Integrated Winch and Hoist for Self-Attachment
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Solution Overview
Problem
Existing hoists require additional lifting devices, cranes, or rigging to be attached to elevated points, making them cumbersome and unsafe, especially for heavy loads, as traditional winches are unstable due to gear-based braking systems.
Innovation Solution
A portable hoist with an integrated winch that includes a motor, cable, and hook, allowing for self-attachment to elevated points using a cable guide and safety pin mechanism to secure the hoist in place, reducing manpower and enhancing safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a traditional hoist is used, then it can lift heavy loads, but it requires additional lifting devices, cranes, or rigging to attach to elevated points
Solution Approach 1:
The patent combines a hoist and a winch into a single integrated portable hoist unit. The winch is mounted to the exterior of the hoist housing, allowing the unit to attach to elevated points using the winch's cable and hook system, eliminating the need for separate lifting devices, cranes, or rigging equipment while maintaining heavy load lifting capability
Solution Approach 2:
The integrated portable hoist performs multiple functions: the hoist component lifts heavy loads, while the attached winch component enables self-attachment to elevated points and positioning of the hoist unit. This multi-functionality replaces what previously required multiple separate pieces of equipment
2Weight of moving object
If a traditional winch is used for self-attachment, then it is lighter and portable, but the gear-based braking system makes it unstable for suspended loads
Solution Approach 1:
The patent merges the advantages of both hoists and winches by integrating a winch onto a hoist unit. The hoist provides the stable braking system needed for reliable load suspension, while the attached winch provides the portability and self-attachment capability. This combination resolves the stability issue of traditional winches while maintaining their portability advantage
3Speed
If the winch motor has higher capacity, then it can pull the hoist faster, but it increases tension on the cable and reduces safety
Solution Approach 1:
The patent uses a lower capacity winch motor that provides just enough power to pull the hoist unit to elevated points, rather than using an oversized motor. This partial action approach is sufficient for the positioning function while minimizing cable tension and safety risks. The hoist's main motor then handles the heavy lifting operation
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
Enables safe and efficient self-attachment of the hoist to elevated points without additional lifting devices, reducing manpower and stabilizing the load, while the winch's lower capacity motor and pulley system minimize tension and ensure secure positioning.
Implementation Method 1
A pulley is preferably positioned between the first and second side of the cable guide. The pulley is configured to direct the winch line and to reduce the tension on the winch.
Data Source
AI summary
A portable hoist and a winch. The winch and hoist can be integrated in a single housing or can be attached to one another. The portable hoist provides a user with the ability to hang the portable hoist without the use of other lifting devices, cranes, or rigging and allows the user to do it in a safer manner with less man power. The portable hoist can have a safety pin configured to secure the winch hook in a secured position so as to allow the hoist to lift increased loads.