Bicycle Saddle Co-Vulcanized Shell Alignment

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Solution Overview

Problem

Existing bicycle saddles face issues with misalignment between the fork and reinforcement inserts over time, reduced traction resistance due to wear of the PA/PE fabric, and a complex, time-consuming vulcanization process.

Innovation Solution

A saddle design featuring a co-vulcanized shell made of rigid material, such as plastic, which is integrated with the seat component, simplifying the vulcanization process and reducing misalignment issues, while allowing for adjustable flexibility and improved durability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If metal reinforcements and PA/PE fabric are embedded in the rubber top before vulcanization, then the saddle gains structural strength and traction resistance, but the vulcanization process becomes complex and time-consuming

Engineering Contradiction:
Improvestructural strengthVSAvoidvulcanization process complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The saddle is divided into separate components: a shell made of rigid material (plastic, metal, or composite) and a cushioning element made of foam or rubber. These components are assembled after manufacturing rather than being vulcanized together, simplifying the production process while maintaining structural strength through the rigid shell and comfort through the separate cushioning element.

Inventive Principle:
Principle #1Segmentation

2Strength

If metal reinforcements and PA/PE fabric are embedded in the rubber top before vulcanization, then the saddle gains structural strength and traction resistance, but the production time increases

Engineering Contradiction:
Improvestructural strengthVSAvoidvulcanization time
Core Design Contradiction:
StrengthVSLoss of time

Solution Approach 1:

The saddle components (shell and cushioning element) are manufactured separately and assembled afterward, eliminating the need for prolonged vulcanization processes required when embedding reinforcements and fabric in rubber. This segmentation significantly reduces production time while maintaining structural integrity through the rigid shell.

Inventive Principle:
Principle #1Segmentation

3Manufacturing precision

If rigid material shell is used for the saddle, then misalignment between fork and reinforcement inserts is reduced, but flexibility and comfort may be compromised

Engineering Contradiction:
Improvealignment precisionVSAvoidsaddle flexibility
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The saddle combines a rigid material shell (providing structural stability and precise alignment) with a separate cushioning element made of foam or rubber (providing flexibility and comfort). This composite structure allows each component to fulfill its specific function without compromise.

Inventive Principle:
Principle #40Composite materials

4Strength

If traditional vulcanization process with embedded reinforcements is used, then the saddle achieves initial strength, but alignment problems occur after prolonged use

Engineering Contradiction:
Improveinitial strengthVSAvoidalignment stability
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

By separating the rigid shell from the cushioning element and assembling them after manufacturing, the invention eliminates the misalignment issues that occur with embedded reinforcements in vulcanized rubber. The rigid shell maintains precise alignment of fork and reinforcement inserts over time, while the separate cushioning element remains intact without shifting.

Inventive Principle:
Principle #1Segmentation

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 enhances the efficiency of the vulcanization process, reduces misalignment and wear-related issues, and provides adjustable flexibility and comfort zones, resulting in a more durable and comfortable saddle.

Implementation Method 1

a co-vulcanized shell made of rigid material, such as plastic, which is integrated with the seat component, simplifying the vulcanization process

Methodology Applied
Scientific EffectVulcanization:

Data Source

PatentEP4096992B1Saddle for vehicles, such as bicycles
Publication Date: 2025.04.30 BROOKS ENGLAND
  • EP4096992B1 patent drawingFigure 1~2
  • EP4096992B1 patent drawingFigure 3~4
  • EP4096992B1 patent drawingFigure 5~6

AI summary

The present invention relates to a saddle for vehicles, such as bicycles, motorcycles and the like, comprising a seat component (2) defining a support surface (2a) for a user as well as a fork component (3).