Handheld Cable Hoist with Cinch Brake

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Solution Overview

Problem

Existing fixed hoist/winch systems for ascending and descending people or objects are cumbersome, costly to transport, and limited in their range of applications due to their fixed position, restricting easy transport and repositioning.

Innovation Solution

A handheld device equipped with a motor, gearbox, and cinch brake assembly that allows for the efficient ascension and descent of a cable, featuring a detachable battery and variable speed control, enabling flexible and portable operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a fixed hoist/winch is used for ascending and descending, then safety and reliability are ensured, but portability and ease of transport are compromised

Engineering Contradiction:
ImprovesafetyVSAvoidportability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent transforms the fixed, stationary nature of traditional hoists into a dynamic, mobile system by integrating the hoisting mechanism with a handheld device that can be moved to different locations. The motor-driven reel and cable system maintains safety functionality while gaining portability through this dynamic redesign.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The hoisting system is segmented into modular components including a handheld control unit, motor assembly, reel, and cable system. This segmentation allows the device to be transported as separate manageable parts and assembled where needed, improving portability while maintaining the integrated safety functions of a complete hoisting system.

Inventive Principle:
Principle #1Segmentation

2Force

If a fixed hoist/winch is used for ascending and descending, then lifting capability is maintained, but adaptability to different locations is limited

Engineering Contradiction:
Improvelifting capabilityVSAvoidrange of applications
Core Design Contradiction:
ForceVSAdaptability or versatility

Solution Approach 1:

The handheld device is designed as a universal hoisting solution that can be applied to multiple different locations and applications. The mobile design with handheld control allows the same device to serve various lifting needs across different sites, eliminating the requirement for multiple fixed installations and expanding the range of applicable scenarios.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Stability of the object's composition

If traditional fixed position devices are used, then structural stability is ensured, but ease of repositioning is compromised

Engineering Contradiction:
Improvestructural stabilityVSAvoidease of repositioning
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The patent implements a dynamic design where the hoisting mechanism transitions from a permanently fixed structure to a mobile handheld device. The device maintains structural stability during operation through its engineered motor, reel, and cable system, while the handheld nature enables easy repositioning to different work locations, resolving the contradiction between stability and repositioning ease.

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

The handheld device provides a cost-effective and efficient means to ascend and descend loads, adhering to safety standards, with extended battery life and adaptable speed control, enhancing usability across various applications.

Implementation Method 1

a motor that is operably connected to a gearbox shaft

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Implementation Method 2

a cinch brake assembly...such that the cinch brake assembly prevents movement of the cable through the first housing

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 3

A drive shaft is connected to the gearbox shaft with shaft drive bearings

Methodology Applied
Scientific EffectRolling friction reduction: Ball Bearing

Data Source

PatentUS10850956B1Hand held device
Publication Date: 2020.12.01 MACLEAN JAMESON LLC
  • US10850956B1 patent drawing
  • US10850956B1 patent drawing
  • US10850956B1 patent drawing

AI summary

A handheld device is adapted to ascend and descend a cable. The handheld device includes a motor that is mechanically coupled to a gearbox shaft. A drive shaft is connected to the gearbox shaft with shaft drive bearings. A first housing is mechanically coupled to the motor and surrounding the drive shaft. The housing further includes a top side, a bottom side and at least one other side therebetween. A top housing opening and a side housing opening are arranged on the first housing. A cinch brake assembly, connected to the first housing. The cable is fed through the first housing, around the drive shaft, out of the first housing and through the cinch brake assembly such that the cinch brake assembly prevents movement of the cable through the first housing.