EP2144528A2 - Brosse à dents - Google Patents
Brosse à dentsInfo
- Publication number
- EP2144528A2 EP2144528A2 EP08758381A EP08758381A EP2144528A2 EP 2144528 A2 EP2144528 A2 EP 2144528A2 EP 08758381 A EP08758381 A EP 08758381A EP 08758381 A EP08758381 A EP 08758381A EP 2144528 A2 EP2144528 A2 EP 2144528A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- carrier body
- recess
- toothbrush according
- brush head
- plastic
- 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 30
- 229920003023 plastic Polymers 0.000 claims abstract description 30
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims 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
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims 1
- 229920001155 polypropylene Polymers 0.000 claims 1
- 239000012815 thermoplastic material Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 6
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 5
- 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
- 230000003068 static effect Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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, to which a carrier body of a plastic which is softer than the first plastic is arranged, at least on the carrier body a bristle stock in the form of bristle bundles and / or individual bristles is arranged.
- 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.
- a rear, handle-facing portion of the brush head consists of a first relatively dimensionally stable hard plastic, on which the front, the Handpiece facing away from the tip portion of a brush head portion of a plastic with respect to the 1st plastic deformation softer 2nd 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 in a simple manner, both a gentle cleaning of the interdental spaces and an effective cleaning of the tooth surfaces.
- a toothbrush with the features of claim 1. It is envisaged that in the existing of a 1st plastic Brush head at least one circumferentially completely closed recess is formed, in which a carrier body is arranged from a relative to the 1st plastic softener deformed 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 single bristles are subject to a different deformation behavior when using the toothbrush.
- the carrier body deforms in the 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 preferably with the attached to the relatively rigid brush head bristle bundles and single bristles, without the toothbrush must be implemented for this purpose by the user.
- 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 type 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, ie the recess does not open to either side of the brush head and the inner wall of the recess runs completely around.
- the carrier body is connected in connection portions with the surrounding inner wall of the recess. When the carrier body is connected over its entire outer circumference to the inner wall of the recess, the deformation stiffness of the carrier body is essentially determined by its material properties.
- 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 carrier body thus has the bearing of a component held or clamped on one side, for example a plate clamped on one side, which already deforms at relatively low transverse loads, in particular at its end facing away from the clamping.
- the carrier body is connected to the surrounding inner wall of the recess on two opposite sides of its outer circumference, which corresponds to a component or plate clamped on two sides.
- 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 carrier body is connected via connecting webs which can extend parallel to the deformation direction, ie the bristle longitudinal direction, or also transversely to the deformation direction, with the surrounding inner wall of the recess.
- the carrier body is materially 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.
- head-like projections can be formed on the inner wall, which are encompassed by the material of the carrier body in a form-fitting manner.
- the carrier body extends over the entire height of the recess.
- the carrier body can also extend over only a partial area of the height of the recess, wherein in this case it is preferably provided that the carrier body is arranged in the upper region of the recess facing the bristle facing.
- the carrier body can perform a deformation within the recess, without protruding on the side facing away from the bristle facing from the recess or the brush head.
- the recess may be formed as an opening penetrating the brush head completely, so that the carrier body can emerge from the recess or through-hole on the side facing away from the bristle facing when large forces are applied.
- 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 low 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 Brush head arranged bristle bundles and / or single bristles come to rest with the surfaces to be cleaned.
- bristle bundles and / or individual bristles of different lengths are arranged on the carrier body.
- longer bristle bundles are then arranged in those regions of the carrier body which are subject to relatively large deformation in use than in those regions which are subject to only slight 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 polyprophylene (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.
- FIG. 3 shows the brush head according to FIG. 2 with deformed carrier bodies
- FIG. 4 shows an alternative embodiment of the toothbrush according to FIG. 2,
- FIG. 5 shows the brush head according to FIG. 4 with deformed carrier bodies
- FIG. 6 shows a modification of the brush head according to FIG. 4 without bristle lining
- Fig. 7 shows the brush head according to Figure 6 with deformed
- FIG. 8 is a plan view of an alternative embodiment of a brush head
- FIG. 11 shows a representation corresponding to FIG. 10 with deformed carrier bodies
- FIG. 12 is a representation corresponding to FIG 10 a brush head with lower cover plate
- FIG. 13 a representation corresponding to FIG. 12 with deformed carrier bodies
- FIG. 14 is a plan view of a brush head with a 1. alternative arrangement of the carrier body
- 16 is a plan view of a brush head with a third alternative arrangement of the carrier body
- 17 is a plan view of a brush head with a positive connection of a carrier body
- Fig. 18 shows the section XVIII-XVIII in Figure 17 and
- Fig. 19 is a figure 18 corresponding representation with deformed carrier bodies.
- 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, followed by a stalk-like handle in a conventional manner to a right-side connecting portion IIa according to FIG.
- the brush head 11 consists of a first plastic, which is relatively rigid.
- two recesses 12 are formed, which completely fill the brush head 11. constantly penetrate and are completely closed over its circumference, that are surrounded on all sides of the brush head 11.
- a carrier body 13 is arranged, which consists of a 2. Kunststoffmateri- al, compared to the first plastic material of the
- Brush head 11 is deformation soft.
- 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 sections 13a which comprise only a part of the outer circumference of the respective support body 12, while in the remaining sections of the outer periphery the support body 13 between this and the inner wall 14 of the recess 12, a gap 19 is formed.
- the handle, not shown portion facing away from the brush head 11 of the local support body 13 is connected only at its rear, the handle end facing via a connecting portion 13a with the adjacent inner wall 14 of the recess 12.
- the carrier body 13 can move in the direction away from the bristle facing 17 in the manner of a one-sided clamped plate, as shown in FIG.
- 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 at its front, facing the head connecting portion 13a and on its opposite side to a handle facing connecting portion 13b materially connected to the inner wall 14 of the associated recess 12, while at its other sides of the Wall 14 of the recess 12 is spaced apart to form a respective gap 19.
- the support body 13 is in static terms a held on opposite sides plate, which leads to deformation of the support body 13 in the central region in the direction facing the edge trim 17 when applying a compressive force at the free ends of the bristle bundles 18, such as it is shown in FIG.
- the exemplary embodiment illustrated in FIGS. 4 and 5 differs from the aforementioned exemplary embodiment only by the length of the bristle bundles 18 of the bristle facing 17. While in the exemplary embodiment according to FIGS. 1 to 3 all bundles of bristles 18 have the same length and thus that on the carrier bodies 13 arranged bristle bundles 18 in deformation of the carrier body 13 are drawn into the bristle 17 and thus to a lesser extent from the top of the bristle head 11 protrude forth (see Figure 3), is provided in the embodiment according to Figures 4 and 5, that the 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 bristle bundles arranged on the carrier bodies 13 is adapted to the deformation behavior of the carrier bodies 13.
- the carrier body 13 on the left according to FIG. 4 which is structurally a plate held on one side
- the boron ten bundle at the near the connecting portion 13 a lying end shorter than the bristle bundles, which lie at the free, the connecting portion 13 a remote from the end.
- the bristle bundles 18 in the other support body 13, which is a double-sided plate are shorter near the connecting portions 13a and 13b than in the middle portion where the largest deformation occurs.
- all of the bundles of bristles 18 protrude with their ends about the same extent from the brush head 11 when the carrier body 13 is deformed, as shown in FIG.
- the carrier bodies 13 were in their connecting sections 13a and 13b respectively over the entire height of the recess
- the carrier body 13 In order to change the deformation properties of the carrier body 13, it may be provided to reduce the height of the connecting portions 13a and 13b, as shown in Figures 6 and 7. In this case, according to FIG. 6, the left, front carrier body 13 is only materially connected to the inner wall 14 of the recess 12 in the upper third of its height, a gap 15 being formed between the carrier body 13 and the inner wall 14 underneath this connecting portion 13 a Carrier body 13 additionally supported, as shown in Figure 7.
- 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 to the inner wall 14 only in the upper third of its height, wherein below the connection
- 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 training of the connecting sections in the upper half of the height of the recess, in the two upper thirds of the height of 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, the parts which are identical to the previous embodiments being given 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 areas, the connecting portions are formed in the embodiment of Figure 8 by narrow, linear connecting webs 13c.
- a connecting web 13c extending into the recess 12 is provided on the side facing the handle, so that the carrier body 13 is connected to the brush head via three linear, relatively thin connecting sections 11 is held.
- 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.
- the thickness of the carrier bodies 13 is also significantly smaller than the depth of the recess 12 and comprises approximately half thereof, the carrier body 13 being connected in the upper region of the recess 12 facing the bristle facing 17.
- the middle support body 13 according to FIG. 8 is connected only on the two lateral ends lying on the longitudinal edges of the brush head 11 via two connecting edges 13c on the corner and likewise lies only in the upper half of the recess 12 (see FIG. 10).
- carrier body 13 differs from the left carrier body essentially in that the connecting surface is again substantially reduced by the connecting webs 13c are less than the height of the carrier body 13.
- 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 shown in Figure 11, remain within the recess 12 and not or only by a small amount on the bristle facing away Side emerge from the recess 12.
- Figures 12 and 13 correspond to the illustrations in Figure 10 and 11 and are complemented by the recesses 12 are closed on the side facing away from the bristle facing with a cover plate 16 which is either integrally formed with the brush head 11 or subsequently attached thereto. Due to the cover plate 16 is reliably avoided that the carrier body 13th in their deformed state on the side facing away from the bristle trim 17 emerge from the recess 12.
- FIGS. 14, 15 and 16 show possible attachment geometries for a carrier body 13 on the surrounding inner wall 14 of the recess 12.
- the middle carrier body 13 shown in FIG. 14 is snugly fitted into the associated recess 12 and fastened to it over its entire circumference ,
- an all-sided held plate is given.
- this carrier body is connected to the recess 12 only at its side surfaces facing the longitudinal edges of the brush head 11, while a gap 19 is formed between the carrier body 13 and the recess 12 on the two other sides.
- the same support body is also held only at the two opposite ends 11 pointing to the longitudinal sides of the brush head, but in contrast to the embodiment according to FIG. 15, only a relatively thin central connecting web 13c is now provided there allows the carrier body 13 performs deformation movements in different directions.
- the left according to Figure 14 carrier body is connected on all its side surfaces via a respective connecting web 13c with the surrounding inner wall 14 of the recess 12.
- this carrier body is connected only on the side facing the handle to the recess 12 via a large-area connecting portion 13a, while the other sides are spaced from the recess to form the gap 19.
- the left-hand carrier body is only over in two corner regions each connected to an elongated connecting web 13c.
- the right-hand support body 13 according to FIG. 14 is in contact with the inner wall 14 of the recess 12 only on its side facing the center of the brush head 11 via a central, vertically extending connecting web 13c, so that the support body 13 can execute relatively large deformations.
- the same carrier body is connected in the embodiment according to FIG 15 on its entire, the center of the brush head 11 side facing the recess 12.
- the configuration of this support body according to Figure 16 differs from the embodiment of Figure 14 essentially in that additional borrowed to the central connecting web 13c on the middle of the brush head 11 side facing also in the corner regions each have a connecting web 13c is formed, however is connected to the pointing to the longitudinal sides of the brush head 11 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 shown in Figures 17 to 19.
- a so-called mushroom head 20 which forms an undercut, is formed on the inside of the left-hand recess 12.
- the carrier body 13 engages behind the mushroom head 20, so that the carrier body 13 in a form-fitting manner the brush head 11 is held.
- 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.
Landscapes
- Brushes (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12001077.2A EP2471408B1 (fr) | 2007-05-07 | 2008-05-05 | Brosse à dents |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710021314 DE102007021314A1 (de) | 2007-05-07 | 2007-05-07 | Zahnbürste |
PCT/EP2008/003583 WO2008135258A2 (fr) | 2007-05-07 | 2008-05-05 | Brosse à dents |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12001077.2 Division-Into | 2012-02-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2144528A2 true EP2144528A2 (fr) | 2010-01-20 |
EP2144528B1 EP2144528B1 (fr) | 2012-08-08 |
Family
ID=39829219
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08758381A Active EP2144528B1 (fr) | 2007-05-07 | 2008-05-05 | Brosse à dents |
EP12001077.2A Active EP2471408B1 (fr) | 2007-05-07 | 2008-05-05 | Brosse à dents |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12001077.2A Active EP2471408B1 (fr) | 2007-05-07 | 2008-05-05 | Brosse à dents |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP2144528B1 (fr) |
DE (1) | DE102007021314A1 (fr) |
ES (1) | ES2446380T3 (fr) |
WO (1) | WO2008135258A2 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102125353B (zh) * | 2010-01-20 | 2015-03-11 | 李宗鸿 | 多片刷毛组合更换牙刷 |
CN103260545B (zh) | 2010-12-13 | 2016-04-13 | 皇家飞利浦电子股份有限公司 | 具有可塑衬底的口腔卫生器具 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1233821B (de) * | 1964-10-02 | 1967-02-09 | Du Pont | Zahnbuerste |
US4240452A (en) * | 1979-09-13 | 1980-12-23 | Jean San Bau | Elastic base toothbrush |
FR2616306B1 (fr) * | 1987-06-15 | 1990-04-20 | Bois Jean | Brosse a dents mecanisee |
DE69231824T2 (de) * | 1991-03-27 | 2001-11-15 | Smithkline Beecham Consumer Healthcare Gmbh | Zahnbürste mit federnder Zone zwischen dem Zahnbürstenkopf und einem umliegenden Rahmen |
US5398366A (en) * | 1991-03-29 | 1995-03-21 | Bradley; Terry | Rocker toothbrush |
DE4122524A1 (de) * | 1991-07-08 | 1992-02-06 | Jens Pagel | Buerste mit flexiblen reibkoerpern, insbesondere borsten, die in ihren jeweiligen fussbereichen in elastischen lagern befestigt sind |
GB9414140D0 (en) | 1994-07-13 | 1994-08-31 | Procter & Gamble | Toothbrush |
DE19816098A1 (de) | 1998-04-09 | 1999-10-14 | Coronet Werke Gmbh | Reinigungsbürste, insbesondere Zahnbürste |
DE10259723A1 (de) * | 2002-12-19 | 2004-07-01 | Trisa Holding Ag | Zahnbürste und Verfahren zu deren Herstellung |
GB0317539D0 (en) * | 2003-07-25 | 2003-08-27 | Glaxosmithkline Consumer Healt | Toothbrush |
EP1639913B1 (fr) * | 2004-09-22 | 2011-11-23 | Trisa Holding AG | Brosse, notamment brosse à dents et procédé de fabrication |
-
2007
- 2007-05-07 DE DE200710021314 patent/DE102007021314A1/de not_active Withdrawn
-
2008
- 2008-05-05 EP EP08758381A patent/EP2144528B1/fr active Active
- 2008-05-05 EP EP12001077.2A patent/EP2471408B1/fr active Active
- 2008-05-05 ES ES12001077T patent/ES2446380T3/es active Active
- 2008-05-05 WO PCT/EP2008/003583 patent/WO2008135258A2/fr active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2008135258A2 * |
Also Published As
Publication number | Publication date |
---|---|
EP2471408B1 (fr) | 2013-11-13 |
EP2144528B1 (fr) | 2012-08-08 |
EP2471408A2 (fr) | 2012-07-04 |
ES2446380T3 (es) | 2014-03-07 |
EP2471408A3 (fr) | 2012-10-10 |
WO2008135258A2 (fr) | 2008-11-13 |
WO2008135258A3 (fr) | 2009-01-22 |
DE102007021314A1 (de) | 2008-11-13 |
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