Motorcycle Windscreen Mount With Movable Nut Retainer
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Solution Overview
Problem
Existing height-variable windscreen structures for straddle-type vehicles face issues such as nut loss, rust, increased component count, and complexity, leading to deteriorated workability and appearance.
Innovation Solution
A windscreen device with a pair of left and right mounting mechanisms featuring a mounting member, male and female fixing members, and a holding member that allows the female fixing member to be movable between different height positions, preventing nut loss and rust while reducing component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If nuts are completely separated from the windscreen mounting portion, then the windscreen can be removed and reinstalled, but the nuts may be lost and the workability deteriorates
Solution Approach 1:
The patent introduces a holder as an intermediary component that retains the nuts on the windscreen mounting portion. The holder is fixed to the mounting portion and provides storage spaces for receiving nuts, preventing them from being lost while allowing the windscreen to be removed and reinstalled. This mediator component resolves the contradiction by keeping nuts accessible but secured.
2Ease of operation
If nuts are fixed to all mounting holes in advance, then the windscreen can be easily mounted, but unused nuts cause rust and appearance deterioration
Solution Approach 1:
The patent applies local quality by providing different treatments to different areas of the mounting portion. The holder is fixed only to the portion of the mounting portion where nuts are actually used, while leaving other areas without fixed nuts. This selective fixation prevents rust on unused mounting holes while maintaining easy mounting capability where needed.
Solution Approach 2:
The holder acts as an intermediary that selectively retains nuts only at locations where they are needed for windscreen mounting. By providing storage spaces only in specific areas, the holder prevents rust on unused mounting holes while still enabling easy assembly at the required locations.
3Adaptability or versatility
If multiple sets of mounting holes are provided for height adjustment, then the windscreen height can be changed, but the number of components and complexity increases
Solution Approach 1:
The holder serves multiple functions: it fixes to the mounting portion, provides storage spaces for nuts, and enables height adjustment by allowing nuts to be positioned at different mounting holes. This multi-functional design achieves height adjustability without proportionally increasing component count, as the same holder structure supports multiple adjustment positions.
Data Source
AI summary
A windscreen device includes left and right mounting mechanisms. Each of the mounting mechanisms includes a mounting member including a mounting plate, a male fixing member, a female fixing member coupled to the male fixing member, and a holding member to hold the female fixing member on a rear surface side of the mounting plate. The mounting plate is provided with a first and second mounting holes having different height positions. The male fixing member is inserted into one of the insertion holes, then inserted into one of the first and second mounting holes, and then coupled to the female fixing member, so that the windscreen is fixed to the mounting member. The female fixing member is held on the mounting member by the holding member to be movable between a position facing the first mounting hole and a position facing the second mounting hole.