Sliding Door Fitting Synchronous Lifting Carriage Mechanism
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Solution Overview
Problem
Existing sliding door fittings in furniture are complex, noisy, and prone to vibrations during transition from transverse to parallel movement, causing disruptive noise and vibration issues.
Innovation Solution
A sliding door fitting design featuring guide and lifting carriages connected via traction means, with a control roller for harmonious movement, and optional damping elements to reduce noise and vibrations, allowing for customizable installation and easy conversion between hanging and standing systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex sliding door fittings are used to achieve flush sliding door systems, then the furniture quality and functionality are improved, but the structure becomes very complex and noise is generated
Solution Approach 1:
The sliding door fitting is divided into separate functional modules: guide carriages that move parallel to the main direction, lifting carriages that move perpendicular to the guide carriages, and connecting elements that join them. This segmentation allows each component to perform its specific function independently, simplifying the overall structure while maintaining the flush sliding door system functionality.
Solution Approach 2:
The connecting element serves multiple functions: it connects the guide carriages to each other, provides mounting points for deflection devices, and acts as a structural support for the sliding door. This multi-functionality reduces the number of separate components needed, thereby simplifying the overall fitting structure.
2Adaptability or versatility
If traditional sliding door fittings are used, then the sliding door can be moved from flush starting position to parallel position, but vibrations and noise are generated during the transition
Solution Approach 1:
Damping elements are incorporated into the connecting elements to beforehand cushion and absorb vibrations and noises that would occur during the transition from flush starting position to parallel position. This prevents the harmful vibrations and noise from being generated in the first place, while still allowing the full range of motion.
Solution Approach 2:
Deflection devices are introduced as intermediary components between the lifting carriages and the connecting elements. These deflection devices guide the lifting carriages smoothly and mediate the transition movement, reducing direct contact and friction that cause vibrations and noise during the position change.
3Ease of operation
If multiple control rollers are used on lifting carriages, then movement control is improved, but rolling noise increases
Solution Approach 1:
The control function is extracted from multiple rollers and concentrated into a single control roller on each lifting carriage. This single roller is strategically positioned and designed to provide sufficient control over the lifting carriage movement while minimizing contact points, thereby reducing rolling noise generation.
Solution Approach 2:
The control roller is designed with specific local qualities: it is positioned at a critical point on the lifting carriage where it can effectively control movement through interaction with the rail device's control contour. This localized control approach provides adequate movement control with minimal noise compared to distributed multiple rollers.
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 quieter, vibration-free sliding door system with a simpler structure, enabling flexible installation and customization to fit various furniture dimensions, while maintaining smooth operation and accessibility.
Implementation Method 1
the lifting carriages being connected to one another via at least one traction means in such a way that they can be displaced synchronously or in a sequence-controlled manner on the pushing devices
Implementation Method 2
a control roller is arranged on one of the lifting carriages, which is guided in a corresponding control contour of a rail device fixed to the body of the piece of furniture
Implementation Method 3
optional damping elements to reduce noise and vibrations
Data Source
Figure 1a
Figure 1b~1c
Figure 1d~1e
AI summary
Sliding door fitting for a piece of furniture for the movable arrangement of at least one locking element (7, 8), in particular a sliding door (7, 8), relative to a body (1) of the furniture, comprising at least one carriage arrangement (10, 11) with a first and second guide carriage (12a, 12b) movable parallel to a main direction of movement of the sliding doors (7, 8) and a first and second lifting carriage (18a, 18b) arranged on the guide carriage (12a, 12b) slidably via respective push devices (S1, S2), wherein the lifting carriages (18a, 18b) are connected to each other via at least one traction element (35, 36) in such a way that they can be moved synchronously or in a sequence-controlled manner on the push devices (S1, S2).