Dual-Purpose Trailer Jack and Strap Winch Drill Drive
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Solution Overview
Problem
Manual operation of trailer jacks and strap winches is labor-intensive and requires significant force and multiple rotations, making the coupling and decoupling of trailers and rewinding of cargo straps cumbersome.
Innovation Solution
A multi-purpose drive system utilizing a jack adapter and a battery-powered drill to power the operation of trailer jacks and strap winches, eliminating the need for manual labor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation is used to raise or lower the trailer jack, then the device structure remains simple, but the labor intensity and number of rotations required increase significantly
Solution Approach 1:
The drive shaft is designed with universal compatibility to accept multiple types of power sources including manual handles, power winders, and strap winches. This allows the same jack mechanism to be operated manually or with powered assistance depending on the situation, reducing labor intensity without requiring separate systems for each operation mode.
Solution Approach 2:
A power winder device serves as an intermediary mechanism between the user and the jack drive shaft. The power winder reduces the rotational effort required by providing mechanical advantage through its gear system, making it easier to raise or lower the trailer jack while maintaining compatibility with the existing jack structure.
2Productivity
If manual rotation is used to wind cargo straps on the winch, then the winch structure remains simple, but the force and time required for strap winding increase
Solution Approach 1:
The strap winch is designed with a universal drive interface that can accept both manual operation and powered operation from the same power winder device. This multi-functionality allows the winch to operate in high-productivity powered mode during cargo loading/unloading while maintaining structural simplicity for manual operation during lighter tasks or maintenance.
Solution Approach 2:
The manual mechanical rotation required to wind straps is replaced by a powered winder mechanism that uses an electric motor or other power source. This substitution dramatically increases winding speed and reduces the force required, improving productivity while the modular design keeps the overall system complexity manageable.
3Productivity
If a dedicated power winder is used for each jack and winch, then the operation efficiency improves, but the device complexity and cost increase
Solution Approach 1:
A single power winder device is designed with universal adaptability to operate multiple different jack and winch mechanisms. The power winder can be detached and reused across different trailers and equipment, eliminating the need for dedicated powered devices for each jack or winch. This reduces overall system complexity and cost while maintaining high operation efficiency when the power winder is in use.
Data Source
AI summary
The Drive System consists of a Dual-Purpose Driver (100) and an Adapter 200, allowing a battery powered drill to drive either a Sidewind Dropleg Trailer Jack or a Strap Winch. The Dual-Purpose Driver (100) inserts into a Strap Winch or into the Adapter 200 which replaces the handle of a Sidewind Dropleg Trailer Jack. The hex rod (10) inserts into the battery powered drill. Spring loaded buttons (50) protruding from the hollow cylinder (20) of the Dual-Purpose Driver 100 engage the Strap Winch, while slots (40) slide over a pin 140 in the Adapter 200.