FR2445770A2 - Geometric limits for internal radius of unreinforced tyre sidewall - to qualify permissible variations from the nominal surface profile - Google Patents

Geometric limits for internal radius of unreinforced tyre sidewall - to qualify permissible variations from the nominal surface profile

Info

Publication number
FR2445770A2
FR2445770A2 FR7900376A FR7900376A FR2445770A2 FR 2445770 A2 FR2445770 A2 FR 2445770A2 FR 7900376 A FR7900376 A FR 7900376A FR 7900376 A FR7900376 A FR 7900376A FR 2445770 A2 FR2445770 A2 FR 2445770A2
Authority
FR
France
Prior art keywords
unreinforced
qualify
surface profile
tyre
internal radius
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
FR7900376A
Other languages
French (fr)
Other versions
FR2445770B2 (en
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.)
Compagnie Generale des Etablissements Michelin SCA
Original Assignee
Compagnie Generale des Etablissements Michelin SCA
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 Compagnie Generale des Etablissements Michelin SCA filed Critical Compagnie Generale des Etablissements Michelin SCA
Priority to FR7900376A priority Critical patent/FR2445770A2/en
Publication of FR2445770A2 publication Critical patent/FR2445770A2/en
Application granted granted Critical
Publication of FR2445770B2 publication Critical patent/FR2445770B2/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
    • B60C5/00—Inflatable pneumatic tyres or inner tubes
    • B60C5/01—Inflatable pneumatic tyres or inner tubes without substantial cord reinforcement, e.g. cordless tyres, cast tyres
    • 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
    • B60C3/00—Tyres characterised by the transverse section
    • B60C3/04—Tyres characterised by the transverse section characterised by the relative dimensions of the section, e.g. low profile

Landscapes

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

Abstract

The parent patent described the profile of a tyre sidewall made of unreinforced rubber so that the radius of curvature (Pm) of the merdian part of the internal face was defined by the equation (a) Pm = 1/2 where y is the radial distance of a point on the surface from the axis of revolution of the tyre, Re is the radius at the point where the internal surface is parallel to the equatorial plant of the tyre. Phi is the angle between the tangent to the surface at y and a line parallel to the axis of revolution. This addition defines limits in equations (b) and (c) Pm may vary, without unacceptable deformation upon inflation.
FR7900376A 1979-01-05 1979-01-05 Geometric limits for internal radius of unreinforced tyre sidewall - to qualify permissible variations from the nominal surface profile Granted FR2445770A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7900376A FR2445770A2 (en) 1979-01-05 1979-01-05 Geometric limits for internal radius of unreinforced tyre sidewall - to qualify permissible variations from the nominal surface profile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7900376A FR2445770A2 (en) 1979-01-05 1979-01-05 Geometric limits for internal radius of unreinforced tyre sidewall - to qualify permissible variations from the nominal surface profile

Publications (2)

Publication Number Publication Date
FR2445770A2 true FR2445770A2 (en) 1980-08-01
FR2445770B2 FR2445770B2 (en) 1982-11-12

Family

ID=9220541

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7900376A Granted FR2445770A2 (en) 1979-01-05 1979-01-05 Geometric limits for internal radius of unreinforced tyre sidewall - to qualify permissible variations from the nominal surface profile

Country Status (1)

Country Link
FR (1) FR2445770A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2121847A1 (en) * 1971-01-16 1972-08-25 Dunlop Ltd Fabric-less pneumatic tyres - with expansion resistant elastic carcase
FR2314061A1 (en) * 1975-06-12 1977-01-07 Michelin & Cie NON-REINFORCED TIRE COVERS, WITH REINFORCED SHOULDERS
FR2314059A1 (en) * 1975-06-12 1977-01-07 Michelin & Cie UNREINFORCED TIRE ENCLOSURES
FR2314060A1 (en) * 1975-06-12 1977-01-07 Michelin & Cie IMPROVEMENTS TO TIRE PACKAGES
FR2327109A1 (en) * 1975-10-08 1977-05-06 Firestone Tire & Rubber Co PNEUMATIC

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2121847A1 (en) * 1971-01-16 1972-08-25 Dunlop Ltd Fabric-less pneumatic tyres - with expansion resistant elastic carcase
FR2314061A1 (en) * 1975-06-12 1977-01-07 Michelin & Cie NON-REINFORCED TIRE COVERS, WITH REINFORCED SHOULDERS
FR2314059A1 (en) * 1975-06-12 1977-01-07 Michelin & Cie UNREINFORCED TIRE ENCLOSURES
FR2314060A1 (en) * 1975-06-12 1977-01-07 Michelin & Cie IMPROVEMENTS TO TIRE PACKAGES
FR2327109A1 (en) * 1975-10-08 1977-05-06 Firestone Tire & Rubber Co PNEUMATIC

Also Published As

Publication number Publication date
FR2445770B2 (en) 1982-11-12

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