Lift-Slide Coupling Device Height Adjustment
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Solution Overview
Problem
Existing lift-slide door and window fittings face challenges with rigid connecting rod installations, leading to dimensional inaccuracies and increased component counts, which complicate assembly and increase costs, especially with multi-chamber profiles.
Innovation Solution
A coupling device with a height adjustment mechanism using adapter pieces that can be continuously adjusted, allowing the connecting rod to move vertically and compensate for dimensional inaccuracies, while maintaining a compact and cost-effective design by using a dovetail or cylindrical connection with secure actuation through an adjusting screw.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid connecting rod is used to connect carriages, then the structural stability is improved, but the adaptability to different groove dimensions and weight distributions deteriorates
Solution Approach 1:
The connecting rod is transformed from a rigid fixed structure to a dynamically adjustable structure. The height adjustment device allows the connecting rod's position to be changed continuously, enabling adaptation to different groove dimensions and weight distributions while maintaining structural stability during operation.
Solution Approach 2:
The vertical position parameter of the connecting rod is made variable through the height adjustment device. By changing this parameter, the system can adapt to different installation conditions and weight distributions without requiring multiple fixed designs, thus improving versatility while maintaining stability.
2Stability of the object's composition
If multiple carriages are used to support the sliding sash, then the weight distribution is improved, but the device complexity increases due to rigid mounting requirements
Solution Approach 1:
The height adjustment device serves multiple functions: it adjusts the vertical position of the connecting rod, compensates for dimensional inaccuracies, and distributes weight evenly across carriages. This single device handles multiple requirements, reducing overall system complexity despite the presence of multiple carriages.
Solution Approach 2:
The adjustable nature of the height adjustment device allows the system to dynamically adapt to different weight distributions and installation conditions, simplifying the overall design by eliminating the need for multiple fixed configurations.
3Manufacturing precision
If fixed height adjustment positions are provided for coupling devices, then the manufacturing precision is improved, but the adaptability to different installation conditions deteriorates
Solution Approach 1:
The height adjustment device transforms fixed precision mounting points into dynamically adjustable positions. The mechanism maintains manufacturing precision through controlled adjustment while adapting to various installation conditions, effectively combining precision with versatility.
Solution Approach 2:
The height adjustment device is divided into segments (adapter pieces) that can be independently positioned and adjusted. This segmentation allows for precise positioning at multiple discrete heights while maintaining the ability to adapt to different installation requirements.
4Device complexity
If conventional coupling devices are used, then the number of components is reduced, but the ability to compensate for dimensional inaccuracies deteriorates
Solution Approach 1:
The height adjustment device introduces a variable parameter (vertical position of connecting rod) that can be changed to compensate for dimensional inaccuracies in the groove or sash. This single parameter adjustment capability addresses manufacturing tolerances without requiring multiple additional components.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a coupling device 1 for connecting between two carriages 4, 5 of a lift-and-slide espagnolette fitting 6 for doors or windows, said carriages being arranged on a sliding leaf 2 and running on a running rail 3. The coupling device 1 is arranged on the respective carriage 4, 5 and has an internal recess 7 for connecting a connecting rod 8 in a form-fitting and/or force-fitting manner, said connecting rod coupling the first carriage 4 to the second carriage 5. The movement of the first carriage 4, which is movably connected in a groove 9 of the espagnolette fitting 6 that has the slide leaf 2, can be transmitted to the second carriage 5. A respective height adjusting device 10 of the coupling device 1 is arranged opposite the carriage 4 and the carriage 5. When the height adjusting device 10 for each carriage 4, 5 is adjusted, the connecting rod 8 can be moved in the same direction perpendicularly to the movement direction of the carriages 4, 5 in a position which is horizontal to the groove 9.