Sliding Door Guide Compensation Mechanism
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Solution Overview
Problem
Existing arrangements for guiding sliding or folding-sliding doors on furniture walls face issues with tilting due to weight, leading to jamming and increased complexity, cost, and space requirements in cable pulling devices.
Innovation Solution
Incorporating a pivotal lever mechanism with hingedly interconnected levers and a simplified cable pulling device, which includes a single cable fixed to the carrier, a deflection device, and an adjustable tensioning mechanism, along with an equalization device to prevent jamming, reduces complexity and space while enhancing stability and rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cable pulling device with two mutually separate pulling cables and a synchronization device is used, then the sliding door or folding-sliding door can be guided along the furniture wall, but the construction becomes complicated and expensive
Solution Approach 1:
The patent combines two separate cable pulling devices into a single integrated cable pulling device that uses a single pulling cable. The synchronization function is integrated into the same mechanism that provides the pulling action, eliminating the need for a separate synchronization device. This merging reduces construction complexity while maintaining the reliability of door guidance.
Solution Approach 2:
The single pulling cable in the invention serves multiple functions simultaneously: it provides the pulling force for door movement, acts as a synchronization mechanism for coordinating the two guide systems, and maintains tension balance. This multi-functionality eliminates the need for separate dedicated synchronization cables and devices, simplifying the overall construction.
2Reliability
If a cable pulling device with a synchronization bar is used, then the door can be guided, but the fitment becomes difficult due to necessary manufacturing tolerances
Solution Approach 1:
The invention replaces the rigid synchronization bar with a dynamic cable-based system that can flexibly accommodate manufacturing tolerances and installation variations. The cable's flexibility allows for easier adjustment and fitment while maintaining synchronization functionality, making the installation process less demanding regarding precision.
Solution Approach 2:
The patent changes the physical state from rigid (synchronization bar) to flexible (cable), allowing for parameter adjustments in tension and positioning during installation. This enables easier fitment while maintaining the functional requirements for door guidance synchronization.
3Reliability
If a cable pulling device with winding devices is used, then the door can be guided, but a comparatively large amount of structural space is taken up
Solution Approach 1:
The invention extracts and eliminates the winding devices from the cable pulling system. Instead of using mechanical winding mechanisms to manage the cable, the system uses a simpler cable arrangement that does not require space-consuming winding components, thereby reducing the structural space required.
Solution Approach 2:
The patent employs a simpler, more compact cable pulling mechanism that sacrifices the long-term adjustability of winding devices for immediate space savings. The simplified cable system occupies less structural space while maintaining adequate functionality for door guidance.
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 provides improved rigidity and stability, reduces manufacturing costs, and simplifies the assembly process by minimizing structural space requirements and complexity, effectively preventing tilting and jamming of sliding doors.
Implementation Method 1
The at least one pivotal lever mechanism (17) includes at least two pivotal levers (17a, 17b) which are pivotable relative to each other upon a movement of the carrier (11) by the two guide systems (4, 6) along the furniture wall (3)
Implementation Method 2
The at least one cable pulling device (16) has a cable (20) which is fixed with both ends to the carrier (11)
Data Source
AI summary
An arrangement includes a first guide system and a second guide system at a vertical distance from the first guide system. The two guide systems each has a guide and a guide body mounted to be displaceable on the guide, a carrier on which a door is to be fastened and which can be connected to the two guide bodies of the guide systems, and a compensation device by which a tilt moment of the carrier, or of the door arranged thereon, about a tilt axis is compensated for by a restoring moment. The compensation device includes a cable pull device and a pivot lever mechanism. The pivot lever mechanism comprises at least two pivot levers connected to one another in an articulated manner and pivotable relative to one another during a movement of the carrier by the two guide systems along the furniture wall.