Sealed Damp Roll Dispenser With Rotating Cylinder Feed
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Solution Overview
Problem
Existing sheet dispensers are inadequate for handling and maintaining the dampness of damp cloth rolls, as they lack effective sealing mechanisms to prevent drying out.
Innovation Solution
A damp sheets dispenser with a compartmentalized design featuring an openable cover, a slit for dispensing, and two rotatable cylinders that seal the compartment to maintain dampness, allowing for controlled dispensing of damp sheets without tearing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a traditional open dispenser design is used, then easy access and simple structure are achieved, but the damp cloth dries out quickly
Solution Approach 1:
The dispenser is divided into a sealed compartment for storing damp cloth and a dispensing mechanism. The compartment can be opened for loading but seals when closed, separating the storage function from the dispensing function to maintain humidity while enabling access.
Solution Approach 2:
A flexible sealing membrane or cover is used to seal the compartment. This flexible element can be opened for loading and then seals tightly to prevent drying, adapting between open and closed states as needed.
2Device complexity
If manual pulling is used to dispense sheets, then no additional mechanism is needed, but sheets may tear
Solution Approach 1:
A cylindrical intermediary element is introduced between the damp cloth roll and the user. This cylinder rotates to feed sheets through a slit, acting as a mediator that prevents direct pulling while ensuring smooth, controlled dispensing without tearing.
Solution Approach 2:
The rotating cylinder mechanism automatically feeds sheets through the slit as it rotates, making the dispensing process self-service. The system performs the dispensing action itself rather than requiring manual pulling, improving sheet integrity.
3Ease of operation
If the compartment is opened frequently for dispensing, then easy access is achieved, but dampness is lost
Solution Approach 1:
The dispenser separates the loading function (requiring opening) from the dispensing function (through sealed slit). Once loaded, the compartment remains closed during dispensing operations, minimizing exposure to air and preventing dampness loss.
Solution Approach 2:
A flexible sealing cover or membrane seals the compartment during dispensing. This seal maintains the humid environment while allowing the dispensing mechanism to operate through a slit in the sealed compartment.
Data Source
AI summary
A damp sheets dispenser, including a compartment, for housing therein a damp roll, the compartment including: an openable cover, for inserting the damp roll into the compartment therethrough, and for closing the compartment, for dispensing the damp roll therefrom; a slit, for dispensing from damp roll therethrough at the closed state of the compartment; two rotatable cylinders disposed filling the slit, at the closed state of the compartment, for dispensing the damp roll therethrough; at least one sealing, for sealing the openable cover to surfaces of the compartment disposed adjacent thereto, thereby at the closed state, the compartment seals the damp roll housed therewithin, thereby maintaining the damp roll damped.