Motorcycle Front Cover Segmentation for Large Headlight and Low Height
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Solution Overview
Problem
The challenge is to design a motorcycle with large-diameter wheels and a large headlight while maintaining a low vehicle height, which requires a balance between creating sufficient space in the front cover for the headlight and allowing for easy maintenance of the handle cover, as the existing designs face difficulties in reducing the vertical length of the front cover and detaching the handle cover due to their proximity.
Innovation Solution
The motorcycle features a vertically split handle cover structure with a lower handle cover having a greater vertical length than the upper handle cover, allowing for a larger space in the upper front cover for the headlight and enabling easier maintenance by providing separate openings for the wire portion and throttle wire, which are covered by the middle handle cover, facilitating detachment and accessibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the vertical length of the front cover is increased to accommodate a large headlight, then the headlight size is improved, but the vehicle height increases
Solution Approach 1:
The front cover is divided into upper and lower parts, with the lower front cover having a greater vertical length than the upper front cover. This segmentation allows the headlight to be accommodated in the upper portion while the lower portion extends downward to maintain overall compact height.
Solution Approach 2:
The handle cover is divided into upper and lower handles covers that can be detached separately. This dimensional separation allows maintenance access without requiring complete disassembly, resolving the conflict between compact design and serviceability.
2Length of moving object
If the top end of the front cover is located at a higher position to reduce vehicle height, then the vehicle height is improved, but the vertical distance to the handle cover is reduced
Solution Approach 1:
The handle cover is segmented into upper and lower portions that can be independently detached. The lower handle cover can be removed to provide maintenance access without affecting the overall vehicle height or requiring removal of the upper handle cover.
3Device complexity
If the handle cover is formed as a single piece to simplify structure, then the device complexity is reduced, but the ease of maintenance deteriorates
Solution Approach 1:
The handle cover is divided into an upper handle cover and a lower handle cover that can be detached from each other. This segmentation enables easy maintenance of the lower handle cover without requiring removal of the upper handle cover, significantly improving serviceability while maintaining relatively simple overall structure.
Data Source
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AI summary
A motorcycle (1) comprising a head pipe portion (21), a steering shaft (3), a handle unit (12) including: a pair of right and left grip portions, a coupling portion, a handle cover portion (13) including: an upper handle cover, a lower handle cover, a wire portion covered with the handle cover portion, an upper front cover, a head light portion disposed in the upper front cover, and a lower front cover, wherein a vertical length of the lower front cover is greater than a vertical length of the upper front cover, the lower handle cover includes: a lower handle cover middle portion, and lower handle cover lateral portions, wherein the lower handle cover middle portion includes an opening in a front portion thereof, or a vertical length of the front portion of the lower handle cover middle portion is less than a vertical length of a transversely middle portion of the upper handle cover.