Diagonal Bead Chain Stress-Reducing Buckle

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Solution Overview

Problem

Existing non-slip tire chains for snow and ice-covered roads suffer from reduced service life due to excessive stress on steel cables, leading to potential vehicle damage and accidents, especially at high speeds.

Innovation Solution

A diagonal angle pearl chain with stress-reducing buckles and a 'Z' shaped transition chain design that distributes stress along the steel cables, using connectors with shrinking holes to alleviate horizontal shear forces and reduce friction at the roots of the cables, thereby prolonging the service life of the steel cables.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a steel plate or steel wire coiled ball reacts with the steel cable in the non-slip chain, then the non-slip function is achieved, but the steel cable tends to break and service life is reduced

Engineering Contradiction:
Improvenon-slip functionVSAvoidservice life of steel cable
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

A stress-reducing buckle is introduced as an intermediary component between the steel cable and the steel plate/coiled ball. This buckle distributes and reduces the stress concentration on the steel cable during operation, preventing cable breakage while maintaining the non-slip function. The buckle acts as a mediator that protects the steel cable from direct excessive stress.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The mounting holes in the stress-reducing buckle are designed to gradually incline outward from the lateral cable mounting portion, creating a tapered geometry that changes the stress distribution parameters. This parameter change allows the stress to be distributed more evenly along the steel cable rather than concentrated at a single point, thereby extending service life.

Inventive Principle:
Principle #35Parameter changes

2Duration of action of moving object

If the mounting holes are shrunk to form strip-shaped holes in the connector, then friction at the roots of cables is reduced, but manufacturing complexity increases

Engineering Contradiction:
Improveservice life of steel cableVSAvoidmanufacturing of connector
Core Design Contradiction:
Duration of action of moving objectVSEase of manufacture

Solution Approach 1:

The strip-shaped holes are designed with a gradual inclination rather than a straight configuration. This dynamic geometry allows the hole to accommodate cable movement while reducing friction through its angled design. The inclination angle is optimized to balance friction reduction with manufacturing feasibility.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The mounting holes are transformed into strip-shaped holes with specific dimensional parameters - gradually inclining outward at controlled angles. This parameter change optimizes the friction characteristics while maintaining manufacturability through standard hole-drilling and shrinking processes.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS10493810B2Diagonal beads chain minus stress buckle and the diagonal beads chain
Publication Date: 2019.12.03 DEQING GENERAL IND CO LTD
  • US10493810B2 patent drawing
  • US10493810B2 patent drawing
  • US10493810B2 patent drawing

AI summary

An automotive tire non-skid device for snowfields to increase adhesion to pavement covered with ice or snow, in particular to a diagonal bead chain stress reducing pinch plate and a diagonal bead chain. Through configuration of stress reducing pinch plates and stress reducing transition chains disposed on two sides of a second connecting assembly, concentrated stress at the connector roots of steel cables of the stress reducing transition chains are isolated, dispersed and relieved, and the service life of the steel cables are prolonged. At the same time, the present invention has the advantages of simple structure, stable performance, convenient modification and low manufacturing cost.