EP0639340B1 - Device for selective separation of toothbrush bristles - Google Patents

Device for selective separation of toothbrush bristles Download PDF

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Publication number
EP0639340B1
EP0639340B1 EP94305348A EP94305348A EP0639340B1 EP 0639340 B1 EP0639340 B1 EP 0639340B1 EP 94305348 A EP94305348 A EP 94305348A EP 94305348 A EP94305348 A EP 94305348A EP 0639340 B1 EP0639340 B1 EP 0639340B1
Authority
EP
European Patent Office
Prior art keywords
stems
bristles
base
separation device
support
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.)
Expired - Lifetime
Application number
EP94305348A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0639340A1 (en
Inventor
Alexandre Petrocini Falleiros
Bernard Reinesch
Paulo Rogerio Braga Lima
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.)
Johnson and Johnson Consumer Inc
Original Assignee
Johnson and Johnson Consumer Products Inc
Johnson and Johnson Consumer Companies LLC
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 Johnson and Johnson Consumer Products Inc, Johnson and Johnson Consumer Companies LLC filed Critical Johnson and Johnson Consumer Products Inc
Publication of EP0639340A1 publication Critical patent/EP0639340A1/en
Application granted granted Critical
Publication of EP0639340B1 publication Critical patent/EP0639340B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/04—Preparing bristles
    • A46D1/06—Machines or apparatus for cutting bristles
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D9/00—Machines for finishing brushes
    • A46D9/02—Cutting; Trimming
    • A46D9/025—Deflecting parts of the bristle field in order to trim the rest
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D9/00—Machines for finishing brushes
    • A46D9/02—Cutting; Trimming

Definitions

  • This invention refers to a separation device for selective separation of toothbrush bristles, which comprises a base with fixation means for a toothbrush and a support assembled over the base.
  • the separation device can additionally comprise a bristles cutting roller for selective cutting of toothbrush bristles.
  • a layout today frequently found in toothbrushes is that in which the toothbrush bristles have different lengths, some of them longer and other shorter, having for objective to provide an efficient and healthy cleaning of the user's teeth.
  • Document EP 0.458.999 discloses a device to cut toothbrush bristles into different sizes in different selected areas, comprising a support to fix the toothbrush head and at least a protecting plate associated to a determined area of the toothbrush bristles and mobile between a resting position far from the head and the bristles end, and an active position, near to the head.
  • the protecting plate is provided with board means to couple the bristle ends in the selected area and to provide a radial component of movement to the coupled bristle ends, folding the corresponding bristles to far from the bristles located outside the selected area, through the movement of said board in axial direction, from upward to downward, from a resting position to an active position.
  • This device is applicable in the separation of bristles of toothbrushes having any head shape whatsoever.
  • the protecting plates should have different shapes, each of them being specifically applicable to a cutting standard to be effected in a determined toothbrush head shape.
  • the plates may have a quite complex configuration, it being difficult to model them and thus requiring high manufacturing costs.
  • Another provision usually employed for the selective cutting of toothbrush bristles comprises a base with fixation means for a toothbrush and a mobile support over the base, the support comprising also a pair of stems which are fixedly assembled in the support and which advance in perpendicular direction towards the toothbrush bristles when the support is moved over the base.
  • This device has the disadvantage that the stems are able to separate only bristle tufts which are aligned in a parallel line to the toothbrush longitudinal axle. Particularly in the case of the toothbrush with triangular head or snake head, the bristle tufts are irregularly cut, once the tufts are not provided in a parallel line to the toothbrush longitudinal axle.
  • the objective hereof is that of providing a separation device for toothbrush bristles, able to accurately separate a group of bristles which are in a determined and selected area from those which are outside the selected area, thus allowing the toothbrush bristles to be cut into different lengths and profiles in the different selected areas.
  • the separation device for toothbrush bristles comprises a support having a pair of symmetrically pivoting stems over a first geometric plane, the support being displaceable over a portion of the base along a geometric axle that is parallel to said first geometric plane, from a resting position to a contact position of the stems with the toothbrush bristles, and a means of cam cooperating with the respective portions of the stems, during at least part of said displacement of the support over the base, in order to cause the symmetrically pivoting movement of the stems.
  • the device for selective separation of toothbrush bristles comprises a support that is mobile over a base, from the resting position to the contact position of the stems with the bristles or cutting position, along at least a guide pin fixedly assembled over the base, with at least one spring provided between the base and the support.
  • Each pivoting stem comprises a contact roller which is contact with the means of cam, and one of the stem ends has the function of acting over the bristles of the toothbrush that is fixed on the base fixation means.
  • the means of cam is configurated in a plate with a determined shape, which plate is fixedly assembled over the base.
  • the means of cam is of a substantial losangle shape, being appropriate for selective separation of a triangle head toothbrush bristles.
  • a spring having the function of keeping the stem rollers in contact with the contour of the means of cam.
  • the pivoting stems are of prismatic shape.
  • each of the stems comprises two flat and elongated portions disposed in right angle between them.
  • the stems surface being responsible for the bristles displacement is in a substantially curve form.
  • the separation device can additionally comprise a bristles cutting roller for the selective cutting of toothbrush bristles.
  • the separation device for toothbrush bristles comprises a base 1 with fixation means 2 for a toothbrush head 3 having bristles 20 which are vertically projected from their surface, and a mobile support 6 over the base 1 and from a resting position to a cutting position.
  • base 1 comprises one means of cam 4 composed of a lowering of appropriate shape configurated in a plate fixed to base 1 through screws 5.
  • Support 6 comprises a pair of stems with prismatic shape 7, which are pivotedly assembled in support 6 through joints 8.
  • a roller 9 which is linked to support 6 through a spring 10.
  • rollers 9 of stems 7 are provided in the interior of cam means 4, springs 10 having the function of keeping rollers 9 in permanent contact with the contours of cam means 4.
  • stems 7 are provided with a relative movement of opening and closing, similar to the movement of scissor blades, with their most extreme portions being close or far one from the other according to the shape of the contour of the means of cam 4.
  • Stems 7 are simetrically pivoting over a first geometric plane, with support 6 being mobile over base 1, from the resting position to the cutting position, along a geometric axle that is parallel to this first geometric plane.
  • the first geometric plane, over which stems 7 are simetrically pivoting during the advance of support 6 over base 1 is perpendicular to bristles 20 of toothbrush 3 that is attached to fixation means 2, as it can be observed in Figures 1 and 2.
  • stems 7 accurately and progressively separate one selected portion of the toothbrush bristles, according to the contours of the means of cam 4, pushing the bristles which are in the selected area away from those which are outside the selected area.
  • base 1 is provided also with a plate 11 fixed by screws 18 in the opposed end to that end which comprises the fixation means 2 for toothbrush.
  • Plate 11 is provided with a pair of guide pins 12 spaced between them, which are disposed on both sides of base 1 and which cross the support 6 through the corresponding holes, and are intruded in a pair of holes provided on the other end of base 1.
  • support 6 is mobile over base 1, from the resting position to the position of contact of stems 7 with bristles 20 or cutting position, through guide pins 12.
  • Plate 11 is also provided with screws 13, and in each of them the end of a spring 14 is attached.
  • the other end of each of the springs 14 is attached to a screw 15 provided on the end of projecting plates 16 fixed through screws on each side of support 6.
  • base 1 is fixed on a working station wherein, for example, a pneumatically driven acting element (not shown) runs perpendicularly to the geometric axle of diplacement of support 6.
  • the acting element has a cant shape and is in contact with a roller 17 provided on the back portion of support 6.
  • stems 7 of support 6 are displaced in perpendicular manner to the toothbrush bristles, describing a simetrically pivoting movement such as defined by cam means 4, while rollers 9 of stems 7 advance through the contours of cam means 4.
  • the stems separate a selected group of bristles, providing them with a side inclination in relation to the flat face of the toothbrush head, in a way to push them away from those bristles which are in the cutting area.
  • cam means 4 has a substantial losangle shape, so that the device shown is particularly appropriate for the selective separation of bristles in triangle head toothbrushes.
  • a bristles cutting roller (not shown) enters into contact with bristles outside the selected area, cutting them into a determined length and profile.
  • the driving member of support 6 pneumatically returns to its initial position, progressively releasing support 6 that returns to its resting position through the action of springs 14.
  • the pivoting stems 7 start to release the toothbrush bristles which were in the selected area, in such a way that these retake their initial vertical position.
  • a comb-type device may be used to bring them to their original position, which device is also widely known to those acquainted with the technique, not being thus shown in the annexed drawings.
  • base 1 is mobile over the rolling track (not shown) in a perpendicular direction to the geometric axle of displacement of support 6.
  • the acting element comprises a fixed plate (not shown), having a boss or protuberance that is responsible for the displacement of support 6 over base 1 while support 6 roller 17 accompanies the profile of said plate.
  • the device of this invention may be used to separate more peripheral bristles from bristles comprising a triangle head toothbrush 3.
  • the pivoting stems 7 separate the peripheral bristles from the central ones, providing the peripheral bristles with a radial movement, pushing them away from more central bristles.
  • the device of this invention may be applied to allow only the cutting of more peripheral bristles.
  • stems with prismatic section are replaced by stems which comprise two flat and elongated portions provided in a right angle between them.
  • Figure 6 schematically shows a pair of stems of this type. These stems forming a right angle are overlaped when in operation, in such a way that when the device reaches its cutting position, the most central bristles of the toothbrush are insulated from the most peripheral bristles, thus allowing that only these most peripheral bristles are cut by the cutting roller, as schematically shown in Figure 8.
  • the device of this invention may be used to separate bristles of toothbrushes with different head shapes, as well as it can be used to separate different groups of bristles among the bristles comprising the toothbrush, it being enough for this purpose to vary the configuration of the cam means 4 provided in base 1 and the shape of pivoting stems 7.
  • the cam means 4 provided in base 1 and the shape of pivoting stems 7.
  • parallel groups of bristles might be separated in the toothbrush.
  • cam 4 might consist of a protuberance in base 1, against which salient wall rollers 9 of stems 7 would be forced, for example by means of a sole spring provided between pivoting stems 7. Further, the rollers might be replaced by dry ends, that is, “followers” which would accompany the cam walls.

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  • Brushes (AREA)
EP94305348A 1993-07-21 1994-07-20 Device for selective separation of toothbrush bristles Expired - Lifetime EP0639340B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR9302945 1993-07-21
BR9302945A BR9302945A (pt) 1993-07-21 1993-07-21 Dispositivo para a separação seletiva de cerdas de uma escova de dentes e dispositivo para o corte seletivo de cerdas de uma escova de dentes

Publications (2)

Publication Number Publication Date
EP0639340A1 EP0639340A1 (en) 1995-02-22
EP0639340B1 true EP0639340B1 (en) 1998-11-18

Family

ID=4056956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94305348A Expired - Lifetime EP0639340B1 (en) 1993-07-21 1994-07-20 Device for selective separation of toothbrush bristles

Country Status (11)

Country Link
EP (1) EP0639340B1 (xx)
JP (1) JP3504343B2 (xx)
KR (1) KR950002672A (xx)
AT (1) ATE173384T1 (xx)
AU (1) AU680908B2 (xx)
BR (1) BR9302945A (xx)
CA (1) CA2128475C (xx)
DE (1) DE69414663T2 (xx)
GR (1) GR940100358A (xx)
HK (1) HK1002680A1 (xx)
TW (1) TW338924U (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10015673B4 (de) * 2000-03-29 2009-04-02 Anton Zahoransky Gmbh & Co. Einrichtung zum Bearbeiten eines Borstenfeldes von Bürsten

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2286519B (en) * 1994-02-18 1998-03-18 Sanderson J & W Ltd Two level tuft trimming of brush bristles
US5683146A (en) * 1994-07-19 1997-11-04 Falleiros; Alexandre Petrocini Device for selectively separating and cutting toothbrush bristles
BE1009283A3 (nl) * 1995-04-05 1997-01-07 Boucherie Nv G B Werkwijze en inrichting voor het bewerken van borstels.
DE19526933B4 (de) * 1995-07-24 2009-06-10 Anton Zahoransky Gmbh & Co. Vorrichtung zum Bearbeiten von Teilbereichen eines Borstenfeldes von Bürsten
DE19528834B4 (de) * 1995-08-05 2008-10-30 Anton Zahoransky Gmbh & Co. Verfahren und Vorrichtung zum Profilieren und Nachbearbeiten von Borstenfeldern
AU9327398A (en) 1997-12-22 1999-07-15 Johnson & Johnson Consumer Companies, Inc. Toothbrush and method of making the same
DE19919196C1 (de) 1999-04-28 2000-12-14 Henkel Kgaa Zahnbürste
DE19949904A1 (de) 1999-10-16 2001-04-19 Zahoransky Anton Gmbh & Co Verfahren zum Herstellen von Bürsten
DE10005534A1 (de) 2000-02-08 2001-08-09 Zahoransky Anton Gmbh & Co Verfahren zum Herstellen von Bürsten
CA2464155A1 (en) 2001-10-31 2003-05-08 R&R Ventures Incorporation Iontophoresis device
WO2004047916A1 (ja) 2002-11-27 2004-06-10 Tokuyama Corporation イオントフォレーシス装置
US8386030B2 (en) 2005-08-08 2013-02-26 Tti Ellebeau, Inc. Iontophoresis device
US8295922B2 (en) 2005-08-08 2012-10-23 Tti Ellebeau, Inc. Iontophoresis device
CN112021772B (zh) * 2020-09-18 2022-04-12 武汉市弘润创思机械有限公司 一种毛刷夹具装置及不同高度刷毛切断和打磨的加工方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3277895D1 (en) * 1981-11-04 1988-02-11 Boucherie Nv G B Device for separating rows of brush hairs
BE899621A (nl) * 1984-05-10 1984-11-12 Boucherie Nv G B Inrichting voor het kontroleren van het al dan niet vastzitten van de vezeltappen bij borstels.
DE4006325A1 (de) * 1990-03-01 1991-09-05 Schlerf Coronet Werke Borstenbearbeitung
ES2074496T3 (es) * 1990-05-31 1995-09-16 Boucherie Nv G B Dispositivo para cortar cerdas de cepillos de dientes a distintas longitudes en distintas zonas elegidas de un modelo de haz.
DE4138777C2 (de) * 1991-11-26 2003-06-18 Zahoransky Anton Gmbh & Co Verfahren und Vorrichtung zum Bearbeiten profilierter Borstenfelder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10015673B4 (de) * 2000-03-29 2009-04-02 Anton Zahoransky Gmbh & Co. Einrichtung zum Bearbeiten eines Borstenfeldes von Bürsten

Also Published As

Publication number Publication date
AU6755394A (en) 1995-02-02
JP3504343B2 (ja) 2004-03-08
JPH07148022A (ja) 1995-06-13
TW338924U (en) 1998-08-21
BR9302945A (pt) 1995-03-01
ATE173384T1 (de) 1998-12-15
DE69414663D1 (de) 1998-12-24
HK1002680A1 (en) 1998-09-11
AU680908B2 (en) 1997-08-14
GR940100358A (el) 1996-06-25
KR950002672A (ko) 1995-02-16
CA2128475C (en) 2005-03-08
EP0639340A1 (en) 1995-02-22
CA2128475A1 (en) 1995-01-22
DE69414663T2 (de) 1999-05-06

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