Modular Electric Bed Rear Frame for Easy Disassembly and Transport
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Solution Overview
Problem
Conventional electric beds are bulky and difficult to transport or store due to their large size and complex design, making it challenging to dismantle them into manageable parts.
Innovation Solution
A rear frame for an electric bed featuring a modular design with a fixation rack, thigh supporting rack, lower leg supporting rack, support rack, extension racks, a link, and an extendible and retractable actuator, allowing for easy assembly and disassembly with a front frame for convenient storage and transport, and enabling the lower leg supporting rack to swing downward for user comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the electric bed is designed as a complete integrated unit, then the structural stability is improved, but the ease of transport and storage deteriorates
Solution Approach 1:
The electric bed is divided into separate modular components including a head section, foot section, and intermediate section that can be detached from one another. This segmentation allows each module to be transported and stored independently while maintaining structural integrity when assembled, resolving the contradiction between stability and ease of transport.
2Ease of operation
If the electric bed is dismantled into multiple parts, then the ease of storage and transport is improved, but the device complexity increases
Solution Approach 1:
The modular components are designed with universal connection interfaces and standardized mounting mechanisms that can be assembled and disassembled using the same procedures. This multi-functionality approach reduces overall device complexity by applying consistent design patterns across all connection points, making the dismantling and reassembly process straightforward despite having multiple parts.
3Device complexity
If the lower leg support is made fixed, then the device complexity is reduced, but the ease of operation deteriorates
Solution Approach 1:
The lower leg support is designed as a dynamic component capable of moving between a raised position and a lowered position. This dynamic feature allows the support to adapt to different user needs and positions, improving ease of operation while maintaining acceptable device complexity through the use of simple mechanical linkages and actuators.
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
Enables comfortable use with adjustable leg support and facilitates easy disassembly and reassembly for convenient storage and transport, improving user convenience and practicality compared to conventional electric beds.
Implementation Method 1
The actuator is extendible and retractable to change its length. When the actuator retracts from the initial status, the actuator pulls the rear extension rack to force the support rack to swing downwardly... When the actuator extends from the initial status, the actuator pushes the rear extension rack to force the support rack to swing upwardly
Implementation Method 2
The thigh supporting rack has a front end portion pivotally connected with the front end portion of the fixation rack... The lower leg supporting rack has a front end portion pivotally connected with the rear end portion of the thigh supporting rack
Data Source
AI summary
A rear frame adapted to form an electric bed with a front frame includes a fixation rack, a thigh supporting rack pivotally connected with the fixation rack, a lower leg supporting rack pivotally connected with the thigh supporting rack, a support rack located under the lower leg supporting rack and pivotally connected with fixation rack, a front extension rack, a rear extension rack, a link, and an actuator. The front extension rack is disposed to a bottom side of the thigh supporting rack, the rear extension rack is disposed to a bottom side of the support rack, the link is pivotally connected between the front and rear extension racks, and the actuator is pivotally connected between the fixation rack and the rear extension rack in a way that the lower leg supporting rack is swingable downwardly.