Foldable Table Locking Mechanism for Safe Pivoting Storage

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Solution Overview

Problem

Large conference tables are cumbersome to store and move due to their size, and existing folding mechanisms may not ensure safe and effortless conversion between use and storage states, risking unexpected movement.

Innovation Solution

A table design featuring pivotable top parts coupled with a connecting component and a locking device that snaps into place, allowing safe and easy conversion between use and storage positions, with an energy storage device for controlled pivoting, ensuring the table remains stable and secure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the table top is made large to provide storage space and accommodate many people, then the table can serve more functions and more users, but the table becomes cumbersome to move and store

Engineering Contradiction:
Improvetable functionalityVSAvoidtable mobility
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The table top is divided into multiple panel parts that can be folded relative to each other. The base frame is also segmented into movable components. This segmentation allows the large table to be folded into a compact configuration for easy storage and relocation while maintaining full surface area when in use.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The table incorporates movable base frame components and hinge mechanisms that enable dynamic reconfiguration. The table can transition between a deployed state (providing large surface area) and a folded state (compact for storage), making it adaptable to different spatial requirements.

Inventive Principle:
Principle #15Dynamics

2Volume of moving object

If the table is designed to be foldable for easy storage, then the table can be stored space-efficiently, but the table may move unexpectedly and create safety hazards

Engineering Contradiction:
Improvestorage spaceVSAvoidtable stability
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The locking mechanism automatically engages when the table panels are folded into the storage position, preventing unexpected movement before it can occur. This preliminary locking action ensures safety is maintained during the transition to compact storage configuration.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The locking mechanism is designed to automatically lock the table panels in both deployed and folded positions without requiring manual intervention. The mechanism self-activates based on the table's configuration state, providing reliable stability in both use and storage modes.

Inventive Principle:
Principle #25Self-service

3Reliability

If a locking mechanism is added to prevent unexpected movement, then the table stability is improved, but the device complexity increases

Engineering Contradiction:
Improvetable stabilityVSAvoidmechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking mechanism automatically engages and disengages based on the table's configuration without requiring manual operation. This self-service capability provides reliable stability while minimizing the complexity of user interaction with the locking system.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The locking mechanism utilizes spring-based automatic engagement rather than complex manual locking systems. This mechanical substitution provides reliable locking through simple spring-loaded components that automatically activate based on the table's position, reducing overall system complexity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Strength

If the table panels are made rigid to ensure stability, then the table strength is improved, but the table cannot be folded for storage

Engineering Contradiction:
Improvetable strengthVSAvoidtable foldability
Core Design Contradiction:
StrengthVSAdaptability or versatility

Solution Approach 1:

The table structure is segmented into rigid panel parts connected by hinge mechanisms. The panels themselves maintain rigidity for strength and stability, while the hinge connections provide the flexibility needed for folding and reconfiguration into compact storage positions.

Inventive Principle:
Principle #1Segmentation

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 quick and safe conversion of the table between use and storage states, preventing accidental folding and ensuring stability, even with large surface areas, while allowing for efficient space-saving storage and easy relocation.

Implementation Method 1

the energy storage device absorbs energy when the plate parts are pivoted from the stowage position into the usage position

Methodology Applied
Scientific EffectEnergy absorption: Damping

Implementation Method 2

the locking device causes at least one of the plate parts to snap into place on the connecting component when the plate parts are pivoted from their stowed position into their usage position

Methodology Applied
Scientific EffectSnapping into place: Mechanical Fastener

Data Source

PatentEP2522253B1Table
Publication Date: 2014.06.04 SEDUS STOLL
  • EP2522253B1 patent drawingFigure 1~2
  • EP2522253B1 patent drawingFigure 3
  • EP2522253B1 patent drawingFigure 4(A)

AI summary

The table (1) has plate portions (2a,2b) that are arranged relative to each other in storage position. The edge portions of plate portions are arranged in a plane (E1) to face each other in use position. The plate portions are locked with connection component (7) by a locking device (14) in use position. The plate portions are engaged at connection component, when plate portions are pivoted from storage position to use position. The engaging of plate portions at connection component is prevented, when plate portions are pivoted from use position to storage position.