GB754438A - Improvements in or relating to tire tread - Google Patents

Improvements in or relating to tire tread

Info

Publication number
GB754438A
GB754438A GB1424/54A GB142454A GB754438A GB 754438 A GB754438 A GB 754438A GB 1424/54 A GB1424/54 A GB 1424/54A GB 142454 A GB142454 A GB 142454A GB 754438 A GB754438 A GB 754438A
Authority
GB
United Kingdom
Prior art keywords
ribs
shoulder
grooves
rib
serrations
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
GB1424/54A
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.)
Bridgestone Firestone Inc
Original Assignee
Firestone Tire and Rubber Co
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 Firestone Tire and Rubber Co filed Critical Firestone Tire and Rubber Co
Publication of GB754438A publication Critical patent/GB754438A/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
    • 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
    • B60C2011/0337—Tread patterns characterised by particular design features of the pattern
    • B60C2011/0386—Continuous ribs
    • B60C2011/0388—Continuous ribs provided at the equatorial plane

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

754,438. Wheel tyres. FIRESTONE TIRE & RUBBER CO. Jan. 18, 1954 [Oct. 22, 1953], No. 1424/54. Class 144 (2). A tyre tread comprises circumferential ribs 13-19 at least some of which are divided into road contacting blocks 32 by narrow grooves 9 which extend completely across the ribs and have parallel but offset end portions connected at adjacent ends thereof by relatively short centre portions. As shown, the tread comprises continuous shoulder ribs 14, 15, a continuous central rib 13 and intermediate ribs 16, 17 and 18, 19. All the ribs have serrated lateral faces and the intermediate ribs are traversed by deep, narrow, diagonally extending grooves 9 so that the ends of the blocks 32 so formed overlap circumferentially. The serrations 26, 27 on the outer faces of the shoulder ribs 14, 15 have bases 36, 33 which extend radially inwardly deeper than the shoulder ribs to provide for better vulcanisation of the tread shoulder. The serrations on the inner faces of the shoulder ribs are double in number those on the confronting faces of the intermediate ribs 16, 19, and disposed so that the ridges of the intermediate rib serrations are aligned with alternate valleys of the shoulder rib serrations, the intervening circumferential grooves 20, 25 being narrow in these regions so that under load the respective rib portions abut to leave recesses 28. The abutting (under load) rib portions are undercut as at 2, 3, 5, 6 to provide air and water outlets in use. Flexibility of the shoulder ribs 14, 15 is provided by deep narrow grooves 30, 31 which extend, at intervals, diagonally half way into the ribs from the adjacent grooves 20, 25. The grooves 9 in the intermediate ribs are directed as shown to converge, in oppositely directed senses respectively, on the circumferential grooves 21, 24 between the pairs of ribs 16, 17 and 18, 19. The depth of each groove 9 is greatest at its centre portion 1, Fig. 4, the end portions being shallower to provide braces 7, 8 between adjacent blocks 32 to stiffen the overlapping end portions thereof.
GB1424/54A 1953-10-22 1954-01-18 Improvements in or relating to tire tread Expired GB754438A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US328639XA 1953-10-22 1953-10-22

Publications (1)

Publication Number Publication Date
GB754438A true GB754438A (en) 1956-08-08

Family

ID=21867231

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1424/54A Expired GB754438A (en) 1953-10-22 1954-01-18 Improvements in or relating to tire tread

Country Status (5)

Country Link
CH (1) CH328639A (en)
DE (1) DE960968C (en)
FR (1) FR1096945A (en)
GB (1) GB754438A (en)
NL (1) NL89466C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908312A (en) * 1958-02-12 1959-10-13 Olsen Sigurd Ingemann Antiskid tread for automobile tires
DE1505056B1 (en) * 1963-12-30 1971-02-04 Goodrich Co B F Tread profiling for pneumatic vehicle tires
US4223712A (en) * 1977-09-01 1980-09-23 Bridgestone Tire Company, Limited Pneumatic tire for heavy duty vehicles
GB2120183A (en) * 1982-05-12 1983-11-30 Bridgestone Tire Co Ltd Pneumatic radial tire tread
AU634394B2 (en) * 1990-06-19 1993-02-18 Yokohama Rubber Co., Ltd., The Pneumatic radial tire for heavy-load
US5439040A (en) * 1992-12-16 1995-08-08 Sumitomo Rubber Industries, Ltd. Pneumatic radial tire including a tread with tie bars
CN110696560A (en) * 2019-11-12 2020-01-17 山东理工大学 Bionic tire pattern structure

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3012599A (en) * 1958-06-20 1961-12-12 Us Rubber Co Slotted tire tread
IT1176226B (en) * 1984-06-01 1987-08-18 Pirelli IMPROVEMENTS TO THE TIRES OF TIRES FOR VEHICLES

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2339558A (en) * 1942-03-21 1944-01-18 Firestone Tire & Rubber Co Tire
DE835850C (en) * 1950-12-28 1952-04-07 Peters Pneu Renova K G Tread design for pneumatic tires

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908312A (en) * 1958-02-12 1959-10-13 Olsen Sigurd Ingemann Antiskid tread for automobile tires
DE1505056B1 (en) * 1963-12-30 1971-02-04 Goodrich Co B F Tread profiling for pneumatic vehicle tires
US4223712A (en) * 1977-09-01 1980-09-23 Bridgestone Tire Company, Limited Pneumatic tire for heavy duty vehicles
DK152537B (en) * 1977-09-01 1988-03-14 Bridgestone Tire Co Ltd AIR COVER FOR HEAVY VEHICLES
GB2120183A (en) * 1982-05-12 1983-11-30 Bridgestone Tire Co Ltd Pneumatic radial tire tread
AU634394B2 (en) * 1990-06-19 1993-02-18 Yokohama Rubber Co., Ltd., The Pneumatic radial tire for heavy-load
US5211780A (en) * 1990-06-19 1993-05-18 The Yokohama Rubber Co., Ltd. Pneumatic radial tire for heavy-duty vehicles
US5439040A (en) * 1992-12-16 1995-08-08 Sumitomo Rubber Industries, Ltd. Pneumatic radial tire including a tread with tie bars
CN110696560A (en) * 2019-11-12 2020-01-17 山东理工大学 Bionic tire pattern structure

Also Published As

Publication number Publication date
FR1096945A (en) 1955-06-28
CH328639A (en) 1958-03-15
NL89466C (en)
DE960968C (en) 1957-03-28

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