SE8400821L - DECKBYGGNADSMASKIN - Google Patents
DECKBYGGNADSMASKINInfo
- 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
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.
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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)
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 |
-
1983
- 1983-02-16 GB GB838304196A patent/GB8304196D0/en active Pending
-
1984
- 1984-02-01 ZA ZA84742A patent/ZA84742B/en unknown
- 1984-02-02 AU AU24016/84A patent/AU2401684A/en not_active Abandoned
- 1984-02-03 NZ NZ207035A patent/NZ207035A/en unknown
- 1984-02-09 FR FR8401991A patent/FR2540784A1/en active Pending
- 1984-02-13 FI FI840560A patent/FI840560A/en not_active Application Discontinuation
- 1984-02-14 DE DE19843405189 patent/DE3405189A1/en not_active Withdrawn
- 1984-02-15 SE SE8400821A patent/SE8400821L/en not_active Application Discontinuation
- 1984-02-16 JP JP59027975A patent/JPS59164125A/en active Pending
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 8400821-8 Effective date: 19880901 Ref document number: 8304196-2 |