Adjustable Bed Frame with Linkage-Based Inclination Control
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Solution Overview
Problem
Conventional bed frames lack the ability to adjust inclination, and existing adjustable solutions, like medical beds, are complex and costly, whereas general cots have simplified structures but cannot meet user-specific comfort needs.
Innovation Solution
An electric adjustable bed frame with a front and rear support unit connected to a frame, featuring an activation device that adjusts the inclination by changing the distance between the frame and a plane, utilizing a three-bar linkage mechanism and a linear retractable device for comfortable positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional bed frame structure is used, then the structure is simple and cost is low, but the inclination cannot be adjusted
Solution Approach 1:
The bed frame is divided into separate front and rear support units that can independently adjust their inclination angles. Each support unit is a distinct module with its own adjustment mechanism, allowing independent control of front and rear sections to achieve various sleeping positions without requiring a completely complex integrated system.
Solution Approach 2:
The support units are designed with movable and adjustable components rather than fixed structures. The rear support unit includes a backrest portion that can be tilted, and the entire support unit can be adjusted between horizontal and inclined positions, transforming the static bed frame into a dynamic system capable of multiple configurations.
2Adaptability or versatility
If a medical bed mechanism is used to adjust tilt angle, then the inclination can be adjusted, but the structure becomes very complicated and cost increases
Solution Approach 1:
The patent employs simple, inexpensive adjustment mechanisms such as pivot connections, linkages, and manual or electric motors rather than complex medical-grade positioning systems. These simpler components achieve the necessary inclination adjustment functionality at a fraction of the cost and complexity of medical bed mechanisms, making the bed accessible for general household use.
Solution Approach 2:
The invention extracts only the essential inclination adjustment function from complex medical bed systems, implementing it through simplified mechanisms. By removing unnecessary complexity while retaining the core functionality of angle adjustment, the design achieves medical-bed-level adaptability with cot-level simplicity in manufacturing and structure.
3Ease of operation
If the front frame and rear frame are pivotally connected for folding, then handling and shipping are facilitated, but the entire bed frame cannot be adjusted to have a required inclination
Solution Approach 1:
The bed frame is segmented into front and rear frames that can be pivotally connected for folding purposes, while each segment also contains independent adjustment mechanisms. This segmentation allows the frame to serve dual purposes: easy folding for transport and independent inclination adjustment for comfortable positioning, resolving the contradiction between portability and adaptability.
Solution Approach 2:
The front and rear frames are designed to perform multiple functions: they can be pivotally connected for folding and shipping convenience, while simultaneously serving as adjustable support units for inclination control. This multi-functionality eliminates the need to choose between portability and adaptability, as both requirements are satisfied by the same structural design.
Data Source
AI summary
An adjustable bed frame includes a frame, a front support unit connected to the front end of the frame, and a rear support unit connected to the rear end of the frame. The front support unit includes a first top connected to the front end of the frame, and a first bottom contacting a first plane. The rear support unit includes a second top connected to the rear end of the frame, and a second bottom contacting a second plane. An activation device is connected between the rear support unit and the frame. The activation device drives the rear support unit or the second bottom to move or rotate relative to the frame to change the shortest distance between the second bottom and the frame, and to change the distance between the frame and the second plane. The inclination between the frame and the first and second planes is adjusted.