Multi-directional Adjustable Chair Bed with Electric Telescopic Rods
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Solution Overview
Problem
Existing nursing beds for the elderly have limited functionality, making it inconvenient for physically impaired individuals to get in and out, as they require manual support, lacking effective assistance for changing postures and standing up.
Innovation Solution
A multi-directional adjustable chair bed with a bedstead and bed plate group, utilizing electric telescopic rods and hip connection members to enable sliding and upwarping movements, providing a stand-up assisting function by coordinating the bed plate group's movement and inclination adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a simple nursing bed structure is used, then the device complexity is reduced, but the stand-up assisting function and posture adjustment capability are insufficient
Solution Approach 1:
The bed plate group is divided into multiple independent sections (backrest plate, seat plate, leg rest plate) that can move and adjust independently. Each section is equipped with its own electric telescopic rod, allowing segmented control of different body parts during the stand-up process, thereby providing assisted standing functionality without requiring a completely complex new structure
Solution Approach 2:
The electric telescopic rods serve multiple functions: they can extend to push the bed plate group for standing assistance, retract to allow bed plate movement along the rail, and adjust inclination angles of different plates. This multi-functionality reduces the need for separate mechanisms, balancing the added functionality with controlled complexity
2Adaptability or versatility
If the bed plate group is fixed on the bedstead, then the structural stability is improved, but the multi-directional movement and posture adjustment capability are limited
Solution Approach 1:
The bed plate group transitions from a fixed state to a dynamic state by introducing sliding fit with the bedstead through a rail. The plates can move along the rail while maintaining connection, allowing dynamic adjustment of positions and angles while the rail provides guiding and stabilizing constraints during movement
Solution Approach 2:
The rail acts as an intermediary between the bedstead and the bed plate group. It provides a guided path for movement, maintains structural connection, and enables both stability (through constrained motion) and adaptability (through allowed movement directions) simultaneously
3Ease of operation
If manual support is required for getting in and out of bed, then the device complexity is reduced, but the ease of operation for physically impaired elderly is worsened
Solution Approach 1:
The bed system provides self-service assistance through automated electric telescopic rods that actively push and position the bed plate group during stand-up and sitting operations. The mechanism automatically adjusts plate inclinations and positions without requiring manual effort from the user, making the bed serve itself to assist the user
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
Enhances the elderly's ability to get in and out of bed with reduced manual assistance, offering improved posture adjustment and stand-up support, making the process more convenient and comfortable.
Implementation Method 1
a first electric telescopic rod, a fixed end of which is mounted on the bedstead and an extending end of which is telescopic in a lengthwise direction of the bedstead
Implementation Method 2
a hip connection member rotatably arranged on a hip bed plate of the bed plate group and hinged to the extending end of the first electric telescopic rod
Implementation Method 3
the bed plate group being capable of moving between a bed head and a bed tail of the bedstead by means of sliding fit between a framework of the bed plate board and the bedstead
Data Source
AI summary
The present disclosure discloses a multi-directional adjustable chair bed, including a bedstead and a bed plate group, the bed plate group being capable of moving between a bed head and a bed tail of the bedstead by means of sliding fit between a framework of the bed plate board and the bedstead; a first electric telescopic rod, a fixed end of which is mounted on the bedstead and an extending end of which is telescopic in a lengthwise direction of the bedstead, an extending stroke of the extending end including a first stroke and a second stroke; and a hip connection member rotatably arranged on a hip bed plate of the bed plate group and hinged to the extending end of the first electric telescopic rod.