Motorcycle Case with Traction Cable Extension
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Solution Overview
Problem
Conventional motorbike cases have a fixed interior volume, which cannot be adjusted by the user, and existing extendable designs often require complex mechanisms increasing manufacturing costs.
Innovation Solution
A case design featuring movable casing parts connected by traction cables that allow parallel displacement without additional mechanisms, enabling easy adjustment of volume by the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed volume case is used, then the manufacturing cost is reduced and the structure is simplified, but the adaptability to different user needs is worsened
Solution Approach 1:
The case is divided into two separate casing parts that can move relative to each other. The first casing part can be extended or retracted along the longitudinal axis relative to the second casing part, allowing volume adjustment without complex mechanisms. This segmentation enables independent movement of each part to achieve variable volume.
2Adaptability or versatility
If telescopic or flexible portions are added to extend volume, then the adaptability is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The case transitions from a static fixed-volume structure to a dynamic variable-volume structure. The first casing part can dynamically adjust its position relative to the second casing part along the longitudinal axis, enabling the case to adapt its volume based on user needs while maintaining structural integrity.
3Adaptability or versatility
If a movable casing part is added for volume adjustment, then the adaptability is improved, but the ease of operation is worsened due to complex mechanisms
Solution Approach 1:
The case enables self-service volume adjustment by allowing the user to directly move the first casing part along the longitudinal axis. The simple linear movement mechanism requires no complex intermediaries, making the operation intuitive and easy to perform without specialized knowledge or effort.
Data Source
Figure 1~2
Figure 3
Figure 4~6
AI summary
The case for vehicles comprises a first casing part (1); and a second casing part (2), the first casing part (1) being movable relative to the second casing part (2) between an extended and a reduced position; wherein the case also comprises traction cables (4, 5), which, when the first casing part (1) is moved, cause a straight line translation of the first casing part (1) relative to the second casing part (2). It allows that when a user moves the first casing part relative to the second casing part, the traction cables allow the entire first casing part to move in a straight line.