Elevator Installation Bracket Layout for Safer Shaft Rail Mounting

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Solution Overview

Problem

Existing elevator systems face safety risks for fitters during installation due to the need to fix installation brackets within the elevator shaft, reducing the usable cross-sectional area and complicating the installation process.

Innovation Solution

The installation bracket is fixed to the door-side shaft wall through a floor fixing section on a horizontal surface, allowing installation from the floor level, ensuring alignment with the shaft door, and utilizing adjustable and alignment elements for precise positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the installation bracket is fixed within the elevator shaft using conventional methods, then the guide rails can be securely installed, but the fitter's safety is compromised and the cross-sectional area of the elevator shaft is reduced

Engineering Contradiction:

Improveinstallation bracket fixing reliabilityVSAvoidfitter safety risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The installation bracket is repositioned from the vertical shaft wall to the horizontal floor surface, changing the fixing dimension from vertical to horizontal. This allows the bracket to be installed from the floor level rather than requiring work inside the shaft, eliminating the safety hazard while maintaining secure guide rail fixation through the side members extending into the shaft

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Manufacturing precision

If the installation bracket is fixed within the elevator shaft, then the guide rails can be positioned correctly, but the free cross-sectional area of the elevator shaft is reduced

Engineering Contradiction:

Improveguide rail positioning precisionVSAvoidelevator shaft cross-sectional area

Core Design Contradiction:

Manufacturing precisionVSArea of stationary object

Solution Approach 1:

The main body of the installation bracket (crossmember) is extracted from the elevator shaft's cross-sectional area and repositioned to the floor surface. Only the necessary side members extend into the shaft to hold the guide rails, minimizing the bracket's intrusion into the shaft's free cross-sectional area while maintaining precise guide rail positioning through the side members' proper placement

Inventive Principle:

Principle #2Taking out (Extraction)

3Ease of manufacture

If the installation bracket is fixed from within the elevator shaft, then the guide rails can be installed, but the installation work becomes more complex and dangerous

Engineering Contradiction:

Improveinstallation bracket installation easeVSAvoidinstallation process complexity

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The installation approach is inverted from the conventional method where the bracket is fixed from inside the shaft to a method where the bracket is fixed from the floor level. This inversion simplifies the installation process by allowing fitters to work from a safe, accessible position and eliminates the need for complex safety measures and shaft access procedures

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS12528669B2Elevator system with an installation bracket

Publication Date: 2026.01.20 INVENTIO AG

AI summary

An elevator system has an installation bracket fixed in an aligned manner in a region of a door-side shaft wall of an elevator shaft, wherein guide rails for guiding an elevator car arranged in the elevator shaft are fixed on the installation bracket. The installation bracket is fixed exclusively by at least one floor fixing section, wherein the at least one floor fixing section is fixed on a horizontal surface of the floor.