Retractable Rod Connecting Device for Synchronized Folding Furniture
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Solution Overview
Problem
Existing connecting devices for folding tables and chairs are complex, making installation and unfolding operations inconvenient and preventing synchronous movement of foldable components.
Innovation Solution
A connecting device with retractable rods, comprising a case, first and second connecting members, and rotary tabs, which allows for simple installation and operation by using a spring-loaded mechanism for synchronized movement of the rods, enabling easy folding and unfolding of the table or chair.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If complex connecting devices are used for folding tables and chairs, then the structural strength is improved, but the device complexity increases and ease of operation deteriorates
Solution Approach 1:
The connecting device is divided into multiple independent components: upper housing, lower housing, first connecting members, second connecting members, rotary tabs, and springs. Each component has a specific function and can be assembled separately, reducing overall device complexity while maintaining structural strength.
Solution Approach 2:
The device incorporates movable rotary tabs that can rotate between locked and unlocked positions, and springs that dynamically adjust to maintain connection force. This dynamic design allows the structure to adapt during folding and unfolding operations without requiring complex fixed mechanisms.
2Strength
If complex connecting devices are used for folding tables and chairs, then the structural strength is improved, but the ease of operation deteriorates
Solution Approach 1:
The springs automatically engage and disengage the connecting members during folding and unfolding operations without requiring manual intervention. The rotary tabs self-lock into position when the foldable components are folded or unfolded, making the operation simple and intuitive while maintaining strong connections.
Solution Approach 2:
The rotary tabs act as intermediaries between the connecting members and the foldable components, translating the movement of one into the locking or unlocking of the other. This intermediary mechanism simplifies user interaction while ensuring reliable structural connection.
3Stability of the object's composition
If conventional connecting devices are used, then the structural connection is achieved, but the synchronous movement of foldable components cannot be realized
Solution Approach 1:
Multiple connecting members and rotary tabs are combined within a single integrated case structure. The upper and lower housings are merged to form a unified connecting assembly that coordinates the movement of multiple foldable components simultaneously, achieving synchronous movement while maintaining stable structural connection.
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 device provides a simple structure for convenient installation and operation, ensuring synchronous movement of foldable components, thus enhancing usability and reducing complexity.
Implementation Method 1
A spring 8 is arranged within the case 1 and arranged around the second connecting member 6
Data Source
AI summary
A connecting device includes a case (1), a first rod (2), a second rod (3), and a third rod (4) that are connected to the case (1). Two first connecting members (5) connect the second rod (3) and the third rod (4) to the case (1). A second connecting member (6) connects the first rod (2) to the case (1). The case (1) includes an upper housing (101) and a lower housing (102) that define a first receiving hole (10), a second receiving hole (11), and a third receiving hole (9), the second connecting member (6) and the two first connecting members (5) are received in the first receiving hole (10), the second receiving hole (11), and the third receiving hole (9), respectively.