Pull-Out Furniture Guide Rail Support for Smooth, Tip-Free Extension
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Furniture pull-out guides face challenges in achieving low-friction, play-free movement while preventing tipping, especially when fully extended, while also being cost-effective to manufacture and assemble.
Innovation Solution
A furniture pull-out guide with a guide rail having a T-shaped or triangular cross-section and equipped with separate fastening elements and a support device, such as rollers or rigid slides, that provides stable vertical support and horizontal guidance, allowing for efficient production and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed support device is used in the front end area of the guide rail, then vertical support stability is improved, but device complexity increases
Solution Approach 1:
The support device is divided into a stationary support component fixed to the guide rail and a movable guide component that slides along the guide rail. This segmentation allows the stationary part to provide stable vertical support while the movable part provides guidance, resolving the contradiction between stability and complexity.
Solution Approach 2:
A guide device acts as an intermediary between the stationary support and the running rail. This intermediary component provides horizontal guidance while the stationary support handles vertical loading, allowing both functions to be performed efficiently without excessive complexity.
2Ease of operation
If rollers are used in the support device, then friction is reduced, but manufacturing cost increases
Solution Approach 1:
Rollers are used only in the front end area where vertical support is critical, while other areas may use simpler sliding contacts. This local application of rolling elements provides low-friction support where needed without requiring rollers throughout the entire guide mechanism, balancing performance and cost.
3Ease of manufacture
If the guide device is made short, then material cost is reduced, but guidance precision may be compromised
Solution Approach 1:
The guide device utilizes the vertical dimension by engaging with the T-shaped or triangular cross-section of the guide rail. This dimensional approach allows effective guidance with a compact horizontal footprint, maintaining precision while reducing material usage and cost.
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 solution results in a low-friction, smooth-running guide that prevents tipping and is cost-effective to produce, with the support device forming an assembly unit that can be easily fixed to the guide rail, optimizing material usage and reducing production costs.
Implementation Method 1
The support device consists of one or more rollers. The support of the running rail via one or more rollers results in a very low-friction and smooth-running guide
Data Source
Figure 1~3
Figure 4~7
Figure 8~12
AI summary
The guide (1) has a guide rail (2) fastened to a side wall of a furniture body. A running rail (3) is coupled with a pull-out furniture section and mounted on the guide rail. The running rail is vertically supported in a front end region of the guide rail by a support device (4). The running rail is horizontally guided within a displacement region relative to the guide rail by a guide device (5) i.e. ball cage. The guide device is arranged on the running rail and is displaceable in relation to the running rail. The support device together with rollers or sliding pieces forms a mounting unit.