CA2735548A1 - Blind-end holes configuration for a toothbrush - Google Patents

Blind-end holes configuration for a toothbrush Download PDF

Info

Publication number
CA2735548A1
CA2735548A1 CA2735548A CA2735548A CA2735548A1 CA 2735548 A1 CA2735548 A1 CA 2735548A1 CA 2735548 A CA2735548 A CA 2735548A CA 2735548 A CA2735548 A CA 2735548A CA 2735548 A1 CA2735548 A1 CA 2735548A1
Authority
CA
Canada
Prior art keywords
head
blind
toothbrush according
hard plastic
rear side
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
Application number
CA2735548A
Other languages
French (fr)
Other versions
CA2735548C (en
Inventor
Christian Stief
Martin Haas
Jens Stoerkel
Florian Stich
Ulrich Pfeifer
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 CA2735548A1 publication Critical patent/CA2735548A1/en
Application granted granted Critical
Publication of CA2735548C publication Critical patent/CA2735548C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • A46B15/0002—Arrangements for enhancing monitoring or controlling the brushing process
    • A46B15/0016—Arrangements for enhancing monitoring or controlling the brushing process with enhancing means
    • A46B15/0034—Arrangements for enhancing monitoring or controlling the brushing process with enhancing means with a source of radiation, e.g. UV, IR, LASER, X-ray for irradiating the teeth and associated surfaces
    • 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
    • A46B9/025—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups the bristles or the tufts being arranged in an angled position relative to each other
    • 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
    • A46B9/028—Bristle profile, the end of the bristle defining a surface other than a single plane or deviating from a simple geometric form, e.g. cylinder, sphere or cone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • 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
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Optics & Photonics (AREA)
  • Geometry (AREA)
  • Brushes (AREA)

Abstract

The present invention is directed to a toothbrush having a handle portion, a neck portion and a head (1), said head (1) being provided with bristle tufts (6) arranged in a complex internal geometry by means of the stapling technique. To enable a visually flawless molding to be produced, material cross-sections in the head (1), in particular in the area of the blind-end holes (11, 12) provided for tufting, are taken into consideration.

Claims (14)

1. A toothbrush having a handle portion and a neck portion connecting the handle portion with a head (1), said head (1) having a brushing side (5) and a rear side (21) opposite thereto, said brushing side (5) including a plurality of bristle tufts (6) for cleaning the teeth, said tufts being attachable in the head (1) through tufting apertures (10) using an anchor (15), with each tufting aperture being (10) assigned a blind-end hole (11, 12, 13, 14) having sidewalls (16) and a bottom (17, 18), wherein provision is made for a chamfer or radius (19) in the transition area between the bottom (17, 18) and the sidewalls (16), with a cross-sectional area of the head (1) between a first bottom (17, 18) and the rear side (21) differing from a cross-sectional area of the head between a second bottom (17, 18) and the rear side (21), and said first bottom and said second bottom (17, 18) being arranged in the head in such a way that the minimum distance y between the first bottom (17, 18) and the rear side (21) as well as the minimum distance x between the second bottom (17, 18) and the rear side (21) are each in the range of between 0.5 and 2.5 mm.
2. The toothbrush according to claim 1, characterized in that the first and the second bottom (17, 18) are arranged in the head (1) in such a way that the minimum distance x and y amounts to between 0.8 and 2 mm each.
3. The toothbrush according to claim 1 or 2, characterized in that the head (1) includes third and fourth blind-end holes (11, 12) which can be tufted with bristle tufts (6a) to the same depth, said third and fourth blind-end holes (11, 12) being constructed such that their bottoms (17, 18) extend to different depths.
4. The toothbrush according to claim 3, characterized in that in the fourth blind-end hole (12) the chamfer or radius (19) is followed by a constriction (20) and an adjoining further radius or chamfer (19) and thereafter by the adjoining bottom (18).
5. The toothbrush according to at least one of the preceding claims, characterized in that the head (1) has a first interior region and a second interior region, said first interior region (9) being made of hard plastic and said second interior region including an electrically operable function element (4) or part thereof.
6. The toothbrush according to claim 5, characterized in that provision is made for an injection point for the hard plastic of the head (1) on the neck or on the handle portion and that the blind-end holes (11, 12, 13, 14) are spaced at different relative axial distances to the injection point on the head (1), and that in the hard plastic of the head (1) a free space is provided for the function element (4) between said blind-end holes (11, 12, 13, 14) spaced at different relative distances.
7. The toothbrush according to at least one of the preceding claims, characterized in that the head includes at least one fifth blind-end hole (13) which is arranged adjacent to and above the function element (4) and is shorter than the third and fourth blind-end holes (11, 12, 14).
8. The toothbrush according to at least one of the preceding claims, characterized in that the rear side of the head (1) is made at least in part of the same hard plastic as the brushing side (5).
9. The toothbrush according to at least one of the preceding claims, characterized in that the head is formed of a hard plastic material which exhibits more than 1% material shrinkage after an injection-molding operation.
10. The toothbrush according to at least one of the preceding claims, characterized in that the head is formed of polypropylene hard plastic.
11. The toothbrush according to at least one of the claims 1 to 9, characterized in that the head is formed of polyethylene, POM, SAN or copolyester hard plastic.
12. The toothbrush according to at least one of the preceding claims, characterized in that the head (1) includes first and second bristle tufts (6a, 6b, 6c) of different lengths from the bottom (17) of the blind-end hole to the bristle end, said first and second bristle tufts (6a, 6b, 6c) being of approximately equal length from the brushing side (5) to the bristle end.
13. The toothbrush according to at least one of the preceding claims, characterized in that provision is made in the head for at least one blind-end hole having its central axis arranged at an angle to the perpendicular on the brushing side.
14. A method of manufacturing a toothbrush according to claim 1.
CA2735548A 2008-09-01 2009-09-01 Blind-end holes configuration for a toothbrush Expired - Fee Related CA2735548C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP08015420.6 2008-09-01
EP20080015420 EP2158820B1 (en) 2008-09-01 2008-09-01 Toothbrush and method for its manufacture
PCT/IB2009/053813 WO2010023644A1 (en) 2008-09-01 2009-09-01 Toothbrush and method of manufacturing it

Publications (2)

Publication Number Publication Date
CA2735548A1 true CA2735548A1 (en) 2010-03-04
CA2735548C CA2735548C (en) 2014-11-04

Family

ID=40427304

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2735548A Expired - Fee Related CA2735548C (en) 2008-09-01 2009-09-01 Blind-end holes configuration for a toothbrush

Country Status (8)

Country Link
EP (2) EP2862478B1 (en)
JP (1) JP5485274B2 (en)
KR (1) KR101398251B1 (en)
CN (1) CN102137605B (en)
CA (1) CA2735548C (en)
ES (1) ES2582155T3 (en)
PL (1) PL2862478T3 (en)
WO (1) WO2010023644A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2014277704B2 (en) * 2010-09-30 2016-03-24 Colgate-Palmolive Company Oral care implement
MX338599B (en) * 2010-09-30 2016-04-22 Colgate Palmolive Co Oral care implement.
EP2554353B1 (en) * 2011-08-05 2017-06-07 Trisa Holding AG Tooth brush and method for the manufacture of a tooth brush
KR200473102Y1 (en) * 2012-11-13 2014-06-18 (주)아모레퍼시픽 Toothbrush transplant structure
USD769626S1 (en) 2013-12-19 2016-10-25 Colgate-Palmolive Company Refill head for electric toothbrush
USD766581S1 (en) 2013-12-19 2016-09-20 Colgate-Palmolive Company Electric toothbrush handle
USD776435S1 (en) 2013-12-19 2017-01-17 Colgate-Palmolive Company Head portion of a toothbrush
USD794333S1 (en) 2015-11-25 2017-08-15 Colgate-Palmolive Company Electric toothbrush brush head
USD790860S1 (en) 2015-11-25 2017-07-04 Colgate-Palmolive Company Electric toothbrush brush head
EP3753446A1 (en) * 2019-06-21 2020-12-23 The Procter & Gamble Company Cleaning element carrier and toothbrush head comprising it
EP3753447A1 (en) 2019-06-21 2020-12-23 The Procter & Gamble Company Method for producing a toothbrush head or a part thereof

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229318A (en) * 1964-05-15 1966-01-18 Sunbeam Corp Toothbrush
US6138315A (en) * 1998-01-13 2000-10-31 Chesebrough-Pond's Usa Co., Divison Of Conopco, Inc. Antimicrobial active compounds
DE10221786A1 (en) 2002-05-15 2003-11-27 Schiffer Fa M & C Toothbrush construction comprises plastic layers of different hardness with bristles embedded in one layer and passing through the other
US6902397B2 (en) * 2002-08-01 2005-06-07 Sunstar Americas, Inc. Enhanced dental hygiene system with direct UVA photoexcitation
JP2004073730A (en) * 2002-08-22 2004-03-11 Lion Corp Toothbrush
US20040177462A1 (en) * 2003-03-14 2004-09-16 The Gillette Company Toothbrush head
DE10331369B4 (en) * 2003-07-11 2010-09-16 Braun Gmbh toothbrush
JP4251942B2 (en) * 2003-08-21 2009-04-08 花王株式会社 Brush manufacturing method
WO2005084486A1 (en) * 2004-03-09 2005-09-15 Glaxosmithkline Consumer Healthcare Gmbh & Co Kg Toothbrush
DE102004020706A1 (en) * 2004-04-28 2005-11-24 M + C Schiffer Gmbh Toothbrush comprising two differently movable areas and method for production of toothbrush
US8042217B2 (en) 2004-11-02 2011-10-25 Colgate-Palmolive Company Toothbrush and method of making the same
JP2007006938A (en) * 2005-06-28 2007-01-18 Lion Corp Toothbrush
ES2427161T5 (en) 2006-11-13 2018-01-22 The Procter & Gamble Company Products and methods to reveal conditions in the oral cavity

Also Published As

Publication number Publication date
EP2862478B1 (en) 2016-04-13
EP2862478A1 (en) 2015-04-22
KR20110050693A (en) 2011-05-16
CN102137605A (en) 2011-07-27
EP2158820A1 (en) 2010-03-03
CA2735548C (en) 2014-11-04
JP2012500705A (en) 2012-01-12
CN102137605B (en) 2014-07-30
WO2010023644A9 (en) 2010-06-17
JP5485274B2 (en) 2014-05-07
ES2582155T3 (en) 2016-09-09
EP2158820B1 (en) 2015-05-06
PL2862478T3 (en) 2017-01-31
WO2010023644A1 (en) 2010-03-04
KR101398251B1 (en) 2014-05-22

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20220301

MKLA Lapsed

Effective date: 20200901