EP0367261A1 - Masking member - Google Patents

Masking member Download PDF

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Publication number
EP0367261A1
EP0367261A1 EP89120299A EP89120299A EP0367261A1 EP 0367261 A1 EP0367261 A1 EP 0367261A1 EP 89120299 A EP89120299 A EP 89120299A EP 89120299 A EP89120299 A EP 89120299A EP 0367261 A1 EP0367261 A1 EP 0367261A1
Authority
EP
European Patent Office
Prior art keywords
masking member
pillar
divided cylindrical
pair
cylindrical parts
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.)
Granted
Application number
EP89120299A
Other languages
German (de)
French (fr)
Other versions
EP0367261B1 (en
Inventor
Seinosuke C/O Nagoya Oilchemical Co. Ltd. Horiki
Reiji C/O Nagoya Oilchemical Co. Ltd. Makino
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.)
Nagoya Oil Chemical Co Ltd
Original Assignee
Nagoya Oil Chemical Co Ltd
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 Nagoya Oil Chemical Co Ltd filed Critical Nagoya Oil Chemical Co Ltd
Publication of EP0367261A1 publication Critical patent/EP0367261A1/en
Application granted granted Critical
Publication of EP0367261B1 publication Critical patent/EP0367261B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B05C17/06—Stencils

Definitions

  • the present invention relates to a masking member which protects a part 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 pair of divided cylindrical parts, wherein said masking member surrounds a circumference of a pillar part of an article by combining said pair of divided cylindrical parts.
  • 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 pillar, frame, and the like.
  • the adhesive tape is wound round said pillar, frame, and the like to protect them from said surface treatment and after said surface treatment, said adhesive tape is removed from said pillar, frame, and the like.
  • Said pillar, frame, and the like may be not effected by said surface treatment since said pillar, frame, and the like was covered with said adhesive tape during said surface treatment.
  • adhesive tape as a masking member has faults in that attaching and removing of the adhesive tape to/from a pillar, frame, and the like take time and have a high labor cost, and further, the adhesive tape wound round a pillar, frame, and the like is buried in the layer of said surface treatment and it is very difficult to find the outer 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.
  • an object of the present invention is to save trouble when the masking member is attached/removed to/from a part to be protected such as a pillar, frame, and the like.
  • a masking member consisting of a pair of divided cylindrical parts, wherein said masking member surrounds a circumference of a pillar part of an article by combining said pair of divided cylindrical parts.
  • Said masking member may be attached on a pillar, frame, and the like by bending said masking member along said groove(s) to surround said pillar, frame, and the like.
  • a masking member (112) consists of a pair of divided cylindrical parts (112A) and (112B) and adhesive layers (115) are respectively formed on the inside of said pair of divided cylindrical parts (112A) and (112B).
  • the inside of said masking member (112) is made of a polystyrene foam sheet (113) and the outside of said masking member (112) is made of a non-foamed polystyrene film (114) which is laminated on said polystyrene foam sheet (113).
  • Said pair of divided cylindrical parts (112A) and (112B) are respectively attached on the circumference of a part (111A) of a pillar (111) of the door of an automobile by said adhesive layers (115) to set up said masking member (112) as shown in Fig. 2.
  • said pillar (111) is coated by spraying a paint (116) as shown in Fig. 3, and said part (111A) of said pillar (111) which is covered with said masking member (112) is not coated with said paint (116).
  • said pair of divided cylindrical parts (112A) and (112B) of said masking member (112) are respectively removed from said part (111A) of said pillar (111) and said pillar (111) has said part (111A) which is not coated with said paint as shown in Fig. 4.
  • said polystyrene foam sheet (113) having a low solvent resistance and a low heat resistance is protected by said non-foamed polystyrene film (114) which covers the outside of said polystyrene foam sheet (113) so that said masking member (112) has an improved solvent resistance and an improved heat resistance and said masking member (112) may not deform when said masking member (112) is heated around 150°C during a drying process so as to be able to reuse said masking member (112).
  • Fig. 5 and Fig. 6 relate to a second embodiment of the present invention.
  • a masking member (122) consists of a pair of divided cylindrical parts (122A) and (122B) and two indented parts (123) are respectively formed in both edges of said one divided cylindrical part (122A) and two insert parts (124) are respectively formed in both edges of said other divided cylindrical part (122B).
  • Said masking member (122) is made of a polypropylene in which 30% by weight of calcium carbonate is mixed.
  • Said pair of divided cylindrical parts (122A) and (122B) are respectively attached on the circumference of a part (121A) of a pillar (121) and said insert parts (124) of said divided cylindrical part (122B) are respectively inserted into said indented parts (123) of said divided cylindrical part (122A) to secure said divided cylindrical part (122B) respectively, and said masking member (122) is assembled from said pair of divided cylindrical parts (122A) and (122B) as shown in Fig. 6.
  • said divided cylindrical parts (122A) and (122B) are respectively removed from said part (121A) of said pillar (121) by hand, hook, and the like.
  • a masking member (132) consists of a pair of divided cylindrical parts (132A) and (132B) made of an elastic material, and clip parts (133) are respectively formed at both edges of said divided cylindrical parts (132A) and (132B).
  • Said pair of divided cylindrical parts (132A) and (132B) are respectively attached on the circumference of a part (131A) of a pillar (131) and fixed by pinching respectively said part (131A) of said pillar (131) between said clip parts (133) of said divided cylindrical parts (132A) and (132B) and said masking member (132) is assembled from said divided cylindrical parts (132A) and (132B).
  • the masking member of the present invention is made of an elastic sheet such as from plastics such as polystyrene, polyethylene, polypropylene, polyvinylchloride, polyurethane, melamine resin, urea resin and the like; plastic foams of said plastics; laminated sheet of said plastic foams and said plastics; fiber sheet such as fabric, knitting, non-woven fabric, paper, corrugated card board 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.
  • plastics such as polystyrene, polyethylene, polypropylene, polyvinylchloride, polyurethane, melamine resin, urea resin and the like
  • plastic foams of said plastics laminated sheet of said plastic foams and said plastics
  • fiber sheet such as fabric, knitting, non-woven fabric, paper, corrugated card board and the like
  • said masking member is made of plastics
  • inorganic filler such as calcium carbonate, talc, 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 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 part of said inorganic filler are mixed into said plastics.
  • Polyolefin such as polyethylene, polypropylene and the like is desirable plastics for the material 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 onto said polystyrene foam.

Abstract

A masking member consisting of a pair of divided cylindrical parts, wherein said masking member surrounds a circumference of a pillar part of an article by combining said pair of divided cylindrical parts is provided in the present invention. Said masking member is used to protect a pillar, frame, and the like from a surface treatment such as coating.

Description

    BACKGROUND OF THE INVENTION
  • The present invention relates to a masking member which protects a part 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 pair of divided cylindrical parts, wherein said masking member surrounds a circumference of a pillar part of an article by combining said pair of divided cylindrical parts. 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 or 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.
    • DESCRIPTION OF THE PRIOR ART
  • Hitherto, adhesive tape has been used as a masking member to protect a pillar, frame, and the like. Namely, the adhesive tape is wound round said pillar, frame, and the like to protect them from said surface treatment and after said surface treatment, said adhesive tape is removed from said pillar, frame, and the like. Said pillar, frame, and the like may be not effected by said surface treatment since said pillar, frame, and the like 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 a pillar, frame, and the like take time and have a high labor cost, and further, the adhesive tape wound round a pillar, frame, and the like is buried in the layer of said surface treatment and it is very difficult to find the outer 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.
    • SUMMARY OF THE INVENTION
  • 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 such as a pillar, frame, and the like. According to the present invention, there is provided a masking member consisting of a pair of divided cylindrical parts, wherein said masking member surrounds a circumference of a pillar part of an article by combining said pair of divided cylindrical parts. Said masking member may be attached on a pillar, frame, and the like by bending said masking member along said groove(s) to surround said pillar, frame, and the like.
    • BRIEF DESCRIPTION OF THE DRAWINGS
    • FIG. 1 to FIG. 4 relate to a first embodiment of the present invention.
    • FIG. 1 is a perspective view of the masking member.
    • FIG. 2 is a cross sectional view showing that the masking member is attached on a pillar.
    • FIG. 3 is a partial front view of the pillar after coating.
    • FIG. 4 is a partial front view of the pillar after the masking member is removed.
    • FIG. 5 and FIG. 6 relate to a second embodiment of the present invention.
    • FIG. 5 is a perspective view of the masking member.
    • FIG. 6 is a perspective view showing that the masking member is attached on a pillar.
    • FIG. 7 is a cross sectional view showing that the masking member of a third embodiment is attached on a pillar.
    DETAILED DESCRIPTION
  • Fig. 1 to Fig. 4 relate to a first embodiment of the present invention. Referring now to Fig. 1 to Fig. 4, a masking member (112) consists of a pair of divided cylindrical parts (112A) and (112B) and adhesive layers (115) are respectively formed on the inside of said pair of divided cylindrical parts (112A) and (112B). The inside of said masking member (112) is made of a polystyrene foam sheet (113) and the outside of said masking member (112) is made of a non-foamed polystyrene film (114) which is laminated on said polystyrene foam sheet (113).
  • Said pair of divided cylindrical parts (112A) and (112B) are respectively attached on the circumference of a part (111A) of a pillar (111) of the door of an automobile by said adhesive layers (115) to set up said masking member (112) as shown in Fig. 2. After said part (111A) of said pillar (111) is covered with said masking member (112) consisting of said pair of divided cylindrical parts (112A) and (112B), said pillar (111) is coated by spraying a paint (116) as shown in Fig. 3, and said part (111A) of said pillar (111) which is covered with said masking member (112) is not coated with said paint (116). After coating, said pair of divided cylindrical parts (112A) and (112B) of said masking member (112) are respectively removed from said part (111A) of said pillar (111) and said pillar (111) has said part (111A) which is not coated with said paint as shown in Fig. 4. In this embodiment, said polystyrene foam sheet (113) having a low solvent resistance and a low heat resistance is protected by said non-foamed polystyrene film (114) which covers the outside of said polystyrene foam sheet (113) so that said masking member (112) has an improved solvent resistance and an improved heat resistance and said masking member (112) may not deform when said masking member (112) is heated around 150°C during a drying process so as to be able to reuse said masking member (112).
  • Fig. 5 and Fig. 6 relate to a second embodiment of the present invention. Referring now to Fig. 5 and Fig. 6, a masking member (122) consists of a pair of divided cylindrical parts (122A) and (122B) and two indented parts (123) are respectively formed in both edges of said one divided cylindrical part (122A) and two insert parts (124) are respectively formed in both edges of said other divided cylindrical part (122B). Said masking member (122) is made of a polypropylene in which 30% by weight of calcium carbonate is mixed. Said pair of divided cylindrical parts (122A) and (122B) are respectively attached on the circumference of a part (121A) of a pillar (121) and said insert parts (124) of said divided cylindrical part (122B) are respectively inserted into said indented parts (123) of said divided cylindrical part (122A) to secure said divided cylindrical part (122B) respectively, and said masking member (122) is assembled from said pair of divided cylindrical parts (122A) and (122B) as shown in Fig. 6. After a surface treatment, said divided cylindrical parts (122A) and (122B) are respectively removed from said part (121A) of said pillar (121) by hand, hook, and the like.
  • Fig. 7 relates to a third embodiment of the present invention. Referring now to Fig. 7, a masking member (132) consists of a pair of divided cylindrical parts (132A) and (132B) made of an elastic material, and clip parts (133) are respectively formed at both edges of said divided cylindrical parts (132A) and (132B). Said pair of divided cylindrical parts (132A) and (132B) are respectively attached on the circumference of a part (131A) of a pillar (131) and fixed by pinching respectively said part (131A) of said pillar (131) between said clip parts (133) of said divided cylindrical parts (132A) and (132B) and said masking member (132) is assembled from said divided cylindrical parts (132A) and (132B).
  • The masking member of the present invention is made of an elastic sheet such as from plastics such as polystyrene, polyethylene, polypropylene, polyvinylchloride, polyurethane, melamine resin, urea resin and the like; plastic foams of said plastics; laminated sheet of said plastic foams and said plastics; fiber sheet such as fabric, knitting, non-woven fabric, paper, corrugated card board 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.
  • In cases where said masking member is made of plastics, it is desirable to mix inorganic filler such as calcium carbonate, talc, bentonite, stone powder, blast furnace slag, flyash, and the like into said plastics since heat resistance, mechanical properties and the like of said masking member are improved by said inorganic filler and further, when used masking member is burnt in a combustion furnace, a smaller combustion energy is produced so that said combustion furnace will stand long use. Usualy, 10 to 500 weight parts, desirably 20 to 400 weight part of said inorganic filler are mixed into said plastics. Polyolefin such as polyethylene, polypropylene and the like is desirable plastics for the material 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 onto said polystyrene foam.

Claims (7)

1. A masking member consisting of a pair of divided cylindrical parts, wherein said masking member surrounds a circumference of a pillar part of an article by combining said pair of divided cylindrical parts.
2. A masking member in accordance with Claim 1, wherein said masking member is made of a polystyrene foam sheet.
3. A masking member in accordance with Claim 1, wherein said masking member is made of a laminated sheet of a plastic film and a polystyrene foam sheet.
4. A masking member in accordance with Claim 1, wherein said masking member is made of a thermoplastic sheet.
5. A masking member in accordance with Claim 4, wherein an inorganic filler is mixed in said thermoplastic sheet.
6. A masking member in accordance with Claim 1, wherein said masking member is made of a fiber sheet.
7. A masking member in accordance with Claim 6, wherein a thermoplastic resin and/or a thermosetting resin is impregnated into said fiber sheet.
EP89120299A 1988-11-04 1989-11-02 Masking member Expired - Lifetime EP0367261B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP14454788 1988-11-04
JP144547/88 1988-11-04
JP85295/89 1989-07-19
JP1989085295U JPH02121164U (en) 1988-11-04 1989-07-19

Publications (2)

Publication Number Publication Date
EP0367261A1 true EP0367261A1 (en) 1990-05-09
EP0367261B1 EP0367261B1 (en) 1993-08-25

Family

ID=26426314

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89120299A Expired - Lifetime EP0367261B1 (en) 1988-11-04 1989-11-02 Masking member

Country Status (5)

Country Link
EP (1) EP0367261B1 (en)
JP (1) JPH02121164U (en)
KR (1) KR950000228Y1 (en)
CA (1) CA2001849A1 (en)
DE (1) DE68908662T2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2279592A (en) * 1993-07-05 1995-01-11 Trevor Vella Tomlin Selective colour powder coating of extruded aluminium window frames using enclosure mask
GB2281871A (en) * 1993-08-17 1995-03-22 Donald Murray Western Masking device
WO1996013336A1 (en) * 1994-10-31 1996-05-09 Dietrich Guenter Paint coating device
DE10260154B3 (en) * 2002-12-20 2004-07-08 Fränkische Rohrwerke Gebr. Kirchner GmbH + Co. KG Corrugated sleeve for covering profile edge of automobile window opening to prevent coating with paint has inwards bent wing section on one or both sides of longitudinal slit receiving profile edge

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09187696A (en) * 1995-12-28 1997-07-22 Nagoya Yuka Kk Covering material

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0248652A2 (en) * 1986-06-03 1987-12-09 Nagoya Oilchemical Co., Ltd. An expanding and shrinking member
EP0262946B1 (en) * 1986-09-30 1991-12-27 Nagoya Oilchemical Co., Ltd. A masking member

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60118401A (en) * 1983-11-28 1985-06-25 Mitsubishi Metal Corp Attachable/detachable head type cutting tool
JPS60135560A (en) * 1983-12-23 1985-07-18 Shinko Kagaku Kogyo Kk Masking tape or sheet for galvanizing
JPS6133256A (en) * 1984-07-26 1986-02-17 Toshiba Corp Masking set jig
JPS6344957A (en) * 1986-08-11 1988-02-25 Hagiwara Kogyo Kk Protective sheet for painting

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0248652A2 (en) * 1986-06-03 1987-12-09 Nagoya Oilchemical Co., Ltd. An expanding and shrinking member
EP0262946B1 (en) * 1986-09-30 1991-12-27 Nagoya Oilchemical Co., Ltd. A masking member

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2279592A (en) * 1993-07-05 1995-01-11 Trevor Vella Tomlin Selective colour powder coating of extruded aluminium window frames using enclosure mask
GB2279592B (en) * 1993-07-05 1997-03-19 Trevor Vella Tomlin Manufacture of coating metal parts
GB2281871A (en) * 1993-08-17 1995-03-22 Donald Murray Western Masking device
WO1996013336A1 (en) * 1994-10-31 1996-05-09 Dietrich Guenter Paint coating device
DE10260154B3 (en) * 2002-12-20 2004-07-08 Fränkische Rohrwerke Gebr. Kirchner GmbH + Co. KG Corrugated sleeve for covering profile edge of automobile window opening to prevent coating with paint has inwards bent wing section on one or both sides of longitudinal slit receiving profile edge

Also Published As

Publication number Publication date
KR900009756U (en) 1990-06-01
DE68908662D1 (en) 1993-09-30
DE68908662T2 (en) 1993-12-16
JPH02121164U (en) 1990-10-01
KR950000228Y1 (en) 1995-01-16
CA2001849A1 (en) 1990-05-04
EP0367261B1 (en) 1993-08-25

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