JP5975420B2 - Reversing stamp - Google Patents

Description

In the present invention, in the standby state, the printed body faces the upper surface side by an elastic body such as a spring and is in contact with the ink pad. It is related to the reversal type stamp which becomes a stamped state.
In the present invention, “down” refers to the downward direction of gravity, and “up” refers to the upward direction of gravity.

Conventionally, this type of reversal type stamp is to print on the surface to be printed in a stamped state in which the print body and the ink pad are in contact at the standby position so that the ink adheres to the print body and the main body of the stamp is reversed. . If the stamping is repeated, the ink in the ink pad is naturally consumed, and the need for ink replenishment appears. Therefore, the ink pad fitted in the stamp was pulled out, and then the ink was dropped onto the ink pad. However, there was a tendency to replenish liquid ink excessively without knowing the appropriate amount of replenishment ink.
In order to solve this problem, Japanese Patent Application Laid-Open No. 2004-151867 discloses a reversible stamp that injects ink from a pipe connected to an ink storage member provided above the ink pad and replenishes the ink pad with ink.
Japanese Utility Model Publication No. 41-19042

  In the reversal type stamp of Patent Document 1, the ink is gradually supplied to the ink containing member through the pipe, and finally the ink is filled up to the allowable amount of the ink containing member, and the ink replenishment is finished. After that, the pipe inlet is capped and the printing work is performed. In this state, if the internal pressure in the pipe rises, such as a sudden temperature rise, the ink is ejected from the ink containing member and the ink leaks. Cause.

The reversal-type stamp of the first invention completed to solve the above problems is
An inner frame with a reversing guide inside,
An outer frame body mounted with an elastic body interposed between the inner frame body and the inner frame body;
A stamp main body that holds the printing body and can be reversed by the reversing guide;
An ink pad disposed in the inner frame;
In a reversal type seal consisting of
An ink occlusion body is arranged on the upper surface side of the ink pad,
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 tank having an ink supply tube with an open end is a reversing type stamp formed by connecting the tip of the ink supply tube to the ink occluding body,
The side surfaces of the ink occlusion body and the absorber are covered with wall members 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, a part or all of the upper surface of the absorber is provided with an air circulation port that is open and communicates with the atmosphere.
According to a second aspect of the invention, the wall member is a wall body that blocks ink, and the lower surface of the wall body is in contact with the upper surface of the ink pad. It is.
Further, the third invention is a fibrous body or porous body in which the wall member has a capillary force weaker than that of the ink occlusion body but air can circulate, and the lower surface of the fibrous body or porous body is the surface of the ink pad. 1 is a reverse stamp of the first invention, which is in contact with an upper surface.
According to a fourth aspect of the 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 a reversal type stamp in any one of invention to 3rd invention.
According to a fifth 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 a reversal type stamp in any one of invention to 3rd invention.
According to a sixth 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. It is a reversal type stamp in any one of invention to 3rd invention.
According to a seventh 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. It is a reversal type stamp in any one of invention to 3rd invention.
An eighth invention is the reversal type stamp according to any one of the first to seventh inventions, wherein the ink supply pipe is single or plural.
According to a ninth aspect of the invention, an opening is provided on the upper surface side of the ink tank, an opening end is provided in a replenishing ink cartridge containing ink, and the opening and the opening end are detachably fitted. In addition, the seal is an inversion type stamp according to any one of the first to eighth inventions, which is hermetically sealed.
According to a tenth aspect of the present invention, a plug body that opens when the opening and the end of the opening are fitted is attached to the opening end. It is.
An eleventh aspect of the invention is the reversible stamp according to the tenth aspect of the invention, wherein a plug body that closes when the opening portion and the opening end portion are detached is attached to the opening end portion. .

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 does not eject from the ink pad side.
In the second invention, the wall member that covers the outer surface of the ink occluding member is a wall member that blocks the ink. Therefore, even if the internal pressure in the ink tank rises as described above, the ink moves to the absorber side. However, it does not eject from the ink pad side.
In the third invention, the wall member that covers the outer surface of the ink occluding body is a fiber body or porous body that has a capillary force weaker than that of the ink occluding body but allows air to circulate. Even if the internal pressure increases, the ink moves not only to the absorber side but also to the fiber body or porous body side, and does not eject from the ink pad side.
In the fourth invention, since the ink supply pipe is disposed on the side surface of the ink occluding body and the tip of the ink supply pipe is connected to the side surface of the ink occluding body, the ink is smoothly introduced into the ink occluding body. Can be impregnated.
In the fifth invention, the ink supply pipe is arranged 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 sixth invention, the ink supply pipe is arranged 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. Can be impregnated.
In the seventh 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 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, the 1st Embodiment of this invention is described in detail based on FIGS.
The inner frame 1 is a box with an open bottom, and a slit 12 for moving a fixed shaft 52 of a stamp main body 5 to be described later is drilled in the vertical direction on the short side surface. A reversing guide 11 for reversing the stamp main body 5 is provided on the side.

  The outer frame body 4 is a box body whose bottom is opened, and a fixing hole 41 into which a fixing shaft 52 of the stamp main body 5 described later is fitted is provided inside the short side surface.

  An ink pad 6 is disposed on the ceiling portion of the inner frame 1. Various methods of arranging the ink pad 6 in the inner frame body 1 are conceivable. For example, a method of holding the ink pad 6 directly between ribs provided on the ceiling portion, or a method of holding the ceiling portion and the ink pad 6 together. A method of bonding, a method of fitting an ink cartridge or the like containing the ink pad 6 to the ceiling portion, and the like are conceivable. The ink pad 6 is obtained by impregnating a porous material such as sponge and felt with ink.

The stamp main body 5 holds a printed body 51 on the surface thereof. The printing body 51 is not a so-called permeation mark made of a porous material but a printing body of a type that transfers the ink of the ink pad 6.
On the side surface of the stamp main body 5, the fixing hole 41 of the outer frame body 4 is fitted, and a fixed shaft 52 that is in sliding contact with the slit 12 of the inner frame body 1 is engaged with the reversing guide 11. A reversing shaft 53 is provided for stably rotating 5.

An ink occlusion body 3 is disposed on the upper surface side of the ink pad 6.
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 ink pad 6 and the ink discharge port 3 a provided in the ink occlusion body 3 are in contact with each other. The relationship of the capillary force between the ink pad 6 and the ink occlusion body 3 is adjusted so that an appropriate amount of ink moves to the ink pad 6.

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 toward is considered.

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 ink tank 2 is provided with an ink supply pipe 21 having an opening at the bottom surface of the bottom, and the ink supply pipe 21 penetrates the bottom. The ink is accommodated in the ink tank interior 2a.
The ink supply tube 21 may be one, or may be a plurality of two or more, as in the eighth invention shown in FIGS.
First, the case of one will be described. The cross-sectional shape of the outer peripheral surface and inner peripheral surface of the ink supply tube 21 may be, for example, any of a circle, an ellipse, or a polygon such as a triangle or a quadrangle. The tip of the ink supply tube 21 may be opened downward in the vertical direction or may be opened radially outward. Examples of the tip shape of the ink supply tube 21 include an inclined cut surface, a vertical surface, a conical surface, and a convex curved surface.
Next, two or more lines will be described. The cross-sectional shape of the outer peripheral surface and the inner peripheral surface of the ink supply tube 21 may be, for example, a circle, an ellipse, or a polygon such as a triangle or a quadrangle. Further, the tip of each of the ink supply pipes 21 may be opened downward in the vertical direction or may be opened radially outward. Examples of the tip shape of each of the ink supply pipes 21 include an inclined cut surface, a vertical surface, a conical surface, and a convex curved surface.
As shown in FIG. 16, the side walls of the ink supply pipe 21 may be connected to each other. In this case, the inside of one cylindrical body is divided by a partition wall 21a extending in the vertical direction, and two ink supply pipes 21 are independently provided in parallel inside the cylindrical body.
As shown in FIG. 17, a configuration in which a small-diameter ink supply tube 21 is disposed inside a large-diameter ink supply tube 21 may be used. In this case, an annular flow passage is formed between the inner peripheral surface of the large-diameter ink supply tube 21 and the outer peripheral surface of the small-diameter ink supply tube 21, and the cross-sectional circle is formed inside the small-diameter ink supply tube 21. A shaped flow passage will be formed.

The ink tank 2 is integrally molded. As a method of integrally molding, for example, after the ink supply tube 21 is molded by injection molding, ink is accommodated and the other end is heat-sealed, or a method of molding by blow molding can be employed.
Further, an opening may be provided at the upper end of the ink tank 2, and the upper end opening 2b may be fitted with an ink tank cap 23 and sealed.
As a method of fitting with the ink tank cap 23, the ink tank cap 23 is fitted into the opening 2 b of the ink tank 2 in a sealed state. The method for fitting the ink tank 2 and the ink tank cap 23 may be screw fitting.

The reverse stamp of the present invention is attached as follows.
First, after the ink pad 6 is arranged on the ceiling portion of the inner frame body 1, the fixed shaft 52 of the stamp main body 5 is attached so as to be freely movable in the slit 12 of the inner frame body 1. Next, the ink occlusion body 3 is disposed on the upper surface of the ink pad 6. Then, an ink supply pipe 21 provided in the ink tank 2 is connected from the side surface of the ink occlusion body 3. Then, the outer frame body 4 is attached to the inner frame body 1 with the elastic body 7 interposed on the upper surface of the inner frame body 1 and at the same time, the fixing shaft 52 is fitted into the fixing hole 41 of the outer frame body 4 and assembled. It is done.
At this time, the tip of the ink supply pipe 21 is connected to the ink storage body 3. The connection means that the ink supply pipe 21 and the ink occlusion body 3 are connected. Here, in order to connect and connect the ink supply pipe 21 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 21 into a connection hole for connection provided in advance in the ink storage body 3. At this time, the ink occlusion body 3 and the ink supply pipe 21 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 21 is forcibly inserted into the ink occlusion body 3. At this time, the ink occlusion body 3 and the ink supply pipe 21 are pressed against each other by a 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 21 should not be blocked by the adhesive.
The connection method of the present invention is 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 21 is inserted therein. The ink supply pipe 21 and the through hole may be detachably fitted.

  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.
The inversion type stamp in a standby state placed so that the lower end of the inner frame 1 is in contact with the object to be printed is the state in which the elastic body 7 is most extended, and the inner frame 1 and the outer frame 4 are the most. In a separated state, the print body 51 is in an upward state and is in contact with the ink pad 6 and is supplied with ink (see FIG. 5A).
Next, the grip-like outer frame body 4 is grasped by hand and lowered. Then, the outer frame body 4 descends while compressing the elastic body 7, and at the same time, the fixed shaft 52 fitted in the fixing hole 41 also descends in the slit 12.
When the outer frame body 4 is further lowered, the stamp main body 5 comes into contact with the reversing guide 11. Then, the stamp main body 5 rotates around the fixed shaft 52 and is turned sideways. At this time, the reversing shaft 53 is engaged with the reversing guide 11 and the stamp main body 5 is stably rotated without causing rattling or the like.
Further, when the outer frame body 4 is lowered, the printing main body 5 is completely reversed 180 degrees by the action of the reversing guide 11 so that the printing body 51 faces downward, and the printing state in which the ink of the printing body 51 is transferred to the printing object. (See FIG. 5B).
Next, the pressing to the outer frame body 4 is released. If it does so, the elastic body 7 will repel, it will follow all the processes so far, it will return to a standby state, an ink pad will contact the printing body 51, and ink will be supplied again.
The above is the description of the reversal type stamping method of the present invention.

Next, an ink supply mechanism for supplying ink from the ink supply pipe 21 to the ink occlusion body 3 will be described.
Each of the ink supply pipes 21 has a function of supplying ink in the ink tank 2 to the inside of the ink storage body 3 and a function of supplying outside air into the ink tank 2. When supplying the ink in the ink tank 2 to the ink occlusion body 3, if the main body of the stamp is on the lower surface side, the ink in the ink tank 2 passes through at least one ink supply pipe 21 due to gravity to the ink occlusion body 3. Supplied. At the same time, outside air is taken into the ink tank 2 through another ink supply pipe 21. Accordingly, the ink in the ink tank 2 is impregnated in the ink occlusion body 3 and reaches the front end opening of the other ink supply pipe 21 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 21 that has taken in outside air, the front end opening is closed and airtight, and the supply of outside air into the ink tank 2 is stopped. Is done. Then, the ink supply from the ink tank 2 to the ink occlusion body 3 by the ink supply pipe 21 that has been supplying the ink is also stopped.
In this manner, the outflow of ink from the ink tank 2 and the inflow of air into the ink tank 2 (that is, replacement of ink and air) are stopped, and the ink tank 2 is temporarily sealed.
In this state, when printing is performed continuously, the ink consumed by the ink pad 6 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 ink pad 6 is supplied from the ink tank 2 through the ink supply pipe 21 and can be printed until all the ink in the ink tank 2 is consumed.
Here, the ink supply pipe 21 can perform a function of supplying the ink in the ink tank 2 into the ink storage body 3 and a function of supplying the outside air into the ink tank 2 by one.

If the outside air temperature changes when the ink tank 2 is sealed, the pressure in the ink tank changes. When the outside air temperature rises from the time when the ink tank 2 is sealed, the air in the ink tank expands to increase the internal pressure, and the ink is discharged from the ink supply pipe 21. 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 21.
Conversely, when the outside air temperature drops 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 21. 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 21.
When refilling ink, first, the outer frame 4 is removed, the ink tank 2 is taken out, and replaced with a new ink tank 2.

Next, a second 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.
Moreover, the cross-sectional shape of the outer peripheral surface and the inner peripheral surface of the ink supply tube 21 may be, for example, a circle, an ellipse, or a polygon such as a triangle or a quadrangle. Further, the tip of the ink supply pipe 21 may be opened in the horizontal direction or may be opened outward in the radial direction. Examples of the tip shape of the ink supply tube 21 include an inclined cut surface, a vertical surface, a conical surface, and a convex curved surface.

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 2 is in a sealed state, the pressure in the ink tank changes. When the outside air temperature rises from the time when the ink tank 2 is sealed, the air in the ink tank expands to increase the internal pressure, and the ink is discharged from the ink supply pipe 21. The discharged ink is absorbed by the absorber 31 side which 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 ink pad 6 side. No ink is ejected from the 6th side. 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 21.
Conversely, when the outside air temperature drops 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 21. 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 21.

Next, a third embodiment of the present invention will be described in detail based on FIG. 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.

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 fiber body 32 is employed instead of the wall body 33 of the second embodiment.
If the outside air temperature changes when the ink tank 2 is sealed, the pressure in the ink tank changes. When the outside air temperature rises from the time when the ink tank 2 is sealed, the air in the ink tank expands to increase the internal pressure, and the ink is discharged from the ink supply pipe 21. The discharged ink is absorbed by the absorber 31 or the fiber body 32 provided with the air circulation port 31a and communicating with the atmosphere and does not move to the print body side, and therefore can move to the ink pad 6 side. Therefore, no ink is ejected from the ink pad 6. 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 21. 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 21 is disposed on the side surface side of the ink storage body 3, and the tip of the ink supply pipe 21 is connected to the side 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 side surface of the fiber body 32 or the wall body 33 and the ink supply pipe 21 is inserted therein. At that time, the ink supply pipe 21 is designed so that the tip of the ink supply pipe 21 is connected to the side 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 21 of the present embodiment is connected to the side surface of the ink storage body 3. This is the same as the embodiment.
In addition, as shown in FIG. 8, when the ink is replenished, the ink tank 2 is taken out and replaced with a new ink tank. When the ink storage body 3, the absorber 31, the wall body 33 or the fiber body 32 is replaced. It is also possible to adopt a configuration that can be exchanged. In this case, the wall 33 and the ink supply pipe 21 can be detachably fitted. Further, the wall body 33 and the ink supply pipe 21 may be provided integrally.

Next, a fifth 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 21 is arranged on the side surface side of the ink storage body 3, and the tip of the ink supply pipe 21 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 side surface of the fiber body 32 or the wall body 33 and the ink supply pipe 21 is inserted therein. 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 21 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 21 and the ink occlusion body 3, bonding, pressure welding, adhesion, and the like are conceivable.
Joining means joining two members, for example, inserting the ink supply pipe 21 into a connection hole for connection provided in advance in the ink storage body 3. At this time, the ink occlusion body 3 and the ink supply pipe 21 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 21 is forcibly inserted into the ink occlusion body 3. At this time, the ink occlusion body 3 and the ink supply pipe 21 are pressed against each other by a 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 21 should not be blocked by the adhesive.
In the case of the present embodiment, a through hole for connection is provided in advance on the side surface of the fiber body 32 or the wall body 33, and the ink supply pipe 21 is inserted therein, and then provided in advance on the side surface of the ink occlusion body 3. The connection state is created by connecting to the connection hole. At this time, the ink occlusion body 3 and the ink supply pipe 21 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 tube 21 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 21 is connected to the inside of the ink occlusion body 3, the connection between the ink supply pipe 21 and the ink occlusion body 3 can be made stronger.

Next, a sixth 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 21 is disposed on the upper surface side of the ink storage body 3, and the tip of the ink supply pipe 21 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 21 is inserted therein. At this time, the ink supply pipe 21 is designed so that the tip of the ink supply pipe 21 is connected to the upper surface of the ink occlusion 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 21 of the present embodiment is connected to the upper surface of the ink storage body 3. This is the same as the embodiment. Here, as shown in FIG. 12, an embodiment in which the sixth embodiment and the third embodiment are combined can also be implemented.

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 21 is arranged on the upper surface side of the ink storage body 3, and the tip of the ink supply pipe 21 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 21 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 21 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 21 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 21 of the present embodiment is connected to the inside of the ink storage body 3. It is the same. In the present embodiment, since the tip of the ink supply pipe 21 is connected to the inside of the ink occlusion body 3, the connection between the ink supply pipe 21 and the ink occlusion body 3 can be made stronger. In addition, as shown in FIG. 14, an embodiment in which the seventh embodiment and the third embodiment are combined can also be implemented.

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 the present embodiment, a plurality of the ink supply pipes 21 are provided, and here, the case of two is described. The cross-sectional shape of the outer peripheral surface and the inner peripheral surface of the ink supply tube 21 may be, for example, a circle, an ellipse, or a polygon such as a triangle or a quadrangle. Further, the tip of each of the ink supply pipes 21 may be opened downward in the vertical direction or may be opened radially outward. Examples of the tip shape of each of the ink supply pipes 21 include an inclined cut surface, a vertical surface, a conical surface, and a convex curved surface.
As shown in FIG. 16, the side walls of the ink supply pipe 21 may be connected to each other. In this case, the inside of one cylindrical body is divided by a partition wall 21a extending in the vertical direction, and two ink supply pipes 21 are independently provided in parallel inside the cylindrical body.
As shown in FIG. 17, a configuration in which a small-diameter ink supply tube 21 is disposed inside a large-diameter ink supply tube 21 may be used. In this case, an annular flow passage is formed between the inner peripheral surface of the large-diameter ink supply tube 21 and the outer peripheral surface of the small-diameter ink supply tube 21, and the cross-sectional circle is formed inside the small-diameter ink supply tube 21. A shaped flow passage will be formed.

The eighth embodiment of the present invention has the above configuration, and the operation thereof will be described in detail next.
The ink supply tube 21 according to the present embodiment has two functions: a function of supplying ink in the ink tank 2 to the inside of the ink occlusion body 3 and a function of supplying outside air to the ink tank 2 in two. It is the same as that of the said embodiment.
Embodiments obtained by combining the eighth embodiment and the second embodiment are shown in FIGS. 15, 18, 19, and 20. 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.
Embodiments obtained by combining the eighth embodiment and the third embodiment are shown in FIGS. In the present embodiment, a fiber body 32 is used as a wall member that covers the side surfaces of the ink storage body 3 and the absorber 31.

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. 25, a replenishment ink cartridge 22 containing ink may be detachably fitted in the opening 2b. The refilling ink cartridge 22 is a bottomed cylindrical body having an opening end 22a at one end, and the opening 2b and the opening end 22a are detachably fitted. The opening 2 b is sealed by the opening end 22 a of the refill ink cartridge 22. 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 2b and the opening end 22a 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.
Further, a lid or the like (not shown) is fitted to the opening end 22a until use, and the lid is removed after use and fitted to the opening 2b. At this time, the opening end 22a is fitted into the opening 2b of the ink tank 2 while maintaining the upward direction with respect to the ground so that the ink does not leak from the replenishment ink cartridge 22.

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 22 is replaced, the refill ink cartridge 22 is first removed from the ink tank 2. At that time, the ink tank 2 is maintained in the state of being fitted to the wall body 33. Then, a new refill ink cartridge 22 is mounted on the opening 2b of the ink tank 2 from the opening end 22a side.
When the replenishment ink cartridge 22 is mounted, first, after removing the lid (not shown) from the opening end 22a, the opening end 22a is directed upward with respect to the ground so that ink does not leak from the replenishment ink cartridge 22. The ink tank 2 is fitted into the opening 2b 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. 26 to 28, a plate-like plug body 22b may be provided at the opening end 22a. A plug 22 b is attached to the open end 22 a of the refill ink cartridge 22 until it is attached to the ink tank 2. When the replenishment ink cartridge 22 is attached to the ink tank 2, the stopper 22b is pushed into the replenishment ink cartridge by the opening pressing portion 2c provided in the ink tank opening 2b, thereby opening the plug. Also in this case, the opening 2b is sealed by the opening end 22a of the replenishing ink cartridge 22 as in the previous embodiment.
In order to prevent the ink from leaking inadvertently, the ink tank opening 2b and the opening end 22a of the replenishment ink cartridge 22 are sealed, and then moved a small distance while maintaining this sealed state. Therefore, it is desirable to open the plug 22b. The opening pressing portion 2c may use the opening end of the opening 2b as it is, or may be provided with a separate protrusion.
The plug body 22b can be variously selected, and for example, a spherical body (FIG. 28A), a lens-shaped body (FIG. 28B), or the like can be selected. The plug 22b may be formed of a film or the like (not shown) that can be broken by the plug-opening pressing portion 2c.

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 22b is provided at the opening end 22a of the replenishment ink cartridge 22, the plug pushing portion 2c is opened by pushing the plug 22b 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 22a does not need to be maintained upward with respect to the ground as in the ninth embodiment. That is, it can be mounted from any direction, upward, downward, or sideways. When the plug 22b is a film or the like, the plug 22b is broken and opened by the opening pressing portion 2c.

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.
29 and 30, the replenishment ink cartridge 22 includes a valve device that opens and closes when the plug 22b is pressed against the opening pressing portion 2c and closes when the plug 22b is released. It may be configured to be attached to the opening end 22a.
The valve device includes a cylindrical main body 22c, a lid portion 22d, a plug 22b, and a coil spring 22e. The cylindrical main body 22c is fitted with a lid portion 22d in the opening in a state where the plug body 22b is incorporated therein via a coil spring 22e. A valve seat portion that engages with a valve portion provided in the plug body 22b is provided on the peripheral surface of the ink outflow hole provided in the lid portion 22d. Normally, the valve portion and the valve are caused by the elastic force of the coil spring 22e. The seat is pressed so as to be sealed.
When the plug 22b is pressed upward by the plug opening pressing portion 2c, the plug 22b moves upward against the elastic force of the coil spring 22e, 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 2. Further, when the pressing by the opening pressing portion 2c 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 22e.
The opening pressing portion 2c may be provided integrally with the ink tank 2, or may be provided separately as shown in the figure. When separate, the inner plug 2d is attached to the opening 2b of the ink tank 2, the opening pressing portion 2c is provided at the upper end of the inner plug 2d, and the opening is formed around the opening pressing portion 2c. 2b is provided. The opening 2b and the opening end 22a are detachably fitted. As in the previous embodiment, the opening 2 b is sealed by the opening end 22 a of the refill ink cartridge 22.

The eleventh embodiment of the present invention has the above-described configuration, and the operation thereof will be described in detail.
Even in the case of the valve device in which the valve opens and opens when the plug 22b is pressed by the opening pressing portion 2c, the direction of the opening end 22a is not limited. That is, it can be mounted from any direction, upward, downward, or sideways.
When the old replenishment ink cartridge 22 is removed from the ink tank 2 in order to replace it with a new replenishment ink cartridge 22, ink may leak if the ink remains in the old replenishment ink cartridge 22. However, when the valve device is used, even if the old refill ink cartridge is removed from the ink tank, the opening end 22a 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. Moreover, in FIGS. 6-29, it demonstrated in the state which removed the outer frame body 4. FIG.
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 perspective view which shows 1st Embodiment The perspective view which looked at the state which decomposed | disassembled 1st Embodiment from upper direction The perspective view which looked at the state which decomposed | disassembled 1st Embodiment from the downward direction AA sectional view of FIG. FIG. 1 is a cross-sectional view taken along the line BB in FIG. The figure which shows 2nd, 4th embodiment The figure which shows 3rd Embodiment The figure which shows the state which mounts the ink tank of 4th Embodiment. The figure which shows 5th Embodiment The figure which shows the example of the other wall member of 5th Embodiment The figure which shows 6th Embodiment The figure which shows the example of the other wall member of 6th Embodiment The figure which shows 7th Embodiment The figure which shows the example of the other wall member of 7th Embodiment The figure which shows 8th Embodiment The figure which shows the other ink supply pipe | tube of 8th Embodiment. The figure which shows the other ink supply pipe | tube of 8th Embodiment. The figure which shows 8th Embodiment The figure which shows 8th Embodiment The figure which shows 8th Embodiment The figure which shows 8th Embodiment The figure which shows 8th Embodiment The figure which shows 8th Embodiment The figure which shows 8th 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 Inner frame 11 Inversion guide 12 Slit 2 Ink tank 2a Ink tank inside 2b Opening part 2c Opening pushing part 2d Inner plug 21 Ink supply pipe 21a Partition wall 22 Refilling ink cartridge 22a Open end 22b Plug body 22c Tubular main body 22d lid portion 22e coil spring 23 ink tank cap 3 ink occlusion body 3a ink discharge port 31 absorber 31a air circulation port 32 fiber body 33 wall body 4 outer frame body 41 fixing hole 5 printing body 51 printing body 52 fixing shaft 53 reversing shaft 6 Ink pad 7 Elastic body

Claims (11)

An inner frame with a reversing guide inside,
An outer frame body mounted with an elastic body interposed between the inner frame body and the inner frame body;
A stamp main body that holds the printing body and can be reversed by the reversing guide;
An ink pad disposed in the inner frame;
In a reversal type seal consisting of
An ink occlusion body is arranged on the upper surface side of the ink pad,
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 tank having an ink supply tube with an open end is a reversing type stamp formed by connecting the tip of the ink supply tube to the ink occluding body,
The side surfaces of the ink occlusion body and the absorber are covered with wall members 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. A reversal type stamp comprising a part or all of an upper surface of the absorbent body provided with an air circulation port which is open and communicates with the atmosphere.   The reversal type 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 ink pad.   The wall member is a fiber body or a porous body that has a capillary force weaker than that of the ink occlusion body but air can flow, and the lower surface of the fiber body or the porous body is in contact with the upper surface of the ink pad. The inversion stamp according to claim 1, wherein   4. The ink supply pipe according to claim 1, wherein 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. The reversal type stamp described.   4. The ink supply pipe according to claim 1, wherein 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 the inside of the ink storage body. The reversal type stamp described.   4. The ink supply pipe according to claim 1, wherein the ink supply pipe is disposed on an upper surface side of the ink storage body, and a tip of the ink supply pipe is connected to an upper surface of the ink storage body. The reversal type stamp described.   4. The ink supply pipe according to claim 1, wherein the ink supply pipe is disposed on an upper 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. The reversal type stamp described.   The inversion type stamp according to any one of claims 1 to 7, 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 inversion stamp according to any one of claims 1 to 8.   The reversible stamp according to claim 9, wherein a plug body that opens when the opening and the opening end are fitted is attached to the opening end.   The reversible stamp according to claim 10, wherein a plug body that is closed when the opening and the opening end are detached is attached to the opening end.

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