Writing implement
AssigneeThe Pilot Ink Co., Ltd.
InventorShigeru Oike
Life of this patent
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Abstract
The writing implement 1 comprises a shaft barrel 4 and a tail plug 2. The shaft barrel 4 includes an ink storing body 7 stored in an interior portion thereof and a pen point 8 mounted on a front end portion thereof. The tail plug 2 is removably mounted on an opening formed at the rear end of the shaft barrel 4. The tail plug 2 includes a flange portion 21 which is provided backwardly of the rear end portion of the shaft barrel 4. Between the front surface of the flange portion 21 and the rear end portion of the shaft barrel 4, there is formed a groove 5 for forcibly opening. The groove 5 is formed more deeply inwardly in the diameter direction of the shaft barrel 4 than the inner surface of the rear end opening of the shaft barrel 4.
Claims17
A writing implement comprising:
- a shaft barrel storing ink in an interior portion thereof and having an opening at one end portion thereof;
- and
- a plug body removably mounted on the opening of said shaft barrel, said plug body comprising:
- a flange portion provided outwardly in an axial direction of said shaft barrel from the one end portion of said shaft barrel,
- wherein a forcibly opening groove is formed between one surface of the flange portion and the one end portion of said shaft barrel, said forcibly opening groove being formed more deeply inwardly in a diameter direction of said shaft barrel than an inner surface of the one end portion of said shaft barrel.
Dependencies are inferred from the claim text.