Foldable Bed Frame Support Device with Single-Action Linkage Mechanism
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Solution Overview
Problem
Conventional foldable bed frames are structurally complex and require multiple folding steps, making them difficult to assemble and disassemble, which can lead to discarded furniture during transportation.
Innovation Solution
A supporting device for a foldable bed frame with a hinge structure and movable support member, allowing the frame to be folded or unfolded through one action, and enhanced stability with diagonal pull rods forming triangular support structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional foldable bed frames use multiple folding mechanisms, then the bed frame can be folded and unfolded, but the structure becomes complex and requires multiple folding steps
Solution Approach 1:
The patent combines multiple folding functions into a single integrated support device. The support device includes a support leg, a first link connected to the headboard, a second link connected to the footboard, and a third link connecting the first and second links. This unified structure allows the entire bed frame to be folded or unfolded through a single action, eliminating the need for separate folding mechanisms at different locations.
Solution Approach 2:
The support device performs multiple functions simultaneously: it supports the bed frame during use, enables folding operation, provides stability through the triangular linkage structure, and facilitates easy transport. By integrating these functions into a single device, the patent reduces overall structural complexity while maintaining foldability.
2Adaptability or versatility
If conventional foldable bed frames use multiple folding steps, then the bed frame can be folded, but the folding process becomes time-consuming and troublesome
Solution Approach 1:
The patent combines multiple folding functions into a single integrated support device. The support device includes a support leg, a first link connected to the headboard, a second link connected to the footboard, and a third link connecting the first and second links. This unified structure allows the entire bed frame to be folded or unfolded through a single action, eliminating the need for separate folding mechanisms at different locations.
Solution Approach 2:
The support device is pre-configured with the optimal linkage geometry and connection points on the headboard and footboard. This preliminary design ensures that when folding is initiated, the triangular linkage structure automatically guides the bed frame through the folding motion, reducing the time and effort required compared to manual multi-step folding processes.
3Ease of operation
If the bed frame is designed for easy folding, then the folding steps are reduced, but the stability of the unfolded bed frame may be compromised
Solution Approach 1:
The support device uses a dynamic linkage structure that adapts its configuration based on the bed frame state. When the bed is unfolded for use, the first link, second link, and third link form a stable triangular configuration that rigidly supports the bed frame. When folding is initiated, the same linkage dynamically transitions to a compact configuration. This dynamic behavior allows the structure to provide stability during use while enabling easy folding.
Solution Approach 2:
The support device is pre-configured with the optimal linkage geometry and connection points on the headboard and footboard. This preliminary design ensures that when folding is initiated, the triangular linkage structure automatically guides the bed frame through the folding motion, reducing the time and effort required compared to manual multi-step folding processes.
4Adaptability or versatility
If conventional bed frames are made disassemblable for transport, then transportation burden is reduced, but the beds are difficult to disassemble and assemble during transportation
Solution Approach 1:
The patent combines multiple folding functions into a single integrated support device. The support device includes a support leg, a first link connected to the headboard, a second link connected to the footboard, and a third link connecting the first and second links. This unified structure allows the entire bed frame to be folded or unfolded through a single action, eliminating the need for separate folding mechanisms at different locations.
Data Source
AI summary
A supporting device for a foldable bed frame includes a hinge at an upper end of an upper support member, a movable support member vertically movable on the upper support member, a bracket on the movable support member, and first and second diagonal pull rods, a first end of each pull rod pivotally attached to the bracket, and a second end of each pull rod pivotally attached to the first upper bed frame and to the second bed frame, respectively.