Furniture Guide Rail Parking Depression to Eliminate Rattling
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Solution Overview
Problem
Existing furniture guiding systems using load-transmitting rolling elements and guide rails often produce annoying rattling noises due to flattening of the rolling elements, which is not effectively addressed by previous solutions such as plastic jackets that eventually fail.
Innovation Solution
Designing the guide rail to be deformable at the parking position, forming a depression, while keeping the rolling element dimensionally stable, thereby avoiding the noise issue by not requiring the rolling element to pass through the depression area, and using materials like steel for the rolling elements and polyoxymethylene for the support structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the rolling element is used in the guide rail system, then the movable furniture part can be guided smoothly, but the rolling element flattens in the contact area with the raceway, producing rattling noise
Solution Approach 1:
The patent applies local quality by making the raceway deformable specifically in the parking position area while keeping other areas rigid. This localized deformability allows the raceway to form a depression that accommodates the rolling element without flattening, eliminating noise only where needed while maintaining structural integrity elsewhere.
Solution Approach 2:
Instead of making the rolling element deformable or adding protective layers to prevent flattening, the patent inverts the approach by making the raceway itself deformable. The rolling element remains dimensionally stable while the raceway adapts to its shape, reversing which component undergoes deformation.
2Reliability
If a plastic jacket is provided on the rolling element to prevent flattening, then the rolling element is protected, but the plastic jacket will burst sooner or later, failing to solve the problem permanently
Solution Approach 1:
The patent extracts the deformability requirement from the rolling element and transfers it to the raceway. By removing the need for the rolling element to be deformable or protected by additional layers, the solution eliminates the plastic jacket entirely, achieving permanent reliability without temporary protective measures.
Solution Approach 2:
The patent changes the material parameter of the raceway from rigid to deformable in the parking position area. This parameter change allows the raceway to permanently deform and form a depression that matches the rolling element's geometry, creating a noise-free interface without requiring protective jackets on the rolling element.
3Stability of the object's composition
If the rolling element is made harder than the raceway to prevent rolling element flattening, then the rolling element maintains its shape, but the raceway must be made softer, potentially reducing its structural stability
Solution Approach 1:
The patent applies local quality by making the raceway deformable specifically in the parking position area while keeping other areas rigid. This localized deformability allows the raceway to form a depression that accommodates the rolling element without flattening, eliminating noise only where needed while maintaining structural integrity elsewhere.
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
This solution eliminates the rattling noise by allowing the rolling element to move into or out of the depression without passing through it, providing a stable and quiet operation, and allows the user to feel the end position of the furniture part, enhancing the user experience.
Implementation Method 1
which has at least one, preferably essentially cylindrical, load-transmitting rolling element, wherein the at least one guide rail has at least one track on which the at least one load-transmitting rolling element is movably mounted
Implementation Method 2
In a parked position 108 of the rolling body 106, due to the loading of the rolling body 106, flattening can occur in the contact area of the rolling body 106 with the raceway 107
Implementation Method 3
If the rolling element 106 is now moved from the parked position 108 by rotating about the axis of rotation 133
Data Source
Figure 1
Figure 2a~2b
Figure 3a~4
AI summary
Arrangement (1) for guiding at least one movable furniture part (2), in particular at least one furniture door or at least one drawer, relative to a fixed furniture part (3), comprising - at least one guide rail (4), which is provided for being mounted on the fixed furniture part (3), and - at least one guide device (5), which can be coupled in particular to the at least one movable furniture part (2) and has at least one, preferably substantially cylindrical, load-transmitting rolling body (6), wherein the at least one guide rail (4) has at least one guide track (7), on which the at least one load-transmitting rolling body (6) is mounted in a movable manner, the at least one guide track (7) has at least one parking position (8, 9) for the at least one load-transmitting rolling body (6), and the at least one parking position (8, 9) corresponds to an end position of the at least one movable furniture part (2) relative to the fixed furniture part (3), wherein the at least one load-transmitting rolling body (6) and the at least one guide track (7) are designed, at least in the region of the at least one parking position (8, 9), such that the at least one guide track (7) can be deformed in this region, a depression (10) being formed in the process, and the at least one load-transmitting rolling body (6) is substantially dimensionally stable.