FR2375061A2 - Tyre carcass bead pads of complementary hardnesses and shapes - involving fitted pairs of filled and unfilled rubber hoops - Google Patents

Tyre carcass bead pads of complementary hardnesses and shapes - involving fitted pairs of filled and unfilled rubber hoops

Info

Publication number
FR2375061A2
FR2375061A2 FR7627716A FR7627716A FR2375061A2 FR 2375061 A2 FR2375061 A2 FR 2375061A2 FR 7627716 A FR7627716 A FR 7627716A FR 7627716 A FR7627716 A FR 7627716A FR 2375061 A2 FR2375061 A2 FR 2375061A2
Authority
FR
France
Prior art keywords
pad
filled
involving
unfilled
hardnesses
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
FR7627716A
Other languages
French (fr)
Other versions
FR2375061B2 (en
Inventor
Henri Jean Mirtain
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.)
Uniroyal SA
Original Assignee
Uniroyal SA
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 Uniroyal SA filed Critical Uniroyal SA
Priority to FR7627716A priority Critical patent/FR2375061A2/en
Publication of FR2375061A2 publication Critical patent/FR2375061A2/en
Application granted granted Critical
Publication of FR2375061B2 publication Critical patent/FR2375061B2/fr
Granted 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
    • B60C15/06—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
    • B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof

Landscapes

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

Abstract

The parent patent described tyre carcasses involving a relatively inextensible fabric ply wrapped around the beads and enclosing two rubber pads, one of which had a hardness of 85-95 degrees Shore A and was fibre-filled, the other pad being unfilled and of an (unspecified) specific hardness. This addition specifies a hardness range of 70-95 degrees Shore A for the unfilled pad. The ranges for the ratios for n/H is extended to 0.55-0.95, and the ratio for m/H is defined to be 0.15-0.35, pref. 0.22-0.28. Further, this addition describes the section of inner, filled pad as tapering from a broad base adjacent to the bead to a peak radially higher up the side wall. The section of the second pad widens alongside the reducing section of the first pad and then narrows to a peak radially higher up the sidewall. Specifically, the carcass ply is made of aromatic polyamide fabric, laid with the cord axes at an angle of 15-60 degrees to the tangent to the bead rim.
FR7627716A 1976-09-15 1976-09-15 Tyre carcass bead pads of complementary hardnesses and shapes - involving fitted pairs of filled and unfilled rubber hoops Granted FR2375061A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7627716A FR2375061A2 (en) 1976-09-15 1976-09-15 Tyre carcass bead pads of complementary hardnesses and shapes - involving fitted pairs of filled and unfilled rubber hoops

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7627716A FR2375061A2 (en) 1976-09-15 1976-09-15 Tyre carcass bead pads of complementary hardnesses and shapes - involving fitted pairs of filled and unfilled rubber hoops

Publications (2)

Publication Number Publication Date
FR2375061A2 true FR2375061A2 (en) 1978-07-21
FR2375061B2 FR2375061B2 (en) 1979-07-20

Family

ID=9177711

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7627716A Granted FR2375061A2 (en) 1976-09-15 1976-09-15 Tyre carcass bead pads of complementary hardnesses and shapes - involving fitted pairs of filled and unfilled rubber hoops

Country Status (1)

Country Link
FR (1) FR2375061A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541467A (en) * 1981-11-24 1985-09-17 Bridgestone Tire Company Limited Heavy duty pneumatic radial tires

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2090158A1 (en) * 1970-05-20 1972-01-14 Goodyear Tire & Rubber
FR2111886A1 (en) * 1970-10-28 1972-06-09 Pirelli

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2090158A1 (en) * 1970-05-20 1972-01-14 Goodyear Tire & Rubber
FR2111886A1 (en) * 1970-10-28 1972-06-09 Pirelli

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541467A (en) * 1981-11-24 1985-09-17 Bridgestone Tire Company Limited Heavy duty pneumatic radial tires

Also Published As

Publication number Publication date
FR2375061B2 (en) 1979-07-20

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Legal Events

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TP Transmission of property