Title:
PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2014/054365
Kind Code:
A1
Abstract:
Provided is a pneumatic tire, whereby resistance to cutting is improved, and it is possible to efficaciously avoid internal faults and improve resilience. This pneumatic tire has carcass layers mounted between a pair of bead parts, the carcass layers being wound from the inner side of the tire to the outer side thereof about a bead core (5) of each bead part. Bead filler is positioned on the outer circumference side of the bead core, and belt layers are positioned in the tread part on the outer circumference side of the carcass layers. Protective layers including organic fiber cords are positioned in sidewall parts on the outer side of the carcass layers. The upper end parts of the protective layers are positioned along the carcass layers from outer end locations of the belt layers, between a location 20mm toward the inner side in the tire width direction and a location 15mm toward the outer side in the tire width direction. The lower end parts of the protective layers are positioned between main body portions of the carcass layers and the bead filler. Rubber layers having an overlap length between the protective layers and the bead filler of 10mm or more, a thickness between the protective layers and the main body portions of the carcass layers of 0.5-2.0mm, and a tanδ at 60° of 0.12 or less, are interposed between the protective layers and the main body portions of the carcass layers.
Inventors:
NIWA MASAKAZU (JP)
Application Number:
PCT/JP2013/073618
Publication Date:
April 10, 2014
Filing Date:
September 03, 2013
Export Citation:
Assignee:
YOKOHAMA RUBBER CO LTD (JP)
International Classes:
B60C13/00; B60C9/08; B60C15/06
Foreign References:
| JPS624615A | 1987-01-10 | |||
| JP2010023607A | 2010-02-04 | |||
| JP2010120478A | 2010-06-03 | |||
| JPH1120420A | 1999-01-26 |
Attorney, Agent or Firm:
Seiryu Patent Professional Corporation et al. (JP)
Clear stream international patent business corporation (JP)
Clear stream international patent business corporation (JP)
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