Motorcycle Windscreen Gap Cover for Air Intake
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Solution Overview
Problem
The existing design of motorcycles with a windscreen and front cowl overlapping to form an air intake port faces challenges in reducing weight and design flexibility due to the use of heavy, difficult-to-mold materials and visibility of the gap, leading to increased size and weight, and compromised external appearance.
Innovation Solution
A vehicle design featuring a windscreen spaced from the front cowl with a screen cover covering the lower end and gap, forming intake ports that extend obliquely to reduce wind resistance and allow the windscreen to be made shorter and lighter, while the screen cover can be opaque or semi-transparent to hide the gap and coupling parts, facilitating easier molding and improved aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the windscreen and front cowl are overlapped with a gap to form an air intake port, then traveling wind can be effectively introduced to the inner side of the windscreen, but the overlapping part requires a certain length which increases the size and weight of the vehicle body
Solution Approach 1:
The invention divides the windscreen structure into two separate components: the main windscreen body and the screen cover. The screen cover is a separate piece that covers the lower end of the windscreen and the gap area, allowing the main windscreen to be shorter and lighter while still achieving effective wind introduction through the gap between the windscreen and front cowl.
2Reliability
If the windscreen and front cowl are overlapped with a gap to form an air intake port, then traveling wind can be introduced to the inner side of the windscreen, but the gap and coupling parts become visible which lowers external appearance quality
Solution Approach 1:
The screen cover acts as an intermediary component that covers the visible gap and coupling parts between the windscreen and front cowl. This opaque or semi-transparent cover hides the structural gap from external view, improving appearance quality while the gap itself remains functional for wind introduction.
3Illumination intensity
If a transparent material is used for the windscreen, then visibility is maintained, but the front cowl and gap are visible in the overlapping part which restricts design freedom
Solution Approach 1:
The invention applies different transparency qualities to different parts of the structure. The main windscreen remains transparent for driver visibility, while the screen cover at the lower end is opaque or semi-transparent to hide the gap and coupling parts. This local differentiation allows design freedom in the covered areas without compromising visibility.
4Ease of manufacture
If the windscreen is made shorter to reduce weight and improve molding ease, then manufacturing is facilitated, but the air intake function may be compromised
Solution Approach 1:
By segmenting the windscreen structure and adding a separate screen cover, the main windscreen can be made shorter and easier to mold while the screen cover compensates for the reduced overlap length. The screen cover ensures the gap remains properly positioned and functional for air intake, maintaining reliability despite the shorter main windscreen.
Data Source
AI summary
A front surface of a front cowl and the windscreen are disposed so as to form a gap therebetween, and a screen cover is fixed over the front surface in an engaged state. An upper portion of the screen cover covers a lower portion of the windscreen so that the gap is invisible externally. In addition, an intake port substantially in the shape of a slit elongated in the front-rear direction is provided between each side part of the screen cover and the front surface, in an obliquely rising outwardly opening shape. Traveling wind is laterally taken in through the intake ports, to be led through the gap to the inner side of the windscreen.