Chair Pivot Link Assembly for Quick Locking and Compact Storage
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Solution Overview
Problem
Conventional chair structures lack the ability to be easily assembled and disassembled, preventing them from being stored in a compact form when not in use due to the absence of a disassembly mechanism.
Innovation Solution
A chair structure comprising a seat frame with a first coupling element and a support base equipped with a pivot link assembly, including a pivot axle and a second coupling element with a latch, allowing the seat frame to be locked and unlocked for assembly and disassembly, enabling rotation and facilitating storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional pivoting mechanism is used to allow rotation of the seat portion, then the chair provides convenient usability, but the chair structure cannot be disassembled and stored in a compact form
Solution Approach 1:
The chair is divided into separable components: a support base and a seat frame that can be assembled and disassembled. The coupling element with latch mechanism enables the seat frame to be coupled to or separated from the support base, allowing the chair to transition between assembled and disassembled states while maintaining rotational functionality when assembled
Solution Approach 2:
The chair structure incorporates dynamic characteristics through the latch mechanism that can transition between locked and unlocked states. The coupling element allows the seat frame to be dynamically coupled to or decoupled from the support base, enabling the chair to adapt between being a functional assembled unit and separable storage components
2Ease of operation
If the chair structure is designed for easy assembly and disassembly, then storage convenience is improved, but the structural stability and locking reliability may be compromised
Solution Approach 1:
The latch mechanism is designed to automatically engage and lock the coupling elements when the seat frame is assembled with the support base. The spring-loaded latch automatically snaps into the recess to secure the connection, providing self-securing functionality that ensures reliable locking without requiring additional fastening operations
Solution Approach 2:
The coupling element integrates multiple functions: it provides the mechanical connection between seat frame and support base, incorporates the latch mechanism for automatic locking, and includes the recess for latch engagement. This merging of connection and locking functions into a single integrated component ensures both ease of assembly and reliable locking
Data Source
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AI summary
A chair structure (100) comprises a seat frame (104) having a first coupling element (117), a support base (102), and a pivot link assembly (106) mounted on the support base. The pivot link assembly (106) includes a pivot axle (122), and a second coupling element (124) pivotally mounted around the pivot axle (122). The second coupling element (124) includes a latch operable to lock the first coupling element (117) with the second coupling element (124) when the seat frame (104) is assembled with the support base (102), and unlock the first coupling element (117) from the second coupling element (124) for allowing separation of the seat frame (104) from the support base (102).