Checkout device
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Solution Overview
Problem
Limited space in stores hinders the installation of multiple checkout devices, limiting parallel checkout processes for customers.
Innovation Solution
A checkout device design featuring two overlapping checkout machines, each with coin and banknote processing units, allowing for efficient use of space and parallel processing capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If more checkout devices are installed to increase parallel checkout capacity, then productivity is improved, but the area occupied increases beyond available store space
Solution Approach 1:
The patent transitions from a two-dimensional horizontal arrangement of checkout devices to a three-dimensional vertical stacking configuration. Multiple checkout machines are arranged in layers along the vertical direction, allowing parallel checkout operations to occur in different spatial levels while occupying the same horizontal footprint, thereby resolving the contradiction between increasing productivity and limiting installation area.
Solution Approach 2:
The patent implements a nested structure where checkout machines are stacked vertically one above another, with each machine positioned in a layer that occupies overlapping horizontal space. This nesting approach enables multiple independent checkout functions to coexist within a compact vertical envelope, maximizing parallel processing capacity without expanding the horizontal installation area.
2Productivity
If multiple checkout machines are placed side by side to enable parallel operations, then productivity is improved, but the device complexity increases due to space management requirements
Solution Approach 1:
By introducing the vertical dimension as the primary organizational axis, the patent simplifies the spatial arrangement logic. Instead of managing complex two-dimensional layouts with multiple access paths and circulation spaces, the vertical stacking configuration provides a straightforward one-dimensional progression from lower to upper layers, reducing overall system complexity while maintaining parallel operational capacity.
Data Source
AI summary
A checkout device includes: a first checkout machine that includes a first coin checkout machine and a first banknote checkout machine; and a second checkout machine that includes a second coin checkout machine and a second banknote checkout machine. The first checkout machine and the second checkout machine at least partially overlap each other when viewed from a direction perpendicular to an installation surface of the first checkout machine and the second checkout machine.