 30 and 31 made of hard plastic on the handle 2, a specific characteristic of the elastic flexibility of the toothbrush on the longitudinal axis 22 results.
- the elastic compliance is greatest in the head region and there especially in the outer straps 10.
- An arrow 32 in Fig. 2 shows a corresponding location in the brush head with great elastic flexibility.
- the elastic flexibility is also in the vertical direction in the neck area due to the opening 15 and the elastic muscle 7 continues to be very large (see arrow 33 in FIG Fig. 3 for an apply force) but lower compared to the elasticity of the head carrier segments.
- the neck in turn is elastically deflectable in the vertical direction by a force at the point 33 in the middle of the neck applied in the vertical direction than when applying an equal force in the middle of the thumb rest 27 (see arrow 34 in FIG Fig. 2 ).
- the vertical elastic compliance in the area of the thumb rest is relative to a resilient compliance in the vertical direction in the center of the handle (see arrow 35 for an exemplary applied force in FIG Fig. 2 ) at least 50% greater than the elastic bendability in the middle 35 of the handle.
- the elastic compliance in the area of the thumb rest 34 in the vertical direction is at least 50% greater than the elastic compliance in a transverse direction thereto (see transverse force 36 in FIG Fig. 1 ).
- the modified embodiment according to the FIGS. 3, 4 and 5 differs from the embodiment in the FIGS. 1 and 2 essentially in that the opening 15 in the neck is formed somewhat shorter longitudinally along the axis 22.
- FIGS. 6 and 7 show an alternative embodiment of the toothbrush after the FIGS. 1 to 5 , wherein a difference in a 90 ° rotated orientation of the opening 37 consists.
- the opening 37 extends with an approximately horizontal or slightly inclined to the horizontal plane which extends transversely to the longitudinal axis 22.
- An upper side leg is provided with an elastic muscle 38 which either covers the hard plastic of the neck also at this point to provide a somewhat reduced neck elasticity or replace the hard plastic at this point to provide increased elasticity of the head in the vertical direction.
- the elastic muscle is in the FIGS. 6 and 7 at the top, ie on the same side on which the tooth cleaning elements are mounted provided.
- the elastic muscle 38 may be laterally disposed on one of the three other boundary walls, front, back, or bottom, to otherwise tune the elasticity and flexibility of the brush head during brushing.
- the FIGS. 6 and 7 show the head and the handle only schematically simplified, alternatively, also for the embodiment of the FIGS. 6 and 7 the brush head after the FIGS. 1 to 3 be provided and the handle on the FIGS. 1 to 3 ,
Landscapes
- Brushes (AREA)
Description
Die vorliegende Erfindung betrifft eine Zahnbürste nach dem Oberbegriff des Anspruchs 1.The present invention relates to a toothbrush according to the preamble of claim 1.
Aus der
Aus der
Aus der
Es ist eine Aufgabe der vorliegenden Erfindung eine Zahnbürste der eingangs genannten Art bereit zu stellen, die einerseits besonders ergonomisch und andererseits weiterhin zu einem kontrollierten Zahnputzvorgang genutzt werden kann.It is an object of the present invention to provide a toothbrush of the type mentioned above, which on the one hand can be used particularly ergonomically and, on the other hand, continues to be used for a controlled tooth brushing operation.
Diese Aufgabe wird durch eine Zahnbürste mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a toothbrush having the features of claim 1.
Durch die Ausbildung einer Öffnung im Hals der Zahnbürste, deren Grundstruktur durch eine Hartkunststoffkomponente gebildet ist, kann die Nachgiebigkeit des Halses und auch des Kopfes positiv beeinflusst werden. Um diese Nachgiebigkeit in den für die Putztechnik relevanten Achsrichtungen des Kopfes zu verbessern dient ein elastischer Muskel, der an einem Abschnitt einer Begrenzungswandung der Öffnung vorgesehen ist, um gezielt Schub- oder Zugkräfte aufzunehmen. Außerdem ergibt sich durch den elastischen Muskel keine zu sprunghafte Nachgiebigkeit des Kopfes und des Halses, wenn auf den Kopf eine Kraft ausgeübt wird. Der elastische Muskel in Kombination mit der angrenzenden Öffnung im Hals erlaubt eine sehr kontrollierte Modulation der Biegsamkeit des Halses in vordefinierten Achsrichtungen.By forming an opening in the neck of the toothbrush whose basic structure is formed by a hard plastic component, the flexibility of the neck and the head can be positively influenced. In order to improve this flexibility in the relevant for the cleaning technique axial directions of the head is an elastic muscle, which is provided at a portion of a boundary wall of the opening to selectively thrust or To absorb tensile forces. In addition, the elastic muscle does not give rise to sudden yielding of the head and neck when a force is exerted on the head. The elastic muscle in combination with the adjacent opening in the neck allows a very controlled modulation of the flexibility of the neck in predefined axial directions.
In weiterer vorteilhafter Ausbildung ist der elastische Muskel durch eine dritte Weichkunststoffkomponente ausgebildet. Eine Weichkunststoffkomponente wie z. B. ein thermoplastisches Elastomer wird gestaucht oder gedehnt, ohne dass es zur Rissbildung kommt, wobei weiterhin eine gute Herstellbarkeit der Zahnbürste im Mehrkomponentenspritzgussverfahren gewährleistet ist. Die Weichkunststoffkomponente kann somit Kräfte, die an der Begrenzungswandung der Öffnung verstärkt während des Zähneputzens auftreten abfedern, so dass ein größerer Toleranzbereich der kontrollierten elastischen Verformung des Halses während des Zähneputzens bereitgestellt ist.In a further advantageous embodiment of the elastic muscle is formed by a third soft plastic component. A soft plastic component such as. As a thermoplastic elastomer is compressed or stretched, without causing cracking, which further ensures good manufacturability of the toothbrush in the multi-component injection molding process. The soft plastic component can thus cushion forces exerted on the boundary wall of the opening during tooth brushing, thus providing a greater tolerance range of controlled elastic deformation of the neck during tooth brushing.
In weiterer vorteilhafter Ausbildung ist die dritte Weichkunststoffkomponente mit der ersten Weichkunststoffkomponente identisch. Dies verringert die Werkzeugkomplexität im Mehrkomponentenspritzgiessverfahren. Die dritte Weichkunststoffkomponente ist dabei unmittelbar mit der ersten Weichkunststoffkomponente verbunden oder mit dieser über einen Verbindungskanal verbunden. Alternativ kann die dritte Weichkunststoffkomponente völlig abgegrenzt von der ersten Weichkunststoffkomponente im Griff der Zahnbürste ausgebildet sein, so dass die dritte Weichkunststoffkomponente bzw. der elastische Muskel nur von der Hartkunststoffkomponente des Halses unmittelbar umgeben ist.In a further advantageous embodiment, the third soft plastic component is identical to the first soft plastic component. This reduces tool complexity in the multi-component injection molding process. The third soft plastic component is directly connected to the first soft plastic component or connected thereto via a connecting channel. Alternatively, the third soft plastic component may be formed completely delimited by the first soft plastic component in the handle of the toothbrush, so that the third soft plastic component or the elastic muscle is directly surrounded only by the hard plastic component of the neck.
In weiterer vorteilhafter Ausbildung ist die Öffnung durch zwei seitliche, eine vordere benachbart zum Kopf und eine hinterer benachbart zum Griff angeordnete Begrenzungswandung umschlossen, wobei nur an einer der seitlichen, vorderen oder hinteren Begrenzungswandung der elastische Muskel vorgesehen ist. Damit dominiert weiterhin die durch die Hartkunststoffkomponente im Hals vorgesehene Elastizitätscharakteristik um die Öffnung herum, wobei gezielt an einer der Beanspruchungsseiten der Begrenzungswandung um die Öffnung herum eine erhöhte Elastizität um die Öffnung herum bereitgestellt wird. Dies erlaubt insbesondere die Herstellung von Zahnbürsten die für bestimmte Putztechniken optimiert werden können. Zudem ist so ein über einen längeren Bereich von Kopf, Hals und Handstück ein kontinuierlicher Flexibilitätsverlauf einstellbar.In a further advantageous embodiment, the opening is enclosed by two lateral, a front adjacent to the head and a rear adjacent to the handle arranged boundary wall, wherein only on one of the lateral, front or rear boundary wall of the elastic muscle is provided. Thus, the elasticity characteristic provided by the hard plastic component in the neck still dominates around the opening, whereby an increased elasticity around the opening is specifically provided on one of the stress sides of the boundary wall around the opening. This allows in particular the production of toothbrushes that can be optimized for certain brushing techniques. In addition, such a over a longer range of head, neck and handpiece a continuous flexibility curve is adjustable.
In weiterer vorteilhafter Ausbildung ist die Öffnung derart ausgebildet, dass diese zwischen zwei seitlichen Begrenzungswandungen 1,5 bis 7 mm breit ist. Die Öffnungsbreite kann dabei über die Längserstreckung des Zahnbürstenhalses variieren oder im Wesentlichen konstant bleiben.In a further advantageous embodiment, the opening is formed such that it is 1.5 to 7 mm wide between two lateral boundary walls. The opening width can vary over the longitudinal extent of the toothbrush neck or remain substantially constant.
In weiterer vorteilhafter Ausbildung ist die Öffnung zwischen der vorderen und der hinteren Begrenzungswandung 10 bis 35 mm lang ausgebildet. Durch diese Dimensionierungen der Öffnung ist somit ein starker Einfluß auf die damit bedingte Biegeelastizität des Halses gegeben.In a further advantageous embodiment, the opening between the front and the
In vorteilhafter Weiterbildung weist die Öffnung einen im Wesentlichen dreieckigen oder ovalen Querschnitt auf. Durch eine dreieckige Längserstreckung der Öffnung ist insbesondere ein etwa gleichmäßiger Querschnitt der Seitenschenkel seitlich am Hals benachbart zur Öffnung bereitgestellt, für den Fall, dass der Halsaußenquerschnitt in einer Richtung vom Kopf zum Griff ebenfalls mit dem Querschnitt der Öffnung ansteigend ausgebildet ist.In an advantageous embodiment, the opening has a substantially triangular or oval cross-section. In particular, a triangular longitudinal extent of the opening provides an approximately uniform cross-section of the side limbs laterally on the neck adjacent to the opening, in the event that the neck outer cross-section is also ascending in a direction from the head to the handle with the cross-section of the opening.
In weiterer vorteilhafter Ausbildung erstreckt sich die Öffnung im Hals in der Selben Richtung wie zumindest ein Teil der Befestigungsöffnungen für die Mundpflegeelemente im Kopf. Da die Befestigungsöffnungen für Mundpflegeelemente im Kopf in der Regel vertikal nach oben ausgerichtet sind, z. B. in Form von Bestopfungsausnehmungen für Zahnbürstenbüschel, weist die Öffnung im Hals eine ebenso vertikal durchgehende Erstreckung auf. Durch diese Ausbildung ist nicht nur eine vorteilhafte Halselastizität einstellbar, sondern auch herstelltechnisch die gleiche Entformungsrichtung für die Spritzgusswerkzeugeinsätze für die Öffnungen gegeben. Damit ist somit auch die Werkzeugkomplexität des Spritzgusswerkzeugs gering gehalten.In a further advantageous embodiment, the opening in the neck extends in the same direction as at least part of the attachment openings for the oral care elements in the head. Since the attachment openings for oral care elements in the head are usually aligned vertically upward, z. B. in the form of Bestopfungsausnehmungen for toothbrush tufts, the opening in the neck has an equally vertical extension. By this design, not only an advantageous neck elasticity is adjustable, but also given the same demolding direction for the injection mold inserts for the openings manufacturing technology. Thus, the tool complexity of the injection molding tool is thus kept low.
In einer weiteren vorteilhaften Ausbildung erstreckt sich die Öffnung im Hals auch in der gleichen Richtung wie eine Strukturöffnungen (ggf. durch eine Elastomer ausgefüllt) in der Hartkomponenten-Grundstruktur des Griffes, so dass auch in dieser vertikalen Richtung die Werkzeughandhabungsvorteile gegeben sind. Zudem vereinheitlicht die gleiche Ausrichtung der Strukturöffnungen im Griff mit der Ausrichtung der Öffnung im Hals das vertikale und horizontale Biegeverhalten des Halses mit dem des Griffes. Somit ist eine verstärkte Biegung des Halses unter Belastung beim Zähneputzen in den angrenzenden Bereich des Griffes eingeleitet, so dass im Übergangsbereich zwischen Hals und Griff unter starker Beanspruchung keine erhöhten Spannungen entstehen, weil dieser vordere Griffbereich ebenfalls in der gleichen Richtung nachgiebig ausgestaltet ist. Weiterhin erhält der Nutzer unmittelbar in dem Bereich, in dem die Zahnbürste gehalten wird eine sensorische Rückmeldung über eine verstärkte Biegebelastung am Hals, weil sich der Griff im Bereich der Daumenauflage mit verbiegt und somit der Nutzer seine gewählte Anpresskraft während des Zähneputzens entsprechend korrigieren kann.In a further advantageous embodiment, the opening in the neck also extends in the same direction as a structure openings (possibly filled by an elastomer) in the hard component basic structure of the handle, so that the tool handling advantages are also given in this vertical direction. In addition, the same alignment of the structural openings in the handle with the orientation of the opening in the neck standardizes the vertical and horizontal bending behavior of the neck with the handle. Thus, an increased bending of the neck is initiated under load when brushing teeth in the adjacent region of the handle, so that in the transition region between the neck and handle under heavy stress no increased stresses, because this front grip area is also designed to be yielding in the same direction. Furthermore, the user receives directly in the area where the toothbrush is held a sensory feedback on an increased bending load on the neck, because the handle bends in the thumb rest with and thus the user can correct his selected contact force during brushing accordingly.
In einer weiteren vorteilhaften Ausbildung ist die Öffnung im Hals quer zu den Befestigungsöffnungen für die Mundpflegeelemente im Kopf ausgerichtet. Eine derartige Ausbildung der Öffnung bietet eine veränderte, in der Regel steifere Biegeelastizität in Querrichtung zu den Befestigungsöffnungen. Die erhöhte Beanspruchungen der Seitenschenkel bzw. Begrenzungswandungen seitlich zur Öffnung im Hals wird vorteilhafterweise durch einen elastischen Muskel in diesen Seitenschenkeln aufgenommen.In a further advantageous embodiment, the opening in the neck is aligned transversely to the attachment openings for the oral care elements in the head. Such a training of Opening offers a changed, usually stiffer flexural elasticity in the transverse direction to the mounting holes. The increased stresses of the side legs or Begrenzungswandungen laterally to the opening in the neck is advantageously absorbed by an elastic muscle in these side legs.
In weiterer vorteilhafter Ausbildung ist der Griff der Zahnbürste derart ausgebildet, dass dessen elastische Biegbarkeit in einem Bereich zwischen Daumenablage und Zeigefingerablage, benachbart zum Hals in einer vertikalen Richtung zumindest um 50 % größer ist als dessen Biegbarkeit in einer Richtung um 90° gedreht quer dazu über die Seite des Griffes an der gleichen Stelle der Längserstreckung des Griffes. Die Daumenablage ist dabei an der Oberseite des Griffes benachbart zum Hals und die Zeigefingerablage an der gegenüberliegenden Unterseite des Griffes ebenfalls benachbart zum Hals vorgesehen. Benachbart zum Hals bedeutet dabei bis zu einer Erstreckung von 3 oder 4 cm vom Übergang des Halses zum Griff. In vorteilhafter Weise wird somit für den vorderen Griffbereich um die Daumenablage und Zeigefingerablage herum eine vergleichbare Biegecharakteristik bereitgestellt wie diese vorzugsweise für den Hals vorgesehen ist, mit der die Biegbarkeit in vertikaler Richtung wesentlich größer ist als die Biegbarkeit in seitlicher Richtung. Die Biegbarkeit des Griffes im vorderen Bereich um die Daumenablage und Zeigefingerablage herum bzw. um einen Mittelpunkt der Daumenablage in vertikaler Richtung ist vorzugsweise um 50 bis 1000 % oder 100 bis 500% größer als in eine Richtung um 90° gedreht quer dazu über die Seite des Griffes an der gleichen Stelle der Längserstreckung des Griffes. Eine solche Biegecharakteristik kann beispielsweise dadurch erzielt werden, dass die Seitenschenkel bzw. Begrenzungwandungen der Öffnung im Hals aus Hartkunststoff seitlich in den vorderen Griffbereich fortgeführt werden und/oder im vorderen Griffbereich in der Grundstruktur des Hartkunststoffes durchgehende Öffnungen vorgesehen sind, die beispielsweise durch ein weiches Elastomer ausgefüllt sein können. Es sind also Strukturöffnungen in der Grundstruktur des Hartkunststoffbestandteils der Zahnbürste in der gleichen Richtung vorgesehen, wie insbesondere die Öffnung des Halses ausgerichtet ist, so dass eine gute Verbiegbarkeit des Griffes bei der Daumenauflage gegeben ist.In a further advantageous embodiment, the handle of the toothbrush is designed such that its elastic flexibility in a region between the thumb rest and index finger rest adjacent to the neck in a vertical direction is at least 50% greater than its bendability in a direction rotated by 90 ° transversely thereto the side of the handle at the same point of the longitudinal extension of the handle. The thumb rest is provided at the top of the handle adjacent to the neck and the index finger rest at the opposite bottom of the handle also adjacent to the neck. Adjacent to the neck means up to an extension of 3 or 4 cm from the transition of the neck to the handle. Advantageously, a comparable bending characteristic is thus provided for the front grip area around the thumb rest and forefinger rest around as it is preferably provided for the neck, with which the flexibility in the vertical direction is substantially greater than the bendability in the lateral direction. The bendability of the handle in the front area around the thumb rest and forefinger rest or about a center of the thumb rest in the vertical direction is preferably greater by 50 to 1000% or 100 to 500% than in a direction rotated by 90 ° transversely across the side of the Handle at the same point of the length of the handle. Such a bending characteristic can be achieved, for example, by continuing the side limbs or boundary walls of the opening in the neck of hard plastic laterally into the front grip area and / or providing openings in the front grip area in the basic structure of the hard plastic, which are provided, for example, by a soft elastomer can be completed. So there are structure openings in the basic structure of the hard plastic component of the toothbrush provided in the same direction, in particular as the opening of the neck is aligned, so that a good bendability of the handle is given in the thumb rest.
In weiterer vorteilhafter Ausbildung ist der Griff derart ausgebildet, dass dessen elastische Biegbarkeit in vertikaler Richtung in einem Bereich zwischen Daumenablage und Zeigefingerablage benachbart zum Hals zumindest um 50 % größer ist als dessen Biegbarkeit in der gleichen vertikalen Richtung in einem mittleren Abschnitt des Griffes, mittig zwischen dem freien hinteren Ende und dem vorderen Ende des Griffes benachbart zum Hals. Somit wird zwar die Elastizität des Halses in den vorderen Griffbereich eingeleitet, der mittlere und hinGriffbereich bleibt jedoch vorzugsweise nach allen Seiten dazu relativ steifer, so dass die Zahnbürste insgesamt gut während des Zähneputzens kontrolliert werden kann.In a further advantageous embodiment, the handle is designed such that its elastic flexibility in the vertical direction in an area between the thumb rest and forefinger rest adjacent to the neck is at least 50% greater than its flexibility in the same vertical direction in a central portion of the handle, midway between the free rear end and the front end of the handle adjacent to the neck. Thus, while the elasticity of the neck is introduced into the front grip area, the middle and hingriffriff however, preferably remains relatively stiffer on all sides, so that the toothbrush as a whole can be well controlled during tooth brushing.
Dieser Aspekt kann auch unabhängig von den zuvor genannten Aspekten bzw. in beliebiger Kombination von zuvor genannten Einzelmerkmalen vorgesehen sein. Dies gilt auch für die folgenden vorteilhaften Ausführungen, die ebenfalls unabhängig von den anderen Ausführungsmerkmalen beanspruchbar sind.This aspect can also be provided independently of the aforementioned aspects or in any combination of the aforementioned individual features. This also applies to the following advantageous embodiments, which are also claimable independently of the other design features.
Die Zahnbürste weist vorteilhafterweise eine elastische Biegbarkeit (beim Zähneputzen) in vertikaler Richtung um die Mitte des Halses auf, die größer ist als die elastische Biegbarkeit in vertikaler Richtung des Griffes ebenfalls um die Mitte der Daumenablage am vorderen Ende des Griffes benachbart zum Hals. Somit ist der Hals in vertikaler Richtung elastischer ausgebildet als der benachbarte Griffabschnitt, wobei vorzugsweise ein kontinuierlicher Übergang der elastischen Biegbarkeit von Hals in den Griff in vertikaler Biegungsrichtung vorgesehen ist.The toothbrush advantageously has an elastic bendability (when brushing teeth) in the vertical direction about the center of the neck, which is greater than the elastic flexibility in the vertical direction of the handle also around the center of the thumb rest at the front end of the handle adjacent to the neck. Thus, the neck is formed in the vertical direction more elastic than the adjacent handle portion, wherein preferably a continuous transition of the elastic flexibility of neck is provided in the handle in the vertical direction of bending.
Die Zahnbürste weist in vorteilhafter Ausbildung weiterhin eine vergrößerte elastische Biegbarkeit bzw. Verformung in vertikaler Richtung eines Abschnittes des Kopfes auf relativ zu einer elastischen Biegbarkeit in vertikaler Richtung um die Mitte des Halses. Somit ist vom Kopf zum Hals und zum vorderen Teil des Griffes und auch bis zur Mitte des Griffes ein kontinuierlicher Anstieg der Steifigkeit des Zahnbürstenkörpers von vorne nach hinten gegeben, wobei sich abweichend vom Stand der Technik die elastische Biegbarkeit nicht auf den Kopf oder den Hals beschränkt.The toothbrush further advantageously has an increased elastic flexibility in the vertical direction of a portion of the head relative to an elastic flexibility in the vertical direction about the center of the neck. Thus, from the head to the neck and the front part of the handle and also to the middle of the handle there is a continuous increase in the stiffness of the toothbrush body from the front to the rear, deviating from the prior art, the elastic flexibility is not limited to the head or neck ,
In weiterer vorteilhafter Ausbildung der Zahnbürste ist die Daumenauflage des Griffes an dessen Oberseite derart ausgebildet, dass der Daumen in Abschnitten der Grundstruktur abstützbar ist. Die Daumenauflage ist durch die erste Weichkunststoffkomponente und die Grundstruktur gebildet. Durch die Anordnung von mehreren Abschnitten der Grundstruktur im Bereich der Daumenauflage über dessen Längserstreckung ist die Daumenauflage an sich mit dem Daumen nur zwischen 0 und 3 mm eindrückbar. Somit sinkt der Daumen nicht/kaum während des Zähneputzens in die Daumenauflage ein, wodurch eine gute Kontrollierbarkeit der Zahnbürste gegeben ist.In a further advantageous embodiment of the toothbrush, the thumb rest of the handle is formed on its upper side such that the thumb can be supported in sections of the basic structure. The thumb rest is formed by the first soft plastic component and the basic structure. Due to the arrangement of several sections of the basic structure in the region of the thumb rest over its longitudinal extent, the thumb rest can be pressed in with the thumb only between 0 and 3 mm. Thus, the thumb does not / hardly sinks into the thumb pad during tooth brushing, which gives good control of the toothbrush.
Weitere Ziele, Vorteile, Merkmale und Anwendungsmöglichkeiten der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen anhand der Zeichnungen. Dabei bilden alle beschriebenen und/oder bildlich dargestellten Merkmale für sich oder in beliebiger sinnvoller Kombination den Gegenstand der vorliegenden Erfindung auch unabhängig von ihrer Zusammenfassung in Ansprüchen oder deren Rückbeziehung.Other objects, advantages, features and applications of the present invention will become apparent from the following description of exemplary embodiments with reference to the drawings. All described and / or illustrated features form in itself or in any meaningful combination, the subject matter of the present invention also regardless of their summary in claims or their dependency.
Es zeigen:
- Fig. 1
- eine Draufsicht auf die Zahnbürste nach der Erfindung,
- Fig. 2
- eine Seitenansicht auf die Zahnbürste nach
Fig. 1 , - Fig. 3
- eine räumliche Darstellung einer zu
Fig. 1 leicht modifizierten Ausführungsform, - Fig. 4
- eine räumliche Darstellung auf die Grundstruktur der Zahnbürste nach
Fig. 3 , - Fig. 5
- eine Längsschnittdarstellung entlang der Linie A-A in
Fig. 4 , - Fig. 6
- eine Seitenansicht eines Teils einer weiteren alternativen Ausführungsform zur Zahnbürste nach
Fig. 1 , und - Fig. 7
- eine Draufsicht auf den Teil der Zahnbürste nach
Fig. 6 .
- Fig. 1
- a top view of the toothbrush according to the invention,
- Fig. 2
- a side view of the toothbrush behind
Fig. 1 . - Fig. 3
- a spatial representation of an
Fig. 1 slightly modified embodiment, - Fig. 4
- a spatial representation of the basic structure of the toothbrush
Fig. 3 . - Fig. 5
- a longitudinal sectional view along the line AA in
Fig. 4 . - Fig. 6
- a side view of part of a further alternative embodiment of the toothbrush according to
Fig. 1 , and - Fig. 7
- a plan view of the part of the toothbrush after
Fig. 6 ,
Die
Der Kopf besteht aus einem mittleren Träger 8, der einen Fortsatz der Grundstruktur 5 zum vorderen Ende der Zahnbürste hin bildet. Im Bereich des freien Endes 9 des Kopfes ist ein weiterer Teil des Bürstenkopfes 4 befestigt. Die Befestigung des weiteren Teils erfolgt vorzugsweise durch Anspritzen an dem mittleren Träger 8 an der Position 9. Der weitere Bestandteil des Bürstenkopfes 4 ist durch ein relativ zum mittleren Teil 8 nachgiebigen äußeren Borstenträger 10 gebildet. Der äußere Träger 10 weist ein Elastomer/Polypropylen Gemisch auf. Der Borstenträger 10 ist in der Ausführungsform nach den
Der Bürstenkopf 4 kann entsprechend den Ausführungsformen in der
Der Hals 3 weist eine etwa im Schnitt dreieckförmige durchgehende Öffnung auf, die von einer Oberseite der Zahnbürste 16 bis zu einer Unterseite der Zahnbürste 17 den Hals 3 frei durchbricht. Die Öffnung 15 im Hals 3 ist von vier Begrenzungswandungen umschlossen. Einer vorderen Begrenzungswandung 18 benachbart zum Kopf, zwei seitlichen Begrenzungswandungen 19 und 20, die auch Seitenschenkel des Halses an der Öffnung bilden und einer hinteren Begrenzungswandung 21, die in der Ausführungsform nach
Der elastische Muskel 7 ist Teil der ersten Weichkunststoffkomponente 6 des Griffes 2 und ist vorzugsweise aus thermoplastischem Elastomer gebildet.The elastic muscle 7 is part of the first
Im Zusammenhang mit allen Ausführungsformen wird eine Längsachse 22 der Zahnbürste definiert als die Kreuzungsachse zwischen den vertikalen und horizontalen Längsmittelebenen des Griffes. Diese Achse 22 erstreckt sich vom hinteren freien Ende des Griffes 23 bis zum vorderen freien Ende 9 des Kopfes 4. Die Vertikalachse 14 steht senkrecht auf der Längsachse 22 und durchtritt die vertikale Mittelebene von der Oberseite 16 bis zur Unterseite 17 der Zahnbürste. Senkrecht zur Längsachse 22 steht ebenfalls die horizontale Querachse 24, die in einer Horizontalebene der Zahnbürste liegt. Jede Bezugnahme zu einer Quer- oder Horizontalrichtung auf die Zahnbürste in dieser Beschreibung stellt eine Parallele zur Achse 24 dar. Der Griff 2 ist gemäß dieser Ausführungsform aus zwei Komponenten gespritzt, kann jedoch alternativ zur 2 Komponenten Hart-/Weichausführung auch in 3-Komponenten Hart-/Hart-/Weich- oder in Hart-/Weich-/Weichkunststoffausführung gespritzt werden. Der Griff weist zwischen einer vorderen Ebene 25, die das vordere Ende des Griffes 2 benachbart zum Hals definiert und einer Ebene die etwa 3 oder 4 cm parallel nach hinten zum rückwärtigen Ende der Zahnbürste hin versetzt angeordnet ist, eine Daumenauflage 27 an der Oberseite 16 des Griffes und eine Zeigefingerablage 28 an der Unterseite 17 des Griffes auf. Die Oberfläche der Daumenauflage 27 ist sowohl durch den Hartkunststoff der Grundstruktur als auch durch den ersten Weichkunststoff des Griffes gebildet. Dabei tritt der Hartkunststoff in mehreren Ringen an der Oberfläche der Daumenauflage 27 hervor. Die kleinen Durchmesser der Hartkunststoffringe und die geringen Abstände der Ringe zueinander jeweils von etwa 2 bis 6 mm haben zur Folge, dass der Daumen stets auch auf der Hartkunststoffstruktur der Ringe aufliegt. Der Weichkunststoff ist somit im Bereich der Daumenauflage nicht oder nur max. wenige mm wie z. B. 2 bis 3 mm eindrückbar.In the context of all embodiments, a
Die Grundstruktur 5 weist im Bereich des Griffes 2 eine Vielzahl von Strukturöffnungen 29 auf, deren Mittelachsen parallel zur Vertikalen 14 verlaufen. Die Strukturöffnungen 29 in der Grundstruktur 5 sind durch die erste Weichkunststoffkomponente 6 ausgefüllt. Durch die Strukturöffnungen 29 ausgefüllt mit Elastomerkunststoff, durch die Fortführung der Seitenschenkel 19 und 20 der seitlichen Begrenzungswandungen der Öffnung des Halses zu den seitlichen Wandungen 30 und 31 aus Hartkunststoff am Griff 2 ergibt sich eine spezifische Charakteristik der elastischen Biegsamkeit der Zahnbürste über die Längsachse 22. Die elastische Nachgiebigkeit ist im Kopfbereich und dort insbesondere in den äußeren Trägern 10 am größten. Ein Pfeil 32 in
Die modifizierte Ausführungsform nach den
Die
Der elastische Muskel ist in den
Claims (15)
- A toothbrush with a handle (2), a head (4) with oral care elements and a neck (3) that connects the head (4) with the handle (2), wherein a basic structure (5) of the handle (2), of the neck (3) and of the head (4) is formed out of a hard plastic component, wherein the basic structure (5) of the handle (2) is at least partially covered with a first soft plastic component (6); characterized in that:the head (4) has a second soft plastic component; the neck (3) has an opening therethrough (15, 37); and at least one section of a boundary wall (18, 19, 20, 21) of the opening (15, 37) is provided with an elastic "muscle" (7, 38).
- The toothbrush according to Claim 1;
characterized in that
the elastic muscle (7, 38) is formed by a third soft plastic component. - The toothbrush according to one of the preceding Claims;
characterized in that
the third soft plastic component is identical to the first soft plastic component (6). - The toothbrush according to one of the preceding Claims;
characterized in that
the opening (15, 37) is surrounded by two lateral boundary walls (19, 20), a forward boundary wall (18) arranged adjacent to the head (4) and a rear boundary wall (21) arranged adjacent to the handle (2), wherein the elastic muscle (7, 38) is provided only at one of the lateral (19, 20), forward (18) or rear (21) boundary walls. - The toothbrush according to one of the preceding Claims;
characterized in that
the opening (15, 37) between two lateral boundary walls (19, 20) is 1.5 to 7 mm wide. - The toothbrush according to one of the preceding Claims;
characterized in that
the opening (15, 37) between forward (18) and rear (21) boundary walls is 10 to 35 mm long. - The toothbrush according to one of the preceding Claims;
characterized in that
the opening (15, 37) has an essentially triangular or oval cross section. - The toothbrush according to one of the preceding Claims;
characterized in that
attachment openings (13) for the oral care elements are provided in the head (4), which attachment openings extend in the same vertical direction as the opening (15, 37) in the neck (3). - The toothbrush according to one of the preceding Claims;
characterized in that
structural openings (29) are provided in the basic structure (5) in the handle (2), which structural openings (29) extend in the same vertical direction as the opening (15, 37) in the neck (3). - The toothbrush according to one of the preceding Claims;
characterized in that
the opening (15, 37) in the neck (3) is oriented transversely to the attachment openings (13) for the oral care elements in the head (4). - The toothbrush according to Claim 9;
characterized in that
the handle (2) is designed such that its elastic flexibility in a vertical direction is greater by at least 50% in a region between the thumb rest (27) and the index finger rest (28), adjacent to the neck (3), than its flexibility in a direction rotated by 90° relative to this, across the side of the handle (2) at the same point of the longitudinal extent of the handle (2). - The toothbrush according to Claim 9 or 11;
characterized in that
the handle (2) is designed such that its elastic flexibility in the vertical direction is greater by at least 50% in a region between thumb rest (27) and index finger rest (28), adjacent to the neck (3), than its flexibility in the same vertical direction in a middle section of the handle (2), in the middle between the free rear handle end and the forward handle end, adjacent to the neck (3). - The toothbrush according to any of the Claims 9, 11 or 12;
characterized in that
the elastic flexibility in the vertical direction around the middle of the neck (3) is greater than the elastic flexibility in the vertical direction of the handle (2) around the middle of the thumb rest (27) at the forward end of the handle (2), adjacent to the neck (3). - The toothbrush according to any of the Claims 9 or 11 through 13;
characterized in that
the elastic flexibility, in the vertical direction, of a section of the head (4) is greater than the elastic flexibility in the vertical direction around the middle of the neck (3). - The toothbrush according to any of the Claims 9 or 11 through 14;
characterized in that
the thumb rest (27) of the handle (2) is fashioned on its top side such that the thumb can be supported on sections of the basic structure (5).
Priority Applications (14)
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PL09003870T PL2229841T3 (en) | 2009-03-18 | 2009-03-18 | Toothbrush |
EP09003870.4A EP2229841B1 (en) | 2009-03-18 | 2009-03-18 | Toothbrush |
ES09003870.4T ES2538716T3 (en) | 2009-03-18 | 2009-03-18 | Toothbrush |
EP14165783.3A EP2759227B1 (en) | 2009-03-18 | 2009-03-18 | Toothbrush |
CA2755559A CA2755559C (en) | 2009-03-18 | 2010-03-18 | Toothbrush |
PCT/IB2010/051193 WO2010106523A1 (en) | 2009-03-18 | 2010-03-18 | Toothbrush |
AU2010224515A AU2010224515B2 (en) | 2009-03-18 | 2010-03-18 | Toothbrush |
KR1020117021395A KR101398283B1 (en) | 2009-03-18 | 2010-03-18 | Toothbrush |
BRPI1009415-6A BRPI1009415B1 (en) | 2009-03-18 | 2010-03-18 | TOOTHBRUSH |
CN201080012275.7A CN102355834B (en) | 2009-03-18 | 2010-03-18 | Toothbrush |
MX2011009697A MX2011009697A (en) | 2009-03-18 | 2010-03-18 | Toothbrush. |
RU2011136743/12A RU2488329C2 (en) | 2009-03-18 | 2010-03-18 | Toothbrush |
HK10110691.9A HK1144239A1 (en) | 2009-03-18 | 2010-11-17 | Toothbrush |
US13/233,776 US8739351B2 (en) | 2009-03-18 | 2011-09-15 | Toothbrush |
Applications Claiming Priority (1)
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EP09003870.4A EP2229841B1 (en) | 2009-03-18 | 2009-03-18 | Toothbrush |
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EP14165783.3A Division EP2759227B1 (en) | 2009-03-18 | 2009-03-18 | Toothbrush |
EP14165783.3A Division-Into EP2759227B1 (en) | 2009-03-18 | 2009-03-18 | Toothbrush |
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EP2229841B1 true EP2229841B1 (en) | 2015-03-11 |
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EP (2) | EP2759227B1 (en) |
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---|---|---|---|---|
ES2538716T3 (en) * | 2009-03-18 | 2015-06-23 | Braun Gmbh | Toothbrush |
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-
2009
- 2009-03-18 ES ES09003870.4T patent/ES2538716T3/en active Active
- 2009-03-18 EP EP14165783.3A patent/EP2759227B1/en active Active
- 2009-03-18 PL PL09003870T patent/PL2229841T3/en unknown
- 2009-03-18 EP EP09003870.4A patent/EP2229841B1/en active Active
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- 2010-03-18 MX MX2011009697A patent/MX2011009697A/en active IP Right Grant
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- 2010-03-18 WO PCT/IB2010/051193 patent/WO2010106523A1/en active Application Filing
- 2010-03-18 AU AU2010224515A patent/AU2010224515B2/en active Active
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- 2010-03-18 CA CA2755559A patent/CA2755559C/en active Active
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EP2759227A3 (en) | 2015-01-28 |
WO2010106523A1 (en) | 2010-09-23 |
CN102355834A (en) | 2012-02-15 |
EP2759227A2 (en) | 2014-07-30 |
CA2755559A1 (en) | 2010-09-23 |
KR20110116056A (en) | 2011-10-24 |
ES2538716T3 (en) | 2015-06-23 |
BRPI1009415A2 (en) | 2016-03-01 |
PL2229841T3 (en) | 2015-08-31 |
HK1144239A1 (en) | 2011-02-11 |
CA2755559C (en) | 2015-10-13 |
RU2011136743A (en) | 2013-04-27 |
EP2229841A1 (en) | 2010-09-22 |
AU2010224515A1 (en) | 2011-10-13 |
US8739351B2 (en) | 2014-06-03 |
CN102355834B (en) | 2015-03-04 |
US20120036662A1 (en) | 2012-02-16 |
EP2759227B1 (en) | 2016-10-05 |
MX2011009697A (en) | 2011-09-28 |
KR101398283B1 (en) | 2014-05-22 |
BRPI1009415B1 (en) | 2020-02-11 |
AU2010224515B2 (en) | 2014-10-09 |
RU2488329C2 (en) | 2013-07-27 |
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