CN2344175Y

CN2344175Y - Neutral ball-pen point capable of improving ink fluidity

Info

Publication number: CN2344175Y
Application number: CN 97241919
Authority: CN
Inventors: 黄兴华; 陈勇
Original assignee: SHANGHAI PLATINUM WRITING APPLIANCES-MAKING Co Ltd
Current assignee: SHANGHAI PLATINUM WRITING APPLIANCES-MAKING Co Ltd
Priority date: 1997-10-16
Filing date: 1997-10-16
Publication date: 1999-10-20
Anticipated expiration: 2007-10-16

Abstract

The utility model relates to a neutral ball-pen point capable of improving ink fluidity, comprising a ball bead and a bead seat. The inner part of the bead seat is provided with a groove; the groove diameter of the groove in the bead seat is from phi 0.485 to phi 0.53 mm, and the bead diameter is phi 0.5 mm; the bead diameter is phi 0.6 mm, and the groove diameter is from phi 0.585 to phi 0.63 mm; the bead diameter is phi 0.7 mm, and the groove diameter is from phi 0.685 to phi 0.73 mm; the width of the groove is from 0.08 to 0.14 mm. Because of the changes of the inner groove diameter of the groove and the dimension of the width of the groove, the ink discharging quantity of the higher viscosity ink can be ensured. When the pen point is used for writing after a little, the ball bead and the bead seat are provided with a certain amount of abrasion. Because of the increases of the inner groove diameter of the groove and the dimension of the width, the groove can not be covered by the abrasion part, so the ink discharging quantity can not be affected by the abrasion. Thereby, the service life of the pen point is extended.

Description

Improve the neutral ball pen nib that the China ink amount

The utility model is the improvement about neutral ball pen nib, particularly improves the improvement of the ball pen nib that the China ink amount and do at the neutral refill for ball-point pen that uses viscosity higher printing ink.

Existing neutral ball pen generally all adopts low viscosity ink to improve the China ink amount, so just make the anti-reverse fluidity of neutral ball pen, the lubricity of resistance to water also decreases, also derive simultaneously many negative effects, as forget to cover the cap for brush and make ink volatile, or pen is in the long slightly China ink group that just can produce of the paper time of staying when writing, and also can make after ink viscosity reduces to write that number of words reduces and service life of having reduced pen core.In order to address this problem, use high viscosity inks to become the development trend of neutral ball pen, but because the method for ink that goes out of neutral ball pen is a method of utilizing gravity principle and the combination of capillary principle, therefore the inner structure of nib is the basic assurance that the China ink amount, the ditch of pearl seat internal groove footpath is generally φ 0.45 ~ φ 0.48mm with φ 0.5mm nib in the written structure of existing gel ink pen, φ 0.6mm nib is φ 0.55 ~ φ 0.58mm, φ 0.7mm nib is φ 0.65 ~ 0.68mm, groove width is 0.06mm ~ 0.08mm, this has become a kind of basic standard of neutral ball pen nib interior channel dimension for many years, but along with the development trend that adopts high viscosity inks, this nib more and more can not be suitable for, but can't solve.We find that too small pearl seat internal groove is to cause neutral ball pen to adopt the obstacle of high viscosity inks development trend, make neutral ball pen not reach the best and go out the China ink amount, particularly cause wearing and tearing after writing, and groove is covered by ball uses the China ink amount and also be affected.

The shortcoming that the purpose of this utility model just is to overcome above-mentioned prior art can be improved the nib of the neutral ball pen that the China ink amount for the development trend design that is fit to neutral ball pen and adopts high viscosity inks.

Formation of the present utility model comprises ball and pearl seat, the inside of pearl seat has groove, the ditch of pearl seat internal groove directly is with pearl footpath φ 0.5mm, ditch directly is φ 0.485 ~ φ 0.53mm, with pearl footpath φ 0.6mm, ditch directly is φ 0.585 ~ φ 0.63mm, with pearl footpath φ 0.7mm, ditch directly is φ 0.685 ~ φ 0.73mm, and the width of groove is 0.08 ~ 0.14mm.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a structure pearl seat cross-sectional view of the present utility model.

Further specify embodiment of the present utility model below in conjunction with accompanying drawing, with pearl directly is that φ 0.5mm nib is an example, have groove 2 in the inside of pearl seat 1, the septal fossula footpath b of groove is φ 0.485 ~ φ 0.53mm, the width a of groove is 0.08 ~ 0.14mm, at the top of pearl seat 1 setting-in one 0.5mm ball 3, form nib.

Because the change of groove septal fossula footpath and groove width size, be more suitable for going out the assurance of China ink amount in viscosity higher printing ink, and when nib after writing after a while, ball and pearl seat all can have a certain amount of wearing and tearing, because increasing, groove septal fossula footpath and width dimensions make the part of wearing and tearing can not cover groove, even thereby wearing and tearing do not influence China ink amount yet, thereby have prolonged written service life.

Claims

1. one kind is improved the neutral ball pen nib that the China ink amount, comprise ball and pearl seat, the inside of pearl seat has groove, the ditch footpath that it is characterized in that pearl seat internal groove is with pearl footpath φ 0.5mm, and ditch directly is φ 0.485 ~ φ 0.53mm, with pearl footpath φ 0.6mm, ditch directly is φ 0.585 ~ φ 0.63mm, with pearl footpath φ 0.7mm, ditch directly is φ 0.685 ~ φ 0.73mm, and the width of groove is 0.08 ~ 0.14mm.