Single-Driver Linkage Structure for Coordinated Bed Section Lifting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing bed frames can only lift one area at a time, which may be uncomfortable for users due to the stresses of modern life leading to insomnia and insufficient rest.
Innovation Solution
A single driver connecting structure for electric beds or chairs, comprising a primary frame with three structural components and a link rod, where a driver with a positioning portion and an extendable rod pivots the components through sliding slots and apertures, allowing for multiple pivoted movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single driver is used to control multiple structural components, then device complexity is reduced, but control precision and movement coordination become more difficult
Solution Approach 1:
A link rod is introduced as an intermediary mechanical element between the single driver and the multiple structural components. The link rod transmits and distributes the driving force from one driver to multiple pivot points, enabling coordinated movement of multiple components without requiring multiple independent drivers, thus reducing system complexity while maintaining control capability
Solution Approach 2:
The system employs dynamic movement sequences where the driver controls different components at different stages of operation. Through the sliding slots and pivot connections, the link rod dynamically redirects forces to achieve sequential or simultaneous movement of structural components based on operational requirements
2Adaptability or versatility
If multiple structural components are connected via pivoting joints, then flexibility and adaptability are improved, but structural stability may be compromised
Solution Approach 1:
The frame is segmented into multiple structural components (first, second, and third structural components) connected by pivot joints and angle brackets. This segmentation allows each component to move independently relative to others, providing flexibility for different positioning requirements while maintaining overall structural integrity through the connected architecture
Solution Approach 2:
Semicircular ends are provided on the sliding slots to enable smooth rotational movement and prevent stress concentration at sharp corners. This curved geometry allows the connecting elements to pivot smoothly between components, enhancing movement flexibility while distributing mechanical stresses evenly across the joint interfaces
Data Source
AI summary
A single driver connecting structure for an electric bed or chair comprises: a primary frame, a driver and a link rod. The second structural component has two first angle brackets, and the first angle brackets each include a sliding slot. The third structural component has two second angle brackets, and each second angle bracket includes an aperture. The driver has a positioning portion and an extendable rod, and the positioning portion is pivoted to the securing aperture. The link rod has a first aperture and a second aperture. The first aperture is pivoted to the through hole of the driver with a control pin, and the control pin is slibable in, and limited in, the sliding slot. The second aperture and the aperture of the third structural component are pivoted together such that the driver drives the link rod to affect different movements of the main frame.