JP6124200B2 - Ink self-contained stamp - Google Patents

Description

The present invention relates to an ink self-contained stamp using a porous printed body having countless open cells.
In the present invention, “down” refers to the downward direction of gravity, and “up” refers to the upward direction of gravity.

A stamp using a porous printed body having an infinite number of open cells is widely used because it can be printed without attaching ink to the printed surface every time it is used.
Conventionally, this type of seal has a structure in which the ink stored in the ink occluding body naturally flows down (penetrates) into the porous printed body and permeates and replenishes ink on the printing surface. In order to perform the above, liquid ink was dropped on the printing surface or the ink occlusion body. When the liquid ink was dropped, there was a time difference in the penetration of the printing surface (recovery of the ink on the printing surface), and therefore there was a tendency to replenish the liquid ink excessively without knowing the appropriate amount of replenishing ink.
In order to solve this problem, Japanese Patent Application Laid-Open No. 2004-228867 discloses a stamp in which an ink cartridge is disposed on the back side of an ink impregnated body in a state where an ink supply hole of an ink cartridge containing ink is in contact with the ink impregnated body. Are known.
Further, Japanese Patent Application Laid-Open No. 2004-133867 discloses a stamp in which a tube for ink supply is inserted into a porous rubber.
Japanese Utility Model Publication No. 06-42200 Japanese Utility Model Publication No. 53-10315

The ink in the ink cartridge of Patent Document 1 is gradually supplied to the ink impregnated body through the ink supply hole, and finally filled with the ink up to the allowable amount of the ink impregnated body. In this state, if the internal pressure in the ink cartridge rises, such as a rapid temperature rise, ink is ejected from the printing surface and causes ink leakage.
Similarly, in Patent Document 2, the ink supplied from the tube to the typeface is finally filled with the ink up to the full capacity of the typeface. In this state, if the internal pressure in the ink cartridge rises, such as a rapid temperature rise, ink is ejected from the printing surface and causes ink leakage.

The ink self-supporting stamp of the first invention completed in order to solve the above-mentioned problems, the ink occlusion body is disposed on the upper surface side of the porous print body having countless open cells,
On the upper surface side of the ink occluding body is disposed an absorber that absorbs excess ink with a weaker capillary force than the ink occluding body,
An ink self-contained stamp in which an ink tank having an ink supply pipe having an open end is disposed on the upper surface side of the absorber,
The outer surface of the ink occlusion body and the absorber is covered with a wall member so that ink does not leak, but a part or all of the lower surface of the ink occlusion body is opened and an ink discharge port is provided. In addition, part or all of the outer surface of the absorber is provided with an air circulation port that is open and air replacement is performed .
And the tip of the ink supply pipe is connected to the ink occlusion body.
According to a second aspect of the invention, the wall member is a wall that blocks ink, and the lower surface of the wall is in contact with the upper surface of the porous printed body. It is a self-contained seal.
According to a third aspect of the present invention, the ink supply pipe is disposed on the upper surface side of the ink occlusion body, and the tip of the ink supply pipe is connected to the upper surface of the ink occlusion body. It is an ink self-contained stamp of any of the invention to the second invention.
According to a fourth aspect of the present invention, the ink supply pipe is disposed on the upper surface side of the ink storage body, and the tip of the ink supply pipe is connected to the inside of the ink storage body. It is an ink self-contained stamp of any of the invention to the second invention.
According to a fifth invention, from the first invention, the ink supply pipe is disposed on a side surface of the ink storage body, and a tip of the ink supply pipe is connected to a side surface of the ink storage body. It is an ink self-sufficiency stamp of any of the second invention.
According to a sixth aspect of the invention, the ink supply pipe is disposed on a side surface side of the ink storage body, and a tip of the ink supply pipe is connected to the inside of the ink storage body. It is an ink self-sufficiency type stamp in any one of 2nd invention.
A seventh invention is the ink self-contained stamp according to any one of the first to sixth inventions, wherein the ink supply pipe is single or plural.
The eighth invention provides an opening on the upper surface side of the ink tank, provides an opening end to a replenishing ink cartridge containing ink, and detachably fits the opening and the opening end, It is an ink self-contained stamp according to any one of the first to seventh inventions, which is sealed.
A ninth aspect of the invention is an ink self-contained stamp according to the eighth aspect of the invention, wherein a plug body that opens when the opening portion and the opening end portion are fitted is attached to the opening end portion. is there.
A tenth aspect of the invention is an ink self-contained stamp according to the ninth aspect of the invention, wherein a plug body that is closed when the opening and the opening end are detached is attached to the opening end.

In the first invention, an absorber having a weaker capillary force than the ink occluding body is arranged on the upper surface side of the ink occluding body, and the ink is preferentially positioned in the ink occluding body, so that the temperature rises rapidly. Even if the internal pressure in the ink tank rises, the ink moves to the absorber side and is not ejected from the printing surface side.
In the second invention, the wall member that covers the outer surface of the ink occluding body is a fiber body or porous body that has a weaker capillary force than the ink occluding body but allows air to circulate. Even if the internal pressure rises, the ink moves not only to the absorber side but also to the fibrous body or porous body side, and does not eject from the marking surface side.
In the third invention, since the wall member covering the outer surface of the ink occluding member is a wall member that blocks ink, even if the internal pressure in the ink tank rises as described above, the ink moves to the absorber side. However, it does not erupt from the marking side.
In the fourth aspect of the invention, the ink supply pipe is disposed on the upper surface side of the ink storage body, and the tip of the ink supply pipe is connected to the upper surface of the ink storage body, so that ink can be smoothly transferred into the ink storage body. Can be impregnated.
In the fifth aspect of the invention, the ink supply pipe is disposed on the upper surface side of the ink storage body, and the tip of the ink supply pipe is connected to the inside of the ink storage body, so that ink can be smoothly fed into the ink storage body. In addition to being impregnated, the connection between the tip of the ink supply pipe and the ink occlusion body can be made stronger.
In the sixth invention, since the ink supply pipe is disposed on the side surface of the ink occlusion body, and the tip of the ink supply pipe is connected to the side surface of the ink occlusion body, the ink is smoothly fed into the ink occlusion body. Can be impregnated.
In the seventh invention, the ink supply pipe is disposed on the side surface side of the ink occlusion body, and the tip of the ink supply pipe is connected to the inside of the ink occlusion body. In addition to being impregnated, the connection between the tip of the ink supply pipe and the ink occlusion body can be made stronger.
In the eighth invention, since the number of ink supply pipes can be single or plural, it is useful in practical use.
In the ninth invention, when the ink stored in the ink tank is exhausted and the ink is replenished, the ink can be replenished by replacing the replenishing ink cartridge fitted on the upper surface side of the ink tank. In addition, since it is not necessary to replace the connecting portion between the ink supply tube and the ink occlusion body every time ink is replenished, the connected portion is maintained in that state, and stable ink supply is possible without ink leakage. .
In the tenth invention, when the ink tank and the replenishment ink cartridge are fitted, the plug provided in the replenishment ink cartridge is opened, so that the ink does not leak from the replenishment ink cartridge when refilling the ink. The replenishment work can be easily performed.
As in the eleventh aspect of the invention, in the case of a valve device in which the valve opens and opens when the stopper is pressed against the stopper for opening, the old replenishing ink cartridge with the ink remaining is removed from the ink tank. However, since the opening end is closed by the action of the valve, ink leakage does not occur.

Next, a first embodiment of the present invention will be described in detail with reference to FIG.
The porous printed body 1 has an infinite number of open cells of a sponge body such as rubber or synthetic resin, and a surface 1a for printing characters or the like is provided on the surface thereof.

  The receiver 2 is made of a material that is not soaked in ink, such as stainless steel, and holds the porous printed body 1 on one end of the main body 9.

An ink occlusion body 3 is disposed on the upper surface side of the porous printing body 1.
The ink occlusion body 3 only needs to have a capillary gap. For example, a fiber bundle resin processed body, a fiber bundle heat fusion processed body, a felt processed body, a felt needle punch processed body, and a porous synthetic resin Examples thereof include porous materials such as foams, and synthetic resin extrusions having an ink guide path in the axial direction. The material can be a synthetic fiber resin such as acrylic fiber or polyester fiber.
Part or all of the lower surface of the ink occlusion body 3 is opened to form an ink discharge port 3a. The porous printing body 1 and the ink discharge port 3 a provided in the ink occlusion body 3 are in contact with each other. And the relationship of the capillary force between the porous printing body 1 and the ink occlusion body 3 is adjusted so that an appropriate amount of ink moves to the printing surface 1a.

On the upper surface of the ink occlusion body 3, an absorber 31 having a capillary force weaker than that of the ink occlusion body 3 is disposed. The absorbent body 31 only needs to have a capillary gap. For example, a fiber bundle resin processed body, a fiber bundle heat fusion processed body, a felt processed body, a felt needle punch processed body, and a porous synthetic resin Examples thereof include porous materials such as foams, and synthetic resin extrusions having an ink guide path in the axial direction. The material can be a synthetic fiber resin such as acrylic fiber or polyester fiber.
Here, the capillary force is a force for raising the capillary, and in the present invention, it is a force for the ink to move through the capillary gap. Therefore, since the absorber 31 has a capillary force weaker than that of the ink occlusion body 3, the ink is difficult to move to the absorber 31.
Further, a part or all of the outer surface of the absorber 31 is provided with an air circulation port 31a that opens and communicates with the atmosphere, and is configured to perform air replacement with the outside air.
Here, the ink occlusion body 3 and the absorber 31 can be formed integrally. A method of adjusting the amount of fibers when manufacturing the ink occlusion body 3 or a method of setting by partially reducing the volume of the ink occlusion body 3 when the fiber amount is the same can be considered. Here, the method of partially reducing the volume of the ink occlusion body 3 includes, for example, a method of forming a part of the outer peripheral surface of the ink occlusion body 3 by pressing and compressing it radially inward, or upward from the lower end. A method of pressing and compressing the head is conceivable.

The side surfaces of the ink occlusion body 3 and the absorber 31 are covered with wall members. The wall member is provided to prevent the ink impregnated in the ink occlusion body 3 from leaking from the side surface. In the present invention, as the wall member, a fibrous body, a porous body, a wall body that blocks ink, and the like can be adopted.
As the fiber body 32, a fiber body having a weaker capillary force than the ink occlusion body 3 is employed. The fibrous body 32 allows air to flow, and the lower surface is in contact with the upper surface of the porous printed body. Since the fibrous body 32 has a weaker capillary force than the ink occlusion body 3, the ink is difficult to move to the fibrous body 32.
The fiber body 32 only needs to have a capillary gap. For example, a fiber bundle resin processed body, a fiber bundle heat fusion processed body, a felt processed body, a felt needle punch processed body, and a porous bubble of a synthetic resin Examples thereof include a porous material such as a body, or a synthetic resin extruded body having an ink guide path in the axial direction. The material can be a synthetic fiber resin such as acrylic fiber or polyester fiber. The fibrous body 32 may be made of the same material as the absorbent body 31 or may be made of a different material.
Moreover, the structure provided with the outer skin which consists of synthetic resin films etc. in the outer peripheral surface of the said fiber body 32 may be sufficient.
A porous body may be used instead of the fiber body 32. Here, the porous body is a material in which continuous bubbles are contained in a material such as a thermoplastic resin, a thermosetting resin, rubber, glass, ceramics, or metal by a known method. Use weak ones.
Moreover, it is good also as the wall body 33 which interrupts | blocks ink as a wall member. Any material can be used as the material of the wall 33 as long as it blocks ink. For example, a resin such as plastic, a resin film, a metal, or the like can be used.

  The upper surface of the slide 4 is always pressed by the coiled spring 5 and the lower surface thereof is always below the printing surface 1a.

  The sheath 6 locks the spring 5 and fixes the sheath 6 to the main body 9 with a fixing ring 7 made of polyacetal resin or the like.

The gripping body 8 is detachably fitted to the sheath 6 and the fixing ring 7.
The main body 9 is made of a synthetic resin material having excellent ink resistance such as polyacetal resin, and the ink occlusion body 3 and the porous printing body 1 are fitted and held on the lower surface by a receiver 2.
For the purpose of protecting the printing surface 1a, a stamp cap 10 may be fitted on the lower surface of the sheath 6 so as to cover the printing surface 1a.

The ink tank 11 is a bottomed cylindrical body having an open top surface, and is provided with an ink supply tube 12 having a tip opened downward from the bottom surface of the bottom portion, and the ink supply tube 12 penetrates the bottom portion. The ink is accommodated in the cylindrical body 11a.
The ink supply tube 12 may be two or more, or may be one as in the eighth invention shown in FIGS. Here, first, a plurality of lines will be described.
The cross-sectional shape of the outer peripheral surface and inner peripheral surface of the ink supply tube 12 may be, for example, any of a circle, an ellipse, or a polygon such as a triangle or a quadrangle. Further, the tip of each of the ink supply pipes 12 may be opened downward in the vertical direction or may be opened outward in the radial direction. Examples of the tip shape of each ink supply tube 12 include an inclined cut surface, a vertical surface, a conical surface, and a convex curved surface.
As shown in FIG. 2, the side walls of the ink supply pipe 12 may be connected to each other. In this case, the inside of one cylindrical body is partitioned by a partition wall 12a extending in the vertical direction, and two ink supply pipes 12 are independently provided in parallel inside the cylindrical body.
As shown in FIG. 3, a configuration in which a small-diameter ink supply pipe 12 is arranged inside a large-diameter ink supply pipe 12 may be used. In this case, an annular flow passage is formed between the inner peripheral surface of the large-diameter ink supply tube 12 and the outer peripheral surface of the small-diameter ink supply tube 12, and the cross-sectional circle is formed inside the small-diameter ink supply tube 12. A shaped flow passage will be formed.

The upper end opening 11b of the ink tank 11 is sealed. As a method of sealing, a method of fitting with the ink tank cap 13 or a method of integrally molding so as to seal the opening 11b can be considered.
As a method of fitting with the ink tank cap 13, the ink tank cap 13 is fitted into the opening 11 b of the ink tank 11 in a sealed state. The method for fitting the ink tank 11 and the ink tank cap 13 may be screw fitting. The ink tank cap 13 is inserted into the upper end opening of the main body 9 from the lower end side in a state of being fitted to the ink tank 11. A flange may be provided on the outer peripheral surface of the ink tank cap 13 so as to be engaged with the upper end opening end surface of the main body 9.
Further, as a method of integrally molding the opening 11b so as to be sealed, a method of integrally molding the ink tank 11 and the ink tank cap 13 is conceivable. For example, after the ink supply tube 12 is molded by injection molding, the ink is supplied. A method of housing and heat-sealing the other end or a method of molding by blow molding can be employed.

As shown in FIG. 1, the stamp is assembled in the state in which the porous printing body 1 having the ink occlusion body 3 disposed on the upper surface is fitted and held in the receiver 2 as shown in FIG. The receiver 2 is fitted on the lower surface of 9. Then, the main body 9 is inserted from the upper surface side in the order of the slide 4, the spring 5, the sheath 6, and the fixing ring 7, and fixed to the main body 9 with the fixing ring 7. Next, the ink tank 11 is inserted from the upper end opening of the main body 9 and fitted into the main body 9.
At this time, the tip of the ink supply pipe 12 is connected to the ink occlusion body 3. The connection means that the ink supply pipe 12 and the ink storage body 3 are connected. Here, in order to connect and connect the ink supply pipe 12 and the ink occlusion body 3, joining, press-contact, adhesion, etc. can be considered.
Joining means joining two members, for example, inserting the ink supply pipe 12 into a connection hole for connection provided in advance in the ink occlusion body 3. At this time, the ink occlusion body 3 and the ink supply pipe 12 are joined by a frictional force between the inner peripheral surface of the connection hole for connection and the outer peripheral surface of the ink supply pipe.
The pressure contact means pressurization contact. For example, the ink supply tube 12 is forcibly inserted into the ink occlusion body 3. At this time, the ink occlusion body 3 and the ink supply pipe 12 are pressed against each other by the frictional force between the fiber bundle of the ink occlusion body and the outer peripheral surface of the ink supply pipe.
Adhesion is the joining of two surfaces by chemical force or the like using an adhesive as a medium. For example, an ink supply in which an adhesive is applied to the outer peripheral surface in a connection hole provided in advance in the ink occlusion body 3 For example, a pipe is inserted and the inner peripheral surface of the connection hole and the outer peripheral surface of the ink supply pipe are bonded by a chemical force. At this time, the end opening of the ink supply tube 12 should not be blocked by the adhesive.
The connection method of the first embodiment is a method in which a connection through hole is provided in advance on the upper surface of the absorber 31 and the ink supply pipe 12 is inserted therein. At that time, the ink supply pipe 12 is designed so that the tip of the ink supply pipe 12 is connected to the ink storage body 3. Then, the gripping body 8 is fitted to the sheath 6 and the fixing ring 7, and the stamp cap 10 is fitted to the lower end of the sheath 6.

  Here, as the ink of the present invention, water-based, oil-based, dye-based and pigment-based inks can be appropriately employed.

The first embodiment of the present invention has the above-described configuration, and the operation thereof will be described in detail next.
Each of the ink supply pipes 12 has a function of supplying ink in the ink tank 11 to the inside of the ink occlusion body 3 and a function of supplying outside air into the ink tank 11. When supplying the ink in the ink tank 11 to the ink occlusion body 3, when the printing surface 1 a is turned downward, the ink in the ink tank 11 passes through at least one ink supply pipe 12 due to gravity and passes through the ink occlusion body 3. To be supplied. At the same time, outside air is taken into the ink tank 11 through another ink supply pipe 12. Accordingly, the ink in the ink tank 11 is impregnated in the ink occlusion body 3 and reaches the front end opening of the other ink supply pipe 12 in which the ink impregnated in the ink occlusion body 3 has taken in the outside air. Continue to supply until.
When the ink impregnated in the ink occlusion body 3 reaches the front end opening of the ink supply pipe 12 that has taken in the outside air, the front end opening is closed and airtight, and the supply of the outside air into the ink tank 11 is stopped. Is done. Then, the ink supply from the ink tank 11 to the ink occlusion body 3 by the ink supply pipe 12 that has been supplying the ink is also stopped.
Thus, the outflow of ink from the ink tank 11 and the inflow of air into the ink tank 11 (that is, the replacement of ink and air) are stopped, and the ink tank is temporarily sealed.
In this state, when the marking is continuously performed, the ink consumed by the porous printing body 1 is supplied from the ink discharge port 3 a provided in the ink occlusion body 3. The ink supplied from the ink occlusion body 3 to the porous printing body 1 is supplied from the ink tank 11 through the ink supply pipe 12 and can be marked until all the ink in the ink tank 11 is consumed.

If the outside air temperature changes when the ink tank 11 is sealed, the pressure in the ink tank changes. When the outside air temperature rises from the time when the ink tank 11 is sealed, the air in the ink tank expands to increase the internal pressure, and the ink is discharged from the ink supply pipe 12. The discharged ink is absorbed by the absorber 31 provided with the air circulation port 31a and communicating with the atmosphere, or is absorbed or blocked by the wall member, so that it does not move to the printing body side. Here, the wall member that absorbs ink is the fiber body 32 or the porous body, and the wall member that blocks ink is the wall body.
In this state, when the outside air temperature decreases, the pressure in the ink tank decreases, and the ink discharged earlier is sucked back into the ink supply pipe 12.
On the other hand, when the outside air temperature decreases from the time when the ink tank is sealed, the air in the ink tank contracts, the internal pressure decreases, and the ink near the supply pipe opening is sucked from the ink supply pipe 12. When the outside air temperature rises in this state, the pressure in the ink tank rises, and the ink sucked earlier is discharged from the ink supply pipe 12.
When refilling ink, the gripping body 8 is first removed, the ink tank 11 fitted with the ink tank cap 13 is taken out, and replaced with a new ink tank 11.

Next, the 2nd Embodiment of this invention is described in detail based on FIGS. 1-3. Here, only differences from the above-described embodiment will be described.
In the present invention, a fibrous body 32 having a capillary force weaker than that of the ink occlusion body 3 is employed as the wall member. The fibrous body 32 allows air to flow, and the lower surface is in contact with the upper surface of the porous printed body. Since the fibrous body 32 has a weaker capillary force than the ink occlusion body 3, the ink is difficult to move to the fibrous body 32.
The fiber body 32 only needs to have a capillary gap. For example, a fiber bundle resin processed body, a fiber bundle heat fusion processed body, a felt processed body, a felt needle punch processed body, and a porous bubble of a synthetic resin Examples thereof include a porous material such as a body, or a synthetic resin extruded body having an ink guide path in the axial direction. The material can be a synthetic fiber resin such as acrylic fiber or polyester fiber. The fibrous body 32 may be made of the same material as the absorbent body 31 or may be made of a different material.
Moreover, the structure provided with the outer skin which consists of synthetic resin films etc. in the outer peripheral surface of the said fiber body 32 may be sufficient.
A porous body may be used instead of the fiber body 32. Here, the porous body is a material in which continuous bubbles are contained in a material such as a thermoplastic resin, a thermosetting resin, rubber, glass, ceramics, or metal by a known method. Use weak ones.

Moreover, the cross-sectional shape of the outer peripheral surface and the inner peripheral surface of the ink supply pipe 12 may be, for example, any of a circle, an ellipse, or a polygon such as a triangle or a quadrangle. Further, the tip of each of the ink supply pipes 12 may be opened downward in the vertical direction or may be opened outward in the radial direction. Examples of the tip shape of each ink supply tube 12 include an inclined cut surface, a vertical surface, a conical surface, and a convex curved surface.
As shown in FIG. 2, the side walls of the ink supply pipe 12 may be connected to each other. In this case, the inside of one cylindrical body is partitioned by a partition wall 12a extending in the vertical direction, and two ink supply pipes 12 are independently provided in parallel inside the cylindrical body.
As shown in FIG. 3, a configuration in which a small-diameter ink supply pipe 12 is arranged inside a large-diameter ink supply pipe 12 may be used. In this case, an annular flow passage is formed between the inner peripheral surface of the large-diameter ink supply tube 12 and the outer peripheral surface of the small-diameter ink supply tube 12, and the cross-sectional circle is formed inside the small-diameter ink supply tube 12. A shaped flow passage will be formed.

The second embodiment of the present invention is configured as described above, and the operation thereof will be described in detail next.
In the present embodiment, when the outside air temperature changes when the ink tank 11 is sealed, the pressure in the ink tank changes. When the outside air temperature rises from the time when the ink tank 11 is sealed, the air in the ink tank expands to increase the internal pressure, and the ink is discharged from the ink supply pipe 12. Since the discharged ink is absorbed by the absorber 31 or the fiber body 32 side provided with the air circulation port 31a and communicated with the atmosphere and does not move to the print body side, the ink is not ejected from the printing surface side. Absent. In this state, when the outside air temperature decreases, the pressure in the ink tank decreases, and the ink discharged earlier is sucked back into the ink supply pipe 12.
On the other hand, when the outside air temperature decreases from the time when the ink tank is sealed, the air in the ink tank contracts, the internal pressure decreases, and the ink near the supply pipe opening is sucked from the ink supply pipe 12. When the outside air temperature rises in this state, the pressure in the ink tank rises, and the ink sucked earlier is discharged from the ink supply pipe 12.

Next, a third embodiment of the present invention will be described in detail with reference to FIG. Here, only differences from the above-described embodiment will be described.
In the present embodiment, the wall member 33 that blocks the ink is used as the wall member that covers the side surfaces of the ink storage body 3 and the absorber 31. The lower surface of the wall 33 is in contact with the upper surface of the porous printed body. Any material can be used as the wall material as long as it blocks ink, and for example, a resin such as plastic, a resin film, a metal, or the like can be used. As the resin or metal, a cylindrical body having both ends opened can be adopted. Moreover, when employ | adopting a resin film, the structure which winds a resin film on the side surface of the said ink occlusion body 3 and the absorber 31 can be considered.

The third embodiment of the present invention has the above configuration, and the operation thereof will be described in detail next.
In the present embodiment, a wall body 33 is employed instead of the fiber body 32 of the second embodiment.
If the outside air temperature changes when the ink tank 11 is sealed, the pressure in the ink tank changes. When the outside air temperature rises from the time when the ink tank 11 is sealed, the air in the ink tank expands to increase the internal pressure, and the ink is discharged from the ink supply pipe 12. The discharged ink is absorbed by the absorber 31 side that is provided with the air circulation port 31a and communicates with the atmosphere because the wall 33 blocks the ink, and does not move to the print body side. Ink does not erupt. In this state, when the outside air temperature decreases, the pressure in the ink tank decreases, and the ink discharged earlier is sucked back into the ink supply pipe 12.
This embodiment is the same as the second embodiment except for this action.

Next, a fourth embodiment of the present invention will be described in detail with reference to FIGS. Here, only differences from the above-described embodiment will be described.
In the present embodiment, the ink supply pipe 12 is disposed on the upper surface side of the ink storage body 3, and the tip of the ink supply pipe 12 is connected to the upper surface of the ink storage body 3. As a method therefor, a method is conceivable in which a through hole for connection is provided in advance on the upper surface of the absorber 31 and the ink supply pipe 12 is inserted therein. At this time, the ink supply pipe 12 is designed so that the tip of the ink supply pipe 12 is connected to the upper surface of the ink storage body 3.

  The fourth embodiment of the present invention is configured as described above, and the first to third components are the same except that the tip of the ink supply tube 12 of the present embodiment is connected to the upper surface of the ink storage body 3. This is the same as the embodiment.

Next, a fifth embodiment of the present invention will be described in detail with reference to FIG. Here, only differences from the above-described embodiment will be described.
In the present embodiment, the ink supply pipe 12 is disposed on the upper surface side of the ink storage body 3, and the tip of the ink supply pipe 12 is connected to the inside of the ink storage body 3. As a method therefor, a method is conceivable in which a through hole for connection is provided in advance on the upper surface of the absorber 31 and the ink supply pipe 12 is inserted therein. Further, a connection hole for connection is provided in advance on the upper surface of the ink occlusion body 3, and the tip of the ink supply pipe 12 is inserted into the connection hole so as to be connected to the ink occlusion body 3.
In the present embodiment, in order to connect and connect the ink supply pipe 12 and the ink occlusion body 3, bonding, pressure welding, adhesion, or the like can be considered.
Joining means joining two members, for example, inserting the ink supply pipe 12 into a connection hole for connection provided in advance in the ink occlusion body 3. At this time, the ink occlusion body 3 and the ink supply pipe 12 are joined by a frictional force between the inner peripheral surface of the connection hole for connection and the outer peripheral surface of the ink supply pipe.
The pressure contact means pressurization contact. For example, the ink supply tube 12 is forcibly inserted into the ink occlusion body 3. At this time, the ink occlusion body 3 and the ink supply pipe 12 are pressed against each other by the frictional force between the fiber bundle of the ink occlusion body and the outer peripheral surface of the ink supply pipe.
Adhesion is the joining of two surfaces by chemical force or the like using an adhesive as a medium. For example, an ink supply in which an adhesive is applied to the outer peripheral surface in a connection hole provided in advance in the ink occlusion body 3 For example, a pipe is inserted and the inner peripheral surface of the connection hole and the outer peripheral surface of the ink supply pipe are bonded by a chemical force. At this time, the end opening of the ink supply tube 12 should not be blocked by the adhesive.
In the case of the present embodiment, a through hole for connection is provided in the absorber 31 in advance, and after inserting the ink supply pipe 12 there, it is connected to a connection hole provided in advance on the upper surface of the ink storage body 3. Thus, the connection state is created. At this time, the ink occlusion body 3 and the ink supply pipe 12 are connected by a frictional force between the inner peripheral surface of the connection hole for connection and the outer peripheral surface of the ink supply pipe.

  The fifth embodiment of the present invention has the above-described configuration, and the fourth embodiment is the same as the fourth embodiment except that the tip of the ink supply pipe 12 of the present embodiment is connected to the inside of the ink occlusion body 3. It is the same. In the present embodiment, since the tip of the ink supply pipe 12 is connected to the inside of the ink storage body 3, the connection between the ink supply pipe 12 and the ink storage body 3 can be made stronger.

Next, a sixth embodiment of the present invention will be described in detail with reference to FIGS. Here, only differences from the above-described embodiment will be described.
In the present embodiment, the ink supply pipe 12 is disposed on the side surface side of the ink storage body 3, and the tip of the ink supply pipe 12 is connected to the side surface of the ink storage body 3. A conceivable method for this is to provide a through-hole for connection in advance on the side surface of the fiber body 32 and insert the ink supply pipe 12 there. At that time, the ink supply pipe 12 is designed so that the tip of the ink supply pipe 12 is connected to the side surface of the ink storage body 3.

The sixth embodiment of the present invention is configured as described above, and the first to third components are the same except that the tip of the ink supply tube 12 of the present embodiment is connected to the side surface of the ink storage body 3. This is the same as the embodiment.
Also, as shown in FIG. 7, when refilling ink, the gripping body 8 is first removed, the ink tank 11 fitted with the ink tank cap 13 is taken out, and the ink tank 11 is replaced with a new ink tank. The occlusion body 3, the absorbent body 31, and the fiber body 32 can be replaced.
Here, an embodiment in which the sixth embodiment and the third embodiment are combined is shown in FIGS.
In the present embodiment, the wall member 33 that blocks the ink is used as the wall member that covers the side surfaces of the ink storage body 3 and the absorber 31. As a method for connecting the ink supply pipe 12, a method in which a through hole for connection is provided in advance on the side surface of the wall body 33 and the ink supply pipe 12 is inserted there can be considered. At that time, the ink supply pipe 12 is designed so that the tip of the ink supply pipe 12 is connected to the side surface of the ink storage body 3. In this case, the wall 33 and the ink supply pipe 12 can be detachably fitted. Further, the wall body 33 and the ink supply pipe 12 may be provided integrally.

Next, a seventh embodiment of the present invention will be described in detail with reference to FIG. Here, only differences from the above-described embodiment will be described.
In the present embodiment, the ink supply pipe 12 is disposed on the side surface side of the ink storage body 3, and the tip of the ink supply pipe 12 is connected to the inside of the ink storage body 3. A conceivable method for this is to provide a through-hole for connection in advance on the side surface of the absorber 31 and insert the ink supply pipe 12 there. Further, a connection hole for connection is provided in advance on the side surface of the ink occlusion body 3, and the tip of the ink supply pipe 12 is inserted into the connection hole so as to be connected to the ink occlusion body 3.
In the present embodiment, the method of connecting and connecting the ink supply pipe 12 and the ink occluding body 3 is the same as in the fifth embodiment.

  The seventh embodiment of the present invention is configured as described above, and the seventh embodiment is the same as the sixth embodiment except that the tip of the ink supply tube 12 of the present embodiment is connected to the inside of the ink occlusion body 3. It is the same. In the present embodiment, since the tip of the ink supply pipe 12 is connected to the inside of the ink storage body 3, the connection between the ink supply pipe 12 and the ink storage body 3 can be made stronger.

Next, an eighth embodiment of the present invention will be described in detail with reference to FIGS. Here, only differences from the above-described embodiment will be described.
In this embodiment, the number of the ink supply pipes 12 is one. As described above, the cross-sectional shape of the outer peripheral surface and inner peripheral surface of the ink supply tube 12 may be, for example, a circle, an ellipse, or a polygon such as a triangle or a quadrangle. The tip of the ink supply pipe 12 may be opened downward in the vertical direction or may be opened radially outward. Examples of the tip shape of the ink supply tube 12 include an inclined cut surface, a vertical surface, a conical surface, and a convex curved surface.
The ink supply pipe 12 according to the present embodiment is configured so that the function of supplying the ink in the ink tank 11 to the inside of the ink occlusion body 3 and the function of supplying the outside air to the ink tank 11 can be performed by one. The shape of the supply pipe 12 is selected.

The eighth embodiment of the present invention has the above configuration, and the operation thereof will be described in detail next.
The ink supply pipe 12 of the present embodiment has a function of supplying the ink in the ink tank 11 into the ink storage body 3 and a function of supplying outside air into the ink tank 11 by one. It is the same as that of the said embodiment.
FIG. 13 shows an embodiment in which the eighth embodiment and the third embodiment are combined. In the present embodiment, the wall member 33 that blocks the ink is used as the wall member that covers the side surfaces of the ink storage body 3 and the absorber 31. As a method for connecting the ink supply pipe 12, a method in which a through hole for connection is provided in advance on the side surface of the wall body 33 and the ink supply pipe 12 is inserted there can be considered. At that time, the ink supply pipe 12 is designed so that the tip of the ink supply pipe 12 is connected to the side surface of the ink storage body 3. In this case, the wall 33 and the ink supply pipe 12 can be detachably fitted. Further, the wall body 33 and the ink supply pipe 12 may be provided integrally.
Here, FIGS. 14 and 15 show an embodiment in which the eighth embodiment is combined with the fifth and seventh embodiments. In the present embodiment, since the tip of the ink supply pipe 12 is connected to the inside of the ink storage body 3, the connection between the ink supply pipe 12 and the ink storage body 3 can be made stronger.

Here, as shown in FIG. 16, an adjusting body 14 that adjusts the ink flow rate to the porous printing body 1 may be disposed between the porous printing body 1 and the ink occluding body 3. The adjustment body 14 is a sintered body of synthetic resin powder, and is preferably a sponge body having an appropriate hardness such as a polyvinyl acetal type. In this case, the adjustment body 14 can supply an appropriate amount of ink to the porous printing body 1, and is therefore useful in preventing stickiness of the seal. The relationship of the capillary force among the porous printing body 1, the ink storage body 3, and the adjustment body 14 may be adjusted so that an appropriate amount of ink moves to the printing surface 1a.
When the viscosity of the ink to be used is low, the capillary force of the adjusting body 14 is made stronger than that of the porous printing body 1 to increase the ink holding power. Conversely, when the viscosity of the ink to be used is high, the capillary of the adjusting body 14 is used. The movement of the ink to the porous printing body 1 may be adjusted by lowering the force of the porous printing body to reduce the ink holding power.

Next, a ninth embodiment of the present invention will be described in detail with reference to FIG. Here, only differences from the above-described embodiment will be described.
As shown in FIG. 17, a replenishment ink cartridge 15 containing ink instead of the ink tank cap 13 may be detachably fitted in the opening 11b. The replenishing ink cartridge 15 is a bottomed cylindrical body having an opening end 15a at one end, and the opening 11b and the opening end 15a are detachably fitted. As in the previous embodiment, the opening 11 b is sealed by the opening end 15 a of the refill ink cartridge 15. By being sealed, it is possible to prevent the ink stored in the refill ink cartridge from leaking outside. Here, the place where the opening 11b and the opening end 15a are fitted may be the same as or different from the place to be sealed. Various fitting methods such as concave-convex fitting, press-fitting fitting, and screw fitting can be adopted.
Here, when removing the refill ink cartridge 15 from the ink tank 11, in order to prevent the ink tank 11 and the main body 9 from being detached from the main body 9, the ink tank 11 and the refill are replenished by the fitting force between the ink tank 11 and the main body 9. It is necessary to weaken the fitting force with the ink cartridge 15.
Further, a lid or the like (not shown) is fitted to the opening end 15a until use, and the lid is removed after use and fitted to the opening 11b. At this time, the opening end portion 15a is fitted into the opening portion 11b of the ink tank 11 while maintaining an upward state with respect to the ground so that ink does not leak from the replenishment ink cartridge 15.

The ninth embodiment of the present invention has the above-described configuration, and the operation thereof will be described in detail next.
When the ink is used up and the refill ink cartridge 15 is replaced, the refill ink cartridge 15 is first removed from the ink tank 11. At that time, the ink tank 11 is maintained in a state of being fitted to the main body 9. Then, a new replenishment ink cartridge 15 is attached to the opening 11b of the ink tank 11 from the opening end 15a side.
When the replenishment ink cartridge 15 is mounted, first, after removing the lid (not shown) from the opening end 15a, the opening end 15a faces upward with respect to the ground so that the ink does not leak from the replenishing ink cartridge 15. The ink tank 11 is fitted into the opening 11b while maintaining the state.

Next, a tenth embodiment of the present invention will be described in detail with reference to FIGS. Here, only differences from the above-described embodiment will be described.
As shown in FIGS. 18 to 20, a plate-like plug 15b can be provided at the opening end 15a. A plug 15b is attached to the open end 15a of the refill ink cartridge 15 until the ink tank 11 is attached. When the replenishment ink cartridge 15 is attached to the ink tank 11, the stopper 15b is pushed into the replenishment ink cartridge by the opening pressing portion 11c provided in the ink tank opening 11b, thereby opening the plug. Also in this case, the opening 11b is sealed by the opening end 15a of the replenishing ink cartridge 15 as in the previous embodiment.
In order to prevent the ink from inadvertently leaking, after the ink tank opening and the opening end of the replenishing ink cartridge are sealed, by moving a small distance while maintaining this sealed state, It is desirable to open the plug 15b. The opening stopper 11c may use the opening end of the opening 11b as it is, or may be provided with a separate protrusion.
The plug body 15b can be selected in various ways. For example, a spherical body (FIG. 20A), a lens-shaped body (FIG. 20B), or the like can be selected. Moreover, the plug 15b may be formed of a film or the like (not shown) that can be broken by the plug-opening pressing portion 11c.

The tenth embodiment of the present invention has the above-described configuration, and the operation thereof will be described in detail next.
In the case of the present embodiment in which the plug 15b is provided at the opening end 15a of the replenishment ink cartridge 15, the plug pushing portion 11c is opened by pushing the plug 15b into the refill ink cartridge. Therefore, in this case, since there is no possibility that the ink flows out until the plug is opened, the direction of the opening end portion 15a does not need to be maintained upward with respect to the ground as in the sixth embodiment. That is, it can be mounted from any direction, upward, downward, or sideways. When the plug 15b is a film or the like, the plug 15b is broken and opened by the opening pressing portion 11c.

Next, an eleventh embodiment of the present invention will be described in detail with reference to FIGS. Here, only differences from the above-described embodiment will be described.
As shown in FIG. 21 and FIG. 22, the replenishment ink cartridge 15 includes a valve device that opens and opens when the plug 15b is pressed by the opening pressing portion 11c, and closes when the plug 15b is released. It may be configured to be attached to the open end 15a.
The valve device includes a cylindrical main body 15c, a lid portion 15d, a plug body 15b, and a coil spring 15e. The cylindrical main body 15c is fitted with a lid portion 15d in an opening in a state where the plug body 15b is incorporated therein via a coil spring 15e. On the peripheral surface of the ink outflow hole provided in the lid portion 15d, a valve seat portion that engages with the valve portion provided in the plug body 15b is provided, and the valve portion and the valve are normally operated by the elastic force of the coil spring 15e. The seat is pressed so as to be sealed.
When the plug body 15b is pressed upward by the opening pressing portion 11c, the plug body 15b moves upward against the elastic force of the coil spring 15e, and the sealed state of the valve portion and the valve seat portion is released. The ink in the refill ink cartridge flows into the ink tank 11. Further, when the pressing by the plug-opening pressing portion 11c is released, the valve portion and the valve seat portion are pressed against each other and sealed by the elastic force of the coil spring 15e.
The opening pressing portion 11c may be provided integrally with the ink tank 11, or may be provided separately as illustrated. When separate, the inner stopper 11d is attached to the opening 11b of the ink tank 11, the opening pusher 11c is provided at the upper end of the inner stopper 11d, and the opening is formed around the opening pusher 11c. 11b is provided. The opening 11b and the opening end 15a are detachably fitted. As in the previous embodiment, the opening 11 b is sealed by the opening end 15 a of the refill ink cartridge 15.

The eleventh embodiment of the present invention has the above-described configuration, and the operation thereof will be described in detail.
In the case of the valve device in which the valve opens and opens when the plug 15b is pressed by the opening pressing portion 11c, the direction of the opening end 15a is not limited. That is, it can be mounted from any direction, upward, downward, or sideways.
When the old replenishment ink cartridge 15 is removed from the ink tank 11 in order to replace it with a new replenishment ink cartridge 15, the ink may leak if the ink remains in the old replenishment ink cartridge 15. However, when the valve device is used, even if the old refill ink cartridge is removed from the ink tank, the opening end 15a is closed by the action of the valve, so that ink leakage does not occur.

Here, although the ninth to eleventh embodiments have been described based on the fourth embodiment, the fifth to eighth embodiments can of course be implemented.
As mentioned above, although this invention was demonstrated by the said embodiment, this invention is not limited to these, Of course, various improvement and deformation | transformation are possible within the range which does not deviate from the summary of this invention.

The figure which shows 1st, 2nd, 4th embodiment The figure which shows the example of the other ink supply pipe | tube of 1st, 2nd, 4th embodiment The figure which shows the example of the other ink supply pipe | tube of 1st, 2nd, 4th embodiment The figure which shows 3rd Embodiment The figure which shows 5th Embodiment The figure which shows 6th Embodiment The figure which shows the state which mounts the ink tank of 6th Embodiment. The figure which shows the example of the other wall member of 6th Embodiment The figure which shows the state which mounts the ink tank of the example of the other wall member of 6th Embodiment. The figure which shows 7th Embodiment The figure which shows 8th Embodiment The figure which shows the example of the other ink supply pipe | tube of 8th Embodiment The figure which shows the example of the other wall member of 8th Embodiment The figure which shows the other connection method of 8th Embodiment. The figure which shows the other connection method of 8th Embodiment. The figure which shows the state which has arrange | positioned the adjustment body 14 to 1st Embodiment. The figure which shows 9th Embodiment The figure which shows the state which mounts the replenishment ink cartridge among 10th Embodiment. The figure which shows 10th Embodiment The figure which shows the other replenishment ink cartridge among 10th Embodiment. The figure which shows the state which mounts the replenishment ink cartridge among 11th Embodiment. The figure which shows 11th Embodiment

DESCRIPTION OF SYMBOLS 1 Porous printing body 1a Printing surface 2 Receipt 3 Ink occlusion body 3a Ink discharge port 31 Absorber 31a Air distribution port 32 Fiber body 33 Wall body 4 Slide 5 Spring 6 Sheath 7 Fixing ring 8 Grip body 9 Main body 10 Marking surface cap 11 Ink tank 11a Inside cylinder 11b Opening 11c Opening pusher 11d Inner plug 12 Ink supply pipe
12a partition wall 13 ink tank cap 14 adjustment body 15 replenishment ink cartridge 15a open end 15b plug body 15c cylindrical main body 15d lid 15e coil spring

Claims (10)

An ink occlusion body is arranged on the upper surface side of the porous printed body having countless open cells,
On the upper surface side of the ink occluding body is disposed an absorber that absorbs excess ink with a weaker capillary force than the ink occluding body,
An ink self-contained stamp in which an ink tank having an ink supply pipe having an open end is disposed on the upper surface side of the absorber,
The outer surface of the ink occlusion body and the absorber is covered with a wall member so that ink does not leak, but a part or all of the lower surface of the ink occlusion body is opened and an ink discharge port is provided. In addition, part or all of the outer surface of the absorber is provided with an air circulation port that is open and air replacement is performed .
The ink supply pipe is characterized in that the end of the ink supply pipe is connected to the ink occlusion body.   The ink self-supporting stamp according to claim 1, wherein the wall member is a wall body that blocks ink, and a lower surface of the wall body is in contact with an upper surface of the porous printing body. The ink supply pipe is disposed on an upper surface side of the ink occlusion body, to claim 2 that claim 1, characterized in that the tip of the ink supply pipe is connected to the upper surface of the ink occlusion body The ink self-sufficiency stamp described. The ink supply pipe is disposed on an upper surface side of the ink occlusion body, to claim 2 that claim 1, characterized in that the tip of the ink supply pipe is connected to the inside of the ink occlusion body The ink self-sufficiency stamp described. The ink supply pipe is disposed on the side surface side of the ink occlusion body, to claim 2 that claim 1, characterized in that the tip of the ink supply pipe is connected to the side surface of the ink occlusion body The ink self-sufficiency stamp described. The ink supply pipe is disposed on the side surface side of the ink occlusion body, to claim 2 that claim 1, characterized in that the tip of the ink supply pipe is connected to the inside of the ink occlusion body The ink self-sufficiency stamp described. The ink self-sufficiency stamp according to any one of claims 1 to 6 , wherein the ink supply pipe is single or plural. An opening is provided on the upper surface side of the ink tank, an opening end is provided in a refill ink cartridge containing ink, and the opening and the opening end are detachably fitted and sealed. The ink self-contained stamp according to any one of claims 1 to 7 . The ink self-contained stamp according to claim 8 , wherein a plug body that opens when the opening and the opening end are fitted is attached to the opening end. The ink self-contained stamp according to claim 9 , wherein a plug body that is closed when the opening and the opening end are detached is attached to the opening end.

Images