Office Chair Armrest Mounting Structure for Easy Assembly
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Solution Overview
Problem
Existing office chairs are often expensive and difficult to assemble, with complex mechanisms for attaching armrests, and lack user-friendliness and comfort.
Innovation Solution
A chair design featuring a seat part with integrated upholstery and an armrest support receptacle, allowing easy attachment and removal of armrests through a simple assembly process using a threaded fastening system, which is cost-effective and enhances user comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If armrests are attached to the seat mechanism in chairs without upholstery plate, then the chair structure is simplified, but the assembly becomes complex and difficult
Solution Approach 1:
The chair is divided into modular components: seat part with upholstery, armrest support, and armrests. The armrest support acts as an intermediate module that simplifies assembly by providing a dedicated mounting interface between the seat and armrests, eliminating the need to attach armrests directly to the complex seat mechanism.
Solution Approach 2:
The armrest support serves as an intermediary component between the seat part and the armrests. It simplifies the overall assembly by providing a straightforward mounting interface, avoiding direct attachment to the complex seat mechanism while ensuring stable armrest support.
2Ease of manufacture
If traditional armrest attachment methods are used, then the chair structure is stable, but the manufacturing cost increases
Solution Approach 1:
The armrest support is designed as a separate, standardized component that can be manufactured independently and assembled into the chair. This modular approach reduces manufacturing complexity and cost while maintaining structural integrity through dedicated attachment interfaces.
Solution Approach 2:
The armrest support uses simple, easily replaceable fastening components (screws, fasteners) that are inexpensive to manufacture. If needed, individual armrest supports can be replaced without affecting the entire chair structure, reducing overall manufacturing and maintenance costs.
3Adaptability or versatility
If armrests are permanently fixed in traditional chairs, then the structure is stable, but the chair lacks adaptability and user-friendliness
Solution Approach 1:
The armrest support uses reversible fastening mechanisms (screws, clips) that allow the armrests to be easily attached and detached. This dynamic design enables users to adjust or remove armrests as needed, enhancing adaptability and user-friendliness while maintaining stable attachment when armrests are installed.
Solution Approach 2:
The armrest support design with standardized fastening interfaces allows the same structure to accommodate different armrest configurations or be used with various chair types, enhancing versatility and adaptability while maintaining ease of assembly and disassembly.
4Productivity
If complex seat mechanisms are used to attach armrests, then the chair provides functionality, but the assembly process becomes time-consuming
Solution Approach 1:
By separating the armrest support from the seat mechanism and designing it as an independent modular component, the assembly process is simplified. The armrest support can be pre-assembled and then quickly installed into the seat part, significantly reducing overall assembly time compared to integrating armrest attachment directly into the complex seat mechanism.
Data Source
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AI summary
Chair, in particular an office chair, with a chair frame (1) and with a seat part (10) which is connected to the chair frame (1) and has a base body (11), seat padding (12) arranged on the base body (11) , and at least one armrest support receptacle (20) for receiving at least one armrest support (22) for supporting at least one armrest (13).