Folding Insert Tabletop Unit with Spring-Damped Panel Control
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Solution Overview
Problem
Extendable tables often require significant user effort to open and close the additional table top, which can be heavy and prone to accidental collisions, potentially causing damage.
Innovation Solution
A table top unit with a folding insert held in a frame, featuring a connecting element and a guide element, and equipped with a spring and/or damping element that facilitates easy opening and closing by damping the downward movement of the partial plates, reducing the effort required and preventing uncontrolled falls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the additional table top is made large enough to extend the main table top flush to the side, then the table surface area is increased, but the weight of the additional table top increases and requires considerable effort to open or fold
Solution Approach 1:
The additional table top is divided into two articulated partial panels that can be folded independently. This segmentation reduces the weight and complexity of each individual moving component, making it easier to open and close while still achieving the full extended surface area when both panels are deployed
Solution Approach 2:
A spring element is introduced as a counterweight mechanism to offset the weight of the additional table top and partial panels. The spring provides upward force during opening and closing operations, significantly reducing the effort required by the user to maneuver the heavy extended surface
2Stability of the object's composition
If the additional table top is made heavy to ensure structural stability, then the table is more stable, but the partial panels can crash onto each other or the base frame when folded carelessly, potentially causing damage
Solution Approach 1:
A damping element is integrated into the mechanism to provide beforehand cushioning during the folding operation. This element absorbs and dissipates kinetic energy when the partial panels approach each other or the base frame, preventing harmful impacts and potential damage while allowing the heavy construction to maintain its structural stability
Solution Approach 2:
The damping element converts the potentially harmful kinetic energy of accidental careless folding into beneficial controlled deceleration. By transforming the harmful impact force into a controlled damping force, the system protects itself from damage while maintaining the structural integrity provided by the heavy construction
3Ease of operation
If a combined opening and lifting mechanism is provided to raise the additional table top to the level of the main table top, then the mechanism complexity increases, but the guided opening and simultaneous lifting can be achieved
Solution Approach 1:
The opening and lifting functions are merged into a single integrated mechanism. The connecting element connects the partial panels to the frame in such a way that opening the panels automatically triggers the lifting motion, raising the additional table top to the level of the main table top without requiring separate controls or complex coordinated mechanisms
Solution Approach 2:
The connecting element acts as an intermediary mechanism between the partial panels and the frame. It translates the opening motion of the panels into simultaneous lifting motion, providing a simple mechanical linkage that achieves coordinated guided opening and lifting without complex control systems
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
Enables the additional table top to be opened and closed with less effort, ensuring controlled movement and preventing damage, while also supporting the lifting of the partial plates during the unfolding process.
Implementation Method 1
a spring and/or damping element, which is arranged laterally to the folding insert and is connected to the connecting element and the frame
Implementation Method 2
a spring and/or damping element, which is arranged laterally to the folding insert and is connected to the connecting element and the frame
Data Source
Figure 1~2
Figure 3a~3c
Figure 4a~4c
AI summary
A tabletop unit (5) for an extendable table is described, comprising a folding insert (50) with a first partial panel (501) and a second partial panel (502), which are pivotally connected to each other and can be pivoted between a folded-down ready position and an unfolded working position. The tabletop unit (5) also has a frame (51) in which the folding insert (50) is held. Furthermore, a connecting element (52) is pivotally connected to both the first partial panel (501) and the frame (51), and a guide element (54) is attached to the folding insert (50) and is slidably guided on the frame (51). The tabletop unit (5) also has a spring and/or damping element (55) which is arranged laterally to the folding insert (50) and connected to the connecting element (52) and the frame (51).