Protective Frame Mounting for Larger Window Overlap

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Solution Overview

Problem

Existing insect screen devices face challenges in achieving a sufficient overlap with window frames due to limited mounting areas and complex installation processes, leading to alignment issues and reduced flexibility in frame size adjustment.

Innovation Solution

A protective device with a mounting device featuring a fastening element that can be clipped onto a clamping design of the frame struts, allowing attachment at any point and enabling a larger overlap with the window frame, and comprising adjustable frame struts with channels or projections for telescopic extension.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If mounting elements are arranged in the outer corner area of the tension frame, then the hanging element can engage behind the window frame, but only a relatively small area of the tension frame is available for overlap with the window frame

Engineering Contradiction:
Improveengagement stabilityVSAvoidoverlap area
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The mounting element is designed with a multi-dimensional structure that extends beyond the plane of the tension frame. The mounting element includes a mounting body that protrudes from the tension frame plane, allowing engagement in multiple spatial dimensions while maximizing the overlap area within the frame plane.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of manufacture

If mounting elements are inserted into profile strips from an end face before corner connectors are mounted, then mounting elements can be positioned in undercut designs, but precise alignment may not be possible afterwards or additional securing means are required

Engineering Contradiction:
Improvemounting element installationVSAvoidalignment precision
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The mounting elements are pre-positioned in the profile strips at the correct locations before the corner connectors are assembled. The profile strips are designed with guide features that ensure proper alignment of the mounting elements during this preliminary installation phase, eliminating the need for additional securing means.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If a separate groove with teeth is designed into the profile strip for the retaining claw, then the mounting element can be inserted directly into the profile strip, but the specific groove design limits compatibility with other profile strips

Engineering Contradiction:
Improvemounting element installationVSAvoidprofile strip compatibility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The mounting element is designed with a universal interface that can engage with various profile strip designs. The mounting body includes adaptable engagement features that can interface with different groove and tooth configurations, allowing the same mounting element to be used across multiple profile strip types without modification.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Facilitates easy installation and increased overlap with window frames, providing flexibility in frame size adjustment and improved mounting stability.

Implementation Method 1

the fastening element is elastically deformed and, at the end of the clipping process, elastically springs back, thus engaging at least a section of the clamping element

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP3910155B1Protection device
Publication Date: 2026.04.15 BASH TEC
  • EP3910155B1 patent drawingFigure 1~2
  • EP3910155B1 patent drawingFigure 3~4
  • EP3910155B1 patent drawingFigure 5

AI summary

The present invention relates to a protective device comprising: - a tension frame (1), wherein the tension frame (1) comprises first frame struts (2) and second frame struts (3) oriented transversely to the first frame struts (2), - a net, - clamping strips (5) with which the net is fixed to the tension frame (1), and - at least one mounting device (6) by means of which the tension frame (1) can be attached to a building having a building opening, wherein the frame struts (2, 3) each have at least one clamping design (7) extending along their longitudinal extent, and the clamping strip (5) for fixing the net to the frame strut (2, 3) can be attached to the clamping design (7).