Board Wheel Assembly with Rotating Second Wheels for Direction Change
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Solution Overview
Problem
Conventional boards face limitations in performing direction changes and maintaining stable posture due to the restricted movement of wheels, which are not easily adaptable for free rotational movements and balance stability.
Innovation Solution
The board incorporates a deck with a pair of first wheel assemblies on either side and at least one second wheel assembly between them. The second wheel assembly includes a rotatable wheel mount, wheel supports, and wheel connectors, allowing for easy direction changes and improved balance stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional wheel assemblies are used with wheels fixed to the deck, then the board structure is simple, but direction changes are difficult and free rotational movement is not possible
Solution Approach 1:
The wheel assembly is divided into separate components: a wheel mount fixed to the deck, wheel supports that can rotate relative to the mount, and wheels that rotate relative to the supports. This segmentation allows each component to perform its specific function independently, enabling direction changes while maintaining structural simplicity.
Solution Approach 2:
The wheel supports are designed to rotate relative to the wheel mount, and the wheels rotate relative to the supports. This dynamic configuration allows the wheel assembly to adapt its orientation for direction changes while the overall structure remains simple and easy to manufacture.
2Stability of the object's composition
If a single wheel assembly is used, then the device complexity is low, but stable posture cannot be maintained when stopped
Solution Approach 1:
The wheel assembly is segmented into multiple functional parts (mount, supports, wheels) that can be independently positioned. This segmentation allows the supports to be spaced apart in the width direction, creating a stable base when stopped while keeping each individual component simple.
Solution Approach 2:
The wheel supports are arranged in the width direction (second direction) rather than only in the longitudinal direction. This dimensional arrangement creates a wider base of support when stopped, improving posture stability without significantly increasing overall device complexity.
3Adaptability or versatility
If wheels are mounted to move only in straight direction, then the manufacturing precision is high, but adaptability for various movements is limited
Solution Approach 1:
The wheel supports are designed to rotate relative to the wheel mount, allowing the wheel assembly to dynamically adjust its orientation. This dynamic capability provides adaptability for various movements including direction changes and rotational movements, while the manufacturing precision requirements remain manageable due to the modular nature of the rotating components.
Data Source
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AI summary
The present disclosure relates to a board easily capable of changing direction and a wheel assembly for a board. A board according to an embodiment of the present disclosure comprises: a deck formed to extend in a first direction; a pair of first wheel assemblies which are respectively formed on both sides of the deck in the first direction; and at least one second wheel assembly which is arranged between the pair of first wheel assemblies and installed on the deck. Here, the pair of first wheel assemblies each comprise a first wheel attachment portion which is fixed to the deck, and a pair of first wheels which are installed to be spaced apart from each other on the first wheel attachment portion in a second direction that is the width direction of the deck and perpendicular to the first direction. Also, at least one second wheel assembly comprises a second wheel attachment portion fixed to the deck, and a pair of second wheels which are attached on the second wheel attachment portion to be rotatable with respect to the second wheel attachment portion.