Aerosol Dispenser Sliding Guide for Uniform Flow
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Solution Overview
Problem
Conventional dispensers for aerosol containers often result in nonuniform flow volumes from paired stems, leading to uneven content distribution and insufficient flow when contents are of different types, or uneven usage when stems are not depressed sufficiently.
Innovation Solution
A dispenser with a sliding mechanism and vibration generation portion that ensures the nozzle is depressed to a predetermined position, reducing nonuniformity by guiding the sliding portions to terminate at a convex corner, providing feedback through vibration to the user, thus ensuring consistent flow from both stems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional dispenser allows free depression of the operating portion, then the user can operate the dispenser easily, but the flow volumes from paired stems become nonuniform and contents are not evenly distributed
Solution Approach 1:
The slid portion and sliding portion are designed to guide the nozzle to a predetermined depression position before full depression is achieved. This preliminary guiding action ensures that both stems are compressed uniformly to the same degree before the user completes the depression, preventing nonuniform flow volumes while maintaining ease of operation.
Solution Approach 2:
The vibration generation portion creates tactile feedback when the sliding portion reaches the termination of the slid portion, indicating that the nozzle has reached the predetermined depression position. This feedback mechanism helps users understand when uniform compression has been achieved, ensuring consistent flow volumes from both stems.
2Force
If the nozzle is not depressed to a sufficient position, then the user can operate the dispenser with less force, but contents flow out of only one stem or flow volumes become significantly nonuniform
Solution Approach 1:
The guiding mechanism between the slid portion and sliding portion ensures that the nozzle reaches a predetermined depression position that guarantees sufficient compression of both stems before the user applies full force. This preliminary positioning action ensures reliable content distribution from both stems while allowing the user to operate with controlled force.
Solution Approach 2:
The vibration generation portion provides tactile feedback that indicates when the nozzle has reached the sufficient depression position. This feedback ensures that users know when both stems are being compressed adequately, preventing the scenario where contents flow from only one stem while allowing operation with appropriate force.
3Device complexity
If the dispenser lacks a guiding mechanism, then the structure remains simple, but the depression position of the nozzle cannot be controlled and flow volumes become nonuniform
Solution Approach 1:
The slid portion and sliding portion form a guiding mechanism that preliminarily positions the nozzle at a predetermined depression position during the depression operation. This simple guiding structure ensures consistent depression position control without requiring complex mechanisms, maintaining relatively simple device complexity while achieving the desired precision.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The dispenser effectively reduces nonuniformity in flow volumes from paired stems, ensuring consistent content distribution and preventing issues like one stem being depleted before the other, by providing tactile feedback on sufficient depression.
Implementation Method 1
a vibration generation portion that generates vibration as a result of entry of the sliding portion is provided at the termination of the slid portion
Data Source
Figure 1
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AI summary
A dispenser (1) for aerosol containers includes: a nozzle (7); and a cover (24) including an operating portion (24c). One of the operating portion (24c) and the nozzle (7) includes a sliding portion (38) capable of depressing the nozzle (7) to a predetermined depression position together with a plurality of stems (5) while sliding on a slid portion (36) provided at an other one of the operating portion (24c) and the nozzle (7) to a termination (36a), with a depression operation on the operating portion (24c). A vibration generation portion (37) that generates vibration as a result of entry of the sliding portion (38) is provided at the termination (36a) of the slid portion (36).