Foldable Table Bench Link Rod Mechanism to Reduce Slider Complexity
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Solution Overview
Problem
Existing foldable table benches have complex slider mechanisms that require synchronized operation to maintain straightness during unfolding and folding, leading to potential jamming and inconvenient operation, especially for longer benches where simultaneous operation with two arms is necessary.
Innovation Solution
A foldable table bench design featuring link rod mechanisms with swing and connecting arms that rotate to support the bench board in a horizontal position during unfolding and vertically during folding, allowing for single-action folding and simplified operation, with connecting shafts and C-shaped frames for stability and compact storage.
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 unfolded and folded, but the structure becomes complicated and requires synchronized operation to maintain straightness
Solution Approach 1:
The link rod mechanism is divided into multiple independent rotational components: the link rod rotating relative to the bench board, and the connecting rod rotating relative to the supporting rod. This segmentation allows each component to move independently without requiring synchronized operation, simplifying the overall structure while maintaining the foldable function.
Solution Approach 2:
The mechanism transitions from a static slider connection to a dynamic rotational system. The link rod and connecting rod can rotate freely at different angles and speeds, allowing the bench board to be folded or unfolded by a single person without needing to coordinate multiple sliding actions simultaneously.
2Adaptability or versatility
If slider mechanisms are used on both sides of the bench board, then the bench board can be folded, but simultaneous operation with two arms is required which is inconvenient
Solution Approach 1:
The left and right link rod mechanisms are merged into a coordinated rotational system. When one link rod rotates to fold the bench board, the other connecting rod automatically rotates in response through the shared supporting rod, allowing a single person to fold the bench board using one hand instead of requiring simultaneous two-handed operation.
3Adaptability or versatility
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 unstable
Solution Approach 1:
The mechanism allows the rotation axes to dynamically adjust their positions during unfolding. The link rod and connecting rod can rotate to different angles, enabling the rotation axes to align in a straight line when needed for stability, while also allowing non-aligned configurations during the unfolding process for adaptability.
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 enables smooth unfolding and folding with reduced complexity, allowing for easy operation of longer benches with one person, ensuring stability and convenience while maintaining a compact folded structure.
Implementation Method 1
Each of the link rod mechanisms comprises a swing arm and a connecting arm rotatably connected together
Implementation Method 2
the swing arm is supported on ground, the swing arm is rotatably connected to the supporting rod, the connecting arm is disposed with a connecting shaft, the connecting shaft supports a bottom portion of the bench board
Data Source
AI summary
The present disclosure a foldable table bench having a folded state and an unfolded state, the foldable table bench comprises a frame, a table board, and a bench board. The frame comprises two supporting rods vertically disposed side by side and back and forth, the frame is disposed with link rod mechanisms corresponding to the bench board, and the link rod mechanisms are respectively connected to bottom portions of the supporting rods. Each of the link rod mechanisms comprises a swing arm and a connecting arm rotatably connected together, the swing arm is supported on ground, the swing arm is rotatably connected to the supporting rod, the connecting arm is disposed with a connecting shaft, the connecting shaft supports a bottom portion of the bench board, and the connecting shaft is disposed along a width direction of the bench board and is rotatably connected to the bench board.