GB1255952A - Improvements in or relating to pneumatic tyres - Google Patents

Improvements in or relating to pneumatic tyres

Info

Publication number
GB1255952A
GB1255952A GB177068A GB177068A GB1255952A GB 1255952 A GB1255952 A GB 1255952A GB 177068 A GB177068 A GB 177068A GB 177068 A GB177068 A GB 177068A GB 1255952 A GB1255952 A GB 1255952A
Authority
GB
United Kingdom
Prior art keywords
tread
layer
rubber composition
radially
solely
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
GB177068A
Inventor
John Michael Riches
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.)
Dunlop Holdings Ltd
Original Assignee
Dunlop Holdings Ltd
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 Dunlop Holdings Ltd filed Critical Dunlop Holdings Ltd
Priority to GB177068A priority Critical patent/GB1255952A/en
Priority to IE3469A priority patent/IE32613B1/en
Priority to DE19691901448 priority patent/DE1901448A1/en
Priority to FR6900371A priority patent/FR2000207A1/fr
Publication of GB1255952A publication Critical patent/GB1255952A/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
    • 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
    • B60C1/0016—Compositions of the tread
    • 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
    • B60C11/0041—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers
    • B60C11/005—Tyre tread bands; Tread patterns; Anti-skid inserts comprising different tread rubber layers with cap and base layers
    • 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
    • B60C11/14—Anti-skid inserts, e.g. vulcanised into the tread band
    • B60C11/18—Anti-skid inserts, e.g. vulcanised into the tread band of strip form, e.g. metallic combs, rubber strips of different wear resistance

Landscapes

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

Abstract

1,255,952. Pneumatic tyres. DUNLOP HOLDINGS Ltd. 9 Jan., 1969 [12 Jan., 1968], No. 1770/68. Heading B7C. To provide improved wet grip when in a worn state a pneumatic tyre comprises in the unworn state a tread 1 which has a radially outermost layer 3 of abrasion resistant tread rubber composition, an intermediate layer 4 of a second rubber composition which has a higher braking coefficient on wet surfaces than that of the composition of layer 3, and a radially innermost sub-tread 5 of rubber composition having a lower hysteresis value than the remainder of the tread rubber. The tread 1 has circumferentially extending grooves 2 and the layer 4 undulates to extend both radially inwardly of the groove bases, and radially outwardly between the grooves a distance of up to 50% of the groove depth. In modifications, the layer 4 may be disposed solely in one or both tread shoulders 9, or solely in the crown region 8, and the subtread 5 may be disposed solely in the tread shoulder regions.
GB177068A 1968-01-12 1968-01-12 Improvements in or relating to pneumatic tyres Expired GB1255952A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB177068A GB1255952A (en) 1968-01-12 1968-01-12 Improvements in or relating to pneumatic tyres
IE3469A IE32613B1 (en) 1968-01-12 1969-01-13 Improvements in or relating to pneumatic tyres
DE19691901448 DE1901448A1 (en) 1968-01-12 1969-01-13 tire
FR6900371A FR2000207A1 (en) 1968-01-12 1969-01-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB177068A GB1255952A (en) 1968-01-12 1968-01-12 Improvements in or relating to pneumatic tyres

Publications (1)

Publication Number Publication Date
GB1255952A true GB1255952A (en) 1971-12-08

Family

ID=9727682

Family Applications (1)

Application Number Title Priority Date Filing Date
GB177068A Expired GB1255952A (en) 1968-01-12 1968-01-12 Improvements in or relating to pneumatic tyres

Country Status (4)

Country Link
DE (1) DE1901448A1 (en)
FR (1) FR2000207A1 (en)
GB (1) GB1255952A (en)
IE (1) IE32613B1 (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4381810A (en) * 1981-05-22 1983-05-03 The Goodyear Tire & Rubber Company Tire with dual tread compound
US5595619A (en) * 1992-10-14 1997-01-21 Sumitomo Rubber Industries, Ltd. Pneumatic tire including shoulder parts
US5688342A (en) * 1993-12-27 1997-11-18 Sumitomo Rubber Industries, Ltd. Pneumatic tire having ground contacting area
US5810953A (en) * 1992-10-14 1998-09-22 Sumitomo Rubber Industries, Ltd. Pneumatic tire including two grooves and two rubber parts
US6095217A (en) * 1996-07-11 2000-08-01 Bridgestone Corporation Pneumatic tire including cap layer and base layer
US6247512B1 (en) 1996-09-03 2001-06-19 Michelin Recherche Et Technique S.A. Tire having tread portion with rubber to control wear
EP1236587A2 (en) * 2001-03-02 2002-09-04 Continental Aktiengesellschaft Vehicle tyre with an asymmetric tread
US7028734B2 (en) 2003-06-24 2006-04-18 The Goodyear Tire & Rubber Company Truck tire with cap/base construction tread
FR2886215A1 (en) * 2005-05-24 2006-12-01 Michelin Soc Tech PNEUMATIC FOR TWO WHEELS
EP2452834A3 (en) * 2010-11-10 2014-06-11 The Goodyear Tire & Rubber Company Passenger tire having low rolling resistance with improved wet traction and treadwear
US20140332132A1 (en) * 2011-11-29 2014-11-13 Compagnie Generale Des Establissements Michelin Tire comprising a tread made up of several elastomeric compounds
US9022084B2 (en) 2010-11-10 2015-05-05 The Goodyear Tire & Rubber Company Passenger tire having low rolling resistance with improved wet traction and treadwear
US20150314651A1 (en) * 2012-12-10 2015-11-05 Compagnie Generale Des Etablissements Michelin Tire comprising a tread made up of several elastomeric compounds
US20150314650A1 (en) * 2012-12-10 2015-11-05 Compagnie Generale Des Etablissements Michelin Tire comprising a tread made up of several elastomeric compounds
US20170008345A1 (en) * 2012-12-10 2017-01-12 Michelin Recherche Et Technique, S.A. Tire comprising a tread made up of several elastomeric compounds
CN108202564A (en) * 2016-12-19 2018-06-26 东洋橡胶工业株式会社 Pneumatic tire
US10279629B2 (en) * 2014-05-08 2019-05-07 Bridgestone Corporation Tire

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS582845B2 (en) * 1979-01-24 1983-01-19 株式会社ブリヂストン Radial tire for passenger cars with low rolling resistance and anti-slip properties
JPS584642B2 (en) * 1979-03-23 1983-01-27 横浜ゴム株式会社 radial tires
CA1130709A (en) * 1979-10-01 1982-08-31 David A. Kindry Pneumatic tire having modified tread
IT1120713B (en) * 1979-12-12 1986-03-26 Pirelli TIRE FOR MOTOR VEHICLES HAVING LOW POWER ABSORPTION AND HIGH DIRECTIONABILITY
DE3008713A1 (en) * 1980-03-07 1981-09-24 Continental Gummi-Werke Ag, 3000 Hannover VEHICLE TIRES
DE3377205D1 (en) * 1982-06-09 1988-08-04 Goodyear Tire & Rubber Tread
DE3223960A1 (en) * 1982-06-26 1983-12-29 Continental Gummi-Werke Ag, 3000 Hannover VEHICLE TIRES
DE3223959A1 (en) * 1982-06-26 1983-12-29 Continental Gummi-Werke Ag, 3000 Hannover VEHICLE TIRES FOR WINTER USE
US4478266A (en) * 1982-09-17 1984-10-23 The Goodyear Tire & Rubber Company Composite tread having good traction and reduced rolling resistance upon wear
AT376401B (en) * 1982-10-20 1984-11-26 Semperit Ag VEHICLE AIR TIRE WITH A RADIAL CARCASE, METHOD FOR THE PRODUCTION OF SUCH A TIRE AND METHOD AND DEVICE FOR THE PRODUCTION OF A TIRE PART FOR SUCH A TIRE
ZA841566B (en) * 1983-03-15 1984-10-31 Goodyear Tire & Rubber Fuel efficient tire
DE4235419A1 (en) * 1992-10-21 1994-04-28 Continental Ag Vehicle tires with treads
DE4419299A1 (en) * 1994-06-01 1995-12-07 Sp Reifenwerke Gmbh Pneumatic vehicle tires
DE19644538C1 (en) * 1996-10-26 1998-09-03 Continental Ag Pneumatic vehicle tires

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4381810A (en) * 1981-05-22 1983-05-03 The Goodyear Tire & Rubber Company Tire with dual tread compound
US5595619A (en) * 1992-10-14 1997-01-21 Sumitomo Rubber Industries, Ltd. Pneumatic tire including shoulder parts
US5810953A (en) * 1992-10-14 1998-09-22 Sumitomo Rubber Industries, Ltd. Pneumatic tire including two grooves and two rubber parts
US5688342A (en) * 1993-12-27 1997-11-18 Sumitomo Rubber Industries, Ltd. Pneumatic tire having ground contacting area
US6095217A (en) * 1996-07-11 2000-08-01 Bridgestone Corporation Pneumatic tire including cap layer and base layer
US6247512B1 (en) 1996-09-03 2001-06-19 Michelin Recherche Et Technique S.A. Tire having tread portion with rubber to control wear
EP1236587A2 (en) * 2001-03-02 2002-09-04 Continental Aktiengesellschaft Vehicle tyre with an asymmetric tread
EP1236587A3 (en) * 2001-03-02 2003-08-06 Continental Aktiengesellschaft Vehicle tyre with an asymmetric tread
US7028734B2 (en) 2003-06-24 2006-04-18 The Goodyear Tire & Rubber Company Truck tire with cap/base construction tread
FR2886215A1 (en) * 2005-05-24 2006-12-01 Michelin Soc Tech PNEUMATIC FOR TWO WHEELS
EP2452834A3 (en) * 2010-11-10 2014-06-11 The Goodyear Tire & Rubber Company Passenger tire having low rolling resistance with improved wet traction and treadwear
US9022084B2 (en) 2010-11-10 2015-05-05 The Goodyear Tire & Rubber Company Passenger tire having low rolling resistance with improved wet traction and treadwear
US20140332132A1 (en) * 2011-11-29 2014-11-13 Compagnie Generale Des Establissements Michelin Tire comprising a tread made up of several elastomeric compounds
US10308073B2 (en) * 2011-11-29 2019-06-04 Compagnie Generale Des Etablissements Michelin Tire comprising a tread made up of several elastomeric compounds
US20150314651A1 (en) * 2012-12-10 2015-11-05 Compagnie Generale Des Etablissements Michelin Tire comprising a tread made up of several elastomeric compounds
US20150314650A1 (en) * 2012-12-10 2015-11-05 Compagnie Generale Des Etablissements Michelin Tire comprising a tread made up of several elastomeric compounds
US20170008345A1 (en) * 2012-12-10 2017-01-12 Michelin Recherche Et Technique, S.A. Tire comprising a tread made up of several elastomeric compounds
US10000091B2 (en) * 2012-12-10 2018-06-19 Compagnie Generale Des Etablissements Michelin Tire comprising a tread made up of several elastomeric compounds
US10023011B2 (en) * 2012-12-10 2018-07-17 Compagnie Generale Des Etablissements Michelin Tire comprising a tread made up of several elastomeric compounds
US10099513B2 (en) * 2012-12-10 2018-10-16 Compagnie Generale Des Etablissements Michelin Tire comprising a tread made up of several elastomeric compounds
US10279629B2 (en) * 2014-05-08 2019-05-07 Bridgestone Corporation Tire
CN108202564A (en) * 2016-12-19 2018-06-26 东洋橡胶工业株式会社 Pneumatic tire

Also Published As

Publication number Publication date
FR2000207A1 (en) 1969-08-29
IE32613L (en) 1969-07-12
DE1901448A1 (en) 1969-08-28
IE32613B1 (en) 1973-10-03

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