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EP0199849A1 - Brosse à dents à tête amovible - Google Patents

Brosse à dents à tête amovible Download PDF

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Publication number
EP0199849A1
EP0199849A1 EP85115213A EP85115213A EP0199849A1 EP 0199849 A1 EP0199849 A1 EP 0199849A1 EP 85115213 A EP85115213 A EP 85115213A EP 85115213 A EP85115213 A EP 85115213A EP 0199849 A1 EP0199849 A1 EP 0199849A1
Authority
EP
European Patent Office
Prior art keywords
projection
latching
plug
handle
recess
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
EP85115213A
Other languages
German (de)
English (en)
Other versions
EP0199849B1 (fr
Inventor
Fritz Rueb
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
Priority to AT85115213T priority Critical patent/ATE48075T1/de
Publication of EP0199849A1 publication Critical patent/EP0199849A1/fr
Application granted granted Critical
Publication of EP0199849B1 publication Critical patent/EP0199849B1/fr
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B7/00—Bristle carriers arranged in the brush body
    • A46B7/04—Bristle carriers arranged in the brush body interchangeably removable bristle carriers
    • A46B7/042—Clip or snap connection for bristle carriers
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B7/00—Bristle carriers arranged in the brush body
    • A46B7/04—Bristle carriers arranged in the brush body interchangeably removable bristle carriers
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B7/00—Bristle carriers arranged in the brush body
    • A46B7/04—Bristle carriers arranged in the brush body interchangeably removable bristle carriers
    • A46B7/044—Sliding connections for bristle carriers
    • 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 invention relates to a toothbrush with a handle and an interchangeably attached bristle part which, below the bristles, has a cavity which is closed on all sides in cross section and has an insertion opening on the end face for inserting a plug part projecting on the end face of the handle, and also a latching device for latching the plug part with the bristle part, which latching device consists of a latching recess and a projection which fits into it.
  • a toothbrush of the type mentioned at the outset is known from European laid-open specification 0 083 787.
  • a metal plug-in part is partially injected onto a plastic handle in order to be able to transmit the forces occurring when using the toothbrush with sufficient certainty.
  • the bristle part is fixed to the plug-in part either by frictional or clamping engagement or by means of the latching device mentioned at the outset, which is realized in that the plug-in part has the latching recess, while a protrusion entering this recess when plugging together is provided in the interior of the cavity.
  • This has the sensitive disadvantage that when the plug-in part is inserted, the cavity, which is closed on all sides in cross section, would have to be expanded in order to carry out the latching.
  • a dovetail-shaped design of a coupling between the handle and exchangeable bristle part in a toothbrush is known from DE-GM 84 28 969 or GB-A-20 44 089, the position of use being additionally to be fixed by a point detent.
  • the entire bristle part is relatively weak due to its U-shaped cross section, so that slipping off the dovetail holder transversely to its extension cannot be ruled out, at least when the toothbrush is used vigorously. In addition, even a point-like catch cannot transmit large forces.
  • the latching recess is arranged at the insertion opening of the cavity of the bristle part and is open at the edge and has at least one undercut at the side opposite to the insertion direction and that the projection which fits the undercut positively on the functional position in the region of the latching recess located area of the plug part of the handle is arranged.
  • the locking recess can namely be transverse to the insertion direction of the plug-in part and the projection from the inner cavity through the entire area of the wall of the cavity through to the outside continuously, resulting in the above-mentioned U-cross section in the area of the locking recess; Furthermore, it is expedient in the aforementioned context if the projection on the plug-in part widens from its front end in the plug-in direction and at least one lateral wedge surface extending at an acute angle to the plug-in direction up to a greatest width and from there steeper or at an obtuse angle has returned locking surface that fits behind the undercut of the locking recess.
  • the invention allows a relatively easy latching, in which the projection is pushed through the narrowest point of the latching recess, but due to the steep undercut, it makes the latching so difficult that it does not happen by itself, but when the bristle part is occasionally replaced is still possible.
  • the angles of the plug-in part and the latching surface and the sizes of these surfaces can be adjusted and designed as necessary so that when using a toothbrush the release of the latching connection is excluded with certainty, while still deliberately removing the bristle part from the plug-in part is possible.
  • edge recess is not only open at the edge of the insertion opening of the cavity, but to a certain extent as an opening in the wall of the cavity can be understood. This allows their edges with the undercut to yield slightly when the plug-in part snaps in and out, without the cavity itself having to be widened, so that on the one hand the corresponding surfaces engage in a form-fitting manner, but on the other hand can be guided past one another and the desired locking forces are generated without the bristle part and in particular its cavity is damaged by being placed on the handle.
  • the locking recess is provided with two undercuts facing away from one another and the projection of the plug-in part has two wedge surfaces that are at an acute angle to one another and two locking surfaces that are at an obtuse angle to one another and that adjoin the wedge surfaces in the plug-in direction and that conclude -sig fit into the two undercuts.
  • the wedge surfaces of the projection and the corresponding counter surfaces of the locking recess as well as the two undercuts and the matching locking surfaces can be arranged symmetrically to a longitudinal center plane oriented in the insertion direction. This results in a symmetrical application of force and a symmetrical distribution of force when inserting or removing and above all when using the toothbrush.
  • the front end of the projection in the insertion direction can be rounded, which facilitates the insertion into the locking recess and also the manufacture.
  • the latching recess can preferably be arranged on the side of the bristle part from which the bristles protrude. Since bending forces that occur during use on the coupling between the bristle part and the handle occur counter to the direction of the bristles in which they protrude from the bristle part, there is good support for the plug-in part on the side of the cavity of the bristle part opposite the latching recess, and it is particularly useful It is advantageous if the cavity and the insertion opening on this side extend continuously to the end of the plug-in part and the end face of the handle. The moment occurring with such loads is then recorded over the greatest possible length of the plug-in part also below the locking area. In addition, joints or cuts between the handle and the bristle part are avoided.
  • the latching projection of the handle can be flush in its position of use on its surface running transversely to the latching surfaces with the surface of the landing of the bristle part which it traverses. This creates a smooth connection, which prevents the risk of injury.
  • the plug-in part of the handle can be made in one piece with the latching projection and preferably also with the handle, in particular from plastic, preferably by injection molding. Compared to manufacturing the handle and the plug-in part and / or the projection from different materials, this results in inexpensive manufacture and good power transmission.
  • the projection and of the bristle portion can be optically different, preferably have different colors. This improves the visual control as to whether the latching connection has really been made.
  • the connection of these two parts can be made with sufficient security and strength, so that a correspondingly high quality reusable Handle is profitable, which can be connected to any high quality bristle parts. Furthermore, it is possible for the user to alternately use harder and softer bristles on corresponding different bristle parts.
  • the bristle part 3 has a cross section which is closed on all sides and has an insertion opening on the end face 5 6 provided cavity 7, in which a plug 8 protruding from the handle 2 according to FIGS. 3 and 5 on the end face for connecting the two parts 2 and 3 according to FIG. 1 can be inserted.
  • FIG. 2 it can be seen in connection with FIG. 4 that the hollow space 7 at the insertion opening 6 has an open recess 10 which has undercuts 9 on the side opposite the insertion direction.
  • the handle 2 on the region of the plug-in part 8 located in the functional position according to FIG. 1 in the region of this latching recess 10 has a projection 11 that fits into the undercuts 9 in a form-fitting manner.
  • the locking recess 10 transversely to the direction of insertion of the plug part 8 and the projection 11 from the inner cavity 7 through the entire wall area of the cavity to the outside and is open.
  • the latching recess 10 thus practically represents an indentation on the corresponding wall 12 delimiting the cavity 7.
  • the projection 11 widens from its front end 13 in the direction of insertion and has lateral wedge surfaces 14 which extend at an acute angle to the direction of insertion and which extend to a maximum width 15. Furthermore, the projection 11 has locking surfaces 16, each steeper from the greatest width 15, which fit behind the undercuts 9 of the locking recess 10 in the insertion direction, as shown in FIG. 1. The remaining edges 17 of the recess 10 correspond to the contour of the projection 11 and in particular the course of the wedge surfaces 14. This results in a positive connection between the projection 11 and the recess 10, which runs practically along the entire contour of these two parts which can be locked together.
  • the front end 13 of the projection 11 in the insertion direction is rounded, as is the corresponding part 18 of the latching recess 10 which projects furthest into the bristle part 3 in the insertion direction.
  • the locking recess 10 is arranged on the side of the bristle part 3, from which the bristles 4 protrude. So when brushing 2 occurring between the bristle bending portion 3 and the handle - forces and a resulting torque are well received by the latching recess 10 of the opposite wall 19 of the cavity. 7 Since the wall 19 is continuous, it can extend as far as the handle-side end 20 of the plug-in part 8 and the end face 21 of the handle 2, so that joints which are unfavorable for use are avoided at this point.
  • the locking projection 11 is flush on its surface 22 extending transversely to the locking surfaces 16 with the surface 23 of the wall 12 of the cavity 7 through which it passes, so that the surface and the outside of the toothbrush 1 are smooth in the coupling area as well.
  • the bristle part 3 can be released from the position shown in FIG. 1 by a pulling force to be applied by the user, although the relatively obtuse-angled locking surfaces 16 produce a connection on the undercuts 9 that is sufficiently firm for use, because with a correspondingly large release force due to the slight inclination the largest narrow point of the recess 10 can be spread apart a little. Conversely, this constriction and the undercuts 9 snap and feel audibly at the latching surfaces 16 of the projection 11, and the narrowest point of the latching opening 10 reaches slightly over the greatest width 15 of the projection, so that an apparently firm plug connection, which is nevertheless insufficient, as is possible with a plug-in part without a locking projection and associated locking recess.
  • a toothbrush 1 results, in which the bristle part 3 is firmly attached to the in use Handle 2 can sit, but is still interchangeable, so that unwanted loosening of the bristle part 3 is excluded from the handle 2 during use.

Landscapes

  • Brushes (AREA)
EP85115213A 1985-03-26 1985-11-30 Brosse à dents à tête amovible Expired EP0199849B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85115213T ATE48075T1 (de) 1985-03-26 1985-11-30 Zahnbuerste mit auswechselbarem borstenteil.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853510909 DE3510909A1 (de) 1985-03-26 1985-03-26 Zahnbuerste mit auswechselbarem borstenteil
DE3510909 1985-03-26

Publications (2)

Publication Number Publication Date
EP0199849A1 true EP0199849A1 (fr) 1986-11-05
EP0199849B1 EP0199849B1 (fr) 1989-11-23

Family

ID=6266361

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115213A Expired EP0199849B1 (fr) 1985-03-26 1985-11-30 Brosse à dents à tête amovible

Country Status (6)

Country Link
US (1) US4683604A (fr)
EP (1) EP0199849B1 (fr)
JP (1) JPS61226003A (fr)
AT (1) ATE48075T1 (fr)
CA (1) CA1266357A (fr)
DE (2) DE3510909A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0326363A1 (fr) * 1988-01-25 1989-08-02 Daniel P. Lagieski Système d'hygiène buccale
WO1998001055A1 (fr) * 1996-07-08 1998-01-15 Trisa Bürstenfabrik Ag Triengen Brosse a dents et tete de brosse associee

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754516A (en) * 1986-11-28 1988-07-05 Pinceaux Universels Clic Ltd. Brush having removable handle
DE3724640A1 (de) * 1987-07-25 1989-02-02 Nitzsche International Gmbh Zahnbuerste
US5253948A (en) * 1988-07-22 1993-10-19 Butler Peter R Connector for releasably connecting and locking a first member to a second member
DE3921371C1 (en) * 1989-06-29 1990-08-30 Josef 7888 Rheinfelden De Scheller Tooth brush with resiliently deflectable brush head - has swivel joint above tensile spring fastening point, as bolt through head facing end of handle
DE3936149C1 (en) * 1989-10-31 1991-04-25 Blendax Gmbh, 6500 Mainz, De Disposable tooth-brush with removable head - has handle as tapering paper tube for head insertion
DE4115943C2 (de) * 1991-05-16 1998-10-01 Noerthemann Karl Heinz Zahnfleischmassagebürste
USD336159S (en) 1990-06-18 1993-06-08 Moore Mark E Toothbrush having a pivoted removable head
USD341719S (en) 1991-09-23 1993-11-30 Robert Franco Toothbrush
DE4234764C2 (de) * 1992-10-15 1994-08-18 Jovica Vukosavljevic Einrastverbindung für eine teilbare Bürste, insbesondere Zahnbürste
DE9306429U1 (de) * 1993-04-29 1993-08-26 Warmer, Andreas, 22179 Hamburg Spül-, Zahn- oder andere Bürste
DE9307887U1 (de) * 1993-05-25 1993-08-05 AIT Metallbearbeitungsgesellschaft mbH, 72275 Alpirsbach Zahnbürste
US5487203A (en) * 1994-01-11 1996-01-30 Brach, Jr.; Philip L. Squeegee having an advertising display area
USD376696S (en) 1994-10-03 1996-12-24 Vogel Jr William T Tooth brush with removable head
US5511276A (en) * 1995-05-22 1996-04-30 Lee; Kuo-Ming Toothbrush with replaceable bristle carrier
US5778475A (en) * 1996-08-13 1998-07-14 Garcia; Peter G. Tongue debridement aid
US5875510A (en) * 1996-09-27 1999-03-02 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Replaceable head toothbrush
US5887600A (en) * 1997-12-23 1999-03-30 Wilk; Sue Hair curling brush and method of using same
CH692376A5 (de) * 1998-01-16 2002-05-31 Trisa Buerstenfabrik Ag Flexibler Bürstenkopf für eine Zahnbürste.
DE19816098A1 (de) * 1998-04-09 1999-10-14 Coronet Werke Gmbh Reinigungsbürste, insbesondere Zahnbürste
USD420804S (en) * 1998-05-07 2000-02-22 Athena Nordic Ab Toothbrush head and handle set
US6546585B1 (en) 1999-07-06 2003-04-15 The Procter & Gamble Company Toothbrush with detachable/replaceable head
US6345406B1 (en) * 1999-12-08 2002-02-12 William A. Dodd Oral healthcare system having interchangeable, disposable heads
DE29919122U1 (de) 1999-12-16 2000-06-21 Teske, Pierre Hermann Ferdinand, 42283 Wuppertal Zahnfleischmassagenkissenbürste
US20020148058A1 (en) * 2001-04-12 2002-10-17 Greenwood Mark H. Detachably interconnected handle and paint brush
EP1260152A1 (fr) 2001-05-23 2002-11-27 Unilever Plc Brosse à dents
DE10209320A1 (de) * 2002-03-02 2003-09-25 Braun Gmbh Zahnbürstenkopf einer elektrischen Zahnbürste
MY166743A (en) * 2003-06-10 2018-07-20 Joo Koi Lai Toothbrush
US7431530B1 (en) 2004-04-13 2008-10-07 Ned Powers Toothbrush methods and apparatus
DE102004057737B4 (de) * 2004-08-18 2007-05-31 Seçme, Münir Zahnbürste
DE102006060133A1 (de) * 2006-12-18 2008-06-19 Braun Gmbh Zahnbürste sowie Aufsatzteil hierfür
DE102007029973A1 (de) 2007-06-28 2009-01-08 Braun Gmbh Zahnbürste
US8448287B2 (en) 2010-10-22 2013-05-28 Mcneil-Ppc, Inc. Replaceable toothbrush head
US9301821B2 (en) 2011-07-12 2016-04-05 Colgate-Palmolive Company Refill head for powered oral care implement that produces vibratory and oscillatory motion
JP2013135750A (ja) 2011-12-28 2013-07-11 Omron Healthcare Co Ltd 電動歯ブラシおよび替えブラシ
US11089862B2 (en) * 2013-11-13 2021-08-17 The Gillette Company Llc Oral-care implement and method for manufacturing the same
ES2972150T3 (es) * 2013-11-13 2024-06-11 Gillette Co Llc Utensilio para cuidado bucal y método para fabricar el mismo
CN106419048A (zh) * 2016-02-04 2017-02-22 上海慎兴制刷有限公司 牙刷刷头替换结构
CN107095439B (zh) * 2017-05-15 2018-08-03 杨益滔 一种多用途牙刷
KR102182124B1 (ko) * 2019-07-29 2020-11-23 교촌 에프 앤 비(주) 무게중심 조절이 가능한 소스용 붓
US20220225754A1 (en) * 2021-01-21 2022-07-21 Orthonu, Llc Toothbrush
EP4179918A1 (fr) * 2021-11-15 2023-05-17 Julien Luc Bernard Tete de brosse a dents amovible et brosse a dents comportant une telle tete

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB202424A (en) * 1922-05-22 1923-08-22 Alexander Saxe Improvements in tooth brushes
US1887913A (en) * 1932-01-09 1932-11-15 Harry D Bell Toothbrush
US2219753A (en) * 1938-05-21 1940-10-29 Walter C Mayland Toothbrush
US3050072A (en) * 1959-08-28 1962-08-21 Diener Jack Tooth cleaning device
US3182345A (en) * 1963-05-17 1965-05-11 Westinghouse Electric Corp Means for attaching appliance handles to a power drive shank
DE1195267B (de) * 1962-12-04 1965-06-24 Ronson Corp Elektrisch angetriebene Zahnbuerste
DE1216239B (de) * 1961-08-11 1966-05-12 Celluloid Sa Buerste
US3369265A (en) * 1966-07-07 1968-02-20 Vistron Corp Universal toothbrush head
GB2044089A (en) * 1979-03-02 1980-10-15 Kent & Sons Ltd G B Disposable head toothbrush
DE3011534A1 (de) * 1980-03-21 1981-10-01 Kojić, geb. Stanojlović, Ljubinka, 1000 Berlin Rotierende elektrische zahnbuerste
EP0083787A2 (fr) * 1982-01-13 1983-07-20 Ludwig Lang Brosse à dents munie d'une tête de brosse interchangeable
EP0174740A1 (fr) * 1984-08-14 1986-03-19 Hiroshi Hukuba Brosse à dents électrique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3088148A (en) * 1961-04-17 1963-05-07 Aesup Ets Toothbrush attachment
CH644008A5 (de) * 1980-03-03 1984-07-13 Walther Buerstenfabrik Ag Elektrisches handgeraet, insbesondere elektrische zahnbuerste.
DE3200681A1 (de) * 1982-01-13 1983-07-28 Ludwig Dipl.-Ing. Lang Geteilte zahnbuerste mit wechselbuerstenkoepfen
DE8428969U1 (de) * 1984-10-02 1984-11-15 Abele, Christoph, 8000 München Auswechselbarer Borstenteil bei der Zahnbürste

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB202424A (en) * 1922-05-22 1923-08-22 Alexander Saxe Improvements in tooth brushes
US1887913A (en) * 1932-01-09 1932-11-15 Harry D Bell Toothbrush
US2219753A (en) * 1938-05-21 1940-10-29 Walter C Mayland Toothbrush
US3050072A (en) * 1959-08-28 1962-08-21 Diener Jack Tooth cleaning device
DE1216239B (de) * 1961-08-11 1966-05-12 Celluloid Sa Buerste
DE1195267B (de) * 1962-12-04 1965-06-24 Ronson Corp Elektrisch angetriebene Zahnbuerste
US3182345A (en) * 1963-05-17 1965-05-11 Westinghouse Electric Corp Means for attaching appliance handles to a power drive shank
US3369265A (en) * 1966-07-07 1968-02-20 Vistron Corp Universal toothbrush head
GB2044089A (en) * 1979-03-02 1980-10-15 Kent & Sons Ltd G B Disposable head toothbrush
DE3011534A1 (de) * 1980-03-21 1981-10-01 Kojić, geb. Stanojlović, Ljubinka, 1000 Berlin Rotierende elektrische zahnbuerste
EP0083787A2 (fr) * 1982-01-13 1983-07-20 Ludwig Lang Brosse à dents munie d'une tête de brosse interchangeable
EP0174740A1 (fr) * 1984-08-14 1986-03-19 Hiroshi Hukuba Brosse à dents électrique

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0326363A1 (fr) * 1988-01-25 1989-08-02 Daniel P. Lagieski Système d'hygiène buccale
WO1998001055A1 (fr) * 1996-07-08 1998-01-15 Trisa Bürstenfabrik Ag Triengen Brosse a dents et tete de brosse associee
US6237183B1 (en) 1996-07-08 2001-05-29 Franz Fischer Toothbrush and brush head for said toothbrush

Also Published As

Publication number Publication date
US4683604A (en) 1987-08-04
EP0199849B1 (fr) 1989-11-23
CA1266357A (fr) 1990-03-06
JPS61226003A (ja) 1986-10-07
DE3510909A1 (de) 1986-10-09
DE3574334D1 (en) 1989-12-28
DE3510909C2 (fr) 1987-07-02
ATE48075T1 (de) 1989-12-15

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