Strand Protective Plate With Clamping Jaws for Screw Retention

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Solution Overview

Problem

Clamping screws in electrical plugs can become loose during transport due to vibrations, leading to potential loss or the need for costly reattachment, as existing solutions like adhesive or thread deformation are time-consuming and inefficient.

Innovation Solution

A strand protective plate with clamping jaws on the contact region adjacent to the leadthrough opening, which securely fixes the clamping screw, preventing accidental loosening and the need for additional manufacturing steps like bonding or thread deformation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If adhesive or thread deformation is used to fix the clamping screw during transport, then the clamping screw is secured against unintentional disengagement, but the manufacturing process becomes more time-consuming due to additional work steps

Engineering Contradiction:
Improvesecurity of clamping screw during transportVSAvoidmanufacturing efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The clamping jaw is pre-formed on the strand protective plate to automatically secure the clamping screw during transport. This preliminary structural preparation eliminates the need for subsequent adhesive application or thread deformation operations, maintaining both reliability and productivity

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The clamping jaw structure enables the strand protective plate to automatically retain the clamping screw without requiring external securing methods. The screw is held in place by the mechanical interlocking action of the clamping jaw during assembly and transport, making the system self-securing

Inventive Principle:
Principle #25Self-service

2Ease of manufacture

If the clamping screw is loosely screwed into the strand clamping body during delivery, then assembly is simplified, but vibrations during transport cause the screw to come loose and potentially fall out

Engineering Contradiction:
Improvesimplicity of assemblyVSAvoidretention of clamping screw during transport
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The clamping jaw acts as an intermediary element between the clamping screw and the strand protective plate. It provides a mechanical retention structure that holds the screw in place during transport while allowing simple initial assembly, bridging the gap between ease of manufacture and transport reliability

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

The clamping jaws effectively retain the clamping screw in a fixed position, preventing unintentional disengagement during transport and eliminating the need for additional securing methods, thus ensuring secure clamping without additional manufacturing complexity.

Implementation Method 1

the clamping jaw or jaws bear against the clamping screw guided through the leadthrough opening in such a way that they retain the clamping screw in a clamping manner

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS20240250455A1Strand protective plate
Publication Date: 2024.07.25 NEUTRIK
  • US20240250455A1 patent drawing
  • US20240250455A1 patent drawing
  • US20240250455A1 patent drawing

AI summary

A strand protective plate for clamping a strand of an electric cable in a strand clamping body by means of a clamping screw which acts on the strand protective plate and is screwed into the strand clamping body, wherein the strand protective plate has a strand clamping tongue for bearing against the strand and a bent-over region and a contact region for bearing against the strand clamping body. The strand clamping tongue is connected by means of the bent-over region to the contact region, and a leadthrough opening for guiding the clamping screw through is arranged in the contact region. At least one clamping jaw fixedly clamps the damping screw which is guided through the leadthrough opening is configured on the contact region adjacently with respect to the leadthrough opening.