Wall Adjustment Contour for Stable Appliance Component Mounting

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Solution Overview

Problem

Existing household appliances face challenges in securely fastening built-in parts within the receiving space without compromising the available volume or accessibility, often resulting in unstable attachment and misalignment.

Innovation Solution

The design incorporates an elongate projection on the adjustment contour that faces away from the receiving space, allowing for precise positioning and enhanced support of the holding part, which is coupled to the adjustment contour, enabling secure and stable fastening of built-in parts without reducing the receiving space volume or impairing accessibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a mounting bracket is used to attach components inside the housing, then the attachment stability is improved, but the available volume of the receiving space is reduced

Engineering Contradiction:
Improveattachment stabilityVSAvoidavailable volume of receiving space
Core Design Contradiction:
ReliabilityVSVolume of stationary object

Solution Approach 1:

The invention extracts the mounting function from the interior of the receiving space by positioning the adjustment contour and holding part on the outer surface of the wall element. This allows the component to be mounted outside the receiving space while still achieving stable attachment, thereby resolving the contradiction between attachment stability and available volume.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If a mounting bracket is used to attach components, then the attachment stability is improved, but the accessibility of the receiving space is impaired

Engineering Contradiction:
Improveattachment stabilityVSAvoidaccessibility of receiving space
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

By relocating the mounting structure (adjustment contour and holding part) to the outer surface of the wall element, the invention removes the mounting bracket from the interior of the receiving space. This extraction ensures that shelves, pull-out devices, and storage trays can be freely inserted and accessed without obstruction, while attachment stability is maintained through the external mounting structure.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of manufacture

If the adjustment contour is positioned inside the receiving space, then the component can be attached, but the spatial restriction of the receiving space occurs

Engineering Contradiction:
Improvecomponent attachmentVSAvoidreceiving space volume
Core Design Contradiction:
Ease of manufactureVSVolume of stationary object

Solution Approach 1:

Instead of positioning the adjustment contour inside the receiving space as in conventional designs, the invention inverts the approach by placing the adjustment contour on the outer surface of the wall element. This inversion allows the holding part to extend into the receiving space for component attachment while the bulk of the mounting structure remains outside, thus avoiding spatial restriction.

Inventive Principle:
Principle #13The other way round (Inversion)

4Manufacturing precision

If a projection is added to the adjustment contour for positioning, then the positioning precision is improved, but the device complexity increases

Engineering Contradiction:
Improvepositioning precisionVSAvoidadjustment contour complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The invention applies local quality by adding a projection only at the specific location on the adjustment contour where positioning is required. This localized feature provides precise positioning for the holding part without requiring complex modifications to the entire adjustment contour structure, thus achieving high positioning precision with minimal increase in device complexity.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP3546860B1Household appliance with an adjustment contour on a wall element
Publication Date: 2022.11.16 BSH HAUSGERATE GMBH
  • EP3546860B1 patent drawingFigure 1
  • EP3546860B1 patent drawingFigure 2
  • EP3546860B1 patent drawingFigure 3

AI summary

The invention relates to a household appliance (1) comprising a body (2) and a receiving chamber (9) located in the body (2) and at least partially bounded by a wall element (13, 14), and comprising a retaining element (17, 40) which is arranged on a side (13b, 14b) of the wall element (13, 14) facing away from the receiving chamber (9) and which is coupled to an adjustment contour (21) formed on the wall element (14) and extends over the adjustment contour (21) in a plane encompassing the wall element (14). According to the invention, the adjustment contour (21) has a projection (22) facing away from the receiving chamber (9) and extending elongated in a plane encompassing the wall element (14).