Compact Container Short Stroke Pump Ring Button
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Solution Overview
Problem
Conventional cosmetic containers with airless pumps have a large pump structure that occupies space, limiting the volume for cosmetic content and requiring precise center pressing for operation, leading to inconvenience and wastage of cosmetics.
Innovation Solution
A compact container design with a short stroke pump mounted on a plate-shaped pump support, featuring a piston, piston ring, and suction valve plate, with a bushing and ring button member allowing flexible movement and content discharge from any part of the discharge plate, maximizing content space and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If the pump is installed in the inner center of the container body as in conventional airless pumps, then the pump structure is stable and reliable, but the pump occupies a large portion of the container body, reducing the content accommodation space
Solution Approach 1:
The pump is relocated from a vertical installation in the center of the container body to a horizontal installation on the pump support plate at the top of the container body. This dimensional change allows the pump to be positioned outside the content accommodation space, maximizing the volume available for cosmetic contents while maintaining pump functionality.
2Volume of stationary object
If the pump stroke is reduced to shorten the pump structure, then the content accommodation space is maximized, but the discharge amount per pump operation is reduced
Solution Approach 1:
The pump system incorporates a multi-stroke operation mechanism where the button can be pressed multiple times to accumulate discharge volume. Additionally, the pump support plate and distribution plate work together to optimize the short stroke efficiency, allowing the reduced stroke distance to be compensated through operational dynamics rather than structural complexity.
3Volume of stationary object
If the pump is designed with a short stroke of 1.5-3.0 mm, then the pump structure is compact and content space is increased, but the pump becomes sensitive to pressing position requiring precise center pressing
Solution Approach 1:
The distribution plate serves as an intermediary between the button press and the pump mechanism. It distributes the pressing force from the button across the pump components, reducing sensitivity to precise pressing position. This mediator allows users to operate the pump conveniently without requiring exact center alignment while maintaining effective cosmetic discharge.
4Volume of stationary object
If the pump stroke is shortened to 1.5-3.0 mm with ratio 1:5 to 1:13, then the content accommodation space is maximized, but the pump structure becomes more sensitive to misalignment and operational errors
Solution Approach 1:
The pump design optimizes the stroke-to-cylinder-diameter ratio to 1:5 to 1:13, which is significantly different from conventional ratios. This parameter change creates a more tolerant operational system where the short stroke is compensated by the larger cylinder diameter, reducing sensitivity to misalignment and improving reliability despite the reduced stroke distance.
Data Source
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AI summary
The present invention relates to a compact container having a short stroke pump and a ring button member and, more particularly, to a compact container having a short stroke pump and a ring button member, in which a pump support is formed in a plate shape on top of a container body and the pump is mounted on the pump support, wherein the pump is formed of a piston, a piston ring, a cylinder, and a suction valve plate as used in the conventional art; the stroke of the pump is reduced to 1.5-2.5 mm while the ratio of the stroke of the pump to the inner diameter of the cylinder is changed from 1:1-1:3 as in the conventional art to 1:5.5-1:13, thereby maximizing a content accommodating space in the main body of the container; a bushing is coupled to the upper portion of the cylinder of the pump, the end portion of the bushing being formed in a round shape, and a clearance of 0.3-1.2 mm is formed between the bushing and a vertical moving member so that the vertical moving member can flexibly move in the bushing; and the stroke of the pump is shortened in such a manner whereby a cosmetics pumping method is not restricted to pressing the center of a discharge plate, but allows a cosmetic material to be easily discharged even when any part of the discharge plate is pressed.