Fountain pen cleaning device with ink suction device

Abstract

To obtain a fountain pen cleaning device with an ink suction device which is lightweight and easy to carry.SOLUTION: A fountain pen cleaning device includes a water intake tank 20 and water drain tank 30, in which the water intake tank 20 and the water drain tank 30 are separated by a partition wall 10c, and a holder 40 for holding a nib 170 side of a fountain pen 100 is placed on an upper part of the partition wall 10c, the holder 40 including: a fixing portion 40b for fixing a barrel 110 of the fountain pen 100; an intermediate tank 40c into which the nib 170 of the fountain pen 100 is inserted; a water intake passage 40d extending from the intermediate tank 40c toward the water intake tank 20; and a drainage passage 40e extending from the intermediate tank 40c toward the drainage tank 30, the water intake passage 40d including a check valve 40f on the intake side to prevent a backflow from the intermediate tank 40c to the intake tank 20, and the drainage passage 40e including a drainage-side check valve 40g that prevents a backflow from the drainage tank 30 toward the intermediate tank 40c.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present invention relates to a cleaning device for cleaning the inside of a fountain pen. [Background technology]

[0002] Conventionally, when changing the ink color of a fountain pen equipped with an ink aspirator, it is necessary to clean the nib, the pen core, and the ink tank of the ink aspirator in advance to prevent the ink colors before and after the change from mixing.

[0003] Patent Document 1 (JP 2019-034426 A) proposes a cleaning device using a pump. In this cleaning device, the pen tip and the pen core can be cleaned with cleaning liquid discharged from the device. This device can clean the ink grooves and air grooves of the pen tip and the pen core reliably and in a short time, but since the pump is electric, it requires a power source and the device itself is heavy, which makes it difficult to carry. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-034426 A Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a cleaning device for a fountain pen with an ink suction device that is lightweight and easy to carry. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention provides the following means.

[0007] [First aspect of the present invention] A cleaning device for a fountain pen with an ink suction device, comprising: The cleaning device comprises: A water intake tank and a water discharge tank are provided. The water intake tank and the water discharge tank are separated by a partition wall, a holder for holding the nib side of the fountain pen is placed on the upper portion of the partition; the holder has a fixing portion for fixing a barrel of the fountain pen, an intermediate tank into which the nib of the fountain pen is inserted, a water intake passage extending from the intermediate tank toward the water intake tank, and a drainage passage extending from the intermediate tank toward the drainage tank, the intake passage has an intake-side check valve for preventing a backflow from the intermediate tank toward the intake tank, A cleaning device for a fountain pen with an ink suction device, wherein the drainage passage has a drainage side check valve that prevents backflow from the drainage tank toward the intermediate tank.

[0008] There is no limitation on the shapes of the suction tank and the drain tank in the cleaning device, and they may be set appropriately. For example, the suction tank and the drainage tank can be formed to have a semicircular shape in a plan view and arranged to face each other to form a circular shape. In this case, a circular holder can be arranged at the center, which is the boundary between the suction tank and the drainage tank, to obtain a compact washing device with excellent design.

[0009] The water intake tank, drainage tank, and holder can be made of a material that is resistant to liquids such as water, ink, and cleaning fluid, such as resin, metal, or glass. For example, they can be made of resin such as ABS resin, AS resin, polycarbonate resin, polyethylene resin, polyethylene terephthalate resin, acrylic resin, polyacetal resin, polypropylene resin, and polystyrene resin, and by selecting a transparent material, the cleaning fluid flowing inside can be visually observed. When the water intake tank and drainage tank are made of metal, they are preferably made of stainless steel, which has high corrosion resistance to cleaning fluid and ink.

[0010] The volume of the water suction tank should be set to be larger than the volume of cleaning fluid that can clean the nib and core of the fountain pen and the ink tank of the ink absorber, and the volume of the drain tank should be larger than the volume of cleaning fluid stored in the water suction tank. Specifically, since the volume of the ink tank of a fountain pen with an ink absorber is at most 2 ml, a volume of the water suction tank that can store 10 times that amount, 20 ml of cleaning fluid, is sufficient for cleaning. At the start of cleaning, cleaning fluid is used to expel air from the intermediate tank, but storing 20 ml of cleaning fluid in the water suction tank is sufficient from the start of cleaning to the end of cleaning. The cleaning liquid stored in the water suction tank can be selected appropriately from water, organic solvents, surfactants, etc., taking into consideration the material of the fountain pen to be cleaned and the components of the ink.

[0011] The suction and drainage channels may be formed so that the suction and discharge forces of the ink aspirator act as pressure on the air and water in the suction and drainage channels. Specifically, taking into consideration that the suction and discharge forces of the ink aspirator are in the range of 0.01 MPa to 0.03 MPa, the cross-sectional areas and lengths of the suction and drainage channels may be appropriately set so that pressure is applied to the air and water in the suction and drainage channels. The suction passage is preferably located at the end thereof near the inner bottom surface of the suction tank so that a large amount of the cleaning liquid in the suction tank can be used. The drainage passage is preferably connected to the intermediate tank at the upper portion of the intermediate tank so that the air in the intermediate tank can be discharged at the start of cleaning and the cleaning liquid can be easily accumulated below the intermediate tank.

[0012] The intermediate tank provided in the holder must be deep enough to immerse the nib and pen core of the fountain pen. In addition, the volume of the intermediate tank is preferably small in order to improve the efficiency of replacing the cleaning liquid in the intermediate tank, and if the suction and discharge volume of the ink suction device is V ml, the volume of the intermediate tank should be set to V x 0.5 ml to V x 1 ml.

[0013] The suction side check valve of the suction passage and the discharge side check valve of the discharge passage can use a valve structure that prevents backflow of fluid, such as a ball check valve, lift check valve, or swing check valve. Furthermore, by using a valve structure in which the flow path is blocked by the valve body's own weight without using a resilient body such as a coil spring or a torsion coil spring, the operation of the valve structure can be made smooth by taking into account the relationship between the suction force and discharge force of the ink suction device and the mass of the valve body.

[0014] [Aspect 2 of the present invention] The intake channel and the drainage channel extend in the vertical direction, a suction side space portion is provided in the suction passage, and a suction side valve body is disposed in the suction side space portion to serve as the suction side check valve; A drainage side space is provided in the drainage channel, and a drainage side valve body is disposed in the drainage side space to serve as the drainage side check valve; By operating the ink sucker, the suction force of the ink sucker is used to pull the water suction side valve body upward to open the water suction side space, and pull the drain side valve body downward to close the drain side space, A cleaning device for a fountain pen with an ink absorber as described in aspect 1, in which, by operating the ink absorber to discharge, the discharge force of the ink absorber pulls the suction side valve body downward to close the suction side space, and pulls the discharge side valve body upward to open the discharge side space.

[0015] The masses of the suction side valve body and the drain side valve body may be set appropriately in consideration of the suction and discharge forces of the ink suction device. There are no limitations on the shapes of the suction side valve body and the drain side valve body and they may be set appropriately, but forming them into a spherical shape in particular allows smooth up and down movement inside the suction side space and the drain side space. It is essential that the bottom surfaces of the suction side space and the drain side space are shaped so that the suction side valve body and the drain side valve body come into contact and close the space.

[0016] [Embodiment 3 of the present invention] A cleaning device for a fountain pen with an ink absorber as described in embodiment 1 or embodiment 2, wherein a female screw portion is formed in the fixing portion of the holder, and the female screw of the holder is screwed into a male screw portion formed on the barrel of the fountain pen to become one body.

[0017] By placing an O-ring made of rubber or elastomer on the bottom surface of the fixed part of the holder and tightly sealing the front end of the barrel, it is possible to prevent the air inside the intermediate tank and cleaning liquid from leaking out, improving the efficiency of replacement of the cleaning liquid by the suction force and discharge force of the ink absorber, and increasing cleaning efficiency.

[0018] [Embodiment 4 of the present invention] The water intake tank and the water discharge tank can be separated, The water intake tank has a water intake tank side partition, and the water drain tank has a water drain tank side partition, The holder is placed on an upper portion of the water suction tank side partition wall, 3. A cleaning device for a fountain pen with an ink absorber according to claim 1 or 2, wherein the water intake tank side partition and the drain tank side partition are adjacent to each other to connect the water intake tank and the drain tank.

[0019] The suction tank and the drainage tank are structured so that the cleaning liquid can be stored in them even when they are separated. The drainage tank may be structured so that the stored cleaning liquid can be removed by turning the tank upside down when separated, or by removing a drain plug provided at the bottom when separated, for example. By separating the suction tank and the drain tank, it becomes easier to remove the cleaning fluid from the drain tank, and it becomes easier to clean the drain tank that has become dirty with cleaning fluid mixed with ink.

[0020] [Embodiment 5 of the present invention] The water intake tank has a leg portion at a lower portion thereof protruding toward the drainage tank, and the drainage tank has a receiving portion at a lower portion thereof to which the leg portion is engaged, A cleaning device for a fountain pen with an ink suction device as described in aspect 4, wherein the receiving part is placed above the foot part to connect the water intake tank and the drain tank.

[0021] The legs provided at the bottom of the suction tank may be formed in a plate or rod shape so that they can fit under the drainage tank. The receiving part provided at the bottom of the drainage tank may be formed in a shape that allows the legs of the suction tank to fit loosely. In particular, by forming the legs of the suction tank into plate shapes extending from the underside of the suction tank toward the drainage tank, and forming the receiving part of the drainage tank into a concave shape opening downward, it becomes possible to connect the suction tank and the drainage tank in the correct position simply by sliding the legs of the suction tank into the recess of the drainage tank, thereby improving operability.

[0022] [Aspect 6 of the present invention] A cleaning device for a fountain pen with an ink absorber according to claim 5, wherein the water suction tank side partition of the water suction tank and the drain tank side partition of the drain tank are connected by the attractive force of a magnet.

[0023] The magnetic attraction keeps the suction tank and the drainage tank connected in the correct position, so that even if the cleaning device receives an impact during cleaning, the relative positions of the suction tank and the drainage tank are unlikely to shift, and the cleaning liquid discharged from the drainage channel of the holder can be stored in the drainage tank. In addition, by setting the magnetic attraction force to be strong, the cleaning device can be lifted and moved without the intake tank and the drainage tank becoming separated, whether the intake tank side alone or the drainage tank side alone is held when the device is moved. To connect the suction tank side partition and the drain tank side partition by the magnetic attraction, the magnets can be connected to each other or to a combination of a magnet and a ferromagnetic material such as iron. Furthermore, by forming opposing grooves in the suction tank side partition and the drain tank side partition, and fixing the magnets and ferromagnetic materials to the grooves so that their surfaces do not protrude from the grooves, it is possible to prevent contact noise between hard magnets or between a magnet and a ferromagnetic material, and also to prevent the magnets from cracking.

[0024] [Seventh aspect of the present invention] The water intake tank has a leg portion at a lower portion thereof protruding toward the drainage tank, and the drainage tank has a receiving portion at a lower portion thereof to which the leg portion is engaged, The suction tank has a step portion at an upper portion of the suction tank side partition wall that abuts against an upper portion of the drainage tank side partition wall, A cleaning device for a fountain pen with an ink absorber as described in aspect 5, wherein the water intake tank side partition and the drain tank side partition are adjacent to each other, the leg abuts the receiving portion, the step abuts against the upper part of the drain tank side partition, and the drain tank is held by the leg and step of the water intake tank.

[0025] Because the drainage tank is held by the legs and steps of the suction tank, the cleaning device can be moved without separation between the suction tank and the drainage tank, whether the cleaning device is moved by holding only the suction tank or only the drainage tank. In this case, by combining the structure of the sixth aspect, the connection between the suction tank and the drainage tank is further prevented from becoming misaligned. Effect of the Invention

[0026] According to the cleaning device for a fountain pen with an ink absorber of the above-mentioned aspect of the present invention, the ink grooves and air grooves of the pen tip and pen core can be cleaned reliably and in a short time, and since no power source is required, the device itself is lightweight, making it possible to obtain a cleaning device that is easy to carry. [Brief description of the drawings]

[0027] [Figure 1] FIG. 1 is a cross-sectional view (longitudinal cross-sectional view) of a cleaning device according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is a cross-sectional view (transverse cross-sectional view) taken along line AA in FIG. [Diagram 3] FIG. 3 is a cross-sectional view (transverse cross-sectional view) taken along line BB in FIG. [Figure 4] FIG. 4 is a cross-sectional view (transverse cross-sectional view) taken along line CC in FIG. [Diagram 5] FIG. 5 is a diagram of a holder that fixes the barrel of a fountain pen, with FIG. 5A being a side view, FIG. 5B being a front view, FIG. 5C being a rear view, FIG. 5D being a plan view, and FIG. 5E being a bottom view. [Figure 6] FIG. 6 is a cross-sectional view (longitudinal cross-sectional view) of a fountain pen with an ink absorber. [Figure 7]FIG. 7 is a cross-sectional view (longitudinal cross-sectional view) showing a state in which a fountain pen with an ink suction device is attached to the cleaning device. [Figure 8] FIG. 8 is a cross-sectional view (longitudinal cross-sectional view) showing a discharge step in which the cleaning liquid is discharged into the drain tank when the fountain pen is cleaned with the cleaning device. [Figure 9] FIG. 9 is a cross-sectional view (longitudinal cross-sectional view) showing a suction step of sucking cleaning liquid from a water suction tank when cleaning a fountain pen with the cleaning device. [Figure 10] FIG. 10 is a cross-sectional view (longitudinal cross-sectional view) of a cleaning device according to a second embodiment of the present invention. [Figure 11] FIG. 11 is a cross-sectional view (transverse cross-sectional view) taken along line DD in FIG. [Figure 12] FIG. 12 is a cross-sectional view (transverse cross-sectional view) taken along line EE in FIG. [Figure 13] FIG. 13 is a cross-sectional view (transverse cross-sectional view) taken along line FF in FIG. [Figure 14] FIG. 14 is a cross-sectional view (longitudinal cross-sectional view) showing the suction tank and the discharge tank separated from each other. [Figure 15] FIG. 15 is a plan view (longitudinal cross-sectional view) showing the state in which the suction tank and the discharge tank are separated. [Figure 16] FIG. 16 is a bottom view (longitudinal cross-sectional view) of the water intake tank and the water discharge tank separated from each other. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] First Embodiment A cleaning device for a fountain pen with an ink sucker according to a first embodiment of the present invention will be described with reference to FIGS. The present invention is not limited to the embodiments described below, but is limited only by the claims.

[0029] Fig. 1 is a cross-sectional view (longitudinal cross-sectional view) of the cleaning device of the first embodiment. Fig. 2 is a cross-sectional view (horizontal cross-sectional view) along line AA in Fig. 1. Fig. 3 is a cross-sectional view (horizontal cross-sectional view) along line BB in Fig. 1. Fig. 4 is a cross-sectional view (horizontal cross-sectional view) along line CC in Fig. 1. Fig. 5 is a diagram of a holder that fixes a barrel of a fountain pen, with Fig. 5A being a side view, Fig. 5B being a front view, Fig. 5C being a rear view, Fig. 5D being a plan view, and Fig. 5E being a bottom view. As shown in Figs. 1 to 4, the cleaning device 10 is generally cylindrical. The cleaning device 10 has a cylindrical side wall 10a and an inner bottom surface 10b that closes the lower part of the side wall 10, and is partitioned into an intake tank 20 and a drain tank 30 by a partition wall 10c that suspends the diameter direction of the side wall 10a. A support part 10d is provided in the center of the partition wall 10c. The support part 10d has a circular holding part 10e that opens upward. A semicircular thick part 10f is formed in the lower inside of the holding part 10e on the drain tank 30 side, and a slit 10g is provided in the lower part of the holding part 10e on the intake tank 20 side into which the cleaning liquid S in the intake tank 20 enters.

[0030] A holder 40 having a semicircular protrusion 40a facing the semicircular thick portion 10f is placed above the support portion 10d, forming the cleaning device 10. The holder 40 has a fixing portion 40b for fixing the barrel of the fountain pen, an intermediate tank 40c located below the fixing portion 40b and through which the nib of the fountain pen is inserted, a water intake passage 40d having a circular cross section that extends from the intermediate tank 40c toward the water intake tank 20, and a drain passage 40e having a circular cross section that extends from the intermediate tank 40c toward the drain tank 20. The intake passage 40d has an intake side check valve 40f that prevents backflow from the intermediate tank 40c toward the intake tank 20, and the drainage passage 40e has a drainage side check valve 40g that prevents backflow from the drainage tank 30 toward the intermediate tank 40c.

[0031] The suction side check valve 40f is located in the middle of the suction passage 40d and is composed of a suction side space portion 40h with a circular cross-section and a larger diameter than the suction passage 40d, and a spherical suction side valve body 40i disposed inside the suction side space portion 40h. The drainage side check valve 40g is located in the middle of the drainage channel 40e and is composed of a drainage side space portion 40j with a circular cross-section that is larger in diameter than the drainage channel 40e, and a spherical drainage side valve body 40k arranged inside the drainage side space portion 40j. The bottoms of the suction side space 40h and the drain side space 40j are formed into a truncated cone shape that narrows downward, and the spherical suction side valve body 40i and the drain side valve body 40k fit tightly into the bottoms of the suction side space 40h and the drain side space 40j, making it easy to block the flow of air and water.

[0032] 6 is a cross-sectional view (longitudinal cross-sectional view) of a fountain pen with an ink sucker. The fountain pen 100 is provided with a tail cap 120 that is rotatable around the axis at the rear of the barrel 110. The fountain pen 100 has a structure in which, by rotating the tail cap 120, a slider 150 having a valve member 140 at its front that is in close contact with the inner surface of an ink tank 130 formed in the barrel 110 is moved up and down in the direction of arrow Y, and the valve member 140 rises to generate negative pressure inside the ink tank 130, and ink is sucked into the ink tank 130 via the pen core 160. In this embodiment, the ink suction device P is composed of the tail plug 120, the ink tank 130, the valve member 140, and the slider 150.

[0033] Fig. 7 is a cross-sectional view (longitudinal cross-sectional view) showing the state in which the fountain pen with ink suction device is attached to the cleaning device. As shown in Fig. 7, the fountain pen 100 can be integrated with the holder 40 by screwing the male screw portion 111 formed on the barrel into the female screw portion 41 formed on the holder 40. In this embodiment, an elastomer O-ring 42 is fixed above the intermediate tank 40c of the holder 40, and when the male screw portion 111 and the female screw portion 41 are screwed together, the tip of the neck portion 112 of the fountain pen 100 is tightly attached to the O-ring 42. This prevents air and cleaning liquid from leaking out of the intermediate tank 40c.

[0034] FIG. 8 is a cross-sectional view (longitudinal cross-sectional view) showing a discharging process for discharging the cleaning fluid when cleaning a fountain pen with the cleaning device. As the valve member 140 of the fountain pen 100 descends within the ink tank 130, pressure is applied to the inside of the intermediate tank 40c of the holder 40, and the suction side check valve 40f provided in the suction passage 40d prevents air or cleaning liquid inside the intermediate tank 40c from moving in the direction of arrow Y1 toward the suction tank 20 by the spherical suction side valve body 40i abutting the bottom of the suction side space portion 40h. In addition, the drainage side check valve 40g provided in the drainage channel 40e can discharge air and cleaning liquid inside the intermediate tank 40c in the direction of arrow Y2 toward the drainage tank 30 through the gap between the drainage side valve body 40k and the drainage side space portion 40j by causing the spherical drainage side valve body 40k to float inside the drainage side space portion 40j.

[0035] FIG. 9 is a cross-sectional view (longitudinal cross-sectional view) showing a suction process for sucking cleaning fluid when cleaning a fountain pen with the cleaning device. As the valve member 140 of the fountain pen 100 rises within the ink tank 130, negative pressure is created inside the intermediate tank 40c of the holder 40, and the suction side check valve 40f provided in the suction passage 40d is able to suck the cleaning solution S from the suction tank 20 in the direction of arrow Y3 toward the intermediate tank 40c through the gap between the spherical suction side valve body 40i and the suction side space portion 40h as the spherical suction side valve body 40i rises inside the suction side space portion 40h. In addition, the suction side check valve 40f provided in the drainage channel 40e can prevent outside air from moving in the direction of arrow Y4 toward the inside of the intermediate tank 40c by the spherical drainage side valve body 40k abutting the bottom of the drainage side space portion 40j.

[0036] Therefore, in the first embodiment, the cleaning device 10 rotates the tail cap 120 of the fountain pen 100 to alternate between the state shown in Figure 8 and the state shown in Figure 9, causing the cleaning liquid S in the water absorption tank 20 to pass through the inside of the ink tank 130 of the fountain pen 100 and be discharged into the drain tank 30, and in this process, the ink tank 130, the pen core 160, and the pen tip 170 are cleaned.

[0037] When placing the holder 40 on the support portion 10d, the fountain pen 100 is screwed onto the holder 40, and then the holder 40 is placed on the support portion 10d, which makes it easier to carry out pre-cleaning work. In addition, by removing the fountain pen 100 from the support 10d while it is screwed onto the holder 40, it becomes easier to discard the cleaning water S that has accumulated in the suction tank 20 and the drain tank 30. When placing the holder 40 on the support portion 10d, the holder 40 can be placed only in a state where the flat surface of the semicircular protrusion 40a of the holder 40 and the flat surface of the semicircular thick portion 10f of the support 10d are in contact with each other, so the direction in which the holder 40 is placed is always constant. Furthermore, when the fountain pen 100 is screwed into the holder 40 with the holder 40 placed on the support portion 10d, the flat surface of the semicircular protrusion 40a of the holder 40 and the flat surface of the semicircular thick portion 10f of the support 10d are in contact with each other, so the fountain pen 100 can be easily screwed into the holder 40.

[0038] In the first embodiment, the suction passage 40d and the drainage passage 40e, which have a circular cross-section, have an inner diameter of 2 mm, and the suction side check valve 40f has an inner diameter of 4 mm in the suction side space portion 40h, which has a circular cross-section, and a vertical height of 6 mm. Further, the drainage side check valve 40g is formed so that the inner diameter dimension of the drainage side space portion 40j having a circular cross section is 4 mm, and the height in the vertical direction is 6 mm. The suction side valve body 40i and the drain side valve body 40k disposed inside the suction side space portion 40h and the drain side space portion 40j are stainless steel balls having a diameter of 3 mm and a mass of 0.1 g.

[0039] Due to the pressure generated when the valve member 140 descends within the ink tank 130, the drain side valve body 40k rises 0.5 mm to 1.0 mm within the drain side space portion 40j, creating a gap between the drain side valve body 40k and the drain side space portion 40j, connecting the intermediate tank 40c and the drain tank 30, and the cleaning fluid S that has cleaned the ink tank 130, the pen core 160, and the pen tip 170 is discharged from the intermediate tank 40c to the drain tank 30. Due to the negative pressure generated when the valve member 140 rises within the ink tank 130, the suction side valve body 40i rises 0.5 mm to 1.0 mm within the suction side space portion 40h, creating a gap between the suction side valve body 40i and the suction side space portion 40h, connecting the suction tank 20 and the intermediate tank 40c, and the cleaning liquid S is absorbed from the suction tank 20 into the intermediate tank 40c. Therefore, by moving the valve member 140 of the fountain pen 100 up and down, the cleaning liquid S moves from the water intake tank 20 through the intermediate tank 40c and the ink tank 130 to the drain tank 30, thereby cleaning the ink tank 130, the pen core 160, and the pen tip 170. In addition, the inner bottom surface 10b on the water intake tank 20 side is inclined downward toward the support portion 10d side, so that even if the cleaning liquid S in the water intake tank 20 decreases, the cleaning liquid S passes through the slits 10g, reaches the lower end of the water intake channel 40d of the holder 40, and can be used for cleaning. The suction and discharge forces of the ink suction device P in the fountain pen 100 are 0.03 MPa.

[0040] In the first embodiment, the ink tank 130 has a volume of 1.2 ml, the water suction tank 20 has a volume capable of storing 20 ml of cleaning liquid, and the drain tank 30 has a volume capable of storing 20 ml of cleaning liquid after cleaning. Therefore, by initially storing 20 ml of cleaning liquid S in the water suction tank 20, the ink tank 130, the pen core 160, and the pen tip 170 can be efficiently cleaned without additionally refilling the water suction tank 20 with cleaning liquid or removing the cleaning liquid accumulated in the drain tank 30 after cleaning. Furthermore, in the first embodiment, since the drainage channel 40e is connected to a high position on the intermediate tank 40c, when the valve member 140 of the fountain pen 100 is moved up and down while there is no cleaning fluid in the intermediate tank 40c, the cleaning fluid fills the lower part of the intermediate tank 40c, and the air above the intermediate tank 40c is efficiently discharged through the drainage channel 40e. Once the intermediate tank 40c is filled with cleaning fluid, the nib 170, pen core 160, and ink tank 130 can be immersed in the cleaning fluid in that order and cleaned.

[0041] In addition, a fountain pen with an ink suction device that can be cleaned with the cleaning device of the first embodiment can be any pen with a structure in which the cleaning liquid in the ink tank is sucked in and expelled by the valve member moving up and down. Unlike the fountain pen 100 described above, even fountain pens with a structure in which the valve member moves up and down, for example by moving the tail cap up and down, can be cleaned in the same way.

[0042] Second Embodiment A cleaning device for a fountain pen with an ink sucker according to the second embodiment will be described with reference to Figs. The holder of the second embodiment has the same configuration as the holder described in the first embodiment, and therefore the description thereof will be omitted. Also, with regard to other configurations in the drawings of the second embodiment, the same reference numerals as those in the drawings used in the description of the first embodiment are used to denote the same configurations, and therefore the description thereof will be omitted.

[0043] Fig. 10 is a cross-sectional view (longitudinal cross-sectional view) of the cleaning device of the second embodiment. Fig. 11 is a cross-sectional view (horizontal cross-sectional view) taken along line DD in Fig. 10. Fig. 12 is a cross-sectional view (horizontal cross-sectional view) taken along line EE in Fig. 10. Fig. 13 is a cross-sectional view (horizontal cross-sectional view) taken along line FF in Fig. 10. Fig. 14 is a cross-sectional view (longitudinal cross-sectional view) of the suction tank and the drainage tank separated. Fig. 15 is a plan view of the suction tank and the drainage tank separated. Fig. 16 is a bottom view of the suction tank and the drainage tank separated. As shown in Figs. 10 to 13, the cleaning device 210 is generally cylindrical. The cleaning device 210 has a suction tank 220 and a drainage tank 230 that can be separated. The suction tank 220 and the drainage tank 230 have semicircular suction tank side wall 220a and drainage tank side wall 230a on the outer periphery, and have a suction tank side partition 220c and a drainage tank side partition 230c at the center line of the circle, and the suction tank side partition 220c and the drainage tank side partition 230c are adjacent to each other to connect the suction tank 220 and the drainage tank 230. The suction tank 220 has an inner bottom surface 220b that closes the lower part surrounded by the suction tank side wall 220a and the suction tank side partition 220c. The drainage tank 230 has an inner bottom surface 230b that closes the lower portion and is surrounded by a drainage tank side wall 230a and a drainage tank side partition wall 230c. A support portion 10d is provided at the center of the water intake tank side partition 220c. The support portion 10d has a circular holder 10e that is open at the top. A semicircular thick portion 10f is formed at the lower inside of the holder 10e on the drain tank 130 side, and a slit 10g is provided at the lower part of the holder 10e on the water intake tank 20 side into which the cleaning solution S in the water intake tank 20 enters. A holder 40 having a semicircular protruding portion 40a facing the semicircular thick portion 10f is placed above the support portion 10d, thereby forming a cleaning device 210. The drain tank side partition 230c has a semicircular recess 230cc at its center, into which the circular holding portion 10e and the semicircular thick portion 10f of the water suction tank 220 engage.

[0044] In the second embodiment, a magnet M1 is fixed to each of two grooves 221 provided symmetrically on the water intake tank side partition 220c with the retaining portion 10e in between, and a magnet M2 is fixed to each of two grooves 231 provided symmetrically on the water discharge tank side partition 230c with the recess 223cc in between, so that the water intake tank side partition 220c and the water discharge tank side partition 230c are connected by the attractive force between the opposing magnets M1 and M2. This makes it possible to hold the water intake tank 220 and the water discharge tank 230 in a connected state at the correct position. Furthermore, since magnet M1 does not protrude from the surface of the suction tank side partition 220c, and magnet M2 does not protrude from the surface of the drainage tank side partition 230c, magnets M1 and M2 do not come into contact with each other, preventing the contact noise between hard magnets and preventing cracks from occurring even in ferrite magnets and neodymium magnets, which are easily cracked when impacted.

[0045] In the second embodiment, the suction tank 220 has plate-shaped legs 222 at its lower part that protrude towards the drainage tank 230 side, the drainage tank 230 has a recessed receiving part 232 at its lower part, and the legs 222 are engaged with the receiving part 232. Furthermore, in the second embodiment, the suction tank 220 has a step 223 at an upper part of the suction tank-side partition 220c that abuts against an upper part of the drainage tank-side partition 230c, and with the suction tank-side partition 220c and the drainage tank-side partition 230c adjacent to each other, the legs 222 abut against the receiving part 232 and the step 223 abuts against an upper part of the recess 230cc of the drainage tank-side partition 230c, so that the drainage tank 230 is held by the legs 222 and step 223 of the suction tank 220. Since the drainage tank 230 is held by the legs 222 and the step 223 of the suction tank 220, when the cleaning device 210 is lifted and moved, the connection between the suction tank 220 and the drainage tank 230 is unlikely to become displaced even if only the suction tank 220 side or only the drainage tank 230 side is held, and the device can be moved as a unit. Furthermore, in the second embodiment, the absorption tank side partition 220c and the drainage tank side partition 230c are connected by the attractive force between the magnet M1 of the absorption tank side partition 220c and the magnet M2 of the drainage tank side partition 230c, making the connected state of the absorption tank 220 and the drainage tank 230 even less likely to become misaligned. When the water suction tank 220 and the drainage tank 230 are connected in the cleaning apparatus of the second embodiment, they can be connected by sliding the plate-shaped legs 222 so as to be inserted into the concave receiving portion 232 while the water suction tank 220 and the drainage tank 230 are placed on a desk or the like. In particular, in the second embodiment, the legs 222 and the receiving portion 232 are both formed in a semicircular shape, which makes it easy to insert the legs 222 into the receiving portion 232.

[0046] The cleaning process of the fountain pen 100 in the cleaning device of the second embodiment is the same as that of the first embodiment, so a description thereof will be omitted. The cleaning device 210 of the second embodiment differs from the cleaning device 10 of the first embodiment in that after cleaning the fountain pen, the drain tank 230 is separated from the water suction tank 220 and the drain tank 230 is turned upside down, so that only the cleaning liquid contaminated with ink after cleaning can be removed from the drain tank 230. By separating it from the water suction tank 220, cleaning of the drain tank 220 becomes easier, and maintenance is improved. In addition, if cleaning liquid such as water remains in the water suction tank 220, it can be stored in the water suction tank 220 as it is, and the remaining cleaning liquid can be used at the next cleaning, so there is no waste and it is good for the environment. In addition, since the water suction tank 220 can be left on a desk or the like, the water suction tank 220 can be made large-capacity, and the frequency of refilling the cleaning liquid can be reduced. [Explanation of symbols]

[0047] 10... cleaning device, 10a... cylindrical side wall, 10b... inner bottom surface, 10c... partition wall, 20...water absorption tank, 30...drainage tank, 10d: holding portion, 10e: fixing portion, 10f: semicircular thick portion, 10g: slit, 40...retaining body, 40a...semicircular protrusion, 40b...fixing portion, 40c...intermediate tank, 40d...suction channel 40d, 40e...drain channel, 40f...suction side check valve, 40g...drain side check valve, 40h...suction side space portion, 40i...suction side valve body, 40k...drain side valve body, 41...female screw portion, 100... fountain pen, 110... barrel, 120... tail cap, 130... ink tank, 140... valve member, 150... slider, 160... pen core, 170... pen tip, P... ink inhaler, S... cleaning fluid, 210...Cleaning equipment, 220... Water absorption tank, 220a... Water absorption tank side wall, 220b... Inner bottom surface, 220c... Water absorption tank side bulkhead, 221... Groove, 222... Leg, 223... Step, 230...Drainage tank, 230a...Drainage tank side wall, 230b...Inner bottom surface, 230c...Drainage tank side partition wall, 230cc...Recess, 231...Groove portion, 232...Receiving portion, M1...magnet, M2...magnet.

Claims

1. A cleaning device for a fountain pen with an ink suction device, comprising: The cleaning device comprises: A water intake tank and a water discharge tank are provided. The water intake tank and the water discharge tank are separated by a partition wall, a holder for holding the nib side of the fountain pen is placed on the upper portion of the partition; the holder has a fixing portion for fixing a barrel of the fountain pen, an intermediate tank into which the nib of the fountain pen is inserted, a water intake passage extending from the intermediate tank toward the water intake tank, and a drainage passage extending from the intermediate tank toward the drainage tank, the intake passage has an intake-side check valve for preventing a backflow from the intermediate tank toward the intake tank, A cleaning device for a fountain pen with an ink suction device, wherein the drainage passage has a drainage side check valve that prevents backflow from the drainage tank toward the intermediate tank.

2. The intake channel and the drainage channel extend in the vertical direction, a suction side space portion is provided in the suction passage, and a suction side valve body is disposed in the suction side space portion to serve as the suction side check valve; A drainage side space is provided in the drainage channel, and a drainage side valve body is disposed in the drainage side space to serve as the drainage side check valve; By operating the ink sucker, the suction force of the ink sucker is used to pull the water suction side valve body upward to open the water suction side space, and pull the drain side valve body downward to close the drain side space, A cleaning device for a fountain pen with an ink absorber as described in claim 1, wherein by operating the ink absorber to discharge, the discharge force of the ink absorber pulls the suction side valve body downward to close the suction side space, and pulls the discharge side valve body upward to open the discharge side space.

3. A cleaning device for a fountain pen with an ink absorber as described in claim 1 or claim 2, wherein a female screw portion is formed in the fixing portion of the holder, and the female screw of the holder is screwed into a male screw portion formed on the barrel of the fountain pen to become one body.

4. The water intake tank and the water discharge tank can be separated, The water intake tank has a water intake tank side partition, and the water drain tank has a water drain tank side partition, The holder is placed on an upper portion of the water suction tank side partition wall, 3. A cleaning device for a fountain pen with an ink absorber according to claim 1, wherein the water suction tank side partition and the drain tank side partition are adjacent to each other so that the water suction tank and the drain tank are connected to each other.

5. The water intake tank has a leg portion at a lower portion thereof protruding toward the drainage tank, and the drainage tank has a receiving portion at a lower portion thereof to which the leg portion is engaged, 5. The cleaning device for a fountain pen with an ink suction device according to claim 4, wherein said receiving portion is placed above said foot portion to connect said water suction tank and said drain tank.

6. 6. A cleaning device for a fountain pen with an ink absorber according to claim 5, wherein the water suction tank side partition of the water suction tank and the drain tank side partition of the drain tank are connected by the attractive force of a magnet.

7. The water intake tank has a leg portion at a lower portion thereof protruding toward the drainage tank, and the drainage tank has a receiving portion at a lower portion thereof to which the leg portion is engaged, The suction tank has a step portion at an upper portion of the suction tank side partition wall that abuts against an upper portion of the drainage tank side partition wall, A cleaning device for a fountain pen with an ink absorber as described in claim 5, wherein when the water intake tank side partition and the drain tank side partition are adjacent to each other, the leg abuts against the receiving portion and the step abuts against the upper part of the drain tank side partition, and the drain tank is held by the leg and step of the water intake tank.

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