Adjustable Plaster Leveling System with Screw-Driven Reference Bars

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Solution Overview

Problem

Current methods for applying plaster on walls are time-consuming, require multiple skilled operators, and result in high labor costs, making them inefficient and costly.

Innovation Solution

A system comprising fixable support means, screws with seats, alignment members with engagement portions, and a level bar that can be adjusted to ensure vertical alignment, allowing for easier and faster plaster application by non-specialist personnel, even on vertical surfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional methods using plumb bob and vertical mortar stripes are used to create reference lines, then uniform and planar plastered surface is achieved, but the process becomes very time consuming and requires multiple specialist operators

Engineering Contradiction:
Improveuniformity of plastered surfaceVSAvoidtime for creating reference stripes
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The system divides the wall surface into multiple sections by fixing support means at different locations, with each section having its own level bar and screws for independent adjustment. This segmentation allows parallel work on different sections simultaneously, reducing overall time while maintaining precision across the entire surface.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention introduces an intermediary system consisting of support means, adjustable screws, alignment members, and level bars that serve as reference elements. These intermediaries replace the traditional plumb bob and mortar stripe method, providing a mechanical framework that guides plaster application while eliminating time-consuming manual measurement and marking operations.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If traditional methods with multiple specialist operators are used, then proper plaster application is ensured, but labor costs significantly increase

Engineering Contradiction:
Improvequality of plaster applicationVSAvoidnumber of operators required
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system enables self-service operation where the adjustable level bars and support means automatically provide reference levels and alignment. The mechanical system self-regulates through adjustable screws and alignment members, eliminating the need for multiple specialists to continuously measure and adjust, while still ensuring proper plaster application quality.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention replaces the human-operated mechanical system of plumb bobs, levels, and manual measurements with a fixed mechanical reference system consisting of support means, adjustable screws, and rigid level bars. This mechanical substitution transforms the process from skill-dependent manual operations to a tool-guided process that reduces reliance on multiple trained operators.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Manufacturing precision

If vertical reference stripes are created and allowed to dry before filling, then proper plaster setting is achieved, but the overall process time increases

Engineering Contradiction:
Improveproper plaster settingVSAvoiddrying time of mortar stripes
Core Design Contradiction:
Manufacturing precisionVSDuration of action of stationary object

Solution Approach 1:

The system performs preliminary action by pre-installing support means and adjustable level bars on the wall surface before plaster application. These reference elements are positioned and adjusted in advance to establish the correct levels and alignment, eliminating the need to create and wait for drying of vertical mortar stripes. The preliminary setup provides immediate reference guidance for plaster application.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The invention introduces rigid level bars and adjustable support means as intermediary reference elements that replace the traditional mortar stripe intermediaries. These intermediaries provide immediate, stable reference levels without requiring drying time, as they are mechanical components rather than setting materials. The intermediaries enable continuous workflow without waiting for reference elements to cure.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Strength

If metal profiles are applied and later removed, then structural support is provided, but additional steps and time are required

Engineering Contradiction:
Improvestructural support for plasterVSAvoidnumber of plastering steps
Core Design Contradiction:
StrengthVSProductivity

Solution Approach 1:

The system employs disposable or temporary support means that are fixed to the wall, serve their structural and reference function during plaster application, and then can be removed or left embedded. These temporary supports replace permanent metal profiles, providing necessary structural support during the process while eliminating the need for profile removal and subsequent filling of empty spaces, thereby reducing the number of steps.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The invention merges the structural support function and the reference level function into a single integrated system of support means with adjustable screws and level bars. This combination eliminates the separate step of applying metal profiles purely for support, as the support means simultaneously provide both structural backing and plastering reference, reducing the total number of operations required.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3402943B1System and method for application of a plaster on a surface
Publication Date: 2019.12.04 FLEX HOUSE SRL
  • EP3402943B1 patent drawingFigure 1
  • EP3402943B1 patent drawingFigure 2
  • EP3402943B1 patent drawingFigure 3

AI summary

The present invention relates to a system for the application of plaster on a surface. Such system comprises at least one group (1, 1') comprising: support means (2, 14') fixable to said surface; a plurality of screws (4, 4') which can be screwed into said support means (2, 14'), each screw of said plurality of screws (4, 4') being provided with a head (5) wherein a seat is formed (6); a plurality of alignment members (7, 7'), wherein each alignment member of said plurality of alignment members (7, 7') is provided with an engagement portion (9) configured to engage rotatably in said seat; (6); in each alignment member of said plurality of alignment members (7, 7') there being formed a groove (10). The aforementioned group (1, Γ) further comprises a level bar (11, 11') configured in such a way as to be able to be coupled with said groove (10), so that when said plurality of screws (4, 4') is screwed into said support means (2, 14') fixed, in use, to said surface and said plurality of screws (4, 4'), said plurality of alignment members (7, 7') and said level bar (11, 11') are mutually coupled by inserting said engagement portion (9) in said seat (6) and said level bar (11, 11') in said groove (10), said level bar (11, 11') is vertically positionable, i.e. plumb, by adjusting the screwing of said plurality of screws (4, 4'), so as to provide a rest for levelling, in use, a determined quantity of material for plaster arranged on said surface. The present invention further concerns a method for the application of plaster on a surface through a system of the type described above.