JPS6360376U

JPS6360376U -

Info

Publication number: JPS6360376U
Application number: JP15350786U
Authority: JP
Priority date: 1986-10-06
Filing date: 1986-10-06
Publication date: 1988-04-21

Description

[Brief explanation of the drawing]

第１図及び第２図は本考案実施例に係り、第１
図は筆記具の要部縦断面図、第２図はインキ保溜
体の通気路側を上にして見た状態の前端部の斜視
図である。又、第３図は従来のインキ保溜体を備
えた筆記具の一部縦断面図である。１……従来のインキ保溜体、２……保溜溝、３
……インキ貯溜部、４……縦溝、５……通気路、
６……軸筒、７……インキ貯溜部、８……インキ
保溜体、９……先端テーパー部、１０……保溜溝
、１０ａ……最前部の保溜溝、１１……縦溝、１
２……通孔、１３……通気路、１４……空気孔、
１５……縦溝、１６……インキ誘導棒、１７……
ボールペンチツプ、１８……先軸、１９……通孔
。 Figures 1 and 2 relate to the embodiment of the present invention;
The figure is a longitudinal cross-sectional view of a main part of the writing instrument, and FIG. 2 is a perspective view of the front end of the ink reservoir with the air passage side facing upward. Further, FIG. 3 is a partial vertical sectional view of a writing instrument equipped with a conventional ink reservoir. 1... Conventional ink reservoir, 2... Retention groove, 3
...Ink reservoir, 4...Vertical groove, 5...Vent passage,
6... Shaft cylinder, 7... Ink reservoir, 8... Ink reservoir, 9... Tapered tip, 10... Reservoir groove, 10a... Frontmost reservoir groove, 11... Vertical groove ,1
2... Ventilation hole, 13... Air passage, 14... Air hole,
15... Vertical groove, 16... Ink guiding rod, 17...
Ballpoint pen tip, 18... tip, 19... through hole.

Claims

[Scope of utility model registration request]

A large number of circumferential retention grooves are arranged in parallel in the axial direction, and each retention groove is connected by a vertical groove, and an axial ventilation passage is formed in a part of the outer surface on the opposite side of the vertical groove. In the ink reservoir of a writing instrument that is interposed between the reservoir and the pen nib and has the function of storing excess ink from the ink reservoir in each reservoir groove, the circumferential direction of the ink reservoir groove at the forefront An ink reservoir for a writing instrument, characterized in that the width of the ink reservoir is set such that the ventilation path side is wider than the vertical groove side.