EP1646299B1 - Handzahnbürste - Google Patents

Handzahnbürste Download PDF

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Publication number
EP1646299B1
EP1646299B1 EP03815811A EP03815811A EP1646299B1 EP 1646299 B1 EP1646299 B1 EP 1646299B1 EP 03815811 A EP03815811 A EP 03815811A EP 03815811 A EP03815811 A EP 03815811A EP 1646299 B1 EP1646299 B1 EP 1646299B1
Authority
EP
European Patent Office
Prior art keywords
bristle tufts
group
bristle
manual toothbrush
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.)
Expired - Lifetime
Application number
EP03815811A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1646299A1 (de
Inventor
Petra Ansari
Conrad Berghammer
Andreas Birk
Gerhard Finger
Manfred Klawuhn
Joachim Klimeck
Joachim Wilhelm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Braun GmbH
Original Assignee
Braun GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Braun GmbH filed Critical Braun GmbH
Publication of EP1646299A1 publication Critical patent/EP1646299A1/de
Application granted granted Critical
Publication of EP1646299B1 publication Critical patent/EP1646299B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04—Arranged like in or for toothbrushes
    • A46B9/045—Arranged like in or for toothbrushes specially adapted for cleaning a plurality of tooth surfaces simultaneously
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S15/00—Brushing, scrubbing, and general cleaning
    • Y10S15/05—Varied length bristle

Definitions

  • the invention relates to a manual toothbrush according to the preamble of patent claim 1.
  • bristle tufts arranged on an annular surface protrude in the middle region of the toothbrush head from the surface on the surface of the toothbrush surface, all of which are inclined relative to the circumferential direction to the surface of the toothbrush head.
  • Radially within this bristle tufts are further tufts of bristles, which are arranged on a second annular surface of smaller diameter and which also run in the same direction as the outer bristle tufts inclined.
  • the object of the invention is therefore to provide a manual toothbrush, in which not only in an up and down movement but also in a reciprocating motion of the manual toothbrush during a cleaning process as many bristle tufts easily penetrate into the interdental spaces and clean them thoroughly. Furthermore, the lateral flanks of the teeth during a cleaning process should be cleaned very thoroughly.
  • a manual toothbrush is created, with which the interdental spaces and their side edges can be cleaned particularly well.
  • the outer bristle tufts arranged on an annular surface of the second group are inclined relative to the bristle tufts of the third group and are spatially separated from one another in the longitudinal direction.
  • those bristle tufts reach very well into the interdental spaces, which are inclined in the direction of movement of the manual toothbrush, while the bristle tufts, which run in an inclined manner relative to the direction of movement of the manual toothbrush, more or less clean the surface of the tooth flanks.
  • those bristle tufts arranged on the annular surface are particularly effectively in cleaning engagement, which in particular are arranged more or less at the edge region of the toothbrush head. This is particularly because individual bristle tufts in the direction of movement on the side edges run the toothbrush and therefore during the cleaning process on the interdental spaces or the tooth surface from above - similar to a scraper - push transversely against it and so particularly effectively remove the plaque from the tooth surface.
  • the bristle tufts inclined transversely thereto in the reciprocating motion of the manual toothbrush which are arranged more or less in the inner region of the toothbrush head, extend transversely to the direction of movement of the toothbrush and therefore bring about a more sliding effect on the end faces of the teeth, viewed from the side are easily accessible.
  • the first group of bristle tufts formed at the front free end of the toothbrush head takes over the cleaning of the rearmost molar region, since they are formed furthest forward upon penetration of the toothbrush head into an oral cavity.
  • the outer, formed on an annular surface bristle tufts are supported in their cleaning effect to the effect that when pressing the bristles against the tooth surface by the third group of bristle tufts from the inside obtained a supporting effect and thus better penetrate into the interdental spaces or better clean the front surfaces.
  • the third group of bristle tufts additionally cleans the front surfaces of the teeth area better, so that the outer bristle tufts not alone have to take over the cleaning work. This additionally increases the service life of the manual toothbrush.
  • a particularly uniform roughened, closed plaster surface is achieved at the free ends of the inner bristle tufts.
  • the free ends of the individual bristles of the bristle tufts engage in such a way due to their fine fiber structure that they can no longer be distinguished from each other.
  • the bristles of all inner bristle tufts form a common bristle tufts with only one common plaster surface, which can clean the tooth surface over a large area.
  • the Zahnputzober II the manual toothbrush is soft and elastic, ie, at a low contact pressure initially formed on the outer annular surface bristle tufts to rest against the tooth surfaces and when the contact pressure is increased to the tooth surface, those bristle tufts, which have not penetrated into a tooth space, so far that now reach the other, shorter bristle tufts used.
  • This condition is noted by an operator in that the manual toothbrush becomes harder on further pressurization. Then, namely, the contact pressure on the manual toothbrush must be increased considerably, if you bend all bristle tufts on the toothbrush head or to deform in order to obtain an intensive cleaning.
  • This bristle tuft arrangement improves the handling of the manual toothbrush, because this results in a better feed back to an operator, who can then respond quickly to higher or lower pressure.
  • the features of claim 7 ensure that the arranged between the second and third group of bristle tufts fourth group of bristle tufts in the cleaning movement supports the bristle tufts of the second and third groups in small margins side reinforcing, ie, they wear in addition to their own cleaning task for higher bending stiffness these bristle groups better and thus ensure a higher stability of the manual toothbrush according to the invention.
  • the features of claim 8 further support this effect, so that overall less wear on the bristle tufts of the manual toothbrush arises.
  • the bristle tufts of the fourth group are at the same level as the bristle tufts, which lie within the formed on an annular surface bristle tufts; but they can also be longer than the bristle tufts, which lie within the bristle tufts formed on the annular surface and thereby be shorter than the bristle tufts formed on the annular surface.
  • the bristle tufts are used simultaneously and harden the toothbrush surface of the bristle tufts
  • the bristle tufts are used slightly later, but they then still harden the toothbrush surface of the bristle tufts to a sufficient extent. They also form a supporting action for the bristle tufts of the first to third groups formed between these bristle tufts.
  • the features of claim 10 provide a support for the bristle tufts next coming bristle tufts of the second group. Due to the vertical arrangement of the bristle tufts of the fourth group, these can be arranged on the toothbrush head so that they come very close to the formed on the annular surface Börstenbüschel zoom to get the support effect right at the beginning of the cleaning process.
  • the cleaning result of the manual toothbrush according to the invention improves, because even the front portion of the toothbrush head reaches even deeper to the molars and also the rearmost region of the molars can clean better.
  • Due to the features of claim 12 reaches the brush end of the first group of bristle tufts with its inclined plane relatively flat on the toothbrush surface and thus causes a flat uniform cleaning of the molars, without having to constantly the pressure must be changed in conventional manual toothbrush maintenance.
  • a manual toothbrush 1 shown which consists of an elongate handle 2, a subsequent to the handle 2 and tapering in cross-section neck 3 and adjoining the neck 3 toothbrush head 4.
  • the toothbrush head 4 has a front end 5 and a rear end 6, between which from the surface 7 upwards ( Fig. 1 ) four groups 8 to 11 of bristle tufts 21 and 24 to 30 extend, as these also in an enlarged scale in the FIGS. 3 and 4 is shown.
  • a suitable for the thumb of an operator grip surface 13 is formed, which is easily embedded in the surface 12 and the transverse free from the rear end to the handle 2, raised Ridges 14 which consist of thermoplastic elastomer and which are slightly bent forward to the toothbrush head 4 out.
  • a further gripping surface 35 is formed, which is formed from transverse to the longitudinal axis of the manual toothbrush 1, lamellar ribs 16 which are very narrow and therefore give in Andrükken individual fingers, similar to a cushion.
  • the fine ribs 16 and the ribs 16 interconnecting substrate 17 is also made of thermoplastic elastomer and is sprayed onto the base body 18 of the handle 2 and is formed only in the front region and the side of the handle 2.
  • the manual toothbrush 1 is designed symmetrically and has a longitudinal axis of the manual toothbrush 1 extending symmetry or center axis 23.
  • the toothbrush head 4 has in plan view the shape of an elongated oval, the strongly curved end faces of which form the front and rear ends 5, 6.
  • the shelf 19 may be any surface of a furniture part.
  • the angle a between the shelf 19 and the surface 7 extends between 2 to 6 °, preferably 4 °.
  • FIGS. 1 to 4 joins the front end 5 a first group 8 of bristle tufts 21, which are inclined by the angle b with respect to the vertical to the surface 7 to the front.
  • the angle b extends between 5 and 9 °, preferably 7 °.
  • the free ends 22 of the bristle tufts 21 form a common plane, which extend obliquely upward with respect to the surface 7 by the angle c.
  • the angle c extends between 13 and 18 °, preferably at 15 °.
  • the foremost point E1 of the foremost bristle tufts 21 has a length L1 to the surface 7 of about 12 mm.
  • the last Point E2 of the two rearmost bristle tufts 21 has a length L2 to the surface 7 of 10.5 mm.
  • the bristle tufts 21 of the first group protrude from the surface 7 so that they according to the Figures 2 and 4 in plan view, all together define a substantially crescent-shaped cross-section.
  • the first group 8 is formed by six bristle tufts 21, of which five bristle tufts 21 extend parallel to the edge 38 and a bristle tufts 21 is located within these bristle tufts 21, so that this group 8 in plan view gives a substantially crescent-shaped appearance.
  • a fourth group 11 of bristle tufts 24 connects, which extend transversely to the center axis 23 of the manual toothbrush 1, as the Figures 2 and 4 demonstrate.
  • the fourth group 11 consists of three bristle tufts 24, which have substantially the same distance to the next adjacent bristle tufts 21 of the first group 8. They are therefore on a pitch circle diameter and extend symmetrically to the center axis 23, wherein the middle bristle tufts 24 is arranged directly in the center of the center axis 23.
  • the fourth group 11 of bristle tufts 24 closes after the FIGS. 1 to 4 the second group 9 of bristle tufts 25, which are arranged on a diameter D equidistant from each other and according to Fig. 2 are inclined counterclockwise at an angle f to the surface 7.
  • the angle f is 6 to 8 °, preferably about 7 °, while the diameter D is between 7 and 10 mm, preferably at 8.5 mm.
  • the bristle tufts 25 are arranged diametrically opposite one another and consist of eight to fourteen, preferably ten bristle tufts 25.
  • Radially inside, four bristle tufts 26 extend from the surface 7 from the second group 9 which likewise run diametrically opposite and whose center is the same center point M.
  • the bristle tufts 26 extend vertically from the surface 7 upwards. They lie on a common diameter D1 and are offset by 90 ° to each other, with two bristle tufts 26 extending centrally to the center axis 23.
  • this fourth group 9 is followed by a fourth group 11 of two bristle tufts 27, which run perpendicular to the center axis 23 and have the same distance from the center axis 23 and which extend vertically from the surface 7 upwards.
  • the bristle tufts 27 are followed by a third group 10 of bristle tufts 28, which likewise consists of ten bristle tufts 28 distributed uniformly on the circumference.
  • the Tufts 28 are not like the bristle tufts 25 counterclockwise, but circumferentially inclined by the angle g clockwise, which has the same inclination of 6 to 8 °, preferably 7 °, as already indicated for the angle f of the second group 9 has been.
  • the third group 10 is in turn followed by a fourth group 11 of three bristle tufts 30, of which the middle bristle tuft 30 extends centrally to the center axis 23.
  • the two outer bristle tufts 30 have the same distance from the center axis 23.
  • the bristle tufts 25 and 28 form a common plane E4 (FIG. FIG. 3 ), which runs parallel to the surface 7.
  • the distance L3 from the surface 7 to the plane E4 is 9 to 11 mm, preferably 10 mm.
  • the distance d from the plane E4 to the free surface 31 of the bristle tufts 30, 27, 24 of the fourth group 11 is the same and is 0.7 to 1.1 mm, preferably 0.9 mm.
  • the distance e from the plane E4 to the free surface 32 of the bristle tufts 29 and 26 is 1.2 to 1.8 mm, preferably 1.5 mm.
  • bristle tufts 25 and 28 have a diameter i of 1.6 mm, the diameters h of all other bristle tufts 21, 24, 26, 27, 29 and 30 are 1.9 mm.
  • the free ends 31, 32 of the bristle tufts 30, 27, 24 and 29 and 26 also extend parallel to the surface 7.
  • the bristle tufts 25 and 28 lie behind FIG. 4 on an imaginary annular surface 33 and 34, respectively, in FIG Fig. 4 are shown as thin lines.
  • the inner and outer diameter of the annular surfaces 33, 34 affect in the worst case, the side wall of the bristle tufts 25 and 28. In the other case, a distance between the edge of the bristle tufts 25 and 28 and the inner or outer diameter of the annular surfaces 33, 34 be present.
  • bristle tufts 25 and 28 more at the inner radius or more at the outer radius of the annular surface 33, 34 may be arranged.
  • bristle tufts 25 and 28 bristle tufts 26 and 29 are so close together that they, if the free ends 32 are frayed, form a nearly closed surface, but in the Figures 2 and 4 was not shown in order to represent the bristle tufts 26, 29 better in their basic cross-section.
  • the bristle tufts 24, 27, 30 of the fourth group 11 have a length L5 which extends from the surface 7 to their free ends 31.
  • the bristle tufts 26, 29 have a length L4 from the surface 7 to their free ends 32.
  • the length L4 is smaller than the length L5, which in turn is smaller than the length L3.
  • the measure L4 is calculated from L3 minus e, the measure L5 from L3 minus d.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Brushes (AREA)
EP03815811A 2003-07-19 2003-11-03 Handzahnbürste Expired - Lifetime EP1646299B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10332872A DE10332872A1 (de) 2003-07-19 2003-07-19 Handzahnbürste
PCT/EP2003/012199 WO2005018378A1 (de) 2003-07-19 2003-11-03 Handzahnbürste

Publications (2)

Publication Number Publication Date
EP1646299A1 EP1646299A1 (de) 2006-04-19
EP1646299B1 true EP1646299B1 (de) 2012-06-20

Family

ID=34041960

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03815811A Expired - Lifetime EP1646299B1 (de) 2003-07-19 2003-11-03 Handzahnbürste

Country Status (9)

Country Link
US (1) US7146675B2 (zh)
EP (1) EP1646299B1 (zh)
CN (1) CN100471416C (zh)
CA (1) CA2480120C (zh)
DE (1) DE10332872A1 (zh)
HK (1) HK1079064A1 (zh)
MX (1) MXPA05004508A (zh)
RU (1) RU2324412C2 (zh)
WO (1) WO2005018378A1 (zh)

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Also Published As

Publication number Publication date
WO2005018378A1 (de) 2005-03-03
CN100471416C (zh) 2009-03-25
CA2480120A1 (en) 2005-01-19
MXPA05004508A (es) 2005-07-26
RU2324412C2 (ru) 2008-05-20
CN1691906A (zh) 2005-11-02
US7146675B2 (en) 2006-12-12
CA2480120C (en) 2008-02-19
RU2004131571A (ru) 2005-09-10
EP1646299A1 (de) 2006-04-19
HK1079064A1 (en) 2006-03-31
US20050011031A1 (en) 2005-01-20
DE10332872A1 (de) 2005-02-17

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