Kugelschreiber

Details

Veröffentlichungs-Nr.

EP4772359

Anmeldetag

27. August 2024

Veröffentlichung

6. März 2025

Rechtsraum

EP

IPC

B43K24/08

Abstract

A ballpoint pen includes a knock spring interposed between a shaft tube and a refill, a rotor having a cam formed on a rear end surface of the rotor and a pressing rod protruding toward a rear side, a knock button configured for the pressing rod to be inserted into an internal space thereof, an inner peripheral cam formed on an inner surface near a rear end of the shaft tube, a plurality of engagement cams formed on the rear end surface of the rotor and engaged with the inner peripheral cam, and an inclined surface that is a front end surface of the rotor and is inclined rearwards, in which the ballpoint pen is formed such that, in a state in which the rotor is pressed by the knock button and the engagement cams are engaged with the inner peripheral cam, the refill is biased rearwards by the knock spring, the inclined surface is pressed rearwards by the rear end of the refill such that the rotor is inclined toward a position of the inclined surface, the position being closest to a rear side with respect to an axial center, and the pressing rod presses an inner peripheral surface of the knock button so as to fix the knock button to the shaft tube.

Anmelder

Firma

MITSUBISHI PENCIL COMPANY, LIMITED

Land

🇯🇵 Japan

Fachgebiete