US20060123574A1 - Compression moulded part - Google Patents

Compression moulded part Download PDF

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Publication number
US20060123574A1
US20060123574A1 US10/535,436 US53543605A US2006123574A1 US 20060123574 A1 US20060123574 A1 US 20060123574A1 US 53543605 A US53543605 A US 53543605A US 2006123574 A1 US2006123574 A1 US 2006123574A1
Authority
US
United States
Prior art keywords
decoration
injection molded
molded part
encapsulation
plastic
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
US10/535,436
Other languages
English (en)
Inventor
Jens Storkel
Harald De Buhr
Lutz Voigtmann
Roland Heckenthaler
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.)
Braun GmbH
Original Assignee
Braun GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32185401&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20060123574(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Braun GmbH filed Critical Braun GmbH
Assigned to BRAUN GMBH reassignment BRAUN GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DE BUHR, HARALD, HECKENTHALER, ROLAND, STORKEL, JENS, VOIGTMANN, LUTZ
Publication of US20060123574A1 publication Critical patent/US20060123574A1/en
Priority to US14/600,704 priority Critical patent/US9066577B1/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
    • A46B5/02—Brush bodies; Handles integral with brushware specially shaped for holding by the hand
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B15/00—Other brushes; Brushes with additional arrangements
    • A46B15/0087—Brushes with decoration on or in the handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0003—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor of successively moulded portions rigidly joined to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert
    • B29C2045/1673—Making multilayered or multicoloured articles with an insert injecting the first layer, then feeding the insert, then injecting the second layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/42—Brushes
    • B29L2031/425—Toothbrush
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628—Nonplanar uniform thickness material

Definitions

  • the invention relates to an injection molded part, in particular a toothbrush body, with a basic body injection-molded from plastic, on the surface of which a decoration is two-dimensionally applied and is covered by an encapsulation of a plastic by a second injection-molding operation.
  • the high injection pressure and the high temperature of the plastic of the encapsulation may cause damage to the surface of the visible side of the decoration during the injection-molding operation of the encapsulation.
  • the object of the invention is therefore to provide an injection molded part of the type stated at the beginning, in the encapsulation of the basic body of which damage to the visible side of the decoration is at least largely avoided.
  • the basic body consisting of a transparent and/or opaque and/or translucent plastic and the decoration being applied with its visible side to the surface of the basic body.
  • the visible side of the decoration is covered by the basic body during the injection-molding operation of the encapsulation, and is consequently protected from damage.
  • the rear side is much less sensitive. Damage to it caused by the injection pressure and thermal loading has at least largely no influence on the visible side of the decoration, so that its decorative effect is not impaired.
  • the plastic of the encapsulation may be non-transparent. It may, however, also be a transparent and/or opaque and/or translucent plastic.
  • the encapsulation may cover one or more decoration-free regions of the basic body with material engagement, which is brought about by the superficial melting of the plastic of the basic body during the encapsulating operation caused by the plastic of the encapsulation.
  • the encapsulation covers the basic body without a form fit, fastening of the encapsulation to the basic body takes place by the adhesion of the material engagement alone, which leads to greater freedom in the shaping of the injection molded part.
  • the plastics of the basic body and the encapsulation may have different degrees of hardness.
  • the decoration-free regions may be arranged in the edge region of the decoration 4 for the material-engaging connection.
  • the encapsulation may extend over the basic body fully or partly beyond the edge region of the decoration.
  • the material-engaging connection is that the decoration-free regions are arranged in the region of the decoration, whereby a secure connection of the encapsulation to the basic body can be achieved even in the case of decorations covering a large surface area.
  • the basic body may have in one or more of the decoration-free regions recesses which are open toward its surface and are filled by the plastic of the encapsulation, since the surface area of the encapsulated decoration-free regions is increased in this way.
  • the recess may represent one or more alphanumeric characters or symbols, such as for example a company logo.
  • the surface of the basic body bearing the decoration may be either planar or else convexly curved.
  • the region of the surface of the basic body surrounding the decoration can be formed at a lower-lying level than the surface area covered by the decoration, which can be achieved in a simple way by the region of the surface of the basic body surrounding the decoration being formed in a convexly rounded manner. In this way, an enlargement of the decoration-free region which can be encapsulated is at the same time achieved.
  • the convex rounding may in this case extend into the outer edge region of the surface of the basic body bearing the decoration.
  • the decoration may be formed in a wide variety of ways.
  • the decoration may be an insert part or a hot transfer film or a metallized film.
  • the decoration may also be applied to the surface of the basic body by printing, in particular by pad printing or screen printing or laser printing or inkjet printing.
  • a further decoration may be applied to the encapsulation and be covered by a further encapsulation, which covers one or more regions of the first encapsulation that are free from the further decoration with material engagement with respect to the first encapsulation.
  • FIG. 1 shows a cross section of a first exemplary embodiment of an injection molded part
  • FIG. 2 shows a cross section of a second exemplary embodiment of an injection molded part
  • FIG. 3 shows a cross section of a third exemplary embodiment of an injection molded part.
  • the injection molded parts represented in the figures are toothbrush bodies.
  • the subject matter of the invention can be used in the case of any type of injection molded part.
  • the injection molded parts may also be, for example, housings of electric razors, wet razors or housings of domestic appliances.
  • the injection molded parts represented have a basic body 1 , which was produced in a first operation from a transparent plastic by injection molding.
  • the upwardly directed surface 2 of the basic body 1 is convexly curved.
  • Printed onto the surface 2 by pad printing is a decoration 4 , the visible side 5 of which is directed toward the surface 2 of the basic body 1 and can be seen by an observer through the transparent basic body 1 .
  • the surface area of the decoration 4 is smaller than the surface 2 , a decoration-free edge region enclosing the decoration 4 is formed on the surface 2 .
  • the basic body 1 was placed into an overmolding tool, for which purpose the basic body 1 is provided at its peripheral side wall, enclosing the surface 2 , with a peripheral shoulder 3 serving for acceptance in the overmolding tool.
  • the basic body 1 , the decoration 4 and the decoration-free edge region 6 have been provided with an encapsulation 7 in a covering manner.
  • this encapsulation 7 also covers over a further decoration-free region 8 within the region of the decoration 4 .
  • a material engagement between the materials of the basic body 1 and of the encapsulation 7 has been produced by the encapsulating operation and has the effect of connecting these two parts firmly to each other.
  • the encapsulation 7 is transparent and on it, over the decoration, a further decoration 4 ′ has been applied by pad printing with its visible side 5 ′ directed toward the basic body 1 and covered in a further encapsulating operation by a further encapsulation 7 ′.
  • This also involves the second decoration 4 ′ being enclosed by a decoration-free edge region 6 ′ of the first encapsulation, the further encapsulation 7 ′ also extending over the further edge region 6 ′, so that the further encapsulation 7 ′ is connected to the encapsulation 7 by material engagement of the materials of these two parts to each other.
  • the further decoration 4 ′ can also be seen by an observer through the transparent basic body 1 and the transparent encapsulation 7 ′.
  • the encapsulation 7 and 7 ′ extends beyond edge regions 6 and 6 ′, respectively, into the region of the side wall, while in the case of the exemplary embodiment of FIG. 3 the encapsulation 7 covers only the decoration 4 and the edge region 6 of the surface 2 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Brushes (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US10/535,436 2002-11-09 2003-10-22 Compression moulded part Abandoned US20060123574A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/600,704 US9066577B1 (en) 2002-11-09 2015-01-20 Injection molded part

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10252163.8 2002-11-09
DE10252163A DE10252163A1 (de) 2002-11-09 2002-11-09 Spritzling
PCT/EP2003/011683 WO2004043669A1 (fr) 2002-11-09 2003-10-22 Piece moulee par injection

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/011683 A-371-Of-International WO2004043669A1 (fr) 2002-11-09 2003-10-22 Piece moulee par injection

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/600,704 Continuation US9066577B1 (en) 2002-11-09 2015-01-20 Injection molded part

Publications (1)

Publication Number Publication Date
US20060123574A1 true US20060123574A1 (en) 2006-06-15

Family

ID=32185401

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/535,436 Abandoned US20060123574A1 (en) 2002-11-09 2003-10-22 Compression moulded part
US14/600,704 Expired - Fee Related US9066577B1 (en) 2002-11-09 2015-01-20 Injection molded part

Family Applications After (1)

Application Number Title Priority Date Filing Date
US14/600,704 Expired - Fee Related US9066577B1 (en) 2002-11-09 2015-01-20 Injection molded part

Country Status (7)

Country Link
US (2) US20060123574A1 (fr)
EP (1) EP1567314B2 (fr)
CN (1) CN100431821C (fr)
AT (1) ATE355954T1 (fr)
AU (1) AU2003283288A1 (fr)
DE (2) DE10252163A1 (fr)
WO (1) WO2004043669A1 (fr)

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070269671A1 (en) * 2004-08-27 2007-11-22 Andreas Hirschfelder Decorated Injection-Moulded Article, Method for Producing One Such Article, and Transfer Film for Using in One Such Method
EP1977875A1 (fr) * 2007-04-02 2008-10-08 Samsung Electronics Co., Ltd Système de moulage par injection avec une unité pour imprimer et procédé utilisant le système
US20090160087A1 (en) * 2007-12-19 2009-06-25 Gawain Yang In-mold decoration method & apparatus
US20090313778A1 (en) * 2008-06-20 2009-12-24 Colgate-Palmolive Toothbrush With Visual and/or Other Sensory Effects
US20100101037A1 (en) * 2006-11-29 2010-04-29 Trisa Holding Ag Toothbrush with partially coated surface
WO2010147475A1 (fr) * 2009-06-15 2010-12-23 Jordan As Manche pour dispositif de nettoyage et procédé pour le produire
USD631257S1 (en) 2009-12-15 2011-01-25 Colgate-Palmolive Company Toothbrush
USD632084S1 (en) 2008-08-29 2011-02-08 Colgate-Palmolive Company Toothbrush
USD632484S1 (en) 2009-12-18 2011-02-15 Eduardo Jimenez Toothbrush handle with tissue cleaner
USD642804S1 (en) 2009-12-15 2011-08-09 Colgate-Palmolive Company Toothbrush
USD642803S1 (en) 2008-08-29 2011-08-09 Colgate-Palmolive Company Toothbrush
USD642802S1 (en) 2008-08-29 2011-08-09 Colgate-Palmolive Company Toothbrush
USD654270S1 (en) 2009-12-18 2012-02-21 Colgate-Palmolive Company Toothbrush handle
USD654695S1 (en) 2009-12-18 2012-02-28 Colgate-Palmolive Company Toothbrush
USD654696S1 (en) 2009-12-18 2012-02-28 Colgate-Palmolive Company Toothbrush handle with tissue cleaner
USD655916S1 (en) 2008-08-29 2012-03-20 Colgate-Palmolive Company Toothbrush
USD655918S1 (en) 2009-12-15 2012-03-20 Colgate-Palmolive Company Toothbrush
USD655917S1 (en) 2009-12-15 2012-03-20 Colgate-Palmolive Company Toothbrush
USD671325S1 (en) 2009-12-15 2012-11-27 Colgate-Palmolive Company Toothbrush
USD675830S1 (en) 2009-12-18 2013-02-12 Colgate-Palmolive Company Toothbrush
US20130174366A1 (en) * 2012-01-05 2013-07-11 Ranir, Llc Toothbrush with refractive faces
USD690518S1 (en) 2010-02-26 2013-10-01 Colgate-Palmolive Company Head portion of an oral care implement
JP2013255790A (ja) * 2012-05-17 2013-12-26 Ufc Supply:Kk ブラシハンドルおよびその製造方法
US8776302B2 (en) 2008-08-29 2014-07-15 Colgate-Palmolive Company Oral care implement
US9066577B1 (en) 2002-11-09 2015-06-30 Braun Gmbh Injection molded part
US9167890B2 (en) 2011-02-01 2015-10-27 Colgate-Palmolive Company Oral care implement having a decorative member and a method of forming the same
USD777446S1 (en) 2015-07-23 2017-01-31 Colgate-Palmolive Company Oral care implement handle
USD780457S1 (en) 2014-12-23 2017-03-07 Colgate-Palmolive Company Oral care implement
US9802347B2 (en) 2015-02-02 2017-10-31 Colgate-Palmolive Company Method of forming an oral care implement
US10021959B2 (en) 2014-12-23 2018-07-17 Colgate-Palmolive Company Oral care implement having multi-component handle
US10182644B2 (en) 2014-12-23 2019-01-22 Colgate-Palmolive Company Oral care implement
US10226118B2 (en) 2014-12-23 2019-03-12 Colgate-Palmolive Company Oral care implement having multi-component handle
US10426250B2 (en) 2014-12-23 2019-10-01 Colgate-Palmolive Company Oral care implement
US10455931B2 (en) 2014-12-23 2019-10-29 Colgate-Palmolive Company Oral care implement
US10595628B2 (en) 2014-12-23 2020-03-24 Colgate-Palmolive Company Oral care implement
US10660430B2 (en) 2014-12-23 2020-05-26 Colgate-Palmolive Company Oral care implement having multi-component handle
US10687610B2 (en) 2014-12-23 2020-06-23 Colgate-Palmolive Company Oral care implement
US10743646B2 (en) 2014-12-23 2020-08-18 Colgate-Palmolive Company Oral care implement
US11229281B2 (en) 2014-12-23 2022-01-25 Colgate-Palmolive Company Oral care implement
US11291293B2 (en) 2014-12-23 2022-04-05 Colgate-Palmolive Company Oral care implement
USD960582S1 (en) 2020-12-10 2022-08-16 Colgate-Palmolive Company Oral care refill head
US11517412B2 (en) 2017-12-12 2022-12-06 Colgate-Palmolive Company Oral care implement
USD997567S1 (en) 2018-12-18 2023-09-05 Colgate-Palmolive Company Electric toothbrush
US11833004B2 (en) 2017-12-12 2023-12-05 Colgate-Palmolive Company Oral care implement and handle and refill head thereof

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NO20055077D0 (no) * 2005-10-31 2005-10-31 Jordan As Anordning ved tannborste
DE102006011983A1 (de) 2006-03-16 2007-09-20 Braun Gmbh Verfahren zum Bedrucken einer Oberfläche
DE102007051380A1 (de) * 2007-10-25 2009-05-14 Continental Automotive Gmbh Bedienelement
DE102013010508A1 (de) * 2013-06-24 2014-12-24 M + C Schiffer Gmbh Bürste, insbesondere Zahnbürste
DE102014214105A1 (de) * 2014-07-21 2016-01-21 BSH Hausgeräte GmbH Hausgerätekomponentenherstellverfahren zur Herstellung einer Hausgerätekomponente und Hausgerätekomponente
GB2538560B (en) 2015-05-22 2019-05-29 Dyson Technology Ltd A hand held appliance
CA2986138A1 (fr) 2015-07-23 2017-01-26 Colgate-Palmolive Company Outil de soin buccal
DE102016015044B4 (de) 2016-12-16 2019-08-08 Jan Wisomiersky Verfahren zur Herstellung von Substraten mit dekorativen Oberflächen und/oder Symboliken
DE102018128194A1 (de) * 2018-11-12 2020-05-14 Leonhard Kurz Stiftung & Co. Kg Verfahren zur Herstellung eines Bauteils sowie Spritzgießvorrichtung
EP3656250A1 (fr) 2018-11-21 2020-05-27 Curaden AG Tête de brosse à dents

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CN1708385A (zh) 2005-12-14
CN100431821C (zh) 2008-11-12
EP1567314A1 (fr) 2005-08-31
US20150164209A1 (en) 2015-06-18
DE50306770D1 (de) 2007-04-19
DE10252163A1 (de) 2004-05-27
WO2004043669A1 (fr) 2004-05-27
EP1567314B1 (fr) 2007-03-07
US9066577B1 (en) 2015-06-30
EP1567314B2 (fr) 2011-05-25
AU2003283288A1 (en) 2004-06-03
ATE355954T1 (de) 2007-03-15

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