Foldable Plaster Sealing Strip for Compact Storage and Transport

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Solution Overview

Problem

Plaster sealing strips are bulky and difficult to handle, store, and transport due to their elongated and inflexible structure, which complicates their installation and fastening to building elements.

Innovation Solution

A plaster sealing strip with a profile body comprising a base leg for fastening and a plaster leg for embedding in plaster, featuring an articulated cleaning leg that can be folded for compact storage and rolled up for transport, using materials with suitable elasticity to maintain flexibility and stability during installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the plaster sealing strip has a typical structure with sections aligned at an angle (including a plastering leg) for stable attachment and plastering, then the attachment reliability is improved, but the flexibility and ease of handling deteriorate

Engineering Contradiction:
Improveattachment reliabilityVSAvoidhandling ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The plastering leg is designed to be foldable relative to the base leg, allowing the sealing strip to transition between a rigid L-shaped configuration for stable attachment and a flexible folded configuration for easy handling and compact storage. This dynamic structure resolves the contradiction by making the rigidity adjustable based on operational needs.

Inventive Principle:
Principle #15Dynamics

2Reliability

If the plaster sealing strip has an elongated structure with angled sections for effective plastering and fastening, then the sealing performance is improved, but the bulkiness and storage difficulty worsen

Engineering Contradiction:
Improvesealing performanceVSAvoidstorage volume
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The foldable plastering leg allows the sealing strip to be compacted into a smaller volume for storage and transport, while maintaining the full L-shaped structure when deployed for sealing. This dynamic folding mechanism reduces storage volume without compromising sealing performance.

Inventive Principle:
Principle #15Dynamics

3Stability of the object's composition

If the plastering leg is made long and rigid for stable plastering onto the building wall, then the plastering stability is improved, but the flexibility for rolling up and compact storage deteriorates

Engineering Contradiction:
Improveplastering stabilityVSAvoidstorage adaptability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The plastering leg is designed with foldable connectivity to the base leg, enabling it to assume a stable extended position during plastering operations and a folded position for compact storage. This dynamic design provides both plastering stability and storage adaptability.

Inventive Principle:
Principle #15Dynamics

4Strength

If the profile body has a constant cross-section and rigid structure for structural integrity, then the strength is improved, but the flexibility for handling and storage deteriorates

Engineering Contradiction:
Improvestructural strengthVSAvoidhandling ease
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The profile body maintains constant cross-section for structural strength while introducing foldable joints between the base leg and plastering leg. This allows the rigid sections to be connected flexibly, providing both structural integrity and handling ease.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4194638B1Plaster sealing strip
Publication Date: 2025.09.03 PROTEKTORWERK FLORENZ MAISCH GMBH & CO KG
  • EP4194638B1 patent drawingFigure 1~3

AI summary

A plaster sealing strip for connecting a building element, particularly a window or door, to a building wall has a profile body comprising a base leg for attachment to the building element and/or the building wall, and a plaster leg for embedding in the plaster. The plaster leg is pivotally connected to the base leg in such a way that it can be folded between an installation position, in which it is oriented at least substantially perpendicular to the base leg, and a storage position, in which it is oriented at least substantially parallel to the base leg. Furthermore, the plaster sealing strip is designed so that it can be rolled up when the plaster leg is in the storage position.