Cart locking and dispensing device
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Solution Overview
Problem
Existing cart management systems require manual intervention for unlocking and dispensing shopping carts, often involving coins or payments, and lack efficient mechanisms for coordinated movement and stacking.
Innovation Solution
A dual-lever mechanism with a drive belt that alternately locks and releases carts through coordinated movements, allowing for automated acceptance and dispensing of carts without customer interaction, using engines, sensors, and a base that moves forward and backward to manage the stacking process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual intervention with coins or payments is used to unlock and dispense carts, then cart release function is achieved, but operational efficiency is reduced and customer convenience is worsened
Solution Approach 1:
The system enables automated cart dispensing and return operations without requiring customers to insert coins or make payments. The dual-lever mechanism automatically locks carts in the stack and releases them when needed, allowing the system to serve itself rather than requiring manual intervention from customers.
Solution Approach 2:
The patent replaces the traditional mechanical coin-operated locking mechanism with an automated dual-lever system controlled by sensors and motors. This substitution eliminates the need for currency handling and manual payment operations, improving both efficiency and ease of use.
2Extent of automation
If automated dual-lever mechanism with drive belt is used for cart management, then operational efficiency and automation are improved, but device complexity increases
Solution Approach 1:
The dual-lever mechanism is designed with nested components where the first lever and second lever are integrated within a compact structure. The drive belt system is also integrated into the existing framework, allowing the automated mechanism to be housed within the available space without requiring a completely new complex structure.
Solution Approach 2:
The automated system is divided into distinct functional modules: the first lever for locking, the second lever for dispensing, the drive belt mechanism, and the control system with sensors. This segmentation allows each component to be optimized independently and simplifies maintenance while achieving high automation.
3Productivity
If coordinated movement of levers and drive belt is implemented, then cart stacking efficiency is improved, but mechanical complexity increases
Solution Approach 1:
The patent combines the locking function (first lever) and dispensing function (second lever) into a single integrated mechanism that operates through coordinated movement. The drive belt synchronizes the motion of both levers, allowing them to work together as one unified system rather than separate mechanisms, thereby improving stacking efficiency while managing mechanical complexity.
Data Source
AI summary
A device for dispensing and locking carts disposed in a stack, comprising: a dual-lever mechanism, comprising: a locking lever which is blocking movement of a first cart of a plurality of carts disposed in a stack when in open position; a base adjacent to said locking lever which is movable forward and backward with respect to the stack; and a dispensing lever mounted on the base which is blocking movement of a second cart of the plurality of carts when in open position; and a drive belt driving the plurality of carts in parallel to movement of said base by moving forward and backward in coordination with the base.