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Japanese Patent JP7095401

B2

To provide a pneumatic tire capable of preventing failures caused by stress concentration onto a carcass layer end part while improving a structure of a bead part and reducing a tire weight, and suppressing the occurrence of pinch cut in a side wall part.SOLUTION: A pneumatic tire is such that: a bead core 5 having a wedge-shaped outer shape, a filler layer 6, and a rubber reinforcement layer 7 are provided in each of a pair of bead parts 3; a first carcass layer 41 is laid between the pair of bead parts 3; the first carcass layer 41 is configured of a body part 41A extending from a tread part 1 to each of the bead parts 3 via each of side wall parts 2, and a folding part 41B folded while being bent along the circumference of the bead core 5 in each of the bead parts 3; the folding part 41B is passed between the bead core 5 and the filler layer 6, and is terminated in a position between the body part 41A and the filler layer 6; and the rubber reinforcement layer 7 is extended in a tire radial direction along the first carcass layer 41 and the tire width direction outside of the filler layer 6 so as to be overlapped on the tire radial direction outer end of the filler layer 6.SELECTED DRAWING: Figure 2

Yuki Sasaya
Masaaki Chang'an
Ryohei Takemori
Atsushi Tanno
Kei Koda
Atsushi Matsuda

JP2018097173A

July 05, 2022

May 21, 2018

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THE YOKOHAMA RUBBER CO.,LTD.

B60C15/00; B60C9/02; B60C15/04; B60C15/06

JP2002507515A
JP2000351306A
JP2010000901A
JP59023705A
JP2013052720A
JP2008222053A
JP2002283814A
JP6010227A
JP2008155728A
JP10035231A
JP4066309A

US5779829
US6530411

Clear stream international patent attorney corporation
Daytime Takayoshi
Sakazawa Masao

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