JP2019034426A - Writing instrument cleaning method and writing instrument cleaning device - Google Patents

Abstract

To provide a writing instrument cleaning method and a writing instrument cleaning device which, when cleaning an ink passage and a pen point of a writing instrument, can clean them reliably and in a short time without worrying about the remaining amount of cleaning liquid even if the degree of contamination with ink is high.SOLUTION: Cleaning is performed by a writing instrument cleaning device including a connecting portion 2 for connecting a writing instrument, circulating means, a cleaning solution circulation path, and a storage tank 6. Since the cleaning liquid circulates in the writing instrument through the cleaning liquid circulation path by the circulation means, even if the degree of the contamination with the ink is large, the cleaning can be performed reliably and in a short time.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method and apparatus for cleaning the inside of a writing instrument.

  Conventionally, writing instruments such as fountain pens and drafting pens that are connected to an ink cartridge or a converter are well known. These fountain pens and drafting pens can be replaced with ink cartridges that are newly filled with ink or when ink is drawn into the converter from the pen tip when the ink inside the ink cartridge or the converter is lost due to writing. By doing so, the writing instrument body can be used without being discarded.

When such a writing instrument is left unused for a long period of time, the water in the ink gradually evaporates, and ink components such as dyes and pigments clump in the ink passage and the nib of the writing instrument. May end up.
Accordingly, when the ink is used again after it has not been used for a long time or after it has been left for a long time, the ink passage of the writing instrument and the nib are washed with a liquid such as water, lukewarm water, or a cleaning liquid.
Also, for example, when a black ink and a red ink are connected to a writing instrument that was used with a black ink cartridge connected, a black ink and a red ink are used. In order to prevent the handwriting from becoming turbid due to mixing inside, or to prevent coagulation due to mixing of different types of ink, the black ink remaining in the ink passage of the writing instrument or the nib remaining in the pen tip is washed with water, lukewarm water, washing liquid, etc. Washing with a liquid for use is also performed.
In the conventional cleaning of the writing instrument, if the degree of stain due to ink is large, the writing instrument with the ink cartridge or converter removed is immersed in water, lukewarm water, cleaning liquid, etc. for 1 to 2 hours. When the writing instrument is left for a long period of time and used again, the ink has solidified in the ink passage of the writing instrument, so the writing instrument with the ink cartridge or converter removed can be used for water, lukewarm water, washing liquid, etc. Soaking overnight is done.
In addition, after cleaning is completed, liquid such as water, lukewarm water, and cleaning liquid adheres in the ink passage of the writing instrument. Therefore, in order to prevent the ink from being diluted by the liquid and the writing on the writing instrument from becoming thin, Before the cartridge or converter was connected and used, it was necessary to dry the ink passage of the writing instrument naturally, or to discharge the liquid by attaching a pen tip to a tissue or a piece of cloth.

In addition, as shown in Patent Document 1 (Japanese Utility Model Publication No. 5-385), a connection port coupled to a liquid supply port of a writing instrument is provided in an extraction port of a cylinder in which a cleaning liquid is compressed and sealed. There is also a vacuum cleaner for liquid-use writing instruments that has a crown-operated cap.
However, in this cleaner, since the amount of cleaning liquid compressed and sealed in the cylinder is limited, the degree of stain due to ink is large, or when the ink is solidified in the ink passage of the writing instrument. However, since there is a possibility that the cleaning liquid may be exhausted before the stain is sufficiently removed or the solidified ink is removed, it is necessary to worry about the remaining amount of the cleaning liquid and gas in the cylinder.
Further, like the above-described conventional cleaning, after the cleaning is completed, it is necessary to naturally dry or discharge the cleaning liquid remaining in the ink passage of the writing instrument.

Japanese Utility Model Publication No. 5-385

  The present invention has been made in consideration of such conventional problems. Even when the degree of smear due to ink is large or the ink is solidified in the ink passage, the cleaning liquid remains. It is an object of the present invention to obtain a writing instrument cleaning method and a writing instrument cleaning apparatus capable of reliably and quickly cleaning the ink passage and the nib of the writing instrument without worrying about the amount.

The present invention
“1. A writing instrument cleaning method in which a writing instrument is connected to a cleaning liquid circulation path and the inside of the writing instrument is cleaned with a cleaning liquid circulated through the cleaning liquid circulation path by a circulation means.
2. A writing instrument cleaning apparatus comprising a connecting portion for connecting a writing instrument, a circulation means, a cleaning liquid circulation path, and a storage tank.
3. 3. The writing instrument cleaning apparatus according to item 2, wherein a cleaning tank is provided between the connecting portion and the storage tank.
4). 4. The writing instrument cleaning apparatus according to claim 2, wherein a discharge hole is provided in the cleaning tank, and an air inflow valve is provided between the circulation means and the storage tank. Is.

  According to the present invention, the writing instrument is connected to the cleaning liquid circulation path, and the inside of the writing instrument is washed with the cleaning liquid circulated through the cleaning liquid circulation path by the circulation means. Even when the ink is solidified, the inside of the ink passage of the writing instrument can be reliably and quickly cleaned without worrying about the remaining amount of the cleaning liquid. By providing a cleaning tank between the two, the inner and outer surfaces of the pen tip can be cleaned reliably and in a short time. In addition, a discharge hole is provided in the cleaning tank and air flows between the circulation means and the storage tank. By providing the valve, the ink passage of the writing instrument can be reliably dried in a short time after the cleaning is completed.

The connecting portion in the present invention is formed of a substantially tubular body, and is formed so that one end communicates in a liquid-tight state with a circulation means or a cleaning liquid circulation path communicated with the circulation means, and the other end is in a liquid-tight state with an ink passage of the writing instrument. In this way, the cleaning liquid can be efficiently fed into the ink passage of the writing instrument.
Therefore, the inner shape of the lower end of the connecting part can be formed so as to match the outer shape of the ink cartridge connecting part of the writing instrument and the converter connecting part of the writing instrument, or the inner shape of the lower end of the connecting part can be formed after the neck of the writing instrument. It is formed to match the outer surface shape of the end part, or a rubber O-ring or the like is provided on the outer surface of the lower end part of the connecting part to closely contact the inner surface of the rear end part of the neck shaft of the writing instrument, or the connecting part itself It is preferable to form with the soft material which deform | transforms easily. Further, the connecting portion and the circulation means may be formed integrally, or the connecting portion and the cleaning liquid circulation path may be formed integrally.
In addition, the material of the connecting portion only needs to be water resistant to liquids such as water, ink, and cleaning liquid. For example, silicone resin, polyurethane resin, polyvinyl chloride resin, polyethylene resin, polyethylene terephthalate resin, polypropylene resin, polystyrene It can be formed of a resin such as a resin. Moreover, it becomes possible to visually recognize the cleaning liquid flowing inside the connecting portion by selecting a transparent one.
When the connecting portion is formed of a metal, it is preferably formed of stainless steel having strong corrosion resistance against the cleaning liquid and ink. Further, the connecting portion can be formed by combining a resin and a metal.

As the circulation means in the present invention, a positive displacement pump or a non-positive displacement pump can be used, and a diaphragm pump that is less likely to cause problems such as contamination of foreign substances in the cleaning liquid and leakage of the cleaning liquid is preferably used.
In addition, by using a pump with a large capacity, cleaning can be performed reliably and in a short time.
In terms of performance, a pump having a discharge amount of 22 mL / sec or more and a discharge pressure of 0.3 MPa or more is preferably used, but may be selected in consideration of the size of the entire apparatus.
Moreover, the power source for driving the pump can be selected as appropriate, such as a household power source or a portable battery.When using a household power source, the usage time is not limited, and when using a portable battery, There is no restriction on the place of use.

The cleaning liquid circulation path in the present invention is constituted by a tubular body such as a tube.
Further, the cleaning liquid circulation path can be provided between the connecting portion and the circulation means or between the circulation means and the storage tank. Further, the cleaning liquid can be efficiently circulated by forming the connection portion and the tubular body or the tubular body and the circulation means so as to communicate with each other in a liquid-tight state. Further, the cleaning liquid circulation path and the connecting portion may be integrally formed.
In addition, the material of the cleaning liquid circulation path may be water resistant to liquids such as water, ink, and cleaning liquid. For example, silicone resin, polyurethane resin, polyvinyl chloride resin, polyethylene resin, polyethylene terephthalate resin, polypropylene resin, It can be formed of a resin such as polystyrene resin. Further, by selecting a transparent one, it becomes possible to visually recognize the cleaning liquid flowing inside the cleaning liquid circulation path.
When the cleaning liquid circulation path is formed of metal, it is preferable to form the cleaning liquid or stainless steel with strong corrosion resistance against the cleaning liquid or ink. The cleaning liquid circulation path can also be formed by combining a resin and a metal.
Moreover, you may provide a filter in the front-end | tip part, terminal part, intermediate part, etc. of a washing | cleaning-liquid circulation path. By providing a filter, the solid matter in which the ink component is hardened from the ink passage of the writing instrument is peeled off by washing and flows into the washing liquid, or even if dust or dust is mixed into the washing liquid. Objects, dust, dust and the like can be removed from the cleaning liquid and air flowing through the cleaning liquid circulation path, and solids, dust, dust and the like can be prevented from entering the ink passage of the writing instrument.

The storage tank in this invention is a container which can accommodate a washing | cleaning liquid inside.
The storage tank can be formed of a resin, metal, glass, or the like that is water resistant to liquids such as water, ink, and cleaning liquid. For example, it can be formed of a resin such as ABS resin, AS resin, polycarbonate resin, polyethylene resin, polyethylene terephthalate resin, acrylic resin, polyacetal resin, polypropylene resin, polystyrene resin, etc., and by selecting a transparent one, It becomes possible to visually recognize the cleaning liquid flowing inside the storage tank.
When the storage tank is made of metal, it is preferably formed of stainless steel or the like that has strong corrosion resistance against the cleaning liquid and ink. The storage tank can also be formed by combining resin and metal.
Moreover, you may provide a heater in a storage tank. By providing the heater, the cleaning liquid can be heated and kept warm to improve the cleaning power of the cleaning liquid.
Moreover, you may provide the cover formed with resin, a metal, glass etc. in the upper part of a storage tank. By providing the cover, it is possible to prevent dust and dust from being mixed into the cleaning liquid.

As the cleaning liquid in the present invention, water, an organic solvent, a surfactant, and the like can be appropriately selected and used in consideration of the material of the writing instrument that is the object to be cleaned, the ink component, and the like.
In addition, when the amount of the cleaning liquid is too small, the amount of the cleaning liquid is preferably 70 ml or more because the ink eluted in the cleaning liquid from the ink passage or the pen tip of the writing tool may adhere to the writing tool again when the writing tool is cleaned.

In addition, a cleaning tank may be provided between the connecting portion and the storage tank.
When a cleaning tank is provided, the writing liquid with the nib pointing downwards can be suspended inside the cleaning tank so that the cleaning liquid that has flowed down from the ink passage of the writing instrument into the cleaning tank can be washed while the pump is operating. It is possible to obtain the effect of cleaning the surface of the pen tip with the cleaning liquid that accumulates in the tank and overflows from the upper part of the cleaning tank and flows upward from the lower side of the cleaning tank.
The cleaning tank can be formed of a resin, metal, glass, or the like that is water resistant to liquids such as water, ink, and cleaning liquid. For example, it can be formed of a resin such as ABS resin, AS resin, polycarbonate resin, polyethylene resin, polyethylene terephthalate resin, acrylic resin, polyacetal resin, polypropylene resin, polystyrene resin, etc., and by selecting a transparent one, It becomes possible to visually recognize the cleaning liquid flowing inside the cleaning tank.
When the washing tank is made of metal, it is preferably made of stainless steel having strong corrosion resistance against the washing liquid and ink. The cleaning tank can also be formed by combining a resin and a metal.
Further, a discharge hole may be provided below the cleaning tank. The discharge port may have any shape, but by setting the discharge amount of the cleaning liquid from the pump more than the discharge amount of the cleaning liquid from the discharge hole, the cleaning liquid flowing down from the ink passage of the writing instrument to the cleaning tank during the pump operation When the liquid is not completely discharged from the discharge hole and accumulates in the cleaning tank and overflows from the upper part of the cleaning tank, it is possible to obtain an effect of cleaning the surface of the pen tip with the cleaning liquid flowing upward from the lower side of the cleaning tank. In addition, after the pump is stopped, the cleaning liquid in the cleaning tank flows down from the discharge hole to the storage tank and the writing instrument comes into contact with the air, so that the effect of drying the ink passage and the pen tip can be obtained.
Further, an ultrasonic vibrator may be provided in the cleaning tank. The ultrasonic vibrator generates cavitation in the cleaning liquid in the cleaning tank, and assists in the removal of dirt attached to the ink path of the writing instrument and the pen tip.

Moreover, an air inflow valve can be provided between the circulation means and the storage tank.
When the air inflow valve is provided, an air inflow valve having a cleaning liquid inlet, an outlet, and an air inlet can be used, and an operation method such as a manual type or an electric type can be appropriately employed.
An air inflow valve is provided in the middle of the cleaning liquid circulation path so that the cleaning liquid inlet and outlet are connected to the cleaning liquid circulation path. Intake air and blow air into the ink passage of the writing instrument to remove the cleaning liquid remaining in the ink path of the writing instrument and the nib and dry the ink path and nib of the writing instrument in a short time. Is possible.
The material of the air inflow valve may be water resistant to liquids such as water, ink, and cleaning liquid, and may be formed of, for example, a resin such as polyacetal resin or a metal.
When the air inlet valve is made of metal, it is preferably made of stainless steel or the like that has strong corrosion resistance against cleaning liquid and ink. Further, the connecting portion can be formed by combining a resin and a metal.

  Further, a cover may be provided above the storage tank or above the cleaning tank. By providing the cover, it is possible to prevent dust and dust from being mixed into the cleaning liquid.

  According to the present invention, even when the degree of stain due to the ink is large or even when the ink is solidified in the ink passage, the cleaning liquid circulates without worrying about the remaining amount of the cleaning liquid. It is possible to obtain a writing instrument cleaning method and a writing instrument cleaning apparatus capable of reliably and quickly cleaning the ink passage and the nib of the writing instrument.

It is a schematic longitudinal cross-sectional view of the writing instrument washing | cleaning apparatus of the 1st Embodiment of this invention. It is a schematic longitudinal cross-sectional view which shows the state which connected the fountain pen to the writing instrument washing | cleaning apparatus of FIG. It is a general | schematic principal part longitudinal cross-sectional view which shows the state which wash | cleans a fountain pen with the writing instrument washing | cleaning apparatus of FIG. It is a schematic longitudinal cross-sectional view which shows the state which is drying the fountain pen with the writing instrument washing | cleaning apparatus of FIG. It is a schematic longitudinal cross-sectional view which shows the state which connected the fountain pen to the writing instrument washing | cleaning apparatus of the 2nd Embodiment of this invention.

  Hereinafter, a writing instrument cleaning method and a writing instrument cleaning apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic longitudinal sectional view of a writing instrument cleaning apparatus according to a first embodiment of the present invention, and FIG. 2 is a schematic longitudinal sectional view showing a state in which a fountain pen is connected to the writing instrument cleaning apparatus of FIG. FIG. 3 is a schematic vertical sectional view showing a main part of the fountain pen being cleaned by the writing instrument cleaning apparatus of FIG. 1, and FIG. 4 is a schematic view of the fountain pen being dried by the writing instrument cleaning apparatus of FIG. It is a longitudinal cross-sectional view.

As shown in FIG. 1, the writing instrument cleaning apparatus 1 according to the present embodiment accommodates a cleaning tank 8 composed of a bottom surface and a wall surface in a storage tank 6 composed of a bottom surface and a wall surface. A cover 10 is provided above the upper part of the storage tank 6 and the upper part of the cleaning tank 8. The storage tank 6, the cleaning tank 8, and the cover 10 are made of polystyrene resin.
The storage tank 6 contains a cleaning liquid 7, the bottom surface of the cleaning tank 8 is provided above the liquid surface of the cleaning liquid 7, and a discharge hole 81 is provided near the bottom surface of the wall surface of the cleaning tank 8. Has been.
Above the cover 10, a diaphragm pump (hereinafter referred to as pump 4) is provided, and the discharge port 41 of the pump 4 penetrates the cover 10 and has a lower end portion suspended above the central portion of the cleaning tank 8. The first pipe 3 is inserted. The first pipe 3 is a tube formed of silicone resin.
The connection part 2 is inserted in the lower end part of the 1st piping 3, and the lower end part of the connection part 2 is formed so that the neck 100 of a fountain pen can be inserted detachably (refer FIG. 2). ). In addition, the connection part 2 is formed with the polyethylene resin.
A second pipe 5 penetrating the cover 10 and having a lower end immersed in the cleaning liquid 7 is inserted into the suction port 42 of the pump 4, and a cleaning liquid inlet 91 is provided in the middle of the second pipe 5. And an air inlet valve 9 having an outlet 92 and an air inlet 93 so that the cleaning liquid inlet 91 and the outlet 92 are connected to the second pipe 5 and the air inlet 93 is located outside the cover 10. It is. If this air inlet 93 is connected to the inside of the cover 10, the inside of the writing instrument cleaning apparatus 1 can be airtight, and entry of dust, dust, etc. from the outside can be prevented. The second pipe 5 is a tube made of silicone resin.

Next, the state of cleaning the ink groove, air groove and pen tip of the fountain pen will be described with reference to FIGS.
2 and 3 show that the shaft (not shown) and the ink cartridge (not shown) are removed from the fountain pen so that the front part 100 of the fountain pen is in the state, the nib 102 is directed downward, and the lower end of the connecting part 2 is shown. The neck 101 is inserted and hung inside the washing tank 8, and the air inlet valve 9 is “closed” so that air does not enter the second pipe 5 from the air inlet 93.
When the pump 4 is operated in this state, the cleaning liquid 7 flows from the storage tank 6 to the second pipe 5, the cleaning liquid inlet 91, the outlet 92, the second pipe 5, the suction port 42, the pump 4, the discharge port 41, and the first. The piping 3 and the connecting portion 2 are circulated in this order, and the cleaning liquid is fed into the pen core 103 to clean the ink groove 103a and the air groove 103b.
The cleaning liquid 7 that has cleaned the ink groove 103 a and the air groove 103 b of the pen core 103 flows down to the cleaning tank 8 and then flows down from the discharge hole 81 to the storage tank 6.
By setting the discharge amount of the cleaning liquid from the pump 4 larger than the discharge amount of the cleaning liquid from the discharge hole 81, the cleaning liquid 7 accumulates inside the cleaning tank 8 to clean the surface of the nib 102, and from above the cleaning tank 8. Overflow and flow down to the storage tank 6.
During the operation of the pump 4, the cleaning liquid circulation is continuously performed, so that the ink groove 103 a, the air groove 103 b, and the nib 102 of the fountain pen can be reliably and quickly cleaned.

Next, a state where the ink groove 103a, the air groove 103b, and the nib 102 of the fountain pen are dried will be described with reference to FIG.
When the pump 4 is stopped after the ink groove 103a, the air groove 103b and the nib 102 of the fountain pen are finished, the circulation of the cleaning liquid 7 is stopped, and the ink groove 103a and the air groove 103b of the fountain pen 100 are washed. The cleaning liquid 7 that has flowed down flows into the cleaning tank 8, and the cleaning liquid 7 that has accumulated inside the cleaning tank 8 flows into the storage tank 6 from the discharge hole 81, but a small amount is present in the ink groove 103 a and the air groove 103 b of the pen core 103. However, the cleaning liquid 7 remains.
In FIG. 4, the neck 101 of the front part 100 of the fountain pen is inserted into the connecting part 2, and the air inlet valve 9 is “opened” so that air enters the second pipe 5 from the air inlet 93. State.
When the pump 4 is operated in this state, air is taken in from the air inlet 93 and passes through the outlet 92, the second pipe 5, the suction port 42, the pump 4, the discharge port 41, the first pipe 3, and the connecting portion 2. Then, air was blown into the pen core 103, and the cleaning liquid 7 remaining in the ink groove 103a and the air groove 103b of the fountain pen was discharged so as to be blown away, so that drying could be performed reliably and in a short time.
The air blown out from the pen core 103 was released to the outside through the gap between the storage tank 6 and the cover 10.
In this embodiment, since all the members of the connecting portion 2, the first pipe 3, the second pipe 5, the storage tank 6, the washing tank 8, and the cover 10 are formed of a transparent resin, the writing instrument is washed. And the state of drying was visible.

Next, a fountain pen (manufactured by Pilot Corporation: kakuno (registered trademark) / product number: FKA-1SR) is mounted with a fountain pen ink cartridge ink (manufactured by Pilot Corporation / product number: IRF-12S), and a fountain pen cap is attached. Leave the ink cartridge in a 50 ° C environment with the ink cartridge removed, and after 0.8 ml of the ink in the ink cartridge has moved inside the pen core 103 and dried completely, remove the ink cartridge that has been emptied from the fountain pen. The same kind of ink cartridge is again attached to the fountain pen, and the fountain pen is left in an environment of 50 ° C. with the fountain pen removed. A fountain pen with ink solidified in the ink passage was reproduced.
The shaft and ink cartridge are removed from the fountain pen so that the front portion 100 of the fountain pen is in the state, the pen tip 102 is directed downward, and the neck shaft 101 is inserted into the lower end of the connecting portion 2 of the writing instrument cleaning apparatus 1 of the present embodiment. Then, with the air inlet valve 9 set to “closed”, 70 ml of 20 ° C. water was put into the storage tank 6 and the pump 4 (a diaphragm pump with a discharge amount of 22 mL / sec and a discharge pressure of 0.3 MPa) was operated. In about 15 minutes, the ink solidified in the ink passage of the fountain pen could be washed and removed.
Further, when the pump 4 is operated with the neck 101 of the front portion 100 of the fountain pen inserted into the connecting portion 2 and the air inflow valve 9 opened, the fountain pen is taken in about 5 minutes. The water remaining in the ink passage was discharged so as to be blown off and dried.

  Next, a writing instrument cleaning method and a writing instrument cleaning apparatus according to the second embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 5 is a schematic longitudinal sectional view showing a state where a fountain pen is connected to the writing instrument cleaning apparatus 11 according to the second embodiment of the present invention.
The writing instrument cleaning apparatus 11 according to the present embodiment has a connecting portion 21 inserted into the lower end of the second pipe 5 of the writing instrument cleaning apparatus 1 according to the first embodiment.
FIG. 5 shows that the shaft (not shown) and the ink cartridge (not shown) are removed from the fountain pen so that the front part 100 of the fountain pen is in the state, the pen tip 102 is directed downward, and the pen tip 102 is accommodated in the storage tank 6. The neck 101 is inserted into the lower end of the connecting part 2 so as to be immersed in the cleaning liquid 7 and the air inlet valve 9 is closed to prevent air from entering the second pipe 5 from the air inlet 93. It is in the state.
When the pump 4 is operated in this state, the inside of the second pipe 5 becomes negative pressure, and the cleaning liquid 7 is sucked up from the storage tank 6 through the ink groove 103a and the air groove 103b of the pen core 103. The ink groove 103a and the air groove 103b are washed.
The cleaning liquid 7 that has cleaned the ink groove 103a and the air groove 103b of the pen core 103 includes the connecting portion 21, the second pipe 5, the cleaning liquid inlet 91, the outlet 92, the second pipe 5, the suction port 42, the pump 4, and the discharge port. 41, the first pipe 3, and the connecting portion 2 are circulated in this order, flow down to the cleaning tank 8, and flow down from the discharge hole 81 to the storage tank 6.
During the operation of the pump 4, the cleaning liquid circulation is continuously performed, so that the ink groove 103 a, the air groove 103 b, and the nib 102 of the fountain pen can be reliably and quickly cleaned.

  In the writing instrument cleaning device 11, the shaft and ink cartridge are removed from the two fountain pens so that the front part 100 of the fountain pen is in the state, the nib 102 faces downward, the lower end of the connecting part 2 and the lower end of the connecting part 21 When the neck 101 is inserted into each of these, and the pump is operated with the air inflow valve 9 being “closed”, the cleaning liquid 7 is transferred from the storage tank 6 to the inside of the pen core 103, the connecting portion 21, and the second. Circulating pipe 5, cleaning liquid inlet 91, outlet 92, second pipe 5, suction port 42, pump 4, discharge port 41, first pipe 3, connecting portion 2, and pen core 103, in this order, and cleaning tank 8 The ink groove 103a, the air groove 103b, and the nib 102 of the two fountain pens can be simultaneously and reliably washed in a short time by flowing down to the storage tank 6 and circulating through the discharge hole 81. .

Moreover, as other embodiment, the branch part is provided in the 1st piping 3, and the connection part 2 is provided in each of the 1st piping 3 branched into plurality, The several fountain pen according to the number of branches is simultaneously provided. It becomes possible to wash.
In addition, by providing a flow path switching valve at the branch portion of the first pipe 3, only the circulation of the cleaning liquid 7 to the connecting portion 3 to which the fountain pen that has been cleaned is connected is stopped, and another fountain pen is connected. Without interrupting the circulation of the cleaning liquid 7 to the unit 2 and the cleaning of other fountain pens, the fountain pen can be removed after the cleaning and the fountain pen to be cleaned next can be connected.
In this case, the capacity of the pump is better.

  The present invention has a simple structure that can be used for cleaning and drying the inside and outside of a writing instrument in a writing instrument such as a fountain pen or drafting pen connected to an ink cartridge or a converter. Therefore, the device itself can be made compact and used widely from the store to the home.

1 ... The writing instrument cleaning apparatus according to the first embodiment,
2 ... connecting part, 3 ... first piping, 4 ... pump, 41 ... discharge port, 42 ... suction port,
5 ... Second piping, 6 ... Storage tank, 7 ... Cleaning liquid, 8 ... Cleaning tank, 81 ... Discharge hole,
9 ... Air inlet valve, 91 ... Cleaning fluid inlet, 92 ... Outlet, 93 ... Air inlet,
10 ... Cover 11 ... Writing instrument cleaning device of the second embodiment,
21 ... connecting part,
100 ... front part of fountain pen, 101 ... neck, 102 ... nib,
103 ... Pen core, 103a ... Ink groove, 103b ... Air groove

Claims (4)

A writing instrument cleaning method in which a writing instrument is connected to a cleaning liquid circulation path and the inside of the writing instrument is cleaned with a cleaning liquid circulated through the cleaning liquid circulation path by a circulation means. A writing instrument cleaning apparatus comprising a connecting portion for connecting a writing instrument, a circulation means, a cleaning liquid circulation path, and a storage tank. The writing instrument washing | cleaning apparatus of Claim 2 which provided the washing tank between the said connection part and the said storage tank. The writing instrument cleaning apparatus according to claim 2 or 3, wherein a discharge hole is provided in the cleaning tank, and an air inflow valve is provided between the circulation means and the storage tank.

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