FR2457185A1 - Tread block patterns for snow tyres - with enhanced tread face area densities along tread borders - Google Patents

Tread block patterns for snow tyres - with enhanced tread face area densities along tread borders

Info

Publication number
FR2457185A1
FR2457185A1 FR7913429A FR7913429A FR2457185A1 FR 2457185 A1 FR2457185 A1 FR 2457185A1 FR 7913429 A FR7913429 A FR 7913429A FR 7913429 A FR7913429 A FR 7913429A FR 2457185 A1 FR2457185 A1 FR 2457185A1
Authority
FR
France
Prior art keywords
tread
borders
enhanced
face area
block patterns
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
FR7913429A
Other languages
French (fr)
Other versions
FR2457185B1 (en
Inventor
Daniel Dubos
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.)
Pneumatiques Caoutchouc Manufacture et Plastiques Kleber Colombes SA
Original Assignee
Pneumatiques Caoutchouc Manufacture et Plastiques Kleber Colombes SA
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 Pneumatiques Caoutchouc Manufacture et Plastiques Kleber Colombes SA filed Critical Pneumatiques Caoutchouc Manufacture et Plastiques Kleber Colombes SA
Priority to FR7913429A priority Critical patent/FR2457185A1/en
Publication of FR2457185A1 publication Critical patent/FR2457185A1/en
Application granted granted Critical
Publication of FR2457185B1 publication Critical patent/FR2457185B1/fr
Granted 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
    • B60C11/11—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
    • B60C11/0304—Asymmetric patterns
    • 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
    • B60C11/0327—Tread patterns characterised by special properties of the tread pattern
    • B60C11/033—Tread patterns characterised by special properties of the tread pattern by the void or net-to-gross ratios of the patterns

Landscapes

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

Abstract

Tread pattern for a snow tyre features discrete tread blocks of varying proportions such that over 3/4 of the tread zone, the ratio of solid/relieved surface area is in the range 0.8-1.2, but over the remaining 1/4 of the tread width, in zones along the edges of the tread, the solid/relieved surface area ratio lies in the range 2.5-3. Combines the grip offered by low solid/relieved surface area ratio over most of the tread width with a reduced tread wear rate when running on hard surfaces, due to increased support by the tread borders.
FR7913429A 1979-05-23 1979-05-23 Tread block patterns for snow tyres - with enhanced tread face area densities along tread borders Granted FR2457185A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7913429A FR2457185A1 (en) 1979-05-23 1979-05-23 Tread block patterns for snow tyres - with enhanced tread face area densities along tread borders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7913429A FR2457185A1 (en) 1979-05-23 1979-05-23 Tread block patterns for snow tyres - with enhanced tread face area densities along tread borders

Publications (2)

Publication Number Publication Date
FR2457185A1 true FR2457185A1 (en) 1980-12-19
FR2457185B1 FR2457185B1 (en) 1982-10-01

Family

ID=9225889

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7913429A Granted FR2457185A1 (en) 1979-05-23 1979-05-23 Tread block patterns for snow tyres - with enhanced tread face area densities along tread borders

Country Status (1)

Country Link
FR (1) FR2457185A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4461334A (en) * 1982-07-21 1984-07-24 Bridgestone Tire Company Limited Heavy duty pneumatic tires
US5503206A (en) * 1994-04-11 1996-04-02 The Goodyear Tire & Rubber Company Pneumatic tire having improved wet traction
EP0921020A2 (en) * 1997-12-04 1999-06-09 Continental Aktiengesellschaft Winter tyre tread

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1424968A (en) * 1961-12-18 1966-01-14 Pneumatic tire for motor cars
CH421735A (en) * 1963-03-02 1966-09-30 Investment In Patent Dev S A R All-weather automotive tires
DE1505097A1 (en) * 1963-07-19 1969-02-27 Metzeler Ag Pneumatic motor vehicle tires with an irregular profile over the entire width of the tread
FR2079429A1 (en) * 1970-02-14 1971-11-12 Dunlop Holdings Ltd
FR2080054A5 (en) * 1970-02-20 1971-11-12 Michelin & Cie
DE2263455A1 (en) * 1972-12-27 1974-07-04 Barth Erich Tyre tread for icy roads - has no spikes but contains suction cup recesses to improve adhesion to road surface
FR2227965A1 (en) * 1973-05-04 1974-11-29 Uniroyal Tyre cover having long life - by eliminating or reducing selective wear in tread side zones
GB1514473A (en) * 1975-05-15 1978-06-14 Michelin & Cie Pneumatic tyres
FR2415548A1 (en) * 1978-01-27 1979-08-24 Uniroyal Asymmetric sub-tread reinforcement of radial ply tyres - to reduce rolling resistance and suppress delamination

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1424968A (en) * 1961-12-18 1966-01-14 Pneumatic tire for motor cars
CH421735A (en) * 1963-03-02 1966-09-30 Investment In Patent Dev S A R All-weather automotive tires
DE1505097A1 (en) * 1963-07-19 1969-02-27 Metzeler Ag Pneumatic motor vehicle tires with an irregular profile over the entire width of the tread
FR2079429A1 (en) * 1970-02-14 1971-11-12 Dunlop Holdings Ltd
FR2080054A5 (en) * 1970-02-20 1971-11-12 Michelin & Cie
DE2263455A1 (en) * 1972-12-27 1974-07-04 Barth Erich Tyre tread for icy roads - has no spikes but contains suction cup recesses to improve adhesion to road surface
FR2227965A1 (en) * 1973-05-04 1974-11-29 Uniroyal Tyre cover having long life - by eliminating or reducing selective wear in tread side zones
GB1514473A (en) * 1975-05-15 1978-06-14 Michelin & Cie Pneumatic tyres
FR2415548A1 (en) * 1978-01-27 1979-08-24 Uniroyal Asymmetric sub-tread reinforcement of radial ply tyres - to reduce rolling resistance and suppress delamination

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4461334A (en) * 1982-07-21 1984-07-24 Bridgestone Tire Company Limited Heavy duty pneumatic tires
US5503206A (en) * 1994-04-11 1996-04-02 The Goodyear Tire & Rubber Company Pneumatic tire having improved wet traction
EP0921020A2 (en) * 1997-12-04 1999-06-09 Continental Aktiengesellschaft Winter tyre tread
EP0921020A3 (en) * 1997-12-04 2001-03-07 Continental Aktiengesellschaft Winter tyre tread

Also Published As

Publication number Publication date
FR2457185B1 (en) 1982-10-01

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Legal Events

Date Code Title Description
ST Notification of lapse