Height-Adjustable Bed Side Rail Lever Mechanism
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Solution Overview
Problem
Existing height-adjustable side rail systems for bed frames, particularly in medical and nursing applications, are slow and cumbersome during emergency situations, hindering quick access to the bed surface or patient.
Innovation Solution
A height-adjustable side rail system with lever systems featuring articulated levers and adjustable frame elements, allowing for quick and easy transition between a locked and accessible position, ensuring patient safety and ease of access by nursing staff.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electric drives are used for height adjustment in side rail systems, then the system can maintain stable height positions, but the adjustment speed becomes too slow for emergency situations
Solution Approach 1:
The patent replaces electric drives with a purely mechanical lever system that uses mechanical advantage to achieve rapid height adjustment. The lever system with articulated levers and pivot points enables manual operation that is both fast and reliable, eliminating the slow response of electric motors while maintaining stable height positions through mechanical locking mechanisms.
Solution Approach 2:
The patent employs a dynamic lever system that can be quickly transitioned between different height positions. The articulated levers connected by pivot points create a mechanical linkage that responds immediately to manual input, allowing the side rail to move between locked and unlocked positions rapidly without the delay inherent in electric drive systems.
2Strength
If traditional side rail systems are used, then structural integrity is maintained, but access to the bed surface becomes difficult during emergencies
Solution Approach 1:
The patent creates a dynamic side rail system that can transition between a locked position maintaining structural integrity and an unlocked position providing easy access. The lever system with pivot points and articulated levers allows the rail to be quickly moved between these states, combining the strength of a fixed structure with the accessibility of a movable one.
Solution Approach 2:
The side rail system is divided into separable components through the lever mechanism, allowing the rail to be segmented into locked and unlocked portions. This segmentation enables the structure to maintain integrity when locked while allowing easy access when unlocked, resolving the contradiction between strength and ease of operation.
Data Source
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AI summary
The invention relates to a bed frame with a head unit, a foot unit, and a lying surface arranged between the head unit and the foot unit, as well as a height-adjustable side rail system for a bed frame, comprising a first frame element with two first adjustment elements adjustable in the longitudinal direction of the first frame element and spaced apart from each other, and a second frame element arranged at a distance from the first frame element with two second adjustment elements adjustable in the longitudinal direction of the second frame element and spaced apart from each other. To provide a bed frame with a quickly and easily accessible lying surface and a height-adjustable side rail system for a bed frame that enables simple and quick height adjustment, the lever systems of the height-adjustable side rail system each have a first and a second pivot lever.wherein the first articulated lever is articulated via a first connecting section to the first adjusting element and via a first coupling section to the second frame element, and wherein the second articulated lever is articulated via a second connecting section to the second adjusting element and via a second coupling section to the first frame element, such that an adjustment of the adjusting elements of the frame elements relative to each other causes a distance-changing adjustment of the second frame element relative to the first frame element between a locking position and an access position.