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WO1996007343A1 - Brosse a dents presentant un profil de soies general tridimensionnel et des touffes exterieures dressees profilees - Google Patents

Brosse a dents presentant un profil de soies general tridimensionnel et des touffes exterieures dressees profilees Download PDF

Info

Publication number
WO1996007343A1
WO1996007343A1 PCT/US1995/011310 US9511310W WO9607343A1 WO 1996007343 A1 WO1996007343 A1 WO 1996007343A1 US 9511310 W US9511310 W US 9511310W WO 9607343 A1 WO9607343 A1 WO 9607343A1
Authority
WO
WIPO (PCT)
Prior art keywords
tufts
head
peaks
toothbrush
extending
Prior art date
Application number
PCT/US1995/011310
Other languages
English (en)
Inventor
Daniel William Volpenhein
Original Assignee
The Procter & Gamble Company
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 The Procter & Gamble Company filed Critical The Procter & Gamble Company
Priority to AU36275/95A priority Critical patent/AU3627595A/en
Publication of WO1996007343A1 publication Critical patent/WO1996007343A1/fr

Links

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
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Definitions

  • the present invention relates to toothbrushes, and more particularly, to toothbrushes which exhibit a three-dimensional bristle profile to provide improved cleaning in inter proximal areas without increasing gum irritation.
  • toothbrushes The fundamental purpose of toothbrushes is to remove plaque and debris from tooth surfaces, both along their outer surfaces and in the inter proximal areas as well as provide gum and inter dental stimulation. While most commercially available toothbrushes clean the outer surfaces of teeth adequately toothbrushes having a three- dimensional or "V" shaped profile, when viewed in side profile, render the toothbrush particularly adept at cleansing and stimulation.
  • a toothbrush which provides superior penetration/cleaning as well as gum and inter dental stimulation.
  • the toothbrush has an elongate member extending between two ends.
  • the elongate member has a head at one of its ends.
  • the head has a plurality of tufts comprising a multiplicity of bristles.
  • the tufts have proximal ends attached to the head, distal ends extending outwardly from the head and sides extending between the distal and proximal ends.
  • the distal ends of the tufts are angled downwardly from a peak so that adjacent tufts form a V shaped profile when looking at the side of the tufts.
  • the tufts are arranged on the head so as to define outer tufts, adjacent the outer perimeter of the head, and inner tufts. A predetermined number of the outer tufts have their peaks extending further away from the head than the peaks of all of the inner tufts so as to provide improved inter proximal penetration.
  • Figure 1 is a perspective view of a preferred embodiment of the toothbrush in accordance with the present invention.
  • Figure 2 is a simplified side view of the head of the toothbrush shown in
  • Figure 3 is a front view of the head of the toothbrush shown in Figure 1.
  • the present invention comprises a toothbrush 1, for achieving improved inter proximal cleaning and gum and inter dental stimulation.
  • Toothbrush 1 includes an elongate member 50 extending between two ends 2 and 3.
  • End 2 comprises a handle portion 4 and end 3 comprises a head S having outer perimeter 6.
  • Handle 4 preferably has a non-slip grip area 104 made from any suitable material known in the art including santoprene.
  • the handle portion 4 may comprise suitable attachment means (not shown) for securing the brush to the driving means.
  • Head S has a plurality of tufts 10 comprising a multiplicity of bristles 20.
  • the tufts 10 are disposed on the head so as to define outer tufts 18, adjacent the outer perimeter 6 of head 5, and inner tufts 19.
  • tufts 10 have proximal ends 11 attached to said head, distal ends 12 extending outwardly from head 5, and sides 13 extending between proximal end 11 and distal end 12.
  • distal ends 12 of tufts 10 are angled downwardly from peaks 14 so that adjacent tufts form a "V" shaped profile when looking at the sides 13.
  • a predetermined number of outer tufts 18 have distal ends which extend outwardly from the head a greater distance than the distal ends of the inner tufts 1 . This provides for improved inter proximal penetration, especially at the gum line. All of the bristles are preferably end rounded to protect gum tissue.
  • tufts 10 of toothbrush 1 form a straight-" V" shaped side profile having five peaks 14.
  • the total number of Ns preferably ranges from about three to about seven.
  • the distance from the top of one V to another preferably ranges from about 0.16 inches to about 0.30 inches, and even more preferably, from about 0J9 inches to about 0.25 inches.
  • the distance from the bottom to the top of the "V" is preferably about 0J4 inches with a range of from about 0.10 inches to about 0.17 inches. It is preferred that the tufts of each row are preferably aligned.
  • the longitudinal row spacing, the longitudinal distance between adjacent tufts 18, as measured in a direction parallel to the length of elongate member 2 preferably ranges from about 0.02 inches to about 0.08 inches, and even more preferably from about 0.04 inches to about 0.07 inches.
  • E - modulus of elasticity of the bristle material when wet e.g. for nylon this is a constant, 460,000 psi
  • the bristle stiffness preferably ranges from about 0.2 to about 0.8.
  • the diameter "D" bristles 20 preferably ranges from about 0.006 inches to about 0.009 inches.
  • Average bristle length preferably ranges from about 0.30 inches to about 0.55 inches and even more preferably from about 0.34 inches to about 0.44 inches.
  • the total number of bristles 20 in the head 5 preferably from about 1,200 to about 5,000, and even more preferably from about 1,600 to about 3,500.
  • Buttressing is the tendency of adjacent bristles to support or buttress each other.
  • the Buttress Factor of the brush is achieved by dividing the cross-sectional area taken up by the bristles 20 by the tctal cross sectional area of the tufts 10 at the base. Numerically, the preferred Buttress Factor for brushes of the present invention ranges from about 0.8 to about 0.96.
  • a preferred method of achieving end rounded bristles 20 in a "V" shaped format is to first square cut or shear a group of bristles pe ⁇ endicular to the length of the bristles. The cut ends of the bristles are then ground while in a common plane to remove any sharp or protruding edges from each bristle. The bristles are then moved relative to each other to produce a desired three-dimensional shape at the exposed end of the tuft. The attachment end of the bristles are then preferably square cut or sheared to the appropriate length. This method is further described in German Patent Application 3820372 which published on December 20, 1989, which is hereby inco ⁇ orated herein by reference.
  • the attachment end of the bristles is then preferably heated to form a molten mass and placed against the heated head. As the molten materials cool, the tufts are secured to the head.
  • the latter method is further described in United States Patent 4,637,660 which issued on January 20, 1987 to Weihrauch, which is also hereby inco ⁇ orated herein by reference.
  • outer tufts 19 on head 5 have distal ends which extend above all of the distal ends of the inner tufts.
  • the outer tufts which have their distal ends extending above all of the distal ends of the inner tufts are those most adjacent the elongate member 50. This provides for greater independent bristle action at the gum line for improved inter proximal penetration and cleaning.
  • the extended outer tufts can ride along the gum line and penetrate and clean with reduced interference from the inner tufts.
  • For a full size head of an adult tooth brush there are preferably 24 outer tufts, 12 on each side, of which half (12) of the outer tufts are extended above the inner tufts.
  • the back 6 tufts on either side are the ones which are extended.
  • the extended outer tufts are preferably have from about 0.5mm to about 2mm higher peak than the peaks of the inner tufts and they are most preferably have about 1mm higher peak than the inner tufts.
  • the inner tufts have a peak height of about 11.5mm. The ratio of the peak height of the inner tufts versus the peak height of the extended outer tufts ranges from about 0.85 to about 0.96.

Landscapes

  • Brushes (AREA)

Abstract

La brosse à dent présente un élément allongé (50) s'étendant entre deux extrémités. L'élément allongé (50) comporte une tête (5) au niveau d'une de ses extrémités. La tête (5) comporte une pluralité de touffes (10) comprenant une multiplicité de soies (20). Les touffes (10) présentent des extrémités proximales (11) fixées à la tête (5), des extrémités distales (12) s'étendant à l'extérieur de ladite tête (5) ainsi que des côtés s'étendant entre les extrémités distales et proximales (12). Les extrémités distales (12) des touffes (10) présentent un angle descendant à partir d'une pointe de sorte que les touffes adjacentes forment un profil en V lorsqu'on observe lesdites touffes de côté. Les touffes (10) sont agencées sur la tête (5) de manière à définir des touffes extérieures (18), adjacentes au périmètre extérieur de la tête (5), et des touffes intérieures (19). La pointe d'un nombre prédéterminé des touffes extérieures (18) s'étend davantage à l'opposé de la tête (5) que toutes les pointes des touffes intérieures (19) afin de permettre une pénétration interproximale améliorée.
PCT/US1995/011310 1994-09-09 1995-09-06 Brosse a dents presentant un profil de soies general tridimensionnel et des touffes exterieures dressees profilees WO1996007343A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU36275/95A AU3627595A (en) 1994-09-09 1995-09-06 Toothbrush exhibiting a general three-dimensional bristle profile and having raised profiled outer tufts

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US30397994A 1994-09-09 1994-09-09
US08/303,979 1994-09-09
US30430494A 1994-09-12 1994-09-12
US08/304,304 1994-09-12

Publications (1)

Publication Number Publication Date
WO1996007343A1 true WO1996007343A1 (fr) 1996-03-14

Family

ID=26973753

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/011310 WO1996007343A1 (fr) 1994-09-09 1995-09-06 Brosse a dents presentant un profil de soies general tridimensionnel et des touffes exterieures dressees profilees

Country Status (3)

Country Link
AU (1) AU3627595A (fr)
TR (1) TR199501105A2 (fr)
WO (1) WO1996007343A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998005239A1 (fr) 1996-08-02 1998-02-12 The Procter & Gamble Company Brosse a dents
WO1998007348A3 (fr) * 1996-08-20 1998-08-27 Procter & Gamble Brosse a dents a profilage de poils multidirectionnel
WO2004026074A1 (fr) * 2002-08-23 2004-04-01 F.A. Rueb Holding Gmbh Brosse a dents comportant un champ de poils
USD536876S1 (en) 2003-02-03 2007-02-20 Church & Dwight Co., Inc. Head portion of a toothbrush
EP2322054A1 (fr) 1996-08-02 2011-05-18 The Procter & Gamble Company Brosse à dents

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3934298A (en) * 1974-04-23 1976-01-27 Kim James S H Toothbrush
FR2548528A1 (fr) * 1983-07-08 1985-01-11 Jouvin Jean Luc Brosse a dents perfectionnee
US4894880A (en) * 1989-02-03 1990-01-23 Aznavoorian Martin P Tooth brush
DE9303673U1 (de) * 1993-03-12 1993-05-06 Vereinigte Bürstenfabriken GmbH, 7868 Todtnau Zahnbürste
US5392483A (en) * 1994-07-07 1995-02-28 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Multi-level bristle tuft toothbrush

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3934298A (en) * 1974-04-23 1976-01-27 Kim James S H Toothbrush
FR2548528A1 (fr) * 1983-07-08 1985-01-11 Jouvin Jean Luc Brosse a dents perfectionnee
US4894880A (en) * 1989-02-03 1990-01-23 Aznavoorian Martin P Tooth brush
DE9303673U1 (de) * 1993-03-12 1993-05-06 Vereinigte Bürstenfabriken GmbH, 7868 Todtnau Zahnbürste
US5392483A (en) * 1994-07-07 1995-02-28 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Multi-level bristle tuft toothbrush

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998005239A1 (fr) 1996-08-02 1998-02-12 The Procter & Gamble Company Brosse a dents
EP2322054A1 (fr) 1996-08-02 2011-05-18 The Procter & Gamble Company Brosse à dents
EP2327329A1 (fr) 1996-08-02 2011-06-01 The Procter & Gamble Company Brosse à dents
EP2327330A1 (fr) 1996-08-02 2011-06-01 The Procter & Gamble Company Brosse à dents
WO1998007348A3 (fr) * 1996-08-20 1998-08-27 Procter & Gamble Brosse a dents a profilage de poils multidirectionnel
WO2004026074A1 (fr) * 2002-08-23 2004-04-01 F.A. Rueb Holding Gmbh Brosse a dents comportant un champ de poils
USD536876S1 (en) 2003-02-03 2007-02-20 Church & Dwight Co., Inc. Head portion of a toothbrush
USD563106S1 (en) 2003-02-03 2008-03-04 Church & Dwight Co., Inc. Head portion of a toothbrush

Also Published As

Publication number Publication date
TR199501105A2 (tr) 1996-07-21
AU3627595A (en) 1996-03-27

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