Expandable Vehicle Frame for Compact Parking and Stability
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Solution Overview
Problem
Existing vehicle designs do not effectively address the need for a compact parking solution while restricting front wheel movement, which is essential for stability and anti-theft purposes when the vehicle is not in use.
Innovation Solution
A vehicle with an expandable and contractible frame part that allows movement of the front wheels when in use and restricts their movement when parked, utilizing a link mechanism and sliding frame parts to change the vehicle's length and stability configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the frame part is made expandable and contractible, then the vehicle can be compactly parked and portability is improved, but the complexity of the frame mechanism increases
Solution Approach 1:
The frame part is divided into multiple segments (first frame part and second frame part) that can slide relative to each other. This segmentation allows the frame to be contracted for compact parking while maintaining structural integrity during use, resolving the contradiction between compactness and mechanism complexity.
Solution Approach 2:
The frame part transitions from a static structure to a dynamic one that can change its length. The sliding connection between frame segments enables the frame to adapt its size based on whether the vehicle is in use or parked, achieving compact storage without permanent structural modification.
2Reliability
If the front wheel movement is restricted when parked, then stability and anti-theft are improved, but the ease of operation for parking and moving is reduced
Solution Approach 1:
The frame contraction action is performed in advance before parking. By contracting the frame part beforehand, the vehicle achieves a compact configuration that naturally restricts front wheel movement, providing stability and anti-theft protection without requiring additional active locking mechanisms during parking.
Solution Approach 2:
The system uses dynamic frame configuration to switch between operational and parked states. When contracted, the frame structure itself becomes the restricting mechanism for front wheel movement, providing stability through structural configuration rather than separate active constraints.
3Volume of moving object
If the frame part is contracted for parking, then the vehicle occupies less space and portability is improved, but the strength and rigidity of the frame structure is reduced
Solution Approach 1:
The frame is segmented into multiple parts connected by sliding connections. This segmentation allows the frame to be contracted for compact parking while the individual segments maintain their structural strength. The connection points are designed to preserve load-bearing capacity even in the contracted configuration.
Solution Approach 2:
Different parts of the frame have different properties optimized for their specific functions. The sliding connection areas are designed to maintain structural integrity during contraction, while other parts provide the necessary flexibility. This local differentiation allows the frame to be compact when parked without compromising overall strength.
Data Source
AI summary
Provided is a vehicle including a handle part that includes a handle, what is connected to be steerable by the handle, a rear wheel connected to a pedal, and a frame part that connects what is described above and the rear wheel, in which the frame part is expandable and contractible between a first position in which a movement of what is described above is permitted, and a second position in which a movement of what is described above is restricted.