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GB918988A - Improvements in or relating to pneumatic tyres for vehicle wheels - Google Patents

Improvements in or relating to pneumatic tyres for vehicle wheels

Info

Publication number
GB918988A
GB918988A GB3173459A GB3173459A GB918988A GB 918988 A GB918988 A GB 918988A GB 3173459 A GB3173459 A GB 3173459A GB 3173459 A GB3173459 A GB 3173459A GB 918988 A GB918988 A GB 918988A
Authority
GB
United Kingdom
Prior art keywords
grooves
portions
channel
extending
laterally
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
GB3173459A
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.)
Pirelli and C SpA
Original Assignee
Pirelli SpA
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 Pirelli SpA filed Critical Pirelli SpA
Publication of GB918988A publication Critical patent/GB918988A/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
    • B60C2011/0337—Tread patterns characterised by particular design features of the pattern
    • B60C2011/0339—Grooves
    • B60C2011/0381—Blind or isolated grooves
    • B60C2011/0383—Blind or isolated grooves at the centre of the tread
    • 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)

Abstract

918,988. Pneumatic tyre treads. PIRELLI S.p.A. Sept. 17, 1959 [May 15, 1959], No. 31734/59. Class 144 (2). A pneumatic tyre tread comprises four axially-spaced narrow circumferential channels 1 each formed with circumferentially-spaced parallelogram-shaped widened portions 2 which are staggered centrally relatively to those of the adjacent channels, the successive portions of channel between the widened portions 2 in each channel being laterally offset by an amount equal to the width of the channel with alternate said portions being circumferentially aligned. As shown, opposite corners of each widened portion 2 open into grooves 3, 4 respectively of different length, each of which extend in the same direction at an angle of 45 degrees to the circumferential and the grooves 3, 4 extending from each channel being at right-angles to those extending from the adjacent channels. The grooves extending from the laterally outer channels into laterally outer, ribs 5, 6 are extended laterally into grooves 8 which are spaced by lateral grooves 7 in the ribs 5, 6 extending radially into the shoulder regions B. The laterally outer edges of the ribs 5, 6 are scalloped with the grooves 7 and 8 positioned centrally of the arcuate recesses 10 thereof and the ridges 12 thereof are removed over the radially outer portions 11. The grooves 8 have tongues 9 upstanding from their bases to terminate below the tread surface.
GB3173459A 1959-05-15 1959-09-17 Improvements in or relating to pneumatic tyres for vehicle wheels Expired GB918988A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT277159 1959-05-15

Publications (1)

Publication Number Publication Date
GB918988A true GB918988A (en) 1963-02-20

Family

ID=11103389

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3173459A Expired GB918988A (en) 1959-05-15 1959-09-17 Improvements in or relating to pneumatic tyres for vehicle wheels

Country Status (1)

Country Link
GB (1) GB918988A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2463687A1 (en) * 1979-08-20 1981-02-27 Uniroyal Englebert Pneu TREAD SCULPTURE FOR PNEUMATIC ENVELOPES
US5209793A (en) * 1991-05-15 1993-05-11 Bridgestone/Firestone, Inc. Low noise pneumatic tire tread with voids balanced over each half tread region
EP2610086A1 (en) * 2011-12-29 2013-07-03 Sumitomo Rubber Industries, Ltd. Pneumatic tire
EP2781373A1 (en) * 2013-03-19 2014-09-24 Sumitomo Rubber Industries, Ltd. Pneumatic tire
US20150107738A1 (en) * 2012-05-25 2015-04-23 Michelin Recherche Et Technique S.A. Method and Tire for Improved Uniformity and Endurance of Aggressive Tread Designs Using Scalloped Layering Technique
US20160375728A1 (en) * 2013-11-27 2016-12-29 The Yokohama Rubber Co., Ltd. Pneumatic Tire

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2463687A1 (en) * 1979-08-20 1981-02-27 Uniroyal Englebert Pneu TREAD SCULPTURE FOR PNEUMATIC ENVELOPES
US4387754A (en) * 1979-08-20 1983-06-14 Pneu Uniroyal Englebert Tire tread pattern
US5209793A (en) * 1991-05-15 1993-05-11 Bridgestone/Firestone, Inc. Low noise pneumatic tire tread with voids balanced over each half tread region
EP2610086A1 (en) * 2011-12-29 2013-07-03 Sumitomo Rubber Industries, Ltd. Pneumatic tire
US20150107738A1 (en) * 2012-05-25 2015-04-23 Michelin Recherche Et Technique S.A. Method and Tire for Improved Uniformity and Endurance of Aggressive Tread Designs Using Scalloped Layering Technique
EP2781373A1 (en) * 2013-03-19 2014-09-24 Sumitomo Rubber Industries, Ltd. Pneumatic tire
US20160375728A1 (en) * 2013-11-27 2016-12-29 The Yokohama Rubber Co., Ltd. Pneumatic Tire
US9889708B2 (en) * 2013-11-27 2018-02-13 The Yokohama Rubber Co., Ltd. Pneumatic tire

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