GB527015A - Improvements in treads for pneumatic tyres - Google Patents

Improvements in treads for pneumatic tyres

Info

Publication number
GB527015A
GB527015A GB638139A GB638139A GB527015A GB 527015 A GB527015 A GB 527015A GB 638139 A GB638139 A GB 638139A GB 638139 A GB638139 A GB 638139A GB 527015 A GB527015 A GB 527015A
Authority
GB
United Kingdom
Prior art keywords
slits
ribs
grooves
walls
tread
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
GB638139A
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 Rubber Co Ltd
Original Assignee
Dunlop Rubber Co 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 Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB638139A priority Critical patent/GB527015A/en
Priority to FR863566D priority patent/FR863566A/en
Publication of GB527015A publication Critical patent/GB527015A/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
    • B60C11/04—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
    • B60C11/01—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
    • 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
    • B60C11/12—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
    • 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
    • B60C11/1236—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special arrangements in the tread pattern
    • B60C11/125—Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes with special arrangements in the tread pattern arranged at the groove bottom
    • 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
    • B60C11/1259—Depth of the sipe
    • B60C11/1263—Depth of the sipe different within the same sipe

Landscapes

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

Abstract

527,015. Wheel tyres. DUNLOP RUBBER CO., Ltd., and ATTWOOD, J. A. Feb. 27, 1939, No. 6381. [Class 144 (ii)] A pneumatic tyre tread comprises a series of circumferential ribs 1, 2, 5 with transverse slits extending from the intervening grooves 3, 4 partially across the ribs. Along the median line of the tread, slits 6 in the rib 1 have outwardlyconvergent walls and curved bases merging into the axially-outer walls of the grooves 3. Alternating with the slits 6 are pairs of slits 9 which extend from the inner walls of the grooves 3 and present outwardly inclined walls 11 in the ribs 2. Mating with the slits 9, and extending from the outer walls of the ribs 2, are slits 12 whereby portions 15 of these ribs overhang the bases 13 of the slits 12. Similarly-overhanging , portions 24 are formed in the outermost ribs 5 by mating slits 16, 20. As shown, the slits extend into the tread beyond the bottoms of the grooves 3, 4.
GB638139A 1939-02-27 1939-02-27 Improvements in treads for pneumatic tyres Expired GB527015A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB638139A GB527015A (en) 1939-02-27 1939-02-27 Improvements in treads for pneumatic tyres
FR863566D FR863566A (en) 1939-02-27 1940-02-27 Improvements to tread surfaces for pneumatic tires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB638139A GB527015A (en) 1939-02-27 1939-02-27 Improvements in treads for pneumatic tyres

Publications (1)

Publication Number Publication Date
GB527015A true GB527015A (en) 1940-10-01

Family

ID=9813463

Family Applications (1)

Application Number Title Priority Date Filing Date
GB638139A Expired GB527015A (en) 1939-02-27 1939-02-27 Improvements in treads for pneumatic tyres

Country Status (2)

Country Link
FR (1) FR863566A (en)
GB (1) GB527015A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938572A (en) * 1973-12-31 1976-02-17 The Yokohama Rubber Co. Ltd. Crack prevention for pneumatic tire
EP0319860A2 (en) * 1987-12-09 1989-06-14 Sumitomo Rubber Industries Limited Radial tire for heavy duty vehicles
US20130075001A1 (en) * 2011-09-26 2013-03-28 Toyo Tire & Rubber Co., Ltd. Pneumatic tire

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60240507A (en) * 1984-05-15 1985-11-29 Sumitomo Rubber Ind Ltd Low noise multi-siping tire
JPS6185503U (en) * 1984-11-09 1986-06-05

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938572A (en) * 1973-12-31 1976-02-17 The Yokohama Rubber Co. Ltd. Crack prevention for pneumatic tire
EP0319860A2 (en) * 1987-12-09 1989-06-14 Sumitomo Rubber Industries Limited Radial tire for heavy duty vehicles
EP0319860A3 (en) * 1987-12-09 1989-12-06 Sumitomo Rubber Industries Limited Radial tire for heavy duty vehicles
US20130075001A1 (en) * 2011-09-26 2013-03-28 Toyo Tire & Rubber Co., Ltd. Pneumatic tire
CN103009935A (en) * 2011-09-26 2013-04-03 东洋橡胶工业株式会社 Pneumatic tire
US9539861B2 (en) * 2011-09-26 2017-01-10 Toyo Tire & Rubber Co., Ltd. Pneumatic tire

Also Published As

Publication number Publication date
FR863566A (en) 1941-04-04

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