Rotatable Battery Lift for Vehicle Pits and Tight Spaces

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Solution Overview

Problem

Existing lifting devices for motor vehicles or components in automotive engineering are limited by their need for external power supplies and require significant installation space, restricting their application in confined spaces like vehicle inspection pits.

Innovation Solution

A self-sufficient lifting device with an electric drive system and rotatable energy storage unit, allowing flexible deployment and operation without external power, with components that can be rotated to adapt to local conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a hydraulic or pneumatic lifting device is coupled to an external power supply system, then lifting capability is achieved, but installation space requirements increase and flexibility decreases

Engineering Contradiction:
ImproveflexibilityVSAvoidinstallation space
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent extracts the energy storage function from the external hydraulic/pneumatic system and places it directly on the lifting device through an integrated battery pack. This extraction eliminates the need for external power supply lines and reduces installation space requirements while maintaining lifting capability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The lifting device is designed as a self-contained unit that combines lifting functionality with integrated energy storage. This multi-functional design allows the device to operate independently without external infrastructure, enhancing versatility and reducing space requirements.

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

2Adaptability or versatility

If the energy storage device is fixedly mounted on the chassis, then structural stability is improved, but adaptability to different working positions decreases

Engineering Contradiction:
Improveadaptability to working positionsVSAvoidstructural stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The energy storage device is mounted on a rotatable bearing that allows it to be rotated to different positions relative to the lifting unit. This dynamic mounting arrangement enables the device to adapt to various working positions while maintaining structural stability through proper bearing design and secure attachment points.

Inventive Principle:
Principle #15Dynamics

3Device complexity

If an external hydraulic or pneumatic supply system is used, then lifting function is achieved, but device complexity and installation requirements increase

Engineering Contradiction:
Improvesystem complexityVSAvoidself-sufficiency
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The lifting device is equipped with its own energy storage system (battery pack) that provides electrical power independently. This self-service capability eliminates dependence on external hydraulic or pneumatic infrastructure, reducing system complexity and installation requirements while improving reliability through self-sufficiency.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4696639A1Lifting device for lifting loads and lifting system for use in a pit
Publication Date: 2026.02.18 MAHA MASCHINENBAU HALDENWANG GMBH & CO KG
  • EP4696639A1 patent drawingFigure 1~2
  • EP4696639A1 patent drawingFigure 3~4
  • EP4696639A1 patent drawingFigure 5~6

AI summary

The disclosure provides a lifting device 100 for lifting loads, in particular motor vehicles or motor vehicle components, and comprises a chassis 10 that is movable for positioning the lifting device 100; a hydraulic lifting unit 20 for lifting a load by a lifting movement along a lifting axis; and an electric drive system 30 with an electric energy storage device 31. The lifting unit 20 is attached to the chassis 10, and the drive system 30 is configured to drive the lifting unit 20. At least the energy storage device 31 is rotatably mounted relative to the chassis 10 about a pivot axis.