Fastening Element for Window Frame Ceiling Attachment

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Solution Overview

Problem

In buildings with large window areas, high wind loads pose a challenge for the attachment of window frames to roller shutter or blind boxes made of insulating materials, leading to instability and potential damage due to inadequate force transfer.

Innovation Solution

A fastening element with a fastening section, an anchoring section, and a connecting section is used to securely attach the window frame to the building ceiling, allowing wind forces to be transmitted directly to the ceiling, thereby stabilizing the window frame and reducing noise and damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the window frame is attached to the roller shutter box or blind box made of insulating material, then the installation is simplified, but the wind load absorption capability is insufficient leading to instability and potential damage

Engineering Contradiction:

Improveinstallation simplicityVSAvoidwind load absorption

Core Design Contradiction:

Ease of manufactureVSStrength

Solution Approach 1:

The fastening element is divided into three distinct sections: a fastening section for connecting to the window frame, an anchoring section for securing to the building ceiling, and a connecting section linking both. This segmentation allows each part to perform its specific function optimally - the fastening section handles window attachment, the connecting section transmits forces through the roller shutter box without compromising it, and the anchoring section provides robust ceiling anchorage to absorb wind loads.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The fastening element acts as an intermediary component between the window frame and the building ceiling. Rather than directly attaching the window to the weak insulating material of the roller shutter box, the fastening element introduces a strong metal intermediary that spans through the roller shutter box and anchors into the load-bearing ceiling structure, thereby transmitting wind forces to a suitable support structure.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Force

If the connecting section penetrates through the roller shutter box or blind box, then the force transfer path is established, but the roller shutter or blind functionality may be compromised

Engineering Contradiction:

Improveforce transfer capabilityVSAvoidroller shutter or blind functionality

Core Design Contradiction:

ForceVSReliability

Solution Approach 1:

The connecting section is designed to penetrate only specific localized areas of the roller shutter box or blind box - specifically through the insulating material regions rather than through the functional roller compartment or blind slat areas. This localized penetration approach allows force transfer while preserving the operational integrity of the roller shutter or blind mechanisms in their designated zones.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The roller shutter box or blind box is functionally segmented into different zones: the roller compartment area that must remain intact for operational functionality, and the insulating material areas that can be penetrated for fastening purposes. The connecting section is strategically positioned to penetrate only the insulating material zones, thereby maintaining a clear separation between force transfer paths and functional operational zones.

Inventive Principle:

Principle #1Segmentation

3Stability of the object's composition

If the window frame is securely anchored to the building ceiling, then the stability under wind loads is improved, but the complexity of the fastening system increases

Engineering Contradiction:

Improvewindow frame stabilityVSAvoidfastening system complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

Multiple functions are merged into a single integrated fastening element: the fastening section for window frame attachment, the connecting section for force transmission through the roller shutter box, and the anchoring section for ceiling securement. This consolidation reduces the need for multiple separate components and assembly steps, achieving robust ceiling anchorage while maintaining relatively simple installation procedures.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The fastening element is designed as a multi-functional component that simultaneously performs window attachment, force transmission, and ceiling anchoring. This universal design allows a single element to handle all critical functions required for stable window installation under wind loads, reducing overall system complexity compared to using multiple specialized components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP3091167B1Fastening element for attaching a window frame to a ceiling of a structure, associated structure and method for fixing a frame of a window to a ceiling

Publication Date: 2020.09.23 HAPA

Figure 1~2
Figure 3
Figure 4~5

AI summary

Structure (4, 16, 27) comprising at least one building ceiling (3, 19, 31), a window frame (2, 17, 29) and a roller shutter box (13, 30) or a blind box (20) arranged between the window frame (12, 17, 29) and the building ceiling (3, 19, 31), wherein the structure (4, 16, 27) comprises at least one fastening element (1, 21) with a fastening section (5, 22), an anchoring section (6, 23) and a connecting section (7, 24) connecting the fastening section (5, 22) to the anchoring section (6, 23), wherein the window frame (2, 17, 29) is connected to the fastening section (5, 22) and the anchoring section (6, 23) is anchored in the building ceiling (3, 19, 31) and the connecting section (7, 24) passes through the roller shutter box (13, 30) or the blind box (20).