Motorcycle Battery Compartment Cover Hinge for Seat-Free Access
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Solution Overview
Problem
Straddle-type vehicles, such as motorcycles, face low workability in accommodating and removing accommodation objects like battery packs due to the need to remove the seat for access, which complicates the operation.
Innovation Solution
A straddle-type vehicle design featuring an accommodation space with a hinge shaft above and in front of the seat, allowing the outer cover to pivot open upward, facilitating the easy installation and removal of accommodation objects without requiring seat removal, and incorporating a pressing mechanism to secure the inner cover for efficient battery pack management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the seat is disposed directly above the accommodation space, then the vehicle structure is compact, but the pivot range of the cover body is restricted and workability deteriorates
Solution Approach 1:
The hinge shaft is repositioned from a vertical orientation (directly above the accommodation space) to a horizontal orientation (above and in front of the seat front end portion). This dimensional change allows the cover body to pivot in a different plane, expanding the available pivot range while maintaining vehicle compactness. The cover body can now open upward without being constrained by the seat structure below.
2Shape
If the hinge shaft is disposed directly above the accommodation space, then the cover body can be compact, but the pivot range is restricted by the seat
Solution Approach 1:
The hinge shaft is positioned asymmetrically relative to the accommodation space, specifically above and in front of the seat front end portion rather than centered directly above. This asymmetric positioning creates an offset pivot point that expands the arc of motion available to the cover body, allowing it to open upward with sufficient clearance while maintaining a compact closed position.
3Reliability
If the seat must be removed to access the accommodation space, then security is improved, but operation complexity increases
Solution Approach 1:
The access mechanism is segmented into two independent parts: the seat (for rider function and primary security) and the cover body (for direct access to accommodation space). The cover body can be opened independently of the seat, providing a direct path to the accommodation space without requiring seat removal. This segmentation maintains security through the cover body while simplifying operations for routine access.
Data Source
AI summary
There is provided a straddle-type vehicle including: an accommodation space configured to accommodate an accommodation object; a seat disposed behind the accommodation space in a front-rear direction and on which a rider straddles; a hinge shaft disposed above and in front of a front end portion of the seat and extending in a left-right direction; and a cover body pivotable about the hinge shaft between an open position where the accommodation space is opened upward and a closed position where the accommodation space is covered from above.