Elevator Installation Device External Attachment

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Solution Overview

Problem

Existing installation devices for elevator shafts require technicians to enter the shaft to attach displacement apparatuses, posing safety risks and necessitating additional displacement devices for positioning, which complicates the installation process.

Innovation Solution

The installation device features a deflection roller and a holding apparatus that allows the displacement apparatus to be positioned from outside the elevator shaft, with a deflection roller directing the load-bearing means vertically downward, enabling the displacement apparatus to be securely and easily attached from above, eliminating the need for technicians to enter the shaft and additional displacement devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If technicians enter the elevator shaft to attach the displacement apparatus to the installation device, then the displacement apparatus can be securely attached, but safety risks increase and additional displacement devices are required for positioning

Engineering Contradiction:

Improvesecure attachment of displacement apparatusVSAvoidsafety risks for technicians

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

Instead of technicians entering the shaft to attach the displacement apparatus from below, the apparatus is attached from above through the door opening. The holding apparatus is positioned on the upper side of the installation device, allowing external attachment while eliminating the need for technicians to enter the hazardous shaft environment.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The holding apparatus acts as an intermediary component that receives the displacement apparatus from above and transfers it to the installation device. This intermediary structure enables safe external attachment while ensuring secure connection, eliminating the need for technicians to directly handle the apparatus inside the shaft.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If technicians enter the elevator shaft to attach the displacement apparatus, then the apparatus can be positioned, but additional displacement devices are required and operational complexity increases

Engineering Contradiction:

Improvepositioning of displacement apparatusVSAvoidnumber of displacement devices required

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The attachment operation is extracted from the shaft environment and performed externally through the door opening. The holding apparatus is designed to receive and position the displacement apparatus from above, eliminating the need for technicians to enter the shaft and removing the requirement for additional positioning devices.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The holding apparatus is designed to automatically guide and position the displacement apparatus when attached from above. The structure itself provides the positioning function through its geometric design and engagement features, eliminating the need for separate positioning devices or complex manual positioning procedures.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS11655123B2Installation device and method bringing an installation device into an installation position in an elevator shaft

Publication Date: 2023.05.23 INVENTIO AG

AI summary

An installation device used in an elevator shaft has a first carrier with first and second carrier ends, a support element pivotably arranged on the first carrier end, and a holding apparatus holding a displacement apparatus by which installation material can be displaced in the elevator shaft. When the installation device is in an installation position, the first carrier end is supported against a threshold of an elevator shaft door opening by the support element and the second carrier end is supported at least indirectly against a shaft wall that is opposite the door opening. The holding apparatus is arranged on an upper side of the installation device in the installation position such that the displacement apparatus is supported from above on the holding apparatus.