Controlled Displacement Leash Element for Search Dog Harnesses
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Solution Overview
Problem
Existing dog harnesses for search dogs are not suitable for long-term use as they lack an element to limit the stretching of elastic portions, leading to overloading and potential breakage, and cause discomfort due to unintended leash movements and friction on the dog's body.
Innovation Solution
A leash-holding element with controlled displacement is integrated into the dog harness, featuring an elastic portion and a loop portion that limits stretching, positioned along the spine of the dog, with an underlay to absorb friction and prevent contact with the dog's body, ensuring the leash-holding element moves only parallel to the spine and withstands forces without displacing the harness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an elastic portion is used in the leash-holding element, then the comfort and adaptability to dog movement is improved, but the reliability and durability deteriorate due to overloading and potential breakage
Solution Approach 1:
The leash-holding element is designed with an elastic portion that dynamically adapts to the dog's movements during search work. The element can stretch and move along the spine axis, providing comfort and adaptability while maintaining structural integrity through controlled elasticity.
Solution Approach 2:
The elastic portion changes its physical state (stretching and retracting) in response to forces applied during dog movement. This parameter change allows the element to absorb shocks and adapt to varying loads without breaking, thereby improving both comfort and reliability.
2Adaptability or versatility
If the leash ring is located on the back of the dog for search work, then the adaptability to special work posture is improved, but harmful factors increase due to unintended leash movements and friction on the dog's body
Solution Approach 1:
An underlay is introduced as an intermediary element between the leash-holding element and the dog's body. This underlay absorbs friction and prevents direct contact between the elastic portion and the dog's skin, eliminating harmful factors while maintaining the adapted position for search work.
Solution Approach 2:
The harmful friction and unintended movements are extracted from the system by isolating the leash-holding element from direct body contact. The element is positioned to move independently along the spine axis without creating friction against the dog's body, separating the functional movement from harmful contact.
3Adaptability or versatility
If the elastic portion is allowed to stretch freely, then the adaptability to dog movement is improved, but the reliability deteriorates due to overloading and potential breakage
Solution Approach 1:
The elastic portion is designed to stretch dynamically within controlled limits during dog movement. The element adapts to movement while maintaining structural integrity through its elastic properties, allowing free movement within safe parameters.
Solution Approach 2:
The elastic portion changes its length parameter in response to applied forces, stretching to accommodate movement but returning to its original state. This controlled parameter change prevents permanent deformation and breakage while maintaining adaptability.
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 provides a comfortable and durable leash-holding system that reduces the load on search dogs, allowing them to focus on their work without distractions from leash movements, while extending the lifespan of the harness by preventing overstretching and abrasion.
Implementation Method 1
The leash-holding element with controlled displacement has an elastic design, stretching along the axis line, in line with the spine of the dog to a given extent
Implementation Method 2
an underlay to absorb friction and prevent contact with the dog's body
Data Source
AI summary
A dog harness is provided with a leash-holding element with controlled displacement for search dogs performing special work, comprising a back strap, a belly strap with a quick release buckle, and a chest strap running between the chest bone and the throat area. The leash-holding element with controlled displacement has an elastic design, stretching along the axis line, in line with the spine of the dog to a given extent, reducing the load on the dog when led on a leash, primarily during special mantrailing—search work, when the dog is sniffing the ground with an outstretched neck. The leash-holding element with controlled displacement moves on the axis line as a function of the forces acting on the leash-holding end element. The leash-holding element follows the mechanism of movement characteristic of search work, and allows smooth working for the search dog led on a leash.