Chair and method of making the chair
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Solution Overview
Problem
Current chair designs lack flexibility in back positioning and attachment options, which hinders manufacturing efficiency, increases costs, and limits aesthetic design possibilities.
Innovation Solution
A chair design featuring a base frame with intermediate chair back attachment mechanisms, including ovoid or polygonal-shaped attachment bodies with specific fastener holes, allowing for improved positioning and attachment of the chair back, reducing the number of attachment points while maintaining structural integrity and aesthetic flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If chair back is attached to frame at multiple different locations to support back skin in desired position, then chair back positioning flexibility is improved, but manufacturing complexity and time increase
Solution Approach 1:
The intermediate chair back attachment body serves multiple functions: it provides multiple attachment points for positioning the chair back, acts as a structural connector between the chair back and frame, and enables various attachment configurations through its multiple fastener holes. This multi-functional design achieves positioning flexibility without proportionally increasing complexity.
Solution Approach 2:
The intermediate chair back attachment body is nested within the overall chair structure, connecting the chair back to the frame. This nesting approach allows the attachment mechanism to be integrated into the existing structure rather than adding separate external components, reducing overall system complexity while maintaining positioning options.
2Adaptability or versatility
If chair back is attached to frame at multiple different locations to support back skin in desired position, then chair back positioning flexibility is improved, but manufacturing time and cost increase
Solution Approach 1:
The intermediate chair back attachment body is pre-configured with multiple fastener holes at predetermined locations during manufacturing. This preliminary preparation allows for quick selection and attachment of the chair back at the desired position without requiring complex on-site measurements or modifications, thereby maintaining manufacturing efficiency.
Solution Approach 2:
The standardized intermediate attachment body can be used across different chair configurations and positions, allowing manufacturers to use the same component for multiple purposes. This universality reduces the variety of parts needed and simplifies the manufacturing process while still providing positioning flexibility.
3Adaptability or versatility
If intermediate chair back attachment body with multiple fastener holes is used, then aesthetic design options are improved, but number of components and assembly complexity increase
Solution Approach 1:
The intermediate chair back attachment body combines multiple attachment functions into a single integrated component. Rather than using separate brackets, supports, and fasteners at each location, all attachment capabilities are merged into one piece that connects the chair back to the frame, reducing the total number of components.
Solution Approach 2:
This single intermediate attachment body performs multiple functions: structural support, positioning, and aesthetic configuration. By making this component universal and multi-functional, the design achieves aesthetic flexibility without requiring multiple specialized parts for each function.
Data Source
AI summary
A chair can include a base having at least one chair back attachment mechanisms that attach a back of the chair to the base of the chair. The chair back attachment mechanisms can be positioned on an upper portion of the frame of the base of the chair to support the chair back. In some embodiments, there may be a single chair back attachment mechanism or only a pair of chair back attachment mechanisms to attach the chair back to the base. The chair back can be positioned via the chair back attachment mechanisms so that there is a gap between the lower portion of the chair back and the seat. Embodiments of the chair can be armless. Other embodiments can include arms positioned above the seat on opposite sides of the seat to support arms of a user sitting on the seat of the chair.