Modular Drive Housing for Lift-Slide Sash Protection
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Solution Overview
Problem
Existing drive and adjusting devices for lift-slide-tilt or lift-slide sashes in windows and doors are costly, complex to assemble, and lack protection against dirt and manipulation, with visible components increasing the risk of injury and damage.
Innovation Solution
A modular drive and adjusting device system with an electrically driven motor, gearbox, and clutch, housed in a U-shaped profiled guide rail, featuring a snap-in connection and modular design for easy assembly and protection, with components encased to prevent dirt ingress and reduce assembly complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drive and adjusting device are mounted without additional cover, then the appearance is greatly impaired and protection against dirt is insufficient, but adding a cover increases device complexity and assembly cost
Solution Approach 1:
The patent merges the protective cover with the guide rail structure, where the cover is integrated as an inherent part of the guide rail assembly rather than being a separate component. This integration provides protection against dirt while avoiding the complexity and cost of additional separate covering components.
Solution Approach 2:
The guide rail is designed to serve multiple functions: it provides structural support for the drive mechanism, guides the movement of the sash, and simultaneously serves as a protective enclosure when equipped with the integrated cover. This multi-functionality reduces the need for separate protective components.
2Reliability
If visible components are exposed, then the risk of injury during assembly is increased and manipulation from outside is more possible, but enclosing components increases assembly complexity
Solution Approach 1:
The protective enclosure is merged with the guide rail structure, creating a unified component that provides safety protection without requiring separate enclosing parts. This integration maintains safety functionality while minimizing additional complexity.
3Ease of manufacture
If components are distributed at great distance over the length of the guide rail, then the control device is large in structure, but concentrating components simplifies assembly
Solution Approach 1:
The patent combines the drive mechanism and adjusting device into a single integrated assembly mounted at one location on the guide rail. This consolidation simplifies assembly by reducing the number of separate components and their distribution along the rail, while the compact design maintains necessary functional separation.
4Power
If the sash has relatively high mass, then lifting requires high torque, but reducing mass compromises structural integrity
Solution Approach 1:
The patent replaces a purely mechanical lifting system with an electrically driven drive mechanism. The electric motor provides the necessary torque for lifting heavy sashes without requiring the mechanical structure itself to be oversized, allowing the sash to maintain its structural integrity and mass while being lifted by a controlled electrical system.
Data Source
Figure 1
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Figure 5~8
AI summary
Drive 1 with an adjustment device 2 for a sliding sash 3 as a lift-and-slide tilt sash or lift-and-slide sash for a window or a door 4, wherein the drive 1, consisting of a circuit board 5, a motor 6 and a gearbox 7, drives a coupling 8, with transmission via the coupling 8 to the adjustment device 2, drives a fitting 10 arranged in a guide rail 9, wherein at least the adjustment device 2 is mounted in a housing 11, and enters into a dimensionally stable connection 12 with the guide rail 9, wherein the drive 1 is supported by a holder 13 perpendicular to the drive direction of the fitting 10, wherein at least a locking projection 14, 15 arranged on the holder 13 and a clearance 16, 17 arranged on the guide rail 9 form a detachably clippable connection by means of a locking snap device 18.Furthermore, a spindle 31 is driven via the coupling 8, on which a slide 23 with a spindle nut can be moved, wherein the slide 32 is operatively engaged with the spindle 31 via a threaded section 33 and, in extension on the central axis 34 of the threaded section 33, the spindle 31 is guided by a bore 35 formed therein.