Straddled Vehicle Windscreen Height Adjustment Mechanism
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Solution Overview
Problem
Existing straddled vehicle windscreen height adjustment systems are either limited to two positions, require complex operations, or increase vehicle cost with the use of actuators, failing to provide a simple and cost-effective method for adjusting windscreen height to suit different riders and usage scenarios.
Innovation Solution
A straddled vehicle with a screen support mechanism featuring a first and second element with recess-convex groups and a holding element that changes states to allow for adjustable windscreen height without detaching or reattaching the windscreen, using a bolt and nut system with a guide portion to limit movement and prevent swinging, allowing for fine adjustment without an actuator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the height of the windscreen is changed using an actuator, then the windscreen height can be adjusted to any height, but the configurations of surroundings of the windscreen become complicated and the cost increases
Solution Approach 1:
The adjustment mechanism is segmented into discrete height levels using multiple attachment holes at different positions on the windscreen and corresponding mounting brackets. This allows continuous height adjustment capability without requiring a complex continuous actuation system, resolving the contradiction between adjustment range and system complexity
Solution Approach 2:
The patent uses simple mechanical attachment components (bolts, nuts, attachment holes) instead of expensive actuators. These simple components achieve the height adjustment function at low cost and with minimal complexity, directly addressing the contradiction between adjustment capability and system complexity/cost
2Adaptability or versatility
If multiple attachment holes are provided for height adjustment, then the windscreen height can be adjusted to multiple levels, but the operation for changing the height becomes complicated
Solution Approach 1:
The windscreen is pre-equipped with multiple attachment holes at different heights, and the mounting bracket has corresponding pre-positioned holes. This preliminary preparation of attachment points allows the user to simply move the windscreen to the desired height and secure it, eliminating complicated adjustment procedures while providing multiple height levels
Solution Approach 2:
The design allows the user to independently adjust the windscreen height by aligning attachment holes and securing with fasteners, without requiring complex mechanisms or assistance. The pre-positioned holes guide the user through a simple self-service adjustment process that provides multiple height levels
Data Source
Figure 1
Figure 2(a)~2(b)
Figure 3(a)~3(b)
AI summary
A screen stay fixed to a windscreen is attached to a headlamp stay by an adjustment bolt and an adjustment nut. A recess-convex group alternately includes a plurality of recess portions and a plurality of convex portions that are formed at the head lamp stay, directed rearward and upward and arranged in an inclined direction. A fitting portion that can be fitted with the recess-convex group is formed at the screen stay. With the adjustment nut temporarily fixed to the adjustment bolt, the screen stay is movable in the inclined direction with respect to the headlamp stay. With the fitting portion fitted at any position of the recess-convex group, the adjustment nut is fastened to the adjustment bolt. Thus, the screen stay is fixed to the headlamp stay.