JPS6413385U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of the tip of the writing instrument of the present invention, Fig. 2 is a sectional view taken along line AA in Fig. 1, Fig. 3 is a sectional view taken along line B-B, and Fig. 4 is a sectional view of another example. Main part longitudinal sectional view, No. 5
The figure is a cross-sectional view taken along the line C-C in Figure 4, Figure 6 is a longitudinal cross-sectional view of the main part of a conventional writing tip, and Figure 7 is D in Figure 6.
- It is a sectional view taken along the D line. 1... Tip of the writing instrument, 5... Ink storage part, 2...
Barrel, 6... Pen core, 3... Holder member, 61... Annular comb groove, 31... Front center hole, 62... Through hole, 32
...Rear center hole, 63...Slit, 4...Pen body, 6
4...Capillary ink storage gap.

Claims (1)

[Scope of utility model registration request] A pen body is attached to the tip of the barrel via a holder member, and between the rear part of the holder member and the ink storage section, a large number of annular comb grooves are arranged in parallel on the outer peripheral surface. The writing instrument is of a type in which a pen core is disposed with a slit that extends vertically through the comb groove and communicates with a through hole in the shaft center, and the rear part of the pen body is inserted into the through hole and ink is drawn out to the writing tip. , the pen body is of a type that has a capillary gap in the axial direction at least on the outer surface, and the holder member has a rear hole diameter of the center hole that is slightly larger than the outer diameter of the pen body, and when the pen body is inserted. , a tip of a writing instrument having a cylindrical capillary ink storage gap formed between the rear outer peripheral surface of the pen body and the inner surface of the rear center hole.