Adjustable Bed Frame Support with Elastic Pin Locking Mechanism
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Solution Overview
Problem
Existing folding beds often require complex mechanisms for leg assembly folding and unfolding, and lack adjustable supports that can securely lock or unlock, making them unstable and difficult to use.
Innovation Solution
An adjustable support system comprising an outer tubular bar, an inner bar, and a locking/unlocking mechanism with a casing, locking pin, and elastic member, allowing for secure locking and easy unlocking of the leg assembly with respect to the frame top, enabling stable folding and unfolding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking/unlocking mechanism is added to the support, then the stability and safety of the bed frame is improved, but the device complexity increases
Solution Approach 1:
The locking pin is nested within the casing, and the elastic member is contained within the casing structure. The inner bar is disposed inside the outer tubular bar. This nesting arrangement consolidates multiple components into compact units, providing the locking function without proportionally increasing overall device complexity.
Solution Approach 2:
The elastic member automatically pushes the locking pin into the restriction slot to secure the support in position without requiring additional actuators or power sources. The mechanism self-locks through the elastic force, and self-unlocks when the casing is pressed, reducing the need for complex control systems.
2Adaptability or versatility
If the support structure is made adjustable with multiple positions, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The support is divided into an inner bar and an outer tubular bar, allowing the inner bar to slide to different positions within the outer bar. The restriction slots are segmented at different locations to provide discrete adjustable positions. This segmentation enables adjustability without requiring a completely reconfigurable structure.
Solution Approach 2:
The support transitions from a fixed structure to a dynamic adjustable structure where the inner bar can move to different positions. The locking/unlocking mechanism enables this dynamic adjustment while maintaining stability at each position, balancing adaptability with structural integrity.
3Ease of operation
If the locking mechanism uses an elastic member to automatically lock, then the ease of operation is improved, but the reliability may worsen due to potential elastic member failure
Solution Approach 1:
The casing acts as an intermediary between the user's manual input and the locking pin. When the user presses the second portion of the casing, this intermediate structure transmits the force to pull the locking pin out of the restriction slot. This mediator provides a controlled and reliable unlocking mechanism that is easier to operate than directly manipulating the locking pin.
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 adjustable support system provides a stable and safe folding bed frame by allowing the leg assembly to be locked in both unfolded and folded states, facilitating easy assembly and disassembly while maintaining structural integrity.
Implementation Method 1
The elastic member is coupled with the second portion of the casing, and has a first end abutting the second portion of the casing and a second end abutting the side wall of the outer tubular bar. When the second restriction slot of the inner bar aligns with the first restriction slot of the outer tubular bar, the elastic member pushes at least a portion of the locking pin into the second restriction slot of the inner bar
Implementation Method 2
The intermediate portion is pivotally connected with the outer tubular bar
Data Source
AI summary
Disclosed are adjustable supports and frames. An adjustable support includes an inner bar, an outer bar and a locking/unlocking mechanism for controlling the relative movement of the inner and outer bars. The locking/unlocking mechanism includes a casing pivotally connected with the outer bar, a pin coupled with the casing, and an elastic member to engage the pin with the inner and outer bars.