GB1388853A - Pneumatic tyres - Google Patents

Pneumatic tyres

Info

Publication number
GB1388853A
GB1388853A GB663671A GB663671A GB1388853A GB 1388853 A GB1388853 A GB 1388853A GB 663671 A GB663671 A GB 663671A GB 663671 A GB663671 A GB 663671A GB 1388853 A GB1388853 A GB 1388853A
Authority
GB
United Kingdom
Prior art keywords
tread
breaker
tyre
zig
carcass
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
GB663671A
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 Ltd
Original Assignee
Dunlop 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 Ltd filed Critical Dunlop Ltd
Priority to GB663671A priority Critical patent/GB1388853A/en
Priority to IE242/72A priority patent/IE36123B1/en
Priority to ZA721401A priority patent/ZA721401B/en
Priority to IT2130872A priority patent/IT953428B/en
Priority to CA136,019A priority patent/CA961390A/en
Priority to AU39654/72A priority patent/AU468129B2/en
Priority to SE7202966A priority patent/SE394870B/en
Priority to FR7208187A priority patent/FR2128766B1/fr
Priority to TR16872A priority patent/TR16872A/en
Priority to DE19722211717 priority patent/DE2211717A1/en
Priority to AT205972A priority patent/AT343496B/en
Priority to BE780554A priority patent/BE780554A/en
Priority to ES400636A priority patent/ES400636A1/en
Publication of GB1388853A publication Critical patent/GB1388853A/en
Priority to MY1976215A priority patent/MY7600215A/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
    • B60C11/03—Tread patterns
    • B60C11/0306—Patterns comprising block rows or discontinuous ribs
    • 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
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/03—Tread patterns
    • B60C11/0306—Patterns comprising block rows or discontinuous ribs
    • B60C11/0309—Patterns comprising block rows or discontinuous ribs further characterised by the groove cross-section
    • 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
    • B60C11/03—Tread patterns
    • B60C11/04—Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag
    • B60C11/042—Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag further characterised by the groove cross-section
    • 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
    • B60C11/03—Tread patterns
    • B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
    • B60C11/1204—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe
    • B60C2011/1213—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special shape of the sipe sinusoidal or zigzag at the tread surface

Landscapes

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

Abstract

1388853 Pneumatic tyres DUNLOP Ltd 28 Feb 1972 [11 March 1971] 6636/71 Heading B7C A radial-ply carcass pneumatic tyre, for heavy goods vehicles, comprises a breaker, and a bead, integral with the carcass and breaker, whose shoulder regions are each divided into circumferentially spaced blocks, e.g. 10, by substantially axial grooves, e.g. 15, connected at their inner ends by a circumferential groove, e.g. 14, such that each block extends inwardly from the associated tread edge to terminate inwardly of the closer edge of the breaker, the tyre being of any size quoted in the table below and having a tread rubber thickness (as measured between the tread ground-contacting surface and the radially outermost surface of the breaker) which is at least of the order of 15% greater than the value given in the table below for that size of tyre. Tyre size Tread rubber thickness (mm.) 7À50 Î 20 18À5 8À25 Î 20 19À5 9À00 x 20 19À5 10À00 Î 20 20À5 11À00 Î 20 23À0 12À00 Î 20 24À0 In the illustrated embodiment the tread has a central circumferential groove 13 dividing the central part of the tread into two ribs 8, 9, all the tread grooves being of zig-zag form, and axial zig-zag slots 17, 18 in the ribs and circumferential zig-zag slots, e.g. 20, in the blocks being provided. Specific examples of suitable thicknesses for the tread and of suitable widths for the substantially axial shoulder grooves are given in the Specification. The tyre carcass may consist of a single ply of steel cords and the breaker may comprise three plies of steel cords.
GB663671A 1971-03-11 1971-03-11 Pneumatic tyres Expired GB1388853A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
GB663671A GB1388853A (en) 1971-03-11 1971-03-11 Pneumatic tyres
IE242/72A IE36123B1 (en) 1971-03-11 1972-02-28 Improvements in or relating to pneumatic tyres
ZA721401A ZA721401B (en) 1971-03-11 1972-03-01 Improvements in or relating to pneumatic tyres
IT2130872A IT953428B (en) 1971-03-11 1972-03-02 PNEUMATIC TIRE FOR PRO LONG USE ON HEAVY VEHICLES FOR THE TRANSPORT OF GOODS BY ROAD
CA136,019A CA961390A (en) 1971-03-11 1972-03-02 Pneumatic tyres
AU39654/72A AU468129B2 (en) 1971-03-11 1972-03-06 Improvements in or relating to pneumatic tyres
SE7202966A SE394870B (en) 1971-03-11 1972-03-08 PNEUMATIC DECK WITH EXTRA THICK TURN
FR7208187A FR2128766B1 (en) 1971-03-11 1972-03-09
TR16872A TR16872A (en) 1971-03-11 1972-03-09 TREATMENT OF PNEUMATIC EXTERIOR TIRES OR RELATED TO THIS
DE19722211717 DE2211717A1 (en) 1971-03-11 1972-03-10 tire
AT205972A AT343496B (en) 1971-03-11 1972-03-10 TIRE
BE780554A BE780554A (en) 1971-03-11 1972-03-10 TIRE IMPROVEMENTS
ES400636A ES400636A1 (en) 1971-03-11 1972-03-10 Pneumatic tyres
MY1976215A MY7600215A (en) 1971-03-11 1976-12-31 Improvements in or relating to pneumatic tyres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB663671A GB1388853A (en) 1971-03-11 1971-03-11 Pneumatic tyres

Publications (1)

Publication Number Publication Date
GB1388853A true GB1388853A (en) 1975-03-26

Family

ID=9818066

Family Applications (1)

Application Number Title Priority Date Filing Date
GB663671A Expired GB1388853A (en) 1971-03-11 1971-03-11 Pneumatic tyres

Country Status (14)

Country Link
AT (1) AT343496B (en)
AU (1) AU468129B2 (en)
BE (1) BE780554A (en)
CA (1) CA961390A (en)
DE (1) DE2211717A1 (en)
ES (1) ES400636A1 (en)
FR (1) FR2128766B1 (en)
GB (1) GB1388853A (en)
IE (1) IE36123B1 (en)
IT (1) IT953428B (en)
MY (1) MY7600215A (en)
SE (1) SE394870B (en)
TR (1) TR16872A (en)
ZA (1) ZA721401B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54157905A (en) * 1978-06-02 1979-12-13 Toyo Tire & Rubber Co Ltd Radial tire improved in resistance to abnormal abrasion
FR2462281A1 (en) * 1979-07-30 1981-02-13 Michelin & Cie TIRE FOR ROLLING OFF ROAD
AT387190B (en) * 1986-02-05 1988-12-12 Semperit Ag VEHICLE TIRES

Also Published As

Publication number Publication date
IE36123L (en) 1972-09-11
SE394870B (en) 1977-07-18
CA961390A (en) 1975-01-21
ES400636A1 (en) 1975-01-16
DE2211717A1 (en) 1972-09-14
TR16872A (en) 1973-09-01
IE36123B1 (en) 1976-08-18
AU3965472A (en) 1973-09-13
FR2128766A1 (en) 1972-10-20
ATA205972A (en) 1977-09-15
AT343496B (en) 1978-05-26
MY7600215A (en) 1976-12-31
IT953428B (en) 1973-08-10
ZA721401B (en) 1972-11-29
FR2128766B1 (en) 1976-12-03
BE780554A (en) 1972-07-03
AU468129B2 (en) 1973-09-13

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee