sharpener

EP4681875A1Pending Publication Date: 2026-01-21JINHUA YUYIN TRADING CO LTD
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Patent Information

Application Number
EP2025181299
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-12-16
Filing Date
2025-06-06
Publication Date
2026-01-21

AI Technical Summary

Technical Problem

Conventional sharpeners have limited adjustable ranges and cumbersome adjustment mechanisms, making it difficult to adapt to different cutter shapes and sharpening requirements, and often fail to maintain a fixed angle during the sharpening process.

Method used

A sharpener with a cutter holder mechanism, a sharpening stick mechanism, and an attitude adjusting mechanism that includes a vertical rail, sliding body, and rotating body, allowing for multi-dimensional adjustments of the sharpening stick and cutter angle, including stepless and preset angle adjustments, to accommodate various cutter shapes and sharpening needs.

Benefits of technology

Enables quick and smooth adjustment of the sharpening angle and position, ensuring consistent sharpening quality regardless of grindstone thickness or cutter shape, with a simple and convenient operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The disclosure provides a sharpener, which includes a cutter holder mechanism, a sharpening stick mechanism and an attitude adjusting mechanism. The cutter holder mechanism includes a cutter holder assembly for holding a cutter and an angle adjusting assembly configured to adjust a rotation angle of the cutter on a first plane. The attitude adjusting mechanism includes a vertical rail, a sliding body and a rotating body. The sliding body is slidably installed on the vertical rail to enable the sharpening stick mechanism to be movably arranged in a first direction, the rotating body is connected with the vertical rail to enable the sharpening stick mechanism to be rotatable in a direction parallel to a second plane, an installation part for connecting the sharpening stick mechanism is provided on the sliding body, and the grindstone is movably arranged in a second direction relative to the installation part.
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Citation Information

Patent Citations

  • Knife sharpener

    CN203527164U

  • Constant-angle knife sharpener

    CN217513505U

  • Sharpener with precise adjustment capabilities

    US20220088748A1

  • Blade sharpener

    US5431068A