Island Hood Telescopic Chimney Mounting With Concealed Fasteners

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Solution Overview

Problem

Existing extractor hoods with ceiling attachment feature visible fastening elements, requiring additional covers to conceal them, which complicates installation and aesthetics.

Innovation Solution

The extractor hood employs mounting elements with elastic sections and projections to securely attach the upper telescopic part to the inner chimney housing, allowing vertical adjustment and concealment of fastening elements, enabling seamless integration with the ceiling surface without visible fasteners.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional fastening elements are used to attach the upper telescopic part to the ceiling surface, then secure attachment is achieved, but visible fastening elements appear on the ceiling surface requiring additional covers

Engineering Contradiction:

Improveattachment securityVSAvoidneed for additional covers

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The visible fastening elements and additional covers are extracted from the system by integrating the fastening function directly into the mounting elements that remain hidden. The mounting elements serve dual purposes: securing the upper telescopic part while remaining invisible from the ceiling surface, thus eliminating the need for separate visible fasteners and decorative covers.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The mounting elements act as intermediaries between the upper telescopic part and the ceiling surface. These elements provide the necessary mechanical attachment while their design allows them to remain concealed, mediating between the functional requirement of secure fastening and the aesthetic requirement of invisible mounting.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Shape

If additional covers are added to conceal visible fastening elements, then aesthetic appearance is improved, but installation complexity and time increase

Engineering Contradiction:

Improveaesthetic appearanceVSAvoidinstallation time

Core Design Contradiction:

ShapeVSLoss of time

Solution Approach 1:

The functional elements (mounting elements for secure attachment) and aesthetic elements (concealment features) are merged into a single integrated component. The mounting elements are designed to simultaneously provide secure fastening and remain invisible, combining what were previously separate functions into one unified solution that simplifies installation.

Inventive Principle:

Principle #5Merging (Combining)

3Stability of the object's composition

If the upper telescopic part is rigidly fixed to prevent movement, then stable positioning is achieved, but adjustment capability is lost

Engineering Contradiction:

Improveposition stabilityVSAvoidheight adjustment capability

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The mounting element incorporates an elastic section that allows dynamic adjustment during installation. The upper section can be moved vertically relative to the lower section, enabling height adjustment and positioning flexibility. Once positioned, the elastic section maintains stable fixation, thus providing both adjustability and stability.

Inventive Principle:

Principle #15Dynamics

4Adaptability or versatility

If mounting elements are designed with multiple sections and elastic components, then adjustment and concealment capabilities are improved, but manufacturing complexity increases

Engineering Contradiction:

Improveadjustment capabilityVSAvoidmanufacturing simplicity

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The mounting element uses an elastic section (flexible component) connecting the upper and lower sections. This flexible element enables vertical movement and adjustment while maintaining structural integrity. The elastic section can be manufactured as a simple deformable component, avoiding complex mechanisms while achieving the desired adjustability and concealment functions.

Inventive Principle:

Principle #30Flexible shells and thin films

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

This solution provides a visually appealing installation with concealed fastening elements, allowing for adjustable height and secure attachment of the extractor hood, eliminating the need for additional covers and ensuring optimal alignment and protection against damage during operation.

Implementation Method 1

the upper and the lower section in particular having an elastic section connected to each other

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentEP2754965B1Extractor hood, in particular island hood

Publication Date: 2018.06.27 MIELE & CO KG

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AI summary

The hood (1) has an inner chimney housing (2) comprising a lower part, and a suction housing (4) holding a supporting frame element and an upper supporting frame element (6), which is attached to a ceiling surface. An upper telescopic part is partly covered by a lower telescopic part (8). The upper telescopic part is mounted on the inner chimney housing, and a mounting element is fixed on the inner chimney housing, where the mounting element supports the upper telescopic part at a lower edge region in an assembled state. The mounting element is vertically movable relative to the surface.