Angled Rail Parting Plane for Smooth Sliding Door Fitting
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Solution Overview
Problem
Existing sliding door fittings experience unevenness and abrupt transitions at joints, leading to a rough sliding motion and installation complexities, particularly when profiles with raceways are not adjacent.
Innovation Solution
A sliding door fitting with rail parts forming a running rail where the parting plane at the butt connector is angled between 10° to 60°, preferably 45°, allowing continuous weight transfer and support through a butt connector with adjustable support parts, ensuring smooth movement and easy installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the parting plane between rail parts is arranged perpendicular to the longitudinal direction of the running rail, then the assembly is simple and straightforward, but the roller experiences abrupt transitions and unevenness when moving over the joint, resulting in rough sliding motion
Solution Approach 1:
The parting plane between the rail parts is arranged at an angle (10° to 60°) to the longitudinal direction of the running rail instead of being perpendicular. This asymmetric arrangement allows the roller to gradually transition from one rail part to the other, distributing the load continuously and eliminating abrupt transitions, thereby achieving smooth sliding motion.
Solution Approach 2:
The solution introduces an angular dimension to the parting plane arrangement. By tilting the parting plane relative to the longitudinal axis of the rail, the transition area is extended in the longitudinal direction, allowing the roller to move smoothly across the joint rather than encountering a sudden step.
2Adaptability or versatility
If a profile connector is used to support profiles with adjacent tracks, then alignment is improved, but the connector is not suitable for profiles where tracks are not adjacent and requires complex adaptations
Solution Approach 1:
The butt connector is designed with a universal parting plane angle that can be applied to various profile configurations regardless of whether the tracks are adjacent or not. The angled parting plane design works for different track arrangements, making the connector versatile and eliminating the need for specialized designs for different profile types.
Solution Approach 2:
The connector design separates the support function into distinct support parts that can individually adapt to different track configurations. This segmentation allows each support element to be optimized for its specific tracking while maintaining overall compatibility with various profile types.
3Ease of operation
If the parting plane is angled to improve weight transfer, then sliding smoothness is enhanced, but the manufacturing and assembly precision requirements increase
Solution Approach 1:
The parting plane angle is specified within a range (10° to 60°) rather than requiring a single precise value. This parameter range provides manufacturing tolerance while still achieving the functional benefit of smooth weight transfer. The optimal angle can be selected based on specific application requirements within this range.
Data Source
Figure 1
Figure 2A~2B
Figure 2C
AI summary
A sliding door fitting comprises a guide rail (5) formed from at least two rail sections (5a, 5b), on which at least one track (7, 8) is formed for at least one roller (31) and/or a sliding element of a running section (30) for moving a sliding door (3). A butt connector (10) is arranged between the at least two rail sections (5a, 5b), wherein a separating plane (50) of the at least two rail sections (5a, 5b) in the area of the butt connector (10) runs at an angle of at least 10° perpendicular to the longitudinal direction of the guide rail (5). This allows a roller to move across the joint of the two rail sections (5a, 5b) with low noise. A method for mounting a sliding door fitting is also provided.