Shopping Cart Anti-Theft Pole with One-Way Interlock

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Solution Overview

Problem

The existing anti-theft mechanisms for shopping carts, such as locking wheels and poles, are often impractical to install and maintain, particularly in retail environments without alternate entrances, leading to theft and inconvenience for retailers and shoppers.

Innovation Solution

A shopping cart equipped with a vertically extending anti-theft pole mounted using a one-way interlock assembly that allows easy installation without tools or skilled labor, allowing the pole to be locked in place without removal, enabling secure deployment within retail premises.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a pole is used as anti-theft mechanism, then theft prevention is improved, but installation complexity increases

Engineering Contradiction:

Improvetheft preventionVSAvoidinstallation complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The anti-theft system is divided into separate components: a pole that can be detached and a receptacle with one-way interlock that remains on the cart. This segmentation allows the pole to be easily installed and removed without complex tools or skilled labor, resolving the contradiction between theft prevention and installation complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The one-way interlock mechanism enables the pole to be installed automatically without requiring specialized tools or trained personnel. The interlock design allows the pole to be inserted and locked into place through simple manual manipulation, making the installation process self-service friendly and eliminating the need for complex installation procedures.

Inventive Principle:

Principle #25Self-service

2Reliability

If pole is installed on cart, then anti-theft capability is improved, but cart entry capability deteriorates

Engineering Contradiction:

Improveanti-theft capabilityVSAvoidcart entry capability

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The pole is designed to be dynamically installable and removable. The one-way interlock allows the pole to be easily inserted into the receptacle on the cart, but can be removed when needed. This dynamic capability enables the pole to be installed for anti-theft protection during storage, then removed or repositioned to allow cart entry through doorways and arches, resolving the contradiction between anti-theft capability and cart entry capability.

Inventive Principle:

Principle #15Dynamics

3Reliability

If traditional fastening methods are used, then pole security is improved, but installation time increases

Engineering Contradiction:

Improvepole securityVSAvoidinstallation time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The fastening mechanism is extracted from traditional multi-step fastening procedures and replaced with a simplified one-way interlock system. The interlock design allows the pole to be securely attached through a single insertion motion, eliminating the need for multiple fastening steps, tools, or specialized personnel, thereby dramatically reducing installation time while maintaining pole security.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS11772695B2Shopping cart with anti-theft pole

Publication Date: 2023.10.03 CART SOURCE LLC

AI summary

A shopping cart with a vertically extended anti-theft pole. The pole is mounted to the cart using a one-way interlock, that allows the pole to be mounted to the cart on premises, but not easily removed without damaging or tampering with the interlock. In this way, the carts may be brought into premises of interest, and equipped with the anti-theft device after delivery/deployment without any tools, skilled labour, or fasteners.