Straddle Vehicle Tail Lamp Rigidity and Flasher Visibility
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Solution Overview
Problem
Existing tail lamp designs on straddle type vehicles face challenges in achieving both enhanced attachment rigidity and improved visibility of flashers when they are disposed separately from the tail lamp on the rear vehicle body cover, as they tend to compromise on either visibility or rigidity.
Innovation Solution
The design incorporates a tail lamp with a body portion and side portions extending beyond the flashers, which are fixed to the vehicle body, and a light-shielding portion between the tail lamp's light source and flashers to prevent light interference, enhancing attachment rigidity and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the left and right flashers are disposed separately from the tail lamp on the rear portion of the vehicle body cover, then the visibility of the flashers is improved, but the attachment rigidity of the tail lamp is lowered
Solution Approach 1:
The tail lamp assembly is segmented into a main body portion and separate side portions that extend forward. The side portions are positioned beyond the rear ends of the flashers and are fixed to the vehicle body, creating separate attachment points that enhance rigidity without interfering with flasher visibility.
Solution Approach 2:
The side portions of the tail lamp extend in the longitudinal dimension beyond the rear ends of the flashers, creating a three-dimensional arrangement where the tail lamp's attachment points are positioned forward of the flashers. This spatial separation in the longitudinal dimension allows both flasher visibility and tail lamp rigidity to be optimized simultaneously.
2Illumination intensity
If the flashers are disposed separately from the tail lamp, then the visibility of flashers is improved, but light from the tail lamp interferes with light from the flasher
Solution Approach 1:
A light-shielding portion is extracted and integrated into the tail lamp assembly, positioned specifically between the tail lamp light source and the flashers. This light-shielding portion blocks harmful light from the tail lamp from reaching the flashers, eliminating light interference while preserving flasher visibility.
Solution Approach 2:
The light-shielding portion acts as an intermediary element between the tail lamp light source and the flashers. It selectively blocks light paths that would cause interference while allowing the flashers to maintain their visibility function, mediating between the two light sources.
Data Source
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AI summary
A tail lamp 103 includes a body portion 103a arranged on a rear portion of a vehicle, and side portions 103b, 103c extending from the body portion 103a toward the front along both side surfaces in the direction of vehicle width. In this embodiment, the side portions 103b, 103c of the tail lamp 103 extend to the front beyond rear ends of the flashers 101. The tail lamp 103 includes a light-shielding panel 304 arranged between the light source of the tail lamp 103 and the flashers 101. This arrangement provides good visibility of left and right flashers and enhanced attachment rigidity of a tail lamp.