Foldable bed
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Solution Overview
Problem
Current portable foldable beds and recliners for children are bulky and heavy, making them inconvenient to transport and store, as they often require large volumes and weights due to rigid frames and bases, and lack efficient folding mechanisms.
Innovation Solution
A foldable bed design featuring a frame that can be folded along multiple axes with tensioned wires automatically extending the legs, reducing deployment time and weight, and a recliner with removable slat supports that minimize size and weight by wrapping fabric around slats, allowing for compact storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If an unfoldable base is used to support the mattress and stiffen between legs, then the bed structure is stable and functional, but the weight of the bed increases significantly
Solution Approach 1:
The patent removes the traditional unfoldable base from the bed structure. Instead of using a rigid base to support the mattress and provide stiffness, the invention suspends the mattress directly from the frame using elastic elements, thereby eliminating the heavy base component and significantly reducing overall bed weight.
Solution Approach 2:
The patent replaces the rigid unfoldable base with flexible elastic elements (springs or elastic bands) that suspend the mattress. These flexible elements provide the necessary support and stiffness without the weight of a solid base, allowing the bed to maintain structural integrity while being much lighter.
2Stability of the object's composition
If a rigid frame structure is used to support the bed, then the bed is stable and functional, but the volume when folded increases, making it bulky
Solution Approach 1:
The patent divides the frame into multiple foldable rod sections connected by joints, allowing the frame to be segmented and collapsed. This segmentation enables the frame to maintain stability when unfolded while reducing to a compact size when folded, eliminating the bulkiness of traditional rigid frames.
Solution Approach 2:
The patent transforms the static rigid frame into a dynamic foldable structure with movable joints and articulations. This dynamic design allows the frame to adapt its configuration - maintaining structural stability during use while collapsing to minimal volume for storage and transport.
3Volume of moving object
If multiple joints and components are used to enable folding, then the bed can be folded and stored compactly, but the time required to fold and unfold the bed increases
Solution Approach 1:
The patent incorporates elastic elements that automatically propel the foldable rods into their unfolded position. When the user initiates unfolding, the stored elastic energy automatically drives the structure to extend and lock into place, eliminating the need for manual assembly of multiple joints and significantly reducing deployment time.
Solution Approach 2:
The elastic elements are pre-tensioned during manufacturing to store potential energy. This preliminary action ensures that when folding or unfolding is initiated, the structure automatically completes the motion without requiring continuous manual effort, thereby reducing the time and effort needed for deployment.
4Adaptability or versatility
If foldable rods with multiple joints are used, then the bed can be folded along multiple axes, but the device complexity increases
Solution Approach 1:
The patent uses standardized foldable rod assemblies with identical joint designs throughout the frame. Each rod assembly serves multiple functions - providing structural support, enabling folding along multiple axes, and incorporating elastic propulsion. This universal design reduces overall complexity by repeating a proven modular unit rather than designing unique mechanisms for each joint.
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 significantly reduces the volume and weight of the folded bed and recliner, enhancing portability and ease of use while maintaining functionality, allowing for quick setup and compact storage.
Implementation Method 1
the wire being tensioned when the rod is unfolded, the tension of the wire moving the legs to be positioned in the unfolded position
Data Source
AI summary
A foldable bed (50) comprising:a foldable frame (505) along at least one axis comprising a foldable rod (510),at least two legs (515), each leg being attached to the frame by a connection (520), said connection allowing for the positioning of said leg according to an unfolded position and a folded position andthe foldable rod being associated with each connection on either side of the folding axis,in which:each connection comprises an orifice (525) passing through said connection andeach leg has an attachment (530) to a flexible wire (535) connecting two legs and passing through the folding axis of the frame, the wire being tensioned when the rod is unfolded, the tension of the wire causing the positioning of the legs in the unfolded position.