Floor Installation Cassette With Telescopic Leveling

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Solution Overview

Problem

Existing floor installation cassettes for electrical devices lack flexibility in accommodating various floor types and require complex installation processes, especially after screed application, due to protruding components and lack of adjustability.

Innovation Solution

A floor installation cassette design featuring smooth, aligned outer walls with integrated leveling devices that allow for telescopic adjustment, enabling easy embedding in screed and subsequent leveling, along with a stable and aesthetically pleasing structure suitable for diverse floor types, including screed, dry screed, and wooden floors, with provisions for cable and pipe routing and a pivotable cassette cover.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the outer walls of the upper and lower parts have protruding components or offsets, then the cassette can be anchored in the screed, but the cassette cannot be leveled after screed application and the installation process becomes complex

Engineering Contradiction:
Improveanchoring in screedVSAvoidleveling after screed application
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The outer walls are designed with differentiated local properties: the main surface is smooth for embedding and leveling, while specific localized features (perforations, recesses) provide anchoring function. This allows the cassette to be both anchored reliably and leveled easily after screed application.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The cassette design allows for post-installation adjustment of the upper part relative to the lower part, enabling leveling operations even after the screed has hardened. The telescopic arrangement permits vertical movement to accommodate height variations.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the outer walls are smooth and aligned, then the cassette can be leveled after screed application, but the anchoring force in the screed is reduced

Engineering Contradiction:
Improveleveling after screed applicationVSAvoidanchoring in screed
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The outer walls are designed with differentiated local properties: the main surface is smooth for embedding and leveling, while specific localized features (perforations, recesses) provide anchoring function. This allows the cassette to be both anchored reliably and leveled easily after screed application.

Inventive Principle:
Principle #3Local quality

3Manufacturing precision

If complex leveling devices are used to achieve precise leveling, then the cassette can be leveled accurately, but the device complexity and installation difficulty increase

Engineering Contradiction:
Improveleveling precisionVSAvoidleveling device complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The leveling function is segmented into simple, distributed elements (perforations in the lower part, corresponding recesses in the upper part) rather than a single complex mechanism. This allows precise leveling through simple relative movement while keeping the device structure simple.

Inventive Principle:
Principle #1Segmentation

4Adaptability or versatility

If the cassette design accommodates multiple floor types, then the versatility is improved, but the installation process becomes more complex

Engineering Contradiction:
Improvesuitability for various floor typesVSAvoidinstallation process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The cassette is designed as a universal solution that can be installed in various floor types (screed, dry screed, wooden floors) using the same basic procedure. The smooth outer walls and standardized telescopic arrangement work across different floor constructions without requiring floor-specific adaptations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Facilitates flexible installation on multiple floor types, allows for post-screed leveling, and simplifies the installation process by embedding smooth outer walls in the screed, ensuring secure anchoring and easy access for cable routing, while maintaining a clean appearance.

Implementation Method 1

The upper part rests on threaded bolts that are rotatably attached to the lower part. This allows the upper part to be leveled in relation to the lower part.

Methodology Applied
Scientific EffectThreading: Screw

Implementation Method 2

Since the outer walls of the upper and lower parts are smooth and essentially aligned with each other, the floor installation cassette can still be leveled even after the floor screed has been poured in, since the smooth outer walls are embedded in the screed

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP1811624B1Floor installation box for electric installation devices
Publication Date: 2009.08.19 OBO BETTERMANN GMBH & CO KG
  • EP1811624B1 patent drawingFigure 1
  • EP1811624B1 patent drawingFigure 2
  • EP1811624B1 patent drawingFigure 3~4

AI summary

A built-in under-floor box (10) for electrical installations comprises over (14) and under (12) parts with levelers (16) that can be pushed together with smooth sidewalls aligned to one another or with small fixers in the region of the outer wall strengthening.