Electric adjustable bed
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Solution Overview
Problem
Traditional electric adjustable beds experience a reduction in bed length when the bed posture is adjusted, leading to a protruding mattress that lacks support, resulting in a shorter service life.
Innovation Solution
An electric bed with an adjustable bed length design featuring an upper and lower bed frame, where at least one bedboard is pivotable, with a moving component that adjusts the distance between the upper head and foot bed frames to maintain bed length, utilizing motors and connecting rods to pivot the bedboards and extend the bed length as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the bedboards are hinged in end-to-end relation to allow posture adjustment, then the bed body posture can be adjusted, but the bed length is shortened and the mattress protrudes
Solution Approach 1:
The bed frame incorporates a moving component that dynamically adjusts the distance between the head bed frame and foot bed frame. This moving component transitions between a rest position (maintaining original bed length) and an extension position (increasing bed length), allowing the bed to adapt its length based on the pivoting angle of the bedboards during posture adjustment
Solution Approach 2:
The moving component is designed to compensate for the length reduction caused by bedboard pivoting. By extending the distance between head and foot bed frames in advance or concurrently with the pivoting action, the system counteracts the shortening effect, preventing mattress protrusion and maintaining proper bed length
2Adaptability or versatility
If the bed length is shortened due to pivoting movement, then the bed can achieve desired posture, but the mattress is not supported and service life is reduced
Solution Approach 1:
The moving component dynamically responds to the pivoting angle of the bedboards, automatically adjusting the bed frame length to maintain proper mattress support. This dynamic adjustment ensures the mattress remains fully supported throughout the range of motion, preventing damage and extending service life
Solution Approach 2:
The system uses the pivoting angle of the bedboards as feedback to control the moving component's position. The moving component transitions between rest and extension positions according to the pivoting angle, creating a feedback mechanism that ensures the bed length is always appropriate for maintaining mattress support
3Length of moving object
If the upper head bed frame and upper foot bed frame are separated, then the bed length can be extended, but the device complexity increases
Solution Approach 1:
The upper bed frame is segmented into a head bed frame and a foot bed frame that can move independently relative to each other. This segmentation allows the foot bed frame to be positioned at different distances from the head bed frame, enabling bed length extension while maintaining a relatively simple overall structure through modular design
Data Source
AI summary
Disclosed is an electric bed with an adjustable bed length, containing an upper head bed frame, an upper foot bed frame, a lower bed frame, and a plurality of bedboards with at least one pivotable relative to the lower bed frame. At least one of the upper head bed frame and the upper foot bed frame is fixed/immobile while the other contains a moving component to move between a rest position and an extension position. At least one pivotable bedboard keeps horizontal and the upper head bed frame is away from the upper foot bed frame by Distance 1 at the rest position, while the at least one pivotable bedboard pivots and there is Distance 2 longer than Distance 1 between the upper head bed frame and the upper foot bed frame at the extension position.