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Elastic full-needle-tube ball pen head

A ballpoint pen head, elastic technology, applied in the direction of ballpoint pen, nib, printing, etc., can solve the problem of squeezing between the ball and the ball seat, and achieve the effect of smooth rotation and ink flow, reliable performance and accurate positioning

Inactive Publication Date: 2016-07-13
冯文达
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to simplify the structure of the ballpoint pen head with a full needle tube, adopt a specially made extremely shortened top wire stable anti-bias structure on the spring in the smooth tube hole of the nib, improve the centering accuracy of the front end of the spring top wire, and prevent the front end of the top wire from squeezing the ball Between the bead and the ball seat, it is especially suitable for ordinary needle tube gel pens

Method used

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  • Elastic full-needle-tube ball pen head

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Embodiment Construction

[0008] refer to figure 1 As shown, the spring 4 in the tube hole 6 of the nib 5 is compressed and locked by the locking part, and the front end of the top wire 2 of the spring 4 is pressed against the ball 1. The wire 2 pushes against the ball 1 to close the nib to prevent ink from leaking; when writing, the force acting on the pen pushes the ball 1 to open the nib, and the ink flows out normally.

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PUM

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Abstract

The invention discloses an elastic full-needle-tube ball pen head in the field of stationery. The elastic full-needle-tube ball pen head comprises a ball bead and a pen tip and is characterized in that the spring end, close to a protruding seat, in a smooth tube hole is provided with an ultra-short top thread. It is guaranteed that the front end of the spring top thread is aligned with the ball bead, and the elastic full-needle-tube ball pen head is particularly suitable for a common needle-tube type gel pen.

Description

technical field [0001] The invention relates to an elastic full-needle ballpoint pen head in the field of stationery. Background technique [0002] Chinese CN1243646C, CN1244458C disclosed needle tube type ball point pen head, complex spring structure is set in the plastic connector, utilizes the long straight steel wire front end on the helical spring to withstand ball, prevents ink from leaking or backflow. There is a large gap between the protruding seats of the full-needle ballpoint pen tip, the spring top wire is long and easy to bend, and the concentricity between the straight steel wire and the ball cannot be ensured, which affects the smooth rotation of the ball and the generation of unilateral stitches when writing. Contents of the invention [0003] The technical problem to be solved by the present invention is to simplify the structure of the ballpoint pen head with a full needle tube, adopt a specially made extremely shortened top wire stable anti-bias structur...

Claims

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Application Information

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IPC IPC(8): B43K7/08B43K1/08
CPCB43K7/08B43K1/086
Inventor 冯文达兰天擎
Owner 冯文达