Motorcycle Leg Shield Locking Mechanism
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Solution Overview
Problem
Conventional motorcycle steering handle lock devices are difficult to operate due to their location, which minimizes operational performance as the lock is not easily visible or accessible to the rider.
Innovation Solution
A motorcycle design featuring a locking mechanism with an operation member integrated into an inclining wall part of the leg shield, which rises from the rear to the front, making it visible and accessible, and includes a moveable button that projects differently based on the locking state, improving operational recognition and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the handle lock is provided in a vertical panel connected to the floor part, then the structure is compact and integrated, but the location is difficult to be seen by a rider sitting on a seat, minimizing operational performance
Solution Approach 1:
The operation member is relocated from a vertical panel (vertical dimension) to the leg shield (horizontal/diagonal dimension), changing the spatial dimension of placement. This dimensional shift allows the operation member to be positioned on the inclining wall part of the leg shield, making it visible and accessible to the rider while maintaining structural integration through the body cover assembly
2Ease of operation
If the operation member is placed in a location that is easily visible and accessible, then operational performance is improved, but the structural integration and compactness may be compromised
Solution Approach 1:
The operation member is merged with the leg shield structure, specifically integrated into the inclining wall part. This merging allows the operation member to be positioned in a visually accessible location while maintaining structural integration, as the leg shield is already part of the body cover assembly that integrates with the motorcycle frame
Solution Approach 2:
The leg shield serves multiple functions: it provides structural protection, defines the body cover assembly, and now houses the operation member for the handle lock. This multi-functionality allows the same structural component to achieve both structural integrity and operational accessibility
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A motorcycle (1) comprises a leg shield (27) which is located above a lid (33) and has an inclining wall part (27c) inclining at a smaller angle with a horizontal surface than the vicinity of the lid (33) so that a front part thereof rises or is located at a higher position than a rear part thereof. An operation member (42) is provided in the inclining wall part (27c), wherein the operation member selectively locks and unlocks a steering handle (5).