Furniture Sliding Door Guide Device with Elastic Retaining Parts
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Solution Overview
Problem
Existing guide devices for sliding furniture doors often result in noise and vibrations due to changes in torque when opening and closing, which disrupt the operation and user experience.
Innovation Solution
A guide device with a rail system featuring front and rear rollers mounted without play on dedicated running surfaces, using elastic holding parts to absorb tilting moments and prevent contact changes, thus eliminating noise and vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the guide carriages are guided in U-profile rails with parallel profile sections, then the coupling between guide carriages and guide rails is maintained, but the rollers alternate contact with upper or lower profile sections causing noise and vibrations
Solution Approach 1:
The running rail is segmented into two separate running surfaces (first and second running surfaces) positioned at different heights. The roller is divided into two separate rollers (first and second rollers), each contacting one running surface. This segmentation prevents alternating contact and eliminates the causes of noise and vibrations while maintaining coupling stability.
Solution Approach 2:
The retaining part acts as an intermediary component that connects the roller to the guide carriage and provides elastic retention. It maintains constant contact between the rollers and running surfaces, absorbing tilting moments and preventing play, thereby eliminating noise and vibrations without compromising coupling reliability.
2Ease of operation
If the transverse carriage is deflected according to the curve of the guide rail, then the sliding door can be moved laterally, but torque changes cause the guide carriages to tilt and rotate
Solution Approach 1:
The retaining part provides elastic retention that counteracts tilting moments and torque changes during transverse carriage deflection. This elastic counteraction maintains guide carriage stability while allowing the sliding door to be moved laterally along the curved guide rail path.
Solution Approach 2:
The system allows for parameter changes in the form of elastic deformation of the retaining part, which absorbs torque variations and tilting moments. This enables smooth lateral movement of the sliding door while maintaining guide carriage stability through controlled elastic parameter changes.
3Adaptability or versatility
If the rollers are held between parallel profile sections, then they can roll on either upper or lower section depending on applied torque, but this causes alternating contact and disruptive noises
Solution Approach 1:
Instead of a single roller contacting a U-profile rail, the solution segments the system into two separate rollers and two separate running surfaces. Each roller maintains constant contact with its designated running surface, eliminating alternating contact and the associated noise and vibrations while preserving adaptability through the elastic retaining part.
Solution Approach 2:
The invention inverts the conventional approach by having the retaining part actively maintain constant roller-to-rail contact rather than allowing the roller to passively follow the U-profile geometry. This inversion ensures continuous contact on fixed running surfaces, preventing alternating contact and harmful noises.
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 effectively absorbs tilting moments and loads without causing noise or vibrations, ensuring smooth operation of sliding doors and maintaining the stability of the guide mechanism.
Implementation Method 1
The guide device (1) is intended for a piece of furniture with at least one sliding door (91), which is held by a guide mechanism by means of a drive frame (4), which is guided in a rail device (2) comprising a front running rail (21) and a rear running rail (22), which run parallel to the front of the piece of furniture, as well as a guide rail (20); which has at least one front running roller (13) on the front of the drive frame (4), which bears against the front running rail (21); which has at least one rear running roller (14) on the rear of the drive frame (4), which bears against the rear running rail (22); and which carries a slidably mounted transverse drive (12), which is connected to the at least one sliding door (91) and has a guide element (16) which is guided in the guide rail (20). At least two corresponding front-facing rollers or at least one pair of rear-facing rollers are held without play on their respective front-facing or rear-facing guide rails by means of front-facing or rear-facing retaining parts (5, 6).
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3
AI summary
The guide device (1) is provided for a piece of furniture (9) with at least one sliding door (91) which is held by a guide carriage (11) comprising a carriage frame (4); which is guided in a rail device (2) comprising a front running rail (21) and a rear running rail (22) that run parallel to the front of the piece of furniture (9), as well as a guide rail (20); which has at least one front roller (13) on the front of the carriage frame (4) that bears against the front running rail (21); which has at least one rear roller (14) on the rear of the carriage frame (4) that bears against the rear running rail (22); and which carries a slidably mounted transverse carriage (12) which is connected to the at least one sliding door (91) and has a guide element (16) that is guided in the guide rail (20).According to the invention, at least two corresponding front rollers (131, 132) are held without play on the associated front guide rail (21) by means of front retaining parts (5; 51, 52) which are attached to the running gear frame (4), or at least two corresponding rear rollers (141, 142) are held without play on the associated rear guide rail (22) by means of rear retaining parts (6; 61, 62) which are attached to the running gear frame (4).