Rotatable POS Display Layout to Prevent Screen Interference
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Solution Overview
Problem
POS terminal devices face challenges in rotating operator and customer displays by 90 degrees horizontally without interference, especially when the display sizes exceed the housing size, as existing designs often result in collisions between the displays.
Innovation Solution
The POS terminal device is designed with operator and customer displays arranged such that their rear surfaces face each other, with rotation shafts positioned off-center to allow for 90-degree rotation without interference, ensuring that the displays can be rotated independently within a predetermined angle without colliding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the operator display and customer display are made large for better visibility, then the visibility of the screen is improved, but the displays may interfere and collide with each other when rotated by 90 degrees in the horizontal direction
Solution Approach 1:
The patent applies asymmetry by positioning the rotation shafts at different locations relative to the housing center line. The operator display rotation shaft is positioned at a first location while the customer display rotation shaft is positioned at a second location, creating an asymmetric configuration that allows both displays to rotate without colliding. This asymmetric arrangement enables large displays to be rotated by 90 degrees without interference between them.
2Adaptability or versatility
If either display is rotated by 90 degrees in the horizontal direction, then the installation flexibility is improved, but the displays may collide with each other when their sizes are larger than the housing
Solution Approach 1:
The patent resolves the collision problem by utilizing spatial dimensionality. By positioning the rotation shafts at different locations (first location and second location) and arranging the displays such that their rear surfaces face each other with lateral center points passing through the longitudinal center line, the invention creates a three-dimensional configuration that allows 90-degree rotation without collision, even when display sizes exceed housing dimensions.
Data Source
AI summary
In a POS terminal device (1) according to the present invention, a rotation center of an operator-side rotation shaft (31) is at a position spaced apart from a longitudinal center line of a housing (2), a rotation center of a customer-side rotation shaft (41) is at a position spaced apart from the center line on an opposite side of the operator-side rotation shaft (31), an operator display (3) is rotated by 90 degrees in a horizontal direction around the operator-side rotation shaft (31) in such a way that a lateral end surface having a shorter distance from the rotation center of the operator-side rotation shaft (31) approaches a customer display (4), and the customer display (4) is rotated by 90 degrees in the horizontal direction around the customer-side rotation shaft (41) in the same direction as the operator display (3).