Motorized Extendable Table with Nested Leaf Storage and Remote Control

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Solution Overview

Problem

Existing extendable table technologies lack efficient and economical solutions for remote control operation, volumetric efficiency, durability, and low maintenance, as indicated by the complexity and inefficiency of previous patents.

Innovation Solution

A motorized extendable table design featuring a tabletop assembly, extension assemblies, a frame assembly, a motor housing with a computer and motor assembly, and a base assembly, allowing remote control operation, efficient storage, and durable construction with low maintenance costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual operation of extension tables is used, then device complexity is reduced, but ease of operation deteriorates due to difficulty in extending and retracting leaves

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical operation with an electric motor system. The motor assembly, controlled by a remote control device, automatically extends and retracts the table leaves through a mechanical transmission system involving gears and linkages, eliminating the need for manual effort while managing complexity through automated control.

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

Solution Approach 2:

The table system provides self-service through automated motorized operation. The remote control enables the user to independently operate the extension and retraction functions without requiring physical manipulation of the mechanical components, making the system serve itself through automated actuation.

Inventive Principle:
Principle #25Self-service

2Volume of moving object

If extension leaves are stored externally, then ease of operation is maintained, but volume efficiency deteriorates due to increased storage space requirements

Engineering Contradiction:
Improvevolume efficiencyVSAvoidease of operation
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The patent implements nesting by storing the extension leaves within the space underneath the main table surface when retracted. The leaves are positioned in a nested configuration within the table's structural framework, allowing compact storage without requiring external storage space, thus maintaining volume efficiency while preserving operational capability.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Reliability

If simple construction is used, then ease of manufacture is improved, but reliability deteriorates due to lack of durability

Engineering Contradiction:
ImprovereliabilityVSAvoidease of manufacture
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent employs composite construction combining multiple materials and components to achieve reliability. The table incorporates a motor assembly, gear mechanisms, linkage systems, and structural framing that work together as a composite system, providing durability and reliability while managing manufacturing complexity through modular assembly of these composite components.

Inventive Principle:
Principle #40Composite materials

4Adaptability or versatility

If complex features are added to extendable tables, then adaptability is improved, but device complexity increases leading to inefficiency and high cost

Engineering Contradiction:
ImproveadaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent achieves adaptability through a universal motorized system that can extend and retract the table to various configurations. The remote control provides multiple operation modes for different extension states, and the mechanical design accommodates various leaf positions, offering versatility without requiring multiple specialized mechanisms, thus managing complexity while maintaining adaptability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 motorized extendable table can be efficiently operated and controlled remotely, is volumetrically efficient for carrying and storage, and maintains durability and low maintenance costs while retaining effectiveness.

Implementation Method 1

The motor assembly comprises a motor

Methodology Applied
Scientific EffectElectric motor: Linear Motor

Implementation Method 2

The ballbearing side slides are mounted within each end of respective longitudinal rails

Methodology Applied
Scientific EffectBall bearing: Ball Bearing

Data Source

PatentEP3780994B1Motorized extendable table
Publication Date: 2023.10.25 HADIDA WORLDWIDE CO LLC
  • EP3780994B1 patent drawingFigure 1~2
  • EP3780994B1 patent drawingFigure 3
  • EP3780994B1 patent drawingFigure 4

AI summary

A motorized extendable table (10) having a tabletop assembly (20), first and second extension assemblies (20 and 40), a frame assembly (70), first and second extension frame assemblies (100), a motor housing (160), a computer assembly (180), a motor assembly (200), and a base assembly (250). In operation, the motor assembly (200) moves the extension frame assemblies (100) from a retracted to an extended configuration. Before reaching a fully extended configuration, the extension assemblies (20 and 40) are raised to a same plane as that of the tabletop assembly (20). To go from the extended to the retracted configuration, the motor assembly (200) moves the system in an opposite direction, moving the extension frame assemblies (100) down and back onto a lower plane. Extension frame assemblies (100) continue moving back until the fully retracted configuration is reached.