Four-Fold Electric Bed Nesting Design to Reduce Storage Volume
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Solution Overview
Problem
Existing folding beds, such as the double-motor folding bed, can only achieve two-layer folding, resulting in a large volume after folding that occupies significant storage space.
Innovation Solution
A four-fold electric bed design featuring a rear and front supporting frame with hinge connections and linear actuators for rotating bed components, allowing for a four-layer folding mechanism that reduces storage volume and includes a splayed and staggered supporting frame arrangement to enhance stability and prevent structural interference during folding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a two-layer folding mechanism is used, then the bed structure is simpler, but the storage volume remains large and occupies significant space
Solution Approach 1:
The patent implements a four-layer folding mechanism where bed components are nested within each other during folding. The headboard folds onto the backrest, the backrest folds onto the hip section, and the footboard folds onto the leg section, creating a compact nested configuration that significantly reduces storage volume compared to traditional two-layer folding
Solution Approach 2:
The bed is divided into multiple independently foldable sections (headboard, backrest, hip section, leg section, footboard) connected by hinge members. This segmentation allows each section to fold independently and nest within adjacent sections, enabling the four-layer folding configuration that minimizes storage volume
2Stability of the object's composition
If the supporting frames are arranged in a splayed and staggered configuration, then stability and anti-tilting ability are enhanced, but the device structure becomes more complex
Solution Approach 1:
The supporting frames are arranged in a splayed and staggered asymmetric configuration rather than a symmetric straight alignment. This asymmetric arrangement increases the horizontal span and lowers the center of gravity, providing enhanced anti-tilting stability while the staggered positioning prevents structural interference during the folding operation
3Manufacturing precision
If linear actuators are used for precise angle adjustment, then positioning accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent replaces traditional mechanical linkage systems with linear actuators for driving the folding sections. The linear actuators provide precise angle adjustment through direct linear motion conversion to rotational movement at the hinge joints, eliminating the need for complex mechanical linkages while achieving accurate positioning
Solution Approach 2:
The linear actuators enable independent control and adjustment of folding angles for each bed section. By changing the linear displacement parameter of each actuator, precise angular positioning of individual sections can be achieved, allowing optimization of both compactness during storage and comfort during use
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 four-fold design significantly reduces storage volume, enhances stability and anti-tilting ability, and facilitates smooth folding with precise angle adjustments, while saving space and improving handling convenience.
Implementation Method 1
A first driving member for driving the backrest bed plate to rotate upwards is arranged at a bottom of the rear hip bed plate. The first driving member includes a first linear actuator.
Implementation Method 2
A second driving member for driving the leg bed plate to rotate upwards is arranged at a bottom of the front hip bed plate. The second driving member includes a second linear actuator.
Implementation Method 3
Upper ends of the first push rods are rotatably connected with first rollers. The first rollers are in rolling contact with a bottom of the backrest bed plate. Upper ends of the second push rods are rotatably connected with second rollers. The second rollers are in rolling contact with a bottom of the leg bed plate.
Data Source
AI summary
A four-fold electric bed is provided, and belongs to the technical field of folding beds. The four-fold electric bed includes a rear supporting frame, a front supporting frame, a front hip bed plate, a rear hip bed plate, a leg bed plate, a footboard, a backrest bed plate, a headboard, a first driving member, and a second driving member. The front hip bed plate and the leg bed plate form a first folding unit, and the rear hip bed plate and the backrest bed plate form a second folding unit. The second folding unit can be folded to a bottom of the first folding unit. The headboard can be folded to a top of the backrest bed plate. The footboard can be folded to a bottom of the leg bed plate.