Compact Zip-Line Braking System with Anti-Return Trapping

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Solution Overview

Problem

Existing zip-line braking systems are either dependent on operators or external cables for activation, are large and difficult to install, and lack an anti-return trapping device to prevent the sliding car from returning, with many relying on friction for braking which leads to aggressive and unsafe stops at high speeds.

Innovation Solution

A compact, automatic braking system with internal damping and anti-return capabilities that dissipates and transfers energy through accordion and hinge movements, using integrated springs and a rotary joint to ensure smooth and safe braking without external elements, and includes a universal anti-return trapping device that can be detached and positioned along the zip-line.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If external springs are used for braking, then braking force is provided, but the system becomes large and difficult to install

Engineering Contradiction:
Improvebraking forceVSAvoidsystem size and installation complexity
Core Design Contradiction:
ForceVSDevice complexity

Solution Approach 1:

The patent integrates the springs inside the braking device housing, nesting the spring mechanism within the existing structure. This eliminates the need for external spring mounting and reduces overall system size, directly resolving the contradiction between providing braking force and maintaining compact dimensions.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent combines multiple functions (braking force generation, energy absorption, and structural support) into a single integrated braking device. By merging the spring mechanism with the braking block and housing, the system achieves compact dimensions while maintaining effective braking force.

Inventive Principle:
Principle #5Merging (Combining)

2Force

If friction-based braking is used, then braking action is achieved, but wear occurs on friction elements

Engineering Contradiction:
Improvebraking actionVSAvoidmaintenance needs due to wear
Core Design Contradiction:
ForceVSEase of repair

Solution Approach 1:

The patent converts the kinetic energy that would otherwise be dissipated as heat and wear into useful elastic potential energy stored in the springs. The braking action is achieved through the spring mechanism rather than direct friction, eliminating wear on friction elements while maintaining effective braking.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent replaces the traditional friction-based mechanical braking system with a spring-based elastic energy storage and release mechanism. This substitution eliminates the wear inherent in friction-based systems while providing equivalent or superior braking action.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If braking systems depend on operators or external cables for activation, then braking control is achieved, but the system requires external elements and operators

Engineering Contradiction:
Improvebraking controlVSAvoidexternal cables and operators
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent designs the braking device to activate automatically upon impact without requiring external cables or operator intervention. The kinetic energy of the moving object directly triggers the spring mechanism, making the system self-activating and eliminating the need for external control elements.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The springs are pre-loaded and positioned within the braking device, ready to activate immediately upon impact. This preliminary preparation of the braking mechanism ensures automatic activation without requiring external signals or operator action, simplifying the overall system.

Inventive Principle:
Principle #10Preliminary action

4Reliability

If large arrival platforms are used to withstand impact, then safety is improved, but installation becomes difficult

Engineering Contradiction:
ImprovesafetyVSAvoidinstallation difficulty
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent segments the safety function into a compact, self-contained braking device that can be independently installed. Rather than requiring a large arrival platform to absorb impact, the braking function is separated into a modular unit that provides safety without demanding large installation space or complex structural support.

Inventive Principle:
Principle #1Segmentation

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 system provides effective and safe braking for users at various weights and speeds, reducing maintenance needs and installation complexity, as it automatically activates without external cables or operators, ensuring gradual and total braking without wear on friction elements.

Implementation Method 1

a plurality of elastic elements (221) that connect the upper rolling elements (219) to the lower rolling elements (220), wherein said plurality of elastic elements (221) allow the entry of the first braking block (204) to the second braking block (205), generating an accordion movement

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS11794793B2Compact braking system for zip-line
Publication Date: 2023.10.24 VALENZUELA ROMERO LUIS GUILLERMO
  • US11794793B2 patent drawing
  • US11794793B2 patent drawing
  • US11794793B2 patent drawing

AI summary

A compact braking system for zip-line that brakes a sliding car including an anti-return trapping device that traps the sliding car preventing its return by a zip-line cable and a braking device that transfers and dissipates the energy of the arrival impact of the slide car without the use of one or more cables and/or elements external to it and without the activation of any operator.