Motorcycle Windshield Height Adjustment Mechanism
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Solution Overview
Problem
Conventional windshield devices for saddle-ride type vehicles have complex configurations and high manufacturing costs due to numerous parts, making them inefficient and costly to produce.
Innovation Solution
A windshield device with a simplified configuration using a combination of a link structure with three axes and a slide structure with one axis, featuring a holding member, attachment member, connecting members, and an operation member to adjust the windshield's height, reducing the number of parts and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional windshield device uses multiple supporting members, rail brackets, coupling members, and lock mechanisms to adjust screen height, then the screen height is adjustable, but the configuration becomes complicated and manufacturing cost increases
Solution Approach 1:
The patent combines multiple supporting members into a single integrated support structure. The support structure includes a support arm and a support link that work together as one unit, eliminating the need for separate left and right supporting members, rail brackets, and coupling members. This merging reduces the number of parts while maintaining the height adjustment function.
Solution Approach 2:
The support structure serves multiple functions: it supports the windshield member, enables height adjustment through the operation member, and provides locking capability through the lock mechanism integrated into the same structure. The support arm and support link together perform both the structural support and the adjustment functions that previously required separate components.
2Adaptability or versatility
If a conventional windshield device uses multiple parts including operation levers, rail brackets with guide holes, and coupling members, then the screen height can be adjusted, but the number of parts increases and manufacturing cost rises
Solution Approach 1:
The patent merges the functions of operation levers, rail brackets, coupling members, and supporting members into a single integrated support structure. The support arm contains the adjustment mechanism, and the support link connects it to the windshield holder, eliminating the need for separate operation levers and rail brackets with guide holes.
Solution Approach 2:
The patent extracts and eliminates unnecessary intermediate components from the conventional design. By removing the coupling members and rail brackets, the design directly connects the support arm to the windshield holder through the support link, reducing the total number of parts while maintaining adjustability.
3Reliability
If a conventional windshield device uses multiple supporting members, coupling members, and lock mechanisms, then the screen height can be maintained, but the manufacturing cost increases
Solution Approach 1:
The patent combines the locking function with the support structure itself. The lock mechanism is integrated into the support arm and support link assembly, eliminating the need for separate locking components. This integration reduces manufacturing cost while maintaining the ability to reliably hold the windshield at adjusted heights.
4Ease of manufacture
If a windshield device uses a simplified configuration with a link structure and slide structure, then manufacturing cost decreases, but the mechanism for height adjustment must be simpler
Solution Approach 1:
The support structure is segmented into distinct functional components: the support arm for mounting, the support link for connection, and the operation member for adjustment. This segmentation allows each component to be manufactured separately with simple geometry, reducing manufacturing complexity and cost while maintaining the overall adjustment mechanism's functionality.
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 smooth height adjustment of the windshield with improved operability and reduced manufacturing costs through a simplified design, allowing for easy operation and reliable locking mechanisms.
Implementation Method 1
a guide protrusion of each supporting member slides in the guide hole of each rail bracket
Implementation Method 2
The supporting members and the coupling member are rotatably connected
Data Source
AI summary
To simplify the configuration, decrease the number of parts, and reduce the manufacturing cost, a windshield device for a saddle-ride type vehicle includes: a screen 5 whose height is adjustable; a holder 11 holding the screen; a bracket 12 fixed to a vehicle body side member 7 and having a guide hole 71; an arm 13 arranged between the holder and the bracket; a first shaft 51 rotatably coupling the holder and the bracket and configured to move along the guide hole; a second shaft 52 arranged parallel to the first shaft and coupling the holder and one end of the arm; a third shaft 53 arranged parallel to the first shaft and coupling the bracket and another end of the arm; and an operation member 15 provided at an end portion of the first shaft.