Self-Assembly Chair Structure With Ventilated Contour Seat
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Solution Overview
Problem
Conventional self-assembly chairs require separate fixing tools for assembly, are not hygienic due to lack of ventilation, and can cause discomfort and pain due to hard surfaces and poor fit with the user's body shape.
Innovation Solution
A self-assembly chair design featuring air holes in the seat and backrest members, a depressed surface matching the buttocks shape, and a forced fitting structure without separate fixing means, along with inclined leg members for stability and a sitting cushion with corresponding air holes for comfort and hygiene.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate fixing means are used for assembly, then the chair can be assembled, but the assembly becomes difficult when fixing means are lost and requires separate fixing tools
Solution Approach 1:
The chair components perform self-assembly through forced fitting structures where the seat member, backrest member, and leg members interlock without requiring separate fixing tools or means. The structural design enables the components to assemble themselves through their geometric compatibility and forced insertion mechanisms.
2Device complexity
If the seat plate and backrest are sealed, then the structure is simple, but bodily secretions pollute the seat plate due to non-ventilation
Solution Approach 1:
The seat member and backrest member are designed with multiple air holes distributed throughout their surfaces, creating a porous structure that allows air circulation and ventilation. This enables secretions to evaporate and prevents pollution while maintaining structural integrity and simplicity.
3Strength
If the seat plate and backrest are hard, then the structural strength is sufficient, but the user feels discomfort and pain when sitting for long time
Solution Approach 1:
The seat member and backrest member feature depressed surfaces with localized recesses that correspond to the user's body contours, particularly at contact points like the buttocks and back. This creates variable local geometry that distributes pressure and improves comfort while maintaining overall structural strength through the forced fitting framework.
4Adaptability or versatility
If the backrest is mounted parallel with leg extension direction for foldability, then the chair can be folded, but it becomes difficult to mount armrest
Solution Approach 1:
The armrest members are mounted in a direction perpendicular to the leg extension direction, utilizing a different spatial dimension. This allows the armrests to be attached to the leg members without interfering with the parallel mounting of the backrest, enabling both foldability and armrest installation.
Data Source
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AI summary
The present invention relates to a self-assembly chair, and more specifically, to a simple self-assembly chair for health, in which: the invention is mechanically connected without a separate fixing means such that anyone can simply assemble the invention; and air holes are formed on a seat member and a backrest member, which are in contact with the body, so that the generation of secretions such as sweat and the like is suppressed, and at the same time, if the seat is made of a hard material, the invention alleviates a drawback of hipbones bumping into a surface of the seat when sitting on the chair. The present invention provides a self-assembly chair comprising: at least two pairs of leg members which are formed such that trenches are formed in parallel with each other at a coaxial part; at least two horizontal members which are inserted into the trenches formed on each pair of said leg members, and in which protrusions are formed upwardly; a seat member having openings through which the protrusions of said horizontal members are penetrated; armrest members which have concave grooves into which upper ends of said leg members are inserted on the upper part of said leg members, and have one end on which horizontal grooves are formed; and a backrest member in which protrusions inserted into the horizontal grooves of said armrest members are protruded therefrom.