Linear Pressing Jaw Dismantling Device for Layered Wall Removal

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Solution Overview

Problem

Traditional dismantling methods for the outermost layer of layered walls are slow, noisy, and cause damage to the underlying structure, generating dust and noise, especially in sensitive renovation sites like hospitals and offices.

Innovation Solution

A dismantling device with a frame part, supporting structure, and a linearly movable pressing jaw driven by a force-generating means, such as a hydraulic cylinder, which applies forces to both sides of the layer without causing damage to the underlying structure, allowing for precise control and adaptability to various materials and machines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a traditional lever-based dismantling device is used, then the outermost layer can be broken, but the underlying wall structure is damaged and the process is slow

Engineering Contradiction:
Improvedismantling speedVSAvoidintegrity of underlying wall structure
Core Design Contradiction:
ProductivityVSStrength

Solution Approach 1:

The patent replaces the traditional lever-based mechanical system with a hydraulic cylinder-based pressing jaw system. The hydraulic system provides controlled linear movement and force application, eliminating the need for lever mechanics that cause uncontrolled damage to the underlying structure while maintaining high dismantling efficiency

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

Solution Approach 2:

The patent changes the fundamental parameters of the dismantling mechanism by transitioning from rotational lever motion to linear hydraulic pressing motion. This parameter change allows for precise control of force application and movement distance, enabling the pressing jaw to break the outermost layer without compromising the underlying wall structure's integrity

Inventive Principle:
Principle #35Parameter changes

2Productivity

If traditional chipping or lever methods are used, then the outermost layer can be removed, but noise and dust are generated causing discomfort in sensitive environments

Engineering Contradiction:
Improvedismantling efficiencyVSAvoidnoise and dust levels
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces traditional mechanical chipping and lever-based breaking methods with a controlled hydraulic pressing system. This substitution eliminates the impact-based mechanisms that generate noise and dust, providing a clean and quiet dismantling process suitable for sensitive environments such as hospitals and residential buildings

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

3Area of stationary object

If the pressing jaw is positioned far from the bearing point to reach distant points, then coverage is improved, but the force at the farthest point becomes insufficient

Engineering Contradiction:
Improvecoverage area of pressing jawVSAvoidpressing force at farthest point
Core Design Contradiction:
Area of stationary objectVSForce

Solution Approach 1:

The patent employs a hydraulic cylinder to power the pressing jaw, providing sufficient force even when the jaw is positioned at maximum distance from the bearing point. The hydraulic system maintains consistent pressure and force output throughout the linear stroke, ensuring effective breaking capability across the entire coverage area without force degradation

Inventive Principle:
Principle #29Pneumatics and hydraulics

4Adaptability or versatility

If the pressing jaw rotates with respect to its bearing point, then flexibility is improved, but the back portion damages the actual wall structure

Engineering Contradiction:
Improveflexibility of pressing jaw movementVSAvoidintegrity of actual wall structure
Core Design Contradiction:
Adaptability or versatilityVSStrength

Solution Approach 1:

The patent inverts the traditional rotational movement concept by implementing linear reciprocating motion instead. The pressing jaw moves back and forth in a straight line along the surface of the outermost layer, applying force only where needed for breaking while the back portion never contacts or damages the actual wall structure behind the insulation layer

Inventive Principle:
Principle #13The other way round (Inversion)

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 device minimizes damage to underlying structures, reduces noise and dust, enhances dismantling speed, and allows versatile mounting on machines, ensuring clean and efficient dismantling operations.

Implementation Method 1

at least one force-generating means to move the pressing jaw with respect to the frame part, wherein the pressing jaw is adapted to direct the second force to the second side of the structure to be dismantled, with the force-generating means pulling the pressing jaw towards the force-generating means

Methodology Applied
Scientific EffectHydraulic force: Hydraulic Press

Data Source

PatentEP4433674B1Dismantling device for dismantling structures
Publication Date: 2026.02.25 TURUN ALUEPURKAUS
  • EP4433674B1 patent drawingFigure 1a
  • EP4433674B1 patent drawingFigure 1b
  • EP4433674B1 patent drawingFigure 1c

AI summary

A dismantling device for dismantling structures comprises a frame part (101), a sup porting structure (102) fixed with respect to the frame part to direct first forces to a first side of a structure to be dismantled, a pressing jaw (103) to direct a second force to a second side of the structure to be dismantled, and a force-generating means (104) to move the pressing jaw with respect to the frame part. The pressing jaw is movably supported with respect to the frame part in such a way that the press ing jaw is adapted to move linearly with respect to the frame part. Thus, no section of the pressing jaw needs to move away from the structure to be dismantled as the structure is pressed by the pressing jaw, resulting in that any structures behind the structure to be dismantled are at a negligible, or at least at a minimum risk of getting damaged.