US20160100680A1 - Toothbrush - Google Patents

Toothbrush Download PDF

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Publication number
US20160100680A1
US20160100680A1 US14/861,225 US201514861225A US2016100680A1 US 20160100680 A1 US20160100680 A1 US 20160100680A1 US 201514861225 A US201514861225 A US 201514861225A US 2016100680 A1 US2016100680 A1 US 2016100680A1
Authority
US
United States
Prior art keywords
neck
toothbrush
hole
elastic member
elastic
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.)
Abandoned
Application number
US14/861,225
Other languages
English (en)
Inventor
Hee Don LEE
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of US20160100680A1 publication Critical patent/US20160100680A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • A46B5/0062—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being flexible or resilient during use
    • A46B5/0066—Flexible resilience by elastic deformation of the material
    • 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 generally relates to a toothbrush. More particularly, the present invention relates to a toothbrush, which provides an elastic force to a toothbrush neck so that a head may be flexibly moved without the toothbrush neck being broken or deformed by a tooth brushing force during toothbrushing.
  • the present invention is directed to a toothbrush.
  • a conventional toothbrush is generally formed of plastic, so that it is inflexible.
  • the toothbrush is manufactured to have an integrated structure.
  • the conventional toothbrush is problematic in that the neck is deformed or broken by a tooth brushing force if the head is not moved flexibly during toothbrushing.
  • the toothbrush has no elastic force and thereby the head is not moved flexibly, the teeth and the gums are undesirably strained during toothbrushing.
  • Korean Patent No. 10-1175140 has been proposed. This discloses a toothbrush that is configured to have an elastic force and thereby prevent a toothbrush neck from being broken. According to the cited document, a through hole is formed through both side surfaces of the toothbrush neck, and the through hole is filled with an elastic member, thus giving an elastic force to the toothbrush. However, the effect of the toothbrush is inadequate.
  • an object of the present invention is to provide a toothbrush, in which a through hole is formed through a toothbrush neck and a bending prevention portion and an elastic groove are formed on opposite sides of an outer circumference of a through hole, so that the bending prevention portion and the elastic groove prevent the neck from being deformed or broken even if the neck is bent beyond a predetermined angle during toothbrushing, and in which a head is flexibly moved, thus allowing the teeth to be easily brushed.
  • Another object of the present invention is to provide a toothbrush, in which both a front surface and a rear surface are filled with an elastic member via a through hole formed in a toothbrush neck, thus allowing the toothbrush neck to be easily restored to its original state even if the toothbrush neck is bent forwards or rearwards.
  • a further object of the present invention is to provide a toothbrush, in which an elastic groove is filled with silicone rubber that is a member softer than an elastic member, thus helping the elastic member to perform an elastic action, preventing the proliferation of mold and the contamination of the toothbrush due to a space defined in the elastic groove, and thereby making it easy to sanitarily manage the toothbrush.
  • a toothbrush including a neck formed between a head and a handle and curved to protrude towards a front surface of the toothbrush; a through hole formed through both a front surface and a rear surface of the neck; a bending prevention portion formed in the neck, located at each of opposite sides on an outer circumference of the through hole to be curved outwards along the outer circumference of the through hole, and spaced apart from both sides of the neck by a predetermined interval to define a predetermined space between both the sides of the neck, with an elastic member filled in the space; the elastic member filled in the through hole and coupled to be superposed on a rear surface of the handle; and an elastic groove formed in a rear surface of an upper portion of the elastic member to be opposite to the through hole.
  • the bending prevention portion may be folded while protruding outwards, when the head is bent towards the rear surface of the neck.
  • the elastic member may be coupled to be superposed on the front surface of the neck via the through hole while being filled in the through hole.
  • the elastic groove may be filled with a member softer than the elastic member.
  • the soft member may be silicone rubber.
  • the toothbrush is advantageous in that a through hole is formed through a toothbrush neck and a bending prevention portion and an elastic groove are formed on opposite sides of an outer circumference of a through hole, so that the bending prevention portion and the elastic groove prevent the neck from being deformed or broken even if the neck is bent beyond a predetermined angle during toothbrushing, and a head is flexibly moved, thus allowing the teeth to be easily brushed.
  • the toothbrush is advantageous in that both a front surface and a rear surface are filled with an elastic member via a through hole formed in a toothbrush neck, thus allowing the toothbrush neck to be easily restored to its original state even if the toothbrush neck is bent forwards or rearwards.
  • the toothbrush is advantageous in that an elastic groove is filled with silicone rubber that is a member softer than an elastic member, thus helping the elastic member to perform an elastic action, preventing the proliferation of mold and the contamination of the toothbrush due to a space defined in the elastic groove, and thereby making it easy to sanitarily manage the toothbrush.
  • FIG. 1 is a perspective view showing a toothbrush according to a preferred embodiment of the present invention
  • FIG. 2 is a front view showing a state where an elastic member is coupled to the toothbrush according to the preferred embodiment of the present invention
  • FIG. 3 is a rear view showing a state before the elastic member is coupled to the toothbrush according to the preferred embodiment of the present invention
  • FIG. 4 is a side perspective view showing the state before the elastic member is coupled to the toothbrush according to the preferred embodiment of the present invention
  • FIG. 5 is a side projection perspective view showing a state where the elastic member is coupled to the toothbrush according to the preferred embodiment of the present invention
  • FIG. 6 is a side perspective view showing a state where the elastic member is coupled to the toothbrush according to the preferred embodiment of the present invention.
  • FIG. 7 is a view showing an elastic groove formed in the elastic member according to the preferred embodiment of the present invention.
  • FIG. 8 is a view showing silicone rubber filled in the elastic groove of the elastic member according to the preferred embodiment of the present invention.
  • a toothbrush according to the present invention includes a neck 130 that is formed between a head 110 and a handle 150 , and is curved to protrude towards a front surface of the toothbrush 100 .
  • a through hole 131 is formed through both a front surface and a rear surface of the neck 130 .
  • a bending prevention portion 140 is formed at each of opposite sides on an outer circumference of the through hole 131 in a round shape.
  • An elastic member 160 is filled in the through hole 131 , and is coupled to be superposed on a rear surface of the handle 150 .
  • An elastic groove is formed in a rear surface of an upper portion of the elastic member 160 to be opposite to the through hole 131 .
  • the toothbrush 100 includes the neck 130 , the through hole 131 , the bending prevention portion 140 , the elastic member 160 , and the elastic groove 170 .
  • FIG. 1 is a perspective view showing a toothbrush according to a preferred embodiment of the present invention.
  • the toothbrush 100 includes a neck 130 , a through hole 131 , a bending prevention portion 140 , an elastic member 160 , and an elastic groove 170 .
  • the neck 130 is formed between the head 110 and the handle 150 , and is curved to protrude towards the front surface of the toothbrush 100 .
  • Such a structure solves a problem of the conventional straight toothbrush wherein its head 110 has poor flexibility and thus the neck 130 is likely to be deformed or broken, in addition to increasing the flexibility of the head 110 during toothbrushing.
  • the through hole 131 penetrates through the front and rear surfaces of the neck 130 .
  • the through hole 131 penetrates through a curved portion of the neck 130 .
  • the bending prevention portion 140 is formed in the neck 130 , is located at each of opposite sides on the outer circumference of the through hole 131 to have a round shape along the outer circumference of the through hole 131 , and is spaced apart from both sides of the neck 130 by a predetermined interval to define a predetermined space 132 between both the sides of the neck 130 , with an elastic member 160 filled in the space 132 .
  • the elastic member 160 is coupled to be superposed on the rear surface of the handle 150 while being filled in the through hole 131 .
  • the elastic member 160 is also coupled to be superposed on the front surface of the neck 130 while being filled in the through hole 131 .
  • the elastic member 160 is coupled to be superposed on both the front and rear surfaces of the neck 130 while being filled in the through hole 131 of the neck 130 , thus further increasing the elastic force of the neck 130 .
  • the elastic member 160 is a material having an elastic force, for example, rubber.
  • the elastic groove is formed in the rear surface of an upper portion of the elastic member 160 to be opposite to the through hole 131 .
  • FIG. 2 is a front view showing a state where the elastic member is coupled to the toothbrush according to the preferred embodiment of the present invention
  • FIG. 3 is a rear view showing a state before the elastic member is coupled to the toothbrush according to the preferred embodiment of the present invention
  • FIG. 4 is a side perspective view showing the state before the elastic member is coupled to the toothbrush according to the preferred embodiment of the present invention.
  • the through hole 131 and the bending prevention portion 140 are formed in the neck 130 .
  • the through hole 131 is formed through both the front and rear surfaces of the neck 130 .
  • the bending prevention portion 140 is formed in the neck 130 and is located at each of the opposite sides on the outer circumference of the through hole 131 to have the round shape along the outer circumference of the through hole 131 .
  • the bending prevention portions 140 are not formed on the outer circumference of the through hole 131 connected to the head 110 and the handle 150 but are formed on both sides of the neck 130 to protrude therefrom.
  • Each bending prevention portion 140 is formed on a portion of the outer circumference of the through hole 131 while being formed in the neck 130 , and is the thinnest portion of the toothbrush 100 that is made by injection molding.
  • the bending prevention portion 140 When the head 110 is bent towards the rear surface of the neck 130 during toothbrushing, the bending prevention portion 140 is folded to protrude outwards. Meanwhile, when the head 110 returns to its original position, the bending prevention portion 140 is restored to its original state, namely, the round shape.
  • the bending prevention portion 140 serves to hold the neck 130 so that it is not bent beyond a predetermined range.
  • the bending prevention portion 140 serves to hold the neck 130 so that it is not bent beyond a predetermined angle. Further, when the head 110 is bent towards the rear surface of the toothbrush by the toothbrushing, the bending prevention portion 140 is elastically folded to protrude outwards and then restored to its original state, thus increasing the flexibility of the head 110 and preventing the neck 130 from being deformed or broken.
  • the bending prevention portions 140 are spaced apart from both the sides of the neck 130 by a predetermined interval to define the predetermined space 132 between the bending prevention portions 140 and both the sides of the neck 130 , with the elastic member 160 filled in the space 132 . If the head 110 is bent towards the rear surface of the neck 130 during toothbrushing, the bending prevention portion 140 is folded to protrude outwards. In this regard, the above-mentioned configuration provides elasticity to the operation of each bending prevention portion 140 that is folded and then is restored to its original state depending on the movement of the neck 130 while surrounding the outside of the bending prevention portion 140 .
  • the elastic member 160 is coupled to be superposed on the rear surface of the handle 150 while being filled in the through hole 131 .
  • the elastic member 160 is coupled to be superposed on the front surface of the neck 130 while being filled in the through hole. This holds the head so that it is not bent beyond a predetermined angle, and allows the head to be easily restored to its original state using the elastic force of the elastic member when the head is bent towards the rear surface of the toothbrush during toothbrushing, thus preventing the neck from being deformed or broken.
  • the wrist may be slightly strained.
  • the toothbrush of the present invention prevents the wrist from being strained and provides a stable grip sensation without slip even if a portion of the toothbrush contacting with the thumb during toothbrushing is in contact with water.
  • the elastic member 160 that is pushed out from both sides of the through hole 131 when the elastic member 160 is filled in the through hole 131 can be coupled to both the front and rear surfaces of the neck 130 at the same time, thus facilitating injection molding.
  • the elastic groove 170 is formed in the rear surface of the upper portion of the elastic member 160 to be opposite to the through hole 131 , thus maximizing the elastic operation of the elastic member 160 .
  • the space defined in the elastic groove 170 is filled with the soft member corresponding thereto, thus helping the elastic groove 170 to perform the elastic action, preventing the proliferation of mold and contamination due to the contact of the space defined in the elastic groove 170 with the humidity of a bathroom, and thereby allowing the toothbrush to be sanitarily managed.
  • the soft member preferably uses the silicone rubber 171 that is softer than the elastic member 160 .

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  • Brushes (AREA)
US14/861,225 2014-10-10 2015-09-22 Toothbrush Abandoned US20160100680A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2014-0136870 2014-10-10
KR1020140136870A KR101486003B1 (ko) 2014-10-10 2014-10-10 칫솔대

Publications (1)

Publication Number Publication Date
US20160100680A1 true US20160100680A1 (en) 2016-04-14

Family

ID=52592506

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/861,225 Abandoned US20160100680A1 (en) 2014-10-10 2015-09-22 Toothbrush

Country Status (4)

Country Link
US (1) US20160100680A1 (zh)
JP (1) JP5892450B1 (zh)
KR (1) KR101486003B1 (zh)
CN (1) CN104921446B (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113317612A (zh) * 2021-06-18 2021-08-31 好维股份有限公司 一种儿童牙刷
CN114869042B (zh) * 2022-05-10 2024-03-01 好维股份有限公司 一种护龈牙刷

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054154A (en) * 1989-07-15 1991-10-08 M & C Schiffer Gmbh Toothbrush with flexible head
US5339482A (en) * 1992-07-21 1994-08-23 Johnson & Johnson Consumer Products, Inc. Toothbrush having non-slip surface
US6668416B1 (en) * 1999-05-24 2003-12-30 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg Toothbrush
US7137166B1 (en) * 1999-11-17 2006-11-21 Smithkline Beecham Gmbh & Co Kg Toothbrush

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2282959B (en) * 1993-10-19 1998-06-17 Addis Ltd Improvements in or relating to toothbrushes
US6996870B2 (en) * 1995-12-29 2006-02-14 Colgate-Palmolive Company Contouring toothbrush head
JP3040913U (ja) * 1997-02-25 1997-09-05 順元成興業股▲ふん▼有限公司 歯ブラシ
GB9929402D0 (en) * 1999-12-14 2000-02-09 Smithkline Beecham Gmbh & Co Toothbrush
JP4013602B2 (ja) * 2002-03-19 2007-11-28 サンスター株式会社 歯ブラシ
ES2390199T3 (es) * 2002-09-20 2012-11-07 Colgate-Palmolive Company Cepillo de dientes con zona de agarre
CN201182321Y (zh) * 2008-04-29 2009-01-21 张和芬 牙间刷
EP2229841B1 (de) * 2009-03-18 2015-03-11 Braun GmbH Zahnbürste
GB201104024D0 (en) * 2011-03-09 2011-04-20 Glaxosmithkline Consumer Healt Novel device
KR101331607B1 (ko) * 2013-07-29 2013-11-22 이희돈 칫솔대

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054154A (en) * 1989-07-15 1991-10-08 M & C Schiffer Gmbh Toothbrush with flexible head
US5339482A (en) * 1992-07-21 1994-08-23 Johnson & Johnson Consumer Products, Inc. Toothbrush having non-slip surface
US6668416B1 (en) * 1999-05-24 2003-12-30 Glaxosmithkline Consumer Healthcare Gmbh & Co. Kg Toothbrush
US7137166B1 (en) * 1999-11-17 2006-11-21 Smithkline Beecham Gmbh & Co Kg Toothbrush

Also Published As

Publication number Publication date
JP2016077881A (ja) 2016-05-16
CN104921446B (zh) 2016-08-24
KR101486003B1 (ko) 2015-01-26
CN104921446A (zh) 2015-09-23
JP5892450B1 (ja) 2016-03-23

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STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION