JPS644502A - Pneumatic tire - Google Patents

Pneumatic tire

Info

Publication number
JPS644502A
JPS644502A JP62160577A JP16057787A JPS644502A JP S644502 A JPS644502 A JP S644502A JP 62160577 A JP62160577 A JP 62160577A JP 16057787 A JP16057787 A JP 16057787A JP S644502 A JPS644502 A JP S644502A
Authority
JP
Japan
Prior art keywords
cut
depth
tread rubber
rubber layer
longitudinal groove
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.)
Pending
Application number
JP62160577A
Other languages
Japanese (ja)
Inventor
Hiroshi Hoshino
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
Priority to JP62160577A priority Critical patent/JPS644502A/en
Publication of JPS644502A publication Critical patent/JPS644502A/en
Pending legal-status Critical Current

Links

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  • Tires In General (AREA)

Abstract

PURPOSE:To prevent the generation of cracks on a cut edge part in brake application or driving, by setting the depth of a cut formed on a tread rubber layer within a specific range and arranging the cut edge part at the position having a high rigidity where a stress hardly acts. CONSTITUTION:As for a tread rubber layer 1 of a tire, longitudinal grooves 2 and cut parts 3 are formed on the surface, and a belt reinforced layer 4 is installed inside. In this case, the cut part 3 is formed as the cut crossing a bulged part between the longitudinal grooves 2, having an inclination angle thetaof 30-90 deg. with respect to the longitudinal groove 2, and keeping an interval P of 10-50mm in the circumferential direction. The depth of the cut 3 is set so that the cut edge part 3a is positioned at the part where the stress in the tread rubber layer 1 hardly acts. In other words, when the depth of the cut 3 is set C, depth of the longitudinal groove 2 is set D, thickness from the bottom surface 2a of the longitudinal groove 2 to the belt reinforced layer 4 is set S, the following relation shall be satisfied; D+S/2>=C>=0.95D.
JP62160577A 1987-06-26 1987-06-26 Pneumatic tire Pending JPS644502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62160577A JPS644502A (en) 1987-06-26 1987-06-26 Pneumatic tire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62160577A JPS644502A (en) 1987-06-26 1987-06-26 Pneumatic tire

Publications (1)

Publication Number Publication Date
JPS644502A true JPS644502A (en) 1989-01-09

Family

ID=15717972

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62160577A Pending JPS644502A (en) 1987-06-26 1987-06-26 Pneumatic tire

Country Status (1)

Country Link
JP (1) JPS644502A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008249018A (en) * 2007-03-30 2008-10-16 Jtekt Corp Rolling bearing device
US20160082779A1 (en) * 2013-05-13 2016-03-24 Sumitomo Rubber Industries, Ltd. Pneumatic tire
US20170361658A1 (en) * 2014-12-31 2017-12-21 Compagnie Generale Des Etablissements Michelin Tire tread with improved dry/snow traction
CN111376654A (en) * 2018-12-27 2020-07-07 通伊欧轮胎株式会社 Pneumatic tire

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57147902A (en) * 1981-02-23 1982-09-13 Gen Tire & Rubber Co Tire with improved tread surface
JPS59169836A (en) * 1983-03-15 1984-09-25 Sumitomo Rubber Ind Ltd Manufacture of tire
JPS60143109A (en) * 1983-12-29 1985-07-29 Sumitomo Rubber Ind Ltd Tyre

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57147902A (en) * 1981-02-23 1982-09-13 Gen Tire & Rubber Co Tire with improved tread surface
JPS59169836A (en) * 1983-03-15 1984-09-25 Sumitomo Rubber Ind Ltd Manufacture of tire
JPS60143109A (en) * 1983-12-29 1985-07-29 Sumitomo Rubber Ind Ltd Tyre

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008249018A (en) * 2007-03-30 2008-10-16 Jtekt Corp Rolling bearing device
US20160082779A1 (en) * 2013-05-13 2016-03-24 Sumitomo Rubber Industries, Ltd. Pneumatic tire
US10471778B2 (en) * 2013-05-13 2019-11-12 Sumitomo Rubber Industries, Ltd. Pneumatic tire
US20170361658A1 (en) * 2014-12-31 2017-12-21 Compagnie Generale Des Etablissements Michelin Tire tread with improved dry/snow traction
CN111376654A (en) * 2018-12-27 2020-07-07 通伊欧轮胎株式会社 Pneumatic tire
CN111376654B (en) * 2018-12-27 2022-04-01 通伊欧轮胎株式会社 Pneumatic tire

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