Spiked tires
Patent Information
- Application Number
- DE602023002546
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2023-05-08
- Publication Date
- 2025-03-26
- Estimated Expiration
- 2043-05-08
AI Technical Summary
Winter tires face challenges in providing good grip on icy surfaces without excessive road wear, as studs increase traction but also wear down the road surface, and existing tires struggle to maintain performance as temperatures fluctuate between freezing and warm conditions.
A studded pneumatic tire design featuring a circumferential tread with a cap layer, an intermediate layer, and an underlayer, where the studs are arranged to penetrate through the cap and intermediate layers into the underlayer, with the underlayer made of a specific rubber compound that softens in warm conditions to retract the stud and reduce wear, while the intermediate layer maintains stiffness to support the tire.
The tire achieves improved ice grip on icy surfaces, reduced road wear, and lower noise levels by allowing the stud to retract into the tread in warm conditions, maintaining handling properties and reducing braking distance.