Foldable Bed Frame with Locking Adjustable Supports for Easy Folding
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Solution Overview
Problem
Existing foldable bed frames are inconvenient to use due to the difficulty in unlocking supports and require separate detachment of bedding supports, making them time-consuming to fold and unfold.
Innovation Solution
The implementation of adjustable supports with a locking and unlocking mechanism, comprising an inner and outer tubular bar and a sleeve fitting, pin, and elastic member, allows for easy locking and unlocking of the supports, enabling the bed frame to fold and unfold with integrated bedding support assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If push buttons are used to unlock the telescopically coupled bars in existing foldable bed frames, then the bed frame can be folded, but the buttons require very hard pushing to unlock, making the bed frame inconvenient to use
Solution Approach 1:
The elastic member (spring) automatically pushes the pin into the restriction holes to lock the bars, and the pulling means allows easy unlocking by simply pulling outward. The system serves itself by using elastic force to maintain the locked position without requiring continuous user input or hard pushing to unlock.
Solution Approach 2:
The pin acts as an intermediary between the elastic member and the restriction holes. Instead of directly pushing buttons against locked bars, the pin is pushed by the elastic member into the aligned restriction holes to achieve locking, and pulling the pin outward achieves unlocking, significantly reducing the force required.
2Ease of operation
If bedding supports are attached separately to the bed frames after unfolding, then they can support bedding, but they cannot be folded or unfolded along with the bed frame components, requiring detachment and removal which is inconvenient and time consuming
Solution Approach 1:
The bedding support assemblies are merged with the leg assemblies through the adjustable supports. The bedding supports are now part of the integrated foldable structure, allowing them to move together with the bed frame components during folding and unfolding operations, eliminating the need for separate detachment.
Solution Approach 2:
The bedding support assemblies are designed to be dynamically connected to the leg assemblies through the adjustable supports with locking mechanisms. This allows the bedding supports to transition between fixed and movable states, enabling them to fold and unfold along with the bed frame while maintaining stability when locked in position.
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 solution enhances the stability and convenience of foldable bed frames by allowing easy folding and unfolding while maintaining the stability of the bed frame when in use, with the bedding support assemblies keeping bed cloths straight and tight.
Implementation Method 1
The elastic member is sleeved on the second segment of the pin, and has a first end abutting the protrusion of the pin and a second end abutting the cover. When the first and second restriction holes of the inner and outer tubular bars are aligned with each other, the elastic member pushes the first end of the pin into the first and second restriction holes of the inner and outer tubular bars
Data Source
AI summary
Disclosed are adjustable supports, bedding support assemblies, and foldable bed frames having adjustable supports, bedding support assemblies or both. A foldable bed frame includes first and second sub-frames, first and second leg assemblies, and a plurality of adjustable supports. First and second sub-frames are pivotally connected with each other at their proximal sides. First and second leg assemblies are pivotally connected with the first and second sub-frames, respectively. Each adjustable support has one end connected to a sub-frame, and the other end connected to a leg assembly. An adjustable support includes movably coupled inner and outer bars, and a locking and unlocking mechanism to selectively restrict the inner and outer tubular bars from moving with respect to each other and thus selectively restrict the leg assembly from rotating with respect to the sub-frame.