Motorcycle Headlamp Cover Design with Edge Segmentation
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Solution Overview
Problem
Conventional headlamp devices for straddle-type vehicles prioritize light emission characteristics over design flexibility, limiting the ability to improve the external appearance of the cover member.
Innovation Solution
The headlamp device incorporates a cover member with a transmission section featuring a first surface and a second surface bent relative to each other, with an edge on the ridge line extending through gaps between emission ports, preventing light from contacting the edge and maintaining required light emission characteristics while allowing for flexible design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the cover member is designed with a simple structure to maintain good light emission characteristics, then light emission performance is improved, but design flexibility of the external appearance is limited
Solution Approach 1:
The cover member is divided into multiple transmission sections, each with independent edges extending through gaps between emission ports. This segmentation allows each section to be designed independently for aesthetic purposes while maintaining overall light transmission functionality, thus resolving the contradiction between simple structure and design flexibility.
Solution Approach 2:
Different regions of the cover member are given different properties: the transmission sections have edges positioned to avoid light contact, while other regions can be freely designed for appearance. This local differentiation allows aesthetic design in non-critical areas without compromising light emission characteristics.
2Adaptability or versatility
If the cover member is designed with complex external appearance features, then design flexibility is improved, but light emission characteristics may be degraded
Solution Approach 1:
The design freedom is extended to the third dimension by creating bent surfaces with ridges and edges. The transmission sections can have complex 3D shapes including angled surfaces and protruding edges, allowing rich external appearance while the edge positioning ensures light paths remain unaffected.
3Shape
If edges are provided on the ridge line of the transmission section for aesthetic purposes, then external appearance is improved, but light scattering may occur
Solution Approach 1:
The potential harmful effect of edges causing light scattering is converted into a beneficial design feature. By strategically positioning edges to extend through gaps between emission ports, the design utilizes the edge structure for aesthetic purposes while the gap positioning ensures light paths bypass the edges, eliminating scattering issues.
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
This configuration enables the design of a more flexible external appearance for the cover member while maintaining good light emission characteristics, reducing traveling resistance, and preventing light scattering.
Implementation Method 1
a transmission section which transmits in a forward direction of a vehicle body, the light emitted from the light source and output through the plurality of emission ports
Data Source
AI summary
A head lamp device of a straddle-type vehicle, comprises at least one lamp unit including at least one light source and a plurality of emission ports through which light emitted from the light source is output; and a cover member including a transmission section which transmits in a forward direction of a vehicle body, the light output through the plurality of emission ports, and covering a front portion of the lamp unit, wherein the transmission section includes a first surface, and a second surface bent with respect to the first surface, and an edge is provided on a ridge line formed by the first surface and the second surface, and wherein the edge extends through a gap formed between two adjacent emission ports of the plurality of emission ports.