EP4003094B1 - Support de serrage pour porte-soies - Google Patents

Support de serrage pour porte-soies Download PDF

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Publication number
EP4003094B1
EP4003094B1 EP20753901.6A EP20753901A EP4003094B1 EP 4003094 B1 EP4003094 B1 EP 4003094B1 EP 20753901 A EP20753901 A EP 20753901A EP 4003094 B1 EP4003094 B1 EP 4003094B1
Authority
EP
European Patent Office
Prior art keywords
bristle carrier
leaf spring
clamping holder
contact points
holder according
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.)
Active
Application number
EP20753901.6A
Other languages
German (de)
English (en)
Other versions
EP4003094A1 (fr
Inventor
Bart Gerard Boucherie
Henk Vandenbussche
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.)
GB Boucherie NV
Original Assignee
GB Boucherie NV
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 GB Boucherie NV filed Critical GB Boucherie NV
Publication of EP4003094A1 publication Critical patent/EP4003094A1/fr
Application granted granted Critical
Publication of EP4003094B1 publication Critical patent/EP4003094B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/08—Parts of brush-making machines
    • A46D3/087—Holders or supports for brush bodies
    • 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
    • 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
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/04—Machines for inserting or fixing bristles in bodies

Definitions

  • the invention relates to a bristle base clamping holder for receiving and positioning a bristle base which is transported through processing stations with the bristle base releasably attached thereto.
  • the bristle carrier is part of a brush to be manufactured.
  • Such clamping holders are workpiece holders for bristle carriers, which are completed with tufts of bristles in several processing stations. These clamps are used to simplify holding and aligning the bristle base in the individual processing stations, because the bristle base is positioned once in the clamp and clamped therein, and then the alignment of the bristle base in the individual processing station can be carried out via the alignment of the larger and usually metal existing clamping holder.
  • the transport from station to station is also simplified by such clamping holders because, in contrast to the bristle carrier, these clamping holders can be designed in such a way that they have suitable projections and recesses for optimal transport in transport devices.
  • Such clamping holders are usually used universally, that is, they have a receptacle that can be used for different bristle carriers. One speaks here of universal bristle holders.
  • Such a bristle carrier clamping holder is from DE 10 2011 118 638 A1 known.
  • the bristle carrier is pressed from below against upper stops by a rocker-like pressure beam that is prestressed upwards.
  • the rocker is pressed against the bristle holder from below by a pressure spring.
  • a bristle carrier clamp in which the front end of the bristle carrier, also called the tip, is pressed into a prism-like tapered receptacle in the clamp, which forms a stop at the top.
  • the tip Distant from the tip there are two spaced apart and laterally converging and distancing, mushroom-type retaining pins which laterally approach and engage the bristle carrier overlap with the protruding head so that upper stops are formed.
  • a prestressed pressure plate presses the bristle carrier from bottom to top against the stops on the one hand in the prism and on the other hand against the heads of the mushroom-like pins.
  • the object of the invention is to create a bristle holder clamping device that can also be used universally and is characterized by a secure positioning of the bristle carriers in the clamping device, even with bristle carriers of different sizes.
  • a bristle base clamping holder for receiving and positioning a bristle base which is transported through processing stations with the bristle base releasably attached thereto, with a receptacle for the bristle base which has a lower pretensioning device and a number of upper stops, the pretensioning device holding the bristle base presses from below against the stops and the prestressing device has a plurality of locally spaced contact points which are separately or separately prestressed in groups and which press against the bristle carrier.
  • the bristle carrier tensioning holder according to the invention is characterized in that the bristle carrier is not pressed upwards by a prestressed plate, but rather that several contact points are provided that are locally spaced apart from one another. Between these contact points are sections without contact with the bristle carrier. These contact points are each prestressed in groups or separately, i.e. with a different or differently shaped bristle carrier, which is flatter at one point than another bristle carrier, for example, the contact point can spring out further and thus ensure reliable contact and also prestress the Provide bristle carrier at this contact point.
  • the contact points could be biased differently in groups, but preferably each biased separately.
  • two contact points are provided with their own prestressing spring and two more or a single contact point with a different prestressing spring. If all contact points are biased separately, each contact point has its own biasing spring.
  • the biasing device includes, for example, a plurality of leaf springs that have spaced contact points. In other words, this means that the leaf springs can compress independently of one another. One leaf spring holds one contact point and the other another contact point.
  • Leaf springs are very easy to manufacture and have the advantage that they are very flat, which is advantageous for the overall height of the bristle carrier clamping holder according to the invention.
  • Leaf springs can also be formed together from a one-piece part, with leaf spring arms of different lengths. Different tongues are cut out of a leaf spring metal, so to speak, which then merge into one another at the ends of the leaf spring that are not free.
  • the advantage is that the several elements responsible for the preload, namely the leaf springs, merge into one another in one piece, which makes assembly and alignment much easier.
  • a variant of the invention provides that a shorter leaf spring is positioned centrally in the one-piece part and a longer leaf spring has two arms between which the shorter leaf spring runs. The two arms rejoin after the free end of the shorter leaf spring and extend to a contact point of the longer leaf spring.
  • This variant is characterized by a particular compactness in the lateral direction, that is to say transversely to the longitudinal direction of the leaf spring, and also by the fact that the longer leaf spring is symmetrical.
  • the two contact points namely those on the shorter and those on the longer leaf spring, are positioned along a central axis running parallel to the longitudinal direction of the shorter leaf spring. This ensures that the contact points can attack the center of the bristle carrier.
  • two contact points can be provided at the free end of the longer leaf spring in order to achieve a broader contact surface.
  • the contact points are provided at the free ends of the leaf springs in order to achieve maximum spring deflection.
  • contact points are formed by separate parts attached to the leaf springs, on the one hand point or line contact can be achieved very easily or wear or friction with bristle carriers can be optimized.
  • these separate parts are unscrewed or molded plastic parts that sit on leaf spring openings and penetrate them.
  • the upper stops are formed by a roof structure supporting a tip of the bristle carrier and/or by a holding body that can be moved away from the tip. Due to the movement of the movable holding body relative to the holding body at the tip, the bristle holder is always gripped and tensioned.
  • the holding bodies have a rounded section and an adjoining, upper, protruding collar.
  • the collar in each case forms an upper stop and the rounded section ensures that the bristle holder is held laterally.
  • the holding bodies can move laterally towards one another and away from one another in order to laterally clamp the bristle carrier.
  • the bristle carrier tensioning holder according to the invention also has one or more springs which move the holding bodies towards one another so that they always fix the bristle carrier in place without external influence.
  • the movable holding bodies can be moved towards the holding body of the tip, so that, for example, the movable holding bodies accommodate the thinned neck of a toothbrush body between them and press against the thickening transition to the brush head.
  • the Bristle carrier pressed with its tip in the local holding body and aligned.
  • the holding bodies are configured like rollers in order to reduce friction and ensure point or line contact.
  • leaf springs which have spaced contact points
  • a shorter leaf spring under the roof structure with its or their contact points can press the bristle carrier in this area against the associated stop and a longer leaf spring with its or their contact points can press the bristle carrier press against the stops on the holding bodies in their area.
  • the contact points themselves can be designed as ball or roller sections, which, as mentioned, are preferably produced by injection molding or produced separately and then locked on the leaf springs.
  • the invention preferably provides that the prestressing device is formed exclusively by a one-piece part on which a plurality of leaf springs are embodied. This ensures a very simple and cost-effective design with high functional reliability and little vertical installation space.
  • FIG 1 a bristle carrier clamping holder 10 is shown, with which a bristle carrier 12 is fixed and the resulting unit shown can pass through several processing stations.
  • the bristle base 12 is part of a toothbrush having a handle 14 and an apertured head 16 into which tufts of bristles are inserted.
  • the bristle base clamp 10 has a base 18 which is partially hollow on the inside, as will be explained below.
  • a roof structure 20 is fastened to the base 18 on its upper side, which can be seen from the front, in figure 1
  • the stop 26 is part of the roof structure 20 and may be integral with the remainder of the roof structure 20 or may be a separate part that is attached to the remainder of the roof structure 20 and is therefore interchangeable and customizable.
  • the side walls 24 take between them the tip 28 of the bristle carrier 12 (see figure 3 ) and center the bristle carrier 12 in the clamping holder 10 laterally.
  • the base 18 Spaced and remote from the tip 28, the base 18 carries two roller-like support bodies 30 (see Fig figure 1 ), each having a vertical pivot axis A, about which they can be pivoted back and forth in the direction of the arrow.
  • the holding bodies 30 are seated on pivoted base parts 32.
  • the base parts 32 have downwardly protruding extensions which protrude into the base 18 and which are acted upon by force transmission means which apply a force to the holding body 30 via a tension spring 34 which is shown symbolically.
  • This force acts in such a way that the holding bodies 30 pivot toward one another. They thus take the bristle carrier 12 laterally between them and clamp and center it at the rear end of the brush head 16.
  • On The upper side of each holding body 30 has a laterally protruding collar 40, which serves as a stop in the vertical upward direction for the bristle carrier 12.
  • lower biasing device 42 is provided. This serves to press the bristle carrier 12 upwards against the stops formed by the stop 26 and the respective collar 40 .
  • the pretensioning device 42 comprises several, in figure 4 shown leaf springs 44, 47, which, however, merge into one another in one piece and are stamped out of a common spring plate.
  • a central leaf spring 44 has a free end to which is attached a separate part to form a contact point 46, which is designed as a ball or roller section. This separate part is in the embodiment according to figure 4 attached to the middle leaf spring 44 by a screw pushed through from below.
  • a longer leaf spring 47 surrounds the central leaf spring 44 and has two lateral arms 48 running along the leaf spring 44, which unite after the free end of the central leaf spring 44 and run to a free end where a contact point 50 is attached, here also via a screw 52.
  • This separate part also has a ball or roller section.
  • the two parts forming the contact points 46 and 50 are in particular made of plastic.
  • the leaf springs 44, 47 merge into a holding section 54 which, for example, has openings 56 for fastening to the base 18 or to the roof structure 20.
  • the contact points 46, 50 are each separately biased upwards by the two leaf springs 44, 47 when they press against the brush head 16.
  • the contact point 50 is located in a side view below the stops formed by the collars 40, and the contact point 46 is below the stop 26, so that the pretensioning device 42
  • the force exerted acts in each case directly via the bristle carrier 12 into the stop lying on the opposite side of the bristle carrier.
  • the action of the tension spring 34 for the holding body 30 is canceled in the corresponding processing station and these are pivoted away from one another, so that the bristle carrier 12 can be removed from the clamping holder 10 or reinserted. Then, when the action of the spring 34 is again exerted on the holding bodies 30 , these pivot laterally toward one another again, so that the rounded, roller-like sections 60 of the holding bodies 30 press laterally against the bristle carrier 12 .
  • the variant of the pretensioning device according to figure 5 differs from the after figure 4 in that the parts forming the contact points 46, 50 are not separately manufactured parts, which are then attached to the leaf springs 44, 47, but they are molded directly onto the leaf springs 44, 47, for example by the leaf springs 44, 47 at their free ends each have one or more openings through which the liquid plastic can extend in order to achieve a form-fitting mount on the back via a mushroom-like projection.
  • each contact point 46, 50 is separately biased by its own spring.
  • e.g. B. also carry the end of the leaf spring 47 two adjacent contact points, so that then groups of contact points are biased separately.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Brushes (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Claims (10)

  1. Bride de serrage pour support de poils pour la réception et le positionnement d'un support de poils (12) qui fait partie d'une brosse à fabriquer, la bride de serrage étant transportée à travers des stations de traitement ensemble avec le support de poils (12) fixé de manière détachable à celle-ci, comprenant un logement (22) pour le support de poils (12), qui présente un dispositif de précontrainte inférieur (42) et une pluralité de butées supérieures (26), le dispositif de précontrainte (42) poussant le support de poils (12) depuis le bas contre les butées (26), et le dispositif de précontrainte (42) présentant une pluralité de points de contact (46, 50) spatialement espacés les uns des autres, caractérisée en ce que les points de contact (46, 50) sont précontraints séparément par groupes ou chacun séparément et poussent contre le support de poils (12).
  2. Bride de serrage pour support de poils selon la revendication 1, caractérisée en ce que le dispositif de précontrainte (42) présente une pluralité de ressorts à lames (44, 47) qui présentent des points de contact (46, 50) espacés.
  3. Bride de serrage pour support de poils selon la revendication 2, caractérisée en ce que les ressorts à lames (44, 47) forment ensemble une pièce monobloc présentant des bras de ressort à lames de différentes longueurs.
  4. Bride de serrage pour support de poils selon la revendication 3, caractérisée en ce qu'un ressort à lames plus court (44) est agencé de manière centrale dans la pièce monobloc et un ressort à lames plus long (47) présente deux bras de ressort à lames (48) entre lesquels s'étend le ressort à lames plus court (44), les deux bras de ressort à lames (48) se rejoignant de nouveau après l'extrémité libre du ressort à lames plus court (44) et s'étendant vers un point de contact (50) du ressort à lames plus long (47).
  5. Bride de serrage pour support de poils selon l'une des revendications 2 à 4, caractérisée en ce que les points de contact (46, 50) sont prévus à des extrémités libres des ressorts à lames (44, 47).
  6. Bride de serrage pour support de poils selon l'une des revendications 2 à 5, caractérisée en ce que les points de contact (46, 50) sont formés par des pièces séparées fixées aux ressorts à lames (44, 47).
  7. Bride de serrage pour support de poils selon l'une des revendications précédentes, caractérisée en ce que les butées supérieures (26) sont formées par une structure de toit (20) soutenant une pointe (28) du support de poils (12) et/ou des corps de retenue (30) mobiles éloignés de la pointe (28) qui sont en particulier pourvus d'un tronçon arrondi (60) et d'une collerette (40) supérieure adjacente latéralement en saillie, la collerette (40) fournissant respectivement la butée supérieure et le tronçon arrondi (60) fournissant une fixation latérale du support de poils (12).
  8. Bride de serrage pour support de poils selon la revendication 7, caractérisée en ce que le dispositif de précontrainte (42) comporte une pluralité de ressorts à lames (44, 47) présentant des points de contact espacés (46, 50), et en ce qu'un ressort à lames plus court (44) sous la structure de toit (20) et un ressort à lames plus long (47) entre les corps de retenue poussent contre le support de poils (12) par l'intermédiaire des points de contact (46, 50) respectivement associés.
  9. Bride de serrage pour support de poils selon la revendication 7 ou 8, caractérisée en ce que les corps de retenue (30) présentent des tronçons arrondis (60) semblables à des rouleaux au moyen desquels ils poussent contre le support de poils (12).
  10. Bride de serrage pour support de poils selon l'une des revendications précédentes, caractérisée en ce que les points de contact (46, 50) sont réalisés sous forme de tronçon de boule ou de rouleau.
EP20753901.6A 2019-07-31 2020-07-30 Support de serrage pour porte-soies Active EP4003094B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019120756.8A DE102019120756B3 (de) 2019-07-31 2019-07-31 Borstenträger-Spannhalter
PCT/EP2020/071548 WO2021019032A1 (fr) 2019-07-31 2020-07-30 Support de serrage pour porte-soies

Publications (2)

Publication Number Publication Date
EP4003094A1 EP4003094A1 (fr) 2022-06-01
EP4003094B1 true EP4003094B1 (fr) 2023-06-07

Family

ID=72039569

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20753901.6A Active EP4003094B1 (fr) 2019-07-31 2020-07-30 Support de serrage pour porte-soies

Country Status (5)

Country Link
EP (1) EP4003094B1 (fr)
CN (1) CN114206159A (fr)
DE (1) DE102019120756B3 (fr)
TW (1) TWI836125B (fr)
WO (1) WO2021019032A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5593213A (en) * 1994-03-11 1997-01-14 Gillette Canada Inc. Bristle finishing fork
US5863102A (en) * 1997-06-24 1999-01-26 Colgate-Palmolive Company Method and apparatus to permit attachment of bristles to toothbrushes with resiliently flexible heads and to thereafter permit the trimming and end rounding of such bristles
JP3916832B2 (ja) * 1999-05-14 2007-05-23 ライオン株式会社 ブラシおよびその植毛装置ならびに植毛方法
CN101703345B (zh) * 2009-07-03 2011-04-20 扬州工业职业技术学院 牙刷机械自动夹具
DE102011013621B4 (de) * 2011-03-11 2018-02-22 Gb Boucherie Nv Verfahren und Vorrichtung zum Herstellen von Bürsten
DE102011118638B4 (de) * 2011-11-15 2021-12-30 Zahoransky Ag Spannkluppe
CN202774889U (zh) * 2012-08-28 2013-03-13 甘浩彬 一种牙刷植毛机的夹具
BE1022828B1 (de) * 2015-02-23 2016-09-15 Gb Boucherie Nv Bürstenherstellungsvorrichtung, Bürstenkörperhalter und Verfahren zum Herstellen einer Bürste
CN205082895U (zh) * 2015-09-22 2016-03-16 东莞市拓研自动化设备有限公司 全自动牙刷生产线万能牙刷夹具
DE102016011337A1 (de) * 2016-09-21 2018-03-22 Zahoransky Ag Bündelabnahmevorrichtung, Bürstenherstellungsmaschine, Verfahren zur Herstellung eines Bündelabnehmers sowie Verfahren zur Herstellung eines Gegenstücks einer Bündelabnahmevorrichtung

Also Published As

Publication number Publication date
DE102019120756B3 (de) 2020-11-12
CN114206159A (zh) 2022-03-18
EP4003094A1 (fr) 2022-06-01
TWI836125B (zh) 2024-03-21
TW202112273A (zh) 2021-04-01
WO2021019032A1 (fr) 2021-02-04

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