Card Reader Housing Assembly with Tolerance-Compensating Flap Alignment
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Solution Overview
Problem
Existing card reader arrangements in housings with pivotable flaps face issues with unreliable card insertion and dispensing due to shape and position tolerances, leading to inconsistent alignment when the flap is closed.
Innovation Solution
A card reader arrangement with an elastically deformable element and positioning elements that ensure the card reader is reliably positioned and aligned when the flap is closed, using a spring-loaded mounting mechanism to compensate for tolerances and maintain alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a closure flap with a recess is used to allow card access when closed, then card insertion and dispensing is enabled when the flap is closed, but due to shape and position tolerances the alignment between the recess and card reader becomes unreliable
Solution Approach 1:
The card reader is made movable relative to the housing via an elastically deformable element, allowing dynamic adjustment of the card reader's position. This enables the system to compensate for misalignment caused by flap tolerances, ensuring reliable card access when the flap is closed while maintaining the protective closed state.
Solution Approach 2:
The elastically deformable element changes the positional parameter of the card reader based on the flap's position. When the flap moves from open to closed, the elastic element deforms to adjust the card reader's position, transforming the rigid position into a flexible one that adapts to tolerance variations.
2Device complexity
If the card reader is fixed in the housing, then the structure is simple and stable, but the card reader cannot be repositioned to compensate for tolerances when the flap moves
Solution Approach 1:
The card reader mounting is changed from a fixed rigid structure to a dynamic elastic mounting. The elastically deformable element allows the card reader to move and adjust its position dynamically, compensating for tolerance variations while maintaining overall structural simplicity.
Solution Approach 2:
The mounting structure is segmented into the housing, the elastically deformable element, and the card reader. This segmentation allows the card reader to be independently positioned and adjusted relative to the housing, enabling tolerance compensation without redesigning the entire structure.
3Reliability
If the card reader is made movable to compensate for tolerances, then alignment reliability improves, but the device complexity increases due to the elastic mounting mechanism
Solution Approach 1:
The mounting mechanism uses a single elastically deformable element that changes its deformation parameter based on operational needs. This simple parameter-based adjustment achieves reliable alignment without requiring complex multi-component mounting mechanisms.
Solution Approach 2:
The elastically deformable element automatically adjusts the card reader's position in response to flap movement and tolerance variations, without requiring external control systems or complex actuation mechanisms. The elastic element self-regulates to maintain optimal alignment.
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
Ensures reliable and consistent card insertion and dispensing into and from the card reader, even with tolerances, while preventing liquid ingress and minimizing unwanted movement.
Implementation Method 1
The arrangement has an elastically deformable element for resiliently supporting the card reader
Data Source
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AI summary
The invention relates to an assembly (10) having a card reader (12) arranged in a housing (100). The housing (100) comprises a pivotable flap (102), which in an opened state enables access to the card reader (12) and in a closed state prevents access to the card reader (12). The flap (102) has an opening (104), through which a card can be fed to the card reader (12) and/or can be ejected by the card reader (12) in the closed state of the flap (102). The assembly (10) has an elastically deformable element (14) for resiliently supporting the card reader (12). The assembly (10) also has a first positioning element (16) for positioning the card reader (12), which first positioning element is arranged on the flap (102) in such a way that the first positioning element faces the card reader (12) in the closed state of the flap (102). When the flap (102) is moved from the open state into the closed state, the first positioning element (16) moves the card reader (12) in such a way that the card reader (12) is arranged in a predefined position relative to the flap (102) in the closed state of the flap (102).