Cable Tray Attachment Holes for One-Sided Cable Fixing

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Solution Overview

Problem

Existing cable trays require operators to access both sides of the tray to secure cables using cable ties, making the process tedious and inefficient.

Innovation Solution

A cable tray design featuring oblong holes and attachment holes with projecting tabs allows for one-sided cable fixation using cable clamps, along with orthogonal oblong holes for quick installation of separators.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If clamps are used to fix cables through two oblong holes, then cables are securely fixed to the cable tray, but the operator must access both sides of the tray making the operation tedious

Engineering Contradiction:

Improvecable fixing securityVSAvoidcable fixing operation

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The attachment orifice is segmented into distinct functional zones: a first part for clamp passage and a second part forming a stop. This segmentation allows the clamp to be installed from one side only, as the stop prevents it from passing through completely, eliminating the need for dual-sided access while maintaining secure fixation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The tongue structure acts as an intermediary element between the clamp and the cable tray body. It provides the stop function that prevents clamp removal through the tray, serving as a mechanical mediator that enables one-sided installation while ensuring reliable cable attachment.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If traditional oblong holes are used for cable attachment, then cables can be fixed, but the process is time-consuming and inefficient

Engineering Contradiction:

Improvecable attachmentVSAvoidcable installation speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The attachment orifice is divided into a first part allowing clamp passage and a second part forming a stop. This segmentation enables rapid one-sided installation as operators only need to access one face of the cable tray, significantly improving installation productivity while ensuring reliable cable attachment through the stop mechanism.

Inventive Principle:

Principle #1Segmentation

3Strength

If clamps pass through two oblong holes for cable fixation, then cables are firmly secured, but the operation becomes complex requiring access to opposite faces

Engineering Contradiction:

Improvecable fixation strengthVSAvoidfixing operation complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The attachment orifice is segmented into a first part for clamp entry and a second part forming a stop. This simplifies the fixing operation to a single-sided process while maintaining strong cable fixation, as the stop ensures the clamp remains securely in place without requiring complex dual-sided assembly procedures.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The tongue structure serves as an intermediary that simplifies the fixing operation. It provides the stop function that prevents clamp removal, reducing operational complexity from dual-sided access to single-sided installation while ensuring robust cable attachment.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentEP3435500B1Cable path with fastener holes

Publication Date: 2026.04.29 ALSTOM HOLDINGS SA

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AI summary

The present invention relates to a cable track (10) extending along a main direction (XX), having attachment holes (22), each attachment hole (22) having at least one edge (24), as well as a tab (26) projecting from the edge (24) and comprising a first part (28) proximal to the edge (24) and a second part (30) distal.