Movable Dunnage Supports for Ergonomic Container Access

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Solution Overview

Problem

Existing container designs for shipping and assembly in the automotive industry are ergonomically unfriendly, causing strain and injury to workers due to the need for workers to walk around or bend to access parts, leading to inefficiencies and increased costs from reduced container capacity and higher labor costs.

Innovation Solution

A container with stationary tracks and movable slider assemblies that allow products to be easily loaded and unloaded from a front position, reducing the need for workers to stretch or bend, and incorporating space limiters to manage the movement of support member assemblies for efficient product handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of stationary object

If workers access parts from the rear or opposite end of the container, then container length can be reduced, but worker ergonomics deteriorate and physical trauma increases

Engineering Contradiction:
Improvecontainer lengthVSAvoidworker ergonomics
Core Design Contradiction:
Length of stationary objectVSEase of operation

Solution Approach 1:

The support member assemblies are made movable along tracks, allowing dynamic repositioning of product during loading and unloading operations. This enables workers to access product from ergonomic positions without requiring the container to be excessively long, as the support members can be moved to bring product within easy reach.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The movable support member assemblies act as intermediaries between the fixed container structure and the product. By moving these support members along tracks, the system mediates between the constraint of fixed container length and the need for ergonomic product access, allowing product to be positioned optimally regardless of container dimensions.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Length of stationary object

If workers bend down to remove parts from lower portions of the container, then container height can be reduced, but worker ergonomics deteriorate and strain increases

Engineering Contradiction:
Improvecontainer heightVSAvoidworker ergonomics
Core Design Contradiction:
Length of stationary objectVSEase of operation

Solution Approach 1:

The support member assemblies can move vertically along the tracks, allowing dynamic adjustment of product height during operations. This enables product to be positioned at ergonomic heights for worker access, eliminating the need for workers to bend down repeatedly, while the container itself can maintain a compact height.

Inventive Principle:
Principle #15Dynamics

3Quantity of substance

If multiple layers of parts are stored in the container, then container capacity increases, but worker ergonomics deteriorate due to repeated bending motions

Engineering Contradiction:
Improvecontainer capacityVSAvoidworker ergonomics
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The movable support member assemblies allow each layer of product to be independently repositioned vertically along the tracks. This enables workers to access product from multiple layers at ergonomic heights by moving the support members, rather than bending down for lower layers, thereby maintaining high container capacity while preserving worker ergonomics.

Inventive Principle:
Principle #15Dynamics

4Ease of operation

If container length is reduced to eliminate the need for workers to walk around, then worker ergonomics improve, but container capacity decreases

Engineering Contradiction:
Improveworker ergonomicsVSAvoidcontainer capacity
Core Design Contradiction:
Ease of operationVSQuantity of substance

Solution Approach 1:

The movable support member assemblies compensate for reduced container length by dynamically repositioning product during operations. This allows the container to be shorter while still providing full access to all product, as the support members can be moved to bring product within easy reach of workers, thereby maintaining both ergonomic operation and effective container capacity.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS9611075B2Container having movable dunnage supports for supporting dunnage
Publication Date: 2017.04.04 BRADFORD CO
  • US9611075B2 patent drawing
  • US9611075B2 patent drawing
  • US9611075B2 patent drawing

AI summary

A container for holding product therein during shipment and being returned for reuse has a body, horizontal and vertical tracks attached to opposite sides of the body, and a plurality of dunnage supports extending between the tracks. Each dunnage support may be a unitary member or a multi-piece member including sliders or end members located at the ends of a tubular support. The dunnage supports support dunnage for supporting products for storage or shipment.