Sliding Door Fitting Connecting Rod Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sliding door fittings face challenges in flexible mounting of connecting rods between carriages due to complex assembly mechanisms and limited adjustability, which restricts their use across different profile geometries and load conditions.
Innovation Solution
A fitting design that allows the connecting rod to be fixed in multiple positions on each carriage, enabling flexible placement and adjustment, with a rectangular cross-section and adaptable locking mechanisms, such as bayonet locks and clamping devices, to accommodate various profile geometries and load requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a coupling rod with circular cross-section and threaded fastening mechanism is used, then the connecting rod can be securely fixed between carriages, but the installation space requirement increases and assembly complexity increases
Solution Approach 1:
The connecting rod is segmented with multiple openings at different positions along its length, allowing it to be fixed at multiple locations on the carriage. This segmentation enables flexible assembly without requiring complex fastening mechanisms, as the rod can be secured at any convenient position.
Solution Approach 2:
The connecting rod is designed with universal functionality by providing multiple openings that can accommodate different fixing positions and orientations. This multi-functionality allows the same rod to be used in various configurations depending on the specific installation requirements, eliminating the need for multiple specialized components.
2Ease of operation
If a coupling rod with toothing engagement is used, then assembly is simplified, but the manufacture complexity increases and the rod can only be fixed at a specific pitch
Solution Approach 1:
The connecting rod transitions from a static, fixed-pitch design to a dynamic, adjustable-position design. By providing multiple openings at different positions, the rod can be fixed at various locations along its length, allowing adaptation to different profile geometries and installation spaces while maintaining simple assembly through the same opening-based mechanism.
Solution Approach 2:
The fixing position parameter of the connecting rod is changed from a single fixed value to multiple discrete values. The rod can be secured at different positions along its length, enabling adjustment of the distance between carriages and adaptation to different installation requirements without complicating the assembly process.
3Device complexity
If the connecting rod position is fixed at a single location, then the structure is simpler, but the adaptability to different profile geometries and load conditions is reduced
Solution Approach 1:
The connecting rod structure is segmented with multiple openings distributed along its length, creating a simple yet versatile structure. Each opening represents a potential fixation point, allowing the rod to be adapted to different profile geometries and load conditions while maintaining overall structural simplicity.
Solution Approach 2:
The connecting rod achieves universal applicability through its multi-opening design, which allows it to function in various configurations. The same simple rod structure can be fixed at different positions to accommodate different profile geometries, installation spaces, and load requirements, eliminating the need for multiple specialized rod designs.
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3
AI summary
A fitting (1) for a sliding door, in particular a lift-and-slide door, comprises a first carriage (2) which is movable along a rail (21, 31, 41) via at least one roller (4), and a second carriage (3) which is movable along the rail (21, 31, 41) via at least one roller (5), wherein a leaf of the sliding door is supported on the at least two carriages (2, 3) and a connecting rod (9) is arranged between the first carriage (2) and the second carriage (3), which is fixed to the first carriage (2) via a first connecting device (10) and to the second carriage (3) via a second connecting device (12), wherein the connecting rod (9) can be fixed at least at two different positions at least on the first connecting device (10).