Foaming Spout
The foam discharger employs a leaf spring to address sagging issues in coil spring-based systems, ensuring consistent foam discharge by maintaining biasing force and reducing deformation, thus improving reliability.
JP2026143114APending Publication Date: 2026-09-08YOSHINO KOGYOSHO CO LTD
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Patent Information
- Application Number
- JP2025030538
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-09-08
AI Technical Summary
Technical Problem
Conventional foam dischargers utilize coil springs which may lead to issues such as sagging and plastic deformation, affecting the consistency and reliability of foam discharge.
Method used
A foam discharger employing a leaf spring as the spring member, which elastically deforms radially outward to generate a restoring force, reducing sagging and maintaining consistent biasing force through a specific design that includes a mounting portion and sliding portion with controlled diameter reduction.
Benefits of technology
The use of a leaf spring ensures consistent foam discharge by minimizing sagging and maintaining biasing force, enhancing the reliability and performance of the foam dispenser.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention provides a foam dispenser that uses a spring member composed of a leaf spring. [Solution] A foam dispenser comprising a cylinder section 4, an air piston 5, a liquid piston 6, a lifting section 7, and a spring member 8, wherein the cylinder section 4 comprises an air cylinder section 4a and a liquid cylinder section 4b, the air cylinder section 4a and the air piston 5 partition an air chamber S1, the liquid cylinder section 4b and the liquid piston 6 partition a liquid chamber S2, the lifting section 7 moves up and down with the air piston 5 and the liquid piston 6 by pressing against the biasing force of the spring member 8 and releasing it, mixing liquid L and air to form foam and discharging it, the spring member 8 comprises a mounting section 8a and a leaf spring 8b, the mounting section 8a is mounted on one of the cylinder section 4 and the lifting section 7, the other of the cylinder section 4 and the lifting section 7 has a sliding section 7a, the leaf spring 8b is elastically deformed radially outward by sliding against the sliding section 7a as the lifting section 7 descends, and generates a biasing force as a restoring force from the elastic deformation.
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