CN102555603A - Refill - Google Patents

Abstract

The invention discloses a refill, belonging to the technical field of pen manufacturing. The refill is H series and B series lead refill and long-stripped. The section of the refill is oval. The front end of the refill is provided with a refill sharp. The refill is simple and reasonable in structure, easy to manufacture and low in cost. The refill is matched with a pen in use by directly inserting the refill into a pen holder. The flat (with an oval section) refill is clamped and fixed easily by a refill clamping opening and an elastic clamping head to prevent the refill from sliding. When the refill is used, a pusher on the pen holder is pushed to push out the refill constantly until obtaining the needed length of the refill to write. The refill is simple and convenient to operate and can be used until only 0.5-1cm of refill is left so as to avoid that long pen point and refill are abandoned and avoid waste of resources and environment pollution. The refill disclosed by the invention is applied to H series and B series lead refill, colorful and water soluble lead refill as well as crayons and chalks for children and the like.

Description

A kind of pen core

Technical field

The present invention relates to a kind of structure of pen core, relate in particular to a kind of environmental protection, the structure of health, the lead for retractable pencil that economizes on resources belongs to system pen technology field.

Background technology

The traditional pencil and the pen core of colored pencil all are the cylinder rods generally, are wrapped in the wood pen holder.In the use, need often planing, make pen core expose use, when pencil uses residue 5-6 centimetre when long or when more longer, used just inconveniently, tend to thrown away, waste very big because of the inconvenience quilt that holds a pen.Volume is cut in the use wood chip, lead powder can't reclaim use, also cause very big waste, simultaneously contaminated environment.People protect environment for resource conservation, and are easy to use, and the lettering pen that comprises pencil has been done many researchs; For example number of patent application is a kind of pen of 200920283162.5, and pen core adopts traditional cylinder rod, and pen core places in the chamber of pen; Easy to use, economize on resources the protection environment.Sliding phenomenon appears in the fixing main sandwich mouth and the collet of leaning on of cylinder rod pen core easily.So, be badly in need of on the market wanting the matching used of a kind of and this pen, be easy to fix the pen core of good stability.

Summary of the invention

The object of the invention is exactly for satisfying the needs in market, a kind of pen core is provided, and this pen core is easy to fix, good stability, and environmental protection, health, utilization rate is high.

The objective of the invention is to realize like this, a kind of pen core is characterized in that said pen core is a lead for retractable pencil, and pen core is a strip, and section ovalize, front end are provided with the pen core point.

Said lead for retractable pencil is H series and B series.

Said ovalize is that a relative edge is a straight flange, and another relative edge is the quadrangle on circular arc limit.

The present invention is simple and reasonable, manufactures easily, and cost is low.This pen core and the patent No. are 200920283162.5 the supporting use of a kind of pen, and pen core is directly inserted in the penholder.Sandwich mouth and collet, the pen core of flat (the section ovalize) that be easy to be fixedly clamped can avoid occurring sliding phenomenon.Promoting propeller on the penholder in use releases the laggard running hand of length that needs endlessly with pen core and writes.Its mode of operation is very simple, efficient and convenient.Can avoid very long nib, pen core to be dropped with pen core with only remaining 0.5 to 1 centimeter to the end, waste resource, contaminated environment.The pen core scope of application of the present invention has: H series and B series lead for retractable pencil, colored and water-soluble lead for retractable pencil.Also can be the crayon that uses of children and chalk etc.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is an A-A cross-sectional view among Fig. 1;

Fig. 3 is a front end nib structure sketch map of the present invention.

Among the figure: 1 pen core, 2 pen cores point.

The specific embodiment

Pen core 1 is H series and B series lead for retractable pencil.Pen core is the strip flat, and section ovalize (relative edge is a straight flange, and another relative edge is the quadrangle on circular arc limit), front end have pen core point 2.The pen core and the patent No. are 200920283162.5 the supporting use of a kind of pen, pen core are inserted in the penholder the be fixedly clamped pen core of flat (section ovalize) of sandwich mouth and collet.The propeller that promotes on the penholder during use is released pen core gradually.

Claims (3)

1. a pen core is characterized in that said pen core is a lead for retractable pencil, and pen core is a strip, and section ovalize, front end are provided with the pen core point.

2. a kind of pen core according to claim 1 is characterized in that said lead for retractable pencil is H series and B series.

3. a kind of pen core according to claim 1 is characterized in that said ellipse is that a relative edge is straight flange, and another relative edge is the quadrangle on circular arc limit.

Images