Straddled Vehicle Windscreen Rails for Stable Support and Rider Vision
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Solution Overview
Problem
Straddled vehicles face challenges in stably supporting a windscreen while maintaining a wide field of vision for the rider, as positioning the rails high obstructs the view and positioning them low requires a strong structure.
Innovation Solution
The vehicle design includes left and right rails positioned high to stably support the windscreen, with an overlapping configuration that minimizes the interval between the rails, allowing the windscreen to be moved up and down, and includes a motor to reduce the front portion size by avoiding placement between the rails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the rails are positioned relatively high, then the windscreen can be stably supported, but the field of vision for the rider may be partially blocked by the rails
Solution Approach 1:
The patent positions the rails in the vertical dimension (high location) to achieve stable windscreen support, while the gauge is positioned in the horizontal dimension (rearward location) to avoid blocking the rider's field of vision. This spatial separation in different dimensions resolves the contradiction between stability and visibility.
2Object-affected harmful factors
If the rails are positioned relatively low, then the field of vision for the rider is secured, but the windscreen requires a large dimension in the up-down direction and difficult stable support
Solution Approach 1:
The patent resolves this contradiction by placing the rails high in the vertical dimension for stable windscreen support, while positioning the gauge rearward in the horizontal dimension. This allows the rails to be high without the gauge blocking the rider's view, thus maintaining both stability and visibility.
3Area of stationary object
If the interval between the left rail and the right rail is large, then the structure can accommodate the gauge, but the front portion size of the vehicle increases
Solution Approach 1:
The patent merges the spatial occupation of the rails and gauge by positioning them to overlap when viewed from the front. The rails extend upward from a position that overlaps with the gauge's horizontal space, allowing both components to coexist within a compact front portion volume without requiring a large interval between the rails.
Data Source
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AI summary
A motorcycle (1) includes a left slider (34) slidably engaged with a left rail (32), a right slider (35) slidably engaged with a right rail (33), a windscreen (20) supported by the left slider (34) and the right slider (35), and a gauge (18) arranged rearward relative to the left rail (32) and the right rail (33). At least a portion of the left rail (32) and at least a portion of the right rail (33) overlap with a gauge (18) as the vehicle is seen from the front. An interval (G) in a vehicle width direction between the left rail (32) and the right rail (33) is smaller than a dimension (W1) in the vehicle width direction of the gauge (18). The windscreen (20) includes a left-of-meter portion (20L) that is located leftward relative to a left edge (18L) of the gauge (18), and a right-of-meter portion (20R) that is located rightward of a right edge (18R) of the gauge (18).