Foldable electric bed
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Solution Overview
Problem
Conventional electric beds are inconvenient for users, particularly pregnant women and obese individuals, as they increase abdominal pressure when lifting the back, and users may be displaced from the bed's head area, requiring caregiver assistance. Additionally, the beds are heavy and bulky due to added mechanisms for posture adjustment, increasing costs.
Innovation Solution
A foldable electric bed design featuring a front and rear frame, slide portions, and actuators that allow the buttock supporting unit to slide forward when the back is lifted, maintaining user proximity to the bed head and enabling easy access to items, while also allowing the bed to be folded for storage and transportation, reducing overall size and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electric bed lifts the user's back by increasing the inclination angle, then the back support function is improved, but the abdominal pressure increases and the user's shoulder moves away from the head of the bed
Solution Approach 1:
The patent applies the dynamics principle by making the buttock supporting unit movable along the bed frame rather than fixed. When the back is lifted, the buttock supporting unit automatically slides forward to maintain the user's position relative to the head of the bed, preventing both abdominal pressure increase and shoulder displacement. This dynamic adjustment resolves the contradiction between providing effective back support and avoiding harmful effects.
2Ease of operation
If more functions are added to improve convenience in use, then the ease of operation is improved, but the device complexity and weight increase
Solution Approach 1:
The patent merges the back support function with the position adjustment function into a single integrated mechanism. The buttock supporting unit is equipped with a sliding mechanism that automatically adjusts the user's position along the bed frame when the back inclination changes, combining multiple functions (back support + position maintenance) into one system. This reduces overall device complexity while improving convenience, avoiding the need for separate mechanisms for each function.
3Weight of moving object
If the electric bed is made foldable to reduce size and weight for transportation and storage, then the portability is improved, but the structural complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the bed into modular components that can be folded and collapsed. The bed frame is designed with hinged sections allowing it to be folded into a compact configuration for transportation and storage. The buttock supporting unit with its sliding mechanism is also designed to be disassembled or folded along with the frame. This segmentation reduces the overall size and weight while managing structural complexity through modular design.
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 alleviates abdominal pressure and maintains user access to bedhead items during back lifting, and facilitates cost reduction through compact folding and reduced weight, enhancing user convenience and lowering transportation and storage costs.
Implementation Method 1
The front link has two ends pivotally connected with the front frame and the back supporting unit, respectively. The first actuator has two ends disposed with the first buttock supporting unit and the back supporting unit respectively in a way that the first buttock supporting unit is driven by the back supporting unit to slide forwards when the back supporting unit is driven by the first actuator to swing upwardly.
Implementation Method 2
The rear frame comprises a front end pivotally connected with the front frame, such that the rear frame is swingable between an extended position and a folded position.
Implementation Method 3
The first buttock supporting unit comprises two slide portions slidably disposed with the two guide rails, respectively.
Data Source
AI summary
A foldable electric bed includes a front frame having two parallel guide rails, a rear frame pivotally connected with the front frame and swingable between extended and folded positions, a first buttock supporting unit slidably disposed with the guide rails, a back supporting unit pivotally connected with the first buttock supporting unit, a front link pivotally connected with the front frame and the back supporting unit, and a first actuator disposed with the first buttock and back supporting units, such that the first buttock supporting unit is driven by the back supporting unit to slide forwards when the back supporting unit is driven by the first actuator to swing upwardly. As a result, when the electric bed lifts the back of a user, the user may stay near to the head of the bed, facilitating access to items near the bed head and avoiding oppression of the user's abdomen.