CN201257827Y - Ball pen - Google Patents

Abstract

The utility model discloses a ball pen, which is characterized in that a pen holder is formed by a helical pen core. The ball pen is not provided with a pen case, namely a link is reduced in production, therefore, waste of a pen holder is reduced when the pen is discarded. In addition, the length of the pen core is increased, so that the capacity of the pen core is increased, and the service life of the pen is prolonged.

Description

Ball pen

Technical field

The utility model relates to a kind of ball pen of environment-friendly type, specifically a kind of pen that does not have penholder.

Technical background

In the work of reality careless, the pen core that we often get used to having consumed is together thrown away together with a shell, may be that pen core and the existing penholder bought separately are incompatible, also may be that a shell is used old, whatsoever reason has all caused the waste of resource virtually, is unfavorable for environmental protection.

Summary of the invention

The purpose of this utility model provides a kind of ball pen that need not a shell just can directly use

The technical scheme of the invention for solving the technical problem is: a kind of ball pen, its feature comprise that spiral helicine pen core constitutes a penholder.

Ball pen described in the utility model is characterized in that: from the nib to the top, next stage pitch is less than upper level pitch.

Ball pen described in the utility model is characterized in that: pen core and the thickening of written junction.

Ball pen described in the utility model is characterized in that: whole one-tenth back taper type.

The utility model beneficial effect is: do not have a shell, promptly lacked a link on producing, reduced the penholder waste in the time of people's jettisoning pen, increased the length of pen core in addition, increased the capacity of pen core, prolong the service life of pen.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified

Fig. 1 is use principle figure of the present utility model.

Fig. 2 is the partial enlarged drawing at Fig. 1 a place.

The specific embodiment

Referring to Fig. 1-2, the implementation case comprises: a kind of ball pen, spiral helicine pen core 1 constitutes a penholder 2.To the top 4, next stage pitch is less than upper level pitch from nib 3; Pen core 1 is thickeied with written 3 junctions, can increase the rigidity of pen.Ball pen described in the utility model, whole one-tenth back taper type meets the custom that people hold a pen.

Claims (3)

1, a kind of ball pen, its feature comprise that spiral helicine pen core constitutes a penholder.

2, ball pen as claimed in claim 1 is characterized in that: from the nib to the top, next stage pitch is less than upper level pitch.

3, ball pen as claimed in claim 1 or 2 is characterized in that: pen core and the thickening of written junction.

Images