Dog Harness with Curved Coupling Members for Friction Reduction
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Solution Overview
Problem
Dog harnesses face issues with preventing escape, undue stress, and difficult adjustment due to loose fitting and poorly designed structural elements, especially when a dog tries to move forward or backward against the leash, leading to potential slipping out and friction-related difficulties during use.
Innovation Solution
A dog harness with a freely moving leash strap system that tightens and fastens the torso when the dog tries to escape, featuring coupling members with a ring and rod design that allows smooth passage and adjustment, reducing friction and stress on the dog, and enabling easy adjustment without causing undue tension.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the harness is tightened to prevent the dog from escaping, then the reliability of preventing escape is improved, but the dog may experience undue stress
Solution Approach 1:
The harness employs dynamic adjustment mechanisms that allow the straps to automatically tighten when the dog pulls against the leash, creating a secure fit that prevents escape. When the dog stops pulling, the harness naturally loosens, eliminating continuous pressure and stress on the animal. This dynamic response ensures reliability only when needed.
2Reliability
If the harness is tightened to prevent escape, then the reliability of preventing escape is improved, but the ease of operation for adjustment is worsened
Solution Approach 1:
The harness features self-adjusting straps that automatically tighten or loosen based on the dog's movement and pulling force, eliminating the need for manual adjustment during use. The coupling members are designed to engage and disengage easily through simple hand manipulation, allowing quick adjustments without requiring tools or complex operations.
3Reliability
If the leash strap is fixed to prevent movement, then the reliability of control is improved, but the ease of operation for adjustment is worsened
Solution Approach 1:
The leash strap is designed with dynamic coupling members that allow controlled movement and adjustment. The strap can be easily loosened or tightened by hand manipulation of the coupling members, providing both secure control when needed and easy adjustability when the dog is stationary. The friction reduction features enable smooth operation during adjustment.
4Device complexity
If the coupling member has a flat profile for simple structure, then the device complexity is reduced, but the ease of operation for adjustment is worsened due to friction
Solution Approach 1:
The coupling members incorporate curved or rounded surfaces instead of flat profiles, reducing friction between the strap and the coupling member during adjustment. This curvature allows the strap to slide more smoothly through the coupling member, making manual adjustment easier while maintaining a relatively simple overall structure. The rounded geometry naturally reduces contact friction compared to flat surfaces.
Data Source
AI summary
A dog harness includes a harness body, having a front potion and a rear potion, first and second front straps, first and second rear straps, first and second coupling members, first and second leash straps and a connecting means, wherein the first leash strap loops through the first coupling member such that the first leash strap is adapted to move relative to the first coupling member, wherein the second leash strap loops through the second coupling member such that the second leash strap is adapted to move relative to the second coupling member. Each of the coupling members include a ring and a rod. The coupling members are curved to lessen the amount of friction experienced by the leash straps when the leash straps loop through the coupling members.


