Dual-Grip Leash Handle Force Distribution
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Solution Overview
Problem
Conventional single-grip animal leashes concentrate the force of a pulling animal on one hand and arm, leading to injuries such as repetitive strain, neck, and back injuries, and limit the user's ability to control the animal effectively.
Innovation Solution
A dual-grip leash handle system with a tubular handle body, two grips positioned laterally adjacent to each other, and a central bore filled with a filler to distribute the force across both hands and arms, allowing both hands to control the animal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single-grip handle is used, then the device complexity is reduced, but the force concentration causes ergonomic injuries and limits control capability
Solution Approach 1:
The handle is divided into multiple grip sections (first grip section, second grip section, and third grip section) positioned at different locations along the tubular handle body. This segmentation allows users to distribute force across multiple hand positions, improving control capability while preventing the concentration of force on a single point that causes ergonomic injuries.
2Object-affected harmful factors
If a single-grip handle is used, then the manufacturing process is simpler, but the force transmission causes injuries to hand, arm, neck and back
Solution Approach 1:
The invention transitions from a single-point grip (zero-dimensional contact) to a multi-point distributed grip along the length of the handle body (one-dimensional distribution). The first, second, and third grip sections are positioned at different locations along the tubular handle, creating a dimensional distribution of force contact points that disperses harmful forces across multiple anatomical regions.
3Ease of operation
If a dual-grip handle is used, then the force distribution improves ergonomics, but the device structure becomes more complex
Solution Approach 1:
The tubular handle body serves multiple functions: it provides structural support, contains the cord system (first cord, second cord, third cord), accommodates multiple grip sections for different hand positions, and distributes forces across the user's body. This multi-functionality consolidates what could be separate components into a single integrated structure, reducing overall device complexity while maintaining ergonomic benefits.
Data Source
AI summary
A multi-grip handle apparatus for an animal leash or harness includes a tubular handle body having a first end with a first opening and a second end with a second opening. An annular handle body surface extends between the first end and second end and a central bore extends between the first and second openings. A first cord extends from the first opening, and a second cord extends from the second opening. The first and second cord are secured by a clasp which secures a third cord. The third cord is configured to connect to at least one animal leash, animal collar or animal harness. The handle body surface includes a first grip section laterally adjacent and spaced apart from a second grip section. The central bore contains a filler that prevents the first and second cords from contacting the first and second openings, respectively.