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CA2227069A1 - Process of making b-pillar covers and covers produced thereby - Google Patents

Process of making b-pillar covers and covers produced thereby

Info

Publication number
CA2227069A1
CA2227069A1 CA002227069A CA2227069A CA2227069A1 CA 2227069 A1 CA2227069 A1 CA 2227069A1 CA 002227069 A CA002227069 A CA 002227069A CA 2227069 A CA2227069 A CA 2227069A CA 2227069 A1 CA2227069 A1 CA 2227069A1
Authority
CA
Canada
Prior art keywords
sheet
molding
covers
thin
move
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
CA002227069A
Other languages
French (fr)
Other versions
CA2227069C (en
Inventor
Lassi Mauno Ojanen
Fritz Reichenberger
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.)
Decoma International Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Priority claimed from PCT/IB1996/001005 external-priority patent/WO1997003807A2/en
Publication of CA2227069A1 publication Critical patent/CA2227069A1/en
Application granted granted Critical
Publication of CA2227069C publication Critical patent/CA2227069C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/18—Thermoforming apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/30—Moulds
    • B29C51/34—Moulds for undercut articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/44—Removing or ejecting moulded articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • B60R13/0237—Side or rear panels
    • B60R13/025—Pillars; Roof rails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/006—Using vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10—Forming by pressure difference, e.g. vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
    • B29K2055/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

A method of making thin walled covers (10) with the use of a vacuum mold assembly (58) comprising the steps of effecting a relative movement between a thin sheet (44) of the thermoplastic material and the vacuum mold assembly (58) and thereafter applying a vacuum to the vacuum mold (62) sufficient to form a peripheral seal with a surface area of the sheet (44) and to cause a plurality of spaced main body portions of the sheet (44) to move into engagement with surfaces of the molding horns (72) in a direction generally perpendicular thereto and adjacent portions of the heated sheet (44) to move into engagement around thin marginal edge molding surfaces (22) of the molding horns (72) and into engagement with the interned surface molding surfaces of the molding horns (72) so as to form a plurality of thin walled covers (10) each comprising a main body portion having a U-shaped marginal edge (14) along one elongated peripheral extent thereof of a shape to snugly receive therein the sheet metal marginal edge of a vehicle part and an interned flange (16) along an opposed elongated peripheral extent thereof of a shape to be adhered to the interned surface of the vehicle part, and separating the sheet with the thin walled covers therein in a cooled condition from the vacuum mold assembly during which the molding horns (72) move so that the surface configuration providing portions of the sheet (44) move relatively away from the mold surfaces (62) in an angular direction having a component in a direction to withdraw the thin marginal edge molding surfaces (22) of the molding horns (72) relatively out of the U-shaped marginal edges (14) of the formed thin walled covers.
The covers are subsequently cut from the sheet.
CA002227069A 1995-07-18 1996-07-17 Process of making b-pillar covers and covers produced thereby Expired - Fee Related CA2227069C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US50386395A 1995-07-18 1995-07-18
US08/503,863 1995-07-18
PCT/IB1996/001005 WO1997003807A2 (en) 1995-07-18 1996-07-17 Process of making b-pillar covers and covers produced thereby

Publications (2)

Publication Number Publication Date
CA2227069A1 true CA2227069A1 (en) 1997-02-06
CA2227069C CA2227069C (en) 2007-02-06

Family

ID=37734898

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002227069A Expired - Fee Related CA2227069C (en) 1995-07-18 1996-07-17 Process of making b-pillar covers and covers produced thereby

Country Status (1)

Country Link
CA (1) CA2227069C (en)

Also Published As

Publication number Publication date
CA2227069C (en) 2007-02-06

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed