Pet Leash Lead Fastening for Constant-Length Detangling
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Solution Overview
Problem
Traditional pet leashes often become entangled with obstacles, leading to unpredictable length changes and potential disturbances or escapes of the pet, as well as awkward positions for the user during untangling.
Innovation Solution
A pet leash apparatus featuring a flexible lead with detachable and attachable fasteners that can transition between looped and fastened configurations, and an optional rigid elongate member that positions between extended and tensioned states, allowing controlled detangling without length changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lead is retracted or regripped to untangle from obstacles, then the lead can be extricated from entanglement, but the length of the lead between the user and pet changes, causing disturbance, escape risk, or user discomfort
Solution Approach 1:
The lead attachment device incorporates a dynamic mechanism that allows the lead to transition between fixed and mobile states. When entanglement occurs, the lead can be pulled through the attachment device, dynamically changing its configuration from a fixed length to a looped path that maintains consistent effective length between user and pet.
Solution Approach 2:
The lead attachment device segments the lead into distinct portions: a fixed portion attached to the device and a mobile portion that can pass through. This segmentation allows the mobile portion to be pulled through during entanglement while the fixed portion maintains the effective lead length, preventing unwanted changes in distance between user and pet.
2Ease of operation
If the lead forms a continuous loop configuration, then the lead can be easily repositioned and detangled by tensioning, but the lead may become entangled with obstacles
Solution Approach 1:
The lead attachment device enables dynamic configuration changes. In normal operation, the lead forms a continuous loop that can be easily repositioned by tensioning. When entanglement with obstacles occurs, the lead can be pulled through the attachment device, dynamically transitioning from a looped configuration that risks entanglement to a more controlled configuration that maintains ease of repositioning while reducing entanglement risk.
Data Source
AI summary
A pet leash apparatus that includes a lead formed of a flexible material and a lead attachment to receive the lead with the lead attachment being in mechanical cooperation with a pet collar configured for attachment to a pet. A plurality of fasteners is disposed along the lead that attachably and detachably cooperate with one another to configure the lead between: (i) a looped configuration in which all the fasteners are detached from one another and the lead forms a continuous loop that cooperates with the lead attachment to reposition a gripped portion of the lead proximate a distal end to the proximal end by tensioning of the lead at the gripped portion; and (ii) a fastened configuration in which at least some fasteners are attached to restrict movement of the lead through the lead attachment. The pet leash apparatus may include an elongate member of rigid construction positionable between an extended position by slacking of the lead and a tensioned position by tensioning of the lead.