Chair Assembly Rocking Mechanism and Collapsible Design
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Solution Overview
Problem
Existing chair assemblies lack a design that allows for efficient rotation and support while also being collapsible for easy storage, which limits their versatility and comfort.
Innovation Solution
A chair assembly comprising a frame assembly with a base assembly, a joint assembly, and a seat assembly, where the joint assembly includes a deflection plate and mounting arms to facilitate rocking motion, and the seat assembly includes rotatable arm and back assemblies for enhanced support and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the chair assembly includes rotatable arm and back assemblies for enhanced support and comfort, then ergonomic support is improved, but device complexity increases
Solution Approach 1:
The chair is divided into separate functional modules: base assembly, joint assembly, seat assembly, arm assembly, and back assembly. Each module can independently rotate or adjust, allowing enhanced ergonomic support through multiple rotation points while keeping each individual component relatively simple in design.
Solution Approach 2:
The joint assembly serves multiple functions: it connects the seat to the base, enables rocking motion through the deflection plate, and allows rotation of the seat assembly. This multi-functionality reduces the need for separate mechanisms for each function, thereby managing complexity while providing versatile ergonomic adjustments.
2Ease of operation
If the chair assembly is made collapsible for easy storage, then ease of operation is improved, but reliability deteriorates
Solution Approach 1:
The chair transitions between two stable states: expanded (for use) and collapsed (for storage). The dynamic design allows the chair to be easily collapsed by rotating the seat assembly relative to the base assembly, yet maintains reliability when in either state through robust joint connections and the rockered deflection plate mechanism that ensures stable positioning.
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 chair assembly provides improved comfort and ergonomic support through its rocking mechanism and rotatable components, while also being collapsible for convenient storage, thus addressing the limitations of existing chair designs.
Implementation Method 1
The first deflection plate is coupled to the suspension arm and extends over the joint mount
Data Source
AI summary
A frame assembly for a chair assembly includes a base assembly, a joint assembly, and a seat assembly. The base assembly includes a first leg and a base mount. The base mount includes a mounting aperture and a first base coupler. The first base coupler is coupled to the first leg and facilitates rotation of the first leg. The joint assembly includes a joint mount, a mounting arm, and a first deflection plate. The joint mount includes a mounting post inserted within the mounting aperture. The mounting arm includes a support arm coupled to the joint mount and a suspension arm coupled to the support arm. The first deflection plate is coupled to the suspension arm and extends over the joint mount.