Reduced-Pull Leash Lateral Force Mechanism
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Solution Overview
Problem
Conventional leashes can lead to injuries in both dogs and their walkers due to pulling, as untrained dogs may exert significant force, causing choking, falls, and joint strains.
Innovation Solution
A reduced-pull leash system comprising an extendible first leash section and a longer second leash section, where the first leash section extends until the second leash section becomes taut, generating a lateral force to discourage the dog from pulling by creating rotational and lateral forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional leash is used, then the dog can be guided in direction of travel, but the dog may pull or drag the person holding the leash causing injuries
Solution Approach 1:
The leash is divided into two distinct sections: a first leash section that extends from the walker and a second leash section that is longer and connects to the dog harness at a front location. This segmentation allows each section to serve different functions - the first section provides initial connection while the second section generates lateral force to counter pulling.
Solution Approach 2:
The invention introduces a lateral dimension to the leash system by connecting the second leash section to the dog's front location rather than just the back or center. This creates a lateral force component that pulls the dog sideways when it pulls forward, effectively countering the pulling force in a different dimensional direction.
2Force
If the first leash section is made extendible, then the dog pulling force is distributed over a longer distance reducing the pull on the walker, but the device complexity increases
Solution Approach 1:
The first leash section is designed to be extendible, allowing it to dynamically adjust its length when the dog pulls. This extendibility distributes the pulling force over a longer distance and reduces the instantaneous force on the walker, while the system automatically returns to its original configuration when the dog stops pulling.
3Force
If the second leash section is made longer than the first, then more lateral force can be generated to discourage pulling, but the overall leash length and complexity increase
Solution Approach 1:
The second leash section is specifically designed with different characteristics than the first section - it is longer and connects to the dog's front location to generate lateral force. This local differentiation allows each section to optimize its specific function while working together as an integrated system.
Data Source
AI summary
In some embodiments, a reduced-pull leash device includes a first extendible leash section and a second leash section. The second leash section is longer than the unextended first leash section. The first leash section's first end is configured to couple to or near the second leash section's first end. The first leash section's second end is configured to couple to a harness at a location on top of a dog. The second leash section's second end is configured to couple to a harness at a front location of the dog. The lengths of the first and second leash sections are configured so the first leash section extends when a dog pulls on the leash until the second leash section becomes taut. Once the second leash section becomes taut, a lateral force is generated on the dog to pull the dog laterally. Numerous other embodiments are provided.