Press Tool Cover Plate Structure for Impact-Protected Guide Parts

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Solution Overview

Problem

Pressing tools for fittings are prone to damage from impact loads due to careless handling or falls, which can lead to incorrect pressing and economic losses, as the external guide parts are sensitive and vulnerable to bending or cracking.

Innovation Solution

The pressing tool incorporates cover plates that partially or completely cover the guide parts externally, providing protective stabilization and preventing damage from impacts, while maintaining a slim design and allowing for correct positioning and pressing functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If guide parts are made externally accessible for positioning, then ease of operation is improved, but vulnerability to impact damage increases

Engineering Contradiction:
Improvepositioning accuracyVSAvoidimpact damage
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

A cover plate is introduced as an intermediary protective element between the external environment and the guide parts. The cover plate has a recess that receives the guide part, creating a protective enclosure that shields the guide part from impact loads while still allowing it to perform its positioning function during the pressing operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The guide part is nested within a recess of the cover plate, creating a protective housing structure. This nesting arrangement allows the guide part to be protected from external impacts while remaining functional for positioning the pressing tool during operation.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If cover plates are added for protection, then reliability is improved, but device complexity increases

Engineering Contradiction:
Improvetool durabilityVSAvoidstructural complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The cover plate serves multiple functions simultaneously: it protects the guide part from impact loads, provides a structural housing for the pressing tool components, and maintains the overall structural integrity of the tool. This multi-functionality reduces the need for additional separate protective components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The protective function is merged into the existing cover plate structure of the pressing tool. Instead of adding a separate protective component, the design utilizes and reinforces the existing cover plate to provide impact protection, thereby minimizing the increase in device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3718695B1Press tool for a fitting with press tab
Publication Date: 2021.11.03 GEBERIT INT AG
  • EP3718695B1 patent drawingFigure 1
  • EP3718695B1 patent drawingFigure 2
  • EP3718695B1 patent drawingFigure 3

AI summary

The invention relates to a pressing tool for press fittings with a lateral pressing tab, wherein guide parts 18 are protected and stabilized by lateral cover plates 30.