Semi-Recumbent Nursing Bed Leveling for Synchronized Lateral Tilting
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Solution Overview
Problem
Existing nursing beds with lateral tilting functions have limited angles and require separate power sources for back and leg portions, leading to uneven surfaces due to manufacturing differences and error accumulation, increasing the workload of healthcare staff.
Innovation Solution
A semi-recumbent position adjustable nursing bed with a large lateral tilting angle, featuring a leveling adjuster between the bed frame and leg side-tilt, allowing the leg side-tilt to move horizontally, ensuring the back and leg portions maintain the same gradient during tilting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two power sources are arranged for lateral tilting of back and leg portions respectively, then lateral tilting function is achieved, but the back portion and leg portion become uneven due to error accumulation
Solution Approach 1:
The patent merges the lateral tilting control of the back portion and leg portion into a single synchronized control system. Instead of using two independent power sources that accumulate errors, one power source drives both portions through a mechanical linkage system, ensuring they tilt by the same angle and remain even, thus resolving the surface evenness issue while maintaining the lateral tilting function.
2Adaptability or versatility
If back board and hip board are separated for lateral tilting, then lateral tilting capability is improved, but device complexity increases due to multiple power sources
Solution Approach 1:
The patent makes a single power source universal by designing it to drive both the back portion and leg portion lateral tilting simultaneously. The power source is coupled with a transmission mechanism that distributes motion to both sections, reducing the number of power sources from two to one while maintaining full lateral tilting capability for both back and leg portions.
3Ease of operation
If separate lateral tilting mechanisms are used for back and leg portions, then independent adjustment is achieved, but workload of healthcare staff increases
Solution Approach 1:
The patent combines the control of back and leg portion lateral tilting into a single synchronized operation. By using one power source and a unified control mechanism, the system tilts both portions simultaneously with one operation, eliminating the need for separate adjustments and thereby reducing the workload of healthcare staff while maintaining independent adjustability through centralized control.
Data Source
AI summary
Disclosed is a semi-recumbent position adjustable nursing bed with a large lateral tilting angle, including a bed frame, a back support and a leg support, the back support and the leg support being arranged on the bed frame, a back side-tilt for lateral tilting of the back support being arranged on the bed frame, and a leg side-tilt for lateral tilting of the leg support being further arranged on the bed frame, and further including a leveling adjuster arranged between the bed frame and the leg side-tilt, which enables the leg side-tilt to move in a horizontal direction relative to the bed frame.