Drawer Side Wall Clamping Assembly for Easy Mounting

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Solution Overview

Problem

Existing drawer designs face complexity in assembly and potential jamming due to the need for multiple components and precise positioning of compression springs, and they often result in limited clamping forces leading to noise issues from horizontal displacement of side covers.

Innovation Solution

A drawer design featuring a mounting part with integrated spring elements that clamps the wall element between the front panel and rear wall, simplifying assembly and reducing components, with the spring element engaging through a U-shaped receptacle to secure the wall element and prevent horizontal displacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If a compression spring is inserted between the attachment strip and base to avoid visible gaps, then the gap visibility is improved, but the assembly complexity increases and jamming may occur

Engineering Contradiction:
Improvegap visibilityVSAvoidassembly complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The mounting part combines multiple functions into a single integrated component: it provides structural support, houses the spring element, and enables clamping of the wall element between the front panel and rear wall. This merging eliminates the need for separate holding parts and reduces assembly complexity while maintaining the gap-free appearance.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If elastic springy elements are used to clamp the side cover, then the vertical mounting is enabled, but the clamping force is insufficient leading to horizontal displacement and noise

Engineering Contradiction:
Improvevertical mounting capabilityVSAvoidclamping stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The spring element provides dynamic clamping force that automatically adjusts to maintain optimal contact pressure between the wall element and the mounting part. This dynamic mechanism ensures both ease of assembly and reliable prevention of horizontal displacement, eliminating noise while maintaining vertical mounting capability.

Inventive Principle:
Principle #15Dynamics

3Reliability

If multiple individual parts are used for mounting, then the fixation can be achieved, but the number of components increases and assembly becomes complex

Engineering Contradiction:
Improvefixation reliabilityVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The mounting part integrates multiple functions into a single component: it provides structural support, houses the spring element, and enables clamping of the wall element. This merging reduces the number of components while maintaining reliable fixation, simplifying both manufacturing and assembly processes.

Inventive Principle:
Principle #5Merging (Combining)

4Ease of manufacture

If the compression spring is not positioned exactly, then assembly errors occur, but precise positioning increases manufacturing complexity

Engineering Contradiction:
Improveassembly toleranceVSAvoidspring positioning precision
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The mounting part is designed with pre-positioned spring elements that are already correctly positioned within the mounting part structure. This beforehand positioning eliminates the need for precise field assembly of springs, providing assembly tolerance while maintaining manufacturing precision through controlled spring placement during mounting part fabrication.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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 design simplifies assembly, reduces component count, and enhances stability by ensuring secure fixation and reduced noise through effective clamping, allowing for easy mounting and secure attachment of the wall element.

Implementation Method 1

at least one spring element (20) is formed on the mounting part (14) in order to clamp the wall element (5) between the wall brackets (6, 7)

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2814356B1Drawer
Publication Date: 2016.04.20 PAUL HETTICH GMBH & CO KG
  • EP2814356B1 patent drawingFigure 1
  • EP2814356B1 patent drawingFigure 2
  • EP2814356B1 patent drawingFigure 3A

AI summary

The invention relates to a drawer (1), comprising a front panel (2), a rear wall (3), and side frames (4) arranged between the front panel (2) and the rear wall (3), wherein a wall element (5) is provided on at least one side frame (4), which wall element is retained between two wall retainers (6, 7), wherein one of the wall retainers (6) can be fixed by means of a mounting part (14) on which at least one spring element (20) is formed in order to fasten the wall element (5) between the wall retainers (6, 7) in a clamping manner. Thus, the drawer (19) can be assembled easily.