Airless tires
The airless tire design addresses weight and rolling resistance issues by incorporating a contact portion, side portions, and side grooves to enhance airflow and heat dissipation, resulting in a lighter, more efficient tire.
JP2026518446APending Publication Date: 2026-06-08TANNUS CO LTD
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- TANNUS CO LTD
- Filing Date
- 2024-03-29
- Publication Date
- 2026-06-08
AI Technical Summary
Technical Problem
Airless bicycle tires increase weight and rolling resistance, reducing performance and worsening energy efficiency due to tire deformation and friction with the ground.
Method used
An airless tire design featuring a contact portion, side portions, and radially arranged side grooves that extend along the tire's circumferential direction, with varying groove lengths and depths to improve airflow and reduce air resistance.
Benefits of technology
The design results in a lighter tire with reduced rolling resistance, increased surface area for better heat dissipation, and improved airflow, minimizing air resistance.
✦ Generated by Eureka AI based on patent content.
Smart Images

Figure 2026518446000001_ABST
Abstract
An airless tire coupled to a rim is disclosed. The airless tire includes a contact portion that extends along the circumferential direction of the tire and has a predetermined width, at least a portion of which contacts the ground when the tire rotates, a coupling portion that is coupled to the rim, side portions that are formed extending from both sides of the contact portion along the tire surface to the coupling portion, and a plurality of side grooves that are arranged radially with respect to the center of rotation of the tire and are formed as recesses in the side portions. The airless tire is lightweight, has low rolling resistance, has excellent heat dissipation due to increased surface area, and can reduce air resistance by improving the airflow along the side of the tire during driving.
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