Flex-Back Banquet Chair Bracket Design for Durability and Comfort
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Solution Overview
Problem
Banquet chairs lack flexibility and durability, leading to discomfort during prolonged use, and existing solutions using L-shaped brackets face issues with material durability and flexibility.
Innovation Solution
A flex-back banquet chair design featuring a flex bracket made from sheet metal with a bend and three nerves, which provides increased flexibility and durability by allowing the backboard frame to recline in response to user force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If L-shaped aluminum brackets are used to connect the back of the banquet chair to the base, then durability is improved, but flexibility is reduced and the bracket may bend or break under increased flexing
Solution Approach 1:
The patent changes the physical parameters of the bracket by introducing longitudinal and transverse recesses into the aluminum material. These recesses create a flexible core that allows the bracket to bend and flex without breaking, while the outer aluminum layers maintain structural strength and durability.
Solution Approach 2:
The bracket functions as a composite structure combining rigid aluminum material with flexible recessed sections. The aluminum provides durability and strength, while the recessed portions create a flexible core that enables repeated bending and flexing without failure.
2Adaptability or versatility
If L-shaped brackets made from other materials such as steel are used, then flexibility is improved, but durability is reduced as they may not have enough give to enable desired flexing
Solution Approach 1:
The patent modifies the aluminum bracket by creating recesses that change its physical parameters, giving it the flexibility characteristics of softer materials while retaining the durability and strength of aluminum.
Solution Approach 2:
The bracket has non-uniform structure with rigid outer aluminum layers providing durability and flexible recessed sections providing give and adaptability. This local differentiation allows different parts of the same component to serve different functions.
3Stability of the object's composition
If banquet chairs are designed to be non-flexible, then structural integrity is maintained, but user comfort is reduced during prolonged sitting
Solution Approach 1:
The bracket's physical parameters are changed by adding recesses that enable controlled flexing. This allows the chair back to move and adapt to user movements, improving comfort while the aluminum material maintains overall structural integrity.
Solution Approach 2:
The bracket transitions from a static, rigid connection to a dynamic, flexible connection that can adapt to user movements. The recesses allow the bracket to bend and flex in response to user actions, providing comfort while maintaining structural stability.
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 flex-back banquet chair achieves improved durability and flexibility, allowing for comfortable reclining without compromising structural integrity, and can be stacked easily with rubber stoppers for convenience.
Implementation Method 1
The sheet metal may be bent at an angle. The flex bracket may include three nerves. Each nerve may include an indentation in the sheet metal. When the first mounting space is mounted to the back side of the backboard frame and the second mounting space is mounted to an underside of a base frame, the backboard frame together with the first mounting space may recline in response to a force applied to the backboard frame.
Data Source
AI summary
Apparatus, methods and systems for a flex-back banquet chair are provided. The chair may include a flex bracket. The flex bracket may include sheet metal that is bent at an angle. The flex bracket may include a first mounting space extending in a first direction and a second mounting space. The flex bracket may include three nerves, each nerve including an indentation in the sheet metal. Each nerve may extend from a bottom edge of the first mounting space in a direction that is orthogonal to the first direction. When the first mounting space is mounted to a back side of the chair and the second mounting space is mounted on the underside the chair, a backboard frame together with the first mounting space may recline, in response to a force applied to the backboard frame, about a junction of a base frame and the second mounting space.