EP2471408A2 - Toothbrush - Google Patents
Toothbrush Download PDFInfo
- Publication number
- EP2471408A2 EP2471408A2 EP12001077A EP12001077A EP2471408A2 EP 2471408 A2 EP2471408 A2 EP 2471408A2 EP 12001077 A EP12001077 A EP 12001077A EP 12001077 A EP12001077 A EP 12001077A EP 2471408 A2 EP2471408 A2 EP 2471408A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- carrier body
- recess
- brush head
- plastic
- toothbrush according
- 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
- 239000004033 plastic Substances 0.000 claims abstract description 32
- 229920003023 plastic Polymers 0.000 claims abstract description 32
- -1 polypropylene Polymers 0.000 claims abstract description 6
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 5
- 239000004743 Polypropylene Substances 0.000 claims abstract description 4
- 229920001155 polypropylene Polymers 0.000 claims abstract description 4
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 3
- 229920002725 thermoplastic elastomer Polymers 0.000 claims abstract description 3
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 6
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 5
- 230000003068 static effect Effects 0.000 description 3
- 241000549893 Carphochaete Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B7/00—Bristle carriers arranged in the brush body
- A46B7/06—Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B5/00—Brush bodies; Handles integral with brushware
- A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
- A46B5/0025—Brushes with elastically deformable heads that change shape 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
- A46B5/0091—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body promoting relative motion during use
-
- 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 invention relates to a toothbrush having a brush head consisting of a first plastic, on which a carrier body is arranged from a plastic that is softer than the first plastic. 2.
- a bristle stocking in the form of bristle bundles and / or individual bristles is arranged at least on the carrier body ,
- a plastic toothbrush of conventional construction has a plate-like brush head, which carries on its upper side a bristle stocking consisting of bristle bundles and / or individual bristles and is usually formed integrally with a handle-like extension which forms a handle.
- the handle facing portion of the brush head consists of a first relatively rigid rigid plastic on which at the front, the handle facing away from the tip portion of a brush head portion of a Plastic deformation-softening 2.
- Plastic is molded.
- Bristle bundles and / or single bristles are mounted in both sections so that the user is preferably to use the bristles of the easily deformable softer tip section to clean the interdental spaces, and the bristles of the relatively rigid rear brush head section to clean the tooth surfaces.
- this change between the use of different brush head sections when using the toothbrush is cumbersome and sometimes annoying for the user.
- the invention has for its object to provide a toothbrush of the type mentioned, with which it can be achieved both a gentle cleaning of the interdental spaces and an effective cleaning of the tooth surfaces in a simple manner.
- a toothbrush with the features of claim 1. It is provided that in the brush head consisting of a first plastic at least one circumferentially completely closed recess is formed, in which a carrier body is arranged from a comparison with the 1st plastic deformation softer 2nd plastic. At least on the carrier body, but preferably both on the carrier body and on the surrounding brush head, a bristle lining in the form of bristle bundles and / or individual bristles is arranged.
- the bristle bundles and / or individual bristles are subject to a different deformation behavior when using the toothbrush.
- the carrier body is deformed in the bristle facing away from the direction, whereby the fixed to the carrier body bristle bundles and / or individual bristles are withdrawn and the further cleaning operation is preferably carried out with the bristle bundles and single bristles attached to the relatively rigid brush head without the toothbrush having to be used by the user for this purpose.
- the deformation stiffness or softness of the carrier body results on the one hand from the second plastic material forming the carrier body and its material properties.
- the nature and geometry of the mounting or attachment of the carrier body to the surrounding brush head also determines the deformation occurring during use of the toothbrush.
- the recess formed in the brush head is completely closed in the circumferential direction, i. the recess does not open to either side of the brush head and the inner wall of the recess completely revolves.
- the carrier body is connected in connection portions with the surrounding inner wall of the recess. If the carrier body is connected over its entire outer circumference with the inner wall of the recess, the deformation stiffness of the carrier body is determined essentially by its material properties. According to the invention, however, it is provided that the connection between the carrier body and the surrounding inner wall of the recess comprises only a part of the outer circumference of the carrier body. The smaller the connecting surface between the carrier body and the inner wall of the recess, the greater is the deformation of the carrier body occurring during use of the toothbrush.
- the carrier body is connected only on one side of its outer periphery with the surrounding inner wall of the recess.
- the support body thus has the storage of a one-sided held or clamped component, such as a cantilevered plate, which is already at relatively low Querbelastept especially deformed at its end facing away from the clamping.
- a desired deformation behavior of the carrier body can be achieved in particular if the carrier body is attached to the inner wall of the recess via relatively small, precisely defined surfaces. This is for example given when the support body via connecting webs parallel to the deformation direction, i. the bristle longitudinal direction, or can also extend transversely to the deformation direction, is connected to the surrounding inner wall of the recess.
- the carrier body is integrally connected to the inner wall of the recess. This is possible if the first plastic of the brush head and the second plastic of the carrier body enter into an intimate, sufficiently reliable connection.
- the carrier body is positively connected to the inner wall of the recess.
- the carrier body for this purpose, for example, be formed on the inner wall head-like projections which are embraced by the material of the carrier body positively.
- the carrier body extends over the entire height of the recess.
- the carrier body may extend only over a portion of the height of the recess, in which case preferably provided is that the carrier body is arranged in the upper, the bristle facing facing region of the recess.
- the carrier body can perform a deformation within the recess, without emerging on the side facing away from the bristle facing from the recess or the brush head.
- the recess may be formed as the brush head completely penetrating opening, so that the carrier body can emerge on application of large forces on the side facing away from the bristle facing from the recess or opening.
- longer bristle bundles and / or individual bristles are arranged on the carrier body than on the brush head.
- Such a configuration has the advantage that in use of the toothbrush and applying very little cleaning forces essentially only come on the support body arranged longer bristle bundles and / or individual bristles come into contact with the surfaces to be cleaned.
- the carrier body deforms in the direction away from the bristle facing, whereby the arranged on the carrier body bristle bundles and / or single bristles are pressed into the bristle trim, so that in the further use of the toothbrush on the Arranged brush head Bristle bundles and / or single bristles come with the surfaces to be cleaned in plant.
- bristle bundles and / or individual bristles of different lengths are arranged on the carrier body. It is preferably provided, then in those areas of the carrier body, which are subject to relatively large deformation in use, longer bristle bundles are arranged than in those areas which are subject to only a small deformation. In this way it can be achieved that the ends of the bristle bundles and / or individual bristles held on the carrier body lie substantially at a height or in a surface on a deformed carrier body.
- the first plastic of the brush head is preferably a relatively dimensionally stable hard plastic and in particular a semi-crystalline or amorphous thermoplastic, for example polypropylene (PP) or polyethylene terephthalate (PET).
- the second plastic of the carrier body is a deformation-soft elastomer and in particular a thermoplastic elastomer.
- a carrier body is arranged in the brush head.
- a plurality of recesses of the same or different shape are formed in the brush head, in each of which a carrier body mentioned construction is added.
- FIGS. 1, 2 and 3 show a first embodiment of a toothbrush 10 according to the invention, of which only a brush head 11 is shown, to which a in accordance with FIG. 1 right-side connecting portion 11a connects a stalk-like handle in the usual way.
- the brush head 11 consists of a first plastic, which is relatively rigid.
- two recesses 12 are formed, which completely penetrate the brush head 11 and are completely closed over its circumference, i. Surrounded on all sides by the brush head 11.
- a carrier body 13 is arranged, which consists of a second plastic material, which is deformation-soft compared to the first plastic material of the brush head 11.
- a bristle trim 17 which can be formed from bristle bundles 18 and / or from individual bristles, is fastened both to the carrier bodies 13 and to the brush head 11.
- connection portions 13a which comprise only a part of the outer periphery of the respective support body 12, while in the remaining portions of the outer periphery of the support body 13, a gap 19 is formed between this and the inner wall 14 of the recess 12.
- the handle facing away from the portion of the brush head 11 of the local support body 13 is connected only at its rear, the handle end facing via a connecting portion 13 a with the adjacent inner wall 14 of the recess 12.
- the arranged on the associated carrier body 13 bristle bundles 18 are also axially displaced and pulled into the bristle 17.
- support body 13 is connected at its front, facing the head connecting portion 13a and on its opposite side to a handle facing connecting portion 13b cohesively to the inner wall 14 of the associated recess 12, while at its other sides of the wall 14 of the recess 12 below Forming each of a gap 19 is spaced.
- the carrier body 13 in static terms is a held on opposite sides plate, which leads to deformation of the carrier body 13 in the central region in the direction facing the edge trim 17 upon application of a compressive force at the free ends of the bristle bundles 18, as in FIG. 3 is shown.
- FIGS. 4 and 5 illustrated embodiment differs from the aforementioned embodiment only by the length of the bristle bundles 18 of the bristle trim 17. While in the embodiment according to the FIGS. 1 to 3 all bristle bundles 18 have an equal length and thus arranged on the support bodies 13 bristle bundles 18 are drawn in deformation of the support body 13 in the bristle trim 17 and thus by a lesser extent from the top of the bristle head 11 protrude (see FIG. 3 ), is in the execution according to the FIGS. 4 and 5 provided that the bristle bundles arranged on the carrier bodies 13 have a greater axial length than the bristle bundles 18 arranged on the bristle head 11.
- the length of the carrier bodies 13 arranged bristle bundles adapted to the deformation behavior of the carrier body 13.
- the bristle bundles are at the near the connecting portion 13a lying end shorter than the bristle bundles, which lie at the free, the connecting portion 13a opposite end.
- the bristle bundles 18 in the other support body 13, which is a double-sided held plate are shorter near the connecting portions 13a and 13b than in the middle portion where the largest deformation occurs.
- all the bundles of bristles 18 project with their ends approximately the same extent from the brush head 11 when the carrier body 13 is deformed, as is shown in FIG FIG. 5 is shown.
- the carrier bodies 13 were connected in their connecting sections 13a and 13b over the entire height of the recess 12 and thus of the brush head 11 to the surrounding inner wall 14 of the recess 12.
- front support body 13 only in the upper third of its height cohesively connected to the inner wall 14 of the recess 12, below this connection portion 13 a gap 15 between the support body 13 and the inner wall 14 is formed, which additionally supports the deformation of the support body 13, such as it in FIG. 7 is shown.
- the other carrier body 13 which is connected on two opposite sides via connecting portions 13a and 13b with the inner wall 14 of the recess 12, also connected only in the upper third of its height to the inner wall 14, wherein below the connecting portions in each case a gap 15 remains which reduces the deformation stiffness of the carrier body 13 and thus leads to a larger deformation of the carrier body 13 in use of the toothbrush.
- the connecting portions 13a and 13b are formed only in the upper third of the height of the recess, modifications thereof are also possible, in particular a formation of the connecting portions in the upper half of the height of the recess, in the two upper thirds of the height of the recess or only in the middle third of the recess.
- FIGS. 8 to 11 show a further alternative embodiment of the toothbrush according to the invention, wherein the comparison with the previous embodiments similar parts are provided with the same reference numerals. While in the previous embodiments, the connecting portions between the support body 13 and the surrounding inner wall 14 of the recess 12 were relatively large-area areas, the connecting portions in the embodiment according to FIG. 8 formed by narrow, linear connecting webs 13c.
- Left carrier body 13 is provided on the handle side facing each in the corner regions and the central region extending into the recess 12 into the connecting web 13c, so that the Carrier body 13 is held by three linear, relatively thin connecting portions on the brush head 11.
- the connecting webs 13c extend parallel to the longitudinal direction of the bristle bundles 18 and extend in the illustrated embodiment only over half the height of the recess 12.
- Wie FIG. 10 shows, the thickness of the carrier body 13 is significantly smaller than the depth of the recess 12 and includes about half thereof, wherein the carrier body 13 is connected in the upper, the bristle facing 17 facing region of the recess 12.
- middle carrier body 13 is connected only at the two lateral, located at the longitudinal edges of the brush head 11 ends via two corner-side connecting webs 13c and is also only in the upper half of the recess 12 (see FIG. 10 ).
- Right support body 13 differs from the left support body substantially in that the connection surface is again substantially reduced by the connecting webs 13c are smaller than the height of the support body 13. Die Stefansstege 13c ist in Fig. 1 classroom.
- the arrangement of the carrier body 13 in the upper half of the recess 12 causes the carrier body 13 in its deformed state, as in FIG. 11 is shown, remain within the recess 12 and not or only by a small amount on the side facing away from the bristle facing out of the recess 12.
- FIGS. 12 and 13 correspond to the representations in FIGS. 10 and 11 and are complemented by the recesses 12 on the bristle facing away from the side are closed with a cover plate 16, which is either formed integrally with the brush head 11 or subsequently attached thereto. Due to the cover plate 16 is reliably avoided that the support body 13 in its deformed state on the bristle facing 17 side facing away from the recess 12 emerge.
- FIGS. 14, 15 and 16 show possible attachment geometries for a carrier body 13 to the surrounding inner wall 14 of the recess 12.
- middle support body 13 is fitted under close fit in the associated recess 12 and secured over its entire circumference at this.
- an all-sided held plate is given.
- this support body is connected only at its the longitudinal edges of the brush head 11 facing side surfaces with the recess 12, while on the two other sides in each case a gap 19 between the support body 13 and the recess 12 is formed.
- FIG. 16 the same carrier body is held only at the two opposite, pointing to the longitudinal sides of the brush head ends 11, but there is in contrast to the embodiment according to FIG. 15 now only a relatively thin, central connecting web 13c is provided, which makes it possible that the carrier body 13 performs deformation movements in different directions.
- the according to FIG. 14 left carrier body is connected on all its side surfaces via a connecting web 13c with the surrounding inner wall 14 of the recess 12.
- this carrier body is only on the side facing the handle with the recess 12 via a large-area connecting portion 13a, while the other sides are spaced to form the gap 19 from the recess.
- the left support body is only connected in two corner regions via an elongated connecting web 13c.
- the right support body 13 according to FIG. 14 is only on its the middle of the brush head 11 facing side via a central, vertically extending connecting web 13c with the inner wall 14 of the recess 12 in connection, so that the carrier body 13 can perform relatively large deformations.
- the same carrier body is in accordance with the embodiment FIG. 15 on its entire, the center of the brush head 11 facing side connected to the recess 12.
- the embodiment of this support body according to FIG. 16 differs from the embodiment according to FIG. 14 essentially in that in addition to the central connecting web 13c on the middle of the brush head 11 side facing also in the corner regions in each case a connecting web 13c is formed, which, however, is connected to the longitudinal sides of the brush head 11 facing ends with the recess.
- the second plastic material of the carrier body 13 can be materially connected to the first plastic material of the brush head 11. If this is not the case, a positive connection between the support body 13 and the brush head 11 may be provided, as in the FIGS. 17 to 19 is shown.
- FIG. 17 is on the inside of the left recess 12, a so-called mushroom head 20 is formed, which forms an undercut.
- the carrier body 13 engages behind the mushroom head 20 so that the carrier body 13 is held in a form-fitting manner on the brush head 11.
- the deformation behavior of the carrier body 13 can be set in the desired manner.
- only a single mushroom head 20 is provided, so that the carrier body 13 can perform relatively large deformations.
- the carrier body 13 surrounds the flanges 22 of the profile strips 21 and is thus positively connected thereto.
- a gap 19 is formed between the outside of the carrier body 13 and the inner wall 14 of the recess 12, ie the carrier body 13 is only on the profile strips 21 with the brush head 11 in abutment. This allows relatively large deformations, as in FIG. 19 is shown.
Landscapes
- Brushes (AREA)
Abstract
Description
Die Erfindung betrifft eine Zahnbürste mit einem aus einem 1. Kunststoff bestehenden Bürstenkopf, an dem ein Trägerkörper aus einem gegenüber dem 1. Kunststoff verformungsweicheren 2. Kunststoff angeordnet ist, wobei zumindest auf dem Trägerkörper ein Borstenbesatz in Form von Borstenbündeln und/oder Einzelborsten angeordnet ist.The invention relates to a toothbrush having a brush head consisting of a first plastic, on which a carrier body is arranged from a plastic that is softer than the first plastic. 2. A bristle stocking in the form of bristle bundles and / or individual bristles is arranged at least on the carrier body ,
Eine aus Kunststoff bestehende Zahnbürste üblichen Aufbaus besitzt einen plattenartigen Bürstenkopf, der auf seiner Oberseite einen aus Borstenbündeln und/oder Einzelborsten bestehenden Borstenbesatz trägt und üblicherweise einstückig mit einer stielartigen Verlängerung ausgebildet ist, die einen Handgriff bildet.A plastic toothbrush of conventional construction has a plate-like brush head, which carries on its upper side a bristle stocking consisting of bristle bundles and / or individual bristles and is usually formed integrally with a handle-like extension which forms a handle.
Seit langer Zeit ist es bekannt, dass es zur Reinigung der Zahnzwischenräume sinnvoll ist, dass die Borsten bereits bei relativ geringen Andruckkräften seitlich ausweichen, um dadurch eine Verletzung des insbesondere im Bereich der Zahnzwischenräume sehr empfindlichen Zahnfleisches zu vermeiden. Andererseits ist es für die Reinigung der Zahnoberflächen vorteilhaft, wenn eine ausreichende Andruckkraft zwischen den Borsten und der Zahnoberfläche erreicht werden kann.For a long time it has been known that it makes sense to clean the interdental spaces that the bristles escape laterally even at relatively low pressure forces, thereby avoiding injury to the gums, which are very sensitive in particular in the region of the interdental spaces. On the other hand, it is advantageous for the cleaning of the tooth surfaces, if a sufficient pressure force between the bristles and the tooth surface can be achieved.
Um diesen beiden Forderungen gerecht zu werden, ist es beispielsweise aus der
Bei einer Zahnbürste gemäß der
Der Erfindung liegt die Aufgabe zugrunde, eine Zahnbürste der genannten Art zu schaffen, mit der es sich in einfacher Weise sowohl eine schonende Reinigung der Zahnzwischenräume als auch eine effektive Reinigung der Zahnoberflächen erreichen lässt.The invention has for its object to provide a toothbrush of the type mentioned, with which it can be achieved both a gentle cleaning of the interdental spaces and an effective cleaning of the tooth surfaces in a simple manner.
Diese Aufgabe wird erfindungsgemäß durch eine Zahnbürste mit den Merkmalen des Anspruchs 1 gelöst. Dabei ist vorgesehen, dass in dem aus einem 1. Kunststoff bestehenden Bürstenkopf zumindest eine in Umfangsrichtung vollständig geschlossene Ausnehmung ausgebildet ist, in der ein Trägerkörper aus einem gegenüber dem 1. Kunststoff verformungsweicheren 2. Kunststoff angeordnet ist. Zumindest auf dem Trägerkörper, jedoch vorzugsweise sowohl auf dem Trägerkörper als auch auf dem umgebenden Bürstenkopf ist ein Borstenbesatz in Form von Borstenbündeln und/oder Einzelborsten angeordnet.This object is achieved by a toothbrush with the features of
Aufgrund der unterschiedlichen Verformungssteifigkeit einerseits des Bürstenkopfes und andererseits des die Ausnehmung des Bürstenkopfes ausfüllenden Trägerkörpers unterliegen die Borstenbündel und/oder Einzelborsten bei Gebrauch der Zahnbürste einem unterschiedlichen Verformungsverhalten. Bei einer durch die Verformungssteifigkeit des relativ verformungsweichen Trägerkörpers bestimmten Andruckkraft verformt sich der Trägerkörper in die dem Borstenbesatz abgewandte Richtung, wodurch die am Trägerkörper befestigten Borstenbündel und/oder Einzelborsten zurückgezogen werden und der weitere Putzvorgang bevorzugt mit den am relativ verformungssteifen Bürstenkopf angebrachten Borstenbündeln und Einzelborsten erfolgt, ohne dass die Zahnbürste zu diesem Zweck vom Benutzer umgesetzt werden muss.Due to the different deformation stiffness on the one hand of the brush head and on the other hand of the recess of the brush head filling carrier body, the bristle bundles and / or individual bristles are subject to a different deformation behavior when using the toothbrush. In a determined by the deformation stiffness of the relatively deformable support body pressing force, the carrier body is deformed in the bristle facing away from the direction, whereby the fixed to the carrier body bristle bundles and / or individual bristles are withdrawn and the further cleaning operation is preferably carried out with the bristle bundles and single bristles attached to the relatively rigid brush head without the toothbrush having to be used by the user for this purpose.
Die Verformungssteifigkeit oder -weichheit des Trägerkörpers ergibt sich einerseits aus dem den Trägerkörper bildenden 2. Kunststoffmaterial und dessen Materialeigenschaften. Darüber hinaus bestimmt auch die Art und Geometrie der Lagerung oder Anbringung des Trägerkörpers an dem umgebenden Bürstenkopf die sich bei Gebrauch der Zahnbürste einstellende Verformung.The deformation stiffness or softness of the carrier body results on the one hand from the second plastic material forming the carrier body and its material properties. In addition, the nature and geometry of the mounting or attachment of the carrier body to the surrounding brush head also determines the deformation occurring during use of the toothbrush.
Die in dem Bürstenkopf ausgebildete Ausnehmung ist in Umfangsrichtung vollständig geschlossen, d.h. die Ausnehmung öffnet zu keiner Seite des Bürstenkopfes und die Innenwandung der Ausnehmung läuft vollständig um. Dabei ist der Trägerkörper in Verbindungsabschnitten mit der umgebenden Innenwandung der Ausnehmung verbunden. Wenn der Trägerkörper über seinen gesamten Außenumfang mit der Innenwandung der Ausnehmung verbunden ist, wird die Verformungssteifigkeit des Trägerkörpers im wesentlichen durch dessen Materialeigenschaften bestimmt. Gemäß der Erfindung ist jedoch vorgesehen, dass die Verbindung zwischen dem Trägerkörper und der umgebenden Innenwandung der Ausnehmung nur einen Teil des Außenumfangs des Trägerkörpers umfasst. Je geringer die Verbindungsfläche zwischen dem Trägerkörper und der Innenwandung der Ausnehmung ist, desto größer ist die sich bei Gebrauch der Zahnbürste einstellende Verformung des Trägerkörpers.The recess formed in the brush head is completely closed in the circumferential direction, i. the recess does not open to either side of the brush head and the inner wall of the recess completely revolves. In this case, the carrier body is connected in connection portions with the surrounding inner wall of the recess. If the carrier body is connected over its entire outer circumference with the inner wall of the recess, the deformation stiffness of the carrier body is determined essentially by its material properties. According to the invention, however, it is provided that the connection between the carrier body and the surrounding inner wall of the recess comprises only a part of the outer circumference of the carrier body. The smaller the connecting surface between the carrier body and the inner wall of the recess, the greater is the deformation of the carrier body occurring during use of the toothbrush.
Gemäß der Erfindung ist vorgesehen, dass der Trägerkörper nur auf einer Seite seines Außenumfangs mit der umgebenden Innenwandung der Ausnehmung verbunden ist. Der Trägerkörper besitzt somit die Lagerung eines einseitig gehaltenen oder eingespannten Bauteils, beispielsweise einer einseitig eingespannten Platte, die sich bereits bei relativ geringen Querbelastungen insbesondere an ihrem der Einspannung abgewandten Ende verformt.According to the invention it is provided that the carrier body is connected only on one side of its outer periphery with the surrounding inner wall of the recess. The support body thus has the storage of a one-sided held or clamped component, such as a cantilevered plate, which is already at relatively low Querbelastungen especially deformed at its end facing away from the clamping.
Ein gewünschtes Verformungsverhalten des Trägerkörpers lässt sich insbesondere dann erreichen, wenn der Trägerkörper über relativ kleine, genau definierte Flächen an der Innenwandung der Ausnehmung angebracht ist. Dies ist beispielsweise dann gegeben, wenn der Trägerkörper über Verbindungsstege, die parallel zur Verformungsrichtung, d.h. der Borstenlängsrichtung, oder auch quer zur Verformungsrichtung verlaufen können, mit der umgebenden Innenwandung der Ausnehmung verbunden ist.A desired deformation behavior of the carrier body can be achieved in particular if the carrier body is attached to the inner wall of the recess via relatively small, precisely defined surfaces. This is for example given when the support body via connecting webs parallel to the deformation direction, i. the bristle longitudinal direction, or can also extend transversely to the deformation direction, is connected to the surrounding inner wall of the recess.
In einer möglichen Ausgestaltung der Erfindung ist vorgesehen, dass der Trägerkörper stoffschlüssig mit der Innenwandung der Ausnehmung verbunden ist. Dies ist dann möglich, wenn der 1. Kunststoff des Bürstenkopfes und der 2. Kunststoff des Trägerkörpers eine innige, ausreichend zuverlässige Verbindung eingehen. Alternativ oder zusätzlich dazu kann vorgesehen sein, dass der Trägerkörper formschlüssig mit der Innenwandung der Ausnehmung verbunden ist. Zu diesem Zweck können beispielsweise an der Innenwandung kopfartige Vorsprünge ausgebildet sein, die von dem Material des Trägerkörpers formschlüssig umgriffen werden. Alternativ ist es auch möglich, in der Innenwandung der Ausnehmung Hinterschnitte auszubilden, in die das Material des Trägerkörpers in formschlüssiger Weise eingreift.In a possible embodiment of the invention it is provided that the carrier body is integrally connected to the inner wall of the recess. This is possible if the first plastic of the brush head and the second plastic of the carrier body enter into an intimate, sufficiently reliable connection. Alternatively or additionally, it can be provided that the carrier body is positively connected to the inner wall of the recess. For this purpose, for example, be formed on the inner wall head-like projections which are embraced by the material of the carrier body positively. Alternatively, it is also possible to form undercuts in the inner wall of the recess, in which the material of the carrier body engages in a form-fitting manner.
In einer möglichen Ausgestaltung der Erfindung kann vorgesehen sein, dass der Trägerkörper sich über die gesamte Höhe der Ausnehmung erstreckt. Alternativ kann sich der Trägerkörper auch nur über einen Teilbereich der Höhe der Ausnehmung erstrecken, wobei in diesem Fall vorzugsweise vorgesehen ist, dass der Trägerkörper im oberen, dem Borstenbesatz zugewandten Bereich der Ausnehmung angeordnet ist. In diesem Fall kann der Trägerkörper innerhalb der Ausnehmung eine Verformung ausführen, ohne auf der dem Borstenbesatz abgewandten Seite aus der Ausnehmung bzw. dem Bürstenkopf hervorzutreten.In a possible embodiment of the invention can be provided that the carrier body extends over the entire height of the recess. Alternatively, the carrier body may extend only over a portion of the height of the recess, in which case preferably provided is that the carrier body is arranged in the upper, the bristle facing facing region of the recess. In this case, the carrier body can perform a deformation within the recess, without emerging on the side facing away from the bristle facing from the recess or the brush head.
Die Ausnehmung kann als den Bürstenkopf vollständig durchdringende Durchbrechung ausgebildet sein, so dass der Trägerkörper bei Aufbringung großer Kräfte auf der dem Borstenbesatz abgewandten Seite aus der Ausnehmung bzw. Durchbrechung hervortreten kann. Alternativ ist es jedoch auch möglich, die Ausnehmung auf ihrer dem Borstenbesatz abgewandten Seite zu verschließen. Dies kann entweder durch Anordnung einer unterseitigen Deckelplatte erfolgen, alternativ ist es jedoch auch möglich, die Ausnehmung nicht als Durchbrechung, sondern nach Art eines Sackloches auszubilden.The recess may be formed as the brush head completely penetrating opening, so that the carrier body can emerge on application of large forces on the side facing away from the bristle facing from the recess or opening. Alternatively, however, it is also possible to close the recess on its side facing away from the bristle facing. This can be done either by arranging a lower-side cover plate, but alternatively it is also possible to form the recess not as an opening, but in the manner of a blind hole.
In bevorzugter Ausgestaltung der Erfindung ist vorgesehen, dass auf dem Trägerkörper längere Borstenbündel und/oder Einzelborsten als auf dem Bürstenkopf angeordnet sind. Eine derartige Ausgestaltung hat den Vorteil, dass bei Gebrauch der Zahnbürste und bei Aufbringung sehr geringer Putzkräfte im wesentlichen nur die auf dem Trägerkörper angeordneten längeren Borstenbündel und/oder Einzelborsten mit den zu putzenden Flächen in Kontakt kommen. Wenn der Benutzer der Zahnbürste eine größere Andruckkraft aufbringt, verformt sich der Trägerkörper in die dem Borstenbesatz abgewandte Richtung, wodurch die auf dem Trägerkörper angeordneten Borstenbündel und/oder Einzelborsten in den Borstenbesatz hineingedrückt werden, so dass bei dem weiteren Gebrauch der Zahnbürste auch die auf dem Bürstenkopf angeordneten Borstenbündel und/oder Einzelborsten mit den zu reinigenden Oberflächen in Anlage kommen.In a preferred embodiment of the invention, it is provided that longer bristle bundles and / or individual bristles are arranged on the carrier body than on the brush head. Such a configuration has the advantage that in use of the toothbrush and applying very little cleaning forces essentially only come on the support body arranged longer bristle bundles and / or individual bristles come into contact with the surfaces to be cleaned. If the user of the toothbrush applies a greater pressure force, the carrier body deforms in the direction away from the bristle facing, whereby the arranged on the carrier body bristle bundles and / or single bristles are pressed into the bristle trim, so that in the further use of the toothbrush on the Arranged brush head Bristle bundles and / or single bristles come with the surfaces to be cleaned in plant.
Zusätzlich oder alternativ dazu kann vorgesehen sein, dass auf dem Trägerkörper Borstenbündel und/oder Einzelborsten unterschiedlicher Länge angeordnet sind. Dabei ist vorzugsweise vorgesehen, dann in denjenigen Bereichen des Trägerkörpers, die bei Gebrauch einer relativ großen Verformung unterliegen, längere Borstenbündel als in denjenigen Bereichen angeordnet sind, die einer nur geringen Verformung unterliegen. Auf diese Weise lässt sich erreichen, dass auf einem verformten Trägerkörper die Enden der auf dem Trägerkörper gehaltenen Borstenbündel und/oder Einzelborsten im wesentlichen auf einer Höhe bzw. in einer Fläche liegen.Additionally or alternatively, it can be provided that bristle bundles and / or individual bristles of different lengths are arranged on the carrier body. It is preferably provided, then in those areas of the carrier body, which are subject to relatively large deformation in use, longer bristle bundles are arranged than in those areas which are subject to only a small deformation. In this way it can be achieved that the ends of the bristle bundles and / or individual bristles held on the carrier body lie substantially at a height or in a surface on a deformed carrier body.
Bei dem 1. Kunststoff des Bürstekopfes handelt es sich vorzugsweise um einen relativ formstabilen harten Kunststoff und insbesondere um einen teilkristallinen oder amorphen thermoplastischen Kunststoff, beispielsweise um Polyprophylen (PP) oder Polyethylenterephthalat (PET). Im Gegensatz dazu handelt es sich bei dem 2. Kunststoff des Trägerkörpers um ein verformungsweiches Elastomer und insbesondere um ein thermoplastisches Elastomer.The first plastic of the brush head is preferably a relatively dimensionally stable hard plastic and in particular a semi-crystalline or amorphous thermoplastic, for example polypropylene (PP) or polyethylene terephthalate (PET). In contrast, the second plastic of the carrier body is a deformation-soft elastomer and in particular a thermoplastic elastomer.
Bei der vorhergehenden Beschreibung war beispielhaft immer davon ausgegangen worden, dass ein Trägerkörper in dem Bürstenkopf angeordnet ist. Vorzugsweise sind jedoch in dem Bürstenkopf mehrere Ausnehmungen gleicher oder unterschiedlicher Form ausgebildet, in denen jeweils ein Trägerkörper genannten Aufbaus aufgenommen ist.In the foregoing description, it has always been assumed by way of example that a carrier body is arranged in the brush head. Preferably, however, a plurality of recesses of the same or different shape are formed in the brush head, in each of which a carrier body mentioned construction is added.
Weitere Einzelheiten und Merkmale der Erfindung sind aus der folgenden Beschreibung von Ausführungsbeispielen unter Bezugnahme auf die Zeichnung ersichtlich. Es zeigen:
- Fig. 1
- eine Aufsicht auf einen Bürstenkopf,
- Fig. 2
- den Schnitt II-II in
Figur 1 - Fig. 3
- den Bürstenkopf gemäß
Figur 2 mit verformten Trägerkörpern, - Fig. 4
- eine alternative Ausgestaltung der Zahnbürste gemäß
Figur 2 , - Fig. 5
- den Bürstenkopf gemäß
Figur 4 mit verformten Trägerkörpern, - Fig. 6
- eine Abwandlung des Bürstenkopfes gemäß
Figur 4 ohne Borstenbesatz, - Fig. 7
- den Bürstenkopf gemäß
Figur 6 mit verformten Trägerkörpern, - Fig. 8
- eine Aufsicht auf eine alternative Ausgestaltung eines Bürstenkopfes,
- Fig. 9
- den Schnitt IX-IX in
Figur 8 , - Fig. 10
- den Schnitt X-X in
Figur 8 , - Fig. 11
eine Figur 10 entsprechende Darstellung mit verformten Trägerkörpern,- Fig. 12
eine Figur 10 entsprechende Darstellung eines Bürstenkopfes mit unterer Abdeckplatte,- Fig. 13
eine Figur 12 entsprechende Darstellung mit verformten Trägerkörpern,- Fig. 14
- eine Aufsicht auf einen
Bürstenkopf mit einer 1. alternativen Anordnung der Trägerkörper, - Fig. 15
- eine Aufsicht auf einen Bürstenkopf mit einer 2. alternativen Anordnung der Trägerkörper,
- Fig. 16
- eine Aufsicht auf einen Bürstenkopf mit einer 3. alternativen Anordnung der Trägerkörper,
- Fig. 17
- eine Aufsicht auf einen Bürstenkopf mit einer formschlüssigen Anbindung eines Trägerkörpers,
- Fig. 18
- den Schnitt XVIII-XVIII in
undFigur 17 - Fig. 19
eine Figur 18 entsprechende Darstellung mit verformten Trägerkörpern.
- Fig. 1
- a view of a brush head,
- Fig. 2
- the section II-II in
FIG. 1 - Fig. 3
- according to the brush head
FIG. 2 with deformed carrier bodies, - Fig. 4
- an alternative embodiment of the toothbrush according to
FIG. 2 . - Fig. 5
- according to the brush head
FIG. 4 with deformed carrier bodies, - Fig. 6
- a modification of the brush head according to
FIG. 4 without bristle trim, - Fig. 7
- according to the brush head
FIG. 6 with deformed carrier bodies, - Fig. 8
- a plan view of an alternative embodiment of a brush head,
- Fig. 9
- the section IX-IX in
FIG. 8 . - Fig. 10
- the section XX in
FIG. 8 . - Fig. 11
- a
FIG. 10 corresponding representation with deformed carrier bodies, - Fig. 12
- a
FIG. 10 corresponding representation of a brush head with lower cover plate, - Fig. 13
- a
FIG. 12 corresponding representation with deformed carrier bodies, - Fig. 14
- a plan view of a brush head with a first alternative arrangement of the carrier body,
- Fig. 15
- a plan view of a brush head with a second alternative arrangement of the carrier body,
- Fig. 16
- a plan view of a brush head with a third alternative arrangement of the carrier body,
- Fig. 17
- a plan view of a brush head with a positive connection of a carrier body,
- Fig. 18
- section XVIII-XVIII in
FIG. 17 and - Fig. 19
- a
FIG. 18 corresponding representation with deformed carrier bodies.
Die
Der Bürstenkopf 11 besteht aus einem 1. Kunststoff, der relativ verformungssteif ist. In dem Bürstenkopf 11 sind zwei Ausnehmungen 12 ausgebildet, die den Bürstenkopf 11 vollständig durchdringen und über ihren Umfang vollständig geschlossen sind, d.h. auf allen Seiten von dem Bürstenkopf 11 umgeben sind. In jeder der Ausnehmungen 12 ist ein Trägerkörper 13 angeordnet, der aus einem 2. Kunststoffmaterial besteht, das gegenüber dem 1. Kunststoffmaterial des Bürstenkopfes 11 verformungsweicher ist. Auf der Oberseite des Bürstenkopfes 11 ist sowohl auf den Trägerkörpern 13 als auch auf dem Bürstenkopf 11 ein Borstenbesatz 17 befestigt, der aus Borstenbündeln 18 und/oder aus Einzelborsten gebildet sein kann.The
Die Trägerkörper 13 sind nicht über ihren gesamten Umfang mit der umgebenden Innenwandung 14 der zugeordneten Ausnehmung 12 verbunden, sondern die Verbindung besteht nur in Verbindungsabschnitten 13a, die nur einen Teil des Außenumfangs des jeweiligen Trägerkörpers 12 umfassen, während in den verbleibenden Abschnitten des Außenumfangs des Trägerkörpers 13 zwischen diesem und der Innenwandung 14 der Ausnehmung 12 ein Spalt 19 gebildet ist.The
Im vorderen, dem nicht dargestellten Handgriff abgewandten Abschnitt des Bürstenkopfes 11 ist der dortige Trägerkörper 13 nur an seinem hinteren, dem Handgriff zugewandten Ende über einen Verbindungsabschnitt 13a mit der anliegenden Innenwandung 14 der Ausnehmung 12 verbunden. Dies führt dazu, dass der Trägerkörper 13 bei Aufbringung von Druckkräfte auf die Spitzen des Borstenbesatzes nach Art einer einseitig eingespannten Platte in die dem Borstenbesatz 17 abgewandte Richtung ausweichen kann, wie es in
Der weitere, in
Das in den
Bei den beiden bisher dargestellten Ausführungsbeispielen waren die Trägerkörper 13 in ihren Verbindungsabschnitten 13a bzw. 13b jeweils über die gesamte Höhe der Ausnehmung 12 und somit des Bürstenkopfes 11 mit der umgebenden Innenwandung 14 der Ausnehmung 12 verbunden. Um die Verformungseigenschaften des Trägerkörpers 13 zu verändern, kann vorgesehen sein, die Höhe der Verbindungsabschnitte 13a und 13b zu reduzieren, wie es in den
Entsprechend ist der andere Trägerkörper 13, der auf zwei entgegengesetzten Seiten über Verbindungsabschnitte 13a und 13b mit der Innenwandung 14 der Ausnehmung 12 verbunden ist, ebenfalls nur im oberen Drittel seiner Höhe an die Innenwandung 14 angeschlossen, wobei unterhalb der Verbindungsabschnitte jeweils ein Spalt 15 verbleibt, der die Verformungssteifigkeit des Trägerkörpers 13 herabsetzt und somit zu einer größeren Verformung des Trägerkörpers 13 bei Gebrauch der Zahnbürste führt.Accordingly, the
Obwohl im dargestellten Ausführungsbeispiel die Verbindungsabschnitte 13a und 13b nur im oberen Drittel der Höhe der Ausnehmung ausgebildet sind, sind auch hiervon Abwandlungen möglich, insbesondere eine Ausbildung der Verbindungsabschnitte in der oberen Hälfte der Höhe der Ausnehmung, in den beiden oberen Dritteln der Höhe der Ausnehmung oder nur im mittleren Drittel der Ausnehmung.Although in the illustrated embodiment, the connecting
Die
Bei dem gemäß
Der gemäß
Der gemäß
Die Anordnung der Trägerkörper 13 in der oberen Hälfte der Ausnehmung 12 führt dazu, dass die Trägerkörper 13 in ihrem verformten Zustand, wie er in
Die
Die
Der gemäß
Der rechte Trägerkörper 13 gemäß
Bei den bisherigen Ausgestaltungen war immer davon ausgegangen worden, dass das 2. Kunststoffmaterial des Trägerkörpers 13 sich stoffschlüssig mit dem 1. Kunststoffmaterial des Bürstenkopfes 11 verbinden lässt. Wenn dies nicht der Fall sein sollte, kann eine formschlüssige Verbindung zwischen dem Trägerkörper 13 und dem Bürstenkopf 11 vorgesehen sein, wie sie in den
Gemäß
Während bei dem oben beschriebenen linken Trägerkörper 13 gemäß
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710021314 DE102007021314A1 (en) | 2007-05-07 | 2007-05-07 | toothbrush |
EP08758381A EP2144528B1 (en) | 2007-05-07 | 2008-05-05 | Toothbrush |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08758381.1 Division | 2008-05-05 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2471408A2 true EP2471408A2 (en) | 2012-07-04 |
EP2471408A3 EP2471408A3 (en) | 2012-10-10 |
EP2471408B1 EP2471408B1 (en) | 2013-11-13 |
Family
ID=39829219
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08758381A Active EP2144528B1 (en) | 2007-05-07 | 2008-05-05 | Toothbrush |
EP12001077.2A Active EP2471408B1 (en) | 2007-05-07 | 2008-05-05 | Toothbrush |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08758381A Active EP2144528B1 (en) | 2007-05-07 | 2008-05-05 | Toothbrush |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP2144528B1 (en) |
DE (1) | DE102007021314A1 (en) |
ES (1) | ES2446380T3 (en) |
WO (1) | WO2008135258A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102125353B (en) * | 2010-01-20 | 2015-03-11 | 李宗鸿 | Replaceable toothbrush with combination of multiple bristle sheets |
JP2013545563A (en) | 2010-12-13 | 2013-12-26 | コーニンクレッカ フィリップス エヌ ヴェ | Oral hygiene device with moldable base |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19816098A1 (en) | 1998-04-09 | 1999-10-14 | Coronet Werke Gmbh | Cleaning brush, especially toothbrush |
EP0769920B1 (en) | 1994-07-13 | 2003-09-17 | The Procter & Gamble Company | Resiliently flexible bristle bearing head toothbrush |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1233821B (en) * | 1964-10-02 | 1967-02-09 | Du Pont | Toothbrush |
US4240452A (en) * | 1979-09-13 | 1980-12-23 | Jean San Bau | Elastic base toothbrush |
FR2616306B1 (en) * | 1987-06-15 | 1990-04-20 | Bois Jean | MECHANIZED TOOTHBRUSH |
ES2158208T3 (en) * | 1991-03-27 | 2001-09-01 | Smithkline Beecham Consumer | TEETH BRUSH WITH FLEXIBLE UNION AREA BETWEEN THE HEAD AND THE CIRCUNDANT FRAME. |
US5398366A (en) * | 1991-03-29 | 1995-03-21 | Bradley; Terry | Rocker toothbrush |
DE4122524A1 (en) | 1991-07-08 | 1992-02-06 | Jens Pagel | Toothbrush with flexible bristles - has bristle bundles in elastic bearings |
DE10259723A1 (en) * | 2002-12-19 | 2004-07-01 | Trisa Holding Ag | Toothbrush and process for making it |
GB0317539D0 (en) * | 2003-07-25 | 2003-08-27 | Glaxosmithkline Consumer Healt | Toothbrush |
ATE534314T1 (en) * | 2004-09-22 | 2011-12-15 | Trisa Holding Ag | BRUSH, IN PARTICULAR TOOTHBRUSH, AND METHOD FOR THE PRODUCTION THEREOF |
-
2007
- 2007-05-07 DE DE200710021314 patent/DE102007021314A1/en not_active Withdrawn
-
2008
- 2008-05-05 EP EP08758381A patent/EP2144528B1/en active Active
- 2008-05-05 WO PCT/EP2008/003583 patent/WO2008135258A2/en active Application Filing
- 2008-05-05 EP EP12001077.2A patent/EP2471408B1/en active Active
- 2008-05-05 ES ES12001077T patent/ES2446380T3/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0769920B1 (en) | 1994-07-13 | 2003-09-17 | The Procter & Gamble Company | Resiliently flexible bristle bearing head toothbrush |
DE19816098A1 (en) | 1998-04-09 | 1999-10-14 | Coronet Werke Gmbh | Cleaning brush, especially toothbrush |
Also Published As
Publication number | Publication date |
---|---|
EP2144528A2 (en) | 2010-01-20 |
EP2144528B1 (en) | 2012-08-08 |
ES2446380T3 (en) | 2014-03-07 |
EP2471408B1 (en) | 2013-11-13 |
EP2471408A3 (en) | 2012-10-10 |
WO2008135258A3 (en) | 2009-01-22 |
WO2008135258A2 (en) | 2008-11-13 |
DE102007021314A1 (en) | 2008-11-13 |
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