Movable Rake Litter Box with Dynamic Traversal Paths
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Solution Overview
Problem
Existing self-cleaning litter boxes face issues with waste clumping on the rake, uneven litter distribution, and difficulty in removing and cleaning the rake, leading to reduced convenience and increased maintenance for pet owners.
Innovation Solution
A self-cleaning litter box with a movable rake that can control its forward and reverse positions and rotation, using different paths for traversal, and a mechanism to flip the rake for clump removal, reducing force on mechanical components and ensuring even litter distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a fixed position rake is used to automatically scoop pet waste, then the litter box can be cleaned automatically, but waste clumps to the rake and the rake becomes difficult to clean and maintain
Solution Approach 1:
The patent applies the dynamics principle by making the rake movable rather than fixed. The rake can be repositioned along the lateral sides of the litter box and adjusted to different angles, allowing it to adapt to varying waste locations and litter depths. This dynamic positioning prevents waste from consistently accumulating at the same spot on the rake, thereby reducing clumping and making the rake easier to clean and maintain while preserving automatic cleaning functionality
2Device complexity
If a fixed position rake is used to scoop waste, then the cleaning mechanism is simple, but the litter distribution becomes uneven with litter pushed to one side
Solution Approach 1:
The patent applies the asymmetry principle by allowing the rake to be positioned asymmetrically at different lateral locations and angles within the litter box. Rather than following a fixed symmetric path, the rake can be adjusted to asymmetric positions that adapt to the specific waste location and litter distribution pattern, ensuring more uniform litter redistribution while maintaining a relatively simple cleaning mechanism
3Device complexity
If the rake traverses through the litter box along a single fixed path, then the mechanical components experience less complexity, but the force on the rake and components increases due to resistance from compacted litter
Solution Approach 1:
The patent applies the dynamics principle by enabling the rake to dynamically adjust its position and angle during traversal. The rake can be repositioned along lateral sides and tilted at different angles to navigate through less compacted litter regions, reducing mechanical resistance and the force required to move the rake through the litter box, while adding only minimal complexity to the mechanical components
Data Source
AI summary
The disclosed system, methods, and apparatus relates to a self-cleaning litter box. The self-cleaning litter box includes a movable rake. A mechanism controlling the rake can allow for control of the forward/reverse position, the vertical position, and the rotation of the rake using a different path of travel for the forward and reverse traversals of the rake across the litter box. The controlled positioning of the rake can reduce force on the rake and other mechanical components, and more evenly distribute litter. Further, some implementations may include a dumping mechanism that involve the rake flipping so that clumps of pet waste are forcibly removed from the rake by a mechanical impact. Further implementations allow for removal/replacement of the rake.