Dog Restraint Pulley System for Walker Injury Prevention
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Solution Overview
Problem
Conventional animal restraints, such as collars and harnesses, fail to effectively prevent dogs from pulling, leading to potential injuries for human walkers, and choke collars can restrict breathing, potentially increasing the dog's strength and stamina, exacerbating the issue.
Innovation Solution
A collar/leash combination restraint system featuring a hollow connector affixed to the collar, where the leash is wrapped around the dog's tail and fed through the connector, forming a pulley configuration that utilizes the dog's weight and momentum to control the animal when it pulls, thereby reducing the strain on the human walker.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If choke collars or harnesses are used to reduce pulling, then the dog's pulling force is temporarily reduced, but the dog's breathing is restricted and the animal builds strength and stamina over time
Solution Approach 1:
The patent introduces an intermediary device (the pulley system with leash wrapped around the tail) that mediates between the dog's pulling force and the walker. Instead of directly restricting the dog's breathing like a choke collar, the system uses the tail-wrapped leash as an intermediary to redirect the pulling force, allowing the dog to breathe freely while still controlling the walker.
Solution Approach 2:
The patent converts the harmful effect of the dog's pulling force into a beneficial control mechanism. By wrapping the leash around the tail and using the hollow connector as a pulley, the pulling force is transformed into a leverage system where the dog's own momentum and weight become the controlling factor, rather than relying on restrictive collars that cause harm.
2Reliability
If conventional collars and harnesses are used, then the dog can be restrained, but the device complexity increases and does not effectively prevent pulling
Solution Approach 1:
The patent merges the collar and leash into a single integrated system. The hollow connector is attached to the collar, and the leash is wrapped around the tail and threaded through the hollow connector, creating a unified restraint mechanism that combines the functions of both collar and leash without requiring separate complex devices.
Solution Approach 2:
The restraint system is designed to be self-regulating. When the dog pulls, the leash wrapped around the tail naturally tightens and provides control through the pulley configuration. The system uses the dog's own pulling action to engage the restraint mechanism, eliminating the need for complex electronic controls or multiple components.
3Ease of operation
If one uses only one arm to walk the dog, then the ease of operation is improved, but the risk of injury increases due to tug-of-war effect
Solution Approach 1:
The pulley system acts as an intermediary that reduces the direct mechanical advantage the dog has over the walker. By routing the leash through the hollow connector and wrapping it around the tail, the system creates a mechanical advantage that distributes the pulling force, reducing the strain on the walker's arm while maintaining ease of 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
The system effectively reduces the risk of injury to the human walker by leveraging the dog's momentum to encourage a sitting position when it pulls, minimizing excessive pulling and allowing the dog to stand when it ceases pulling, thus providing a safer walking experience.
Implementation Method 1
This forms a pulley configuration that utilizes the weight and momentum of the dog to leverage control of the animal when dog begins to pull its human walker
Implementation Method 2
This forms a pulley configuration that utilizes the weight and momentum of the dog to leverage control of the animal when dog begins to pull its human walker
Data Source
AI summary
A collar/leash combination restraint system may include a hollow connector affixed to a collar. The leash is wrapped around a dog's tail and fed through the hollow connector. This forms a pulley configuration that utilizes the weight and momentum of the dog to leverage control of the animal when dog begins to pull its human walker.