FR2299148A1 - Elastomer and plastic shock absorber bushing - is made by injecting second material onto first as temporary insert is withdrawn - Google Patents

Elastomer and plastic shock absorber bushing - is made by injecting second material onto first as temporary insert is withdrawn

Info

Publication number
FR2299148A1
FR2299148A1 FR7538074A FR7538074A FR2299148A1 FR 2299148 A1 FR2299148 A1 FR 2299148A1 FR 7538074 A FR7538074 A FR 7538074A FR 7538074 A FR7538074 A FR 7538074A FR 2299148 A1 FR2299148 A1 FR 2299148A1
Authority
FR
France
Prior art keywords
elastomer
withdrawn
injecting
shock absorber
material onto
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
FR7538074A
Other languages
French (fr)
Other versions
FR2299148B1 (en
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.)
Dunlop Ltd
Original Assignee
Dunlop 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 Dunlop Ltd filed Critical Dunlop Ltd
Publication of FR2299148A1 publication Critical patent/FR2299148A1/en
Application granted granted Critical
Publication of FR2299148B1 publication Critical patent/FR2299148B1/fr
Granted 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/72—Encapsulating inserts having non-encapsulated projections, e.g. extremities or terminal portions of electrical components
    • 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
    • B29C2791/001—Shaping in several steps
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • 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
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • 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
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Springs (AREA)
  • Laminated Bodies (AREA)

Abstract

A method of making an article of elastomer and plastics bonded together consists of filling a first mould void with elastomer (or plastics) while the adjacent second mould void(s) is/are filled with a rigid insert, then withdrawing this insert and replacing ti by the second material, plastics (or elastomer), until the latter fills the second mould void and is bonded to the first material. The first material may be either pre-formed in another mould and introduced mechanically, or injected. Used for mfr. of shock absorbers consisting of an elastomer sleeve with inner and outer plastic (e.g. nylon) sleeves. The fabrication is much simpler than rubber-to-metal bonding.
FR7538074A 1975-01-29 1975-12-12 Elastomer and plastic shock absorber bushing - is made by injecting second material onto first as temporary insert is withdrawn Granted FR2299148A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB406375 1975-01-29
GB406675 1975-01-29

Publications (2)

Publication Number Publication Date
FR2299148A1 true FR2299148A1 (en) 1976-08-27
FR2299148B1 FR2299148B1 (en) 1978-05-12

Family

ID=26238825

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7538074A Granted FR2299148A1 (en) 1975-01-29 1975-12-12 Elastomer and plastic shock absorber bushing - is made by injecting second material onto first as temporary insert is withdrawn

Country Status (4)

Country Link
JP (1) JPS5193985A (en)
DE (1) DE2558406A1 (en)
FR (1) FR2299148A1 (en)
IT (1) IT1058330B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160474A (en) * 1990-12-21 1992-11-03 Cadillac Rubber & Plastics, Inc. Overmolded gasket, heat exchanger tank incorporating the same and method for making the same
US5246065A (en) * 1990-12-21 1993-09-21 Cadillac Rubber & Plastics, Inc. Heat exchanger tank incorporating an overmolded gasket

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4385025A (en) * 1979-10-22 1983-05-24 Barry Wright Corporation Method of coinjection molding of thermoplastic and thermoplastic elastomer
JPS58132363A (en) * 1982-01-30 1983-08-06 Kinugawa Rubber Ind Co Ltd Cylindrical spacer and its production
US4559688A (en) * 1983-10-24 1985-12-24 General Motors Corporation Bonding EPDM gaskets to filled nylon heat exchanger parts
JPS6334111A (en) * 1986-07-29 1988-02-13 Tokai Rubber Ind Ltd Manufacture of connecting rod equipped with rubber bushing
JPH06356B2 (en) * 1988-06-10 1994-01-05 本田技研工業株式会社 Anti-vibration rubber molding die
DE102009044958A1 (en) * 2009-09-24 2011-04-07 Zf Friedrichshafen Ag Elastomeric bush bearing with plastic outer tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160474A (en) * 1990-12-21 1992-11-03 Cadillac Rubber & Plastics, Inc. Overmolded gasket, heat exchanger tank incorporating the same and method for making the same
US5246065A (en) * 1990-12-21 1993-09-21 Cadillac Rubber & Plastics, Inc. Heat exchanger tank incorporating an overmolded gasket

Also Published As

Publication number Publication date
IT1058330B (en) 1982-04-10
FR2299148B1 (en) 1978-05-12
DE2558406A1 (en) 1976-08-05
JPS5193985A (en) 1976-08-18

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Legal Events

Date Code Title Description
ST Notification of lapse