Bottom base for preventing chair fall down and chair comprising the same
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Solution Overview
Problem
Chairs with multimedia devices installed, such as speakers, are prone to falling down due to the biased center of gravity, posing a risk of damage and injury.
Innovation Solution
A bottom base with a central shaft, housing, and multiple support legs, including at least one longer support leg and a reinforcing frame, to stabilize the chair by evenly distributing load and preventing deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multimedia device such as a speaker is installed on the backrest part or headrest part, then the user can experience multi-channel sound, but the center of gravity of the chair becomes biased and the chair may fall down
Solution Approach 1:
The patent applies asymmetry by providing at least one support leg with a different extension length than the others. Specifically, when the center of gravity is biased toward a specific direction due to multimedia device installation, the support leg in that direction is extended longer to compensate for the gravitational imbalance, creating an asymmetric support structure that restores chair stability.
Solution Approach 2:
The extended support leg acts as a counterbalancing element that offsets the biased center of gravity caused by the multimedia device. By extending the support leg in the direction of the biased center of gravity, the structure creates a counteracting moment that prevents the chair from falling, effectively balancing the gravitational forces.
2Ease of manufacture
If support legs are formed radially from a central shaft, then the structure is simple and easy to manufacture, but it is difficult to prevent the chair from falling down when the center of gravity is excessively biased
Solution Approach 1:
The patent modifies the conventional symmetric radial support leg structure by making at least one support leg have a different extension length. This asymmetric modification maintains the radial arrangement from the central shaft for ease of manufacture, while the varying lengths provide the necessary stability compensation for biased center of gravity conditions.
3Stability of the object's composition
If at least one support leg has a longer extension length, then the chair stability is improved, but the support leg may be more vulnerable to deformation
Solution Approach 1:
The patent addresses the vulnerability of the extended support leg by adding a reinforcing frame that connects the support legs. This frame provides additional structural support in a different dimensional aspect, preventing the extended leg from deforming under load while maintaining the stability benefits of the asymmetric configuration.
Data Source
AI summary
The present invention relates to a bottom base for preventing a chair from falling down and a chair including the same, and more specifically, to a bottom base capable of preventing a chair from falling down when the center of gravity of the chair is biased in a specific direction, and a chair including the same.