Eccentric Lifting Column for Wheel Access

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Solution Overview

Problem

Existing mobile lifting devices complicate wheel changes and maintenance by obscuring access to wheel nuts and brake attachment points, requiring additional equipment and manual effort, especially when lifting vehicles.

Innovation Solution

A mobile lifting device with an asymmetrical, eccentrically arranged lifting column that functions as both a single-post lift and a wheel assembly trolley, providing direct access to wheel nuts and allowing for wheel changes without additional equipment, reducing the number of work steps and manual effort required.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a lifting device with a centrally arranged lifting column is used to lift vehicles, then the vehicle can be raised and lowered, but access to wheel nuts and brake attachment points becomes difficult or impossible

Engineering Contradiction:

Improveaccess to wheel nutsVSAvoidlifting column arrangement

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The lifting column is arranged asymmetrically (eccentrically) relative to the base frame, positioned at the corner rather than centrally. This asymmetric placement creates open space on one side of the vehicle, providing unobstructed access to wheel nuts and brake attachment points while maintaining the vehicle lifting function

Inventive Principle:

Principle #4Asymmetry

2Adaptability or versatility

If a separate wheel assembly trolley is used to change wheels, then wheel assembly can be performed, but additional equipment and manual effort are required

Engineering Contradiction:

Improvewheel assembly capabilityVSAvoidnumber of equipment

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The lifting device is combined with wheel assembly functionality by integrating a load handling device with gripping arms onto the lifting column. This merging allows the single lifting device to perform both vehicle lifting and wheel assembly operations, eliminating the need for a separate wheel assembly trolley

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The lifting device is designed with multi-functionality, serving both as a vehicle lifter and as a wheel assembly trolley. The load handling device with adjustable gripping arms enables the same equipment to handle different tasks (vehicle lifting and wheel manipulation), reducing the total number of equipment needed

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP2870102B1Lifting device and method for installing and uninstalling a wheel using such a lifting device

Publication Date: 2017.12.27 FINKBEINER GERHARD

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AI summary

The invention relates to a lifting device for lifting loads, vehicles, or the like, comprising a mobile base frame (12); a lifting column (14) provided on the base frame (12); a support (15), said lifting column (14) and support (15) being guided by a guide (45); a load receiving means (20) which is arranged on the support (15) and by means of which a load receiving region (21) is determined, said base frame (12) having at least three support points outside of the load receiving region (21) of the load receiving means (20); and a drive unit which can be controlled by a controller and which moves the support (14) up and down relative to the lifting column (14). The lifting column (14) is arranged on the base frame (12) eccentrically to the load receiving region (21) and in a rotated manner relative to a longitudinal side of the load receiving region (20).