Leash Handle Assembly with Bidirectional Tether Locking
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Solution Overview
Problem
Standard and retractable leashes fail to provide adequate control for pets of varying temperaments and sizes, leading to accidents, discomfort, and user fatigue due to fixed lengths, tangling, and difficulty in attaching to objects.
Innovation Solution
A handle assembly for a leash system with a tether that includes an outer and inner housing, where the inner housing can move between unlocked and locked positions, allowing for adjustable control and attachment options through a spherical or cylindrical design with a tether receiver and engager.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed length leash is used, then the structure is simple, but the leash becomes loose and provides insufficient control
Solution Approach 1:
The patent implements a telescopic mechanism that allows the leash to dynamically adjust its length between extended and retracted positions. This dynamic structure enables the leash to provide sufficient control when extended while maintaining a compact form when retracted, resolving the contradiction between control effectiveness and structural simplicity.
2Ease of operation
If a retractable leash is used, then variable lengths are provided, but control over larger or stronger pets is limited
Solution Approach 1:
The leash is divided into multiple segments including a telescopic mechanism with inner and outer tubes, a locking mechanism, and a handle assembly. This segmentation allows each component to specialize in specific functions: the telescopic mechanism provides length adjustment, the locking mechanism ensures secure positioning, and the handle assembly provides ergonomic control, collectively enabling effective control of stronger pets.
3Adaptability or versatility
If a fixed loop handle is used, then the structure is simple, but it is difficult to attach to objects of varying shapes and sizes
Solution Approach 1:
The handle assembly is designed as a multi-functional component that can serve multiple purposes: it provides a gripping handle for the user, a attachment point for the leash, and a secure connection mechanism for various objects. The combination of these functions in a single integrated assembly enables versatile attachment to objects of varying shapes and sizes while maintaining structural efficiency.
4Reliability
If the leash is attached to fixed objects using a knot, then the attachment is secure, but the leash breakdown is accelerated and reattachment is difficult
Solution Approach 1:
The locking mechanism is designed to automatically secure the leash in the extended position through self-latching action, eliminating the need for manual knot-tying. This self-service mechanism provides secure attachment while allowing easy release and reattachment by simply operating the lock, thereby improving both attachment security and ease of reattachment without requiring complex manual operations.
Data Source
AI summary
A handle assembly for a leash system includes an outer housing that defines a handle interior and an inner housing that is positioned within the handle interior. The leash system includes a tether. The outer housing can be substantially spherical. The inner housing selectively moves between unlocked and locked positions. When in the locked position, the inner housing inhibits movement of the tether relative to the handle assembly in a first direction but not in a second direction that is substantially opposite the first direction. The inner housing can be biased towards one of the unlocked and the locked position. The inner housing includes a tether engager that selectively engages the tether. The handle assembly includes an inner housing mover that is connected to the inner housing so that the inner housing mover moves the inner housing between the unlocked and the locked position.