IE36123L - Truck tyres, treads - Google Patents

Truck tyres, treads

Info

Publication number
IE36123L
IE36123L IE720242A IE24272A IE36123L IE 36123 L IE36123 L IE 36123L IE 720242 A IE720242 A IE 720242A IE 24272 A IE24272 A IE 24272A IE 36123 L IE36123 L IE 36123L
Authority
IE
Ireland
Prior art keywords
tread
breaker
tyre
zig
carcass
Prior art date
Application number
IE720242A
Other versions
IE36123B1 (en
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
Publication of IE36123L publication Critical patent/IE36123L/en
Publication of IE36123B1 publication Critical patent/IE36123B1/en

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

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. [GB1388853A]
IE242/72A 1971-03-11 1972-02-28 Improvements in or relating to pneumatic tyres IE36123B1 (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
IE36123L true IE36123L (en) 1972-09-11
IE36123B1 IE36123B1 (en) 1976-08-18

Family

ID=9818066

Family Applications (1)

Application Number Title Priority Date Filing Date
IE242/72A IE36123B1 (en) 1971-03-11 1972-02-28 Improvements in or relating to 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
CA961390A (en) 1975-01-21
DE2211717A1 (en) 1972-09-14
MY7600215A (en) 1976-12-31
ES400636A1 (en) 1975-01-16
ZA721401B (en) 1972-11-29
BE780554A (en) 1972-07-03
IE36123B1 (en) 1976-08-18
GB1388853A (en) 1975-03-26
FR2128766B1 (en) 1976-12-03
ATA205972A (en) 1977-09-15
AU468129B2 (en) 1973-09-13
TR16872A (en) 1973-09-01
SE394870B (en) 1977-07-18
FR2128766A1 (en) 1972-10-20
AU3965472A (en) 1973-09-13
IT953428B (en) 1973-08-10
AT343496B (en) 1978-05-26

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