Rotary Lottery Disk Surface Layout for Longer Ball Rolling
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Solution Overview
Problem
Conventional lottery devices fail to account for centrifugal forces that prevent lottery media from rolling on a rotating board, leading to reduced rolling time and diminished player engagement.
Innovation Solution
A lottery device with a rotary disk featuring distinct first and second surfaces of different configurations to apply varying forces on the lottery medium, enhancing rolling time and player engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the rotary disk rotates at high speed, then the lottery medium can be ejected faster, but the centrifugal force presses the medium against the peripheral edge preventing it from rolling
Solution Approach 1:
The rotary disk is divided into multiple regions with different surface properties: a first surface with high friction coefficient and concave/convex patterns for strong interaction, and a second surface with low friction coefficient for smooth interaction. This local differentiation allows the disk to simultaneously provide strong initial interaction and subsequent smooth rolling, resolving the contradiction between fast rotation and sufficient rolling time.
Solution Approach 2:
The patent introduces a movable partition wall that can rotate relative to the rotary disk, dynamically changing the boundary between the first and second surfaces. This dynamic configuration allows optimization of the transition zone between high-friction and low-friction regions, enabling better control over the lottery medium's movement throughout the rotation process.
2Ease of operation
If the lottery medium adheres to the board surface, then it can be controlled better, but the rolling time is shortened affecting player engagement
Solution Approach 1:
Different regions of the rotary disk are designed with different friction characteristics. The first surface provides high friction for initial control and ejection, while the second surface provides low friction for sustained rolling. This spatial differentiation of surface properties allows the system to achieve both good control and extended rolling time without compromise.
Solution Approach 2:
The first surface incorporates concave and convex patterns that create variable contact points between the lottery medium and the disk surface. These surface curvature variations enhance the interaction during the ejection phase while the transition to the smoother second surface ensures continued rolling motion, addressing both control and rolling duration requirements.
3Device complexity
If a single uniform surface is used on the rotary disk, then the structure is simple, but the lottery medium movement is predictable and rolling time is limited
Solution Approach 1:
The rotary disk surface is segmented into multiple regions with distinct characteristics: a first surface with high friction and textured patterns for active ejection, and a second surface with low friction for smooth rolling. This local quality differentiation extends rolling time while maintaining reasonable structural complexity through modular design.
Solution Approach 2:
The disk surface is divided into functionally distinct segments separated by a partition wall. This segmentation allows each region to be optimized for its specific function (ejection vs. rolling) while the modular structure keeps the overall complexity manageable. The partition wall itself can be stationary or movable, providing flexibility in implementation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device extends the rolling time of lottery media on the rotary disk, thereby increasing player expectation and amusement through a simple configuration.
Implementation Method 1
the first surface applies a first force to the lottery medium during the rolling, the first force being different from a second force that the second surface applies to the lottery medium during the rolling
Implementation Method 2
the centrifugal force exerted on the lottery media by the rotation of the board presses the lottery media against the peripheral edge of the board
Implementation Method 3
the first surface may have an inverted truncated cone shape. By adopting such a configuration, the lottery medium can roll inward toward the first surface under its own weight
Data Source
AI summary
A lottery device includes: a lottery medium that includes a lottery surface on which a lottery content is displayed; a rotary disk on which the lottery medium is placed; and a rotary driver that rotates the rotary disk such that the lottery medium rolls on the rotary disk. The rotary disk has first and second surfaces where the lottery medium stops after rolling at time when the rotary disk stops rotating. When viewed from above, the first surface has an annular shape, and the second surface is disposed on an inner side of the annular shape. The first and second surfaces have different configurations such that the first surface applies a first force to the lottery medium during the rolling, the first force being different from a second force that the second surface applies to the lottery medium during the rolling.