EP0269182A2 - Leichtbrauchbarer Pinsel - Google Patents

Leichtbrauchbarer Pinsel Download PDF

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Publication number
EP0269182A2
EP0269182A2 EP87202279A EP87202279A EP0269182A2 EP 0269182 A2 EP0269182 A2 EP 0269182A2 EP 87202279 A EP87202279 A EP 87202279A EP 87202279 A EP87202279 A EP 87202279A EP 0269182 A2 EP0269182 A2 EP 0269182A2
Authority
EP
European Patent Office
Prior art keywords
handle
paintbrush
bristle holder
flexible
bristles
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.)
Withdrawn
Application number
EP87202279A
Other languages
English (en)
French (fr)
Other versions
EP0269182A3 (de
Inventor
Albert Van Ommen
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.)
Akzo NV
Original Assignee
Akzo 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 Akzo NV filed Critical Akzo NV
Publication of EP0269182A2 publication Critical patent/EP0269182A2/de
Publication of EP0269182A3 publication Critical patent/EP0269182A3/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0054—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
    • A46B5/0062—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being flexible or resilient during use
    • A46B5/007—Inserts made of different material, e.g. springs, plates
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B5/00—Brush bodies; Handles integral with brushware
    • A46B5/002—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions
    • A46B5/0054—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body
    • A46B5/0062—Brush bodies; Handles integral with brushware having articulations, joints or flexible portions designed to allow relative positioning of the head to body being flexible or resilient during use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G3/00—Attaching handles to the implements
    • B25G3/38—Hinged, pivoted, swivelling, or folding joints
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/20—Brushes for applying products to surfaces in general
    • A46B2200/202—Applicator paint brush

Definitions

  • the invention relates to a paintbrush comprising a handle and a bristle holder with bristles.
  • paintbrushes have been in use for centuries, their embodiment has remained essentially unaltered. Even when in the manufacture of the handle and, optionally, the bristle holder use is made of modern materials, such as synthetic materials, the connection between the handle and the bristle holder will always be rigid, although for reasons of costs the wall thickness of these parts will be kept as thin as posible.
  • the bristles will take up such an angle to the surface to be painted as will vary with the pressure exerted by the painter with the brush on the surface to be treated. In the normal position in which the paintbrush is held in the hand, however, the angle of the brush bristles is larger than is desired, and the bristles meet with much resistance. Because of this, and especially when a relatively large brush is used and a relatively large amount of material is applied per unit of time, the painter and the painter's wrist in particular, will quickly be tired.
  • the invention has for its object to provide a paintbrush which is so light to handle that the use of the paintbrush will be less tiring and moreover thicker coatings of paint can be applied.
  • the paintbrush according to the invention is characterized in that between the handle and the bristle holder there is provided a connection which is flexible in two or more directions.
  • the flexible connection causes the angle of the bristles to the surface to be painted to become smaller than will be the case when using a conven­tional paintbrush with the same bristle length by which the same force is exerted. Also, when using the paintbrush according to the invention the maximum angle between the handle and the normal to the surface to be painted as well as the maximum angle between the surface to be painted and the part of the hand between the fingers and the wrist will be much smaller than when a conventional paintbrush is used. Finally, it has been found that when brushes are moved horizontally across a paint coated substrate of for instance steel, the transverse force exerted on a conventional paintbrush will be up to 23% higher than when a paintbrush according to the invention is used in an otherwise identical embodiment. As a result, the painter will become far less tired.
  • the present paintbrush permits applying even lightly brushable kinds of paints, such as water-dilutable paints, in a thicker layer than with a conventional paintbrush.
  • US-A 4 488 328 a toothbrush is disclosed of which the brush head is capable of limited pivotal movement about an axis transverse to the handle, in order to obtain maximum contact with the teeth for the brush bristles.
  • US-A 4 575 894 also discloses a toothbrush for brushing teeth according to a medically recommended technique, with which brush the teeth and gums may be cleaned thoroughly and also plaque may be removed. To this end a tooth­brush is described which between the bristle holder and the remainder of the toothbrush has a resilient part which resists rotation of the bristle holder due to the forces exerted on the bristle holder with bristles during brushing.
  • the handle of the paintbrush may be made of any conventional material, usually wood or plastic (including elastomers), and have different cross-­sections, for instance round, flat, or oval.
  • the bristle holder may be made of any suitable material, e.g. metal or some other material, for instance on the basis of a thermosetting or thermo­plastic synthetic material.
  • the bundle of bristles as a rule, may be rectangular, square, round, oval or have some other cross-sectional shape.
  • the length of the bristles outside the bristle holder usually is 1-10 cm and preferably 2-8 cm.
  • the material of the bristles may also be of any conventional kind, such as animal hair, e.g. pig's bristles or horsehair, or a synthetic material, e.g. polyester or polyamide, and in the form of capillaries, if so desired.
  • the flexible connection between the handle and the bristle holder may be formed by a hinged element in combination with leaf springs on either side of at least part of the bristle holder, which leaf springs are fixedly connected to the handle.
  • leaf springs on either side of at least part of the handle, which leaf springs are fixedly connected to the bristle holder.
  • the strength of the leaf springs may be selected in accordance with the desired degree of resilience of the flexible connection.
  • the leaf springs may be made of any conventional material.
  • a preferred embodiment of the flexible connection consists in that the side of the bristle holder away from the bristles is embedded in or secured to a rubber-like material of the desired elasticity, which material may or may not also be connected directly to the handle.
  • the rubber-like material is usually in the form of a block of a virtually rectangular cross-section, and it preferably possesses a Shore A hardness in the range of 10-80, more particularly of 20-70.
  • the rubber-like material contains an elastomer which is resistant to organic solvents, for instance a fluorocarbon elastomer, a polyurethane, a polychloroprene or a polyisoprene, which may also contain the conventional additives.
  • the rubber-like material and the handle may be connected to each other in any suitable manner; for instance the rubber-like material may be provided with a cavity which contains the end of the handle, and which connection may be locked if so desired, for instance by means of a bolt and a screw.
  • a preferred embodiment of the connection between the rubber-like material and the handle is formed by a non-flexible metal plate, one end of which is embedded in the rubber-like material and the other is held in the handle.
  • a different embodiment of the connection between the rubber-like material and the handle consists of a clamp which is fixedly connected to the handle and grips the rubber-like material.
  • a further, simple embodiment of the flexible connection between the handle and the bristle holder is formed by a flexible plate or strip.
  • This may be made of any suitable material, for instance a metal or a plastic.
  • An advantage of such constructions is that the bristle holder with bristles is easily exchangeable. If so desired, a flexible connection may be provided between the bristle holder and the handle in two or more places.
  • the most preferred embodiment of the paintbrush according to the invention is one in which the transition piece between the bristle holder and the handle is flexible in all directions, for instance because at least part of the bottom of the bristle holder can be chosen sufficiently thin and the material chosen for it is an elastic polymer. In this way a flexible hinge is formed between the bristle holder and the handle.
  • polyester elastomers such as copolyetheresters based on polybutylene terephthalate and polyalkylene oxide glycols such as polytetrahydrofuran and ethylene oxide-blocked polypropylene oxide glycols; polyester esterurethanes based on polybutylene terephthalate on the one hand and polycaprolacton and/or polybutylene adipate on the other, which parts are joined by ester and/or urethane bonds; and polyetherester amides.
  • polyester elastomers such as copolyetheresters based on polybutylene terephthalate and polyalkylene oxide glycols such as polytetrahydrofuran and ethylene oxide-blocked polypropylene oxide glycols
  • polyester esterurethanes based on polybutylene terephthalate on the one hand and polycaprolacton and/or polybutylene adipate on the other, which parts are joined by ester and/or urethane bonds
  • the polybutylene terephthalate part in the elastomers referred to above may optionally contain up to preferably 20 wt.% of polybutylene isophthalate.
  • Said polyester elastomers are commercially available among others from Akzo Plastics under the trademark Arnitel.
  • the above-envisaged elastomers generally have a Shore D hardness of 30-100 and preferably of 50-90.
  • Use may with advantage be made of a copolyetherester composed of 80-92 wt.% of polybutylene terephthalate and 8-20 wt.% of polytetrahydrofuran terephthalate.
  • An essential advantage of these elastomers consists in that they may be processed by injection moulding.
  • polyester elastomers available can be chosen from a wide range of flexibility moduli, so that in the same mould paintbrushes of different flexibility may be manufactured.
  • the envisaged embodiment permits manufacturing the handle integral with the bristle holder, but it is also possible for the handle to be attached to the bristle holder by means of, say, a screwed connection or a snap connection.
  • the edge of the bristle holder may be shaped in a conventional way, for instance so that the bundle of bristles attached to the bristle holder in exchangeable.
  • Advantages to the above-envisaged embodiment are that the pivot of the flexible synthetic hinge is at the shortest possible distance from the bristle holder, the hinge is light­weight and forms a closed unit which is very easy to clean, and the stroke of the hinge is limited.
  • the synthetic hinge should be flexible to such an extent that when the bristle holder is clamped, a force of 20 N per­pendicular to the handle applied at a distance of 20 mm from the hinge will bring about a displacement f (in mm) of the handle of at least , with d representing the smallest diameter (in mm) of the handle in the plane of the hinge.
  • the paintbrush according to the invention is especially suited to be used for spreading brushable materials such as paint (including varnish, lacquer, and stain), bitumen, coal tar, carbolineum, glue, filler, and other materials.
  • paint including varnish, lacquer, and stain
  • bitumen bitumen
  • coal tar tar
  • carbolineum glue
  • filler filler
  • the invention also relates to a process for applying paint to a substrate using a paintbrush according to the invention.
  • the invention also relates to the painted substrate thus produced.
  • Figure 1 shows a paintbrush comprising a handle 1 and a bristle holder 2 with bristles 3.
  • a non-flexible steel plate 4 is fixedly connected to the handle 1 at one end and embedded in a block of rubber-like material 5 at the other.
  • the material 5 is surrounded by and fixedly connected to a cap 6 which, in its turn, is fixedly connected to the bristle holder 2.
  • Fig. 3 shows a paintbrush in which the material to be brushed may be fed to the bristles 3 through a line 9 and a flexible line 10 and also through a hollow space (not shown) within the bristle holder 2.
  • the transitions of the lines 9 and 10 and of the line 10 to the hollow space 2, respectively, are formed by two connectors 11 and by a coupling nut 12.
  • the two blocks of rubber-like material 13 are fixedly connected to the handle 1 by means of fastening elements 14 and to the bristle holder 2 via a connecting piece 15.
  • a flexible connection 16 between the handle 1 and the bristle holder 2, with a thin wall thickness (0,8 mm) is shown here in its simplest and essential embodiment, viz. as a flexible diaphragm hinge made of a polyester elastomer.
  • the shortened part of the handle 1 may of course be given the desired length, or be fitted with for instance a snap connection or a screwed connection to link it to the additional part of the handle, which may optionally be made of a different material.
  • the bristle holder 2 may be provided in a known manner with a bundle of bristles which may be exchangeable or not (not shown here). It is possible, of course, for paintbrushes according to the invention to be provided with the bristle holder according to Fig. 4 having larger or smaller dimensions, for instance with a bristle holder which is about 10-20% smaller.
  • Example 1 using the small round brush was repeated, except that use was made of a paintbrush with the flexible diaphragm hinge according to Fig. 4 made of a copolyetherester composed of 88,7 wt.% of polybutylene terephthalate and 12,3 wt.% of polytetrahydrofuran terephthalate having a Shore D hardness of 74 (commercially available from Akzo Plastics under the trademark Arnitel 74 D).
  • the results obtained with this paintbrush, as well as with a similar conventional paintbrush of identical weight but without the flexible diaphragm hinge are given in Table 3.
EP87202279A 1986-11-28 1987-11-20 Leichtbrauchbarer Pinsel Withdrawn EP0269182A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8603038 1986-11-28
NL8603038 1986-11-28

Publications (2)

Publication Number Publication Date
EP0269182A2 true EP0269182A2 (de) 1988-06-01
EP0269182A3 EP0269182A3 (de) 1989-07-19

Family

ID=19848912

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87202279A Withdrawn EP0269182A3 (de) 1986-11-28 1987-11-20 Leichtbrauchbarer Pinsel

Country Status (4)

Country Link
EP (1) EP0269182A3 (de)
JP (1) JPS63143007A (de)
DE (1) DE8715693U1 (de)
FR (1) FR2607410A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2286114A (en) * 1994-01-27 1995-08-09 Kevin Hood Paint brush having a flexible stem
GB2338648A (en) * 1998-06-25 1999-12-29 Sophia Basi Cleaning device with resilient head mounting

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3077227B1 (fr) * 2018-02-01 2020-12-25 Denis Chorches <p>liaison souple pour outil</p>

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE482051C (de) * 1929-09-09 Josef Gand Heizkoerper-Flachpinsel mit auswechselbarer und schwenkbarer Pinselquaste
DE2739694A1 (de) * 1977-09-02 1979-03-08 Hans Eugen Ihne Geraet zum auftragen von haarbehandlungsmittel
NL7805050A (en) * 1978-05-10 1979-11-13 Wessel Hans Rotary brush for cleaning ship hull - has elastic U=section sleeve with beaded and grooved edges for hinging in all directions
US4488328A (en) * 1983-01-24 1984-12-18 Hyman Richard M Floating head toothbrush
US4575894A (en) * 1984-11-02 1986-03-18 Joy Stevens Vertical action tooth brush

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE482051C (de) * 1929-09-09 Josef Gand Heizkoerper-Flachpinsel mit auswechselbarer und schwenkbarer Pinselquaste
DE2739694A1 (de) * 1977-09-02 1979-03-08 Hans Eugen Ihne Geraet zum auftragen von haarbehandlungsmittel
NL7805050A (en) * 1978-05-10 1979-11-13 Wessel Hans Rotary brush for cleaning ship hull - has elastic U=section sleeve with beaded and grooved edges for hinging in all directions
US4488328A (en) * 1983-01-24 1984-12-18 Hyman Richard M Floating head toothbrush
US4575894A (en) * 1984-11-02 1986-03-18 Joy Stevens Vertical action tooth brush

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2286114A (en) * 1994-01-27 1995-08-09 Kevin Hood Paint brush having a flexible stem
GB2338648A (en) * 1998-06-25 1999-12-29 Sophia Basi Cleaning device with resilient head mounting

Also Published As

Publication number Publication date
DE8715693U1 (de) 1988-02-18
FR2607410A1 (fr) 1988-06-03
JPS63143007A (ja) 1988-06-15
EP0269182A3 (de) 1989-07-19

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