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Heavy Duty Pneumatic Radal Tire for Running on Rough Ground Surface Background of the Invention
| Content Provider | Semantic Scholar |
|---|---|
| Copyright Year | 2017 |
| Abstract | In a heavy duty pneumatic radial tire, at least one carcass layer is provided between right and left bead portions and at least two belt layers formed of steel cords which exhibit a breaking elongation of 4% or leSS are arranged in an outer periphery of the carcass layer in a tread portion. The belt layers are composed of at least one upper belt layer (A) and at least one lower belt layer (B). The upper belt layer (A) has a belt width that is 0.6 times or less a carcass line maximum width SW of the carcass layer at a tire section and the lower belt layer (B) has a belt width such that both end portions thereof extend to tread shoulder portions. An inclination angle of the steel cords of the lower belt layer (B) relative to a tire circumferential direction is set to be larger than that of the upper belt layer (A). A ratio (MbN)/(Mb N) of a product of a bending rigidity Mb per Steel cord of the lower belt layer (B) and the number N of the steel cords per unit width of the lower belt layer (B) to a product of a bending rigidity Mb per steel cord of the upper belt layer (A) and the number N of the steel cords per unit width of the upper belt layer (A) is set to be at a range of 0.2 to 0.65. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://patentimages.storage.googleapis.com/38/4a/9c/5fe370613a2547/US6125899.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
