Movable Windshield Device for Saddle-Ride Vehicles
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Solution Overview
Problem
Saddle-ride type vehicles face space restrictions, requiring a windshield device that is both movable and downsized.
Innovation Solution
A windshield device with a windshield portion adjustable in height and slant, mounted through a link member extending from a shaft, where the link member can be switched between movable and fixed states by engaging or disengaging a gear on the shaft, allowing for compact configuration and easy adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the windshield device is made movable with multiple link members, then the adjustability and functionality are improved, but the device size and complexity increase
Solution Approach 1:
The link members are designed to be switchable between movable and fixed states through gear engagement. The first link member can be fixed at multiple positions along the shaft, allowing the windshield to be adjusted to different angles and heights while maintaining structural stability when fixed, thus achieving both adaptability and compactness
Solution Approach 2:
The windshield support structure is divided into multiple link members (first link member and second link member) that can independently be fixed or moved. This segmentation allows each segment to be positioned optimally, reducing the overall device size while maintaining full adjustability functionality
2Ease of operation
If the gear is positioned centrally on the shaft, then the structure is simplified, but the operability from lateral side becomes difficult
Solution Approach 1:
The shaft is designed with asymmetric features: a pressed portion protruding from one end and a gear positioned eccentrically from the shaft center. This asymmetric configuration allows the gear to be easily engaged or disengaged by pressing the pressed portion from the lateral side, significantly improving operability while the overall shaft structure remains relatively simple
3Reliability
If the gear engagement force is increased to ensure secure fixing, then the reliability is improved, but the ease of engagement and disengagement deteriorates
Solution Approach 1:
A pressed portion acts as an intermediary mechanism between the operator's hand and the gear. By pressing this intermediate element, the gear is engaged or disengaged from the link member, providing sufficient engagement force for reliable fixing while keeping the operation easy through mechanical advantage and force amplification
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables a movable and downsized windshield device with enhanced operability, smooth gear engagement, and easy adjustment, addressing space constraints while maintaining functionality.
Implementation Method 1
a gear (130, 230L, 230R, 450) provided on the shaft (88, 188, 388) and fixing the link member (82, 382), wherein the link member (82, 382) is switched between a movable state and a fixed state upon taking in and out the gear (130, 230L, 230R, 450) in the vehicle width direction
Data Source
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AI summary
[Problem] In a windshield device for a saddle-ride type vehicle, the windshield device is designed to be of a movable type and to be downsized. [Solution] In a windshield device for a saddle-ride type vehicle equipped with a windscreen 80 which is provided to be adjustable in height and slant about an upper shaft 88 arranged to be directed in a vehicle width direction, the windscreen 80 is mounted through a link member 82 extending from the upper shaft 88, and the link member 82 is switched between a movable state and a fixed state upon taking in and out a gear 130 in the vehicle width direction, the gear 130 being provided on the upper shaft 88 and fixing the link member 82.