Skylight Drive Mounting Bracket for Precise Alignment

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Solution Overview

Problem

The installation of a drive device for a roof window's sash, especially when retrofitting a manually operated one with an electric drive, is complex and requires specialized expertise, making it difficult for users to achieve precise and trouble-free operation.

Innovation Solution

A mounting bracket with an angled receptacle and locking block system allows for easy and precise positioning of the drive unit on the roof window frame, enabling users to align and attach the drive device without specialized staff, ensuring accurate alignment in all axes and preventing misalignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If a drive device is retrofitted onto an existing roof window, then the roof window can be operated mechanically, but the installation requires specialist staff and complex positioning work

Engineering Contradiction:
Improvemechanical operation of roof windowVSAvoidinstallation complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The mounting bracket is designed with pre-formed gripping elements that engage with corresponding features on the roof window frame. This preliminary structural arrangement allows the drive device to be positioned correctly without requiring complex alignment procedures or specialist installation knowledge, thereby reducing installation complexity while maintaining automation capability

Inventive Principle:
Principle #10Preliminary action

2Reliability

If complex positioning work is performed to ensure perfect operation, then jam-free and wear-free operation is achieved, but the installation process becomes more difficult and time-consuming

Engineering Contradiction:
Improvejam-free operationVSAvoidinstallation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The mounting bracket incorporates self-aligning features where gripping elements automatically engage with corresponding features on the roof window frame. This self-service mechanism ensures correct positioning and reliable operation without requiring time-consuming complex positioning work or specialist alignment procedures, thereby reducing installation time while maintaining jam-free operation

Inventive Principle:
Principle #25Self-service

3Manufacturing precision

If an assembly jig is used to mount the drive device, then precise positioning is achieved, but the installation requires specialist staff and additional equipment

Engineering Contradiction:
Improvepositioning precisionVSAvoidease of installation
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The alignment and positioning functions that would normally require a separate assembly jig are extracted and integrated directly into the mounting bracket structure. The gripping elements and engagement features are built into the bracket itself, eliminating the need for external positioning equipment and specialist staff, thereby improving ease of installation while maintaining positioning precision

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentEP3241968B1Drive device for a wing frame of a residential skylight and residential skylight with drive device
Publication Date: 2019.01.09 ROTO FRANK AG
  • EP3241968B1 patent drawingFigure 1
  • EP3241968B1 patent drawingFigure 2
  • EP3241968B1 patent drawingFigure 3

AI summary

The invention relates to a drive device (18) for a sash frame (2) of a roof window (1), comprising a drive unit (19) which has an electric drive (20) and a connecting means (21) which can be driven by the electric drive for applying pressure to the sash frame (2) for opening and closing it.It is provided that a mounting bracket (23) on which the drive unit (19) is arranged and with which the drive unit (19) can be attached to a frame (3) of the roof window (1), wherein the mounting bracket (23) has an angled receptacle (44) for a precise gripping of at least one corner area (45) of a horizontal mullion (8) of the frame (3) for reproducible positioning on the frame (3) and a receiving passage (53) having two limiting surfaces (51, 52) for a precise receiving between the limiting surfaces (51, 52) of a locking block (64) located on the frame (3) which serves to lock the closed sash frame (2) on the frame (3).