Drawer Guide Coupling with Spring Pressing for Precise Adjustment

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Solution Overview

Problem

Conventional devices for adjusting the position of furniture pull-outs relative to guide units in furniture bodies suffer from play in the height direction, which hinders precise adjustment and reliability.

Innovation Solution

A device with a coupling member made of plastic and integrally formed pressing means, allowing for relative mobility in the height direction and featuring a side adjustment unit with an actuating element and coupling member for lateral adjustment, along with a height adjustment unit using a wedge-shaped ramp, enables precise adjustment of the furniture pull-out's position without hindering the adjustment process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional adjusting devices are used to adjust the position of furniture pull-out relative to guide unit, then adjustment functionality is provided, but play in height direction occurs which hinders reliable and precise adjustment

Engineering Contradiction:
Improveadjustment precisionVSAvoidsystem reliability
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The pressing means are designed with resilient properties allowing dynamic adaptation. The resilient pressing means can be overpressed during height adjustment to eliminate play, then maintain continuous contact to secure the adjusted position, providing both adjustment freedom and position security.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The pressing force parameter is made variable through the resilient design. During adjustment, the pressing means can be overpressed to change the contact state and eliminate play, then return to normal pressing force to maintain the adjusted position without creating permanent constraints.

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If pressing means are used to connect device to guide unit, then connection stability is improved, but adjustment process may be hindered if pressing is too strong

Engineering Contradiction:
Improveconnection stabilityVSAvoidadjustment ease
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The resilient pressing means provide dynamic connection stability. During adjustment operations, the resilient design allows temporary overpressing to overcome resistance and eliminate play, while maintaining stable connection throughout the adjustment process without permanent loss of ease of operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The resilient pressing means act as a cushioning element that anticipates adjustment needs. The resilient properties allow the pressing means to be temporarily overpressed during adjustment without causing damage or permanent deformation, providing a buffer that facilitates easy adjustment while maintaining stable connection.

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

The device reduces inconvenient play in the furniture pull-out guide unit system, allowing for reliable and precise height and lateral adjustments, ensuring uniform gap widths and joint patterns.

Implementation Method 1

the pressing means have at least one spring element (71) which projects away from the coupling member (28) and is supported on the support surface of the guide unit when the device (11) is in use

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

The pressing means are resiliently pretensioned

Methodology Applied
Scientific EffectSpring force: Spring

Data Source

PatentEP3153066B1Device for the releasable connection of a furniture drawer with a guide unit in a furniture body of a piece of furniture which can be guided using a guide unit
Publication Date: 2020.01.15 GRASS GMBH
  • EP3153066B1 patent drawingFigure 1
  • EP3153066B1 patent drawingFigure 2
  • EP3153066B1 patent drawingFigure 3

AI summary

In a device for the detachable connection of a furniture pull-out that is movably guided in a furniture body of a piece of furniture via a guide unit to the guide unit, with a base part (12) on which an adjusting device (23) belonging to the device (11) and comprising several components that can be moved relative to one another is arranged through which a position of the furniture pull-out connected to the guide unit can be adjusted relative to the guide unit in at least one spatial direction with respect to the guide unit, the adjusting device (23) has spring-loaded pressing means (70), whereby the device (11) is in an assembled state of use the guide unit is pressed.