Rotatable Container Flaps for Sortation Systems

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Solution Overview

Problem

Fulfillment centers face inefficiencies in processing and consolidating online orders due to large volumes and complexities in inventory management, leading to bottlenecks in sorting and packing operations, particularly when items from different locations need to be combined and transported efficiently.

Innovation Solution

Implementing container location flaps with increased degrees of freedom in sortation systems, which allow for easier removal of full containers, prevent item ejection, and facilitate manual and automated capacity determination, while also reducing wireless communication interference and enabling closer placement of sortation systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional fixed flaps are used in sortation systems, then the structure is simple and reliable, but container removal is difficult and labor-intensive when containers are full

Engineering Contradiction:

Improvecontainer removal easeVSAvoidflap mechanism complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by transforming the fixed, static flap structure into a dynamic system with multiple degrees of freedom. The flaps can now rotate horizontally, translate vertically, and fold, allowing them to adapt their position based on container fullness. This dynamic behavior enables automatic adjustment during container removal operations, reducing labor intensity while maintaining structural reliability.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The flap structure is segmented into multiple independent sections that can move relative to each other. Each flap segment can rotate, translate, or fold independently, providing granular control over the flap's configuration. This segmentation allows the system to achieve complex motion patterns while keeping each individual component relatively simple.

Inventive Principle:

Principle #1Segmentation

2Area of stationary object

If sortation systems are placed closer together to reduce space requirements, then space efficiency improves, but wireless communication interference increases

Engineering Contradiction:

Improvefacility space utilizationVSAvoidwireless communication interference

Core Design Contradiction:

Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The patent introduces mesh flaps as an intermediary element between sortation systems. These flaps act as physical barriers that block electromagnetic signals, preventing wireless communication interference between closely spaced systems. The mesh structure allows visibility and airflow while effectively attenuating radio frequency signals, enabling safe placement of sortation systems at reduced distances.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If mesh flaps are used to prevent item ejection and enable visibility, then item containment improves, but determination of container capacity becomes more difficult

Engineering Contradiction:

Improveitem containment reliabilityVSAvoidcontainer capacity detection

Core Design Contradiction:

ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent applies dynamics by making the mesh flaps movable rather than fixed. The flaps can automatically adjust their position based on container fullness, moving to different configurations that expose different portions of the container contents. This dynamic adjustment allows sensors to detect container capacity through the mesh structure by observing flap position changes or by creating openings at optimal detection points.

Inventive Principle:

Principle #15Dynamics

4Reliability

If flaps are positioned to prevent item ejection from containers, then item loss prevention improves, but obstruction of container removal from sortation system increases

Engineering Contradiction:

Improveitem ejection preventionVSAvoidcontainer removal ease

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent implements a dynamic flap system that automatically adjusts its position based on real-time conditions. When a container is being removed, the flaps detect the motion and adjust to clear the removal path while maintaining item containment during normal operation. This dynamic behavior resolves the contradiction by providing context-dependent functionality.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent applies preliminary anti-action by pre-positioning the flaps in a configuration that prevents item ejection during normal operation, but includes mechanisms that anticipate container removal events. The system prepares the flaps in advance to move out of the way when removal is initiated, preventing obstruction before it occurs.

Inventive Principle:

Principle #9Preliminary anti-action

Data Source

PatentUS11376633B1Container location flaps with increased degrees of freedom for sortation systems

Publication Date: 2022.07.05 AMAZON TECH INC

AI summary

Systems, methods, and computer-readable media are disclosed for container location flaps with increased degrees of freedom for sortation systems. In one embodiment, an example rotatable flap for use with an item sortation machine may include a first portion having a first frame and a first mesh grid coupled to the first frame, a second portion having a second frame and a second mesh grid coupled to the second frame, and a first coupler configured to couple the second portion to the first portion. The second portion may be configured to rotate from a first position coplanar to the first portion to a second position transverse to the first portion, and the first portion may be coupled to a frame of the item sortation machine and configured to rotate with respect to the frame.