Spring-Loaded Furniture Drive with Automatic Mechanical Deactivation
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Solution Overview
Problem
Existing spring-loaded drive devices for movable furniture parts require manual deactivation and reactivation, which is time-consuming and complex, especially when retrofitting with additional drive mechanisms, necessitating removal and reinstallation.
Innovation Solution
A mechanical deactivation device that automatically switches between active and inactive positions, allowing for reversible deactivation without manual operation, enabling seamless integration with new drive mechanisms during normal use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a spring-loaded drive device is manually deactivated and reactivated, then the drive device can be switched off when not in use, but the process is time-consuming and complex requiring removal and reinstallation
Solution Approach 1:
The deactivation device is designed to automatically switch between active and inactive positions based on the movement state of the movable furniture part. During initial movement after installation, the system self-activates the drive device, and during subsequent movements, it self-deactivates, eliminating the need for manual intervention and reducing time loss.
Solution Approach 2:
The drive device transitions from a static on/off state to a dynamic state that automatically adjusts based on movement detection. The system uses the movement itself as the triggering mechanism for state changes, making the deactivation and reactivation process automatic rather than manual.
2Adaptability or versatility
If a mechanical deactivation device is installed to allow reversible deactivation, then the drive device can be deactivated without removal, but the device complexity increases
Solution Approach 1:
The deactivation function is merged with the existing drive device structure. The coupling element, holder, and spring are integrated into the drive mechanism itself, allowing the deactivation capability to be added without requiring a completely separate system, thus limiting the increase in overall complexity.
Solution Approach 2:
The mechanical deactivation device serves multiple functions: it enables reversible deactivation, automatically activates during initial movement, and automatically deactivates during subsequent movements. This multi-functionality is achieved through a relatively simple mechanical structure that leverages the existing movement patterns of the furniture part.
3Productivity
If automatic mechanical switching is implemented during initial movement, then no separate work step is necessary for switchover, but the switching mechanism becomes more complex
Solution Approach 1:
The system is pre-configured with the coupling element and holder in specific positions that enable automatic activation during the first movement after installation. The spring is pre-loaded to provide the necessary force for state changes, so that when movement occurs, the switching action happens automatically without requiring additional steps or complex control mechanisms.
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
Facilitates efficient and cost-effective deactivation and reactivation of spring-loaded drive devices, eliminating the need for manual intervention and simplifying the process of retrofitting or using additional drive mechanisms.
Implementation Method 1
a spring (12) arranged in the drive device (10), whose force action in a released state of the spring (12) causes the driver (11) to move back along the guideway (13) into the initial position
Data Source
Figure 1
Figure 2
Figure 3~5
AI summary
Spring-loaded drive device (10) for a movable furniture element (101), especially a drawer (102), comprising a mechanical deactivation device (1) with which the drive device (10) can be reversibly deactivated.