EP0283476B1 - A method of manufacturing a plastic-framed brush element - Google Patents

A method of manufacturing a plastic-framed brush element Download PDF

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Publication number
EP0283476B1
EP0283476B1 EP86906837A EP86906837A EP0283476B1 EP 0283476 B1 EP0283476 B1 EP 0283476B1 EP 86906837 A EP86906837 A EP 86906837A EP 86906837 A EP86906837 A EP 86906837A EP 0283476 B1 EP0283476 B1 EP 0283476B1
Authority
EP
European Patent Office
Prior art keywords
plastic
brush
fibres
manufacturing
plastic mass
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
Application number
EP86906837A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0283476A1 (en
Inventor
Mauno Kirkkala
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.)
Ce Lindgren Te Porvoo Finland Oy AB
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 AT86906837T priority Critical patent/ATE63434T1/de
Publication of EP0283476A1 publication Critical patent/EP0283476A1/en
Application granted granted Critical
Publication of EP0283476B1 publication Critical patent/EP0283476B1/en
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/04—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by mouldable materials, e.g. metals, cellulose derivatives, plastics
    • 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

  • This invention concerns a method of manufacturing a plastic-framed brush element.
  • FR-A-2 414 889 discloses a method of manufacturing a plastic-framed brush element, in which a strip of a thermoplastic material is fixed on layers formed of brush fibres by passing a fixing tool.
  • Futher previuosly known brush elements have been manufactured in such a way that the bristle fibres have been melted or glued together at one end to form in this way a 0,5-1,5 cm thick comb-like ribbon.
  • the fibre ribbon that is manufactured by joining together is then pressed into a metal backing part, when a finished product is formed in which the points of the fibres point straight outwards from the metal backing strip.
  • Brushes are usually straight strips or have round cylinder-like brush disk from. This present method, however, includes very many work stages in the manufacture of the metal backing strip, so that the manufacturing time of the product has become unnecessarily great.
  • a molten plastic mass is first sprayed on top of the joined brush fibres and that the preform thus created is placed in an open form in such a way that when the forms are closed the molten plastic mass is squeezed into the shape of the form and at the same time fills the gaps between the fibres in the backing strip.
  • Figure 1 shows the spraying of the plastic mass on top of the brush fibres. From the one end the fibre ribbon 1 manufactured from fibres melted or glued together is transported for example between two turning conveyor belts under nozzle 2, which simultaneously squeezes the ribbon-like molten plastic mass 3 on top of the fibre ribbon in such a way that the plastic mass is bent by about 20-30 mm on either side of the fibre ribbon.
  • the thickness of the molten plastic strip is 2-15 mm depending on the volumme of the backing part of the brush component.
  • a length of the preform thus formed is cut as required and bent around the lower part 4 of the form shown in Figure 2.
  • the upper form 5 is pressed against the lower form 4 in accordance with Figure 3, when the plastic mass is squeezed into the shape of the form at the same time filling the gaps between the fibres in the backing strip and thus the solid plastic backing strip 6 is formed.
  • metal reinforcing pieces or securing pieces can be placed in the preform to be squeezed before the halves of the form are pressed together.
  • the fibres (8) are firmly fixed inside the backing strip (6), figure 4.
  • a tooth (7) is formed in it. This can be formed either directly in the form or as above by a reinforcing component added to the preform.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Brushes (AREA)
  • Moulding By Coating Moulds (AREA)
  • Pens And Brushes (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
EP86906837A 1985-11-26 1986-11-26 A method of manufacturing a plastic-framed brush element Expired EP0283476B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86906837T ATE63434T1 (de) 1985-11-26 1986-11-26 Verfahren zur herstellung einer buersteneinheit mit kunststoffrahmen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI854670A FI854670A7 (fi) 1985-11-26 1985-11-26 Tapa muovirunkoisen harjaelementin valmistamiseksi.
FI854670 1985-11-26

Publications (2)

Publication Number Publication Date
EP0283476A1 EP0283476A1 (en) 1988-09-28
EP0283476B1 true EP0283476B1 (en) 1991-05-15

Family

ID=8521742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86906837A Expired EP0283476B1 (en) 1985-11-26 1986-11-26 A method of manufacturing a plastic-framed brush element

Country Status (5)

Country Link
EP (1) EP0283476B1 (da)
AU (1) AU6721087A (da)
DK (1) DK159754C (da)
FI (2) FI854670A7 (da)
WO (1) WO1987003180A1 (da)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD401254S (en) 1996-09-03 1998-11-17 Sajakorpi Oy Brush ring
FI102350B (fi) * 1996-09-03 1998-11-30 Sajakorpi Oy Harjakiekko
DK1005281T3 (da) * 1996-11-11 2002-12-02 Sajakorpi Oy Fremgangsmåde og apparat til fremstilling af en børstering
FI20021401A0 (fi) * 2002-07-23 2002-07-23 Sajakorpi Oy Menetelmä kasettiharjan valmistamiseksi ja kasettiharja
FI20031485A0 (fi) * 2003-10-13 2003-10-13 Kirkkala Oy Harjakoneen tupsumallinen harjalamelli

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2655409A (en) * 1947-07-05 1953-10-13 Columbia Protektosite Co Inc Art of and apparatus for molding brushes
US2812214A (en) * 1952-06-21 1957-11-05 Husqvarna Brostfabrik Ab Method and a device for making brush-strips
US3743557A (en) * 1969-02-06 1973-07-03 Rayette Faberge Brush and method of manufacture
US3626509A (en) * 1969-10-08 1971-12-07 James M Rones Disposable mop assembly and method of forming disposable mophead therefor
US3633974A (en) * 1970-03-18 1972-01-11 Tucel Industries Method of making tufted constructions
US4092758A (en) * 1975-08-14 1978-06-06 Newark Brush Company Cast power brush
DE2902013A1 (de) * 1978-01-24 1979-08-02 Schlegel Uk Ltd Herstellungsverfahren fuer buerstenteile
GB2055565B (en) * 1979-08-07 1983-11-09 Schlegel Uk Ltd Brush components and their manufacture

Also Published As

Publication number Publication date
WO1987003180A1 (en) 1987-06-04
FI854670A0 (fi) 1985-11-26
FI854670L (fi) 1987-05-27
AU6721087A (en) 1987-07-01
DK386587A (da) 1987-07-24
DK159754B (da) 1990-12-03
FI87977C (fi) 1993-03-25
EP0283476A1 (en) 1988-09-28
FI854670A7 (fi) 1987-05-27
FI87977B (fi) 1992-12-15
FI882427L (fi) 1988-05-24
FI882427A0 (fi) 1988-05-24
DK386587D0 (da) 1987-07-24
DK159754C (da) 1991-07-29

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