Rope Stuffing Device With Drive Wheel Mechanism
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Solution Overview
Problem
The existing methods for stuffing ropes or cords into water rescue throw bags and life safety bags are slow, inconvenient, and prone to tangling and snagging, especially when performed by inexperienced personnel.
Innovation Solution
A stuffing device and method utilizing a housing with a drive wheel and idler wheel mechanism, along with biasing elements and a turning member, that allows for quick and consistent stuffing of ropes or cords into bags while minimizing tangling and snagging issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If hand stuffing technique is used, then the process is simple and requires no special equipment, but the stuffing speed is slow and productivity is low
Solution Approach 1:
The patent introduces a stuffing device as an intermediary tool between the operator and the bag. The device includes a tube that guides the rope into the bag, wheels that rotate to feed the rope, and a handle that the operator controls. This intermediary mechanism automates the stuffing process while keeping the overall system relatively simple, thereby increasing productivity without requiring complex equipment.
2Reliability
If hand stuffing technique is used, then the equipment requirement is minimal, but the consistency of stuffing quality is poor and reliability is low
Solution Approach 1:
The stuffing device is designed to perform the stuffing operation automatically once the rope is fed into the tube. The wheels rotate to feed the rope into the bag without requiring continuous manual manipulation, and the guide tube ensures the rope is properly directed. This self-service mechanism ensures consistent stuffing quality while minimizing the complexity of operation and equipment.
3Productivity
If coiling and pushing technique is used, then the stuffing speed is faster, but tangling and snagging problems occur and reliability decreases
Solution Approach 1:
The stuffing device segments the stuffing process into distinct functional components: the guide tube that directs the rope, the wheels that feed the rope in a controlled manner, and the handle that operates the mechanism. This segmentation allows each component to perform its specific function efficiently, maintaining high stuffing speed while preventing tangling and snagging through proper rope guidance and controlled feeding.
4Ease of operation
If hand stuffing technique is used, then the equipment complexity is low, but the operator skill requirement is high and ease of operation is reduced
Solution Approach 1:
The stuffing device acts as an intermediary that translates simple operator input (turning the handle) into the complex sequence of actions required for proper stuffing. The device includes a guide tube that automatically directs the rope, wheels that control the feeding rate, and a mechanism that ensures consistent positioning. This intermediary mechanism reduces the skill requirement for the operator while maintaining relatively simple equipment.
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 solution enables faster, more consistent, and efficient stuffing of ropes or cords into bags, reducing tangling and snagging problems, even when used by inexperienced individuals.
Implementation Method 1
one or more biasing elements in the housing which urge the idler wheel toward the drive wheel
Data Source
AI summary
A stuffing device and method for stuffing a rope or other cord into a water rescue throw bag, a life safety bag, or other bag wherein the stuffing device can be held in or above the mouth of the bag by hand or using a stand, the device can be produced in small or large sizes for use with bags and cords of different size, and the device can be operated by hand or by using a power tool.