Gas-Piston Nailing Device for Insulation Panel Fastening

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Solution Overview

Problem

Existing fastening methods for insulation panels and similar components are time-consuming and strenuous, often leading to damage and failure due to excessive energy when driving in expanding elements, particularly with manual hammering, which results in fatigue and increased errors.

Innovation Solution

A method utilizing a gas-piston-operated nailing device that drives impact screws or expansion elements with a metallic disk or washer to absorb energy, allowing the dowel to crumple and expand without direct contact, reducing the risk of damage and enabling faster assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual hammering is used to drive in expanding elements, then assembly can be performed with simple tools, but the process is time-consuming and strenuous leading to fatigue and increased errors

Engineering Contradiction:

Improvesimplicity of toolsVSAvoidassembly speed

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The patent replaces the manual hammering mechanical system with a pneumatic or hydraulic driving device that automatically drives the expanding elements into the insulation panel. This substitution eliminates manual fatigue while significantly increasing assembly speed, as the powered device can drive multiple fasteners rapidly without human intervention.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The expanding element is designed to automatically expand after being driven into the panel, creating its own anchoring function without requiring additional manual operations. The element self-secures by deforming the holding plate and expanding within the pre-drilled hole, eliminating the need for separate fastening steps.

Inventive Principle:

Principle #25Self-service

2Productivity

If excessive energy is applied when driving in expanding elements, then faster assembly is achieved, but damage to the dowel and failure of the fastening unit occurs

Engineering Contradiction:

Improveassembly speedVSAvoidfastening unit integrity

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent incorporates a cushioning element or energy-absorbing feature within the expanding element or driving mechanism that prevents excessive force transmission to the dowel. This cushioning mechanism absorbs impact energy during the driving process, ensuring that sufficient force is applied for rapid assembly while protecting the dowel from damage that would compromise fastening reliability.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The expanding element is designed with dynamic properties that allow it to progressively expand and deform the holding plate during insertion. The element transitions from a compact state during driving to an expanded state upon insertion, automatically adjusting to the resistance encountered and preventing excessive force application that could damage the dowel while ensuring reliable fastening.

Inventive Principle:

Principle #15Dynamics

3Ease of manufacture

If telescopic sleeve part with large diameter through hole is used, then the holding plate can be deformed properly, but the dowel may slip through during driving in

Engineering Contradiction:

Improveholding plate deformation capabilityVSAvoiddowel retention

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent introduces an intermediary element, such as a driving aid or guide feature, within the telescopic sleeve part that prevents the dowel from slipping through during the driving process. This intermediary component allows the holding plate to be properly deformed by the expanding element while simultaneously providing mechanical interference or guidance that retains the dowel in position until the fastening is complete.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

This approach significantly reduces the risk of damage to the dowel and simplifies the assembly process by dissipating excess energy, making the installation of insulation panels and other components faster and more efficient, while minimizing fatigue and errors.

Implementation Method 1

getrieben durch ein gaskolbenbetriebsartiges Nietgerät

Methodology Applied

Scientific EffectGas piston operation: Gas Compressor

Implementation Method 2

dissipating excess energy

Methodology Applied

Scientific EffectEnergy dissipation through deformation: Deformation

Data Source

PatentEP1867805B1Method and device for installation of constructional elements, in particular insulation panels, onto a wall

Publication Date: 2010.09.15 GRAWE BERND

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Figure 3~4

AI summary

The method involves assembling a plastic peg (10) arranged in a borehole (4) of a wall (3), where the peg has a peg shank (11) and an impact screw (16) provided in a front end of the peg shank. The impact screw provided with a head (18) is stuck in a case part (6). The peg is prestressed against an assembling part (1) under deformation of a retaining plate (7). The impact screw is engaged or driven into an end position, without a direct contact of the head of the screw to the case part and the retainer plate. An independent claim is also included for a device for assembling parts such as insulating plates.