Buffering rebound synchronization device
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Solution Overview
Problem
Existing pressing rebound devices for bottom rails have complex structures, insufficient ejection force, limited ejection distance, and produce noise during operation, affecting user experience.
Innovation Solution
A bottom rail buffer rebound synchronization device with a synchronous linkage assembly, including rebound components with a fixed plate assembly, toggle block assembly, elastic sliding assembly, and synchronous sliding assembly, which reduces frictional pressure and enhances ejection tension and distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pressing rebound device is used for bottom rail, then the drawer can be automatically opened, but the structure becomes complex and the ejection force is insufficient
Solution Approach 1:
The patent combines the rebound component and buffer component into a single integrated assembly that shares common elements (fixed plate, toggle block, guide grooves). This merging reduces structural complexity while maintaining the automatic opening function through the coordinated interaction of the integrated components.
Solution Approach 2:
The integrated assembly performs multiple functions simultaneously: the rebound component provides ejection force for automatic opening, while the buffer component controls closing speed and reduces impact. The shared structural elements serve both rebound and buffer operations, reducing overall device complexity.
2Ease of operation
If a pressing rebound device is used for bottom rail, then the drawer can be unlocked and rebound, but the ejection distance is limited
Solution Approach 1:
The patent employs dynamic elements including a spring-based rebound mechanism that accumulates and releases energy, and a buffer mechanism with adjustable damping. The toggle block assembly dynamically transitions between locked and unlocked states, enabling greater ejection distance through controlled energy release and reduced friction during movement.
Solution Approach 2:
The buffer component allows adjustment of damping parameters to optimize the closing process, reducing frictional pressure and enabling smoother, longer ejection. The rebound force and buffer characteristics can be modified by changing spring constants or damping coefficients to achieve desired ejection distance.
3Ease of operation
If a pressing rebound device is used for bottom rail, then the drawer can be automatically opened, but significant movement noise is produced
Solution Approach 1:
The buffer component is designed to cushion the closing action before the drawer reaches the fully closed position. By providing controlled resistance during the closing process, the buffer reduces impact noise and vibration. The cushioning effect is activated in advance during the closing motion to prevent sudden impacts.
Solution Approach 2:
The patent converts the potentially harmful impact and friction during closing into beneficial controlled motion through the buffer mechanism. The friction that previously caused noise and wear is transformed into controlled damping force that reduces noise while maintaining the automatic opening function.
4Device complexity
If the rebound device operates with high frictional pressure, then the structure is simpler, but the drawer ejection becomes rough and noise increases
Solution Approach 1:
The patent introduces guide grooves and guide surfaces as intermediary elements between moving components. These guided pathways reduce direct friction between the toggle block and fixed plate by providing defined motion paths. The buffer component acts as an intermediary that mediates the closing force, converting high friction into controlled, lower-friction motion.
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 device achieves smoother drawer ejection with greater ejection tension and distance, reducing noise and improving user experience by minimizing frictional pressure and stabilizing the toggle block assembly.
Implementation Method 1
the elastic sliding assembly is provided with an elastic stopper... under a push of the elastic sliding assembly... under a pull of the elastic sliding assembly in a compressed state
Data Source
AI summary
A bottom rail buffer rebound synchronization device, including rebound components, and a synchronous linkage assembly provided between the rebound components. The rebound components include a fixed plate assembly, a toggle block assembly slidably provided on the fixed plate assembly, an elastic sliding assembly, and a synchronous sliding assembly. The elastic sliding assembly is provided with an elastic stopper that can be extended and retracted. The fixed plate assembly is provided with an orienteering protrusion, which forms a backward guide groove, a separation guide groove, a clamping groove position, a forward guide groove, and a reset guide groove with the fixed plate assembly. The elastic sliding assembly is slid in the backward guide groove, the separation guide groove, the clamping groove position, the forward guide groove, and the reset guide groove in a cycle manner.