Furniture Door Guide Rail With Overload-Absorbing Cable Mount
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Solution Overview
Problem
Existing furniture guiding arrangements face issues with ropes breaking or connections loosening due to abrupt stops, leading to overload situations.
Innovation Solution
A fastening device with a bearing device allowing limited movement of the first rope relative to the stationary part, incorporating an elastic means to absorb forces and a slide with a notch for easier movement, and additional guide rails with synchronized movements to distribute overload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the first cable is rigidly attached to the stationary furniture part, then the connection is strong and stable, but the cable breaks or connection loosens under overload conditions
Solution Approach 1:
The fastening device incorporates a bearing device that enables dynamic adjustment of the cable attachment point along the guide rail. This dynamic positioning allows the system to adapt to overload conditions by redistributing forces, preventing both cable breakage and connection loosening while maintaining reliable attachment under varying load conditions.
Solution Approach 2:
The system changes the positional parameter of the cable attachment point on the guide rail through the bearing device and slide mechanism. By adjusting this position, the system optimizes force distribution and prevents overload damage, transforming a static rigid connection into an adaptable system that maintains reliability across different operational states.
2Reliability
If the cable attachment point is fixed, then the structure is simple and stable, but it cannot compensate for sudden load increases during abrupt stops
Solution Approach 1:
The bearing device acts as an intermediary element between the cable and the stationary furniture part. It provides a controlled degree of freedom through the slide mechanism, allowing the attachment point to move along the guide rail. This intermediary structure enables overload compensation without requiring complex active control systems, maintaining reasonable device complexity while achieving reliability.
3Reliability
If additional guide rails and guide devices are added to distribute overload, then the load distribution improves, but the device complexity increases
Solution Approach 1:
The system divides the load-bearing function across multiple guide rails and guide devices, with each component handling a portion of the total load. This segmentation allows better load distribution and prevents any single cable from experiencing excessive overload, while the modular nature of the segmented system makes the increased complexity manageable and maintainable.
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
Prevents rope breakage and connection loosening by compensating for overloads through relative movement and elastic absorption, ensuring smooth deceleration and reduced stress on individual components.
Implementation Method 1
the at least one fastening device includes at least one elastic means for absorbing forces acting on the at least one first rope
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
Arrangement (1) for guiding a movable furniture part (2), in particular at least one furniture door, relative to a stationary furniture part (3), comprising at least one guide rail (4, 17), in particular to be attached to the stationary furniture part, at least one guide device (5, 18) movably mounted on the at least one guide rail (4, 17), in particular to be coupled to the movable furniture part (2), and at least one first cable (6, 19), which is attachable on the one hand to the stationary furniture part (3) and is coupled to the at least one guide device (5, 18) on the other hand, wherein at least one fastening device (7, 20) is provided for fastening the at least one first cable (6, 19) to the stationary furniture part (3), wherein the at least one fastening device (7, 20) has a bearing device (8) which is designed such that the at least one first cable (6,19) is mounted in a manner that allows limited movement relative to the stationary furniture part (3), at least in the event of an overload.