Movable Chair Seat Covering for Concealed Swing Gaps
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Solution Overview
Problem
Conventional chairs with tiltable seats in multiple directions face issues with high degree of freedom of deformation, making it difficult for users to maintain posture as the seat moves independently, and there is a need to hide the space between swinging surfaces to prevent foreign body intrusion and maintain design appearance.
Innovation Solution
A chair design featuring swinging surfaces with an elastic member and a stretchable sheet material between the outer peripheral edges to conceal the gap, ensuring the elastic member prevents foreign bodies and maintains the sheet's appearance by preventing wrinkles and protrusion, while allowing the cover member to deform and follow the movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a wide range including the swinging surfaces is covered by a cover, then the appearance is improved and foreign bodies are prevented, but the movement of the swinging surfaces is hindered
Solution Approach 1:
The patent uses a stretchable sheet material as a flexible film to cover the gap between swinging surfaces. This thin film prevents foreign body intrusion while allowing the swinging surfaces to move freely, resolving the contradiction between protection and mobility.
Solution Approach 2:
The cover member is designed to deform dynamically following the movement of the gap between swinging surfaces. This dynamic adaptation allows the cover to maintain coverage during motion without restricting the range of movement.
2Shape
If the stretchable sheet material is made tight to prevent wrinkles, then the appearance is improved, but the movement of the swinging surfaces is restricted
Solution Approach 1:
The patent optimizes the elasticity parameter of the stretchable sheet material to balance appearance and movement. The material has sufficient elasticity to accommodate gap variations during swinging motion while maintaining a wrinkle-free appearance through controlled tension.
3Object-affected harmful factors
If the elastic member is arranged between the swinging surfaces, then foreign body intrusion is prevented, but the gap between surfaces must be concealed
Solution Approach 1:
The stretchable sheet material acts as a flexible film that conceals the gap containing the elastic member. This maintains the aesthetic appearance while preserving the protective function of the elastic member against foreign body intrusion.
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 solution effectively hides the space between swinging surfaces, prevents foreign body intrusion, maintains the appearance of the chair, and allows for smooth operation without hindering the movement of the swinging surfaces, enhancing user comfort and chair stability.
Implementation Method 1
an elastic member is arranged between the swinging surfaces at least in a vicinity of outer peripheral edges of the swinging surfaces
Implementation Method 2
a stretchable sheet material is provided between the outer peripheral edges to conceal a gap between the swinging surfaces facing each other
Data Source
AI summary
In the chair, a space between swinging surfaces facing each other can be appropriately unseen. The chair includes swinging surfaces (rolling surfaces) (312a) and (322a) facing each other and has a configuration in which the swinging surfaces (312a) and (322a) swings with respect to each other in directions of 360 degrees including front-rear and left-right directions. In such a chair, an elastic member (33) is arranged to be positioned between the swinging surfaces (312a) and (322a) at least in the vicinity of outer peripheral edges (312z) and (322z), and a stretchable sheet material (60) is provided between the outer peripheral edges (312z) and (322z) to conceal a gap between the swinging surfaces (312a) and (322a) facing each other, the gap including the elastic member (33).