SE8400821L - DECKBYGGNADSMASKIN - Google Patents

DECKBYGGNADSMASKIN

Info

Publication number
SE8400821L
SE8400821L SE8400821A SE8400821A SE8400821L SE 8400821 L SE8400821 L SE 8400821L SE 8400821 A SE8400821 A SE 8400821A SE 8400821 A SE8400821 A SE 8400821A SE 8400821 L SE8400821 L SE 8400821L
Authority
SE
Sweden
Prior art keywords
forming apparatus
expansion
wires
axial direction
central
Prior art date
Application number
SE8400821A
Other languages
Swedish (sv)
Other versions
SE8400821D0 (en
Inventor
A G Goodfellow
W L Jackson
Original Assignee
Bates W & A 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 Bates W & A Ltd filed Critical Bates W & A Ltd
Publication of SE8400821D0 publication Critical patent/SE8400821D0/en
Publication of SE8400821L publication Critical patent/SE8400821L/en

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)
    • B29D30/36—Expansion of tyres in a flat form, i.e. expansion to a toroidal shape independently of their building-up process, e.g. of tyres built by the flat-tyres method or by jointly covering two bead-rings
    • 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)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/24—Drums
    • B29D30/26—Accessories or details, e.g. membranes, transfer rings
    • B29D2030/265—Radially expandable and contractable drum comprising a set of circumferentially arranged elastic, flexible elements, e.g. blades or laminas, with or without expandable annular sleeve or bladder

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

A shape-forming apparatus (10) for carcases of radial tyres is described. In the shape-forming apparatus (10) the expansion of the forming apparatus is exactly controlled by a central, expandable bellows (16) in which a narrow section of the, in the axial direction, central region of the forming apparatus starts the expansion. Preferably an arrangement of wires (17) extending in the axial direction is fastened to bead-gripping apparatuses (13, 14) and arranged such that the wires are subjected to tensile stress during the rotation of the bellows in such a manner that the central region is held in an exactly determined central position during the expansion. <IMAGE>
SE8400821A 1983-02-16 1984-02-15 DECKBYGGNADSMASKIN SE8400821L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB838304196A GB8304196D0 (en) 1983-02-16 1983-02-16 Machinery

Publications (2)

Publication Number Publication Date
SE8400821D0 SE8400821D0 (en) 1984-02-15
SE8400821L true SE8400821L (en) 1984-08-17

Family

ID=10538045

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8400821A SE8400821L (en) 1983-02-16 1984-02-15 DECKBYGGNADSMASKIN

Country Status (9)

Country Link
JP (1) JPS59164125A (en)
AU (1) AU2401684A (en)
DE (1) DE3405189A1 (en)
FI (1) FI840560A (en)
FR (1) FR2540784A1 (en)
GB (1) GB8304196D0 (en)
NZ (1) NZ207035A (en)
SE (1) SE8400821L (en)
ZA (1) ZA84742B (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB131311A (en) * 1918-08-15
US1982860A (en) * 1931-12-24 1934-12-04 Fisk Rubber Corp Manufacture of pneumatic tire casings
GB1084195A (en) * 1963-08-31
FR1510912A (en) * 1966-11-15 1968-01-26 Curving drum for making tire casings
FR2193706A1 (en) * 1972-07-26 1974-02-22 Olier Ets Tyre building drum - with open hollow crown, support hub, armson crown, and segments supported radially by inflatable membrane

Also Published As

Publication number Publication date
FI840560A (en) 1984-08-17
FR2540784A1 (en) 1984-08-17
FI840560A0 (en) 1984-02-13
JPS59164125A (en) 1984-09-17
DE3405189A1 (en) 1984-08-16
GB8304196D0 (en) 1983-03-23
ZA84742B (en) 1985-04-24
NZ207035A (en) 1986-02-21
SE8400821D0 (en) 1984-02-15
AU2401684A (en) 1984-08-23

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NAV Patent application has lapsed

Ref document number: 8400821-8

Effective date: 19880901

Ref document number: 8304196-2