Cable Bundle Holder with Push-Bar Locking for Fast Tray Assembly

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Solution Overview

Problem

Existing cable retention devices for cable trays in vehicles, particularly aircraft, require complex construction methods, compromise electromagnetic and electrical protection, and fail to uniformly clamp cables of varying diameters, leading to potential failure and assembly errors.

Innovation Solution

A cable retention device with a support having parallel faces and retractable fasteners, featuring a central guide hole and movable pusher with an anti-return locking mechanism, allowing adjustable pressure on the cable bundle and tool-free assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cables are fastened individually to the cable track, then securement is achieved, but time consumption and labor costs increase significantly

Engineering Contradiction:

Improvecable securementVSAvoidinstallation time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

Multiple individual cable fastenings are merged into a single bundle fastening system. The device clamps an entire bundle of cables together at once using one fastening mechanism, replacing the need to fasten each cable separately to the cable track.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The cable management system is segmented into two functional parts: a bundling device that groups multiple cables together, and a fastening mechanism that secures the bundle. This segmentation allows the system to handle multiple cables as a single unit rather than treating each cable independently.

Inventive Principle:

Principle #1Segmentation

2Reliability

If individual cable fastenings are used, then each cable is secured, but the number of fastenings required increases

Engineering Contradiction:

Improvecable securementVSAvoidnumber of fastenings

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The bundling device serves multiple functions: it groups multiple cables together, maintains their relative positions, and provides a single attachment point for fastening to the cable track. This multi-functionality reduces the overall number of components needed.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Productivity

If cables are bundled and fastened as a group, then installation time is reduced, but control over individual cable positions decreases

Engineering Contradiction:

Improveinstallation speedVSAvoidcable position control

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The bundling device provides different levels of control at different locations: cables are tightly bound together in the bundling section to maintain relative positions, while the fastening mechanism provides secure attachment to the cable track. This local differentiation of constraints allows both efficient installation and proper cable positioning.

Inventive Principle:

Principle #3Local quality

Data Source

PatentEP4305718B1Device for holding a bundle of cables, cable track equipped with at least one such device, and assembly method

Publication Date: 2026.05.06 LATELEC

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AI summary

Device for holding a bundle of cables (12) in a duct (18) of a cable track, comprising a bottom (18f) surrounded by two parallel flanks (14) that delimit an opening oriented towards a direction referred to as upper along a main axis, this device comprising a support (2) comprising fasteners intended to be fastened to the flanks of the duct (14), this support (2) having an axial guide that receives a push bar (6) comprising a base (10) that projects from the lower face of the support (2), and a non-return system for locking the push bar, allowing it to advance downwards while preventing it from moving backwards.