Motorcycle Position Lamp Arrangement in Fairing Air Intake
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Solution Overview
Problem
Position lamps on motorcycles often compromise between being inconspicuous and providing adequate illumination and light distribution, as making them smaller to reduce conspicuousness can hinder light distribution capabilities.
Innovation Solution
A lamp arrangement featuring a fairing with a depressed opening that directs light inward, allowing the lamp to be mounted on the inner peripheral surface, with a light-emitting surface inclined to converge at the center and positioned above to minimize external visibility when off and maximize illumination when on, utilizing existing air intake openings to maintain appearance and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the position lamp is made smaller to reduce conspicuousness, then the appearance becomes less conspicuous, but the required amount of light distribution cannot be secured
Solution Approach 1:
The patent positions the lamp on the inner peripheral surface of a recessed opening rather than on the flat outer surface, utilizing the third dimension (depth) to hide the lamp when off while maintaining adequate light distribution when on. The recessed opening creates a spatial relationship where the lamp is concealed from external view but still provides sufficient illumination forward.
2Illumination intensity
If the position lamp is arranged on the front portion intermediate of left and right directions, then the required range of illumination and light distribution are secured, but the presence of the position lamp becomes too conspicuous
Solution Approach 1:
The lamp is nested within the recessed opening formed in the fairing, similar to a doll within a doll. The opening is depressed rearwardly from the fairing surface, creating a nested structure where the lamp unit is housed within the fairing's recessed area, concealing it when off while allowing it to function when on.
Solution Approach 2:
By moving the lamp into the recessed opening (utilizing depth dimension), the lamp's position is changed from the flat outer surface to an inner peripheral surface, reducing conspicuousness while maintaining illumination effectiveness.
Data Source
AI summary
A fairing (17) for covering a front portion of a motorcycle is formed with an air intake opening (30) through which an intake air (A) is introduced towards a motorcycle combustion engine (E), and a front face (73) of a covering (72), which is a light emitting surface for a position lamp (40), is arranged above an inner peripheral face (31) of the air intake opening (30). The front face (73) of the covering (72) is downwardly inclined from front towards rear when viewed from side and projects forwards towards a point intermediate of the width of the motorcycle when viewed front.