Non-pneumatic Tire Coupling Member Reinforcement

Solution Overview

Problem

Conventional non-pneumatic tires have limitations in durability and material selection for the coupling member, which is typically made of synthetic resin materials.

Innovation Solution

Incorporating a reinforcing member made of a higher rigidity material, such as metal, embedded within the coupling member formed of synthetic resin materials to enhance durability and adjust strength according to usage conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the coupling member is made of synthetic resin material, then ease of manufacture and cost are improved, but durability and strength are insufficient

Engineering Contradiction:

Improveease of manufactureVSAvoiddurability

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The coupling member is constructed as a composite structure with a synthetic resin material forming the base structure and a reinforcing member (metal wire, rod, or mesh) embedded within it. This composite configuration combines the manufacturing advantages of synthetic resin with the strength and durability of metal materials, resolving the contradiction between ease of manufacture and reliability.

Inventive Principle:

Principle #40Composite materials

2Ease of manufacture

If the coupling member is made of synthetic resin material, then cost and ease of manufacture are improved, but strength and rigidity are insufficient

Engineering Contradiction:

Improveease of manufactureVSAvoidstrength

Core Design Contradiction:

Ease of manufactureVSStrength

Solution Approach 1:

The coupling member is constructed as a composite structure with a synthetic resin material forming the base structure and a reinforcing member (metal wire, rod, or mesh) embedded within it. This composite configuration combines the manufacturing advantages of synthetic resin with the strength and durability of metal materials, resolving the contradiction between ease of manufacture and reliability.

Inventive Principle:

Principle #40Composite materials

Data Source

PatentUS10399381B2Non-pneumatic tire

Publication Date: 2019.09.03 BRIDGESTONE CORP

AI summary

The present invention provides a non-pneumatic tire which is provided with an attachment body (11) attached to an axle, a ring-shaped body (13) which surrounds the attachment body (11) from the outside in a tire radial direction, and a coupling member (15) which displaceably couples the attachment body (11) and the ring-shaped body (13), wherein the coupling member (15) is formed of a synthetic resin material and a reinforcing member is embedded in the coupling member (15).