Dispenser for thin-walled containers, and thin-walled container with dispenser.

The dispensing device for thin-walled containers addresses buckling issues by using a suction pipe with an expanded diameter and holding mechanism, enabling easy detachment and refilling while reducing environmental impact.

JP7844167B2Active Publication Date: 2026-04-13YOSHINO KOGYOSHO CO LTD
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Patent Information

Application Number
JP2022002544
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-09-30
Filing Date
2022-01-11
Publication Date
2026-04-13
Estimated Expiration
2042-01-11

AI Technical Summary

Technical Problem

Existing thin-walled containers face issues with buckling when the suction pipe is radially expanded outward, making it difficult to detach from the container mouth during refilling, and there is a need for a dispensing device that reduces environmental burden and facilitates easy replacement and refilling.

Method used

A dispensing device with a pump unit having an upwardly biased stem, a nozzle head, and a suction pipe with an expanded diameter portion that radially outwardly contacts the container bottom, featuring a hinge portion and a holding portion to fit within the container mouth diameter, allowing easy detachment and refilling.

Benefits of technology

The device reduces environmental impact by using thin-walled containers and facilitates easy replacement and refilling by ensuring the suction pipe detaches smoothly from the container mouth, preventing buckling and reducing material usage.

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Abstract

To provide a discharge tool for a thin-wall container, facilitating replacing a discharge tool and re-filing a content while reducing a resin amount and reducing an environmental load by using a thin-wall container.SOLUTION: A discharge tool 100 for a thin-wall container is a discharge tool 100 for a thin-wall container, which includes: a pump part 30 that has a stem 37 energized upward, and pressure-feeds upward a content stored in a container body 10 as a thin-wall container due to the downward movement of the stem 37; and a nozzle head 40 that is fitted to an upper end portion of the stem 37, and operates the pump part 30 by depression to discharge the content from a nozzle 43. The pump part 30 has a suction pipe 35 suspended so as to contact a bottom 1 of the container body 10 and sucking a content. The suction pipe 35 has an enlarged diameter portion 35d enlarging a diameter to a radial direction outside due to contact of the lower end portion with the bottom 1 of the container body 10. The discharge tool 100 for a thin-wall container further includes a holding part for holding an external diameter of the enlarged diameter portion 35d to equal to or lower than an inner diameter of a mouth part 3 of the container body 10.SELECTED DRAWING: Figure 4A
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