JP2008093449A - Toothbrush - Google Patents

Toothbrush Download PDF

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Publication number
JP2008093449A
JP2008093449A JP2007264749A JP2007264749A JP2008093449A JP 2008093449 A JP2008093449 A JP 2008093449A JP 2007264749 A JP2007264749 A JP 2007264749A JP 2007264749 A JP2007264749 A JP 2007264749A JP 2008093449 A JP2008093449 A JP 2008093449A
Authority
JP
Japan
Prior art keywords
head
tuft
tufts
toothbrush
handle
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.)
Pending
Application number
JP2007264749A
Other languages
Japanese (ja)
Inventor
Donna Beals
Bradley Castillo
Thomas Craig Masterman
Michael Roberts
Maisie Wong-Paredes
トーマス.クレイグ、マスターマン
ドンナ、ビールズ
ブラッドリー、カスティーロ
マイケル、ロバーツ
メイジ、ウォング‐パレデス
Original Assignee
Gillette Canada Inc
ジレット、カナダ、インコーポレーテッドGillette Canada Inc.
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
Family has litigation
Priority to US96829397A priority Critical
Priority to US09/177,991 priority patent/US6308367B1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26873851&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JP2008093449(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Gillette Canada Inc, ジレット、カナダ、インコーポレーテッドGillette Canada Inc. filed Critical Gillette Canada Inc
Publication of JP2008093449A publication Critical patent/JP2008093449A/en
Application status is Pending legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04Arranged like in or for toothbrushes
    • A46B9/045Arranged like in or for toothbrushes specially adapted for cleaning a plurality of tooth surfaces simultaneously
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B5/00Brush bodies; Handles integral with brushware
    • A46B5/02Brush bodies; Handles integral with brushware specially shaped for holding by the hand
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B5/00Brush bodies; Handles integral with brushware
    • A46B5/02Brush bodies; Handles integral with brushware specially shaped for holding by the hand
    • A46B5/026Grips or handles having a nonslip section
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B9/00Arrangements of the bristles in the brush body
    • A46B9/02Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/04Arranged like in or for toothbrushes
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B2200/00Brushes characterized by their functions, uses or applications
    • A46B2200/10For human or animal care
    • A46B2200/1066Toothbrush for cleaning the teeth or dentures

Abstract

<P>PROBLEM TO BE SOLVED: To provide a toothbrush which provides improved cleaning of round flat plaque around the gum, debris, interproximal areas, lingual surfaces and other hard to reach areas of the mouth. <P>SOLUTION: This toothbrush comprises a handle, a head extending from the handle, and a plurality of tufts of bristles secured to the head. One of the tufts is secured to the head at a location such that no other tuft is secured to the head at a location which is more distal from the handle than the location where the one tuft is secured to the head. The one tuft is angled by about 81 degrees or less relative to an imaginary line which is tangent to or co-planar with a surface of the head through which the one tuft is secured to the head. The one tuft is tilted away from the handle towards a direction along which the head extends from the handle. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates generally to the field of oral care, and in particular to toothbrushes. The invention further relates to a toothbrush having a three-dimensional bristle profile to provide improved cleaning of the roots of the teeth and the edges of the gums.

  Tooth brushing and flossing are the basic steps for good oral hygiene. Unfortunately, although the general public understands that flossing should be done as part of good oral hygiene, it is unfortunately not widely accepted by the general public It was. Furthermore, even a person who flosses occasionally cannot properly floss to reach the entire mouth. Unfortunately, many commercially useful toothbrushes can clean the buccal surface on the outside of the tooth, but the plague, debris, and root Improved cleaning could not be performed on the middle part, the face facing the tongue and the other difficult to reach parts in the mouth.

  One reason that such toothbrushes cannot properly clean the rearmost molars (eg, wisdom or second molars) is that one or more tufts attached to the toothbrush head located distally from the toothbrush handle. ) Is not angled in the direction along the head extending from the handle, i.e. not bent. Thus, the tuft is not sufficiently extended beyond the end of the toothbrush head to sufficiently clean the molars behind the mouth.

  Furthermore, in the brush, which has a tuft of hair that is angled or bent with respect to the handle and the other tufts are bent away from the handle, all such tufts are essentially the same length, Have the same cross section. As a result, such bent tresses can be cleaned in a way that satisfies part of the teeth, but other parts of the teeth can be cleaned sufficiently because the tresses have a uniform length, spacing and cross-section. There wasn't.

  In addition, some conventional toothbrushes have at most three tufts of bristle with different types of cross-sections. However, there are more than three parts of the tooth that need to be cleaned with a brush (for example, the outer cheek-facing surface, the gum rim, the root, the tongue-facing surface, and the rearmost molar). Thus, conventional brushes did not have fully varying cross-section tufts specially designed to clean all parts of the teeth.

  The present invention is intended to overcome one or more of the problems set forth above.

  Briefly summarizing one aspect of the present invention, a toothbrush comprises a handle, a head extending from the handle, and a plurality of tufts of bristles fixed or attached to the head. One of the tufts is secured at a position that is more distal to the handle than a position at which one tuft is secured to the head and at a position where no other tuft is secured. One tuft is angled or bent about 81 ° or less with respect to an imaginary line that is tangent to or coplanar with the surface of the head via one tuft secured to the head. One tuft is inclined so that the head is away from the handle relative to the direction along the head extending from the handle.

  By bending a single tuft as described above, the tuft can extend beyond the end of the head of the toothbrush, thereby making the molars behind the mouth sufficiently clean.

  According to another aspect of the invention, the toothbrush includes a handle, a head extending from the handle, and a plurality of tufts of hair secured to the head. Two of the tufts each form an acute angle with respect to a virtual line that is tangent to or coplanar with the surface of the head via the two tufts fixed to the head. The two tufts have different characteristics selected from the group of properties consisting of length, cross-section, color, material, and combinations thereof.

  Providing a bent tuft that varies in length, cross-section, color, material, and combination can clean more than a portion of the tooth with this bent tuft. For example, one type of bent tress can clean the buccal surface of the teeth, and the other type of bent tress can clean the roots of the teeth.

  A third aspect of the present invention is to provide a toothbrush comprising a handle, a head extending from the handle, and various tufts of hairs secured to the head. Tuft diversity comprises tufts with at least five different types of cross sections.

  By providing a tuft having at least five types of cross-sections, such tuft is suitably suitable for all parts of the tooth (eg, the outer face facing the cheek, the rim of the gums, the part between the roots, the face facing the tongue). And the rearmost molar).

  These and other aspects, objects, features and advantages of the present invention will be clearly understood from the following detailed description of the preferred embodiments of the invention, the appended claims, and the description based on the accompanying drawings. Let's go.

  1 to 3, the toothbrush 10 has a handle portion 12 and a head portion 14 extending in the D direction from the handle. The overall length of the toothbrush 10 is preferably about 7.7 inches, and the width of the head 14 is preferably about 0.5 inches at the widest portion. The main portion 16 and the head 14 of the handle 12 are composed of a single piece of polypropylene. The thumb grip portion 18, optional trademark 24 (preferably about 0.83 inches long) and other portions including the finger grip portion 20 are preferably thermoplastic elastomers, preferably kraton rubber ( Styrene and butadiene or isoprene hydrogenated or non-hydrogenated oil-filled block copolymers having a Shore A hardness of between about 5 and about 70). The thumb grip portion 18 and the finger grip portion 20 have a series of 17 raised ribs 22 that aid in gripping the handle. The ribs 22 are preferably 1.27 mm (0.05 inches) wide.

  3-7, the plurality of tufts 26 of hair are secured or attached to the head 14 of the toothbrush. Each tress is made up of a number of hairs, preferably all hairs are rounded at the ends. Five different types of tufts are affixed to the head and each tuft has a cross-section that differs in area and shape from the other tufts.

The first mold 28 of the tuft is composed of hair made of PBT with an abrasive such as kaolin clay molecules mixed throughout polybutylene terephthalate (PBT). Such bristles are between 0.127 mm and 0.229 mm (0.005 to 0.009 inches) in diameter, preferably 0.178 mm (0.007 inches) in diameter. The length of the hair measured from the face 30 of the head 14 is about 0.440 inches. The tufted cross section of tuft 28 is about 24.06 mm 2 (0.0373 square inch), and the tuft volume measured from the head surface is about 0.269 m 3 (0.0164 cubic inch) (this volume). Is preferably between about 0.246 cm 3 and 0.295 cm 3 (0.015 to 0.018 cubic inches). Only one mold 28 tuft is attached to the head 14, which is farthest from the handle 14 than the other tufts.

The second mold 32 of the tuft is made from the hair of the nylon indicator ™ mold and is made of 6.12 nylon and the outer surface is colored blue. As is well known to those skilled in the art, the blue coloration of such bristles will gradually wear out when the brush is used for extended periods of time, indicating the wear limit of the toothbrush. The bristles have a diameter of 0.127 mm to 0.229 mm, preferably a diameter of 0.178 mm. The length of the hair measured from the face 30 of the head 14 is about 0.350 inches. Cross-sectional area of each tuft 32 is about 2.90 mm 2 (0.0045 square inches). As shown in FIG. 6, the tuft of the mold 32 has a round cross section. Between eight and twelve mold 32 tufts are attached to the head 14.

The tufts of the third mold 34 are composed of hair made of PBT with an abrasive such as kaolin clay molecules mixed throughout the PBT. The bristles have a diameter of 0.127 mm to 0.229 mm, preferably a diameter of 0.178 mm. The length of the hair measured from the surface 30 of the head 14 is about 11.18 mm. The cross-sectional area of each tuft 34 is about 1.74 mm 2 (0.0027 square inches). Between eight and twelve mold 32 tufts are attached to the head 14. As shown in FIG. 6, the tuft of the mold 34 is rectangular and rounded.

The tufts of the fourth mold 36 are composed of hair made of PBT with an abrasive such as kaolin clay molecules mixed throughout the PBT. The bristles have a diameter of 0.127 m to 0.229 mm, preferably a diameter of 0.178 mm. The length of the hair measured from the surface 30 of the head 14 is about 11.18 mm. Cross-sectional area of each tuft 36 is about 2.58 mm 2 (0.0040 square inches). Four to six tufts of mold 36 are attached to the head 14. As shown in FIG. 6, the tuft of the mold 36 has a rectangular shape with round ends, and is wider than the tuft of the mold 34 in the lateral direction of the head.

The fifth and last mold 38 tufts are composed of bristles made of PBT with an abrasive such as kaolin clay molecules mixed throughout the PBT. The bristles have a diameter of 0.13 mm to 0.23 mm, preferably 0.152 mm (0.006 inch). The length of the hair measured from the face 30 of the head 14 is about 0.350 inches. Cross-sectional area of each tuft 38 is about 5.42mm 2 (0.0084 square inches). Four to six tufts of mold 38 are attached to the head 14. As shown in FIG. 6, the tufts of the mold 38 are rectangular with rounded ends and are wider than the tufts of the mold 36.

  As described above, regarding the cross-sectional area of each tuft, the tuft of the mold 28 has a cross section that is four times larger than any other tuft attached to the head 14. Although each tuft has been described as being made of a specific material as described above, other materials can be used. Any hair attached to the head 11 is typically PBT with or without abrasives such as kaolin clay, 6.12 nylon with or without abrasives, or nylon with or without abrasives It consists of an indicator (trademark).

  Furthermore, the hairs in and between the tufts can be varied in length, diameter, cross-sectional shape, cross-sectional area, color and are composed of different materials.

  As shown in FIGS. 2, 4, 5 and 7, all tufts of the head 14 are preferably 81 relative to the imaginary line tangent to the face 30 of the head 14 with respect to the direction D or the opposite direction of the direction D An angle of less than or equal to °, more preferably between about 69 ° and about 81 °, and most preferably 75 ° (inclined by that angle). If the surface 30 is not curved but rather flat, the line 40 is coplanar with the surface 30. The two outer rows 42 of tufts are angled away from the handle 12 with respect to the direction D (inclined in that direction). The inner tuft 44 of the tufts is tilted toward the handle 12 in the opposite direction to the direction D, except for the large tuft 28 which is tilted away from the handle 12 with respect to the direction D.

  The toothbrush 10 is manufactured by the following method as is well known to those skilled in the art. Each tuft of hair has a selected material, length and diameter, and a tuft is formed by collecting the desired amount of hair together. The tuft is then inserted into a partial opening in the mold of the injection molding machine. The ends of the tufts in or inserted into the mold recess are melted and the hairs are joined together so that a molten mass or ball is formed at the tuft ends. The mold part that supports the tuft is joined with the other part of the mold that integrally defines the recess used to form the main part 16 of the toothbrush. The molten mass of tufts is placed in the recess.

  Polypropylene is then injected into the recess to mold the portion 16 of the toothbrush 10. The polypropylene is cooled at the location where the partially completed toothbrush is moved to the second injection molding station. The cooled and solidified polypropylene adheres the molten mass of tufts to the head 14 of the toothbrush. At the second injection molding station, the partially completed brush is pressed into a second mold having a recess to mold the thumb grip portion 18, trademark 24 and finger grip portion 20. The thermoplastic elastomer is injected into the mold, and after cooling the elastomer and completing the toothbrush 10, the toothbrush 10 is removed from the mold. The toothbrush is then packaged.

It is a perspective view of a toothbrush of an embodiment of the present invention. It is a top view of the toothbrush of FIG. It is a side view of the toothbrush of FIG. FIG. 2 is a partial side view of the head and associated portion of the toothbrush tuft of FIG. 1. FIG. 2 is a partial side view of the head and associated portion of the toothbrush tuft of FIG. 1. FIG. 6 is a partial cross-sectional view of the toothbrush head taken along line 6-6 of FIG. 3; It is a perspective view of a part of head and handle of the toothbrush of FIG.

Claims (30)

  1.   A toothbrush comprising a handle, a head extending from the handle, and a plurality of tufts of hairs secured to the head, wherein one of the tufts is more distal from the handle than the position where the tuft is secured to the head At the position where no tuft is secured to the head, the tuft is secured to the head, and the one tuft is approximately tangential to or coplanar with the surface of the head to which the one tuft is secured to the head. A toothbrush that is angled to 81 ° or less, and the one tuft is inclined in a direction away from the handle relative to a direction in which the head extends from the handle.
  2.   The toothbrush of claim 1, wherein one of the tufts is angled between about 69 ° and about 81 ° with respect to an imaginary line.
  3.   The toothbrush of claim 2, wherein the one tuft is angled approximately 75 ° with respect to the phantom line.
  4.   The plurality of tufts comprise one tuft and at least two other tufts, the two other tufts being angled together with respect to the imaginary line, the two other tufts being measured from the face of the head. The toothbrushes according to claim 1, which have different lengths.
  5.   The toothbrush according to claim 4, wherein the two other tufts differ from each other in length by about 2.3 mm.
  6.   The plurality of tufts include the one tuft and the two other tufts, the two other tufts being angled together with respect to the imaginary line, and the two other tufts having different cross sections. The toothbrush according to claim 1.
  7.   The toothbrush according to claim 6, wherein the cross sections have different shapes.
  8.   The toothbrush according to claim 6, wherein the cross sections have different areas.
  9.   The toothbrush according to claim 1, wherein the cross-sectional area of the one tuft is at least four times the cross-sectional area of any other tuft fixed to the head.
  10.   The toothbrush according to claim 1, wherein another tuft is not secured to the head at a position from a handle to which the one tuft is secured to the head.
  11.   A toothbrush comprising a handle, a head extending from the handle, and a plurality of tufts of bristles secured to the head, each of the tufts having two tufts secured to the head and A toothbrush that is acute with respect to a tangent or coplanar line with respect to each other, and wherein the two tufts have mutually different characteristics selected from the group of characteristics consisting of length, cross section, color, material and combinations thereof .
  12.   The toothbrush of claim 11, wherein the characteristic is length and the difference in length between the two tufts is about 2.3 mm.
  13.   The toothbrush according to claim 11, wherein the characteristic is a cross section and a cross-sectional area is different.
  14.   The toothbrush according to claim 11, wherein the characteristic is a cross-section and the cross-sectional shape is different.
  15.   A third tuft, wherein the third tuft is at a position where there is no other tuft secured to the head at a position farther from the handle than the position where the third tuft is secured to the head; The toothbrush according to claim 11, which is fixed to the head.
  16.   The toothbrush of claim 15, wherein the third tuft is angled from about 69 ° to about 81 ° with respect to the phantom line.
  17.   The toothbrush of claim 16, wherein the third tuft is angled at approximately 75 degrees with respect to the phantom line.
  18.   The toothbrush according to claim 15, wherein the cross-sectional area of the third tuft is at least four times that of any other tuft fixed to the head.
  19.   The toothbrush according to claim 15, wherein none of the other tufts are fixed to the head at a position that is further from the handle than the position at which the third tuft is fixed to the head.
  20.   The toothbrush according to claim 15, wherein the two tresses are inclined in substantially opposite directions, one tress is inclined in a handle direction, and the other tress is inclined away from the handle.
  21.   A toothbrush comprising a handle, a head extending from the handle, and various tufts of bristles secured to the head, wherein the various tufts include at least five tufts of different cross-sections.
  22.   The toothbrush according to claim 21, wherein cross sections of the tufts are different from each other.
  23.   The toothbrush according to claim 21, wherein cross sections of the tufts are different from each other.
  24.   The toothbrush according to claim 15, wherein the third tuft is angled at about 81 ° or less with respect to the imaginary line, and is inclined away from the handle relative to the general direction of the head extending from the handle.
  25.   The toothbrush according to claim 1, wherein the one or more bristles have different characteristics from the other bristles, and the characteristics are selected from the group consisting of length, diameter, cross-sectional area, cross-sectional shape, color, material, and combinations thereof.
  26.   The toothbrush according to claim 11, wherein the one or more bristles have different characteristics from the other bristles, and the characteristics are selected from the group consisting of length, diameter, cross-sectional area, cross-sectional shape, color, material, and combinations thereof.
  27. The toothbrush of claim 1, wherein one tuft has a tuft volume measured from the head face of between about 0.246 cm 3 and 0.295 cm 3 .
  28.   The toothbrush according to claim 11, wherein the two tresses are inclined in substantially the same direction.
  29.   The toothbrush of claim 11, wherein the two tufts are angled from about 69 ° to about 81 ° with respect to the phantom line.
  30.   30. The toothbrush of claim 29, wherein the two tufts are angled at about 75 degrees relative to the phantom line.
JP2007264749A 1997-11-12 2007-10-10 Toothbrush Pending JP2008093449A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US96829397A true 1997-11-12 1997-11-12
US09/177,991 US6308367B1 (en) 1997-11-12 1998-10-23 Toothbrush

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP11522768 Division

Publications (1)

Publication Number Publication Date
JP2008093449A true JP2008093449A (en) 2008-04-24

Family

ID=26873851

Family Applications (4)

Application Number Title Priority Date Filing Date
JP52276899A Expired - Fee Related JP4069188B2 (en) 1997-11-12 1998-11-06 toothbrush
JP2007264745A Pending JP2008068109A (en) 1997-11-12 2007-10-10 Toothbrush
JP2007264732A Pending JP2008068108A (en) 1997-11-12 2007-10-10 Toothbrush
JP2007264749A Pending JP2008093449A (en) 1997-11-12 2007-10-10 Toothbrush

Family Applications Before (3)

Application Number Title Priority Date Filing Date
JP52276899A Expired - Fee Related JP4069188B2 (en) 1997-11-12 1998-11-06 toothbrush
JP2007264745A Pending JP2008068109A (en) 1997-11-12 2007-10-10 Toothbrush
JP2007264732A Pending JP2008068108A (en) 1997-11-12 2007-10-10 Toothbrush

Country Status (24)

Country Link
EP (2) EP1240847B1 (en)
JP (4) JP4069188B2 (en)
CN (1) CN1120682C (en)
AR (1) AR048240A2 (en)
AT (1) AT233060T (en)
AU (1) AU742959B2 (en)
BR (1) BR9806247A (en)
CA (1) CA2271852C (en)
CZ (1) CZ172999A3 (en)
DE (4) DE69811634T3 (en)
ES (1) ES2192797T5 (en)
GB (1) GB2333697A (en)
HU (1) HU0004254A3 (en)
ID (1) ID21723A (en)
IL (1) IL129913A (en)
NO (1) NO992417L (en)
NZ (1) NZ335854A (en)
PL (1) PL191797B1 (en)
RO (1) RO120310B1 (en)
RU (1) RU2228129C2 (en)
SK (1) SK63899A3 (en)
TR (1) TR199901208T1 (en)
TW (1) TW538701U (en)
WO (1) WO1999023910A1 (en)

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KR200469882Y1 (en) * 2011-11-30 2013-11-20 (주)아모레퍼시픽 Tooth brush
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