CA2080328A1 - Pneumatic tire - Google Patents

Pneumatic tire

Info

Publication number
CA2080328A1
CA2080328A1 CA002080328A CA2080328A CA2080328A1 CA 2080328 A1 CA2080328 A1 CA 2080328A1 CA 002080328 A CA002080328 A CA 002080328A CA 2080328 A CA2080328 A CA 2080328A CA 2080328 A1 CA2080328 A1 CA 2080328A1
Authority
CA
Canada
Prior art keywords
tread
shoulder
axially
groove
circumferential
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
CA002080328A
Other languages
French (fr)
Other versions
CA2080328C (en
Inventor
Kiyoshi Ochiai
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
Kiyoshi Ochiai
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
Priority claimed from JP03305275A external-priority patent/JP3113343B2/en
Priority claimed from JP03305274A external-priority patent/JP3133800B2/en
Application filed by Kiyoshi Ochiai, Sumitomo Rubber Industries, Ltd. filed Critical Kiyoshi Ochiai
Publication of CA2080328A1 publication Critical patent/CA2080328A1/en
Application granted granted Critical
Publication of CA2080328C publication Critical patent/CA2080328C/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
    • B60C11/03—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

Abstract

A pneumatic tire is provided herein comprising a tread portion having a pair of tread edges. The tread portion is provided with at least two main circumferential grooves and with axial grooves to define tread blocks which are arranged in two or more circumferential rows. The tread blocks comprise shoulder blocks which are between each axially-outermost main circumferential groove and each tread edge. Each of the shoulder blocks is provided with a narrow circumferential shoulder groove so as to subdivide the block axially into an axially-outer shoulder block part and an axially-inner shoulder block part. The axial width of the axially-outer shoulder block part, measured from the tread edge to the narrow circumferential shoulder groove is 0.06 to 0.25 times the tread half-width between one tread edge to a tire equator.
The mean groove depth of the narrow circumferential shoulder groove is 0.3 to 1.10 times the groove depth of the main circumferential grooves. Each of the tread blocks in the two or more circumferential rows is provided with one or more sipes extending circumferentially of the tire to divide the tread block into two or more axial parts. The sipe or sipes have a width of 0.2 to 1.5 mm. The sipe or sipes are disposed in the axially-outer shoulder block part. The mean depth of each of the sipe or spies is 0.25 to 1.25 times the mean groove depth of the narrow circumferential shoulder groove.
CA002080328A 1991-10-23 1992-10-09 Pneumatic tire Expired - Fee Related CA2080328C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP03305275A JP3113343B2 (en) 1991-10-23 1991-10-23 Pneumatic tire
JP3-305274 1991-10-23
JP3-305275 1991-10-23
JP03305274A JP3133800B2 (en) 1991-10-23 1991-10-23 Pneumatic tire

Publications (2)

Publication Number Publication Date
CA2080328A1 true CA2080328A1 (en) 1993-04-24
CA2080328C CA2080328C (en) 2003-07-15

Family

ID=26564232

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002080328A Expired - Fee Related CA2080328C (en) 1991-10-23 1992-10-09 Pneumatic tire

Country Status (4)

Country Link
CA (1) CA2080328C (en)
FI (1) FI103333B (en)
NO (1) NO178143C (en)
SE (2) SE506671C2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5605588A (en) * 1993-06-14 1997-02-25 Sumitomo Rubber Industries, Ltd. Studless tire
US5891276A (en) * 1996-10-28 1999-04-06 The Yokohama Rubber Co., Ltd. Pneumatic tire for heavy duty including narrow block
US6000450A (en) * 1995-11-15 1999-12-14 Sumitomo Rubber Industries, Ltd. Studless tire
US20130000805A1 (en) * 2010-03-12 2013-01-03 Bridgestone Corporation Pneumatic tire
US10500903B2 (en) 2012-03-14 2019-12-10 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
US5605588A (en) * 1993-06-14 1997-02-25 Sumitomo Rubber Industries, Ltd. Studless tire
US6000450A (en) * 1995-11-15 1999-12-14 Sumitomo Rubber Industries, Ltd. Studless tire
US5891276A (en) * 1996-10-28 1999-04-06 The Yokohama Rubber Co., Ltd. Pneumatic tire for heavy duty including narrow block
US20130000805A1 (en) * 2010-03-12 2013-01-03 Bridgestone Corporation Pneumatic tire
US9266397B2 (en) * 2010-03-12 2016-02-23 Bridgestone Corporation Pneumatic tire
CN104773039B (en) * 2010-03-12 2017-05-03 株式会社普利司通 Pneumatic tire
CN104773039B9 (en) * 2010-03-12 2017-07-04 株式会社普利司通 Pneumatic tire
US10500903B2 (en) 2012-03-14 2019-12-10 The Yokohama Rubber Co., Ltd. Pneumatic tire

Also Published As

Publication number Publication date
SE9703201L (en) 1997-09-05
CA2080328C (en) 2003-07-15
FI924771A0 (en) 1992-10-21
NO924081L (en) 1993-04-26
FI924771A (en) 1993-04-24
SE510665C2 (en) 1999-06-14
NO178143C (en) 1996-01-31
SE9703201D0 (en) 1997-09-05
SE9202841L (en) 1993-04-24
FI103333B1 (en) 1999-06-15
SE9202841D0 (en) 1992-09-30
NO178143B (en) 1995-10-23
SE506671C2 (en) 1998-01-26
FI103333B (en) 1999-06-15
NO924081D0 (en) 1992-10-21

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed