GB555633A - Improvements in or relating to pneumatic tires - Google Patents

Improvements in or relating to pneumatic tires

Info

Publication number
GB555633A
GB555633A GB3542/41A GB354241A GB555633A GB 555633 A GB555633 A GB 555633A GB 3542/41 A GB3542/41 A GB 3542/41A GB 354241 A GB354241 A GB 354241A GB 555633 A GB555633 A GB 555633A
Authority
GB
United Kingdom
Prior art keywords
elements
tread
slits
lengths
group
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
GB3542/41A
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 GB555633A publication Critical patent/GB555633A/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
    • B60C11/0318—Tread patterns irregular patterns with particular pitch sequence
    • 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
    • B60C11/04—Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag

Landscapes

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

Abstract

555,633. Pneumatic tyres. FIRESTONE TIRE & RUBBER CO. March 14, 1941, No. 3542. Convention date, Aug. 3, 1940. [Class 144 (ii)] To minimize objectionable noise from resonant vibrations set up in a tyre, the tread is formed with a plurality of traction elements, such as serrations or slits in the side edges of circumferential ribs, Figs. 1, 6, arranged in a series of successive circumferential groups, such as A-H, Fig. 3, each group occupying the full tread width and the elements of any one group being each of different circumferential length from that of the elements in adjacent groups. In the serrated rib pattern shown in Fig. 1 the resultant zig-zag ribs intermesh and the centre lines of the elements (through the peaks and valleys) are transverselh aligned on axes parallel to the tyre axis Due to the convexity of the tread surface this results in the lengths of the elements (between peaks) towards the sides of the tread being less, in each group, that the lengths of the elements towards the crown region of the tread. This applies also to the elements formed by the slits shown in Fig. 6, the lengths being measured circumferentially between adjacent slits in each rib. The slits are preferably of rounded bottom formation, sawn, cut or moulded in the tread.
GB3542/41A 1940-08-03 1941-03-14 Improvements in or relating to pneumatic tires Expired GB555633A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US555633XA 1940-08-03 1940-08-03

Publications (1)

Publication Number Publication Date
GB555633A true GB555633A (en) 1943-09-01

Family

ID=21998693

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3542/41A Expired GB555633A (en) 1940-08-03 1941-03-14 Improvements in or relating to pneumatic tires

Country Status (2)

Country Link
CH (1) CH226373A (en)
GB (1) GB555633A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612928A (en) * 1950-06-28 1952-10-07 Armstrong Rubber Co Tire casing with noiseless tread
US3094157A (en) * 1960-08-01 1963-06-18 Continental Gummi Werke Ag Vehicle tire
DE3218219A1 (en) * 1982-05-14 1983-11-17 Continental Gummi-Werke Ag, 3000 Hannover Process for producing a noise-optimised pneumatic vehicle tyre
FR2564385A1 (en) * 1984-05-15 1985-11-22 Sumitomo Rubber Ind LAMELLIZED PNEUMATIC FOR SILENT DRIVING
US20120285592A1 (en) * 2011-05-10 2012-11-15 The Yokohama 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
DE3445041C2 (en) * 1984-12-11 1996-05-23 Continental Ag Tread for pneumatic vehicle tires
DE3630590A1 (en) * 1986-09-09 1988-03-31 Continental Gummi Werke Ag Vehicle tyre optimised in terms of noise

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612928A (en) * 1950-06-28 1952-10-07 Armstrong Rubber Co Tire casing with noiseless tread
US3094157A (en) * 1960-08-01 1963-06-18 Continental Gummi Werke Ag Vehicle tire
DE3218219A1 (en) * 1982-05-14 1983-11-17 Continental Gummi-Werke Ag, 3000 Hannover Process for producing a noise-optimised pneumatic vehicle tyre
FR2564385A1 (en) * 1984-05-15 1985-11-22 Sumitomo Rubber Ind LAMELLIZED PNEUMATIC FOR SILENT DRIVING
US20120285592A1 (en) * 2011-05-10 2012-11-15 The Yokohama Rubber Co., Ltd. Pneumatic tire
US9004126B2 (en) * 2011-05-10 2015-04-14 The Yokohama Rubber Co., Ltd. Pneumatic tire with tread having groove area ratio

Also Published As

Publication number Publication date
CH226373A (en) 1943-03-31

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