Integrated Elevator Support Device for Machine and Sheave Installation

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Solution Overview

Problem

Conventional elevator systems require significant time and labor for installation, especially in machineroomless setups, as components need to be suspended or re-supported within the hoistway, complicating the process and increasing costs.

Innovation Solution

A single support device that integrates machine, sheave, and belt termination support, allowing pre-assembly and lifting with a crane for simplified on-site installation, featuring lateral beam members, transverse members, and adjustable termination assemblies to secure and align components efficiently.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If components are mounted separately in conventional machine rooms, then installation flexibility is maintained, but installation time and labor costs increase significantly

Engineering Contradiction:

Improveinstallation timeVSAvoidsupport structure complexity

Core Design Contradiction:

Loss of timeVSDevice complexity

Solution Approach 1:

The patent combines multiple separate support functions into a single integrated support device that simultaneously supports the machine, sheaves, and belt terminations. This consolidation eliminates the need for multiple separate mounting operations and reduces installation time while maintaining structural integrity through a unified support structure.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The support device is designed with pre-configured mounting points and alignment features that allow components to be pre-positioned and secured before final installation. This preliminary arrangement of support elements facilitates faster on-site assembly and reduces the complexity of field installation procedures.

Inventive Principle:

Principle #10Preliminary action

2Productivity

If a single integrated support is used, then installation time is reduced, but structural complexity increases

Engineering Contradiction:

Improveinstallation speedVSAvoidsupport structure complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The integrated support device is divided into distinct functional modules: a machine support portion, a sheave support portion, and a belt termination support portion. Each module is designed independently with specific mounting features, allowing for simplified manufacturing, easier assembly, and reduced overall structural complexity while maintaining high installation productivity.

Inventive Principle:

Principle #1Segmentation

3Ease of manufacture

If machine room is eliminated, then building expenses are reduced, but installation difficulty increases

Engineering Contradiction:

Improvebuilding costVSAvoidinstallation ease

Core Design Contradiction:

Ease of manufactureVSEase of operation

Solution Approach 1:

The support device is designed to perform multiple functions within a single structure: supporting the machine, mounting sheaves, and securing belt terminations. This multi-functional design eliminates the need for a dedicated machine room while maintaining ease of installation through integrated mounting points and alignment features, thereby reducing building costs without sacrificing installation simplicity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS8302740B2Integrated support for elevator machine, sheaves and terminations

Publication Date: 2012.11.06 OTIS ELEVATOR CO

AI summary

A single support device (30) is adapted to support and secure a machine (34) at least one sheave (38) and a plurality of termination members (44, 46). The single support device (30) is conveniently installed within a hoistway (26) or within a machine room (90). The machine (34) and sheave (38) may be premounted to the support device (30) and the entire assembly can be lowered into position by crane (300).