Card Reader Guide Structure for Foreign Object Clogging Prevention
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Solution Overview
Problem
Existing card readers are prone to clogging when large foreign objects are inserted, leading to disruptions in card transactions.
Innovation Solution
A card reader design with a recessed accommodation part and guide mechanism that directs foreign objects away from the data reading mechanism, allowing for continued card transactions even with large foreign objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a card accommodating part is formed with opening parts and recessed parts to allow dust and dirt discharge, then dust and dirt can be discharged to the outside, but a relatively large foreign matter such as a coin can clog the card accommodating part
Solution Approach 1:
The card accommodating part is divided into multiple functional zones: a front reception area for cards, a rear discharge area for foreign matter, and a guide structure. This segmentation allows cards to be received while foreign matter is directed to a separate discharge path, preventing clogging and maintaining transaction continuity.
Solution Approach 2:
A guide structure acts as an intermediary element between the card insertion slot and the card accommodating part. This guide directs foreign matter away from the card reading mechanism and toward a discharge opening, preventing foreign matter from blocking the card passage while allowing cards to pass through normally.
2Ease of operation
If the card accommodating part is designed to accept cards smoothly, then card insertion is convenient, but large foreign matter can be inserted and cause clogging
Solution Approach 1:
Different regions of the card accommodating part have different structural characteristics. The front reception area has smooth surfaces for convenient card insertion, while the rear area includes guide structures and discharge openings specifically designed to handle foreign matter. This local differentiation allows the structure to serve dual purposes: convenient card insertion and foreign matter prevention.
Solution Approach 2:
The guide structure is positioned in advance to intercept foreign matter before it can reach the card reading mechanism. By providing a pre-directed path for foreign matter through guide surfaces and discharge openings, the system prevents clogging before it occurs, maintaining smooth card insertion operations.
3Adaptability or versatility
If the card reading mechanism is exposed for data reading, then data communication is enabled, but foreign matter can interfere with the reading process
Solution Approach 1:
The guide structure serves as a protective intermediary that directs foreign matter away from the card reading mechanism. By creating a physical barrier and directed path, the guide prevents foreign matter from reaching and interfering with the data reading process, while still allowing the mechanism to access cards for reading operations.
Solution Approach 2:
The card accommodating part is segmented into a card reception zone and a data reading zone. The guide structure creates a clear separation between these zones, allowing cards to be received and held while foreign matter is directed to a discharge area. This segmentation protects the data reading mechanism from foreign matter interference while maintaining full reading capability.
Data Source
AI summary
A card reader includes a data reading mechanism and a main body frame formed with a card moving passage and holding the data reading mechanism. The main body frame is formed with a moving passage forming surface, an accommodation part recessed from the moving passage forming surface toward a lower side, and a guide part for guiding a foreign matter inserted from a card insertion slot to the accommodation part. The accommodation part is disposed at a position displaced from the data reading mechanism in a width direction of a card and is disposed on a lower side in a vertical direction with respect to the card contacting the moving passage forming surface. The foreign matter is capable of being guided from the front side with respect to the data reading mechanism toward the accommodation part by the guide part.