Adjustable Elasticity Structure for Physical Training Devices

Solution Overview

Problem

Conventional physical training devices have fixed elasticity, leading to uneven stress distribution and potential damage, and fail to adjust to different user needs.

Innovation Solution

An elasticity adjustment structure using a combination of relatively soft and hard elastomers with adjustable overlapping areas to modify the elastic curve, reducing stress concentration and allowing for customizable elasticity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If fixed elasticity elastomer is used in conventional punching devices, then the structure is simple, but the elasticity cannot be adjusted for different user needs

Engineering Contradiction:

Improveelasticity adjustabilityVSAvoidstructure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The elastomer is divided into multiple segments with different hardness values (first elastomer segment, second elastomer segment, third elastomer segment). Each segment can be independently selected or combined to achieve different elasticity levels, allowing customization without requiring completely different structures.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different portions of the elastomer structure have different hardness properties. The first elastomer segment has a first hardness value, the second elastomer segment has a second hardness value different from the first, and the third elastomer segment has a third hardness value. This local variation in material properties enables adjusted elasticity while maintaining a unified structural framework.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If steel tube is used to change elastomer elasticity, then elasticity can be adjusted, but stress concentrates at the intersection point causing premature aging and impairment

Engineering Contradiction:

Improveelasticity adjustabilityVSAvoidstructure reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The hardness parameter of the elastomer is changed by selecting different elastomer segments with different hardness values. This allows elasticity adjustment through material parameter selection rather than through structural modifications like steel tubes that create stress concentration points.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The elastomer structure uses composite material segments with different hardness values. By combining elastomer segments of varying hardness in series, the system achieves elasticity adjustment while maintaining uniform stress distribution throughout the material, avoiding the stress concentration problems associated with steel tube reinforcements.

Inventive Principle:

Principle #40Composite materials

3Ease of manufacture

If single hardness elastomer is used, then manufacturing is simple, but stress distribution is uneven leading to concentrated stress and potential damage

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidstress distribution uniformity

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

Different portions of the elastomer structure have different hardness properties. The first elastomer segment has a first hardness value, the second elastomer segment has a second hardness value different from the first, and the third elastomer segment has a third hardness value. This local variation in material properties enables adjusted elasticity while maintaining uniform stress distribution throughout the material, avoiding the stress concentration problems associated with steel tube reinforcements.

Inventive Principle:

Principle #3Local quality

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 solution provides a smooth elastic curve, reduces material load, and enhances product safety and reliability by allowing adjustable elasticity to meet various user needs.

Implementation Method 1

one relatively soft first elastomer and at least one relatively hard second elastomer. By changing the overlapping area of these two elastomers with different hardness, the elasticity of the elasticity adjustment structure may be adjusted

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS9956466B2Punching elasticity adjustment structure

Publication Date: 2018.05.01 FU TUNG CHIEN

AI summary

The present invention discloses an elasticity adjustment structure of physical training device which comprise one elastomer adjustment set; said elastomer adjustment set further comprises one first elastomer and one second elastomer. Overlapping the said second elastomer and said first elastomer with different rigidities at different depth positions to create a smooth elastic curve of said elastomer adjustment set; as a result the elasticity of said elasticity adjustment structure may be adjusted in accordance with different needs.