Folding table and stool set
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Solution Overview
Problem
Existing foldable table benches face issues with stability during use and complex slider mechanisms that lead to jamming and inconvenient folding, especially with long bench boards, where synchronized operation of slider mechanisms is required for smooth unfolding and folding.
Innovation Solution
A foldable table bench design featuring link rod mechanisms with swing and connecting arms that allow the bench board to be easily rotated into a vertical position for folding, using a simple structure where the swing arm and connecting arm are rotatably connected, enabling single-person operation and straightforward folding and unfolding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If slider mechanisms are used to connect the bench board and frame, then the bench board can be folded, but the structure becomes complicated and the slider mechanisms are prone to jamming
Solution Approach 1:
The patent extracts the complex slider mechanism from the system and replaces it with a simplified link rod mechanism consisting of only a connecting rod and support rod. This removes the problematic sliding components while retaining the essential folding functionality through rotational joints instead.
Solution Approach 2:
Instead of using sliding motion (linear movement) as in the prior art slider mechanisms, the patent inverts the approach by using rotational motion through hinged joints. The connecting rod rotates relative to the support rod, achieving the same folding effect but with simpler, more reliable mechanics that are less prone to jamming.
2Adaptability or versatility
If slider mechanisms are used on both sides of the bench board, then the bench board can be folded, but synchronized operation is required which is inconvenient for long bench boards
Solution Approach 1:
The patent merges the operation of both sides of the bench board into a single rotational action. By using link rod mechanisms on both sides that are structurally identical and connected to the same bench board, the user only needs to perform one folding action at one location, and the symmetry of the design causes both sides to fold simultaneously, eliminating the need for synchronized two-handed operation.
3Stability of the object's composition
If the rotation axes on both sides of the bench board are not in a straight line during unfolding, then the bench board cannot be turned over, but the structure becomes more complex to ensure stability
Solution Approach 1:
The patent deliberately introduces asymmetry in the form of a deliberate offset between the rotation axes of the link rod mechanisms on either side of the bench board. This asymmetric design, with the rotation axes not being collinear, actually enables the bench board to be turned over during folding while maintaining stability through the geometric constraints of the link rod mechanism itself, rather than requiring additional stabilizing structures.
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 design ensures smooth and easy operation, allowing one person to fold and unfold the bench board, even with long lengths, by forming rotation relationships between the swing arm, connecting arm, and bench board, simplifying the structure and enhancing user convenience.
Implementation Method 1
the swing arm and connecting arm are rotatably connected together
Implementation Method 2
the connecting arm and the bench board rotate toward the supporting rods
Implementation Method 3
the swing arms and the connecting arms rotate toward an inner side of the bench board and abut the bottom portion of the bench board
Data Source
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AI summary
A folding table and stool set, comprising a framework (10), table boards (20) located on one side of the framework (10), and stool boards (30) located on one side of the framework (10). The framework (10) comprises two support rods (12) which are vertically arranged side by side in the front-back direction; the framework (10) is provided with a pair of connecting rod mechanisms (16) corresponding to the stool boards (30); the two connecting rod mechanisms (16) are respectively connected to the bottoms of the two support rods (12); each connecting rod mechanism (16) comprises swinging arms (162) and connecting arms (164) which are rotatably connected together; the swinging arm (162) is supported on the ground; the outer end of the swinging arm (162) is rotatably connected to the support rod (12); the outer end of the connecting arm (164) is provided with a connecting shaft (166); the connecting shaft (166) is supported at the bottom of the stool board (30); the connecting shaft (166) is arranged along the width direction of the stool board (30) and is rotatably connected to the stool board (30); in an unfolded state, the connecting rod mechanism (16) is supported under the stool board (30) and maintains that the stool board (30) is horizontally placed; in a folded state, the connecting arms (164) are overturned, together with the stool board (30), towards one sides of the support rods (12), so that the stool board (30) is switched to be vertically placed, and the swinging arms (162) and the connecting arms (164) rotate together towards the inner side of the stool board (30) and abut against the bottom of the stool board (30).