Side-Pushed Makeup Pen Slider Mechanism for One-Handed Refill
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Solution Overview
Problem
Existing makeup pens require two-handed operation to replenish cosmetic liquid, making them inconvenient to use.
Innovation Solution
A side-pushed makeup pen design featuring a slider on the pen body's sidewall allows single-handed operation to refill the applicator assembly, utilizing a discharge assembly with one-way valves for sealed material flow and a replaceable container assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rotary portion is used to replenish cosmetic liquid in the applicator assembly, then the cosmetic liquid can be replenished, but two-handed operation is required which reduces ease of operation
Solution Approach 1:
The slider is moved from a traditional rotary (circular) motion to a linear sliding motion along the sidewall of the pen body. This dimensional change allows the user to operate the makeup pen with one hand by sliding the component along the length of the body, eliminating the need for two-handed operation while still achieving cosmetic liquid replenishment
2Adaptability or versatility
If the container assembly is detachably connected to allow replacement, then component reusability is improved, but device complexity increases
Solution Approach 1:
The makeup pen is divided into separable components: a reusable pen body containing the applicator assembly and a replaceable container assembly holding the cosmetic liquid reservoir. This segmentation allows users to replace only the container when needed, extending the life of the main device while providing flexibility and adaptability
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
Enables convenient one-handed material replenishment, ensures material quality and longevity through sealed valve operation, and allows for reusable components by facilitating easy container replacement.
Implementation Method 1
an elastic member sleeved on the discharge assembly... When the slider is released, the elastic member restores the discharge assembly to the initial position
Implementation Method 2
A first valve is arranged between the pen body and the applicator assembly. A second valve is arranged between the discharge assembly and the container assembly... each of the first valve and the second valve is a one-way valve
Data Source
AI summary
A side-pushed makeup pen includes an applicator assembly, a pen body, a slider, a discharge assembly, and a container assembly. The pen body includes a first end connected to the applicator assembly and a second end detachably connected to the container assembly. The discharge assembly is slidably provided in the pen body. The slider is slidably provided on a sidewall of the pen body, and the slider is connected to the discharge assembly. The slider is configured to drive the discharge assembly to slide in an axial direction of the pen body. An elastic member is sleeved on the discharge assembly. A first valve is arranged between the pen body and the applicator assembly, and a second valve is arranged between the discharge assembly and the container assembly. Replenishing material to the applicator assembly is operable with a single hand of the user.