Escalator Structural Frame for Elevator Integration

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Solution Overview

Problem

Existing escalators pose obstacles for wheelchair users and those with baby carriages, requiring detours to find elevators, and complex, expensive solutions like height-adjustable steps disrupt transport flow.

Innovation Solution

An escalator design that integrates a supporting structure allowing connection to an elevator, providing a separate transport option with a movable platform on a guide rail, usable independently of the escalator's direction, and equipped with safety features and access control systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If height-adjustable steps are used to transport wheelchairs, then wheelchair accessibility is improved, but device complexity and maintenance risk increase significantly

Engineering Contradiction:

Improvewheelchair accessibilityVSAvoidmechanical complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The invention separates the accessibility function from the escalator mechanism by introducing a distinct platform device that can be attached to the escalator structure. This segmentation allows the escalator to maintain its simple, reliable step mechanism while the separate platform handles wheelchair transport, thus improving accessibility without increasing escalator complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The platform device serves multiple functions: it transports wheelchairs, can be configured for strollers or shopping carts, and integrates with the existing escalator infrastructure. This multi-functionality approach addresses various accessibility needs with a single versatile device rather than modifying the escalator itself.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If height-adjustable steps are implemented, then wheelchair transport capability is improved, but maintenance cost and damage risk increase

Engineering Contradiction:

Improvewheelchair transport capabilityVSAvoidmaintenance cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

By segmenting the accessibility solution into a separate attachable platform rather than integrating it into the escalator's step mechanism, the invention creates a modular system that is easier to manufacture, install, and maintain. The platform can be serviced independently without affecting the escalator's core functionality.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The platform device is designed as a simpler, more replaceable component compared to complex height-adjustable step mechanisms. If damage or wear occurs, the platform can be replaced more economically and quickly than repairing integrated mechanical adjustments in the escalator steps.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Adaptability or versatility

If wheelchair transport mode is activated on the escalator, then accessibility is improved, but the escalator's flow of traffic is interrupted and slowed down

Engineering Contradiction:

ImproveaccessibilityVSAvoidescalator traffic flow

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The platform for wheelchair transport is segregated from the main escalator step flow, allowing it to operate in a separate lane or configuration. This segmentation enables simultaneous operation of the escalator for general traffic and the platform for accessibility needs, preventing interruptions to the main traffic flow.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention utilizes the lateral or vertical space alongside the escalator steps to position the platform, effectively adding another dimension for transport. This spatial differentiation allows wheelchair users to be transported without occupying the step path used by pedestrians, maintaining uninterrupted escalator flow.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

4Adaptability or versatility

If a separate elevator is installed next to the escalator, then accessibility for disabled users is improved, but device complexity and space requirements increase

Engineering Contradiction:

Improveaccessibility for disabled usersVSAvoidsystem complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The invention merges the elevator functionality with the escalator by using a platform that can be attached to and integrated with the escalator's supporting structure. This combination reduces overall system complexity compared to installing a completely separate elevator, as it shares structural support and space with the existing escalator infrastructure.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The platform serves as a multi-functional device that can operate as an accessibility solution for wheelchairs, function as a small elevator for vertical transport, and potentially accommodate other uses like stroller or shopping cart transport. This universality reduces the need for multiple separate systems, lowering overall complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP3704053B1Escalator connectable to an elevator

Publication Date: 2023.01.11 INVENTIO AG

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AI summary

The invention relates to an escalator (1) which comprises a structural frame (6), said escalator (1) being connectible to a lift (30). For this purpose, fastening points (20) for fastening components of the lift (30) are arranged on the structural frame (6) so that at least some of the components of the lift (30) can be supported by means of the structural frame (6).