FR2058910A5 - Pneumatic tyre cover with continuous - toroidal shape - Google Patents

Pneumatic tyre cover with continuous - toroidal shape

Info

Publication number
FR2058910A5
FR2058910A5 FR7030272A FR7030272A FR2058910A5 FR 2058910 A5 FR2058910 A5 FR 2058910A5 FR 7030272 A FR7030272 A FR 7030272A FR 7030272 A FR7030272 A FR 7030272A FR 2058910 A5 FR2058910 A5 FR 2058910A5
Authority
FR
France
Prior art keywords
tyre
continuous
core
toroidal shape
olefine
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
Application number
FR7030272A
Other languages
French (fr)
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 Co Ltd
Original Assignee
Dunlop 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 Dunlop Co Ltd filed Critical Dunlop Co Ltd
Application granted granted Critical
Publication of FR2058910A5 publication Critical patent/FR2058910A5/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Tires In General (AREA)

Abstract

A large part of the tyre is formed around a core by injection or ordinary moulding, and an annular opening is left in the tyre so that the core can be removed. After removing the core, a seam-joint is applied to give the tyre a continuous, toroidal shape, with or without the addition of a strip of material to the gap. Specifically, the maerials for the tyre can be on interpolymer of ethylene with a vinyl alkacarbonic acid ester, an alkyl acrylate or alkyl methacrylate, a mixture of a crystalline olefine homopolymer or copolymer with a natural or synthetic rubber or with a rubber homopolymer or an alpha-olefine or copolymer of an alpha-olefine.
FR7030272A 1969-08-19 1970-08-18 Pneumatic tyre cover with continuous - toroidal shape Expired FR2058910A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4130169 1969-08-19

Publications (1)

Publication Number Publication Date
FR2058910A5 true FR2058910A5 (en) 1971-05-28

Family

ID=10419057

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7030272A Expired FR2058910A5 (en) 1969-08-19 1970-08-18 Pneumatic tyre cover with continuous - toroidal shape

Country Status (4)

Country Link
DE (1) DE2041268A1 (en)
FR (1) FR2058910A5 (en)
NL (1) NL7012098A (en)
ZA (1) ZA705537B (en)

Also Published As

Publication number Publication date
NL7012098A (en) 1971-02-23
ZA705537B (en) 1971-04-28
DE2041268A1 (en) 1971-03-04

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Legal Events

Date Code Title Description
ST Notification of lapse