Lifting Device With Friction Brake For Controlled Rotation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lifting devices lack flexibility and safety when transferring disabled individuals between locations, often requiring multiple devices and posing risks of injury due to lack of control during rotation.
Innovation Solution
A lifting device comprising a support column, first and second arms, and a friction brake, allowing 360-degree pivoting with controlled rotation, which can be mounted between stationary surfaces for versatile and safe transfers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing lifting devices are used for transferring disabled individuals, then basic lifting function is provided, but flexibility and safety are reduced due to lack of control during rotation
Solution Approach 1:
The friction brake provides continuous feedback control during rotation by allowing the caregiver to modulate braking force in real-time, creating a closed-loop control system that enhances safety while maintaining ease of operation
Solution Approach 2:
The friction brake enables dynamic change in rotational speed parameter during operation, allowing smooth acceleration and deceleration control that improves both safety and operational ease
2Adaptability or versatility
If multiple lifting devices are used to provide flexibility, then coverage of different locations is improved, but device complexity and cost increase
Solution Approach 1:
The lifting device is designed with universal mounting capabilities between various stationary surfaces and a 360-degree rotation range, enabling a single device to perform multiple transfer locations and scenarios that previously required multiple specialized devices
3Reliability
If friction brake is added to control rotation, then safety is improved, but device complexity increases
Solution Approach 1:
The friction brake is designed as a separate, extractable component that can be independently adjusted and maintained, reducing overall system complexity by isolating the safety control function from the main lifting mechanism
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances caregiver confidence and reduces injury risk by providing a flexible, safe, and controlled mechanism for transferring disabled persons across various locations with adjustable reach and weight capacity.
Implementation Method 1
The friction brake is configured to slow the rotation of the support column and first arm around the axis
Data Source
AI summary
A lifting device, configured to attach to a lifting head and sling to move a disabled person from one location to another including a support column, a first arm, a second arm, and a friction brake. The support column includes an axis and is configured to attach between two stationary surfaces. The first arm is fixedly connected to the support column. The second arm is pivotally connected to the first arm at a pivot joint. The second arm is configured to connect to the lifting head. The support column and first arm are configured to rotate around the axis, and the second arm is configured to pivot around the pivot joint such that the second arm second end rotates three hundred and sixty degrees around the axis.