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JPS55106805A - Pneumatic tire - Google Patents

Pneumatic tire

Info

Publication number
JPS55106805A
JPS55106805A JP13547678A JP13547678A JPS55106805A JP S55106805 A JPS55106805 A JP S55106805A JP 13547678 A JP13547678 A JP 13547678A JP 13547678 A JP13547678 A JP 13547678A JP S55106805 A JPS55106805 A JP S55106805A
Authority
JP
Japan
Prior art keywords
carcass ply
bead
fold back
reinforcement layer
pneumatic tire
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
JP13547678A
Other languages
Japanese (ja)
Inventor
Toshiharu Okamoto
Hiroshi Obata
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.)
Ohtsu Tire and Rubber Co Ltd
Original Assignee
Ohtsu Tire and Rubber Co 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 Ohtsu Tire and Rubber Co Ltd filed Critical Ohtsu Tire and Rubber Co Ltd
Priority to JP13547678A priority Critical patent/JPS55106805A/en
Publication of JPS55106805A publication Critical patent/JPS55106805A/en
Pending legal-status Critical Current

Links

Landscapes

  • Tires In General (AREA)

Abstract

PURPOSE: To prevent a fault of separation in the neighboring section between side wall part and bead part, by organically making a combination among a position of the fold back termination part of carcass ply, a position of the reinforcement layer to reinforce said former part and a mutual relation with the hard rubber.
CONSTITUTION: A pneumatic tire comprises a carcass ply 17 consisting of metallic cord with its end folded back at around a bead core 18, and the outside of its fold back part is enclosed by a bead part reinforcement layer 22 consisting of metallic cord. In the pneumatic tire of such construction, a fold back termination part 20a of the carcass ply 17 is positioned in almost center part of the gauge width in a maximum gauge part 24 of a bead portion 12, and in the bead portion 12 surrounded by this termination part 20a and the carcass ply 17, is filled a hard rubber 27 of wedge-shaped cross section. And a distance L1, L2 from the external end of the hard rubber 27 and the reinforcement layer 22 to the fold back termination end 20a is set to 5W15 and 5W20cm, respectively. And distance L3 is set to less than 10cm.
COPYRIGHT: (C)1980,JPO&Japio
JP13547678A 1978-11-01 1978-11-01 Pneumatic tire Pending JPS55106805A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13547678A JPS55106805A (en) 1978-11-01 1978-11-01 Pneumatic tire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13547678A JPS55106805A (en) 1978-11-01 1978-11-01 Pneumatic tire

Publications (1)

Publication Number Publication Date
JPS55106805A true JPS55106805A (en) 1980-08-16

Family

ID=15152596

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13547678A Pending JPS55106805A (en) 1978-11-01 1978-11-01 Pneumatic tire

Country Status (1)

Country Link
JP (1) JPS55106805A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471828A (en) * 1981-06-24 1984-09-18 The Toyo Rubber Industry Co., Ltd Pneumatic radial tire having highly durable bead structure
US4510984A (en) * 1981-06-24 1985-04-16 The Toyo Rubber Industry Co., Ltd. Pneumatic radial tire having durable bead structure
US4699194A (en) * 1985-06-26 1987-10-13 Sumitomo Rubber Industries, Ltd. Pneumatic radial tires for heavy vehicles
US5080158A (en) * 1985-05-21 1992-01-14 Sumitomo Rubber Industries, Ltd. Bead reinforcement for a radial tire for heavy duty

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471828A (en) * 1981-06-24 1984-09-18 The Toyo Rubber Industry Co., Ltd Pneumatic radial tire having highly durable bead structure
US4510984A (en) * 1981-06-24 1985-04-16 The Toyo Rubber Industry Co., Ltd. Pneumatic radial tire having durable bead structure
US5080158A (en) * 1985-05-21 1992-01-14 Sumitomo Rubber Industries, Ltd. Bead reinforcement for a radial tire for heavy duty
US4699194A (en) * 1985-06-26 1987-10-13 Sumitomo Rubber Industries, Ltd. Pneumatic radial tires for heavy vehicles

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