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GB1372254A - Pneumatic tyres - Google Patents

Pneumatic tyres

Info

Publication number
GB1372254A
GB1372254A GB4543671A GB4543671A GB1372254A GB 1372254 A GB1372254 A GB 1372254A GB 4543671 A GB4543671 A GB 4543671A GB 4543671 A GB4543671 A GB 4543671A GB 1372254 A GB1372254 A GB 1372254A
Authority
GB
United Kingdom
Prior art keywords
tread
carcass
tyre
elastomer
strip
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
GB4543671A
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
Publication of GB1372254A publication Critical patent/GB1372254A/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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • 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)
    • B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
    • 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)
    • B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
    • B29D30/58—Applying bands of rubber treads, i.e. applying camel backs
    • 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
    • B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • 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)
    • B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
    • B29D30/44—Stretching or treating the layers before application on the drum
    • B29D2030/4437—Adjusting the dimensions of the layers
    • 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)
    • B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
    • B29D30/44—Stretching or treating the layers before application on the drum
    • B29D2030/4437—Adjusting the dimensions of the layers
    • B29D2030/4456—Adjusting the dimensions of the layers by using speed differences, e.g. between conveyors or between conveyor and drum
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0008—Tyre tread bands; Tread patterns; Anti-skid inserts characterised by the tread rubber
    • B60C2011/0016—Physical properties or dimensions
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/0008—Tyre tread bands; Tread patterns; Anti-skid inserts characterised by the tread rubber
    • B60C2011/0016—Physical properties or dimensions
    • B60C2011/0033—Thickness of the tread

Landscapes

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

Abstract

1372254 Pneumatic tyres MICHELIN & CIE 29 Sept 1971 [30 Sept 1970] 45436/71 Heading B7C An unused or retreaded pneumatic tyre has a tread made of a vulcanized mixture based on an elastomer, e.g. rubber, the elastomer being oriented in a direction parallel to the groundengaging surface of the tread and not at right angles to the circumferential direction, e.g. the circumferential direction. The orientation of the elastomer is produced by stretching the unvulcanized tread prior to or during its being wrapped around the tyre carcass during manufacture of the tyre, the stretching being effected at least in the wrapping direction and producing an extension in the wrapping direction of 75-600%. The tread may comprise a plurality of layers of the mixture each 0À1-5 mm. thick, the layers being produced either by superimposing a plurality of sheets of the mixture on the tyre carcass or by wrapping a number of convolutions of a single sheet of the mixture around the carcass. Alternatively the tread may be made from a prefabricated member of profiled cross-section and in this case the extension to which the unvulcanized tread is subjected may be greater than that desired in the finished tyre and may exceed the elastic limit. A tread of layered construction in which the elastomer is oriented in the circumferential or wrapped direction may be produced on the apparatus shown in Fig. 1, wherein a tyre carcass 1 mounted on a wheel 2 is driven at a constant circumferential speed VI by a motor 3 regulated by a feeler 4, and tread strip 10 is drawn from a supply rool 15 through a compensator 19, which allows the roll 15 to continue to supply between successive tread applications, to driving rollers 20, 21, 22 which drive the tread strips 10 at a constant speed V 0 lower than the speed V 1 of the carcass, the strip thus being stretched by an amount proportional to the ratio V 1 /V 0 at the instant of its application to the carcass. Knives 24 are provided for cutting the strip 10 and there is a spool 18 which receives fabric or polyethylene sheet interleaving the strip 10 on the spool 15.
GB4543671A 1970-09-30 1971-09-29 Pneumatic tyres Expired GB1372254A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7035449A FR2106974A5 (en) 1970-09-30 1970-09-30

Publications (1)

Publication Number Publication Date
GB1372254A true GB1372254A (en) 1974-10-30

Family

ID=9062106

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4543671A Expired GB1372254A (en) 1970-09-30 1971-09-29 Pneumatic tyres

Country Status (12)

Country Link
JP (1) JPS5121035B1 (en)
BE (1) BE773167A (en)
CA (1) CA932254A (en)
DE (1) DE2148420C3 (en)
ES (1) ES395572A1 (en)
FR (1) FR2106974A5 (en)
GB (1) GB1372254A (en)
IT (1) IT942644B (en)
LU (1) LU63972A1 (en)
NL (1) NL143484B (en)
SE (1) SE382313B (en)
ZA (1) ZA716583B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0166154A2 (en) * 1984-06-27 1986-01-02 Bschorr, Oskar, Dr. rer. nat. Balancing of the rigidity discontinuities of pneumatic-tyre profiles

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3541126A1 (en) * 1985-11-13 1987-05-14 Ihle Reifen Gmbh Method and device for applying an uncured rubber covering onto a carcass
DE19823433C1 (en) * 1998-05-26 1999-06-17 Continental Ag Application of thin rubber strip to partially vulcanised tire carcass
PL2958183T3 (en) 2013-02-18 2020-11-02 Nippon Shokubai Co., Ltd. Electrolyte solution and lithium ion secondary battery provided with same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0166154A2 (en) * 1984-06-27 1986-01-02 Bschorr, Oskar, Dr. rer. nat. Balancing of the rigidity discontinuities of pneumatic-tyre profiles
EP0166154A3 (en) * 1984-06-27 1987-05-27 Bschorr, Oskar, Dr. rer. nat. Balancing of the rigidity discontinuities of pneumatic-tyre profiles

Also Published As

Publication number Publication date
ZA716583B (en) 1972-06-28
CA932254A (en) 1973-08-21
JPS5121035B1 (en) 1976-06-29
DE2148420B2 (en) 1976-04-22
NL143484B (en) 1974-10-15
IT942644B (en) 1973-04-02
NL7112910A (en) 1972-04-05
FR2106974A5 (en) 1972-05-05
LU63972A1 (en) 1972-06-27
BE773167A (en) 1972-03-28
DE2148420C3 (en) 1980-01-10
AU3400871A (en) 1973-04-05
DE2148420A1 (en) 1972-04-06
SE382313B (en) 1976-01-26
ES395572A1 (en) 1974-10-01

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years