Bicycle Mudguard Hollow Chamber Segmentation

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Solution Overview

Problem

Existing two-wheeler mudguards lack sufficient stability against deformation, particularly in the middle area between hollow chambers, which affects their ability to securely cover vehicle wheels without compromising appearance when accommodating lines and fastening means.

Innovation Solution

A two-wheeler mudguard with an arc-shaped outer and inner walls forming a single piece, featuring multiple hollow chambers accessible through bores, which enhances stability and allows for the integration of structural elements like electrical lines and fastening means without affecting the appearance, with closed ends to prevent dirt and moisture ingress.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If the mudguard is designed with hollow chambers for accommodating structural elements, then the appearance is improved and structural elements can be hidden, but the stability against deformation is reduced

Engineering Contradiction:
ImproveappearanceVSAvoidstability against deformation
Core Design Contradiction:
ShapeVSStability of the object's composition

Solution Approach 1:

The cavity is divided into multiple hollow chambers by partitions, with each chamber accessible through bores in the outer wall. This segmentation allows structural elements to be distributed across multiple compartments, maintaining aesthetic appearance while providing sufficient structural support through the partition walls and chamber structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The middle area of the mudguard is reinforced with additional partitions creating multiple hollow chambers, providing localized structural support exactly where the deformation issue occurs. This targeted reinforcement maintains overall appearance while solving the specific stability problem in the middle section.

Inventive Principle:
Principle #3Local quality

2Shape

If lines and fastening means are accommodated within the mudguard structure, then the appearance is improved, but the manufacturing complexity increases

Engineering Contradiction:
ImproveappearanceVSAvoidmanufacturing complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The cavity is segmented into multiple hollow chambers accessible through bores in the outer wall. This segmentation allows lines and fastening means to be routed through specific chambers and bores, organizing complex internal elements into manageable sections while maintaining a clean external appearance and simplifying manufacturing by providing predetermined pathways.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Structural elements such as lines and fastening means are nested within the hollow chambers of the mudguard structure. The bores in the outer wall provide access points for these nested elements, allowing them to be integrated into the mudguard without compromising appearance or requiring complex external routing.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Ease of operation

If the hollow chambers are open for accessing structural elements, then the ease of operation is improved, but the protection against dirt and moisture is reduced

Engineering Contradiction:
Improveaccess to structural elementsVSAvoiddirt and moisture ingress
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The cavity is divided into multiple sealed hollow chambers, each accessible through its own bore in the outer wall. This segmentation allows individual chambers to be accessed and serviced independently while maintaining the integrity and sealing of other chambers, providing both ease of operation for maintenance and protection against harmful factors.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3000701B1Bicycle mudguard
Publication Date: 2019.05.01 BUCHEL GMBH & CO FAHRZEUGTEILEFAB
  • EP3000701B1 patent drawingFigure 1~3

AI summary

The invention relates to a two-wheeled mudguard, which is to be arranged at a distance from an outer circumference of the two-wheeled vehicle to cover at least one associated wheel and which is designed as an extruded profile with at least one hollow chamber (16, 18, 20). The invention is characterized in that the two-wheeled mudguard has an arcuate outer wall (4) and an likewise arcuate inner wall (6), and that the outer wall (4) and the inner wall (6) are integrally formed at their side edges (8, 10) and surround a cavity which is subdivided by partitions (12, 14) into several hollow chambers (16, 18, 20) which are arranged next to each other.