Reel Handling Device with Adjustable A-Frame Assemblies

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Solution Overview

Problem

Existing methods for lifting, maneuvering, and moving large reels or spools of wound materials are cumbersome, often requiring cranes or forklifts, and result in strenuous manual handling, damage to the reels, and limited directional movement.

Innovation Solution

A device comprising a pair of pivotally connected angularly-oriented vertical support bars and a retractable member, allowing for adjustable positioning and zero-turn radius movement of reels, with integrated rollers for easy winding and unwinding, and the ability to be reused across various reel sizes and locations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If cranes or forklifts are used to lift and move reels, then the lifting and moving capability is improved, but the device complexity and cost increase

Engineering Contradiction:
Improvelifting capabilityVSAvoidequipment complexity
Core Design Contradiction:
ForceVSDevice complexity

Solution Approach 1:

The device divides the reel support function into multiple A-frame assemblies, each independently supporting one end of the reel. This segmentation allows the system to achieve heavy lifting capability through distributed support while keeping each individual assembly relatively simple and manageable in complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The A-frame assemblies are designed to be universal and adaptable to different reel sizes and weights. The same basic assembly configuration can handle various reel dimensions by adjusting the spacing between assemblies, eliminating the need for specialized equipment for different reel types and reducing overall system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If traditional manual handling methods are used, then the equipment cost is reduced, but the ease of operation deteriorates and physical strain increases

Engineering Contradiction:
Improvehandling easeVSAvoidmanual handling burden
Core Design Contradiction:
Ease of operationVSWeight of moving object

Solution Approach 1:

The device enables self-service operation where the reel's own weight and structure are utilized in the lifting mechanism. The A-frame assemblies leverage the reel's flanges and central bore for support, allowing the system to lift and maneuver heavy reels without requiring external heavy equipment or excessive manual effort.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The device introduces directional movement capability by allowing the reel to be pushed in any direction on the ground while supported by the A-frame assemblies. This adds a horizontal movement dimension that complements the vertical support function, enabling easy repositioning without manual rolling or complex positioning mechanisms.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If fixed-size support structures are used, then the manufacturing precision is improved, but the adaptability to different reel sizes deteriorates

Engineering Contradiction:
Improvereel size adaptabilityVSAvoidstructural precision
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The device employs dynamic adjustability where the spacing and positioning of the A-frame assemblies can be modified to accommodate different reel sizes. This dynamic configuration allows the same structural design to adapt to various reel dimensions while maintaining manufacturing precision through standardized components and consistent geometric relationships.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system achieves adaptability by changing key parameters such as the distance between A-frame assemblies and their positioning relative to the reel flanges. These parameter adjustments allow the device to work with different reel sizes without requiring different structural designs, maintaining manufacturing precision through controlled parameter variation rather than structural complexity.

Inventive Principle:
Principle #35Parameter changes

4Productivity

If reels are moved by manual rolling on the ground, then the equipment complexity is reduced, but the productivity and movement efficiency deteriorate

Engineering Contradiction:
Improvemovement efficiencyVSAvoidsupport structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The support structure is segmented into multiple independent A-frame assemblies that can be positioned at different locations along the reel. This segmentation allows the reel to be supported at multiple points simultaneously, enabling efficient movement and positioning without requiring a single complex support mechanism, thus improving productivity while managing complexity.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11365084B2Devices for lifting, maneuvering, winding and unwinding reels
Publication Date: 2022.06.21 SONOCO DEVELOPMENT INC
  • US11365084B2 patent drawing
  • US11365084B2 patent drawing
  • US11365084B2 patent drawing

AI summary

An apparatus for lifting, maneuvering, winding or unwinding reels comprising a pair of devices having an elongated retractable frame having a first end and a second end which are adjustable relative to one another; a first crossbar having two opposite ends, the first crossbar being mounted to a first end of the elongated retractable frame; a second crossbar having two opposite ends, the second crossbar being mounted to a second end of the elongated retractable frame; a first roller carrier mounted on the first crossbar; a second roller carrier mounted on the second crossbar, parallel to the first roller carrier, wherein the roller rotates axially about the roller carrier; and a means for adjusting the first and second end of the elongated retractable frame relative to one another so that the first and second ends of the elongated retractable frame are moved closer together and further apart.