EP0429260A1 - A masking arrangement and masking methods - Google Patents

A masking arrangement and masking methods Download PDF

Info

Publication number
EP0429260A1
EP0429260A1 EP90312499A EP90312499A EP0429260A1 EP 0429260 A1 EP0429260 A1 EP 0429260A1 EP 90312499 A EP90312499 A EP 90312499A EP 90312499 A EP90312499 A EP 90312499A EP 0429260 A1 EP0429260 A1 EP 0429260A1
Authority
EP
European Patent Office
Prior art keywords
masking
boss
hole
article
masking member
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Withdrawn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
EP90312499A
Other languages
German (de)
French (fr)
Inventor
Seinosuke C/O Nagoya Oilchemical Co. Ltd. Horiki
Reiji C/O Nagoya Oilchemical Co. Ltd. Makino
Tetuji C/O Nagoya Oilchemical Co. Ltd. Unno
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 EP0429260A1 publication Critical patent/EP0429260A1/en
Withdrawn legal-status Critical Current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
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
    • 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
    • B05B12/26—Masking elements, i.e. elements defining uncoated areas on an object to be coated for masking cavities

Definitions

  • the present invention relates to a masking arrangement and masking methods adapted to protect a hole in an article from a surface treatment.
  • a masking member (103) consisting a vessel type inserting part (103)A and a flange (103)B extending from the upper edge of said inserting part (103)A has been provided to protect a hole (102) in an article (101).
  • Said masking member (103) is attached onto said hole (102) by applying it to a boss (102)A surrounding said hole (102).
  • said masking member (103) is made of a thermo-plastic material
  • said masking member (103) may contract by said heating since said masking member has residual strain when said masking member is molded and falls into said hole (102) as shown in Fig. 4.
  • said hole (102) cannot be completely protected by said masking member (103) during said surface treatment process.
  • an object of the present invention is to provide improved masking protection for a hole if an article from a surface treatment, and reduce the chance of contraction of a masking member into said hole of said article.
  • a masking arrangement comprising, in an article to be surface heated, a hole with a boss round it, and a masking member consisting of a member having a groove near its edge wherein said masking member is attached by said boss round said hole being received in said groove of said masking member.
  • This invention also provides a method of masking a hole and a boss which is around it which are provided in an article to be surface treated by attaching to the boss a member having a groove near its edge, in which the boss is received.
  • the invention provides a method of surface treating an article having a hole and a boss which is around it which are to be masked from the surface treatment, including the steps of attaching to the boss a member having a groove near its edge, in which the boss is received, performing the surface treatment and removing the member.
  • the invention provides the use of a member for the purpose of masking a hole, which is in an article, and a boss which is around the hole, during surface treatment of the article, the member having a groove near its edge in which in use the boss is received.
  • Fig. 1 and Fig. 2 relate to an embodiment of the present invention
  • Fig. 3 and Fig. 4 relate to the prior art.
  • a plate type masking member consists of a vessel type inserting part (113)A, a groove (113)B surrounding said inserting part (113)A, and a flange (113)C extending from the outside of said groove (113)B.
  • Said masking member (113) may be produced by the vacuum forming or press molding of a plastic sheet such as a polystyrene sheet, polyethylene sheet, polypropylene sheet, polyurethane sheet, or the like, a foamed plastic sheet, such as a foamed polystyrene sheet, foamed polyethylene sheet, foamed polypropylene sheet, foamed polyurethane sheet, or the like, a laminated sheet consisting of a plural number of sheets selected from said plastic sheets and foamed plastic sheets.
  • a plastic sheet such as a polystyrene sheet, polyethylene sheet, polypropylene sheet, polyurethane sheet, or the like
  • a foamed plastic sheet such as a foamed polystyrene sheet, foamed polyethylene sheet, foamed polypropylene sheet, foamed polyurethane sheet, or the like
  • a laminated sheet consisting of a plural number of sheets selected from said plastic sheets and foamed plastic sheets.
  • said masking member (113) may be produced by expansion molding using expandable beads such as expandable polystyrene beads, expandable polyethylene beads, expandable polypropylene beads, or the like, or by injection molding using plastic pellets such as polystyrene pellets, polyethylene pellets, polypropylene pellets or the like.
  • An inorganic filler such as calcium carbonate, talc, bentonite, fly ash, blast furnace slag or the like may be mixed in said plastics as a material of said masking member (113). When said inorganic filler is mixed in said plastics, the mechanical strength of said masking member (113) may be improved and the plastic needed for said masking member (113) may be reduced.
  • the heat of combustion from said burnt masking member may be reduced since said inorganic filler in said masking member is incombustible. Therefore, the life of the incinerator may be prolonged.
  • Preferable plastic as the material for the masking member (113) may be a polyolefin such as polyethylene, polypropylene or the like since said polyolefin has solvent resistance.
  • Said masking member (113) is attached onto said hole (112) by inserting said boss (112)A of said hole (112) into said groove (113)B of said masking member (113) before a surface treatment.
  • the surface treatment can be performed.
  • the hole and boss are not subject to the surface treatment.
  • the masking member can be removed, e.g. by being pulled off, manually or by a robot, or can be destroyed by heating in situ . This leaves the hole and boss unaffected by the surface treatment.
  • This invention is particularly useful for protecting parts of the surfaces of substantial manufactured articles such as car or other automobile bodies.

Landscapes

  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Physical Vapour Deposition (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)

Abstract

A masking structure to protect a hole (112) of in article (111) from a surface treatment is provided in the present invention.
Said masking structure comprises a hole in an article with a boss (112A) around it and a masking member (113) consisting of a member having a groove (113B) near its edge, wherein said masking member is attached onto said hole by inserting said boss round said hole into said groove of said masking member.

Description

  • The present invention relates to a masking arrangement and masking methods adapted to protect a hole in an article from a surface treatment.
  • When a surface treatment is effected on the surface of an article, and if said surface of said article has a hole in which said surface treatment should not be effected, said hole needs to be protected by said masking member.
  • Hitherto, as shown in Fig. 3, a masking member (103) consisting a vessel type inserting part (103)A and a flange (103)B extending from the upper edge of said inserting part (103)A has been provided to protect a hole (102) in an article (101).
  • Said masking member (103) is attached onto said hole (102) by applying it to a boss (102)A surrounding said hole (102). In the case that said surface treatment has a heating process and said masking member (103) is made of a thermo-plastic material, said masking member (103) may contract by said heating since said masking member has residual strain when said masking member is molded and falls into said hole (102) as shown in Fig. 4. As a result, said hole (102) cannot be completely protected by said masking member (103) during said surface treatment process.
  • Accordingly, an object of the present invention is to provide improved masking protection for a hole if an article from a surface treatment, and reduce the chance of contraction of a masking member into said hole of said article.
  • According to the present invention, there is provided a masking arrangement comprising, in an article to be surface heated, a hole with a boss round it, and a masking member consisting of a member having a groove near its edge wherein said masking member is attached by said boss round said hole being received in said groove of said masking member.
  • This invention also provides a method of masking a hole and a boss which is around it which are provided in an article to be surface treated by attaching to the boss a member having a groove near its edge, in which the boss is received.
  • Further the invention provides a method of surface treating an article having a hole and a boss which is around it which are to be masked from the surface treatment, including the steps of attaching to the boss a member having a groove near its edge, in which the boss is received, performing the surface treatment and removing the member.
  • In addition the invention provides the use of a member for the purpose of masking a hole, which is in an article, and a boss which is around the hole, during surface treatment of the article, the member having a groove near its edge in which in use the boss is received.
  • In order that the invention may be more clearly understood, the following description is given, by way of example only, with reference to the accompanying drawings in which:
  • Fig. 1 and Fig. 2 relate to an embodiment of the present invention, and Fig. 3 and Fig. 4 relate to the prior art.
    • Fig. 1 is a partial side sectional view showing a hole in an article protected by a masking member.
    • Fig. 2 is a perspective view of said masking member.
  • Referring now to Fig. 1 and Fig. 2, a hole (112) in an article (111) is surrounded by a boss (112)A. A plate type masking member consists of a vessel type inserting part (113)A, a groove (113)B surrounding said inserting part (113)A, and a flange (113)C extending from the outside of said groove (113)B.
  • Said masking member (113) may be produced by the vacuum forming or press molding of a plastic sheet such as a polystyrene sheet, polyethylene sheet, polypropylene sheet, polyurethane sheet, or the like, a foamed plastic sheet, such as a foamed polystyrene sheet, foamed polyethylene sheet, foamed polypropylene sheet, foamed polyurethane sheet, or the like, a laminated sheet consisting of a plural number of sheets selected from said plastic sheets and foamed plastic sheets. Further, said masking member (113) may be produced by expansion molding using expandable beads such as expandable polystyrene beads, expandable polyethylene beads, expandable polypropylene beads, or the like, or by injection molding using plastic pellets such as polystyrene pellets, polyethylene pellets, polypropylene pellets or the like. An inorganic filler such as calcium carbonate, talc, bentonite, fly ash, blast furnace slag or the like may be mixed in said plastics as a material of said masking member (113). When said inorganic filler is mixed in said plastics, the mechanical strength of said masking member (113) may be improved and the plastic needed for said masking member (113) may be reduced. Further if said masking member (113) is incinerated after use, the heat of combustion from said burnt masking member may be reduced since said inorganic filler in said masking member is incombustible. Therefore, the life of the incinerator may be prolonged.
  • Preferable plastic as the material for the masking member (113) may be a polyolefin such as polyethylene, polypropylene or the like since said polyolefin has solvent resistance.
  • Said masking member (113) is attached onto said hole (112) by inserting said boss (112)A of said hole (112) into said groove (113)B of said masking member (113) before a surface treatment.
  • When said masking member (113) is heated and softened during said surface treatment, a contraction stress originating in the residual strain is generated in said masking member (113) but the contraction of said masking member (113) is prevented since said groove (113)B of said masking member (113) firmly holds said boss (112)A. Said boss (112)A may be firmly caught between the pair of walls (113)D, (113)D of said groove (113)B since the contraction force is generated in said groove (113)B. Accordingly, said masking member (113) is prevented from contracting by heating and so does not fall into said hole (112).
  • With the masking member in place, the surface treatment can be performed. The hole and boss are not subject to the surface treatment. After treatment, the masking member can be removed, e.g. by being pulled off, manually or by a robot, or can be destroyed by heating in situ. This leaves the hole and boss unaffected by the surface treatment. This invention is particularly useful for protecting parts of the surfaces of substantial manufactured articles such as car or other automobile bodies.

Claims (9)

1. A masking arrangement comprising, in an article to be surface heated, a hole with a boss round it, and a masking member consisting of a member having a groove near its edge wherein said masking member is attached by said boss round said hole being received in said groove of said masking member.
2. A method of masking a hole and a boss which is around it which are provided in an article to be surface treated by attaching to the boss a member having a groove near its edge, in which the boss is received.
3. A method of surface treating an article having a hole and a boss which is around it which are to be masked from the surface treatment, including the steps of attaching to the boss a member having a groove near its edge, in which the boss is received, performing the surface treatment and removing the member.
4. The use of a member for the purpose of masking a hole, which is in an article, and a boss which is around the hole, during surface treatment of the article, the member having a groove near its edge in which in use the boss is received.
5. The invention of any preceding claim wherein said masking member has residual strain when it is molded.
6. The invention of any preceding claim wherein said masking member is made of a plastic sheet, which may include an inorganic filler, and or may be a foamed plastic sheet.
7. The invention of claim 6, wherein said plastic sheet is a polyolefin sheet.
8. The invention of any preceding claim wherein the article is a part of an automobile.
9. The invention of claim 8 wherein the masking member is vacuum formed.
EP90312499A 1989-11-17 1990-11-16 A masking arrangement and masking methods Withdrawn EP0429260A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP134206/89U 1989-11-17
JP1989134206U JPH086554Y2 (en) 1989-11-17 1989-11-17 Masking material mounting structure

Publications (1)

Publication Number Publication Date
EP0429260A1 true EP0429260A1 (en) 1991-05-29

Family

ID=15122902

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90312499A Withdrawn EP0429260A1 (en) 1989-11-17 1990-11-16 A masking arrangement and masking methods

Country Status (3)

Country Link
EP (1) EP0429260A1 (en)
JP (1) JPH086554Y2 (en)
CA (1) CA2030099A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0853982A3 (en) * 1997-01-15 2001-12-12 STAHLSCHMIDT & MAIWORM GmbH Apparatus and method to cover the fastening holes of a wheel
CN102978566A (en) * 2012-12-14 2013-03-20 西北有色金属研究院 Method for preparing vacuum physical vapor deposition plating pattern
IT201800002828A1 (en) * 2018-02-19 2019-08-19 Ramponi S P A METHOD FOR PREPARING STUDS FOR THEIR RESPECTIVE SURFACE FINISH

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH578054A5 (en) * 1973-09-07 1976-07-30 Oxy Metal Finishing Corp Jigs for selective electroplating - using inflatable balloons to mask the interior of the workpieces being plated
FR2623734A1 (en) * 1987-12-01 1989-06-02 Sofitec Sa Protective masking device
EP0331455A2 (en) * 1988-03-03 1989-09-06 Bowthorpe-Hellermann Limited Mask and masking method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH578054A5 (en) * 1973-09-07 1976-07-30 Oxy Metal Finishing Corp Jigs for selective electroplating - using inflatable balloons to mask the interior of the workpieces being plated
FR2623734A1 (en) * 1987-12-01 1989-06-02 Sofitec Sa Protective masking device
EP0331455A2 (en) * 1988-03-03 1989-09-06 Bowthorpe-Hellermann Limited Mask and masking method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0853982A3 (en) * 1997-01-15 2001-12-12 STAHLSCHMIDT & MAIWORM GmbH Apparatus and method to cover the fastening holes of a wheel
CN102978566A (en) * 2012-12-14 2013-03-20 西北有色金属研究院 Method for preparing vacuum physical vapor deposition plating pattern
CN102978566B (en) * 2012-12-14 2015-02-25 西北有色金属研究院 Method for preparing vacuum physical vapor deposition plating pattern
IT201800002828A1 (en) * 2018-02-19 2019-08-19 Ramponi S P A METHOD FOR PREPARING STUDS FOR THEIR RESPECTIVE SURFACE FINISH

Also Published As

Publication number Publication date
JPH0375882U (en) 1991-07-30
CA2030099A1 (en) 1991-05-18
JPH086554Y2 (en) 1996-02-28

Similar Documents

Publication Publication Date Title
EP0257872B1 (en) A masking member
KR930001190Y1 (en) Masking member
CA1078032A (en) Recoverable sleeve with frangible restraining means
EP0256782B1 (en) A masking member
JP2863171B2 (en) Masking material
GB2229394B (en) A resin prepreg having a protective sheet thereon,and a method of manufacturing a component therefrom
EP0429260A1 (en) A masking arrangement and masking methods
EP0405025A1 (en) Method of thread masking and thread masked part
EP0207720A2 (en) A masking member
GB2033293A (en) Protecting pipe sealing areas
ATE166785T1 (en) BIOERODABLE ANT CONCEPTUAL SUPPOSITORY
EP0303270B1 (en) A panel type masking member
KR950000227Y1 (en) Masking member
DE69119322D1 (en) Process for producing a microporous film with increased breaking strength during melting and microporous film produced in this way
CA2265530A1 (en) Improved insert for thermoforming
EP0384696B1 (en) Masking member
WO1991015304A1 (en) Masking material in connected pieces
EP0606694A1 (en) A masking member
EP0472732A1 (en) Method of attaching or detaching masking material
JPH0612875Y2 (en) Masking material
JPS5725930A (en) Manufacture of tile arranging member
EP0367261B1 (en) Masking member
JPH01197114A (en) Molding method for window molding
EP0082685A1 (en) Packaging cushions and method of making cushioning material
JPH0618602Y2 (en) Connection masking material

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: A1

Designated state(s): DE FR GB IT SE

17P Request for examination filed

Effective date: 19911014

17Q First examination report despatched

Effective date: 19920902

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: 19930907