Sliding Frame Element for Masonry Bonding and Alignment

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Solution Overview

Problem

Current window and door frame installation methods are complex and costly, requiring extensive assembly work and specialized skills due to the need for precise alignment and sealing, especially with heavier windows and lighter masonry, which can lead to cracks and energy inefficiencies.

Innovation Solution

A window or door frame system with sliding elements that can be manually displaced and glued to the masonry using a sealing element and adhesive, allowing for secure fastening without dowels or complex sealing systems, enabling easy installation and adjustment for temperature fluctuations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If traditional dowel and sealing tape systems are used, then the window frame can be secured to masonry, but the assembly process becomes complex and time-consuming with multiple components required

Engineering Contradiction:
Improveease of installationVSAvoidcomplexity of sealing system
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent combines the sealing function and the fastening function into a single integrated adhesive sliding element. This element simultaneously provides adhesive bonding to masonry, sliding capability for alignment adjustment, and sealing between the frame and masonry, eliminating the need for separate dowels, sealing tapes, and alignment tools.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The adhesive sliding element serves multiple functions: it acts as an adhesive bonding agent, a sliding mechanism for alignment, a sealing element, and a fastening component. This multi-functional design replaces the traditional multi-component system with a single universal element that performs all necessary installation functions.

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

2Reliability

If precise alignment is required for traditional sealing systems, then sealing effectiveness is improved, but installation time and skill requirements increase

Engineering Contradiction:
Improvesealing effectivenessVSAvoidassembly time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The adhesive sliding element incorporates a sliding mechanism that allows dynamic adjustment during installation. The element can slide along the frame to accommodate alignment variations and tolerance differences between the frame and masonry opening, enabling precise sealing without requiring pre-aligned positioning or complex adjustment procedures.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The sliding element automatically performs alignment and sealing functions through its inherent sliding capability and adhesive properties. The system is self-aligning as the element slides into position and self-sealing through the adhesive bond, eliminating the need for installer skill in precise positioning or additional sealing steps.

Inventive Principle:
Principle #25Self-service

3Weight of moving object

If heavy windows are installed on lighter masonry, then window functionality is improved, but the risk of cracks and structural failure increases

Engineering Contradiction:
Improvewindow weightVSAvoidstructural integrity
Core Design Contradiction:
Weight of moving objectVSStrength

Solution Approach 1:

The adhesive sliding element creates a preliminary strong adhesive bond between the frame and masonry before the window is installed. This pre-bonding distributes the load of heavy windows across a large adhesive surface area, preventing stress concentration that could cause cracks in lighter masonry structures.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses a composite approach combining adhesive bonding with the mechanical strength of the sliding element. The adhesive layer acts as a flexible interface that distributes forces, while the sliding element provides structural support, creating a composite fastening system suitable for heavy windows on lighter masonry.

Inventive Principle:
Principle #40Composite materials

4Loss of energy

If traditional sealing tapes are used, then sealing is provided, but energy efficiency and airtightness are insufficient

Engineering Contradiction:
Improveenergy efficiencyVSAvoidairtightness
Core Design Contradiction:
Loss of energyVSReliability

Solution Approach 1:

The adhesive sliding element changes the sealing parameter from mechanical compression (sealing tape) to chemical bonding (adhesive). The adhesive creates a continuous, flexible seal that maintains airtightness under varying conditions such as temperature fluctuations and building settlement, providing superior energy efficiency compared to traditional sealing tapes.

Inventive Principle:
Principle #35Parameter changes

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

The system provides immediate airtightness, reduces assembly time and material costs, and allows for flexible installation without the need for precise masonry preparation, ensuring secure and energy-efficient sealing over time.

Implementation Method 1

The sliding element has construction adhesive on the side facing the wall opening. The sliding element is glued to the masonry

Methodology Applied
Scientific EffectAdhesive bonding: Adhesive

Implementation Method 2

with two sealing elements arranged on its two opposing side walls and connected to it by force-fit or form-fit, for sealing between the two lateral surfaces of the frame and the sliding element

Methodology Applied
Scientific EffectSealing:

Implementation Method 3

slight movements of the window, such as those caused by temperature fluctuations or opening and closing, are compensated for

Methodology Applied
Scientific EffectThermal expansion: Thermal Expansion

Data Source

PatentEP3995661B1Window or door frame with sliding elements and gluing thereof to masonry and mounting method for same
Publication Date: 2023.05.31 WEGERER MARTIN
  • EP3995661B1 patent drawingFigure 1~2
  • EP3995661B1 patent drawingFigure 3
  • EP3995661B1 patent drawingFigure 4

AI summary

1. Window or door frames with sliding elements and their bonding to the masonry, as well as assembly methods for this purpose. 2.1 Various devices for aligning and sealing window or door frames are known. The problem is that, due to government/legal requirements for energy conservation, windows are becoming increasingly heavier (e.g., triple glazing is state of the art). Masonry consists of increasingly lighter bricks with more air pores for improved thermal insulation. 2.2 To design a frame or door in such a way that it is, on the one hand, cost-effective to manufacture and, on the other hand, reduces the assembly work for alignment and sealing and enables secure fastening of the frame or door in the reveal on site, claim 1 provides for the following:that the frame (R) can be inserted into a gap between a reveal (L) of a wall opening and the window sash, or the door frame can be inserted into a gap between a reveal (L) of a wall opening and the door, and can be fixed in the masonry of the wall (W), wherein, for aligning and sealing the door or window (F), it has at least one sliding element (S) arranged on one side parallel to the reveal (L) with a sealing element (D) connected to it by force or form fit for sealing between the frame (R) and the sliding element (S), which is approximately the same length as the respective frame part and the reveal length on that side, wherein the frame (R) has means (KS) for manually moving the sliding element (S) to the reveal (L) and clamping the frame (R) in the reveal (L), wherein the frame (R) has locking screws (KS) arranged at a distance from each other as means (KS) for manually moving the sliding element (S).which are arranged such that, when manually operated, they press down on the sliding element (S) on the side facing away from the reveal (L), and wherein the sliding element (S) has a construction adhesive (B) on the side facing the reveal (L).