Seat Post Lighting Integrated Into a Hollow Bicycle Component

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Solution Overview

Problem

Existing bicycle lights attached to the frame negatively impact aesthetics and aerodynamics, are susceptible to theft or damage, and can lead to structural alteration and penetration of dust, water, and dirt through drill holes.

Innovation Solution

A bicycle component, such as a seat post, with a hollow body containing a lighting device that emits light through a transparent outer surface, featuring a translucent window and an integrated lighting system within a composite material structure, ensuring the light source does not penetrate through opaque areas, and includes a resilient design to absorb forces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If external lights are attached to the bicycle frame, then bicycle lighting function is achieved, but aesthetics and aerodynamics are compromised

Engineering Contradiction:
Improvelighting functionVSAvoidaesthetics and aerodynamics
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The lighting device is merged with the hollow body structure, integrating the light source, power supply, and control unit into a single unified component that maintains the aesthetic appearance of the bicycle frame while providing reliable lighting functionality

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The lighting device is nested within the hollow body, with the light source, battery, and control electronics contained inside the existing structural element, eliminating the need for external attachments and preserving aerodynamic contours

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If external lights are used, then lighting function is provided, but theft and damage risk increases

Engineering Contradiction:
Improvelighting functionVSAvoidtheft and damage susceptibility
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

By combining the lighting device with the integrated hollow body structure, the lighting system becomes part of the bicycle's permanent components, making it significantly more difficult to steal or damage compared to external attachments

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If lights are integrated through holes in the bicycle component, then lighting function is achieved, but structural strength is reduced

Engineering Contradiction:
Improvelighting functionVSAvoidstructural strength
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The lighting device is merged with the hollow body structure, utilizing the existing hollow space for housing components rather than creating holes through the structure, thereby maintaining full structural integrity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The lighting components are nested within the existing hollow body cavity, eliminating the need for penetrating holes and preserving the complete structural strength of the bicycle component

Inventive Principle:
Principle #7Nested doll (Nesting)

4Reliability

If holes are provided in the bicycle component for light integration, then lighting function is achieved, but corrosion resistance is reduced

Engineering Contradiction:
Improvelighting functionVSAvoidcorrosion susceptibility
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The lighting device is merged with the sealed hollow body structure, allowing the light to shine through the outer surface without requiring holes that would expose the internal structure to corrosive elements

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The lighting components are nested within the sealed hollow body, which acts as a protective barrier against dust, water, and dirt, preventing corrosion of internal components

Inventive Principle:
Principle #7Nested doll (Nesting)

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

Provides integrated bicycle lighting that maintains aesthetics and aerodynamics while preventing structural damage and dust/water ingress, enhancing durability and functionality.

Implementation Method 1

The outer surface itself, in particular the material of the outer surface, is preferably translucent

Methodology Applied
Scientific EffectLight transmission through translucent material: Refraction

Implementation Method 2

The hollow body is resilient, in particular designed as a leaf spring

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP4488151B1Bicycle component, seat post, and bicycle
Publication Date: 2026.05.13 CANYON BICYCLES
  • EP4488151B1 patent drawingFigure 1
  • EP4488151B1 patent drawingFigure 2
  • EP4488151B1 patent drawingFigure 3a

AI summary

A bicycle component (10) comprising a hollow body (12), in particular a tubular one, and a lighting device (14) arranged within the hollow body (12), wherein the lighting device (14) emits light through a surface (16) of the hollow body (12) to provide bicycle illumination. Furthermore, a seat post (100) and a bicycle (1000).