EP0830903A2 - Antragsgerät für ein Lacksystem - Google Patents

Antragsgerät für ein Lacksystem Download PDF

Info

Publication number
EP0830903A2
EP0830903A2 EP97306741A EP97306741A EP0830903A2 EP 0830903 A2 EP0830903 A2 EP 0830903A2 EP 97306741 A EP97306741 A EP 97306741A EP 97306741 A EP97306741 A EP 97306741A EP 0830903 A2 EP0830903 A2 EP 0830903A2
Authority
EP
European Patent Office
Prior art keywords
roller
paint
cover
input
applicator
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Withdrawn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
EP97306741A
Other languages
English (en)
French (fr)
Other versions
EP0830903A3 (de
Inventor
Nicholas Ian Mounteney
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.)
Black and Decker Inc
Original Assignee
Black and Decker Inc
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 Black and Decker Inc filed Critical Black and Decker Inc
Publication of EP0830903A2 publication Critical patent/EP0830903A2/de
Publication of EP0830903A3 publication Critical patent/EP0830903A3/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/02—Rollers ; Hand tools comprising coating rollers or coating endless belts
    • B05C17/03—Rollers ; Hand tools comprising coating rollers or coating endless belts with feed system for supplying material from an external source or with a reservoir or container for liquid or other fluent material located in or on the hand tool outside the coating roller
    • B05C17/035—Rollers ; Hand tools comprising coating rollers or coating endless belts with feed system for supplying material from an external source or with a reservoir or container for liquid or other fluent material located in or on the hand tool outside the coating roller direct or indirectly to the outer surface of the coating roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/02—Rollers ; Hand tools comprising coating rollers or coating endless belts
    • B05C17/03—Rollers ; Hand tools comprising coating rollers or coating endless belts with feed system for supplying material from an external source or with a reservoir or container for liquid or other fluent material located in or on the hand tool outside the coating roller
    • B05C17/0316—Rollers ; Hand tools comprising coating rollers or coating endless belts with feed system for supplying material from an external source or with a reservoir or container for liquid or other fluent material located in or on the hand tool outside the coating roller with pressurised or compressible container

Definitions

  • This invention relates to an applicator for a paint system of the type broadly disclosed in GB 2142386.
  • a machine which contains a bellows, or other pressurising means, arranged to squeeze a bag of paint and force the paint to exit the bag through a tube to a paint applicator, such as a brush or roller.
  • the roller comprises a handle, a link connecting the handle to a shaft on which is rotatably mounted a roller arrangement comprising a circular cylindrical sleeve on which is formed a paint applying surface.
  • a paint applying surface usually a flock material of some description, whether natural wool or artificial, but it may also be of sponge material, or even some form of cloth. Indeed, it is increasingly the case that various different surface materials are used in order to achieve different and distinctive surface finishes. But all of them require the use of a paint tray into which a volume of the chosen paint is poured and the roller is first saturated in the paint before being applied, and rolled over, the surface desired to be painted (hereinafter called, for the sake of convenience, "the wall").
  • Such machines have inherent problems of paint wastage, however. They all involve some form of pump having a pressure side and a supply side. Once the supply side of the pump is exhausted of paint, usually the pressure side can no longer be employed. If the volume of paint on that side is large, particularly in comparison with the total volume of paint used, then the amount of wasted paint questions the whole value of the system. Consequently, it is desirable to reduce that volume to a minimum.
  • One such source of pressure side volume is in the roller.
  • One known arrangement provides the paint supply tube connected to the handle, the link and shaft being hollow and forming a conduit for the paint to the interior of the cylindrical sleeve of the roller. The sleeve has perforations which permit the paint to seep through and wet the flock coating.
  • CH-A-480198 and EP-A-0073522 all disclose potential arrangements.
  • the latter describes a system where paint is fed to a feed roller which rolls against the application roller and supplies it with paint.
  • the position of the application roller appears to be adjustable to cater for different diameter application rollers.
  • CH-A-480198 describes a system where paint is sprayed onto the outside surface of the roller
  • DE-A-3308829 describes a system in which a plenum is defined by the roller support which has edges abutting the roller, paint being supplied to the plenum.
  • a paint applicator for a paint system wherein the applicator comprises:-
  • said biassing comprises a spring between said body and cover, ideally a pair of leaf springs mounted in the body one on either side of said input.
  • the roller preferably comprises a sleeve mounted on a carrier journalled in the body, the sleeve having coating material thereon, and wherein the radius of curvature of the lips lying against arcs of the circumference of the roller is larger than the radius of the sleeve and smaller than the radius of the coating material.
  • the capacity for movement of the cover is preferably at least as much as the thickness of the coating material.
  • the cover may be closed above the plenum by a baffle to form a chamber in the cover, a window being formed in the baffle permitting entry of paint under pressure in the chamber into the plenum.
  • Two such windows are preferably provided in the baffle, one on either side of said input and wherein the width of the windows increase with distance from said input.
  • the paint supply input to the body passes centrally through the body and the cover is slidably mounted in said input, the input being radially arranged with respect to said axis.
  • the cover may be slidable within the body radially with respect to said axis, an opening in the cover being connected to said input by a resilient material bellows tube.
  • FIG. 1 a paint application machine 10 which comprises a hollow container 12, having a back 18 and a closing handle 16.
  • the container includes a bellows (not shown) pressurised with fluid by a pump unit (also not shown).
  • a paint bag 24 contains paint and is inserted in the container 12 next to the bellows.
  • the bellows squeezes the bag 24 and paint therein is forced through an opening 40 to which a connector 50 has been attached.
  • the connector 50 is at one end of a flexible tube 60 which leads to a handle arrangement 70, having a flow control button 72.
  • a paint applicator 80 is connectible to the handle 70.
  • the tube 60 is protected by a flexible portion 160 of the connector as it exits the container 12 and connector 50.
  • the tube 60 at its end remote from the connector 50 is connected by a screwed adaptor to an input element 210 of handle 70.
  • handle 70 has an output 220 having a sleeve element 222 with a circumferential groove to receive an elastomeric O-ring 223.
  • Output 220 has a tapering mouth 224 to receive correspondingly tapering input 250 to applicator 80 (see Figure 4).
  • the O-ring 223 is adapted to seal against circular cylindrical surface 252 of input 250.
  • handle 70 Between its input and output, handle 70 comprises a body 230 including a resiliently elastic tube element 232. Tube element 232 passes over an anvil 234 formed in the body. Above the anvil and tube element is the head 236 of a squeeze lever 238, which head is pressed against anvil 234, squeezing and sealing the tube element 232 therebetween, by a spring 240, mounted in the body 230. Squeeze lever 238 is pivoted in the body about axis 242, and its other end 244 is actuated by switch lever 246, also pivoted in the body about axis 248. Switch lever 246 has knob 72 which extends through an opening 214 in the body 230, and which knob is actuable by the user.
  • the handle is therefore a deadman's handle, the spring 240 serving to close flow of paint in the tube element 232 and through the handle 70 until the knob 72 is pressed by the user. Pressing the knob 72 pivots the switch lever, clockwise in Figure 3, about axis 248, which in turn pivots squeeze lever 238 anti-clockwise about axis 242. Such pivoting is against the restoring force of spring 240, but opens tube element 232 to permit flow of paint while the knob is pressed.
  • the lever arrangement is such that only a small movement of head 236 results from a large movement of the knob 72. This is desirable on two counts. Firstly the spring 240 needs to be quite strong to ensure adequate sealing under the working pressure when the knob 72 is released, so the extra leverage provided by the arrangement minimises user fatigue.
  • the small movement of the head 236 for a large movement of the knob 72 means that an intermediate position of the knob can be found to achieve a flow rate somewhere between nothing and maximum which satisfies the ongoing paint loading requirement as the system is used.
  • applicator 80 comprises a roller arrangement having a body 82 mounting a flossed roller 84 which is journalled for free rotation about its long axis 86 in the body 82.
  • the roller 84 has pips 88 at its ends which rotate in eyes 89 in body 82.
  • the roller 84 comprises a sleeve 270 on which flock 272 is attached.
  • the sleeve 270 is slid over a carrier 274 which comprises two boat-like mouldings 276,278 connected together edge to edge to form the carrier 274.
  • the space within the carrier 274 is sealed so that paint cannot enter it.
  • the carrier has longitudinal ribs 282 spaced around its circumference.
  • a cover 87 has a central sleeve 85 which is a close sliding fit in a bore 83 formed in the body 82 and communicating with input 252.
  • the cover is substantially rectangular having a rectangular lip 254 (having curved short ends to correspond with the circumference of the roller 84) adapted to lie against the roller surface.
  • the lip 254, the cover inside the lip, and the surface of the roller bounded by the lip, between them define a paint plenum 256 into which paint is supplied from handle 70 when it is connected to applicator 80.
  • the cover 87 is biased towards the roller by two leaf springs 258 disposed in the body 82.
  • the facing surfaces 83,85 permit the cover to slide in and out slightly to maintain contact of the lip 254 with the roller as it changes diameter with wear or degree of paint loading.
  • rollers 84 having different flock lengths can be employed, for achieving different surface finishes, or even having different surfaces such as wool, cloth or sponge, or indeed just about any presently available material used for applying paint to walls.
  • the radius of curvature of the lip 254, where it lies over an arc of the circumference of the roller 84 is arranged to be as small as the diameter of the roller is likely to be.
  • the radius should be slightly larger than the radius of sleeve 270, because larger diameter rollers are larger because of the thickness of the pile 272 of the roller, rather than because of the diameter of their base sleeve 270.
  • the edge 254 can more easily dig into the pile to form a seal between lip and roller, although this is not a notably important important point, since paint is wanted to flow to the outsides of the roller in any event.
  • the cover is constructed from thin (about 0.3mm thick) flexible plastics material such as high impact polystyrene, so that it adapts easily to the shape of the roller.
  • the cover has two waves 260 outside the long sides of the lip 254. These are adapted to capture paint on the surface of the roller as the roller feeds under the leading lip 254, depending on the direction of roll of the roller, and to feed such paint back into the plenum 256. Preferably there is no leak permitted at the connection between the body input 83 and the plenum 256. In this event, the embodiment described below with reference to Figures 6 to 10 is preferred. Like components have the same reference numerals, but with the addition of a prime where there are differences in construction.
  • body 82' of applicator 80' has a short sleeve 83' on which a resilient bellows tube 290 is connected.
  • the other end of the bellows 290 is engaged over sleeve 85' of the cover 87'.
  • This arrangement permits movement of the cover relative to the body without leakage. However, different guidance for the cover is then required.
  • baffle 296 which is elongate and closes a chamber 298 in the cover above the plenum 256.
  • the baffle is clipped into the cover by pips 300 on the cover snapping into engagement with corresponding detents 302 in the baffle 296.
  • Ribs 304 in the cover locate the baffle.
  • the baffle 296 has two elongate windows 306 which widen away from the opening of sleeve 85'. These windows permit entry of paint under pressure in the chamber 298 into the plenum 256.
  • the windows 306 have a narrow width, but as the pressure drops further way from the sleeve 85', the window width increases to permit greater flow. The result is an even distribution of paint into the plenum 256 along its length.
  • ribs 308 are formed against which the leaf springs 258 bear.
  • three positions of the leaf spring are shown, first (i) under maximum compression where the widest diameter roller 84 is employed, second (ii) under minimum compression where the narrowest diameter roller is employed, and third (iii) under no compression.
  • Figure 6 shows the two possible diameters 84a and 84b of roller 84 corresponding to maximum (i) and minimum (ii) compressions of the springs 258.
  • the present invention is of simple construction and yet provides for efficient distribution of paint to the surface of the roller, whatever diameter (within limits) the roller has.
  • paint is used exclusively herein, it should be understood to include any liquid, which in this context includes other surface coating compositions such as varnishes, stains and lacquers. Moreover, while the paint system described employs a bellows arrangement, any paint delivery system could be employed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
EP97306741A 1996-09-07 1997-09-02 Antragsgerät für ein Lacksystem Withdrawn EP0830903A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9618721 1996-09-07
GB9618721A GB2309183B (en) 1996-09-07 1996-09-07 Paint system applicator

Publications (2)

Publication Number Publication Date
EP0830903A2 true EP0830903A2 (de) 1998-03-25
EP0830903A3 EP0830903A3 (de) 1998-10-21

Family

ID=10799594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97306741A Withdrawn EP0830903A3 (de) 1996-09-07 1997-09-02 Antragsgerät für ein Lacksystem

Country Status (2)

Country Link
EP (1) EP0830903A3 (de)
GB (1) GB2309183B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9475084B2 (en) 2014-12-03 2016-10-25 Nirlat Ltd Painting apparatus comprising an air bag

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0212614D0 (en) * 2002-05-31 2002-07-10 Fisher Martin Applicator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH480198A (de) 1967-11-30 1969-10-31 Technovalor Auftraggerät für Flüssigkeiten, insbesondere Farben
EP0073522A2 (de) 1981-09-02 1983-03-09 Thuma, geb. Kraus, Marianne Farbwalzgerät
DE3308829A1 (de) 1983-03-12 1984-09-20 Rütgerswerke AG, 6000 Frankfurt Vorrichtung zum auftragen von fluessigkeiten
GB2142386A (en) 1983-06-27 1985-01-16 Kr Ass Inc Force driven fluid coating applicator for paint and the like

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2654107A (en) * 1949-04-05 1953-10-06 Leonard C Davey Paint applying roller
US2898618A (en) * 1957-05-02 1959-08-11 Whitfield William Allen Paint applying means
US3193868A (en) * 1962-08-14 1965-07-13 Irwin B Cassidy Continuous feed paint roller
US3196479A (en) * 1963-09-25 1965-07-27 Paul E Romoser Liquid applicator
US4222678A (en) * 1978-06-15 1980-09-16 Miller Donald W Pressure fed roller type fluid applicator
US4981384A (en) * 1984-09-27 1991-01-01 Taiyo, Ltd. Applicator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH480198A (de) 1967-11-30 1969-10-31 Technovalor Auftraggerät für Flüssigkeiten, insbesondere Farben
EP0073522A2 (de) 1981-09-02 1983-03-09 Thuma, geb. Kraus, Marianne Farbwalzgerät
DE3308829A1 (de) 1983-03-12 1984-09-20 Rütgerswerke AG, 6000 Frankfurt Vorrichtung zum auftragen von fluessigkeiten
GB2142386A (en) 1983-06-27 1985-01-16 Kr Ass Inc Force driven fluid coating applicator for paint and the like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9475084B2 (en) 2014-12-03 2016-10-25 Nirlat Ltd Painting apparatus comprising an air bag

Also Published As

Publication number Publication date
GB2309183B (en) 1997-12-10
GB9618721D0 (en) 1996-10-16
GB2309183A (en) 1997-07-23
EP0830903A3 (de) 1998-10-21

Similar Documents

Publication Publication Date Title
EP0224472B1 (de) Stiel für eine Auftragsvorrichtung
US4732503A (en) Reservoir fluid dispenser with control valve
US3776645A (en) Pressurized continuous flow liquid applicator with shut-off valve
US3640630A (en) Pressurized continuous flow liquid applicator with shutoff valve
US5749498A (en) Applicator and spreader tool for adhesives
CA1330204C (en) Self-contained power painting system
US3304573A (en) Liquid coating equipment
US5863146A (en) Apparatus for applying joint compound
US4810123A (en) Fountain applicator handle with specific check valve
LT4299B (lt) Dažų išdavimo sistema
EP0284166A2 (de) Bürste
CA2493708C (en) Applicator
US20020028103A1 (en) Paint applicator
US5453152A (en) Wallpaper applicator apparatus
US3539268A (en) Apparatus for covering a surface with coating material
CN1368860A (zh) 用于光滑表面,特别是用来擦窗户的清洗器械
EP0862502B1 (de) Mit schwenkbaren farbrollern versehene sprühauftragsvorrichtung
US6726385B1 (en) Lotion application device
US5403432A (en) Suspendible wallpaper applicator
US3134130A (en) Pressure fed liquid applicator
EP0830903A2 (de) Antragsgerät für ein Lacksystem
US3196479A (en) Liquid applicator
US3030652A (en) Paint applying means
US6457893B1 (en) Personal hygiene device for moistening tissue
US3918820A (en) Paint applicator

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): GB

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

17P Request for examination filed

Effective date: 19981123

AKX Designation fees paid

Free format text: BE

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

RBV Designated contracting states (corrected)

Designated state(s): GB

17Q First examination report despatched

Effective date: 20000824

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20001228