Elevator Lifting Mechanism with Single Drive for Construction

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Solution Overview

Problem

Existing elevator systems in building construction phases require multiple lifting devices and a heavy drive to raise the machine platform and assembly platform, making them inefficient and costly, with unclear methods for adapting the usable lifting height to increasing building heights.

Innovation Solution

An elevator system with a single lifting device, such as a block and tackle, where the drive is located on the machine platform, allowing both the machine platform and assembly platform to be raised using the same mechanism, with adjustable support means for stable positioning and a continuous cable winch for efficient cable management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If multiple lifting devices are used to raise the machine platform and assembly platform, then the lifting capability is sufficient, but the device complexity and installation space increase

Engineering Contradiction:

Improvelifting capabilityVSAvoidnumber of lifting devices

Core Design Contradiction:

PowerVSDevice complexity

Solution Approach 1:

The single lifting device is designed to perform multiple functions: it can raise the machine platform, raise the assembly platform, and lower both platforms. The lifting device includes a drive mechanism that can selectively connect to different platforms through coupling means, allowing one device to replace what would traditionally require multiple separate lifting devices

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system employs movable and selectively connectable coupling means that allow the lifting device to dynamically switch between different operating modes. The coupling means can be connected to either the machine platform or the assembly platform depending on which lifting operation is required, providing dynamic adaptability that enables a single device to perform multiple lifting functions

Inventive Principle:

Principle #15Dynamics

2Device complexity

If the drive is arranged on the bearing structure above the machine platform, then the lifting mechanism is simplified, but the weight to be lifted increases and power supply requirements increase

Engineering Contradiction:

Improvelifting mechanism complexityVSAvoidweight of drive

Core Design Contradiction:

Device complexityVSWeight of moving object

Solution Approach 1:

Instead of placing the drive on the stationary bearing structure above the shaft (as in conventional systems), the drive is inverted and placed on the moving machine platform. This reversal of the drive location means the drive moves with the platform it serves, eliminating the need to lift the drive weight during platform elevation operations and reducing the overall lifting mass

Inventive Principle:

Principle #13The other way round (Inversion)

3Device complexity

If a single lifting device is used to raise both platforms, then the device complexity and installation space are reduced, but the adaptability to adjust both platforms independently is limited

Engineering Contradiction:

Improvenumber of lifting devicesVSAvoidplatform adjustment flexibility

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The system achieves independent platform adjustment through dynamic coupling means that can be selectively connected to different platforms. The coupling means include movable elements that allow the single lifting device to switch between connecting to the machine platform and connecting to the assembly platform, providing the adaptability of multiple devices while using only one

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The coupling means act as an intermediary between the lifting device and the platforms. These coupling means include selective connection elements that enable the lifting device to interface with different platforms as needed, providing the flexibility to adjust either platform independently while maintaining a single lifting device configuration

Inventive Principle:

Principle #24Intermediary (Mediator)

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

This solution simplifies the process by using a single lifting device to adjust both the machine and assembly platforms, reducing the weight and installation space requirements, and enabling efficient adaptation of the elevator system's height as the building grows, while minimizing the need for additional power supplies and reducing operational costs.

Implementation Method 1

said lifting device comprising a drive arranged on the machine platform and also being used to move the assembly platform

Methodology Applied

Scientific EffectMechanical Advantage: Mechanical Advantage

Implementation Method 2

a continuous cable winch for efficient cable management

Methodology Applied

Scientific EffectCable winding mechanism: Mechanical Advantage

Data Source

PatentUS11053098B2Elevator system and method for constructing such an elevator system

Publication Date: 2021.07.06 INVENTIO AG

AI summary

An elevator system arranged in an elevator shaft of a building in the construction phase grows with the building using a lifting process. The system includes a machine platform with an elevator drive machine and an elevator car suspended on the machine platform by a carrier. The elevator car is raised during the lifting process by a lifting device. The elevator system also includes an assembly platform that can be mechanically moved in relation to the machine platform along the elevator shaft. The lifting device includes a drive arranged on the machine platform and is also used to move the assembly platform.