Rotating Diaper Pail with Transparent Barrel for Odor Containment
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Solution Overview
Problem
Existing diaper pails fail to effectively contain and mask the odor of dirty diapers due to inadequate sealing, requiring users to manually handle the disposal process, which can lead to unpleasant odors escaping and do not serve as visually stimulating objects for infant-toddler development.
Innovation Solution
A hands-free and touch-free diaper pail system with a top having pivoting doors that maintain a closed disposable bag formation, utilizing a foot pedal or sensor-activated mechanism to temporarily open for waste disposal while keeping odors contained, and featuring a visually stimulating design with a transparent outer barrel and animated inner barrel for child development.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional diaper pail with a simple top cover is used, then the device complexity is low, but odors escape into the surrounding environment when the top is opened
Solution Approach 1:
The pail is divided into separate functional components: an outer pail, an inner rotatable holder, a disposable bag, and a foot pedal mechanism. Each component performs a specific function - the outer pail provides structural support, the inner holder rotates to open/close the bag, the disposable bag contains waste, and the foot pedal activates the rotation. This segmentation allows complex odor containment functionality while maintaining simplicity in each individual component.
Solution Approach 2:
The patent employs a nested structure where the disposable bag is placed inside the inner holder, which rotates within the outer pail. The bag is adhered to the holder using double-sided adhesive tape, creating a nested arrangement where each element fits within another. This nesting allows the bag to be manipulated through holder rotation while remaining contained within the pail structure, enabling odor containment without requiring a complex sealed lid system.
2Ease of operation
If a foot pedal mechanism with rotating holder is used, then hands-free operation is achieved, but the bag opens when the holder rotates causing odors to escape
Solution Approach 1:
The disposable bag is pre-adhered to the inner holder using double-sided adhesive tape before use. This preliminary attachment ensures that when the holder rotates during operation, the bag moves with it and opens only when intended. The adhesive tape creates a preliminary bond that maintains the bag's position relative to the holder, allowing controlled opening during foot pedal activation while preventing unintended opening.
Solution Approach 2:
The system transitions from a static bag attachment to a dynamic one where the bag is adhered to a rotatable holder. When the foot pedal is pressed, the holder rotates dynamically, causing the bag to open and close in sync with the holder's movement. This dynamic attachment allows the bag to respond to operational needs - remaining closed during normal operation to contain odors, and opening only when the holder rotates during waste disposal.
3Ease of operation
If double-sided adhesive tape is used to attach the bag to the holder, then the bag rotates with the holder, but the tape may distort and stretch the plastic creating holes in the bag
Solution Approach 1:
The patent uses a flexible disposable bag made of thin plastic film that can conform to the holder's shape and movement. The bag's flexibility allows it to rotate with the holder without excessive stress, as the material can bend and deform elastically. This flexible shell approach maintains bag integrity during rotation while enabling the necessary movement for opening and closing the waste container.
Solution Approach 2:
The adhesive tape is applied in a way that distributes stress across multiple parameters - the adhesive strength, the bag material properties, and the rotation speed are all considered. By controlling these parameters, the system achieves reliable bag-to-holder attachment that allows rotation without exceeding the plastic's elastic limits. The adhesive force is calibrated to be sufficient for rotation but not so strong as to cause plastic deformation or hole formation during normal operation.
Data Source
AI summary
A diaper pail having a top chamber with top transparent doors, and a transparent outer casing, allowing a user to see the rotating inner barrel as it spins within the transparent outer casing. The inner barrel holds a disposable bag and as it rotates the inner barrel untwists a neck of bag, thus opens the bag for a dirty diaper to fall into the bag from the top chamber. The dirty diaper falls into the bag while the doors of the top chamber remain shut, keeping malodorous gas from escaping. The visual spectacles provided by this diaper pail also act to change infant and toddler behavior by associating diaper change to a fun and fascinating event.