JPH0246679U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

図は本考案の実施例を示したもので、第１図は
リフイール全体の縦断面図、第２図は尾栓の側面
図、第３図は尾栓の縦断面図、第４図は第１図Ａ
―Ａ線位置における尾栓の横断面図、第５図は尾
栓前面図である。 １……リフイール、２……ボールペンチツプ、
３……チユーブ、３ａ……小径部、３ｂ……中径
部、３ｃ……大径部、４……中駒、５……インク
吸蔵体、６……誘導芯、７……尾栓、８……内孔
、９……横溝、１０ａ，１０ｂ……凹溝、１１ａ
，１１ｂ……横孔、１２ａ，１２ｂ……縦溝、１
３ａ，１３ｂ……通気溝。 The figures show an embodiment of the present invention, in which Fig. 1 is a longitudinal cross-sectional view of the entire refill, Fig. 2 is a side view of the tail plug, Fig. 3 is a longitudinal cross-sectional view of the tail plug, and Fig. 4 is a vertical cross-sectional view of the tail plug. Figure 1A
-A cross-sectional view of the tail plug at the A-line position; FIG. 5 is a front view of the tail plug. 1... Refill, 2... Ballpoint pen tip,
3...tube, 3a...small diameter part, 3b...medium diameter part, 3c...large diameter part, 4...middle piece, 5...ink storage body, 6...guiding core, 7...tail plug, 8...Inner hole, 9...Horizontal groove, 10a, 10b...Concave groove, 11a
, 11b...horizontal hole, 12a, 12b...vertical groove, 1
3a, 13b... Ventilation groove.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] インク吸蔵体を内蔵し前端部に筆記部を構成し
たリフイールチユーブの後端に尾栓を嵌入し、当
該尾栓にはインク吸蔵体の後端面に対面する前面
に開口した大径の内孔を設けると共に、チユーブ
への嵌入部の略中央部の外面円周上に前記内孔と
連通する小径な横孔と、横孔が略スリバチ形の底
部に位置するようなスリバチ形凹溝を対向する２
箇所に設けて、これらスリバチ形凹溝の一地点よ
りチユーブの後端まで達する細くて長い縦溝を外
面円周上に夫々設けて、チユーブの後端で通気溝
を夫々形成すると共に、前記内孔、横孔、凹溝、
縦溝、通気溝と、チユーブの内部と外気とを連通
する空気流通路を構成したことを特徴とする水性
ボールペン等筆記具のリフイール。 A tail plug is fitted into the rear end of the refill tube that has an ink storage body built in and a writing section at the front end, and the tail plug has a large diameter inner hole that opens at the front facing the rear end surface of the ink storage body. At the same time, a small diameter horizontal hole that communicates with the inner hole is provided on the outer circumference of the approximately central part of the part that is inserted into the tube, and a slit-shaped groove is provided so that the horizontal hole is located at the bottom of the slit-shaped groove. do 2
Thin and long vertical grooves are provided on the circumference of the outer surface of the tube, reaching from one point of these slit grooves to the rear end of the tube, to form ventilation grooves at the rear end of the tube, and to hole, horizontal hole, groove,
A refill for a writing instrument such as a water-based ballpoint pen, characterized by comprising a vertical groove, a ventilation groove, and an air flow path that communicates the inside of the tube with outside air.