Pre-assembled Connecting Element for Sun Protection Systems

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Solution Overview

Problem

Existing sun protection systems face challenges in installation efficiency due to complex assembly processes, potential thermal bridges, and moisture-related issues, leading to increased costs and reduced service life.

Innovation Solution

A connecting element for sun protection systems comprising a holding element, a bearing element, and a supporting element with a guide rail, where the holding element is latched into the support element using an engagement mechanism, allowing for pre-assembled installation and avoiding thermal bridges by self-supporting the system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the winding shaft is fitted precisely into the window or door lintel with adjustment, then the sun protection system can be properly installed, but the assembly time increases considerably

Engineering Contradiction:
Improvefitting precisionVSAvoidassembly time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The connecting element is pre-assembled in the factory with the bearing body and winding shaft pre-positioned. This preliminary action eliminates the need for time-consuming on-site adjustments while maintaining precise fitting, as the pre-assembled unit is designed to fit into the lintel niche as a complete package.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system is divided into separate functional modules: the connecting element (with bearing body and winding shaft) and the lintel niche. The connecting element can be pre-assembled and tested separately, then installed as a unit, allowing precision work to be done in the factory rather than on-site.

Inventive Principle:
Principle #1Segmentation

2Strength

If the support element is connected to the wall with multiple screws, then the sun protection system is securely mounted, but thermal bridges form leading to moisture condensation

Engineering Contradiction:
Improvemounting strengthVSAvoidthermal bridge
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The bearing body is extracted from direct wall contact and positioned within the lintel niche, supported by the connecting element instead of being directly screwed to the wall. This extraction removes the thermal bridge path while maintaining secure mounting through the latching mechanism and engagement elements.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The connecting element acts as an intermediary between the wall structure and the bearing body. It provides mechanical support and positioning without creating a direct thermal bridge, as it is designed to fit into the lintel niche and hold the bearing body through engagement elements rather than direct wall attachment.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Stability of the object's composition

If the holding element is accommodated in the support element with additional components, then the assembly is stable, but the number of screw connections increases assembly time

Engineering Contradiction:
Improveassembly stabilityVSAvoidassembly time
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

The holding element, bearing body, and connecting element are merged into a single pre-assembled unit. The engagement element and counter-element are integrated into the respective components, eliminating the need for separate screw connections during installation. The entire assembly is stabilized through the interlocking engagement mechanisms that are already in place during factory assembly.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3208413B1Connecting element for a sunscreen device
Publication Date: 2019.08.07 GRIESSER HOLDING AG
  • EP3208413B1 patent drawingFigure 1~3
  • EP3208413B1 patent drawingFigure 4~6
  • EP3208413B1 patent drawingFigure 7

AI summary

A connecting element (1, 101) for a sun protection system comprises a retaining element (2, 102), a support element (3, 103), and a support element (4, 104), wherein the support element (4, 104) includes a guide rail (40) for a curtain, the support element (4, 104) extending from the underside to the area of ​​the ceiling of a building opening, and the support element (4, 104) supporting the support element (3, 103). The retaining element (2, 102) is received in the support element (3, 103). The retaining element (2, 102) is held in the support element (3, 103) by a locking element (32).