Motor-Adjusted Spring Assembly for High Load in Compact Space

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Solution Overview

Problem

Large spring systems have a large footprint due to the use of large springs and complicated hydraulic systems, making them unsuitable for applications requiring compact designs that can handle significant loads.

Innovation Solution

An adjustable spring system that adjusts compression on mechanical springs and fluid pressure using motors, allowing for manual or motorized control, featuring a configuration with an outer and inner sleeve, rods, and a drive housing with a motor and gear system to manage the spring assembly's operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If large springs and complicated hydraulic systems are used in spring systems, then the load handling capability is improved, but the footprint and device complexity increase

Engineering Contradiction:
Improveload handling capabilityVSAvoidfootprint
Core Design Contradiction:
ForceVSArea of stationary object

Solution Approach 1:

The patent employs a telescopic sleeve configuration where an inner sleeve is nested within an outer sleeve, both containing springs that work together to support loads. This nested arrangement allows multiple spring elements to be compactly arranged, providing high load capacity while minimizing the overall footprint of the spring system.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The spring system is divided into multiple independent components including outer sleeve, inner sleeve, first spring, second spring, and drive mechanism. This segmentation allows each component to be optimized independently and enables compact arrangement of multiple spring elements, achieving high load handling capability in a reduced footprint.

Inventive Principle:
Principle #1Segmentation

2Force

If large springs and complicated hydraulic systems are used in spring systems, then the load handling capability is improved, but the device complexity increases

Engineering Contradiction:
Improveload handling capabilityVSAvoidsystem complexity
Core Design Contradiction:
ForceVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the complicated hydraulic system from the spring system, replacing it with a simpler mechanical drive mechanism consisting of a motor, drive shaft, and adjustment mechanism. This extraction maintains load handling capability while significantly reducing system complexity.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the hydraulic system with a mechanical drive system using a motor coupled to a drive shaft that directly adjusts the spring compression. This substitution eliminates hydraulic fluid, seals, and complex control systems while providing reliable load management through pure mechanical means.

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

3Adaptability or versatility

If motorized adjustment mechanism is added to adjust spring compression, then the adaptability is improved, but the device complexity increases

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

Solution Approach 1:

The patent incorporates a motorized adjustment mechanism that allows dynamic modification of spring compression ratios and pre-loads. The motor coupled to the drive shaft can adjust the position of the inner sleeve relative to the outer sleeve, enabling real-time adaptation of spring characteristics to match varying load requirements, thereby improving system adaptability.

Inventive Principle:
Principle #15Dynamics

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 system provides a compact solution capable of handling large loads while maintaining adjustability and reliability, suitable for various industrial applications.

Implementation Method 1

The one or more motors can be an electrical motor, hydraulic motor, fuel-powered motor, and the like

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Implementation Method 2

The spring system can include one or more mechanical springs and/or include a compressible fluid

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 3

The spring system can include one or more mechanical springs and/or include a compressible fluid

Methodology Applied
Scientific EffectFluid compression: Compression

Data Source

PatentEP3001066B1Electromechanical spring system
Publication Date: 2025.08.27 BG MC US HOLDINGS LLC
  • EP3001066B1 patent drawingFigure 1
  • EP3001066B1 patent drawingFigure 2
  • EP3001066B1 patent drawingFigure 3

AI summary

A spring assembly that includes the use of an adjustable spring system that adjusts the compression on one or more mechanical springs (80) in the spring system and/or adjusts the pressure of one or more fluids in the spring assembly. The spring assembly can be adjusted manually and/or by one or more motors (100). The one or more motors can be an electrical motor, hydraulic motor, fuel-powered motor, and the like.