Reader Writer IC Card Insertion Angle
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Solution Overview
Problem
Conventional reader/writers for IC cards often require users to insert or place the cards at angles that can lead to unnatural hand and wrist postures, potentially causing discomfort and inefficiency, especially when combined with fingerprint authentication.
Innovation Solution
The reader/writer incorporates a support member with an inclined surface that sets the insertion or placement angle of the IC card at a predetermined acute angle, allowing for natural motion and posture of the user's hand and wrist, reducing interference between the user's fingers and the installation surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the reader/writer is designed with a horizontal insertion surface, then the device structure is simple and easy to manufacture, but the user's hand and wrist posture becomes unnatural causing discomfort
Solution Approach 1:
The patent applies dimensionality change by introducing an inclined surface that angles the insertion portion relative to the horizontal installation surface. This creates a three-dimensional configuration where the insertion surface is tilted at a predetermined acute angle, allowing users to insert IC cards in a more natural hand posture while maintaining structural feasibility through the support member's geometric design.
2Ease of operation
If the insertion surface is inclined at an acute angle, then natural hand posture is achieved, but the insertion portion becomes harder to support stably on the installation surface
Solution Approach 1:
The patent employs curved surface design through the inclined surface of the support member. The inclined surface is configured with appropriate curvature and angle to guide the IC card insertion while maintaining stability. The curved geometry distributes forces effectively and provides a stable insertion path that prevents the insertion portion from becoming unstable despite the acute angle inclination.
3Ease of operation
If the insertion portion is positioned horizontally, then fingers do not interfere with the installation surface, but the user must adopt an unnatural wrist posture
Solution Approach 1:
The patent resolves the finger interference issue by changing the dimensional orientation of the insertion portion. Instead of keeping it horizontal parallel to the installation surface, the insertion portion is tilted at an acute angle relative to the horizontal plane. This angular reorientation in three-dimensional space creates sufficient vertical clearance for fingers during IC card insertion, eliminating interference with the installation surface while promoting natural wrist posture.
Data Source
AI summary
According to one embodiment, a reader/writer includes an insertion portion and a support member. An information storage medium held by a person with fingers is inserted into the insertion portion. The support member supports the insertion portion on an installation surface by causing an insertion direction of the information storage medium with respect to the insertion portion to be lowered to the front to intersect with a horizontal plane. In the support member, an intersection angle between the insertion direction and the horizontal plane is set to a predetermined acute angle at which the fingers of the person do not interfere with the installation surface when the information storage medium is inserted into the insertion portion.