EP0396764A1 - Intraorale sanitäranordnung mit kontinuierlich faltbarem und verstellbarem griff - Google Patents

Intraorale sanitäranordnung mit kontinuierlich faltbarem und verstellbarem griff Download PDF

Info

Publication number
EP0396764A1
EP0396764A1 EP89910665A EP89910665A EP0396764A1 EP 0396764 A1 EP0396764 A1 EP 0396764A1 EP 89910665 A EP89910665 A EP 89910665A EP 89910665 A EP89910665 A EP 89910665A EP 0396764 A1 EP0396764 A1 EP 0396764A1
Authority
EP
European Patent Office
Prior art keywords
handle
worm
worm wheel
adjustable head
toothbrush
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.)
Withdrawn
Application number
EP89910665A
Other languages
English (en)
French (fr)
Other versions
EP0396764A4 (en
Inventor
Hayao Uehara
Yasushi Uehara
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 EP0396764A1 publication Critical patent/EP0396764A1/de
Publication of EP0396764A4 publication Critical patent/EP0396764A4/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • 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
    • A46B5/0075—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being adjustable and stable during use
    • A46B5/0083—Mechanical joint allowing adjustment in at least one plane
    • 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
    • A46B5/0075—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being adjustable and stable during use
    • 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 a mouth hygiene device, such as a toothbrush, with an adjustable head which is able to be continuously bent with respect to the handle and fixed at a given angle to the handle.
  • mouth hygiene device herein used covers a toothbrush, a toothpick, a mouth mirror, a foam-rubber massage device, and a mouth cleaning spray.
  • a toothbrush with an adjustable head capable of reaching the backside of a tooth regardless of different jaw structures and/or tooth arrangements has been known.
  • FIG. 4 shows the adjustable mechanism of a toothbrush such as shown in Japanese U.M. Patent Application Kokoku No. 58-47887.
  • the first handle section 5 has a toothed end 6, and the second handle section 7 has a stopper 8 which engages the toothed end 6.
  • the first handle section 5 has a toothed end 6, and the second handle section 7 has a stopper 8 which engages the toothed end 6.
  • the first handle section 5 is set at a desired angle by first pressing the stopper 8 in the direction of an arrow B'to release the engagement between the toothed end 6 and the stopper 8, then bending the first handle section 5 to the desired angle from the second handle section 7, and finally returning the stopper 8 for engagement with the toothed end 6.
  • the stopper 8 engages the toothed end 6 stepwise from valley to valley of the toothed end it is impossible to set the first handle section 5 at a given angle in a strict sense of the word. In addition, in order to set the first handle section at a desired angle, it is necessary to use both hands; one for holding the first handle section 5 and the other for operating the stopper 8. Moreover, because of the presence of a backlash between the stopper 8 and the toothed end 6, it is impossible to fix the first handle section without-clattering.
  • a mouth hygiene device with an adjustable head which includes a handle; an adjustable head rotatably connected to the handle; a worm wheel unit secured to an end of either the handle or the adjustable head; a worm rotatably mounted on an end of the other component for engagement with the worm wheel; and a knob secured to the worm.
  • the adjustable head may have a brush, massage foam-rubber member, toothpick, mouth mirror, mouth cleaning spray, or any other mouth hygiene component.
  • the worm wheel unit may be a worm wheel or any toothed end of the adjustable head or handle so as to mesh with the worm in the range of bending the adjustable head with respect to the handle.
  • the knob When the knob is turned with the thumb of the hand gripping the handle to turn the worm, the worm wheel is turned to bend the adjustable head which is secured to the worm wheel. Since no power is transmitted to the worm from worm wheel, the bending angle of the adjustable head is not changed by an external force applied to the adjustable head.
  • the bending angle of the adjustable head with respect to the handle may be set with one hand at a given . angle in a strict sense of the word because of the continuous meshing characteristics of the worm gear. Since the worm wheel meshes with the worm at a few points in the crest and valley, the adjustable head may be fixed at a given angle without any backlash even after a long period of service under a relatively large force applied to the adjustable head.
  • a toothbrush is taken as an example in the following description. However, it is noted that the invention is not limited to the illustrated example alone.
  • a head 10 with bristles 11 planted thereon is rotatably connected to a handle 1 with a shaft 4.
  • a worm wheel 2 is fixedly secured to an end of the head 10.
  • a worm 3 is rotatably mounted on an end of the handle 1.for engagement with the worm wheel 2.
  • a knob 31 is attached to a worm shaft 30 of the worm 3.
  • the knob 31 By turning the knob 31 it is possible to set the brush head 10 at the best angle for any tooth or any tooth arrangement of different individuals. Since it is possible to make a small worm gear with a small worm and a worm wheel, the bending portion of the toothbrush is made more compact than that of the conventional toothbrush which uses a larger gear.
  • knob-31 mounted on the backside of the handle 1 as shown by an arrow A in FIG. 2 may be mounted on the front side indicated by an arrow B.
  • the worm wheel 2 may be secured to an end of the handle 1 while the worm 3 may be mounted on an end of the head 10.
  • a worm wheel is secured to an end of either the adjustable head or the handle while a worm is pivoted to an end of the other part for engagement with the worm wheel, with a knob secured to the worm, so that the adjustable head has no backlash problem, and only one hand is necessary to continuously bend and set the adjustable head at the desired angle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Brushes (AREA)
EP19890910665 1988-09-26 1989-09-20 Intraoral sanitary device having continuously bendable and settable handle Withdrawn EP0396764A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP125303/88U 1988-09-26
JP1988125303U JPH0646347Y2 (ja) 1988-09-26 1988-09-26 柄が連続折曲固定可能な口内衛生器

Publications (2)

Publication Number Publication Date
EP0396764A1 true EP0396764A1 (de) 1990-11-14
EP0396764A4 EP0396764A4 (en) 1991-10-02

Family

ID=14906751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890910665 Withdrawn EP0396764A4 (en) 1988-09-26 1989-09-20 Intraoral sanitary device having continuously bendable and settable handle

Country Status (4)

Country Link
EP (1) EP0396764A4 (de)
JP (1) JPH0646347Y2 (de)
KR (1) KR940010030B1 (de)
WO (1) WO1990003129A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2260895A (en) * 1991-10-29 1993-05-05 Garry Martin Beasley A brushing implement having an angularly adjustable head
WO1993024033A1 (en) * 1992-06-02 1993-12-09 Kao Corporation Toothbrush
WO2006061662A3 (en) * 2004-12-11 2006-08-31 Heera Dean Improvements relating to brushes
CN115553957A (zh) * 2022-08-31 2023-01-03 深圳百合医院 一体式冲洗护理牙刷装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6478384B2 (ja) * 2014-09-25 2019-03-06 ライオン株式会社 歯ブラシ用ハンドル体及び歯ブラシ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4716666U (de) * 1971-03-25 1972-10-26
JPS5476864U (de) * 1977-11-10 1979-05-31
JPS5847887Y2 (ja) * 1981-09-21 1983-11-01 征夫 草野 ブラシ
JPS6313025U (de) * 1986-07-10 1988-01-28
JPS6347727U (de) * 1986-09-18 1988-03-31

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9003129A1 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2260895A (en) * 1991-10-29 1993-05-05 Garry Martin Beasley A brushing implement having an angularly adjustable head
GB2260895B (en) * 1991-10-29 1996-03-27 Garry Martin Beasley Improvements relating to a brushing implement
WO1993024033A1 (en) * 1992-06-02 1993-12-09 Kao Corporation Toothbrush
WO2006061662A3 (en) * 2004-12-11 2006-08-31 Heera Dean Improvements relating to brushes
CN115553957A (zh) * 2022-08-31 2023-01-03 深圳百合医院 一体式冲洗护理牙刷装置

Also Published As

Publication number Publication date
WO1990003129A1 (fr) 1990-04-05
KR900701196A (ko) 1990-12-01
JPH0646347Y2 (ja) 1994-11-30
KR940010030B1 (ko) 1994-10-21
JPH0245023U (de) 1990-03-28
EP0396764A4 (en) 1991-10-02

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