Window Profile Closing Element Integration
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Solution Overview
Problem
Existing window and door fittings protrude into the rebate space, affecting appearance and increasing burglary risks due to selective force transmission and potential breakage, and require time-consuming assembly and costly subsequent installation.
Innovation Solution
Incorporating a closing element into the profile during the shaping process, allowing for a form-fitting connection and pivotable cover elements for easy access and replacement, which can be designed to accommodate various locking mechanisms and materials, reducing production time and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If fittings are screwed onto the profile after completion, then assembly is simple, but appearance is impaired and security is reduced
Solution Approach 1:
The closing element is integrated directly into the profile body during the extrusion process, merging two previously separate components (profile and closing element) into a single unified structure. This eliminates the need for subsequent assembly while improving appearance and security, as the closing element becomes an inherent part of the profile rather than an attached fitting.
Solution Approach 2:
The closing element is incorporated into the profile during the extrusion process itself, before the profile is completed and installed. This preliminary integration ensures that the closing element is already in place when the window or door is assembled, eliminating the need for time-consuming subsequent assembly operations.
2Ease of manufacture
If fittings are screwed to the profile, then installation is easy, but force transmission is selective and breakage risk increases
Solution Approach 1:
By integrating the closing element directly into the profile body through extrusion, the structure creates a unified load-bearing system. Force applied to the closing element is distributed throughout the entire profile structure rather than being concentrated at screw attachment points, significantly improving breakage resistance while maintaining installation ease.
3Object-affected harmful factors
If closing element is completely enclosed in profile, then appearance and protection are improved, but access for insertion and maintenance is difficult
Solution Approach 1:
The profile structure is segmented to include a removable or openable cover portion that provides access to the closing element. This segmentation allows the closing element to be fully enclosed for appearance and protection while still providing a designated access point for insertion and maintenance operations.
Solution Approach 2:
The cover or access mechanism is designed to be dynamically removable or openable, allowing the closing element to be fully enclosed during normal operation for appearance and protection, while providing easy access when insertion or maintenance is required. The dynamic nature of the cover allows the system to switch between enclosed and accessible states.
4Volume of moving object
If chamber cross-section is only slightly larger than closing element, then profile size is minimized, but friction increases and damage risk rises
Solution Approach 1:
The chamber cross-section is designed with local quality variations, providing sufficient clearance in critical areas to reduce friction during closing element insertion, while maintaining an overall compact profile size. The chamber may include localized features such as enlarged entrance areas or tapered sections that facilitate easy insertion without increasing the overall profile dimensions.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A window or door has a surrounding frame profile (1) incorporating an open-sided chamber (3) with by sidewalls (8, 9, 10) and accommodating a closure (11). In a process to manufacture the profile the material is heated to a plastic condition while in contact with a forming tool. During this process a closure (7) is pressed into the warm material in which it is partly enclosed.