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JP1835617SActive Publication Date: 2026-09-14株式会社開工精機製作所
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Patent Information

Application Number
JP2025021440D
Authority / Receiving Office
JP · JP
Patent Type
Designs
Current Assignee / Owner
Filing Date
2025-10-23
Publication Date
2026-09-14
Estimated Expiration
2050-10-23

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Abstract

This product relates to the cover bolt and adjustment screw at the end of the barrel end, which is attached to the barrel by screwing or the like, and the shape of the inside of the barrel end, as shown in the "Reference Diagram Showing the Names of Each Part," "AA End View," "AA End View with Widened Refill Protrusion," and "AA End View with Narrowed Refill Protrusion." It is a writing instrument in which the protrusion of the refill from the tip can be precisely adjusted by removing the cover bolt at the end of the barrel end and then turning the adjustment screw with a tool.
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