Adjustable Sliding Door Guide Element for Furniture

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Solution Overview

Problem

Existing guide devices for sliding elements in furniture face challenges such as non-adjustable height, leading to deep grooves that consume more material and cause friction noise, and adjustable mechanisms that result in rubbing issues during assembly.

Innovation Solution

A guide device with a transversely adjustable guide element using an actuating device that moves the guide element away from the groove bottom, allowing for tolerance compensation and precise distance setting, reducing groove wall length and minimizing friction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the groove is made deep to ensure lateral overlap of the guide element for stable guidance, then the guidance stability is improved, but the material consumption increases and the visual appearance deteriorates

Engineering Contradiction:
Improveguidance stabilityVSAvoidmaterial consumption
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The guide element is made height-adjustable via an adjustment mechanism, allowing it to be positioned at different heights within the groove. This dynamic adjustment capability enables the guide element to achieve stable lateral guidance with shorter groove walls, as the optimal position can be found without requiring excessive groove depth. The adjustability transforms a static structure into a dynamic one that can adapt to minimize material usage while maintaining guidance stability.

Inventive Principle:
Principle #15Dynamics

2Quantity of substance

If the guide element is made height-adjustable to reduce groove wall length, then the material consumption is reduced, but the assembly complexity increases

Engineering Contradiction:
Improvematerial consumptionVSAvoidassembly complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The adjustment mechanism is designed to be operated by the installer during assembly, allowing on-site adjustment of the guide element height. This self-adjusting capability eliminates the need for complex pre-adjustment procedures or specialized tools, enabling the installer to optimize the guide element position directly during installation. The mechanism serves itself by providing the adjustment function that would otherwise require complex external adjustment systems.

Inventive Principle:
Principle #25Self-service

3Productivity

If the projection is positioned in the groove during assembly, then the guide element can be installed, but rubbing against the groove floor occurs causing sliding noises and higher operating forces

Engineering Contradiction:
Improveassembly speedVSAvoidfriction noise
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The guide element incorporates an adjustment mechanism that allows it to be positioned at different heights within the groove. During assembly, the guide element can be initially placed in the groove for quick installation, then subsequently adjusted to an optimal height position that prevents contact with the groove floor during operation. This dynamic adjustment capability eliminates the rubbing and friction noise problem while maintaining assembly efficiency.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3464767B1Guiding system for a sliding door element, furniture and process for the mounting of the sliding element to the furniture
Publication Date: 2020.05.13 HETTICH HEINZE GMBH & CO KG
  • EP3464767B1 patent drawingFigure 1~2
  • EP3464767B1 patent drawingFigure 3~4
  • EP3464767B1 patent drawingFigure 5A~5B

AI summary

The invention relates to a guide device for a sliding element (3, 4) comprising a guide rail (6) having at least one groove (60, 61) into which a guide element (8, 9, 9') that can be secured to a sliding element (3, 4) can be introduced, wherein the guide element (8, 9, 9') is retained on a holder (10) such that it can be adjusted towards a base of the groove (60, 61) transverse to the longitudinal direction of the guide rail (6) and it can be secured in different positions relative to the base of the groove (60, 61), and an actuation device (20) is provided in order to bring the guide element (8, 9, 9') from a moveable adjustment position into a secured position, wherein the guide element (8, 9, 9') can be moved from a position on the base of the groove (60, 61) away from the base of the groove (60, 61) via the actuation device (20), in order to secure the guide element (8, 9, 9') at a distance from the base of the groove (60, 61). The invention also relates to an item of furniture and a method for assembling a sliding element (3, 4).