KR20100093904A

KR20100093904A - Ink injector for ink cartridge

Info

Publication number: KR20100093904A
Application number: KR1020090013046A
Authority: KR
Inventors: 이정복
Original assignee: 이정복
Priority date: 2009-02-17
Filing date: 2009-02-17
Publication date: 2010-08-26
Also published as: WO2010095788A1

Abstract

PURPOSE: An ink feeder for an ink cartridge is provided to reduce a time for re-feeding ink to an ink cartridge by selecting a falling method and a pumping method. CONSTITUTION: An ink feeder for an ink cartridge comprises a container(30), an absorbent member(34), a needle protective cap(35), a combining member(37) and a pumping member(40). The top part of the container is opened. An outlet(31) is combined with an insertion needle(32) which is formed on the lower part of the container. Ink(21) is contained inside the container. The absorbent member is located in a bottom cap(33) combined in the lower part of the container and absorbs leaked ink. The needle protective cap is combined in the lower of the bottom cap and protects the insertion needle.

Description

Ink injector for ink cartridges {Ink injector for ink cartridge}

The present invention relates to an ink injection device for an ink cartridge, and more particularly, to an ink injection device for an ink cartridge for quickly and accurately re-injecting ink into an ink cartridge which has used up stored ink.

In general, various printers, particularly inkjet prints, are relatively inexpensive and have satisfactory print quality compared to laser prints, and thus are widely used in offices as well as general homes.

Ink cartridges used in such inkjet printers run out of ink in the cartridge after a certain amount of time or a certain number of prints, and cartridges that have run out of ink are replaced with new cartridges or refilled ink. By refilling the ink in used cartridges, it not only reduces the economic burden, but also helps recycle resources.

Conventionally, an apparatus for refilling ink in such an ink cartridge, as shown in FIG. 1, refills ink by using an injector 20 in a sponge 11 provided inside the cartridge body 10. 20 is an injection needle 24 is coupled to the discharge port 23 formed on the lower side of the injector container 22 in which the ink 21 is stored therein, and an air vent 25 is formed above the injector 20. The exhaust port 25 has a configuration in which a cover 27 having a protrusion 26 is coupled to be opened and closed.

Therefore, when the ink 21 stored in the ink cartridge body 10 is exhausted, the injection needle 24 is coupled to the injector 20, and then the injection needle 24 is inserted into the cartridge body 10, and then the cover ( When the protrusions 26 coupled to the air vents 25 are opened by opening 27, air is introduced through the air vents 25 so that the ink 21 therein is absorbed into the sponge 11 in the cartridge body 10. do.

However, this conventional technique not only takes a lot of refilling time of the ink because the supply of the ink is caused by a natural drop, but also when a predetermined amount or more is injected when injecting the ink, the ink is discharged to the outside of the cartridge body to close the cartridge. Problems such as polluting were inherent.

In order to solve these problems, an ink injection device for an ink cartridge, which has been filed by the present inventors as a patent application No. 2009-80793, has been proposed in the related art. Although there is an advantage of selecting the ink injection, the upper part of the injector container is integrally formed so that when the ink is injected into the inside of the injector container, it must be injected before joining the lower injection needle, which makes the injection operation of the ink very difficult and the ink injection time This takes a lot, there are problems such as the injection needle coupled to the lower part is not easy to handle or store.

The present invention has been invented to solve the above problems, an object of the present invention is to supply ink in a natural drop or forced pumping method as well as ink ink for ink cartridges that are easy to inject the ink into the injector An injection device is provided.

It is another object of the present invention to provide an ink injection device for an ink cartridge which prevents damage to the injection needle, and which is easy to handle and store.

The ink injection device for an ink cartridge according to the present invention for achieving the object as described above, the injection opening is coupled to the discharge port formed in the upper portion and the lower portion, the container storing the ink therein, and coupled to the lower side of the container An absorbent member provided inside the lower cap to absorb the leaked ink, a needle protective cap coupled to the lower side of the lower cap to protect the injection needle, and a sealing sheet coupled to the upper inner side of the container and capable of being ruptured And a pumping means having a coupling member having a coupling member and a bursting member coupled to an upper portion of the container to forcibly supply air inwardly.

According to the present invention, the method of supplying ink can be selected as a natural drop or forced pumping method, so that the ink injection operation is very easy and convenient, the injection time is shortened, the ink is easily injected into the injector container, and the injection needle is deformed. It can be prevented from being damaged or damaged to facilitate storage and handling.

Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

2 is a cross-sectional view showing an ink injection device for an ink cartridge according to the present invention, in which an injector container 30 in which an ink 21 is stored is opened at an upper portion thereof, and an injection needle 32 is formed at an outlet 31 formed at a lower portion thereof. Is combined.

The lower cap 33 is coupled to the lower outer side of the container 30, and the absorbing member 34 is filled in the lower cap 33 to absorb ink overflowing or leaking after injection. .

The absorbing member 34 is preferably composed of a sponge or microfiber fibers.

And a lower protective cap 35 is formed on the lower side of the lower cap 33 to prevent the injection needle 32 from being deformed or damaged by an external impact or the like during transportation, use or storage.

The tip of the injection needle 32 is coupled to the leakage preventing cap 36 to prevent the ink 21 from leaking when the ink 21 is not injected, the leakage preventing cap 36 is soft, such as silicon It is formed of a synthetic resin is fixed to the center of the needle protection cap (35).

On the other hand, the upper side of the container 30 is coupled to the coupling member 37, the center of which is opened to seal through the O-ring (37a), the lower side of the coupling member 37 into the interior of the container 30 A sealing sheet 38 is attached to prevent the injected ink 21 from flowing upward.

The sealing sheet 38 is most preferably formed of a metal foil sheet such as silver foil so as to be ruptured by an external impact.

An upper side of the container 30 is provided with a pumping means 40 for forcibly pumping air into the inside to forcibly discharge the ink 21 stored therein.

The pumping means 40 is coupled to the upper outer side of the container 30 and the pumping member 41 formed of a soft synthetic resin material such as silicon having an elastic force, and coupled to the upper side of the pumping member 41 and the sealing at the front end It has a cutter portion 42a that can rupture the sheet 38 and has a rupture member 42 having an air passage 42b so that external air can be introduced therein, and is provided inside the pumping member 41. And a spring 43 for returning the compressed pumping member 41 to its original state.

The bursting member 42 is provided with a stopper 44 that can close or open the air passage 42b.

The ink injection apparatus for an ink cartridge according to the present invention configured as described above recharges and uses the refilling ink when the ink of the used ink cartridge is exhausted.

First, the needle protection cap 35 and the leakage preventing cap 36 are separated, and then the injection needle 32 is inserted into the upper injection hole of the cartridge body 10 as shown in FIG. 3 and the stopper 44 is pumped. When the pumping member 41 is pressed after the separation from the 41, the bursting member 42 is lowered.

In addition, as the cutter portion 42a of the rupture member 42 ruptures the sealing sheet 38, the air passage 42b of the container 30 and the rupture member 42 is opened to communicate with the injector container 30. Atmospheric pressure is applied to the inside of the), and thus the ink 21 stored therein naturally falls through the discharge port 31 and the injection needle 32 and is supplied into the cartridge body 10.

In this case, when the discharge speed of the ink 21 is increased, when the pumping means 40 is operated, the pressure of the air is forcibly acted on the inside of the injector container 30, thereby increasing the discharge speed of the ink 21. Done.

That is, as shown in FIG. 4, when the finger F is positioned on the upper side of the pumping member 41 and gradually pressed in a state in which the air passage 42b is blocked, the pump 43 is compressed while the spring 43 is compressed. The air inside the pumping member 41 is introduced into the container 30 through the ruptured portion of the sealing sheet 38 to apply pressure to the ink 21.

Subsequently, the ink 21 stored in the interior of the container 30 is forcibly discharged into the cartridge body 10 through the discharge port 31 and the injection needle 32.

Accordingly, in the present invention, when the ink 21 is injected, the ink 21 may be injected by natural falling in the state in which the stopper 44 is opened, or by forcibly pumping by manipulating the pumping means 40. It is possible to choose to inject the ink 21.

In this case, when the ink 21 is forcibly injected by operating the pumping means 40, the injection time can be significantly shortened than the ink 21 is injected by natural falling.

On the other hand, when the ink is injected, the ink 21 discharged or leaked from the cartridge body 10 is absorbed by the absorbing member 34 accommodated in the lower cap 33, so that the peripheral portion of the cartridge body 10 even after ink injection. This stays very clean.

In addition, when the needle protection cap 35 is coupled to the tip of the container 30, the injection needle 32 is prevented from being damaged or deformed even when not in use or during handling such as transportation. In particular, the needle protection cap 35 is injected into the needle protection cap 35. By providing a leakage preventing cap 36 in which the tip of the needle 32 is inserted, the ink 21 is not leaked through the injection needle 32.

The present invention as described above is not limited to the above-described specific embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various changes without departing from the gist of the present invention as claimed in the claims. will be.

The present invention can be applied not only to injecting ink into an ink cartridge but also to refilling a liquid into a cartridge having a liquid stored therein.

1 is a cross-sectional view showing a conventional ink injection device for an ink cartridge.

Fig. 2 is an overall sectional view showing the ink injection device for an ink cartridge according to the present invention.

Figure 3 is a cross-sectional view showing the ink injection state by the natural drop in the ink cartridge ink injection device according to the present invention.

4 is a cross-sectional view showing an ink injection state by a forced injection method in the ink cartridge ink injection apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

21: ink 30: container

31: outlet 32; Injection needle

33: lower cap 34: absorbing member

35: Needle protection cap 36: Leakage prevention cap

37: coupling member 38: sealing sheet

40: pumping means 41: pumping member

42: rupture member 42a: tip portion

42b: air passage 43: spring

Claims

An injection needle 32 is coupled to an outlet 31 formed at an upper portion thereof, and a container 30 storing ink 21 therein;

An absorbing member 34 provided inside the lower cap 33 coupled to the lower side of the container 30 to absorb the leaked ink;

A needle protection cap 35 coupled to a lower side of the lower cap 33 to protect the injection needle 32;

A coupling member 37 coupled to the upper inside of the container 30 and having a sealing sheet 38 capable of being ruptured; And

And a pumping means (40) having a rupture member (42) coupled to an upper portion of the container (30) to forcibly supply air to the inside.

The method of claim 1,

The pumping means 40 includes a pumping member 41 having an elastic force coupled to the upper portion of the container 30, a spring 43 seated on the inner side of the pumping member 41, the bursting member 42 ) Is an ink injection device for an ink cartridge, characterized in that the tip portion (42a) for rupturing the sealing sheet 38 is formed at the front end and an air passage (42b) for distributing air therein.

The method of claim 1,

The needle protection cap 35 is an ink injection device for an ink cartridge, characterized in that the leakage prevention cap 36 is provided with a tip of the injection needle 32 is inserted.