Guide Recess on Window Frame Support Rail
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Solution Overview
Problem
Existing window frame fixing devices face difficulties in attaching the support element to a window frame that has been provisionally positioned over insulating materials, making the process less accessible and more challenging due to the added layer of thermal insulation.
Innovation Solution
Incorporating a guide recess on the support element allows for a quick and defined guiding movement of the fixing element end into a connection position, enabling easy engagement with a hole in the support element, even when the window frame is partially mounted above insulating materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If insulating materials are applied to the outside of the masonry for thermal insulation, then thermal insulation performance is improved, but access to the support element for fastening becomes more difficult
Solution Approach 1:
The guide recess acts as an intermediary feature between the fixing element and the support element bore. It provides a defined path that guides the fixing element into proper alignment with the bore, mediating the connection process and making it easier to access and assemble even when insulated.
2Reliability
If the window frame is mounted above insulating material, then thermal insulation performance is improved, but fastening access becomes more difficult
Solution Approach 1:
The guide recess serves as a mediating structure that facilitates the fastening process. It provides a predefined path that guides the fixing element to the correct position, reducing the difficulty of manufacturing and assembly operations when the window frame is mounted above insulating material.
3Productivity
If a guide recess is provided on the support element, then alignment and engagement speed is improved, but device complexity increases
Solution Approach 1:
The guide recess segments the support element structure into functional zones: the guide recess portion that provides alignment, and the bore portion that provides engagement. This segmentation allows each feature to perform its specific function efficiently, improving assembly speed while keeping the overall structure relatively simple.
Solution Approach 2:
The guide recess provides localized guidance functionality at a specific location on the support element, rather than requiring the entire structure to be complex. This local quality approach improves alignment speed while minimizing the increase in overall device complexity.
Data Source
Figure 1~3
AI summary
The device has a support member (2) i.e. U-shaped mounting rail, attached at an edge of a building aperture during fixing a vertical frame portion of a window frame via a fixing member e.g. screw. The support member comprises a hole (5) for engaging an end of the fixing member and a guide recess (10) e.g. guide slot or guide groove, for receiving and guiding an end of the fixing member toward the hole. The guide recess passes along a longitudinal center plane (M) of a flat side (6) of the support member.