Compact Bidirectional Damping Device for Center Sliding Doors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing center door damping and closing devices are not compact in design, leading to potential damage from rapid closing and limited directional operation, as they require movement components perpendicular to the device's longitudinal direction.
Innovation Solution
A combined damping and closing device with two driver slides that can be coupled to a driver element, featuring a cylinder-piston unit and spring energy storage, allowing the door to open and close in both directions while avoiding damage from overload, and eliminating the need for movement components perpendicular to the device's longitudinal direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional damping and closing devices are used for center doors, then the door can be closed and damped, but the device requires movement components perpendicular to the longitudinal direction, leading to non-compact design and increased space requirements
Solution Approach 1:
The device is divided into two separate drive slides (first drive slide and second drive slide) that can be independently coupled to the driver element. Each drive slide handles one direction of movement, allowing the device to achieve compact longitudinal design while maintaining bidirectional functionality through modular segmentation
Solution Approach 2:
The invention transitions from perpendicular movement components to longitudinal movement components by arranging both drive slides to move along the longitudinal axis of the device. This dimensional reorientation eliminates the need for perpendicular movement mechanisms, achieving compact design in the transverse direction while maintaining full closing and damping functionality
2Reliability
If the device allows bidirectional opening and closing, then operational safety is improved by preventing damage from rapid closing, but the mechanism requires complex engagement and disengagement of drive slides
Solution Approach 1:
The drive slides are designed with dynamic coupling and decoupling capabilities through positive locking mechanisms. The driver element can automatically engage with the appropriate drive slide based on the direction of movement, and the system dynamically transitions between coupled and decoupled states during operation, enabling bidirectional functionality with relatively simple mechanisms
Solution Approach 2:
The device automatically selects which drive slide to engage based on the direction of door movement. The positive locking mechanism self-activates when the driver element contacts the appropriate drive slide, eliminating the need for external control systems or complex actuation mechanisms to switch between directions
3Manufacturing precision
If the device uses positive locking and force locking mechanisms, then positioning accuracy is improved for precise door closing, but the mechanism requires additional components and complexity
Solution Approach 1:
The positive locking and force locking mechanisms are merged into a single integrated system where the same drive slide components serve both locking functions. The positive locking provides positioning accuracy while the force locking maintains engagement, and both functions are achieved through the same mechanical elements rather than separate independent mechanisms
Data Source
Figure 1
Figure 2~3
Figure 4~6
AI summary
The invention relates to a combined damping and closing device for a center door, comprising a housing in which a drive element is movable between two parking positions. Within the housing, two drive slides, which can alternatively be positively coupled to the drive element, are guided between a force-locked and/or positively locked waiting position and a force-locked and/or positively locked end position. A cylinder-piston unit, loadable by means of both drive slides, is axially displaceably mounted within the housing. Each drive slide either has a spring receptacle or is coupled or couplingable to a spring slide having a spring receptacle. Furthermore, a spring energy storage device is held in both spring receptacles. The present invention provides a compact damping and closing device.