| 摘要 |
A pitch arrangement method of a tire tread pattern is provided to considerably improve durability and lifespan of a tire by enhancing abrasion resistance of blocks by equalizing share of blocks of various sizes. A pitch arrangement method of a tire tread pattern, comprises a tread(1), a sidewall(2), and a bead part(3). The pitch arrangement method arranges blocks(4) formed on the tread part by respective different unit pitches. Presuming that a reference symbol 'P(i)' refers to width of an i-th pitch, 'P(t)' refers to the number of types of total pitch, 'N(i)" refers to the number of the i-th pitch, 'N(t)' refers to the number of total pitches, and 'TCL' refers to the whole length of circumference of the tire, the pitch of the blocks is split according to a following equation: [1/P(t)*100(%)]-5%=P(i)*N(i)/TCL(%)<=[1/P(t)*100(%)]+5%.
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