Cable Guide Hold-Down Device for Vertical-to-Horizontal Transitions

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

In cable traction transportation systems, the vertical movement of the cable relative to the pressure-roller zone causes detachment issues during transitions from vertical to horizontal paths, leading to potential cable derailment and deposition failures due to excessive vertical movement (δ) affecting horizontal roller contact.

Innovation Solution

A pressure device with a coupled roller-holder system, where the helical compression spring and spring guide are connected directly to the pressure-roller, allowing adjustable force balance through carefully chosen rotation points and spring force, reducing the vertical movement (δ) by synchronizing the counter-roller and pressure-roller movements to create necessary free space for cable passage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the cable vice detaches the cable from the pressure-roller to allow passage, then the vice mouth can pass through, but the vertical movement (δ) becomes excessive causing cable deposition failures in horizontal sections

Engineering Contradiction:

Improvevice mouth passageVSAvoidcable deposition

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The pressure-roller is made movable instead of fixed, allowing it to dynamically adjust its position vertically. The roller-holder with rotation point enables the pressure-roller to move upward during vehicle passage and return to contact the cable afterward, automatically adapting to the dynamic requirements of cable conveyance while preventing excessive vertical movement δ

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The roller-holder acts as an intermediary mechanism between the fixed support and the pressure-roller. It provides the rotational degree of freedom that mediates between the need for cable contact and the need for vice mouth passage, allowing controlled vertical movement of the pressure-roller without excessive displacement

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the vice size is reduced to minimize vertical movement, then cable deposition improves, but the counter-roller and pressure-roller may both escape the vice mouth during passage

Engineering Contradiction:

Improvecable depositionVSAvoidvice mouth passage

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

Both the counter-roller and pressure-roller are made movable with coupled motion through the roller-holder mechanism. This dynamic coordination ensures that when the vice mouth passes, both rollers move upward together, maintaining their relative positions and preventing either from escaping the vice mouth, while still allowing necessary passage

Inventive Principle:

Principle #15Dynamics

3Reliability

If fixed pressure-rollers are used to prevent cable detachment, then cable stability improves, but the vertical movement (δ) cannot be reduced leading to deposition failures

Engineering Contradiction:

Improvecable stabilityVSAvoidvertical movement control

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The fixed pressure-roller is replaced with a movable pressure-roller that can dynamically adjust its vertical position. The roller-holder with rotation point provides the mechanical means for this movement, allowing the system to maintain cable stability through controlled contact while reducing excessive vertical movement δ that causes deposition failures

Inventive Principle:

Principle #15Dynamics

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

This solution effectively reduces the vertical movement (δ) of the cable, ensuring stable cable deposition and preventing derailment by maintaining contact between the cable and rollers, even during vehicle passage and oscillations, while providing redundant safety mechanisms for secure cable guidance and deposition.

Implementation Method 1

the helical compression spring including the spring guide is connected directly with the pressure-roller

Methodology Applied

Scientific EffectHelical compression spring: Spring

Implementation Method 2

overcoming correspondingly the elastic force of the helical compression spring

Methodology Applied

Scientific EffectElastic force: Elasticity

Implementation Method 3

The roller-holder has respective members that accompany the revolving arm of the pressure-roller in the movement

Methodology Applied

Scientific EffectRotation:

Implementation Method 4

Owing to the right choice of the rotation points and of a respective force of the compression spring, which is adjustable, the total system finds a balance of forces that depends on the agent deviation force of the cable

Methodology Applied

Scientific EffectForce balance: Balance

Data Source

PatentUS8082853B2Hold-down device for the cable guide in cable-drawn transport systems

Publication Date: 2011.12.27 LEITNER SPA VIPITENO

AI summary

A pressure device for conduction of the cable in cable traction transportation systems including a pressure-roller (12) of the cable (7) supported elastically on a fixed support (2) and a counter-roller (6) supported on the fixed support (2) is described. In accordance with this invention the counter-roller (6) is supported in a revolving manner on a roller-holder (5) articulated at one end to the fixed support (2) and possesses at the other end guide means (8, 9) that engage as a running guide an arm (10) that bears in a revolving manner at one end the pressure-roller (12) on the side opposite the counter-roller (6) and is articulated at the other end to the fixed support (2) with the arm (10) being pressed by elastic means in the direction of exertion of pressure of the pressure-roller (12) on the cable (7).