Rotatable Sling Bar Arms for Patient Lifting Adaptability

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Solution Overview

Problem

Existing sling bar devices for person lifting systems are limited in their versatility, requiring frequent interchange for different circumstances due to fixed configurations.

Innovation Solution

A sling bar device with a central hub and rotatable arms that can adjust angular positions, allowing for multiple configurations by rotating the arms to change connection locations, enabling adaptable usage in various scenarios.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed configuration sling bar device is used, then the device structure is simple, but the adaptability for different lifting circumstances is poor

Engineering Contradiction:

ImproveadaptabilityVSAvoiddevice complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The sling bar device incorporates rotatable arms that can be positioned at different angles relative to the central hub, allowing the connection locations to be dynamically adjusted. This dynamic configuration enables the same device to adapt to various lifting circumstances without requiring multiple different devices, thereby improving adaptability while maintaining reasonable device complexity.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If multiple sling bar devices are used for different circumstances, then the adaptability is improved, but the device complexity and number of components increases

Engineering Contradiction:

ImproveversatilityVSAvoidnumber of components

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The sling bar device is designed with multiple rotatable arms that can be positioned in various configurations, enabling a single device to perform multiple functions across different lifting scenarios. This multi-functionality eliminates the need for maintaining and interchanging multiple specialized devices, thereby achieving versatility while reducing the total number of components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention combines multiple functional capabilities into a single integrated device structure. By merging the functionality of what would traditionally require multiple separate sling bar devices into one device with adjustable arms, the system achieves versatility without proportionally increasing component count or complexity.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If fixed configuration sling bar devices are interchanged, then the adaptability is improved, but the loss of time for device interchange occurs

Engineering Contradiction:

ImproveadaptabilityVSAvoidtime for device interchange

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The rotatable arms can be quickly repositioned between different angular positions to change the connection locations, allowing rapid adaptation to different lifting circumstances without the time-consuming process of physically interchanging entire devices. This dynamic adjustment mechanism significantly reduces the time penalty associated with adapting to varying operational requirements.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS11278460B2Sling bar devices for person lifting systems and methods for operating sling bar devices

Publication Date: 2022.03.22 LIKO RES & DEV

AI summary

A sling bar device includes a central hub and a plurality of sling bar arms extending outwardly from the central hub. At least one of the plurality of sling bar arms is rotatable about the central hub to move a connection location from one angular position to another angular position relative to the central hub.