Shock-absorbing Shoe with Movable Outsole Spikes

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Solution Overview

Problem

Existing non-slip shoes fail to provide effective shock absorption and stability on both icy and general roads, with existing solutions either compromising on traction when snow or ice is attached or being cumbersome and uncomfortable to wear.

Innovation Solution

A shoe design featuring an outsole with accommodation grooves, support members, movable members, and a resilient member that automatically protrude or retract to absorb shock and maintain traction by adjusting to the ground contact angle, incorporating an auxiliary support member for stability and a recessed contact end for enhanced grip on icy surfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If spikes are built in the outsole to prevent slipping on ice, then non-slip function is improved, but shock absorption is worsened because spikes do not protrude on paved roads and shock is directly transmitted to the wearer's sole

Engineering Contradiction:
Improvenon-slip functionVSAvoidshock transmission
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies the dynamics principle by designing movable members that can automatically protrude from or retrieve into the outsole based on the loading conditions. The movable members are equipped with resilient members that enable them to protrude when load is applied during walking, providing non-slip function on icy roads, and retract when no load is applied, preventing shock transmission to the wearer's sole on paved roads.

Inventive Principle:
Principle #15Dynamics

2Reliability

If anti-skid members are attached to the shoe to prevent slipping, then non-slip function is improved, but ease of operation is worsened because attachment and detachment is cumbersome and comfortable fit is reduced

Engineering Contradiction:
Improvenon-slip functionVSAvoidcomfortable fit
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent applies the merging principle by integrating the anti-skid function directly into the shoe structure through movable members that are built into the outsole. This eliminates the need for separate anti-skid members that need to be attached or detached, providing a comfortable fit while maintaining non-slip function on icy roads.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If the outsole is designed to be simple for comfort, then ease of operation is improved, but non-slip function is worsened when snow or ice is attached during walking

Engineering Contradiction:
Improvecomfortable fitVSAvoidnon-slip function
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies the dynamics principle by designing the outsole with movable members that automatically adjust their state based on loading conditions. The movable members protrude when load is applied during walking to provide non-slip function on icy roads, and retract when no load is applied to maintain comfortable fit and simplicity during normal walking.

Inventive Principle:
Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The shoe effectively absorbs shock and prevents slipping on icy roads while maintaining stability and comfort on general roads, ensuring safe and long-term wear by dynamically adjusting to ground contact and using an auxiliary support member to maintain shape and traction.

Implementation Method 1

a resilient member which is disposed in the first guide portion, of which an upper end comes into contact with a bottom surface of the pressing member, and a lower end comes into contact with a top surface of the latch portion of the movable member

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

when a load is applied to the outsole during walking, the spikes built in the outsole protrude from a bottom surface of the outsole

Methodology Applied
Scientific EffectImpact Force: Impact Force

Data Source

PatentEP3704988B1Shock-absorbing and slip-preventing shoe
Publication Date: 2023.09.27 SHINWON CHEM PROD CO LTD
  • EP3704988B1 patent drawingFigure 1
  • EP3704988B1 patent drawingFigure 2
  • EP3704988B1 patent drawingFigure 3

AI summary

Provided is a non-skid shoe capable of absorbing shock including: an outsole; a plurality of accommodation grooves formed on the outsole, the accommodation groove including a groove portion, and a penetrated portion extending from a center of a bottom surface of the groove portion and penetrating a bottom surface of the outsole; a support member which is accommodated in the respective accommodation grooves, and includes a support portion disposed in the groove portion, a first guide portion formed at a center of the support portion, and a second guide portion extending from a center of a bottom surface of the first guide portion and penetrating a bottom surface of a center of the support portion; a movable member which is disposed in the respective support members, and includes a latch portion and a protruding portion ; a pressing member which is engaged to an upper portion of the first guide portion to seal the upper portion; a resilient member which is disposed in the first guide portion; and a midsole engaged to the top surface of the outsole.