CN2587658Y

CN2587658Y - Ball-point fountain pen

Info

Publication number: CN2587658Y
Application number: CN 02283747
Authority: CN
Inventors: 吴琅祖
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-26
Filing date: 2002-10-26
Publication date: 2003-11-26
Anticipated expiration: 2012-10-26

Abstract

The utility model discloses a ball-point fountain pen which comprises a pen holder and a pen head, wherein the pen head is arranged on the front end of the pen holder, ink is filled in the pen holder, an air inner liner is arranged in the pen holder, the rear end of the air inner liner is fixed with the pen holder, and the tail end of the air inner liner is provided with an air vent. The air inner liner is sheathed on a soft plug with an air vent, and the air inner liner is fixed to the rear end of the pen holder through the soft plug. The air inner liner is made of airtight thin film materials. After the rear end of the air inner liner is fixed with the pen holder, a main part is automatically absorbed on the inner wall of the pen holder. The air inner liner can balance the inner pressure of the pen holder to increase the storage capacity of the ink.

Description

A kind of ballpoint pen

Technical field

The utility model belongs to the stationery field, specifically, relates to a kind of ballpoint pen.

Background technology

Ballpoint pen is a kind of writing implement that is in daily use, and it generally is disposable, is made up of nib and penholder, and the cavernous body of inhaling full ink is set in the penholder, allows ink pass through nib when writing and flows out.In order to make the ballpoint pen fluent writing, must have passage on the penholder, make and keep certain pressure in the penholder, so just limited the interior ink of penholder and can not irritate too much, otherwise written flow is uncontrollable.In the reality, often the ink reserves of one-pen are write the article of one piece of moderate-length not enough.

Summary of the invention

To be solved in the utility model is the not enough technical problem of ballpoint pen pondage, and a kind of ballpoint pen that adopts new pressure balance mode is provided.

The technical solution of the utility model is such: a kind of ballpoint pen, comprise penholder and nib, and nib is contained in the penholder front end, and penholder is built-in with ink, also is provided with the air inner bag in the penholder, and the rear end and the penholder of air inner bag fix, and its afterbody has passage.

The fixed form of air inner bag and penholder is a lot, and reasonable way is to be enclosed within on the cork that has passage, and cork is fixed on the penholder rear end with the air inner bag.The air inner bag should adopt air-locked thin-film material to make; After its rear end and penholder fixed, main part just was adsorbed in the penholder inwall naturally.

The utility model has been placed the air inner bag in penholder, and the air inner bag is the band passage, and it can expand and shrink lentamente like this, and when pouring into ink in penholder, the gas in the air inner bag is drained, become a slice film and be attached at the penholder inwall; When writing, air enters inner bag by the passage of afterbody, and inner bag is expanded, and squeezeout ink makes it to flow out from nib.Adopt after such structure, can in whole penholder, store full ink, simultaneously fluent writing.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment.

The specific embodiment

Referring to accompanying drawing.The ballpoint pen of present embodiment is made up of penholder 1 and nib 2, and nib is at the penholder front end, and the penholder rear end has the cap for brush 7, diversion core 3 is housed on the nib stretches in the penholder 1, contain ink in the penholder 1.The air inner bag 4 that present embodiment also has film to make, its rear end are enclosed within on the cork 5, and cork 5 has passage 6, and air inner bag 4 expands with the number of ink in the penholder or shrinks, and keep the pressure balance in the penholder.

Protection domain of the present utility model is not limited to the foregoing description, also can adopt the nib of not being with the diversion core, and the ink in the penholder flows directly to nib; Or be used for adding the ballpoint pen of ability of swimming, and promptly nib flexibly connects with penholder, and unloading can water filling in penholder after the nib.The ballpoint pen of these structures can be placed the air inner bag equally in penholder, reach balance penholder internal pressure, thereby increases the goal of the invention of pondage.

Claims

1. a ballpoint pen comprises penholder and nib, and nib is contained in the penholder front end, and penholder is built-in with ink, it is characterized in that: also be provided with the air inner bag in the penholder, the rear end and the penholder of air inner bag fix, and its afterbody has passage.

2. ballpoint pen as claimed in claim 1 is characterized in that: the air inner bag is enclosed within on the cork that has passage, and cork is fixed on the penholder rear end with the air inner bag.

3. ballpoint pen as claimed in claim 2 is characterized in that: described air inner bag is a thin film inner container.

4. as each described ballpoint pen of claim 1 to 3, it is characterized in that: the main part of air inner bag is adsorbed in the penholder inwall.