JPH01146993U

JPH01146993U -

Info

Publication number: JPH01146993U
Application number: JP4344288U
Authority: JP
Priority date: 1988-03-31
Filing date: 1988-03-31
Publication date: 1989-10-11
Anticipated expiration: 2003-03-31
Also published as: JPH0712055Y2

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例を示す縦断面図、
第２図は第１図の―線横断面図、第３図は第
１図の―線横断面図、第４図は第２実施例を
示す要部縦断面図、第５図は第３実施例を示す要
部縦断面図、第６図は第５図の―線横断面図
、第７図は第５図の―線横断面図。１……軸筒、１ａ……軸筒後端、２……内孔、
２ａ……前部内孔、２ｂ……後部内孔、２ｃ……
段部、３……空間、３ａ……仕切壁、３ｂ……仕
切壁先端、３ｃ……孔部、４……先部材、４ａ…
…後端部、５……一時的インキ溜め部材、５ａ…
…スリツト、５ｂ……一時的インキ溜め部、５ｃ
……凹部、６……ペン先、７……インキ誘導芯体
、８……キヤツプ、８ａ……凸部、９……リング
状弾性体、１０……空気孔、１０ａ，１０ｂ，１
０ｃ……溝、１０ｄ，１０ｅ……周状凹部、１１
……外周空間、１２……リング状弾性体、１３…
…尾栓。 FIG. 1 is a longitudinal sectional view showing the first embodiment of the present invention;
Fig. 2 is a cross-sectional view taken along the line - - of Fig. 1, Fig. 3 is a cross-sectional view taken along - line of Fig. 1, Fig. 4 is a longitudinal sectional view of main parts showing the second embodiment, and Fig. 5 is a cross-sectional view taken along the - line of Fig. 1. FIG. 6 is a cross-sectional view taken along the line -- in FIG. 5, and FIG. 7 is a cross-sectional view taken along the line -- in FIG. 5. 1... Shaft cylinder, 1a... Shaft cylinder rear end, 2... Inner hole,
2a...front inner hole, 2b...rear inner hole, 2c...
Stepped portion, 3... Space, 3a... Partition wall, 3b... Partition wall tip, 3c... Hole, 4... End member, 4a...
...Rear end portion, 5...Temporary ink reservoir member, 5a...
...slit, 5b...temporary ink reservoir, 5c
... Concavity, 6 ... Pen tip, 7 ... Ink guide core, 8 ... Cap, 8a ... Convex part, 9 ... Ring-shaped elastic body, 10 ... Air hole, 10a, 10b, 1
0c...Groove, 10d, 10e...Circumferential recess, 11
...Outer peripheral space, 12...Ring-shaped elastic body, 13...
...tail plug.

Claims

[Scope of utility model registration request]

In a writing instrument in which a temporary ink reservoir member is interposed between the pen tip and the ink tank, and the inner hole of the barrel is directly used as the ink tank, the barrel is
It has a large-diameter front inner hole and a small-diameter rear inner hole, and the stepped part that is the connecting part between the large-diameter front inner hole and the small-diameter rear inner hole is used as a temporary ink reservoir member rearward displacement prevention wall. In addition, the rear inner hole is used as an ink tank, and a cap opening in the stepped portion and removably covering the barrel wall forming the rear inner hole is used to provide an ink tank to the outside. A writing instrument characterized by having a space communicating with an air hole that is blocked by the air hole.