Rotatable Liquid Dispensing Head with Massage Rollers
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Solution Overview
Problem
Conventional liquid dispensers for personal care products often oversupply liquid and risk contamination due to direct contact between the liquid and the roller, and require manual application on the skin.
Innovation Solution
A liquid dispensing container assembly with a rotatable dispensing head and massage rollers, where the dispensing head can be positioned to align or misalign openings for controlled fluid communication, preventing contamination and allowing for precise application of liquid onto the skin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the liquid dispenser uses a roller to discharge and apply liquid directly from the container, then the liquid application is simplified, but the liquid continues to flow around the roller causing oversupply and potential contamination
Solution Approach 1:
The invention separates the liquid dispensing function from the liquid application function. The dispensing head dispenses controlled amounts of liquid through a dispensing opening, while the roller applicator applies the liquid to the skin. This segmentation prevents the liquid from flowing uncontrollably around the roller while maintaining simple application.
Solution Approach 2:
The dispensing head acts as an intermediary between the container and the roller applicator. It controls the liquid flow through a dispensing opening positioned to allow liquid to reach the roller, while preventing excess liquid from bypassing the roller. This intermediary structure solves the oversupply problem while maintaining direct application.
2Ease of operation
If the liquid directly contacts the roller as it is dispensed from the container, then the application process is simplified, but contaminants outside the container may contaminate the liquid substance
Solution Approach 1:
The dispensing head serves as a protective intermediary that controls the liquid's path from the container to the roller. The liquid flows through a controlled dispensing opening and is directed to the roller, preventing contact with external contaminants while maintaining the simplicity of the application process.
Solution Approach 2:
The dispensing head structure creates a controlled environment for liquid transfer, effectively shielding the liquid pathway from external contamination sources while allowing the liquid to reach the roller applicator through a defined opening.
3Quantity of substance
If conventional dispensers use a valve for liquid dispensing, then the liquid flow can be controlled, but the substance must be spread on the skin by hand
Solution Approach 1:
The invention merges the dispensing function and the application function into a single integrated unit. The dispensing head dispenses liquid while the roller applicator, attached to the same head, simultaneously applies the liquid to the skin. This combination eliminates the need for separate manual spreading while maintaining controlled liquid flow.
Solution Approach 2:
The dispensing head assembly performs multiple functions: it controls liquid flow through the dispensing opening and simultaneously provides a roller applicator for immediate application. This multi-functional design replaces the need for separate dispensing and application steps, improving ease of operation while maintaining flow control.
4Productivity
If the liquid dispensing head is always open for dispensing, then the liquid can be dispensed continuously, but the user cannot control when to stop the flow
Solution Approach 1:
The dispensing head is designed to be rotatable relative to the container, allowing the user to dynamically control the dispensing state. By rotating the dispensing head to different angular positions, the user can align or misalign the dispensing opening with the liquid source, thereby controlling when liquid flows and when it stops.
Solution Approach 2:
The rotatable dispensing head enables periodic dispensing action. The user rotates the head into position to dispense liquid, then rotates it out of position to stop dispensing. This periodic on/off control mechanism gives the user precise control over liquid flow timing while maintaining the ability to dispense continuously when needed.
Data Source
AI summary
A liquid dispensing container assembly includes a container having a container interior configured to contain a supply of liquid to be dispensed. A rotatable, liquid dispensing head is carried by the container and has a dispensing surface and a dispensing port. An opening in the liquid dispensing head may communicate with the dispensing port. The liquid dispensing head includes one or more rollers disposed in one or more respective sockets. A dispensing adaptor may be disposed in the liquid dispensing head. The liquid dispensing head may be rotatable between a dispensing position wherein the opening in the liquid dispensing head aligns or registers with an opening in the dispensing adaptor to facilitate flow of the liquid from the container onto the dispensing surface of the liquid dispensing head and a closed position wherein the opening misaligns or misregisters with the opening in the dispensing adaptor.