Pneumatic tires
The pneumatic tire design addresses the challenge of heel and toe wear resistance and traction performance on snowy and muddy roads by incorporating a unique tread pattern with inclined portions and shoulder slits, enhancing both traction and wear resistance.
JP7648431B2Active Publication Date: 2025-03-18TOYO TIRE CORP
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Patent Information
- Application Number
- JP2021073855
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-04-26
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2041-04-26
AI Technical Summary
Technical Problem
Existing pneumatic tires face challenges in achieving high heel and toe wear resistance while maintaining traction performance on snowy and muddy roads.
Method used
The pneumatic tire design includes a tread with a specific arrangement of shoulder blocks, inclined portions, and shoulder slits. The shoulder blocks feature a first inclined portion with a protrusion and a second inclined portion with a recess, arranged alternately to enhance traction and reduce wear.
Benefits of technology
This design improves traction on snowy and muddy surfaces while reducing heel and toe wear, ensuring better performance and longevity of the tire.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide a pneumatic tire that has high heel-and-tor wear resistance, while ensuring a traction performance in a snowy road or a muddy road.SOLUTION: A tread of a pneumatic tire is equipped with a shoulder main groove, a plurality of shoulder slits, and a plurality of shoulder blocks divided by the shoulder main groove and the shoulder slits. The shoulder block is equipped with an inclined portion inclined inward in a tire diametrical direction from the shoulder block outward in a tire axial direction. The inclined portion is equipped with a first inclined portion, and a second inclined portion that has a recessed depressed inward in the tire axial direction than the first inclined portion. Of a pair of shoulder slits dividing the inclined portion, the first inclined portions are adjacent to each other across the one shoulder slit, and the second inclined portions are adjacent to each other across the other shoulder slit.SELECTED DRAWING: Figure 2
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