FI103334B1 - Block tread tyre - Google Patents

Block tread tyre

Info

Publication number
FI103334B1
FI103334B1 FI925726A FI925726A FI103334B1 FI 103334 B1 FI103334 B1 FI 103334B1 FI 925726 A FI925726 A FI 925726A FI 925726 A FI925726 A FI 925726A FI 103334 B1 FI103334 B1 FI 103334B1
Authority
FI
Finland
Prior art keywords
grooves
axial
groove
circumferential
depth
Prior art date
Application number
FI925726A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI103334B (en
FI925726A (en
FI925726A0 (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 JP3359471A external-priority patent/JPH05178031A/en
Priority claimed from JP35947291A external-priority patent/JP3145762B2/en
Application filed by Sumitomo Rubber Ind filed Critical Sumitomo Rubber Ind
Publication of FI925726A0 publication Critical patent/FI925726A0/en
Publication of FI925726A publication Critical patent/FI925726A/en
Application granted granted Critical
Publication of FI103334B1 publication Critical patent/FI103334B1/en
Publication of FI103334B publication Critical patent/FI103334B/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).
FI925726A 1991-12-26 1992-12-16 Figure knob ring FI103334B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP35947291 1991-12-26
JP3359471A JPH05178031A (en) 1991-12-26 1991-12-26 Pneumatic tire
JP35947191 1991-12-26
JP35947291A JP3145762B2 (en) 1991-12-26 1991-12-26 Pneumatic tire

Publications (4)

Publication Number Publication Date
FI925726A0 FI925726A0 (en) 1992-12-16
FI925726A FI925726A (en) 1993-06-27
FI103334B1 true FI103334B1 (en) 1999-06-15
FI103334B FI103334B (en) 1999-06-15

Family

ID=26580976

Family Applications (1)

Application Number Title Priority Date Filing Date
FI925726A FI103334B (en) 1991-12-26 1992-12-16 Figure knob ring

Country Status (4)

Country Link
CA (1) CA2084741C (en)
FI (1) FI103334B (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
SE505583C2 (en) 1997-09-15
FI103334B (en) 1999-06-15
NO924950L (en) 1993-06-28
CA2084741A1 (en) 1993-06-27
FI925726A (en) 1993-06-27
NO924950D0 (en) 1992-12-21
NO177491B (en) 1995-06-19
SE9203627D0 (en) 1992-12-02
FI925726A0 (en) 1992-12-16
CA2084741C (en) 2003-04-22
NO177491C (en) 1995-09-27
SE9203627L (en) 1993-06-27

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Legal Events

Date Code Title Description
MA Patent expired