Electric bed
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Solution Overview
Problem
Existing electric beds suffer from poor stability of the center of gravity and limited applicability, particularly when converting between bed and chair modes, and pose difficulties for users with varying heights and mobility issues.
Innovation Solution
An electric bed design featuring a movable auxiliary bed frame with a sliding mechanism, electric telescopic rods, and a linkage member that adjusts the position of the backing plate to enhance stability and support, allowing for better center of gravity distribution and adjustable height for different users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the bed plate is folded and unfolded so that only one end is connected with the bed frame, then the electric bed can be changed between bed and chair modes, but the overall center of gravity becomes unstable and the front end is easily upwarped
Solution Approach 1:
The patent applies dynamics by making the bed frame structure movable and adjustable. The front end of the bed plate is rotatably connected to the bed frame, allowing the bed plate to dynamically adjust its position and angle. This rotational movement enables the bed to transition between bed and chair modes while maintaining stability through controlled motion rather than fixed connections.
Solution Approach 2:
The patent changes the parameter of center of gravity position by allowing the bed plate to rotate and adjust its angle relative to the bed frame. By changing the angular parameter of the bed plate connection, the center of gravity can be repositioned to maintain stability during mode transitions, preventing the front end from upwarping.
2Device complexity
If the electric bed size is kept relatively fixed when changed from bed to chair, then the structure is simple, but users with shorter height cannot effectively contact the backing plate and lack waist support
Solution Approach 1:
The backing plate is rotatably connected to the bed plate, making it a dynamic component that can adjust its position and angle. This allows the backing plate to move vertically and angularly to accommodate users of different heights, providing proper waist support without requiring a completely complex adjustable structure.
Solution Approach 2:
The bed structure is segmented into multiple rotatably connected components: the bed plate connected to the bed frame, and the backing plate connected to the bed plate. This segmentation allows independent adjustment of each component, enabling the backing plate to adapt to different user heights while maintaining overall structural simplicity.
3Ease of manufacture
If the electric bed structure is the same as common bed, then it is simple to manufacture, but it is inconvenient for elderly or those with limited mobility to get up
Solution Approach 1:
The bed plate's rotatable connection to the bed frame enables dynamic adjustment of the bed plate's angle and position. This allows the bed to be tilted or raised to assist elderly or mobility-impaired users in getting up, while still using simple mechanical components that are easy to manufacture.
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
The design improves the stability and usability of the electric bed by shifting the center of gravity backward when unfolding, providing adequate support for users of varying heights and facilitating easier transitions between bed and chair modes, especially beneficial for the elderly or those with mobility limitations.
Implementation Method 1
a first electric telescopic rod and a second electric telescopic rod for driving the bottom plate and the backing plate to be unfolded and stored
Implementation Method 2
a movable auxiliary bed frame connected to the main bed frame through a sliding mechanism
Implementation Method 3
the front end of the base plate is rotatably connected to the front end of the auxiliary bed frame, the rear end of the bottom plate is rotatably connected to the front end of the base plate
Data Source
AI summary
An electric bed comprises a main bed frame and a movable auxiliary bed frame, wherein the auxiliary bed frame is sequentially provided with a bottom plate, a base plate and a backing plate, the front end of the base plate is rotatably connected to the front end of the auxiliary bed frame, the rear end of the bottom plate is rotatably connected to the front end of the base plate, the front end of the backing plate is rotatably connected to the rear end of the base plate, a first electric telescopic rod and a second electric telescopic rod for driving the bottom plate and the backing plate to be unfolded and stored are provided between the bottom plate and the main bed frame and between the backing plate and the auxiliary bed frame, respectively, and a linkage member is provided between the bottom plate and the main bed frame.