NO177491C - Tire with block pattern - Google Patents

Tire with block pattern

Info

Publication number
NO177491C
NO177491C NO924950A NO924950A NO177491C NO 177491 C NO177491 C NO 177491C NO 924950 A NO924950 A NO 924950A NO 924950 A NO924950 A NO 924950A NO 177491 C NO177491 C NO 177491C
Authority
NO
Norway
Prior art keywords
grooves
axial
groove
circumferential
depth
Prior art date
Application number
NO924950A
Other languages
Norwegian (no)
Other versions
NO924950L (en
NO177491B (en
NO924950D0 (en
Inventor
Kazuki Numata
Kiyoshi Ochiai
Original Assignee
Sumitomo Rubber Ind
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 JP35947291A external-priority patent/JP3145762B2/en
Priority claimed from JP3359471A external-priority patent/JPH05178031A/en
Application filed by Sumitomo Rubber Ind filed Critical Sumitomo Rubber Ind
Publication of NO924950D0 publication Critical patent/NO924950D0/en
Publication of NO924950L publication Critical patent/NO924950L/en
Publication of NO177491B publication Critical patent/NO177491B/en
Publication of NO177491C publication Critical patent/NO177491C/en

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
    • B60C11/0309—Patterns comprising block rows or discontinuous ribs further characterised by the groove cross-section
    • 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
    • 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
    • B60C11/1259—Depth of the sipe
    • B60C11/1263—Depth of the sipe different within the same sipe

Landscapes

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

Abstract

Tread comprises (i) two wide main circumferential grooves having axial grooves extending therebetween divide the tread portion into at least three rows of blocks; (ii) a series of 1st sipes, narrower than the circumferential and axial grooves, are provided in the tread surface, (iii) the depth of the axial grooves is 0.2 0.5 times the depth of the circumferential grooves, (iv) each axial groove has in its bottom face a 2nd sipe having a width of 0.2 to 1.1mm, (v) each 2nd sipe extends centrally in the axial groove, has a length between 0.7 and 1.0 times the groove length and terminates, within the groove, and the total of the depths of the axial groove and the second sipe is not more than 0.7 times the depth of the circumferential grooves. The axial grooves may be inclined at not more than 30 deg. w.r.t. the tyre axial direction. A pair of narrow zigzag circumferential grooves (3a) may be provided between the wide straight circumferential grooves (3b). The central portion of the axial grooves may comprise narrow grooves (6a) alternating with wider grooves (7a), the wider grooves (7a) having the same depth (P) as the adjacent circumferential groove (3a), and the narrow grooves (6a) being shallower than this depth (P).
NO924950A 1991-12-26 1992-12-21 Tire with block pattern NO177491C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP35947291A JP3145762B2 (en) 1991-12-26 1991-12-26 Pneumatic tire
JP3359471A JPH05178031A (en) 1991-12-26 1991-12-26 Pneumatic tire

Publications (4)

Publication Number Publication Date
NO924950D0 NO924950D0 (en) 1992-12-21
NO924950L NO924950L (en) 1993-06-28
NO177491B NO177491B (en) 1995-06-19
NO177491C true NO177491C (en) 1995-09-27

Family

ID=26580976

Family Applications (1)

Application Number Title Priority Date Filing Date
NO924950A NO177491C (en) 1991-12-26 1992-12-21 Tire with block pattern

Country Status (4)

Country Link
CA (1) CA2084741C (en)
FI (1) FI103334B1 (en)
NO (1) NO177491C (en)
SE (1) SE505583C2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3079026B2 (en) * 1995-11-15 2000-08-21 住友ゴム工業株式会社 studless tire
JP3136101B2 (en) * 1996-09-19 2001-02-19 住友ゴム工業株式会社 Pneumatic tire
IT1289182B1 (en) * 1997-01-20 1998-09-29 Pirelli TIRE WITH LOW ROLLING RESISTANCE IN PARTICULAR FOR DRIVE WHEELS OF HEAVY VEHICLES
GB9814102D0 (en) * 1998-06-30 1998-08-26 Sumitomo Rubber Ind Improvements to tyres
JP3076553B2 (en) * 1998-12-21 2000-08-14 住友ゴム工業株式会社 Heavy duty tire

Also Published As

Publication number Publication date
FI925726A0 (en) 1992-12-16
SE505583C2 (en) 1997-09-15
FI103334B (en) 1999-06-15
CA2084741A1 (en) 1993-06-27
CA2084741C (en) 2003-04-22
FI925726A (en) 1993-06-27
SE9203627D0 (en) 1992-12-02
FI103334B1 (en) 1999-06-15
SE9203627L (en) 1993-06-27
NO924950L (en) 1993-06-28
NO177491B (en) 1995-06-19
NO924950D0 (en) 1992-12-21

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Legal Events

Date Code Title Description
MM1K Lapsed by not paying the annual fees