Reception Chair Seat Coupling Structure for Frame Stability
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Solution Overview
Problem
Conventional reception chairs suffer from poor structural strength and stability due to inadequate coupling between the seat and frame sections, leading to potential collapse, especially when used outdoors.
Innovation Solution
The reception chair design incorporates a frame assembly with collars on the seat to secure the front legs and fixing sections on the rear legs, forming an enclosing coupling connection that enhances structural stiffness and strength by using collars and fixing sections to create a bracing effect between the seat and frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the seat section is mounted to the support by fastening elements only, then the chair can be assembled, but the structural strength and stability are poor
Solution Approach 1:
The patent combines multiple connection methods: the seat section is both mounted to the support by fastening elements and coupled to the front legs through collars. This merging of connection approaches creates a composite structure that achieves both ease of assembly and high structural strength, resolving the contradiction between simple assembly and strong structure.
Solution Approach 2:
The connection system is divided into multiple independent connection points: fastening elements connecting the seat to the support, and collars connecting the seat to the front legs. This segmentation distributes structural loads across multiple points, enhancing overall strength while maintaining assembly simplicity through modular connection components.
2Device complexity
If the front legs and rear legs are coupled through only the support, then the frame can be assembled, but the overall structural strength is weak and may collapse
Solution Approach 1:
The patent adds a new dimensional connection between the seat and front legs through collars, creating a three-dimensional bracing structure. This additional spatial dimension of connection transforms the frame from a simple supported structure to a braced structure, significantly improving reliability without excessive complexity.
Solution Approach 2:
The collars act as intermediary components that mediate the connection between the seat and front legs. These collars provide a dedicated coupling mechanism that reinforces the frame structure, allowing the seat to serve dual purposes as both a functional element and a structural bracing element.
3Strength
If the seat is kept at a distance from the support, then the seat serves as an additional bracing member, but the coupling between seat and frame must be more complex
Solution Approach 1:
The seat is designed to perform multiple functions: it serves as both the functional seating surface and as a structural bracing member through the collar connections. This multi-functionality allows the seat to contribute to structural stiffness without adding separate bracing components, thereby improving strength without proportionally increasing complexity.
Data Source
AI summary
A reception chair includes a frame assembly, a seat, and a back coupled together. The frame assembly includes front legs, rear legs, and a support coupled to the front and rear legs. The seat is provided, on a front portion of a bottom surface thereof, with collars, which are arranged to respectively correspond to the front legs of the frame assembly so that upper ends of the front legs are insertable and fit into the collars. The seat is provided, on a rear portion of the bottom surface thereof, with fixing sections, such that the fixing sections and the rear legs of the frame assembly correspond to each other, respectively. The fixing sections each include a first mounting member and a second mounting member, such that the fixing sections of the seat and the rear legs collectively form enclosing coupling connection structures therebetween.