Motorless Windshield Adjustment Mechanism for Motorcycles
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Solution Overview
Problem
Existing windshield devices for saddle-ride vehicles are bulky due to long motors and shafts, which affect aerodynamic performance and increase dimensions.
Innovation Solution
A windshield device with a rail member and lever system that allows adjustable height and angle settings using a lock pin and elastic member, eliminating the need for a long shaft and simplifying configuration, while hiding holes for improved appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a motor and long shaft are used to enable the windscreen to be movable and adjustable, then the windscreen can be adjusted in height and angle, but the device dimensions increase and aerodynamic performance deteriorates
Solution Approach 1:
The patent removes the motor and long shaft from the system, extracting the problematic components that caused increased dimensions. Instead, it uses a simplified mechanical linkage system with guide connecting bars and a lever member that achieves the same windscreen adjustment function without the bulky motor-shaft assembly
Solution Approach 2:
The adjustment mechanism is segmented into multiple guide connecting bars (four in total including upper, lower, right and left) that work together through pivotal movement. This segmentation allows the system to achieve complex motion control through simpler, smaller individual components rather than requiring a single large motor and shaft
2Ease of operation
If a motor and long shaft are used to enable the windscreen to be movable, then the windscreen can be adjusted, but the shaft affects aerodynamic performance
Solution Approach 1:
The patent extracts and removes the long shaft that caused aerodynamic interference. The replacement mechanism uses compact guide connecting bars that pivot in place, eliminating the protruding shaft structure that would disrupt airflow over the vehicle
Solution Approach 2:
The system uses dynamic pivotal movement of the guide connecting bars and lever member to achieve windscreen adjustment. This dynamic mechanism allows the components to move through controlled arcs rather than requiring a static long shaft, reducing aerodynamic impact while maintaining full adjustability
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 adjustable height and angle adjustments in a compact design, enhancing operability and aerodynamics by eliminating the need for a long shaft and improving the device's appearance.
Implementation Method 1
the lever member is urged by an elastic member (44) in a direction to engage the holes (68) with the lock pin (46)
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 windshield portion provided adjustably in height, the windshield portion is attached through a rail member 41, the rail member 41 is equipped with an upper elongate hole 48b, a lever member 42 covering the upper elongate hole 48b and a lock pin 46 fixed to a body side are equipped, the rail member 41 is provided slidably relative to the lock pin 46 inserted through the upper elongate hole 48b, and the lever member 42 is equipped with a plurality of holes 68 with which the lock pin 46 is engageable.