Non-pneumatic tire
CN117295619BActive Publication Date: 2026-07-07BRIDGESTONE CORP
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BRIDGESTONE CORP
- Filing Date
- 2021-12-01
- Publication Date
- 2026-07-07
AI Technical Summary
Technical Problem
Existing non-pneumatic tires struggle to simultaneously achieve ride comfort and durability with their small diameter.
Method used
A resin composition is used as the skeleton component to ensure that the flexural modulus of elasticity is below 247 MPa at -20°C and above 32 MPa at 60°C, and the tire diameter in the radial direction is below 35 cm. Thermoplastic elastomers and thermoplastic resins are used as the main materials, and appropriate additives are added to improve performance.
Benefits of technology
It achieves both ride comfort and durability over a wide temperature range, and maintains a good performance balance, especially in low and high temperature environments.
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Smart Images
Figure CN117295619B_ABST
Abstract
The problem to be solved by the present invention relates to providing a non-pneumatic tire which realizes both ride comfort and durability despite having a small diameter size. The solution is a non-pneumatic tire (1) using a resin composition as a skeleton member, characterized in that the resin composition has a flexural modulus at -20°C according to ISO 178 of 247 MPa or less and a flexural modulus at 60°C according to ISO 178 of 32 MPa or more, and a diameter D in the tire radial direction is 35 cm or less.
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