Motorcycle Headlamp Structural Member Polymer Weight Reduction
Solution Overview
Problem
Conventional headlamp assemblies for two-wheeled vehicles are heavy, leading to sagging and increased complexity, which affects maneuverability and requires frequent servicing due to the use of integral cowl assemblies and metal brackets, compromising aesthetics and serviceability.
Innovation Solution
A headlamp assembly with a structural member made of polymer, featuring multiple split covers and a single mounting system for vehicular parts, providing flexibility, reduced weight, and easier servicing, while eliminating the need for heavy metal brackets and integral cowl assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If dual lights are introduced to achieve high capacity and wide-angle view, then illumination intensity is improved, but weight increases
Solution Approach 1:
The headlamp assembly is divided into modular components including a headlamp housing, at least one headlamp unit, and a structural member. This segmentation allows for optimized weight distribution and enables the use of lighter materials in specific components while maintaining overall illumination performance through strategic placement of light sources.
Solution Approach 2:
The patent employs composite construction by using a structural member made of polymer material instead of traditional metal. This composite approach reduces weight while maintaining structural integrity to support the headlamp units and housing, thereby improving luminosity without proportionally increasing weight.
2Illumination intensity
If heavy headlamp assembly is used to achieve high capacity, then illumination intensity is improved, but maneuverability deteriorates
Solution Approach 1:
By segmenting the headlamp assembly into separate functional modules (housing, structural member, headlamp units), the patent enables strategic placement of mass and optimization of the center of gravity. This reduces unnecessary weight that would adversely affect steering inertia and maneuverability while preserving required illumination capacity.
Solution Approach 2:
The patent changes the material parameter of the structural member from metal to polymer, significantly reducing density and weight. This parameter change directly addresses the maneuverability issue by reducing steering inertia while maintaining structural support capabilities for the illumination system.
3Strength
If integral cowl assembly is used to support headlamp, then structural strength is improved, but device complexity increases
Solution Approach 1:
The patent divides the support structure into distinct components: a structural member and a headlamp housing that can be assembled together. This segmentation replaces the complex integral cowl assembly with simpler, modular parts that are easier to manufacture, assemble, and service while providing equivalent structural support strength.
Solution Approach 2:
The structural member is designed to perform multiple functions: supporting the headlamp units, providing mounting points for the housing, and serving as a structural attachment point to the vehicle frame. This multi-functionality eliminates the need for separate integral cowl assemblies, reducing device complexity while maintaining strength.
4Strength
If metal brackets are used to support headlamp assembly, then structural strength is improved, but weight increases
Solution Approach 1:
The patent replaces metal brackets with a structural member made of polymer material. This composite material substitution maintains the necessary structural strength for support while significantly reducing weight, directly resolving the contradiction between strength and weight.
Solution Approach 2:
The patent changes the material parameter from metal to polymer, altering density and mechanical properties. This parameter change enables the structural member to provide adequate support strength at a fraction of the weight of traditional metal bracket systems.
5Stability of the object's composition
If headlamp assembly is made heavy, then structural stability is improved, but frequency of servicing increases
Solution Approach 1:
The modular segmented design with separate headlamp units, housing, and structural member enables easy disassembly and servicing of individual components without affecting the stability of the entire assembly. Each module can be independently serviced or replaced, reducing servicing frequency while maintaining overall assembly stability.
Data Source
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AI summary
The present invention relates exclusively, to a headlamp assembly for a two-wheeled vehicle. The at least one headlamp unit (111) includes a cowl assembly (200C). the cowl assembly (200C) and the at least one headlamp unit (111) are coupled to a structural member (300) configured to be attached to at least a portion of the vehicle body frame (102), said structural member (300) is configured to receive at least a portion of at least one mirror assembly (201, 202), a display member bracket (207), and a guiding-member assembly (208).