EP0384695B1 - Masking member - Google Patents
Masking member Download PDFInfo
- Publication number
- EP0384695B1 EP0384695B1 EP90301790A EP90301790A EP0384695B1 EP 0384695 B1 EP0384695 B1 EP 0384695B1 EP 90301790 A EP90301790 A EP 90301790A EP 90301790 A EP90301790 A EP 90301790A EP 0384695 B1 EP0384695 B1 EP 0384695B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- masking member
- sheet
- bumper
- masking
- member 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.)
- Expired - Lifetime
Links
- 230000000873 masking effect Effects 0.000 title claims description 139
- 238000004381 surface treatment Methods 0.000 claims description 17
- 239000012790 adhesive layer Substances 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 10
- 229920001971 elastomer Polymers 0.000 claims description 8
- 239000005060 rubber Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- 239000011256 inorganic filler Substances 0.000 claims description 6
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 6
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 238000007666 vacuum forming Methods 0.000 claims description 2
- 238000007373 indentation Methods 0.000 claims 1
- 239000003973 paint Substances 0.000 description 18
- 239000011248 coating agent Substances 0.000 description 11
- 238000000576 coating method Methods 0.000 description 11
- 239000002390 adhesive tape Substances 0.000 description 10
- -1 polyethylene Polymers 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 229920006327 polystyrene foam Polymers 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 240000007049 Juglans regia Species 0.000 description 1
- 235000009496 Juglans regia Nutrition 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 235000020234 walnut Nutrition 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
- B05B12/20—Masking elements, i.e. elements defining uncoated areas on an object to be coated
Definitions
- the present invention relates to a masking member which protects a part of a surface of an article from a surface treatment such as coating, plating, vacuum evaporation, phosphatizing, and the like. More particularly, the present invention relates to a masking member consisting of a sheet having bellows part(s) in selected position(s) of said sheet.
- a surface treatment is effected on the surface of an article, and if said surface of said article has (a) part(s) on which said surface treatment should not be effected for the reason that another surface treatment is effected on said part(s) after said surface treatment of said surface treatment spoils the appearance of said article and so on, said part(s) of said surface of said article may be covered and protected with said masking member.
- adhesive tape has been used as a masking member to protect a part of a surface of an article such as a bumper of an automobile and the like. Namely, the adhesive tape is attached to said part of said surface to protect said surface from said surface treatment and after said surface treatment, said adhesive tape is removed from said surface. Said surface may not be affected by said surface treatment since said part of said surface was covered with said adhesive tape during said surface treatment. Nevertheless, adhesive tape as a masking member has faults in that attaching and removing of the adhesive tape to/from said part of said surface take time and have a high labor cost, and further, the adhesive tape attached to said part of said surface is buried in the layer of said surface treatment and it is very difficult to find the end of said buried adhesive tape to remove said adhesive tape. Said faults of adhesive tape may seriously obstruct a mass-production line such as a coating line for automobiles.
- a reusable paint masking member exhibiting both vertical and horizontal expensibility, is known from US-A-4,759,959.
- an object of the present invention is to save trouble when the masking member is attached/removed to/from a part to be protected.
- a masking member consisting of a sheet having bellows part(s) in selected position(s) of said sheet.
- the invention also provides a method of surface treatment of an article wherein a part of the surface of the article is covered with such a masking, the surface treatment is performed and the masking member is removed.
- FIG. 1 to FIG. 6 relate to a first embodiment of the present invention.
- FIG. 1 is a perspective view of the masking member of the first embodiment.
- FIG. 2 is a front view showing a use mode of the masking member of the first embodiment.
- FIG. 3 is a front view after coating in said use mode.
- FIG. 4 is a perspective view showing another use mode of the masking member of the first embodiment.
- FIG. 5 is a perspective view showing still another use mode of the masking member of the first embodiment.
- FIG. 6 is a perspective view after coating and removing the masking member in said use mode.
- FIG. 7 to FIG. 9 relate to a second embodiment of the present invention.
- FIG. 7 is a perspective view of the masking member of the second embodiment.
- FIG. 8 is a perspective view of a front part of an automobile.
- FIG. 9 is a perspective view of said front part of said automobile protected by the masking member of the second embodiment.
- FIG. 10 to FIG. 13 relate to a third embodiment of the present invention.
- FIG. 10 is a perspective view of the masking member of the third embodiment.
- FIG. 11 is a perspective view of a bumper of an automobile.
- FIG. 12 is a perspective view of a front part of an automobile protected by the masking member of the third embodiment.
- FIG. 13 is a cross sectional view of the bumper protected by the masking member of the third embodiment.
- FIG. 14 to FIG. 18 relate to a fourth embodiment of the present invention.
- FIG. 14 is a perspective view of the masking member of the fourth embodiment.
- FIG. 15 is a cross sectional view of a clip part of the masking member of the fourth embodiment.
- FIG. 16 is a perspective view of a front part of an automobile.
- FIG. 17 is a perspective view of said front part of said automobile protected by the masking member of the fourth embodiment.
- FIG. 18 is a cross sectional view of said clip part of said masking member of the fourth embodiment clipping a piller of a bumper.
- FIG. 19 to FIG. 21 relate to a fifth embodiment of the present invention.
- FIG. 19 is a perspective view of a bumper.
- FIG. 20 is a perspective view of the masking member of the fifth embodiment.
- FIG. 21 is a cross sectional view of said bumper protected by said masking member of the fifth embodiment.
- FIG. 22 to FIG. 25 relate to a sixth embodiment of the present embodiment.
- FIG. 22 is a cross sectional view of the masking member of the sixth embodiment.
- FIG. 23 is a partial perspective view of both end parts of the masking member of the sixth embodiment.
- FIG. 24 is a cross sectional view of a pillar protected by the masking member of the sixth embodiment.
- FIG. 25 A is a partial front view of said pillar after coating
- FIG. 25 B is a partial front view of said pillar after removing the masking member.
- the masking member of the present invention is made of a sheet such as from plastics or rubber such as polystyrene, polyethylene, polypropylene, ethylene-proplylene copolymer, polyvinylchloride, polyvinylidene chloride, polymethacrylate, styrene-butadiene copolymer, acrylonitrile-butadiene copolymer, polybutadine polyisoprene, polyisobutylene, polychloroprene, isoprene-isobutylene copolymer, natural rubber, polyurethane, melamine resin, urea resin, phenolresin, epoxyresin and the like; foams of said plastics; or said rubber; fiber sheet such as fabricrubber, knitting, non-woven fabric, paper, corrugated carboard and the like; thermoplastic resin - impregnated fiber sheet; thermosetting resin -impregnated fiber sheet; wooden sheet such as wood board, hardboard, plywood and the like;
- said masking member is made of a sheet from plastics or rubber
- inorganic filler such as calcium carbonate, silica, talc, clay, bentonite, stone powder, blast furnace slag, flyash, and the like
- heat resistance, mechanical properties and the like of said masking member are improved by said inorganic filler and further, when a used masking member is burnt in a combustion furnace, a smaller combustion energy is produced so that said combustion furnace will stand long use.
- 10 to 500 weight parts, desirably 20 to 400 weight parts of said inorganic filler are mixed into said plastics.
- organic filler such as wood powder, organic, fiber powder, walnut powder, coconut powder, flour, chaff powder and the like may be mixed into said plastics or rubber. Still further, dyestuff, pigment, antioxidant, ultraviolet absorber plasticizer and the like may be mixed into said plastics or rubber.
- Polyolefin such as polyethylene, polypropylene and the like are desirable plastics for the material of the sheet of the masking member of the present invention since said polyolefin has high solvent resistance and is inexpensive, and of course, polyolefin in which said inorganic filler is mixed is a desirable material for said masking member.
- Polystyrene foam is also a desirable material for said masking member since said polystyrene foam is light and inexpensive, nevertheless, since said polystyrene foam has a low solvent resistance and a low heat resistance, it is desirable to laminate a suitable plastic or rubber onto said polystyrene foam.
- Vacuum forming, press molding, casting, extrusion, injection, molding, paper making and the like may be used to produce the masking member of the present invention.
- the masking member of the present invention does not deform to maintain the shape corresponding with the part of the surface of the article to be protected from surface treatment during the storage, the transportation, handling, and the like, since the masking member is reinforced by said reinforcing rib(s). Therefore the masking member of the present invention can protect completely the part to be protected.
- Said masking member consisting of a sheet having bellows part(s) in selected position(s) of said sheet, and said bellows part(s) of said masking member of the present invention can be bent both horizontally and perpendicularly, and further said bellows part(s) can be lengthened.
- said masking member of the present invention can be applied to various curved surfaces and surfaces having various length.
- Fig. 1 to Fig. 6 relate to a first embodiment of the present invention.
- a masking member (110) consists of a sheet (111) having a pair of bellows parts (112), (112) in the both end parts of said sheet (111). Further adhesive layers (113), (113) are formed on the upper edge and the lower edge of the back-side of said sheet.
- Said bellows parts (112), (112) of said masking member (110) can be bent both in YZ-directions and lengthened to X-direction as shown in fig. 1. Accordingly, said masking member (110) is lengthened to X-direction and bent in Y-direction at said bellows parts(112), (112) corresponding with a shape of a part (211) of a surface (210) and then said masking member (110) is easily attached to said part (211) by adhesive layers (113), (113) of said masking member (110). After said masking member (110) is attached said part (211), a surface treatment such as a spray-coating of a paint (400A) is effected on said surface (210) as shown in Fig. 2. After said spray-coating, said masking member (110) is removed from said part (211) and said paint (400A) is not coated on said part (211) since said part (211) has been protected during said coating.
- a surface treatment such as a spray-coating of
- Said masking member (110) is also lengthened to X-direction and bent in Y-direction at said bellows parts (112), (112) and then said masking member (110) is attached a part (211A) of a surface (210A) of an article (300A) as shown in Fig. 4.
- Fig. 5 shows that said masking member (110) is attached the lower half (211B) of a bumper (210B) of an automobile (300B).
- said bellows parts (112), (112) of said masking member (110) are lengthened to X-direction and bent both in Y and Z-directions corresponding with the shape of said lower half (211B) of said bumper (210B).
- said masking member (110) is removed from said lower half (211B) of said bumper (210B) and as shown in Fig.6, said paint (400B) is not effected on said lower half (211B) of said bumper (210B) but on the upper half (212B) of said bumper (210B).
- a masking member (121) is produced by the molding of a sheet (121) having a pair of bellows parts (122) in the both end parts of said sheet (121) and has a shape corresponding with the surface of the lower half (221) of a bumper (220) of an automobile (310) and indentions (124), (125) are formed in both ends of said masking member (120) wherein projections (224), (225) in both ends of said lower half (221) of said bumper (220) are inserted into said indentions (124), (125) of said masking member (120). Further, an adhesive layer (123) is formed on the upper edge of the inside of said masking member (120), and a reinforcing rib (126) is formed in said masking member (120).
- Said masking member (120) is correctly, easily, and securely attached on said lower half (221) of said bumper (220) by inserting said projections (224), (225) of said bumper (220) into said indentions (124), (125) of said masking member (120) and adhering said adhesive layer (122) to the upper edge of said lower half (221) of said bumper (220).
- said bellows parts (122), (122) may be bent both in Y and Z-directions and a little lengthened to X-direction corresponding with the shape of said lower half (221) of said bumper (220).
- a paint (410) is coated on said bumper (220) as shown in Fig. 9. After said coating, said masking member (120) is easily removed from said bumper (220) and said paint (410) is not coated on said lower half (221) of said bumper (220) while said paint (410) is coated on the upper half (222) of said bumper (220).
- the masking member of the second embodiment is easily attached to a part of a surface of an article to be protected by inserting (a) projection(s) of said part into (an) indention(s) of the masking member and said masking member is easily removed from said part by extracting said projection(s) of said part from said indention(s) of said masking member. Accordingly, said masking member of the present invention can be correctly, easily, and securely attached to a part of a surface by the guide of said projection(s) of said part and said indention(s) of said masking member.
- a masking member (130) is produced by the molding of a sheet (131) having a pair of bellows parts (132), (132) in the both end parts of said sheet (131) and has a shape corresponding with the surface of the lower half (231) of a bumper (230) of an automobile (320) and a bending part (135) is elongated from the lower edge of said masking member (130) and projections (134) are formed on the surface of said Dending part (135). Further, an adhesive layer (133) is formed on the upper edge of the inside of said masking member (130) and a reinforcing rib (136) is formed in said masking member (130).
- Said masking member (130) is correctly, easily, and securely attached on a lower half (231) of said bumper (230) by inserting said projections (134) of said masking member (130) into holes (234) of an inwardly bent part (235) which is elongated from the lower half (231) of said bumper (230) and adhering said adhesive layer (132) to the upper edge of said lower half (231) of said bumper (230).
- said bellows parts (132), (132) may be bent both i Y and Z-directions and a little lengthened to X-direction corresponding with the shape of said lower half (231) of said bumper (230).
- a paint (420) is coated on said bumper (230) as shown in Fig. 12.
- said masking member (120) is easily removed from said bumper (220) and said paint (420) is not coated on said lower half (221) of said bumper (220) while said paint (420) is coated on the upper half (222) of said bumper (220).
- the masking member of the third embodiment is easily attached to a part of a surface of an article to be protected by inserting (a) projection(s) of said part into (an) indention(s) of the masking member and said masking member is easily removed from said part by extracting said projection(s) of said part from said indention(s) of said masking member.
- said masking member of the present invention can be correctly, easily, and securely attached to a part of a surface by the guide of said projection(s) of said part and said indention(s) of said masking member.
- a masking member (140) is produced by the molding of a sheet (141) having a pair of bellows parts (142),(142) in the both end parts of said sheet (141) and has a shape corresponding with the surface of the lower half (241) of a bumper (240) of an automobile (340) and pinching parts (144) are formed on the inside of said masking member (140) wherein pillars (244) of air inlets (243) of said lower half (241) of said bumper (240) are inserted into said pinching parts (144) of said masking member (140).
- pillars (244) of air inlets (243) of said lower half (241) of said bumper (240) are inserted into said pinching parts (144) of said masking member (140).
- said pinching parts (144) are formed between a pair of walls (144A), (144A). Further, an adhesive layer (143) is formed on the upper edge of the inside of said masking member (130) and a reinforcing rib (145) is formed in said masking member (140).
- Said masking member (140) is correctly, easily, and securely attached on said lower half (241) of said bumper (240) by inserting said pillars (243) of said bumper (240) into said pinching parts (144) of said masking member (140) and adhering said adhesive layer (143) to the upper edge of said lower half (241) of said bumper (240).
- Said pinching parts (144) of said masking member (140) respectively pinch said pillars (243) of air inlets (244) by the elasticity thereof so that said masking member (140) is securely attached to said lower half (241) of said bumper (240).
- said bellows parts (142), (142) may be bent both in Y and Z-directions and a little lengthened to X-direction corresponding with the shape of said lower half (241) of said bumper (240).
- a paint (440) is coated on said bumper (240) as shown in Fig. 17. After said coating, said masking member (140) is easily removed from said bumper (240) and said paint (430) is not coated on said lower half (241) of said bumper (240) while said paint (430) is coated on the upper half (242) of said bumper (240).
- a masking member (150) is produced by the molding of a sheet (141) having a pair of bellows parts (152), (152) in the both end parts of said sheet (151) and has a shape corresponding with a lower half (251) of a bumper (250) of an automobile and pinching parts (155) are elongated from the lower edge of said masking member (150) wherein a bending part (255) elongated from the lower edge of said bumper (250) is inserted into said pinching parts (155) of said masking member (150). Further, an adhesive layer (152) is formed on the upper edge of the inside of said masking member (140) and a reinforcing rib (156) is formed in said masking member (150).
- Said masking member (150) is correctly, easily, and securely attached on said lower half (251) of said bumper (250) by inserting said bending part (255) of said bumper (250) and adhering said adhesive layer (152) to the upper edge of said lower half (251) of said bumper (250).
- Said pinching parts (155) of said masking member (150) respectively pinch said bending part (255) of said bumper (250) by the elasticity thereof so that said masking member (150) is securely attached to said lower half (251) of said bumper (250).
- said bellows parts (152), (152) may be bent both in Y and Z-directions and a little lengthened to X-direction corresponding with the shape of said lower half (251) of said bumper (250).
- a paint is coated said bumper (250) after said coating, said masking member (150) is easily removed from said lower half (251) of said bumper (250).
- a masking member (160) consists of sheet (161) having four bellows parts (162) at regular intervals.
- a flange part (163) is extended from one end of one side of said sheet (161) and further, a flange part (165) is extended from the other end of the other side of said sheet (161).
- Two holes (164) are formed in said flange part (163) while two projections (166) are formed on said flange part (165).
- Said masking member (161) is attached on a part (261) of a pillar (260) of a door of an automobile by bending said masking member (160) along said bellows parts (162) to surround said part (261) of said pillar (260) and said two projections (166) of said flange part (165) are respectively engaged in said holes (164) of said flange part (163) to secure said masking member (160) on the circumference of said part (261) of said pillar (260) as shown in Fig. 24.
- said pillar (260) is coated by spraying a paint (440) as shown in Fig. 25A and said part (261) of said pillar (260) which is covered with said masking member (160) is not coated with said paint (440).
- said masking member (160) is removed from said part (261) of said pillar (260) by hand, hook, and the like and said pillar (260) has said part (261) which is not coated with said paint (440) as shown in Fig. 25B.
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- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Description
- The present invention relates to a masking member which protects a part of a surface of an article from a surface treatment such as coating, plating, vacuum evaporation, phosphatizing, and the like. More particularly, the present invention relates to a masking member consisting of a sheet having bellows part(s) in selected position(s) of said sheet. When a surface treatment is effected on the surface of an article, and if said surface of said article has (a) part(s) on which said surface treatment should not be effected for the reason that another surface treatment is effected on said part(s) after said surface treatment of said surface treatment spoils the appearance of said article and so on, said part(s) of said surface of said article may be covered and protected with said masking member.
- Hitherto, adhesive tape has been used as a masking member to protect a part of a surface of an article such as a bumper of an automobile and the like. Namely, the adhesive tape is attached to said part of said surface to protect said surface from said surface treatment and after said surface treatment, said adhesive tape is removed from said surface. Said surface may not be affected by said surface treatment since said part of said surface was covered with said adhesive tape during said surface treatment. Nevertheless, adhesive tape as a masking member has faults in that attaching and removing of the adhesive tape to/from said part of said surface take time and have a high labor cost, and further, the adhesive tape attached to said part of said surface is buried in the layer of said surface treatment and it is very difficult to find the end of said buried adhesive tape to remove said adhesive tape. Said faults of adhesive tape may seriously obstruct a mass-production line such as a coating line for automobiles.
- A reusable paint masking member, exhibiting both vertical and horizontal expensibility, is known from US-A-4,759,959.
- Accordingly, an object of the present invention is to save trouble when the masking member is attached/removed to/from a part to be protected. According to the present invention, there is provided a masking member consisting of a sheet having bellows part(s) in selected position(s) of said sheet.
- The invention also provides a method of surface treatment of an article wherein a part of the surface of the article is covered with such a masking, the surface treatment is performed and the masking member is removed.
- The invention will be better understood from the following description given by way of example only with reference to the accompanying drawings in which:-
- FIG. 1 to FIG. 6 relate to a first embodiment of the present invention.
- FIG. 1 is a perspective view of the masking member of the first embodiment.
- FIG. 2 is a front view showing a use mode of the masking member of the first embodiment.
- FIG. 3 is a front view after coating in said use mode.
- FIG. 4 is a perspective view showing another use mode of the masking member of the first embodiment.
- FIG. 5 is a perspective view showing still another use mode of the masking member of the first embodiment.
- FIG. 6 is a perspective view after coating and removing the masking member in said use mode.
- FIG. 7 to FIG. 9 relate to a second embodiment of the present invention.
- FIG. 7 is a perspective view of the masking member of the second embodiment.
- FIG. 8 is a perspective view of a front part of an automobile.
- FIG. 9 is a perspective view of said front part of said automobile protected by the masking member of the second embodiment.
- FIG. 10 to FIG. 13 relate to a third embodiment of the present invention.
- FIG. 10 is a perspective view of the masking member of the third embodiment.
- FIG. 11 is a perspective view of a bumper of an automobile.
- FIG. 12 is a perspective view of a front part of an automobile protected by the masking member of the third embodiment.
- FIG. 13 is a cross sectional view of the bumper protected by the masking member of the third embodiment.
- FIG. 14 to FIG. 18 relate to a fourth embodiment of the present invention.
- FIG. 14 is a perspective view of the masking member of the fourth embodiment.
- FIG. 15 is a cross sectional view of a clip part of the masking member of the fourth embodiment.
- FIG. 16 is a perspective view of a front part of an automobile.
- FIG. 17 is a perspective view of said front part of said automobile protected by the masking member of the fourth embodiment.
- FIG. 18 is a cross sectional view of said clip part of said masking member of the fourth embodiment clipping a piller of a bumper.
- FIG. 19 to FIG. 21 relate to a fifth embodiment of the present invention.
- FIG. 19 is a perspective view of a bumper.
- FIG. 20 is a perspective view of the masking member of the fifth embodiment.
- FIG. 21 is a cross sectional view of said bumper protected by said masking member of the fifth embodiment.
- FIG. 22 to FIG. 25 relate to a sixth embodiment of the present embodiment.
- FIG. 22 is a cross sectional view of the masking member of the sixth embodiment.
- FIG. 23 is a partial perspective view of both end parts of the masking member of the sixth embodiment.
- FIG. 24 is a cross sectional view of a pillar protected by the masking member of the sixth embodiment.
- FIG. 25 A is a partial front view of said pillar after coating, and FIG. 25 B is a partial front view of said pillar after removing the masking member.
- The masking member of the present invention is made of a sheet such as from plastics or rubber such as polystyrene, polyethylene, polypropylene, ethylene-proplylene copolymer, polyvinylchloride, polyvinylidene chloride, polymethacrylate, styrene-butadiene copolymer, acrylonitrile-butadiene copolymer, polybutadine polyisoprene, polyisobutylene, polychloroprene, isoprene-isobutylene copolymer, natural rubber, polyurethane, melamine resin, urea resin, phenolresin, epoxyresin and the like; foams of said plastics; or said rubber; fiber sheet such as fabricrubber, knitting, non-woven fabric, paper, corrugated carboard and the like; thermoplastic resin - impregnated fiber sheet; thermosetting resin -impregnated fiber sheet; wooden sheet such as wood board, hardboard, plywood and the like; metal sheet and the like; laminated sheet consisting of a plural number of sheets selected from the group of said sheets. In cases where said masking member is made of a sheet from plastics or rubber, it is desirable to mix inorganic filler such as calcium carbonate, silica, talc, clay, bentonite, stone powder, blast furnace slag, flyash, and the like into said plastics or rubber since heat resistance, mechanical properties and the like of said masking member are improved by said inorganic filler and further, when a used masking member is burnt in a combustion furnace, a smaller combustion energy is produced so that said combustion furnace will stand long use. Usually, 10 to 500 weight parts, desirably 20 to 400 weight parts of said inorganic filler are mixed into said plastics. Further organic filler such as wood powder, organic, fiber powder, walnut powder, coconut powder, flour, chaff powder and the like may be mixed into said plastics or rubber. Still further, dyestuff, pigment, antioxidant, ultraviolet absorber plasticizer and the like may be mixed into said plastics or rubber. Polyolefin such as polyethylene, polypropylene and the like are desirable plastics for the material of the sheet of the masking member of the present invention since said polyolefin has high solvent resistance and is inexpensive, and of course, polyolefin in which said inorganic filler is mixed is a desirable material for said masking member. Polystyrene foam is also a desirable material for said masking member since said polystyrene foam is light and inexpensive, nevertheless, since said polystyrene foam has a low solvent resistance and a low heat resistance, it is desirable to laminate a suitable plastic or rubber onto said polystyrene foam.
- Vacuum forming, press molding, casting, extrusion, injection, molding, paper making and the like may be used to produce the masking member of the present invention. The masking member of the present invention does not deform to maintain the shape corresponding with the part of the surface of the article to be protected from surface treatment during the storage, the transportation, handling, and the like, since the masking member is reinforced by said reinforcing rib(s). Therefore the masking member of the present invention can protect completely the part to be protected.
- Said masking member consisting of a sheet having bellows part(s) in selected position(s) of said sheet, and said bellows part(s) of said masking member of the present invention can be bent both horizontally and perpendicularly, and further said bellows part(s) can be lengthened. Thus said masking member of the present invention can be applied to various curved surfaces and surfaces having various length.
- Fig. 1 to Fig. 6 relate to a first embodiment of the present invention. Referring now to Fig. 1 to Fig. 6, a masking member (110) consists of a sheet (111) having a pair of bellows parts (112), (112) in the both end parts of said sheet (111). Further adhesive layers (113), (113) are formed on the upper edge and the lower edge of the back-side of said sheet.
- Said bellows parts (112), (112) of said masking member (110) can be bent both in YZ-directions and lengthened to X-direction as shown in fig. 1. Accordingly, said masking member (110) is lengthened to X-direction and bent in Y-direction at said bellows parts(112), (112) corresponding with a shape of a part (211) of a surface (210) and then said masking member (110) is easily attached to said part (211) by adhesive layers (113), (113) of said masking member (110). After said masking member (110) is attached said part (211), a surface treatment such as a spray-coating of a paint (400A) is effected on said surface (210) as shown in Fig. 2. After said spray-coating, said masking member (110) is removed from said part (211) and said paint (400A) is not coated on said part (211) since said part (211) has been protected during said coating.
- Said masking member (110) is also lengthened to X-direction and bent in Y-direction at said bellows parts (112), (112) and then said masking member (110) is attached a part (211A) of a surface (210A) of an article (300A) as shown in Fig. 4.
- Further, Fig. 5 shows that said masking member (110) is attached the lower half (211B) of a bumper (210B) of an automobile (300B). In this case, said bellows parts (112), (112) of said masking member (110) are lengthened to X-direction and bent both in Y and Z-directions corresponding with the shape of said lower half (211B) of said bumper (210B). After a spray-coating of a paint (400B) is effected on said bumper (210B), said masking member (110) is removed from said lower half (211B) of said bumper (210B) and as shown in Fig.6, said paint (400B) is not effected on said lower half (211B) of said bumper (210B) but on the upper half (212B) of said bumper (210B).
- Fig. 7 to Fig. 9 relate to a second embodiment of the present invention. Referring now to Fig. 7 to Fig. 9, a masking member (121) is produced by the molding of a sheet (121) having a pair of bellows parts (122) in the both end parts of said sheet (121) and has a shape corresponding with the surface of the lower half (221) of a bumper (220) of an automobile (310) and indentions (124), (125) are formed in both ends of said masking member (120) wherein projections (224), (225) in both ends of said lower half (221) of said bumper (220) are inserted into said indentions (124), (125) of said masking member (120). Further, an adhesive layer (123) is formed on the upper edge of the inside of said masking member (120), and a reinforcing rib (126) is formed in said masking member (120).
- Said masking member (120) is correctly, easily, and securely attached on said lower half (221) of said bumper (220) by inserting said projections (224), (225) of said bumper (220) into said indentions (124), (125) of said masking member (120) and adhering said adhesive layer (122) to the upper edge of said lower half (221) of said bumper (220). When said masking member (120) is attached on said lower half (221) of said bumper (220), said bellows parts (122), (122) may be bent both in Y and Z-directions and a little lengthened to X-direction corresponding with the shape of said lower half (221) of said bumper (220). And then a paint (410) is coated on said bumper (220) as shown in Fig. 9. After said coating, said masking member (120) is easily removed from said bumper (220) and said paint (410) is not coated on said lower half (221) of said bumper (220) while said paint (410) is coated on the upper half (222) of said bumper (220).
- The masking member of the second embodiment is easily attached to a part of a surface of an article to be protected by inserting (a) projection(s) of said part into (an) indention(s) of the masking member and said masking member is easily removed from said part by extracting said projection(s) of said part from said indention(s) of said masking member. Accordingly, said masking member of the present invention can be correctly, easily, and securely attached to a part of a surface by the guide of said projection(s) of said part and said indention(s) of said masking member.
- Fig. 10 to Fig. 13 relate to a third embodiment of the present invention. Referring now to Fig. 10 to Fig. 13, a masking member (130) is produced by the molding of a sheet (131) having a pair of bellows parts (132), (132) in the both end parts of said sheet (131) and has a shape corresponding with the surface of the lower half (231) of a bumper (230) of an automobile (320) and a bending part (135) is elongated from the lower edge of said masking member (130) and projections (134) are formed on the surface of said Dending part (135). Further, an adhesive layer (133) is formed on the upper edge of the inside of said masking member (130) and a reinforcing rib (136) is formed in said masking member (130).
- Said masking member (130) is correctly, easily, and securely attached on a lower half (231) of said bumper (230) by inserting said projections (134) of said masking member (130) into holes (234) of an inwardly bent part (235) which is elongated from the lower half (231) of said bumper (230) and adhering said adhesive layer (132) to the upper edge of said lower half (231) of said bumper (230). When said masking member (130) is attached on said lower half (231) of said bumper (230), said bellows parts (132), (132) may be bent both i Y and Z-directions and a little lengthened to X-direction corresponding with the shape of said lower half (231) of said bumper (230). And then a paint (420) is coated on said bumper (230) as shown in Fig. 12. After said coating, said masking member (120) is easily removed from said bumper (220) and said paint (420) is not coated on said lower half (221) of said bumper (220) while said paint (420) is coated on the upper half (222) of said bumper (220).
- The masking member of the third embodiment is easily attached to a part of a surface of an article to be protected by inserting (a) projection(s) of said part into (an) indention(s) of the masking member and said masking member is easily removed from said part by extracting said projection(s) of said part from said indention(s) of said masking member.
- Accordingly, said masking member of the present invention can be correctly, easily, and securely attached to a part of a surface by the guide of said projection(s) of said part and said indention(s) of said masking member.
- Fig. 14 to Fig. 18 relate to a fourth embodiment of the present invention. Referring now to Fig. 14 to Fig. 18, a masking member (140) is produced by the molding of a sheet (141) having a pair of bellows parts (142),(142) in the both end parts of said sheet (141) and has a shape corresponding with the surface of the lower half (241) of a bumper (240) of an automobile (340) and pinching parts (144) are formed on the inside of said masking member (140) wherein pillars (244) of air inlets (243) of said lower half (241) of said bumper (240) are inserted into said pinching parts (144) of said masking member (140). As shown in Fig. 15, said pinching parts (144) are formed between a pair of walls (144A), (144A). Further, an adhesive layer (143) is formed on the upper edge of the inside of said masking member (130) and a reinforcing rib (145) is formed in said masking member (140).
- Said masking member (140) is correctly, easily, and securely attached on said lower half (241) of said bumper (240) by inserting said pillars (243) of said bumper (240) into said pinching parts (144) of said masking member (140) and adhering said adhesive layer (143) to the upper edge of said lower half (241) of said bumper (240). Said pinching parts (144) of said masking member (140) respectively pinch said pillars (243) of air inlets (244) by the elasticity thereof so that said masking member (140) is securely attached to said lower half (241) of said bumper (240). When said masking member (140) is attached on said lower half (241) of said bumper (240), said bellows parts (142), (142) may be bent both in Y and Z-directions and a little lengthened to X-direction corresponding with the shape of said lower half (241) of said bumper (240). After said masking member (140) is attached to said lower half (241) of said bumper (240), a paint (440) is coated on said bumper (240) as shown in Fig. 17. After said coating, said masking member (140) is easily removed from said bumper (240) and said paint (430) is not coated on said lower half (241) of said bumper (240) while said paint (430) is coated on the upper half (242) of said bumper (240).
- Fig. 19 to Fig. 21 relate to a fifth embodiment of the present invention. Referring now to Fig. 19 to Fig. 21, a masking member (150) is produced by the molding of a sheet (141) having a pair of bellows parts (152), (152) in the both end parts of said sheet (151) and has a shape corresponding with a lower half (251) of a bumper (250) of an automobile and pinching parts (155) are elongated from the lower edge of said masking member (150) wherein a bending part (255) elongated from the lower edge of said bumper (250) is inserted into said pinching parts (155) of said masking member (150). Further, an adhesive layer (152) is formed on the upper edge of the inside of said masking member (140) and a reinforcing rib (156) is formed in said masking member (150).
- Said masking member (150) is correctly, easily, and securely attached on said lower half (251) of said bumper (250) by inserting said bending part (255) of said bumper (250) and adhering said adhesive layer (152) to the upper edge of said lower half (251) of said bumper (250). Said pinching parts (155) of said masking member (150) respectively pinch said bending part (255) of said bumper (250) by the elasticity thereof so that said masking member (150) is securely attached to said lower half (251) of said bumper (250). When said masking member (150) is attached on said lower half (251) of said bumper (250), said bellows parts (152), (152) may be bent both in Y and Z-directions and a little lengthened to X-direction corresponding with the shape of said lower half (251) of said bumper (250). After said masking member (150) is attached to said lower half (251) of said bumper (250), a paint is coated said bumper (250) after said coating, said masking member (150) is easily removed from said lower half (251) of said bumper (250).
- Fig. 22 to Fig. 25 relate to a sixth embodiment of the present invention. Referring now to Fig. 22 to Fig. 25, a masking member (160) consists of sheet (161) having four bellows parts (162) at regular intervals. A flange part (163) is extended from one end of one side of said sheet (161) and further, a flange part (165) is extended from the other end of the other side of said sheet (161). Two holes (164) are formed in said flange part (163) while two projections (166) are formed on said flange part (165).
- Said masking member (161) is attached on a part (261) of a pillar (260) of a door of an automobile by bending said masking member (160) along said bellows parts (162) to surround said part (261) of said pillar (260) and said two projections (166) of said flange part (165) are respectively engaged in said holes (164) of said flange part (163) to secure said masking member (160) on the circumference of said part (261) of said pillar (260) as shown in Fig. 24.
- After said masking member (160) has been attached on said part (261) of said pillar (260) as above described, said pillar (260) is coated by spraying a paint (440) as shown in Fig. 25A and said part (261) of said pillar (260) which is covered with said masking member (160) is not coated with said paint (440). After coating, said masking member (160) is removed from said part (261) of said pillar (260) by hand, hook, and the like and said pillar (260) has said part (261) which is not coated with said paint (440) as shown in Fig. 25B.
Claims (17)
- A masking member consisting of a sheet having bellows part(s) in selected position(s) of said sheet.
- A masking member according to claim 1 wherein said sheet is of plastics or rubber.
- A masking member in accordance with claim 1 or 2, wherein said sheet is a polyolefin sheet.
- A masking member in accordance with claim 2 or 3 wherein said sheet contains an inorganic filler.
- A masking member in accordance with claim 4, wherein said sheet is a polyolefin sheet and 10 to 500 weight parts of said inorganic filler is mixed in said polyolefin sheet.
- A masking member in accordance with claim 1, wherein said sheet is a fiber sheet.
- A masking member in accordance with claim 1, wherein said sheet is laminated sheet consisting of a soft elastic sheet and a rigid sheet.
- A masking member according to any preceding claim produced by molding or vacuum forming of a sheet.
- A masking member according to any preceding claim, wherein said bellows part(s) are located in both end parts of the masking member.
- A masking member according to any preceding claim including an adhesive layer by which the masking member can be located on a surface to be protected.
- A masking member according to any preceding claim including indentations at both ends of the masking member to receive projections from a surface to be protected.
- A masking member according to any one of claims 1 to 10 including a bending part (135) of said masking member to engage a bent part of a body to be protected and projections (134) on said bending part to engage holes of said bent part
- A masking member according to any one of claims 1 to 10 including pinching parts (144, 155) to engage a body to be protected.
- A masking member according to claim 11, 12 or 13 including a reinforcing rib (126, 136, 145, 156).
- A masking member according to any one of claims 1 to 8, having four bellows parts (162) at regular intervals whereby masking members can surround and protect a pillar.
- A method of surface treatment of an article wherein a part of the surface of the article is covered with a masking member according to any preceding claim, the surface treatment is performed and the masking member is removed.
- A method according to claim 16, wherein said masking member is used to protect the lower half of a bumper of an automobile, or a part of a surface of the underside of an automobile, or a pillar of a door.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1989020035U JPH0319559U (en) | 1988-11-04 | 1989-02-22 | |
JP20035/89U | 1989-02-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0384695A1 EP0384695A1 (en) | 1990-08-29 |
EP0384695B1 true EP0384695B1 (en) | 1992-12-30 |
Family
ID=12015811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90301790A Expired - Lifetime EP0384695B1 (en) | 1989-02-22 | 1990-02-20 | Masking member |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0384695B1 (en) |
AU (1) | AU4994290A (en) |
CA (1) | CA2010567A1 (en) |
DE (1) | DE69000671T2 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9307267D0 (en) * | 1993-04-07 | 1993-06-02 | Western Donald M | Window masking strip |
DE19913799C1 (en) * | 1999-03-26 | 2001-01-11 | Bmb Fensterbau Gmbh | Paint shield for door or window profile provided by cover profile with spring flexure lipped edge cipped over profile edge |
DE10260215A1 (en) * | 2002-12-20 | 2004-07-01 | Pro-Tech Beratungs- Und Entwicklungs Gmbh | Masking agents and coating processes |
US7510375B2 (en) * | 2005-01-04 | 2009-03-31 | United Technologies Corporation | Method of coating and a shield for a component |
FR3033749A1 (en) * | 2015-03-16 | 2016-09-23 | Blooming Invest | NEW REMOVABLE AND EASILY ADAPTABLE BUMPER PROTECTION DEVICE ON THE BACK OF A MOTOR VEHICLE |
CN112774897B (en) * | 2020-12-24 | 2021-09-28 | 东易日盛智能家居科技有限公司 | Automatic nontoxic powder spraying production line of panel |
CN114392855B (en) * | 2021-12-01 | 2022-12-13 | 浙江恒博电气制造有限公司 | Automatic three-proofing paint spraying equipment for manufacturing electrical elements |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2112731B1 (en) * | 1971-03-17 | 1972-10-12 | Helmut Frielingsdorf | Template for repainting motor vehicles |
JPS60227868A (en) * | 1984-04-27 | 1985-11-13 | Honda Motor Co Ltd | Partial painting method of resin molded article |
US4759959A (en) * | 1984-09-13 | 1988-07-26 | Mold-Ex Rubber Company, Inc. | Reusable paint masking member |
JP2514173B2 (en) * | 1986-06-09 | 1996-07-10 | 名古屋油化株式会社 | Anti-corrosion, anti-noise and anti-vibration treatment method for under floor of automobile |
JPH0794706B2 (en) * | 1987-08-12 | 1995-10-11 | 名古屋油化株式会社 | Masking material and mold for the masking material |
-
1990
- 1990-02-19 AU AU49942/90A patent/AU4994290A/en not_active Abandoned
- 1990-02-20 EP EP90301790A patent/EP0384695B1/en not_active Expired - Lifetime
- 1990-02-20 DE DE9090301790T patent/DE69000671T2/en not_active Expired - Fee Related
- 1990-02-21 CA CA002010567A patent/CA2010567A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CA2010567A1 (en) | 1990-08-22 |
DE69000671T2 (en) | 1993-05-13 |
DE69000671D1 (en) | 1993-02-11 |
EP0384695A1 (en) | 1990-08-29 |
AU4994290A (en) | 1990-08-30 |
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