Furniture Guide Rail Attachment With Adjustable Contact Alignment

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Solution Overview

Problem

Existing devices for attaching guide units to furniture lack simplicity and effectiveness in positioning, often resulting in lateral play and instability during movement guidance.

Innovation Solution

A device with adjustable contact sections mounted on a movement rail, allowing independent positioning to align with the rail, and featuring a lower edge design that distributes force evenly and adapts to the rail's shape, ensuring stable and precise alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a simple attachment device is used, then the device complexity is reduced, but the positioning precision and stability deteriorate due to lateral play

Engineering Contradiction:
Improveattachment device simplicityVSAvoidpositioning precision
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The contact sections are made adjustably mounted on the device, allowing their positions to be changed independently of one another. This enables the device to adapt to different movement rail positions and widths, achieving precise positioning without requiring a completely different device design for each application scenario.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The positions of the contact sections can be adjusted independently to change the geometric parameters of the attachment device. This allows the device to accommodate various movement rail widths and positions by modifying the distance and location of the contact sections, thereby maintaining positioning precision across different applications.

Inventive Principle:
Principle #35Parameter changes

2Device complexity

If fixed contact sections are used, then the device structure is simplified, but the adaptability to different movement rail positions and widths deteriorates

Engineering Contradiction:
Improvedevice structureVSAvoidadaptability to different rail positions
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The contact sections are designed with adjustable mounting mechanisms that allow their positions to be modified independently. This dynamic capability enables the same device structure to adapt to different movement rail positions and widths without requiring multiple specialized devices.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The attachment device is designed to perform multiple functions by adjusting the contact section positions. A single device can accommodate various movement rail configurations, making it a universal solution that replaces the need for multiple fixed-design devices for different applications.

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

3Manufacturing precision

If the contact sections are positioned precisely, then the lateral play is reduced, but the adjustment complexity increases

Engineering Contradiction:
Improvelateral play reductionVSAvoidadjustment mechanism
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The adjustment mechanism is segmented into independent contact section adjustments rather than a complex overall repositioning system. Each contact section can be adjusted independently, simplifying the adjustment process while achieving precise positioning to minimize lateral play.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP2959802B1Device for applying a guide unit to a piece of furniture
Publication Date: 2018.03.14 GRASS GMBH
  • EP2959802B1 patent drawingFigure 1
  • EP2959802B1 patent drawingFigure 2~3
  • EP2959802B1 patent drawingFigure 4

AI summary

A device (1) for attaching a guide unit (18) to a first furniture part (17) which is movably guided relative to a second furniture part is proposed, wherein the guide unit (18) comprises a body rail (18a) arranged on the second furniture part and a movement rail (2) arranged on the first furniture part (17).According to the invention, two contact sections (10, 15) are arranged at a distance from each other on a lower edge (3g, 8) of the device which is intended for arrangement on the motion rail (2), wherein each of the contact sections (10, 15) is formed on a side facing the other contact section (10, 15), so that the motion rail (2) can be arranged between the contact sections (10, 15) and wherein at least one of the contact sections (10, 15) is adjustably mounted on the device such that a position of the contact section (10, 15) can be changed in order to align the first furniture part (17) in a horizontal direction with respect to the motion rail (2) in the assembled state.