Cable Holder Spacer Prevents Hose Constriction

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Solution Overview

Problem

Cable holding arrangements often constrict protective hoses due to the high wrapping force of cable tie straps, leading to potential damage and relative displacement between the hose and cables.

Innovation Solution

A sleeve-like spacer with an outer diameter matching the protective hose's inner diameter is used to prevent constriction, while being securely fastened to the cables, ensuring the hose is firmly supported and preventing relative movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a cable tie strap is used to secure the protective hose with high wrapping force, then the cable retention is improved, but the protective hose may be constricted or damaged

Engineering Contradiction:
Improvecable retentionVSAvoidhose constriction
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

A spacer element is introduced as an intermediary component between the cable tie strap and the protective hose. The spacer has an outer diameter that corresponds to the inner diameter of the protective hose, creating a support layer that distributes the wrapping force and prevents direct constriction of the hose while maintaining secure cable retention.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If the cable tie strap is wrapped strongly to prevent relative displacement, then the cable fixation is improved, but the protective hose may be damaged

Engineering Contradiction:
Improvecable fixationVSAvoidhose integrity
Core Design Contradiction:
Stability of the object's compositionVSStrength

Solution Approach 1:

The spacer acts as a mediator that allows strong wrapping forces to be applied without transferring them directly to the protective hose. The spacer's structure absorbs and distributes these forces, enabling secure cable fixation while preserving hose integrity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The spacer provides beforehand cushioning by being positioned between the cable tie strap and the protective hose before the wrapping force is applied. This pre-positioned cushioning element prevents direct contact and potential damage from the strong wrapping forces.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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 spacer effectively prevents hose constriction and maintains the hose's position, ensuring secure cable retention without damaging the hose, even under strong wrapping forces, and allows for easy assembly and attachment.

Implementation Method 1

the spacer consists of an elastically deformable material and has an axially continuous longitudinal slot. In this way, the spacer does not have to be pushed over a large part of the cable, but can be attached directly to the cable or cables at the intended point with elastic expansion.

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP2054984A2Cable holder arrangement
Publication Date: 2009.05.06 CONTINENTAL AUTOMOTIVE GMBH

AI summary

The invention relates to a cable holder arrangement, comprisign a protective tube (2), through which one or more cables are run with radial play, a cable retainer strap (4), arranged on a holder element at one end thereof and enclosing the protective tube (2) and pulled with the free end region thereof through an opening (7) on the holder element to make enclosing contact with the protective tube (2) and prevented from making a movement in the direction of release of the enclosing contact by a blocking means. The cable is enclosed by a spacer (9) in the region of the cable retainer strap (4) the outer diameter of which approximately corresponds to the inner diameter of the protective tube (2).