Pressing Device Attachment for Stable Metal Upright Cutting

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Solution Overview

Problem

Existing manual or motor-driven pressing devices for creating through-openings in metal uprights, such as those used in house construction, often result in unstable cuts with sharp edges, posing safety hazards and damaging cables, and are inefficient and costly.

Innovation Solution

An attachment for pressing devices featuring a base body with rotatably mounted levers that actuate a die and punch mechanism, allowing for precise and stable cutting of through-openings in metal posts without sharp edges, using interchangeable carriers and a conical punch design for efficient force transmission and easy removal of cut parts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a flex is used to create through-openings in metal uprights, then the cutting process is simple, but the stability of the uprights is impaired and sharp edges are created

Engineering Contradiction:
Improvecutting process simplicityVSAvoidupright stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces the mechanical flex cutting system with a press device that uses controlled mechanical pressure to create through-openings. The press device with punch and die creates cleaner cuts that maintain upright stability while eliminating the instability caused by flex cutting.

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

Solution Approach 2:

The invention changes the cutting parameters from flex-based mechanical bending to press-based controlled force application. By using a press device with adjustable force and precision positioning, the cutting process achieves both ease of operation and maintenance of upright stability.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If a flex is used to create through-openings, then the process is straightforward, but sharp corners and edges are produced that pose safety hazards

Engineering Contradiction:
Improveprocess straightforwardnessVSAvoidsharp edges causing injury risk
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the flex cutting mechanism with a press device that produces cleaner, burr-free cuts. The punch and die system creates smooth edges without the sharp corners generated by flex cutting, eliminating safety hazards while maintaining operational simplicity.

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

3Adaptability or versatility

If traditional pressing devices are used for creating through-openings, then the equipment is available, but the precision and quality of cuts are insufficient

Engineering Contradiction:
Improveequipment availabilityVSAvoidcut precision and quality
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent introduces dynamic elements to the pressing device, including movable carriers that can be positioned and locked at precise locations. The levers provide mechanical advantage and controlled movement, enabling the press device to achieve high cutting precision while using standard pressing device infrastructure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention introduces intermediate components such as carriers, levers, and guide elements that mediate between the pressing device and the workpiece. These intermediaries enable precise force transmission and positioning, improving cut quality while maintaining compatibility with existing pressing devices.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Ease of operation

If manual force is used to operate pressing devices, then the operation is simple, but sufficient pressing force is difficult to generate

Engineering Contradiction:
Improveoperation simplicityVSAvoidpressing force magnitude
Core Design Contradiction:
Ease of operationVSForce

Solution Approach 1:

The patent employs curved lever arms that provide mechanical advantage, allowing manual force to be amplified. The lever mechanism converts small manual inputs into large pressing forces through rotational motion and force multiplication, maintaining operational simplicity while achieving sufficient force magnitude.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The invention uses dynamic lever mechanisms that provide mechanical advantage throughout the pressing cycle. The levers transform small manual forces into large pressing forces through rotational motion, enabling operators to generate sufficient force while maintaining simple operation.

Inventive Principle:
Principle #15Dynamics

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

Enables quick, precise, and stable production of through-openings in metal posts, preventing injuries and damage to cables, while maintaining the stability of the uprights and reducing operational complexity and costs.

Implementation Method 1

The die and the punch are actuated by the levers in that they are moved towards one another by the levers and the pressure required for the cut is built up

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

a first carrier 12a and a second carrier 12b are guided in guide elements 11a, 11b arranged on the base body 37 so as to be movable relative to one another and apart from one another along an actuation axis 6

Methodology Applied
Scientific EffectLinear Motion:

Data Source

PatentEP2883658B1Attachment for a pressing device
Publication Date: 2017.09.27 SCHWINGENSCHROT JOSEF
  • EP2883658B1 patent drawingFigure 1~2
  • EP2883658B1 patent drawingFigure 3
  • EP2883658B1 patent drawingFigure 4

AI summary

Attachment (1) for a manually or motor-driven, handheld pressing device, wherein the attachment (1) comprises a base body (37) and two levers (3) rotatably mounted thereon, which can be actuated by the device, wherein the attachment (1) comprises a die (4) and a punch (5) which are arranged to be movable relative to each other along an actuating axis (6), and the levers (3) are provided for driving the die (4) and the punch (5), wherein the punch (5) has a cutting edge (9) and the die (4) has a stop for cutting through openings in workpieces, preferably profile components or metal uprights (2), and wherein the die (4) is arranged on a first and the punch (5) on a second support (12a,b) each movably mounted on the attachment (1).In order to create through openings in a column easily, quickly and precisely, it is provided that the first (12a) and second support (12b) are each guided in a guide element (11) arranged on the attachment (1).