Sliding Door Fitting Connecting Rod Fixing Element
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sliding door fittings face issues with bending due to wind and thermal loads, leading to potential sealing and noise problems, and require additional components for installation which can be incorrectly positioned.
Innovation Solution
A sliding door fitting with a fixing part that is held on a connecting rod between two carriages, allowing for easy assembly and secure engagement with the running rail, featuring holding means to prevent horizontal movement and lateral projections to prevent lifting, ensuring reliable fixation without additional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a sash positioner is mounted on a downward-facing groove in the frame profile to prevent horizontal deflection, then the frame profile is secured against bending, but the device complexity increases due to additional components that must be supplied and installed separately
Solution Approach 1:
The fixing element is integrated into the connecting rod as a single component, eliminating the need for separate sash positioners that must be mounted on frame profiles. The fixing element is held on the connecting rod between the first and second carriages, combining the stabilization function with the existing connecting rod structure, thereby reducing installation complexity while maintaining frame profile stability
Solution Approach 2:
The connecting rod is given multiple functions: it not only connects the carriages but also holds the fixing element that secures the frame profile against bending. This multi-functional design eliminates the need for separate stabilization components, reducing both device complexity and installation steps while maintaining the stabilizing effect
2Stability of the object's composition
If a track engagement element is mounted on a downward-facing groove to prevent horizontal deflection, then the frame profile is secured against bending, but incorrect positioning can lead to functional impairments such as sealing issues or grinding noises
Solution Approach 1:
The fixing element is designed to be self-positioning through its interaction with the connecting rod and guide element. The guide element on the connecting rod limits deflection of the rod itself, which in turn positions the fixing element correctly without requiring manual adjustment. This self-positioning mechanism ensures reliable sealing and prevents grinding noises by eliminating incorrect positioning, while the fixing element simultaneously provides the necessary stabilization against horizontal deflection
3Ease of operation
If the fixing element is held on the connecting rod between carriages, then installation is simplified and positioning is ensured, but the fixing element must be securely attached to prevent lifting under load
Solution Approach 1:
The fixing element is designed with laterally projecting projections that extend in a direction perpendicular to the main load direction. These projections engage with corresponding features on the connecting rod to prevent lifting under vertical load, while the primary attachment mechanism remains simple for installation. This dimensional approach to attachment ensures both ease of installation and sufficient attachment strength under various loading conditions
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A sliding door fitting (1) comprises a track (17), a first carriage (2), and a second carriage (12), between which a connecting rod (8) is arranged, each carriage (2, 12) being movable along the track (17) and having a support element (3, 13) that is movable between a raised and a lowered position to hold or fix a sliding leaf (10) along a track (17), and a fixing element (20) that, in a lowered position of the sliding leaf (10), at least partially engages or surrounds the track (17) for fixing, the fixing element (20) being held on the connecting rod (8). This allows the fixing element (20) to be easily mounted.