Ripeness Checker

The ripeness checker uses a movable pressing shaft and elastic mechanism to determine fruit ripeness by measuring relative displacement, addressing inaccuracies in existing methods and providing a cost-effective, sensor-free solution for home and commercial use.

JP7873366B1Active Publication Date: 2026-06-11泉 創太 +6

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
泉 創太
Filing Date
2026-03-04
Publication Date
2026-06-11

AI Technical Summary

Technical Problem

Existing methods for determining the ripeness of fruits and vegetables, such as avocados, kiwis, and persimmons, are inaccurate due to environmental factors and require complex, expensive sensor-based systems that are not suitable for home use.

Method used

A ripeness checker with a cylindrical portion, a movable pressing shaft, an elastic coil spring, and a slit-protrusion mechanism that measures relative displacement to determine hardness without sensors, allowing for easy and inexpensive ripeness determination.

🎯Benefits of technology

The device provides accurate ripeness assessment by measuring hardness changes through relative displacement, is simple to use, cost-effective, and suitable for home and commercial use without damaging the fruit.

✦ Generated by Eureka AI based on patent content.

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Abstract

Its simple and inexpensive design allows for easy operation and determination of the ripeness of fruits and vegetables. [Solution] The ready-to-eat checker 1 comprises a cylindrical portion 10, a pressing shaft portion 20 supported within the cylindrical portion 10 so as to be able to move relative to it in the axial direction, a coil spring 30 as an elastic part that biases the pressing shaft portion 20 in the axial direction within the cylindrical portion 10, and a slit portion 14 formed in the cylindrical portion 10 and extending in the axial direction, and a protruding portion 24 formed in the pressing shaft portion 20 and inserted into the slit portion 14, which serve as acquisition parts for acquiring the relative displacement between the pressing shaft portion 20 and the cylindrical portion 10.
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