GB1485485A - Pneumatic tyres - Google Patents

Pneumatic tyres

Info

Publication number
GB1485485A
GB1485485A GB4183974A GB4183974A GB1485485A GB 1485485 A GB1485485 A GB 1485485A GB 4183974 A GB4183974 A GB 4183974A GB 4183974 A GB4183974 A GB 4183974A GB 1485485 A GB1485485 A GB 1485485A
Authority
GB
United Kingdom
Prior art keywords
layers
cords
turn
layer
degrees
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
GB4183974A
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.)
Industrie Pirelli SpA
Pirelli and C SpA
Original Assignee
Industrie Pirelli SpA
Pirelli SpA
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 Industrie Pirelli SpA, Pirelli SpA filed Critical Industrie Pirelli SpA
Publication of GB1485485A publication Critical patent/GB1485485A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
    • B60C15/0081—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion the carcass plies folded around or between more than one bead core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
    • B60C15/0603—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the bead filler or apex
    • B60C15/0607—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the bead filler or apex comprising several parts, e.g. made of different rubbers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

1485485 Pneumatic tyres INDUSTRIE PIRELLI SpA 26 Sept 1974 [28 Sept 1973] 41839/74 Heading B7C In a radial tyre the lower sidewall regions are each reinforced by two annular layers of parallel cord fabric; said layers diverge in the radially outward direction, the cords of the layers make an angle of between 20 and 60 degrees with a circumferential direction, and the cords of one layer cross those of the other. The layers 6, 7 may be formed by folding a single ply 5 (Fig. 1) and in this case may be positioned axially outwardly of the carcass reinforcement turn up 3 or between the turn up and apex strip 4. In an alternative embodiment (Fig. 2), the layers 21, 22 are separate and the two layers may be positioned relative to the turn up 23 as specified above or the turn up may be positioned, as illustrated, between the layers. The filler between the layers is a rubber compound of hardness 60-90 degrees Shore, and the apex strip 4 is a rubber compound of hardness 70 degrees Shore. In the Fig. 2 embodiment, the cords of the axially outer layer may have a larger cord angle. The layer 21 may have metal cords while the layer 22 has textile cords.
GB4183974A 1973-09-28 1974-09-26 Pneumatic tyres Expired GB1485485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2948973A IT995522B (en) 1973-09-28 1973-09-28 IMPROVEMENTS TO THE HEELS OF RADIAL CARCASS TIRES

Publications (1)

Publication Number Publication Date
GB1485485A true GB1485485A (en) 1977-09-14

Family

ID=11227081

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4183974A Expired GB1485485A (en) 1973-09-28 1974-09-26 Pneumatic tyres

Country Status (12)

Country Link
JP (1) JPS5076701A (en)
AR (1) AR202576A1 (en)
BE (1) BE820464A (en)
CA (1) CA1009552A (en)
DE (1) DE2445886A1 (en)
DK (1) DK507874A (en)
FR (1) FR2246406B1 (en)
GB (1) GB1485485A (en)
IE (1) IE40622B1 (en)
IT (1) IT995522B (en)
LU (1) LU71018A1 (en)
NL (1) NL7412785A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053997A1 (en) * 1980-12-05 1982-06-16 The Goodyear Tire & Rubber Company A pneumatic tire and method for making same
US4854361A (en) * 1986-06-24 1989-08-08 The Goodyear Tire & Rubber Company Pneumatic tires
US4922985A (en) * 1986-06-24 1990-05-08 The Goodyear Tire & Rubber Company Tire and rim assembly
US5379819A (en) * 1990-11-28 1995-01-10 Sumitomo Rubber Industries, Ltd. Pneumatic tire with reinforced bead portions
EP0810106A2 (en) * 1996-05-28 1997-12-03 Sumitomo Rubber Industries Limited Heavy duty radial tyre
WO2014019939A1 (en) * 2012-08-03 2014-02-06 Compagnie Generale Des Etablissements Michelin Tyre with improved bead
RU2588559C1 (en) * 2012-08-03 2016-06-27 Компани Женераль Дез Этаблиссман Мишлен Tyre with perfected bead

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1039990B (en) * 1975-07-23 1979-12-10 Pirelli IMPROVEMENT ON THE HEELS OF RADIAL CARCASS TIRES
JPS579121Y2 (en) * 1975-10-31 1982-02-22
JPS52153503A (en) * 1976-06-17 1977-12-20 Toyo Tire & Rubber Co Ltd Pneumatic tire
DE2828241A1 (en) * 1978-06-28 1980-01-03 Uniroyal Gmbh HIGH-STRENGTH STEEL CORD BELT WITH ADHESIVE RUBBER MIX IN THE TIRE BULB
FR2512748A1 (en) * 1981-09-14 1983-03-18 Dunlop Sa HEXAGON RADIALE CARRIAGE PNEUMATIC ENVELOPE PROTECTED BY A PROFILE OF HARD GUM
JPS60248410A (en) * 1984-05-25 1985-12-09 Yokohama Rubber Co Ltd:The Pneumatic radial tire
JPS638007A (en) * 1986-06-24 1988-01-13 ザ　グツドイア−　タイヤ　アンド　ラバ−　コンパニ− Pneumatic tire
JPH02169309A (en) * 1988-12-22 1990-06-29 Bridgestone Corp Radial tire for construction vehicle
US5526863A (en) * 1994-04-18 1996-06-18 Michelin Recherche Et Technique S.A. Tire with reduced bead mass
JP5633217B2 (en) * 2010-07-09 2014-12-03 横浜ゴム株式会社 Pneumatic radial tire

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053997A1 (en) * 1980-12-05 1982-06-16 The Goodyear Tire & Rubber Company A pneumatic tire and method for making same
US4854361A (en) * 1986-06-24 1989-08-08 The Goodyear Tire & Rubber Company Pneumatic tires
US4922985A (en) * 1986-06-24 1990-05-08 The Goodyear Tire & Rubber Company Tire and rim assembly
US5379819A (en) * 1990-11-28 1995-01-10 Sumitomo Rubber Industries, Ltd. Pneumatic tire with reinforced bead portions
EP0810106A2 (en) * 1996-05-28 1997-12-03 Sumitomo Rubber Industries Limited Heavy duty radial tyre
EP0810106A3 (en) * 1996-05-28 1999-06-02 Sumitomo Rubber Industries Limited Heavy duty radial tyre
WO2014019939A1 (en) * 2012-08-03 2014-02-06 Compagnie Generale Des Etablissements Michelin Tyre with improved bead
FR2994127A1 (en) * 2012-08-03 2014-02-07 Michelin & Cie PNEUMATIC HAVING AN IMPROVED BOURRELET.
CN104520121A (en) * 2012-08-03 2015-04-15 米其林集团总公司 Tyre with improved bead
RU2588559C1 (en) * 2012-08-03 2016-06-27 Компани Женераль Дез Этаблиссман Мишлен Tyre with perfected bead
US9662942B2 (en) 2012-08-03 2017-05-30 Compagnie Generale Des Etablissements Michelin Tire with improved bead

Also Published As

Publication number Publication date
FR2246406B1 (en) 1976-12-31
DK507874A (en) 1975-05-12
IT995522B (en) 1975-11-20
JPS5076701A (en) 1975-06-23
CA1009552A (en) 1977-05-03
NL7412785A (en) 1975-04-02
DE2445886A1 (en) 1975-04-10
AR202576A1 (en) 1975-06-24
AU7344874A (en) 1976-03-25
BE820464A (en) 1975-01-16
FR2246406A1 (en) 1975-05-02
IE40622B1 (en) 1979-07-18
IE40622L (en) 1975-03-28
LU71018A1 (en) 1975-04-17

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee