Motorcycle Storage Box Vertical Engagement
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Solution Overview
Problem
Existing motorcycle storage solutions expand vehicle width to increase storage space, compromising aesthetics and functionality.
Innovation Solution
A storage box design featuring paired rear frames with a first storage portion between them and a second storage portion bulging outward, formed from vertically engaged resin-molded members, including a hanging portion and a seat locking cable guide, to maximize storage capacity without expanding the vehicle width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the vehicle width is expanded to ensure larger storage space, then the storage capacity is improved, but the vehicle width increases which compromises aesthetics and functionality
Solution Approach 1:
The storage box utilizes the vertical dimension by extending downward from the seat assembly area. The first storage portion is positioned between the rear frames, while the second storage portion extends downward and outward, effectively using the height and depth dimensions rather than expanding the vehicle width horizontally.
Solution Approach 2:
The storage box is nested within the existing vehicle structure, specifically integrated with the rear frames and seat assembly. The first storage portion fits between the rear frames, and the second storage portion extends downward, nesting the storage functionality within the existing structural envelope without requiring additional lateral space.
2Ease of manufacture
If a single molded piece is used for the storage box, then the manufacturing process is simplified, but the structural complexity and loading capability are limited
Solution Approach 1:
The storage box is divided into two separate resin-molded members: the first member forming the first storage portion and upper part of the second storage portion, and the second member forming the lower part of the second storage portion. This segmentation allows each component to be optimized for its specific structural requirements while maintaining ease of manufacturing through standard molding processes.
Solution Approach 2:
The storage box employs a composite structure combining two resin-molded members vertically engaged with each other. This composite construction enhances the overall loading capability and structural strength compared to a single molded piece, while each individual member can be manufactured using conventional molding techniques.
Data Source
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AI summary
An objective of the present invention is to provide a motorcycle including a storage box that can enlarge storage space while suppressing expansion in the vehicle width. In a motorcycle including a storage box (142) supported by rear frames (23L, 23R) and storing articles, the storage box (142) includes a first storage portion (151), and a second storage portion (152) bulging toward the outside of the rear frame (23L) in the vehicle width direction from the first storage portion (151), and communicating into the first storage portion (151), the first storage portion (151) and an upper face (155) of the second storage portion (152) are formed of a first member (161), a side face (153) and a bottom face (154) of the second storage portion (152) are formed of a second member (162), and the first member (161) and the second member (162) are vertically engaged with each other in the height direction.