Window Profile Lateral Fitting Groove

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Solution Overview

Problem

Conventional window and door profiles with fitting part grooves have aesthetics and energy efficiency issues due to protruding fittings and unsightly grooves, which require a visible airgap and compromise visual appeal.

Innovation Solution

The fitting part groove is positioned behind the rebate surface with a non-parallel opening, such as orthogonal to the main plane, allowing fittings to be hidden, reducing the rebate clearance and enhancing aesthetics by eliminating visible grooves, and optionally using a cover for protection and attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the fitting part groove is arranged on the rebate surface with parallel opening, then fittings can be accommodated, but fittings protrude into the airgap area and create visible unsightly grooves

Engineering Contradiction:
Improvefitting accommodationVSAvoidairgap requirement
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The fitting part groove is repositioned from a parallel arrangement on the rebate surface to a lateral arrangement behind the rebate surface, changing the spatial dimension of groove placement. This dimensional shift allows the groove opening to face the front or rear side of the profile instead of the rebate surface, eliminating protrusion into the airgap area while maintaining fitting accommodation functionality

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

Solution Approach 2:

The fitting part groove is nested behind the rebate surface within the profile structure, with the groove opening facing the front or rear side. This nesting arrangement hides the groove and fittings from the rebate side view, eliminating the need for a large airgap while preserving the fitting accommodation function

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of operation

If fittings are arranged in the airgap area, then functional elements can be driven, but the rebate clearance must be larger reducing energy efficiency

Engineering Contradiction:
Improvefunctional element driveVSAvoidrebate clearance
Core Design Contradiction:
Ease of operationVSLoss of energy

Solution Approach 1:

The fitting part groove is repositioned from a parallel arrangement on the rebate surface to a lateral arrangement behind the rebate surface, changing the spatial dimension of groove placement. This dimensional shift allows the groove opening to face the front or rear side of the profile instead of the rebate surface, eliminating protrusion into the airgap area while maintaining fitting accommodation functionality

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

Solution Approach 2:

The fitting part groove is nested behind the rebate surface within the profile structure, with the groove opening facing the front or rear side. This nesting arrangement hides the groove and fittings from the rebate side view, eliminating the need for a large airgap while preserving the fitting accommodation function

Inventive Principle:
Principle #7Nested doll (Nesting)

3Ease of manufacture

If the fitting part groove is visible on the rebate side, then fitting attachment is straightforward, but the visual appeal and surface continuity are compromised

Engineering Contradiction:
Improvefitting attachmentVSAvoidsurface continuity
Core Design Contradiction:
Ease of manufactureVSShape

Solution Approach 1:

The fitting part groove is repositioned from a parallel arrangement on the rebate surface to a lateral arrangement behind the rebate surface, changing the spatial dimension of groove placement. This dimensional shift allows the groove opening to face the front or rear side of the profile instead of the rebate surface, eliminating protrusion into the airgap area while maintaining fitting accommodation functionality

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

Solution Approach 2:

The fitting part groove is nested behind the rebate surface within the profile structure, with the groove opening facing the front or rear side. This nesting arrangement hides the groove and fittings from the rebate side view, eliminating the need for a large airgap while preserving the fitting accommodation function

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP2199515B1Profile with lateral fitting groove
Publication Date: 2015.09.02 ROTO FRANK AG
  • EP2199515B1 patent drawingFigure 1a~1b
  • EP2199515B1 patent drawingFigure 1c~1d
  • EP2199515B1 patent drawingFigure 2~4

AI summary

The profiles e.g. wing profile (21), has a fitting part nut (22) sectionally arranged behind a rebate surface (23) in the profile. A nut opening is provided at front and rear sides of the profile, which is formed from plastic, aluminum or wood. A cover (26) is removably attached to the profile and covers the fitting part nut. The fitting part nut extends over an entire length of the profile. A fitting part (24) i.e. connecting rod fitting part, is attached to a side wall (25) of the fitting part nut using a screw, a clip or an adhesive bonding part.