Hoverboard Shaft Rotation Mechanism for Weight Reduction
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Solution Overview
Problem
Existing hoverboards are heavy and inconvenient to move due to the use of large and heavy aluminum plates for direction adjustment, which also increases manufacturing costs.
Innovation Solution
A hoverboard design featuring a left supporting shaft and a right supporting shaft that are relatively rotatably connected, allowing for direction adjustment without the need for heavy aluminum plates, thereby reducing weight and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If heavy aluminum plates are used for direction adjustment, then the structural strength is improved, but the overall weight increases and convenience of movement deteriorates
Solution Approach 1:
The patent divides the original heavy aluminum plate structure into separate functional components: a first supporting shaft for the first wheel, a second supporting shaft for the second wheel, and a connecting component that links them. This segmentation allows each part to be optimized independently, replacing the monolithic heavy plate with lighter, functionally-equivalent elements while maintaining structural integrity.
Solution Approach 2:
The patent extracts and removes the excessive material from the original aluminum plate design, keeping only the essential load-bearing and directional functions. By taking out the non-essential mass and retaining only the critical structural elements (supporting shafts and connecting components), the design achieves weight reduction while preserving necessary strength.
2Stability of the object's composition
If heavy aluminum plates are used for direction adjustment, then the structural stability is improved, but the ease of operation deteriorates
Solution Approach 1:
By segmenting the structure into separate supporting shafts and a connecting component, the patent creates a more flexible system that can be easily manipulated. Each shaft can rotate independently to adjust direction, and the connecting component provides stable linkage without the excessive weight that would hinder operational ease.
Solution Approach 2:
The patent changes the physical parameters of the structural components by replacing dense aluminum plate material with lighter shaft and connecting element designs. This parameter change in material density and structural configuration maintains stability while significantly improving ease of operation and portability.
3Ease of manufacture
If traditional aluminum plate structure is used, then the manufacturing process is established, but the manufacturing cost increases
Solution Approach 1:
The patent segments the monolithic aluminum plate into separate shaft components and a connecting element, which can be manufactured using standard machining processes. This segmentation allows for more efficient material utilization, reduced material waste, and lower overall material costs while maintaining manufacturability through conventional methods.
Solution Approach 2:
The patent employs composite construction by combining multiple discrete components (supporting shafts, connecting component) to replace the single aluminum plate. This composite approach optimizes material selection for each component, potentially using different materials or finishes suited to specific functional requirements, thereby reducing overall material cost while maintaining ease of manufacture.
Data Source
AI summary
A hoverboard comprises a left supporting shaft, a right supporting shaft and wheels, wherein an outer end of the left supporting shaft and an outer end of the right supporting shaft are both connected to the wheels; an inner end of the left supporting shaft and an inner end of the right supporting shaft are relatively rotatably connected to each other; the inner end of the right supporting shaft is provided with a small outer-diameter portion which is adaptively inserted in the inner end of the left supporting shaft; a side wall of the inner end of the left supporting shaft is provided with an arc-shaped through hole; a lower end of a limiting bolt penetrates through the arc-shaped through hole to be fixedly connected to the small outer-diameter portion, and an upper end of the limiting bolt is at least higher than a lower edge of the arc-shaped through hole; and two inner side walls of the arc-shaped through hole in a lengthwise direction thereof define extreme positions of the relative rotation of the left supporting shaft and the right supporting shaft respectively. The hoverboard having a structure, capable of being assembled more conveniently, that the left supporting shaft and the right supporting shaft are relatively rotatably connected to each other is provided, and compared with similar products on the current market, the hoverboard has more space to reduce its own weight.