FR2195534A1 - Puncture proof pneumatic tyres - incorporating several independent inner bladders to reduce the effect of a local puncture - Google Patents

Puncture proof pneumatic tyres - incorporating several independent inner bladders to reduce the effect of a local puncture

Info

Publication number
FR2195534A1
FR2195534A1 FR7229182A FR7229182A FR2195534A1 FR 2195534 A1 FR2195534 A1 FR 2195534A1 FR 7229182 A FR7229182 A FR 7229182A FR 7229182 A FR7229182 A FR 7229182A FR 2195534 A1 FR2195534 A1 FR 2195534A1
Authority
FR
France
Prior art keywords
bladders
puncture
profile
pneumatic tyres
incorporating several
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
FR7229182A
Other languages
French (fr)
Other versions
FR2195534B1 (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.)
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 FR7229182A priority Critical patent/FR2195534A1/en
Publication of FR2195534A1 publication Critical patent/FR2195534A1/en
Application granted granted Critical
Publication of FR2195534B1 publication Critical patent/FR2195534B1/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
    • B60C5/20—Inflatable pneumatic tyres or inner tubes having multiple separate inflatable chambers
    • B60C5/24—Inflatable pneumatic tyres or inner tubes having multiple separate inflatable chambers the walls of the chambers extending transversely of the tyre
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/02—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of crude rubber, gutta-percha, or similar substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

Pneumatic tyres incorporating several inflatable bladders with individual valves and an undulating cross section which can extend to compensate for the collapse of an adjacent bladder and thus continue to support the casing profile. Bladders may be made by pre moulding an undulating tubular profile between a split mould and a mandrel, sticking prefabricated end caps and an inlet tube on to the profile, and completing vulcanisation in a female mould using internal hydrostatic pressure. The fluid inlet tube subsequently serves as the valve seat. For mfr. of tyre which will deflate progressively and which can be used to continue the journey with little or no permanent damage to the casing. Bladders are individually replaceable, take up less less space than a spare tyre. The bladders are adaptable to suit casings of various sizes by dilation or by varying the numbers used thus reducing garage stock space and variety for replacement sizes.
FR7229182A 1972-08-11 1972-08-11 Puncture proof pneumatic tyres - incorporating several independent inner bladders to reduce the effect of a local puncture Granted FR2195534A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7229182A FR2195534A1 (en) 1972-08-11 1972-08-11 Puncture proof pneumatic tyres - incorporating several independent inner bladders to reduce the effect of a local puncture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7229182A FR2195534A1 (en) 1972-08-11 1972-08-11 Puncture proof pneumatic tyres - incorporating several independent inner bladders to reduce the effect of a local puncture

Publications (2)

Publication Number Publication Date
FR2195534A1 true FR2195534A1 (en) 1974-03-08
FR2195534B1 FR2195534B1 (en) 1974-10-25

Family

ID=9103206

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7229182A Granted FR2195534A1 (en) 1972-08-11 1972-08-11 Puncture proof pneumatic tyres - incorporating several independent inner bladders to reduce the effect of a local puncture

Country Status (1)

Country Link
FR (1) FR2195534A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020150A1 (en) * 1979-06-02 1980-12-10 Toyo Boseki Kabushiki Kaisha Safety tires for automobiles
US8281833B1 (en) * 2004-05-21 2012-10-09 Rumbaugh Gary L Tire assembly with low-friction interior

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR767423A (en) * 1934-07-16
FR1289424A (en) * 1960-01-18 1962-04-06 Improvements to inner tubes for all vehicles
FR2115907A5 (en) * 1970-11-23 1972-07-07 Dunlop Holdings Ltd

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR767423A (en) * 1934-07-16
FR1289424A (en) * 1960-01-18 1962-04-06 Improvements to inner tubes for all vehicles
FR2115907A5 (en) * 1970-11-23 1972-07-07 Dunlop Holdings Ltd

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020150A1 (en) * 1979-06-02 1980-12-10 Toyo Boseki Kabushiki Kaisha Safety tires for automobiles
US8281833B1 (en) * 2004-05-21 2012-10-09 Rumbaugh Gary L Tire assembly with low-friction interior

Also Published As

Publication number Publication date
FR2195534B1 (en) 1974-10-25

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Legal Events

Date Code Title Description
ST Notification of lapse