Drive devices with synchronization device for a movable furniture part
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Solution Overview
Problem
Existing furniture drive systems often experience issues with synchronization, leading to slanted or stuck drawers due to asynchronous movement of drive devices, which can result in operational failures and inability to secure locking or ejecting mechanisms.
Innovation Solution
A correction device is introduced to synchronize the positions of two drive devices by detecting false positions and triggering corrective movements, ensuring both devices are in the same position during the motion sequence, particularly using a synchronizing rod with rotatable members and coupling elements to maintain holding torque and prevent undesired movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two drive devices are provided on opposing side areas of the drawer, then the drawer can be securely detected and ejected from any position, but the drive devices may assume different positions during movement causing slanted or stuck drawer
Solution Approach 1:
A synchronizing device acts as an intermediary between the two drive devices, mechanically coupling them through a synchronizing rod with coupling elements. This mediator ensures that movements of one drive device are transmitted to the other, maintaining synchronized positions and preventing the drawer from becoming slanted or stuck.
2Reliability
If a synchronizing device is used to synchronize movements of drive devices, then both-sided equal motion sequence is guaranteed, but the complexity of the device increases
Solution Approach 1:
The synchronizing device is segmented into modular components: a synchronizing rod with multiple coupling elements, each independently connectable to drive devices. This segmentation allows the system to achieve synchronization functionality while maintaining ease of installation and adjustment, reducing overall system complexity.
Solution Approach 2:
The synchronizing rod serves multiple functions simultaneously: it transmits movements between drive devices, maintains synchronized positioning, and provides a mechanical coupling that works across different operational states. This multi-functionality reduces the need for additional separate components.
3Reliability
If the whole unlocking process and parts of the ejection process are synchronized, then secure locking and joint ejecting are achieved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The synchronizing device utilizes the existing movement sequences of the drive devices during unlocking and ejection processes. The coupling elements automatically engage and transmit movements without requiring separate control mechanisms or additional actuation, allowing the system to self-synchronize during operation.
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 correction device improves operational reliability by ensuring both drive devices are synchronized, preventing errors and ensuring secure locking and ejecting functions, thus maintaining the intended functionality of the furniture.
Implementation Method 1
a contact surface between the first rod member and the second rod member is provided, wherein the first rod member can be frictionally engaged in the second rod member
Data Source
AI summary
An arrangement includes a first drive device for moving a movable furniture part, a second drive device for moving the same movable furniture part, and a synchronization device for synchronizing the two drive devices. The two drive devices can assume different positions during the movement of the movable furniture part. The arrangement also includes a correction device, by which both drive devices can be brought into the same position.