Coin Dispensing Apparatus Guide Member and Stopper
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Solution Overview
Problem
Existing coin dispensing apparatuses face issues with excessive payout due to abrupt stopping of the rotary disk, leading to durability concerns and inability to selectively eject coins, which results in potential errors and wear and tear.
Innovation Solution
A coin dispensing apparatus with a guide member and stopper system that can be interlocked and controlled to prevent excessive payout by moving between guiding and non-guiding positions, allowing for selective coin ejection without abruptly stopping the rotary disk, using a mechanical or electric interlocking device to manage the guide member and stopper positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rotation of the rotary disk is stopped abruptly after a predetermined number of coins are dispensed, then excessive payout is prevented, but the durability of the coin dispensing apparatus degrades due to large inertial forces
Solution Approach 1:
The guide member is made movable between a guiding position and a non-guiding position, allowing the system to dynamically adjust its configuration. During dispensing operations, the guide member is in the guiding position to enable coin ejection. When dispensing is complete, it moves to the non-guiding position to block coins without requiring abrupt disk stopping, thereby reducing inertial forces and improving durability while maintaining reliability.
2Productivity
If the rotation speed of the rotary disk is increased to increase the speed of dispensing changes, then productivity is improved, but the inertial forces during abrupt stopping become even larger, worsening durability
Solution Approach 1:
The function of controlling coin ejection is extracted from the rotary disk's rotation control and assigned to a separate movable guide member. This allows the rotary disk to maintain high rotation speeds for productivity without being constrained by the need for abrupt stopping, while the guide member independently manages coin flow by transitioning between guiding and non-guiding positions.
3Ease of operation
If all coins moved in conjunction with the rotation of the rotary disk are ejected using a guide pin, then the dispensing process is simplified, but selective ejection of coins is unable, leading to potential excessive payout
Solution Approach 1:
The guide member's ability to move between positions provides dynamic control over coin ejection. In the guiding position, it enables simplified ejection of coins moved by disk rotation. In the non-guiding position, it selectively blocks coins from being ejected, providing the necessary selectivity to prevent excessive payout while maintaining operational simplicity when dispensing is required.
Data Source
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AI summary
A coin dispensing apparatus prevents excessive dispensing of coins without abruptly stopping a rotary disk. A movable guide member is provided in a carrying path of coins to be selectively located at a guiding position where the coins are guided toward a dispensing opening or a non-guiding position where the coins are not guided toward the dispensing opening. A movable stopper is provided in a dispensing passage communicating with the carrying path to be selectively located at a blocking position where the coins are blocked or a non-blocking position where the coins are not blocked to pass through the dispensing passage. During a dispensing operation, the guide member is located at the guiding position and the stopper is located at the non-blocking position. During a non-dispensing operation, the guide member is located at the non-guiding position and the stopper is located at the blocking position.