Back adjustable electrical bed frame
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Solution Overview
Problem
Existing electric bed frames experience significant dislocation between the mattress and bed frame when the backrest is raised, leading to friction and discomfort during use, which affects aesthetics and functionality.
Innovation Solution
A back adjustable electrical bed frame design with a back panel pivot positioned at a quarter to a half of the lower part of the back panel, allowing for reduced dislocation and friction by using a scissor support assembly and a leg pusher motor to adjust the angle of the back panel, thereby minimizing the gap between the mattress and bed frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the backrest is raised with a large angle, then the bed functionality is improved, but the dislocation between the mattress and bed frame increases significantly
Solution Approach 1:
The patent applies dynamics by making the bed frame structure movable and adjustable through multiple pivot points. The back panel pivot positioned at quarter to half of the lower part of the back panel allows dynamic adjustment of the backrest angle, enabling the frame to adapt to different positions while maintaining proper alignment with the mattress throughout the range of motion.
Solution Approach 2:
The bed frame is segmented into multiple independent panels (head panel, back panel, buttocks panel, thigh panel, shank panel) that can move relative to each other. This segmentation allows each section to adjust independently, preventing cumulative dislocation and maintaining alignment between the mattress and frame during backrest elevation.
2Ease of operation
If the back pusher motor pushes the backrest, then the backrest angle is adjusted, but strong friction occurs between the mattress and human body
Solution Approach 1:
The patent introduces an intermediary column structure that connects the base to the back panel pivot. This column acts as a mediator that facilitates smooth movement of the back panel relative to the base, reducing direct friction between the mattress and the moving components. The column provides a controlled interface that minimizes resistance during backrest adjustment.
3Device complexity
If the pivot is configured at the bottom of the backrest bracket, then the structure is simple, but the mattress and bed frame have significant dislocation when the backrest stands up
Solution Approach 1:
The patent changes the critical parameter of pivot position from the bottom of the backrest bracket to a location at quarter to half of the lower part of the back panel. This parameter change fundamentally alters the geometry of movement, allowing the backrest to elevate while maintaining proper alignment between the mattress and frame, eliminating the triangular gap that occurs with bottom-mounted pivots.
Data Source
AI summary
A back adjustable electrical bed frame comprises a head panel, a back panel, a buttocks panel, a thigh panel, a shank panel, a back pusher motor and a leg pusher motor. The leg pusher motor drives the buttocks panel through a scissor support assembly. The shank panel, parallel to the base, moves back and forth. The back panel has a back panel pivot at a quarter to a half of its lower part. The back panel is fixed to the base by a column having one end fixed to the base and the other end connected to the back panel pivot. The back pusher motor has a front end pivot connected with the back panel and a rear end pivot fixedly connected with the base. The front end pivot, the rear end pivot and the back panel pivot form a triangle to position an angle of the back panel.