CA2006573A1 - Pneumatic tire with sidewall protrusions for enhanced operation on snow covered terrain - Google Patents

Pneumatic tire with sidewall protrusions for enhanced operation on snow covered terrain

Info

Publication number
CA2006573A1
CA2006573A1 CA2006573A CA2006573A CA2006573A1 CA 2006573 A1 CA2006573 A1 CA 2006573A1 CA 2006573 A CA2006573 A CA 2006573A CA 2006573 A CA2006573 A CA 2006573A CA 2006573 A1 CA2006573 A1 CA 2006573A1
Authority
CA
Canada
Prior art keywords
tread
axially
face
sidewall
inwardly
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.)
Granted
Application number
CA2006573A
Other languages
French (fr)
Other versions
CA2006573C (en
Inventor
Kiyoshi Ochiai
Kazuki Numata
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.)
Sumitomo Rubber Industries Ltd
Original Assignee
Sumitomo Rubber Industries 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 Sumitomo Rubber Industries Ltd filed Critical Sumitomo Rubber Industries Ltd
Publication of CA2006573A1 publication Critical patent/CA2006573A1/en
Application granted granted Critical
Publication of CA2006573C publication Critical patent/CA2006573C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B60C11/01—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
    • B60C11/11—Tread patterns in which the raised area of the pattern consists only of isolated elements, e.g. blocks
    • 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

Landscapes

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

Abstract

A pneumatic tire is provided having improved road grip performance on snowy roads. The pneumatic tire incudes a tread portion, and a pair of sidewall portions extending radially-inwardly from an associated tread edge to an associated bead portion. The tread portion includes primary, circumferentially-extending main grooves which are disposed on each associated side of the equator of the tire, and lateral grooves extending from the main grooves to the tread edges to open at the axially-outer end thereof at the face of the sidewall portion. This structure forms, in each shoulder region, a row of shoulder blocks which are arranged circumferentially of the tire along each tread edge. The face of the tread portion includes indentations, and each face of the sidewall portions includes associated protrusions. A pair of the indentations and the protrusions make up a gripping means. Each indentation extends both radially-inwardly from the surface of the tread portion and axially-inwardly from the face of the sidewall, thereby to extend from the tread edge to a point which is axially-inward thereof. The axially-outer end thereof is open at the face of the sidewall, and the axially-inner end terminates an axial distance inwardly of the tread edge at the top of the shoulder block.
CA002006573A 1989-01-07 1989-12-22 Pneumatic tire with sidewall protrusions for enhanced operation on snow covered terrain Expired - Fee Related CA2006573C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1-1879 1989-01-07
JP1001879A JPH0764166B2 (en) 1989-01-07 1989-01-07 Pneumatic tire

Publications (2)

Publication Number Publication Date
CA2006573A1 true CA2006573A1 (en) 1990-07-07
CA2006573C CA2006573C (en) 1999-12-07

Family

ID=11513848

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002006573A Expired - Fee Related CA2006573C (en) 1989-01-07 1989-12-22 Pneumatic tire with sidewall protrusions for enhanced operation on snow covered terrain

Country Status (3)

Country Link
JP (1) JPH0764166B2 (en)
CA (1) CA2006573C (en)
DE (1) DE4000339C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2551128A1 (en) 2011-07-29 2013-01-30 Sumitomo Rubber Industries Limited Pneumatic Tire

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0487806A (en) * 1990-07-31 1992-03-19 Bridgestone Corp Block for pneumatic tire
JPH04176710A (en) * 1990-11-13 1992-06-24 Sumitomo Rubber Ind Ltd Studless tire for passenger car
JP2898832B2 (en) * 1992-09-30 1999-06-02 株式会社ブリヂストン Pneumatic tire
DE4416435A1 (en) * 1994-05-10 1996-02-01 Uniroyal Englebert Gmbh Tread pattern
US20080271826A1 (en) * 2007-05-03 2008-11-06 Paul Bryan Maxwell Pnuematic tire
DE102007047496A1 (en) 2007-10-04 2009-04-09 Continental Aktiengesellschaft Vehicle e.g. lorry, pneumatic tire, has supporting bodies positioned on shoulder flanks radially within crosswise slots, where bodies are implemented in block-like manner and exhibit outer surface that runs parallel to shoulder flanks
DE102008007548A1 (en) 2008-02-05 2009-08-06 Continental Aktiengesellschaft Vehicle tires
US9919566B2 (en) * 2009-05-29 2018-03-20 Pirelli Tyre S.P.A. Winter tyre
JP5629286B2 (en) * 2012-05-15 2014-11-19 住友ゴム工業株式会社 Pneumatic tire
DE102014215246A1 (en) 2014-08-01 2016-02-04 Continental Reifen Deutschland Gmbh Vehicle tires

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT163051B (en) * 1946-12-12 1949-05-10 Semperit Ag Tread design of pneumatic vehicle tires
DE1605649A1 (en) * 1966-09-28 1970-06-04 Dunlop Ag Vehicle tires
CH579292A5 (en) * 1973-05-18 1976-08-31 Ciba Geigy Ag
GB1602723A (en) * 1978-04-18 1981-11-18 Dunlop Ltd Tyres
DE3442300A1 (en) * 1984-11-20 1986-05-22 Continental Gummi-Werke Ag, 3000 Hannover Tread design for the pneumatic tyres of vehicles
JP2515799B2 (en) * 1987-05-20 1996-07-10 株式会社ブリヂストン Pneumatic tire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2551128A1 (en) 2011-07-29 2013-01-30 Sumitomo Rubber Industries Limited Pneumatic Tire
US9150053B2 (en) 2011-07-29 2015-10-06 Sumitomo Rubber Industries, Ltd. Pneumatic tire

Also Published As

Publication number Publication date
DE4000339C2 (en) 2003-06-26
JPH02182503A (en) 1990-07-17
DE4000339A1 (en) 1990-07-12
CA2006573C (en) 1999-12-07
JPH0764166B2 (en) 1995-07-12

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed