JP2000094821A - Stamp unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To give a substantially total quantity of ink in an ink pack to a porous resin layer being a stamp material. SOLUTION: The bottom surface of the ink pack accommodation part 22 of a holder member 4 is made into a flat surface, and an ink pack 6 is compressed by a flat cardboard 37 disposed at the lower side of a grip member 5 so as to allow the pack to be unsealed. Since the ink pack is held from its upper and lower sides by two flat surfaces, very little ink is left within the ink pack 6, the predetermined times of stamp printing expected by one ink pack can be almost accomplished.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stamp unit, and more particularly to a stamp unit in which a stamping material having a porous resin layer containing a light energy absorbing substance is held by a holder.

[0002]

2. Description of the Related Art As one of the stamp units proposed at present, Japanese Patent Application No. 10-525 proposed by the present applicant has been proposed.
No. 74. The stamp unit includes a grip (handle) member, a holder member, and a skirt member. Then, the holder member and the grip member are connected so that the holder member can move up and down within the skirt member, and a stamp material (a stamp surface forming member) is provided on the lower surface of the holder member by thermal bonding. In such a stamp unit, the printing material is such that a lower layer made of a soft porous resin in which a light energy absorbing material such as carbon black is dispersed, and ink is stored and pressure is uniformly applied to the lower layer. It is formed in a two-layer structure including an upper layer made of a hard porous resin.

In order to make a plate of this stamp material, first, characters and images are printed on the transparent film via a thermal head and a transfer ribbon while a roll-shaped transparent film is conveyed in a stamp manufacturing apparatus, to prepare a positive original. Then, the positive document is opposed to the lower layer of the printing material, and the printing material is pressed with a transparent acrylic plate interposed therebetween.
The holder member is set on the stamp manufacturing device. In this state, when the xenon tube emits light, light is irradiated to the lower layer of the printing material through the positive document. As a result, only the lower layer portion irradiated with light corresponding to the transparent portion of the document is melted and solidified by the heat-generating action of the light energy absorbing material, so that the portion is sealed and the ink does not pass through. Become. On the other hand, the lower layer, which is not irradiated with light and is not melted and solidified, remains as it is without being sealed corresponding to the characters and the like of the document. As a result, a stamp is formed in which the seal portion (non-print portion) and the non-seal portion (print portion) of the desired pattern are mixed on the lower surface of the printing material.

Further, the ink pack can be housed in a housing portion having a bottom surface on which irregularities are formed by lattice-like ribs in the holder member, and the grip member is pressed down and arranged at the lower end of the grip member. The ink pack is opened by sandwiching the ink pack between the plate-shaped member and the rib. The ink that has flowed out of the opened ink pack flows down from almost the entire bottom surface to the stamp material side and is stored in the upper layer and the lower layer of the stamp material, oozes only from the non-seal portion on the lower surface of the lower layer, and from the seal portion. Does not exude. When stamp printing characters and the like, the grip unit is pressed downward with the stamp unit arranged at a desired position on the printing paper. As a result, the holder moves downward, the printing material comes into contact with the printing paper, and ink adheres to the printing paper from the non-seal portion of the lower layer of the printing material, thereby printing characters and the like.

[0005]

However, in the above-described stamp unit disclosed in Japanese Patent Application No. 10-52574, the ink pack is disposed on the bottom surface having irregularities formed by grid-like ribs. When the ink pack is pressed down by the plate-shaped member, a part of the ink pack gets stuck in the concave portion between the ribs, and the ink in that part may not be discharged from the ink pack. For this reason, the entire amount of ink contained in the ink pack is not given to the stamp material, and a predetermined number of times of stamp printing cannot be performed with one ink pack.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a stamp unit in which a stamping material having a porous resin layer containing a light energy absorbing substance is held by a holder portion is included in an ink pack. A main object of the present invention is to provide a stamp unit capable of supplying substantially the entire amount of ink used to a porous resin layer serving as a stamp material and performing a predetermined number of times of stamp printing to be performed by one ink pack. It is assumed that.

[0007]

According to a first aspect of the present invention, there is provided a stamp unit in which a stamp material having a porous resin layer containing a light energy absorbing substance is held by a holder. The holder portion has an ink pack storage portion having an ink pack support flat surface having an ink supply hole to the porous resin layer side as a bottom surface, and the ink pack stored in the ink pack storage portion is provided. , Is configured to be opened by being pressed against the ink pack supporting flat surface from above.

According to the stamp unit of the present invention, the ink pack accommodated in the ink pack accommodating portion is opened by being pressed against the ink pack supporting flat surface from above. The ratio of the ink remaining in the ink pack can be reduced as compared with the case where the uneven surface is not a flat surface. Therefore, the number of times of printing per ink pack can be increased. In the present specification, the “flat surface” includes a flat surface having negligible irregularities as compared with the size of the ink pack.

Further, the stamp unit according to the second aspect is configured such that the ink pack stored in the ink pack storage section is opened by being pressed from above by a flat member.

According to the stamp unit of the present invention, since the ink pack is pressed by the flat member from above, the ink pack is pressed by the flat surface from above and below, and
As a result, the ink is squeezed on the upper and lower flat surfaces, so that the ratio of the ink remaining in the ink pack can be further reduced.

According to a third aspect of the present invention, there is provided a stamp unit, a holder member slidably arranged vertically in the skirt member and holding a stamp material at a lower end thereof, and a stamp member disposed above the holder member. A stamp unit having a grip member for moving the holder member downward, wherein the holder unit has an ink pack storage unit having an ink pack supporting flat surface having an ink supply hole as a bottom surface, and the ink pack storage unit. The ink pack stored in the printer is opened by being pressed between a flat member that moves downward by pressing the grip member and a flat surface that supports the ink pack.

According to the stamp unit of the present invention, the ink pack is pressed on the flat surface from above and below by a simple operation of pressing the grip member, and the ratio of the ink remaining in the ink pack is further reduced. Can be.

In the stamp unit according to a fourth aspect of the present invention, the cutting means for cutting the ink pack is provided in the ink supply hole so as to protrude from the flat surface of the ink pack support.

According to the stamp unit of the present invention, since the cutting means for cutting the ink pack is provided so as to protrude from the flat surface of the ink pack support, the opening of the ink pack becomes easy. Further, since the cutting means is provided in the ink supply hole, the cutting position of the ink pack is opposed to the ink supply hole, and the ink quickly flows into the ink supply hole. Therefore, the time until the ink reaches the printing material can be reduced.

Further, in the stamp unit of the present invention, the number of the ink supply holes is provided by a number corresponding to the size of the holder portion.

According to the stamp unit of the present invention, since the ink supply holes are provided in a number corresponding to the size of the holder portion, even if the holder member is large in size, especially at the peripheral edge of the stamp material. Can supply ink quickly. Therefore, the stamp printing density becomes uniform over the entire surface, and the time required from the opening of the ink pack to the arrival of the ink on the printing material can be significantly reduced.

In the stamp unit of the present invention, a plurality of the ink supply holes are provided, and a partition member is provided between the plurality of ink supply holes.

According to the stamp unit of the present invention, since the partition member is provided between the plurality of ink supply holes, for example, when an ink pack is used for each of the ink supply holes, each ink pack has a predetermined size. It can be prevented from deviating from the position.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic exploded perspective view of a stamp unit according to the present embodiment, and FIG. 2 is a side view of the stamp unit in a state where an unopened ink pack is stored in an ink pack storage section. It is sectional drawing. FIG. 3 is a side sectional view of the stamp unit immediately after the ink pack in the ink pack storage unit is opened. As shown in FIGS.
The stamp unit 1 according to the present embodiment includes a skirt member 2 that supports the entire stamp unit 1 during stamp printing.
And a holder member 4, which is slidably arranged in the skirt member 2 in the vertical direction and has a lower end portion on which the stamp material 3 is held by thermal bonding, and is fitted and connected to the holder member 4, and the holder member is used for stamp printing. A grip member 5 for moving the printing material 4 downward to press the printing material 3 against printing paper (not shown), and a cap member 60 for covering and protecting the printing material 3 of the holder member 4 are provided.

The ink pack storage 22 of the holder member 4 can store the ink pack 6 in which ink is filled in a bag-like pack formed of a film material. The ink pack 6 is filled with an amount of ink substantially equal to the amount of ink that can be stored in the printing material 3. Then, a thick paperboard 37 can be arranged between the ink pack 6 and the bottom surface of the grip member 5. As the above-mentioned film material, polyethylene, polypropylene, polyester, nylon or the like is used alone or in combination of two or more kinds.

Next, the skirt member 2 of the stamp unit 1 will be described with further reference to FIGS. 4 is a side view of the skirt member 2, FIG. 5 is an end view of the skirt member 2, and FIG. In these figures, the skirt member 2 has a substantially rectangular insertion hole 10 in plan view, and the insertion hole 10 is provided with an inner wall 11 through which the holder member 4 is slidably inserted. The skirt member 2 includes an upper skirt portion 13 having an outer wall 12 formed integrally with the inner wall 11 outside the inner wall 11.
And a lower skirt portion 15 having an outer wall 14 formed so as to be slightly flared continuously from the outer wall 12.

Both end surfaces (left and right end surfaces) of the upper skirt portion 13
In the position above the inner wall 11, the holder member 4 is
A spring locking portion 17 is formed to lock one end of the torsion spring 16 so as to constantly urge the inside upward. At a position obliquely below the spring locking portion 17, a semilunar positioning projection 18 is formed for externally inserting the coil portion of the torsion spring 16 and positioning the coil portion. Further, the inclined protrusions 3 formed on both end surfaces of the holder member 4 are provided at substantially the center of the inner wall 11.
5 (to be described later) is vertically slidably inserted thereinto.
Are formed. When the holder member 4 moves downward during stamp printing, the vertical groove 19 holds the holder member 4.
To guide the inclined projection 35 in the vertical direction. In addition, between the vertical groove 19 and the positioning projection 18, the torsion spring 16 is restricted from moving in the direction away from the end face so that the engagement between the torsion spring 16 and the lower end of the inclined projection 35 is not released. For this purpose, a spring displacement suppressing member 9 having an opening (not shown) into which the torsion spring 16 is inserted is provided.

The lower skirt member 15 is placed on the printing paper at the time of stamp printing and supports the entire stamp unit 1 on the printing paper.
Are provided at the lower end positions of the four corners of the outer wall 14 which constitutes the above. At the center of the four surfaces of the outer wall 14 of the lower skirt member 15, a downward arrow 21 indicating the stamp printing direction is formed.

Next, the holder member 4 will be described with reference to FIGS.
1 will be further described. 7 is a perspective view of the holder member 4, FIG. 8 is a side view of the holder member 4, FIG. 9 is a side sectional view of the holder member 4, FIG. 10 is a plan view, and FIG. 11 is a bottom view. In these figures, the holder member 4 is formed integrally with an upper holder portion 30 and a lower holder portion 31 according to the respective shapes of the upper skirt portion 13 and the lower skirt portion 15 of the skirt member 2. The upper holder portion 30 includes a peripheral wall 3 that forms a substantially rectangular cylindrical body in plan view.
The front wall and the rear wall of the peripheral wall 32 (FIG. 8)
In the upper part, only one of them is shown), three long-hole-shaped concave grooves 33 are formed horizontally aligned. In addition, between the three concave grooves 33, wedge-shaped regulating projections 34 are provided which are inclined downward and outward from the wall surface of the peripheral wall 32. Here, a rib locking groove 54 (described later) of the grip member 5 is fitted into each of the concave grooves 33, whereby the holder member 4 and the grip member 5 are fixedly connected. When the holder member 4 is moved downward during stamp printing, the regulating protrusion 34 contacts the upper edge of the outer wall 12 of the upper skirt portion 13 of the skirt member 2 to regulate the amount of downward movement of the holder member 4. Perform the action.

On both end surfaces (left and right end surfaces in FIG. 8) of the peripheral wall 32 of the upper holder portion 30, there are provided wedge-shaped inclined projections 35 inclined outward and downward from the wall surface of the peripheral wall 32. When the holder member 4 is inserted from below the skirt member 2, the inclined protrusion 35 is slidably inserted up and down in the vertical groove 19 of the upper skirt portion 13. , The other end of the torsion spring 16 is locked. Thereby, the holder member 4 is slidable vertically in the skirt member 2 by the cooperation of the inclined protrusion 35 and the vertical groove 19, and one end of the torsion spring 16 is engaged with the upper skirt portion 13 by the spring engagement. The holder member 4 is constantly biased upward in the skirt member 2 based on the fact that the holder member 4 is locked by the portion 17 and the other end is locked by the lower end of the inclined protrusion 35.

The peripheral wall 3 of the upper holder 30 of the holder member 4
The bottom surface 23 of the ink pack storage portion 22 which is a substantially rectangular parallelepiped region surrounded by 2 is flat, and an ink supply hole 24 communicating with the lower holder portion 31 is provided at the center. A cutting rib 25 for cutting and opening the ink pack 6 is provided in the ink supply hole 24.
It is provided so as to slightly protrude.

On the inner wall surface of the ink pack accommodating section 22, four elongated ink refill holes 2 extending from the upper end of the holder member 4 to the bottom surface of a support column 27 (see FIG. 11) described later.
6 are provided. The ink replenishing hole 26 is used when a user reserves the ink without using the ink pack when the amount of the ink supplied by the ink pack 6 stored in the printing material 3 becomes small. At this time, the ink is injected from the ink supply hole 26 with the grip member 5 removed.

Further, as shown in FIG.
A large number of columnar support columns 27 each having a length of several mm are arranged in a lattice shape on the lower holder portion 31. The support column 27 extends from a lower end of the lower holder portion 31 to a position where it is slightly retracted and comes into contact with the stamp material 3 held by the holder member 4, and the bottom surface of the support column 27 is substantially one plane. Is formed. Further, the lower holder portion 31 is formed integrally and continuously from the upper holder portion 30, and has a peripheral wall 38 which is slightly larger outside the peripheral wall 32. The holder member 4 is formed of any one of ABS resin, polyacetal copolymer, polyolefin resin such as polypropylene, polyethylene, and nylon, and PC resin.

The cutting rib 25 presses the ink pack 6 between the cutting rib 25 and the cardboard board 37 when the grip member 5 is pressed down.
The ink pack 6 is broken and opened. In order to reliably open the ink pack 6, the cutting rib 25 is used.
Are formed sharply. The ink supply hole 24 guides the ink flowing out of the ink pack 6 opened by the cutting rib 25 downward.
As a result, the ink is impregnated into the printing material 3.

Outside the longitudinal wall of the peripheral wall 38 constituting the lower holder portion 31, an inwardly inclined groove 43 is formed in a substantially wedge-like shape at a substantially central position thereof, and on both sides of the inclined groove 43. Has one or two detection grooves 44 formed therein. Here, the inclined groove 43 is provided by the present applicant in Japanese Patent Application No.
This groove is used to set the holder member 4 at a predetermined plate making position in the stamp manufacturing apparatus when forming a stamp from the stamp material 3 using the stamp manufacturing apparatus disclosed in the specification and drawings of Japanese Patent No. 249983. At this time, the inclined groove 43
Since both sides are formed on the inclined surface, even when the positional relationship between the positioning mechanism and the holder member 4 in the stamp manufacturing apparatus is slightly displaced, the holder is formed based on the cam action between the positioning member of the positioning mechanism and the inclined surface. Member 4 is
The positioning member is moved so as to contact the center position of the inclined groove 43. Thereby, the holder member 4
It is set at a predetermined plate making position of the stamp manufacturing apparatus. Further, the number and the position of the detection grooves 44 are changed according to the size of the holder member 4, and the size of the holder member 4 is specified by cooperation with a groove sensor provided in a positioning mechanism of the stamp manufacturing apparatus. Used to The positions of the inclined groove 43 and the detection groove 44 on one wall surface of the peripheral wall 38 are different from those of the inclined groove 43 on the other wall surface.
It is set so as to be rotationally symmetric with the formation position of the detection groove 44. This is because when the holder member 4 is set at a predetermined plate making position by the positioning mechanism of the stamp manufacturing apparatus, plate making of the stamp material 3 can be performed even when the front wall and the rear wall are set upside down.

As shown in FIG. 8, a pair of locking projections 45 are formed at lower positions on the longitudinal wall of the peripheral wall 38. The locking projection 45 is locked in a locking groove 62 of a cap member 60 described later, and is used for attaching the cap member 60 to a lower end of the lower holder portion 31.
Thus, the seal surface of the seal material 3 held at the lower end of the peripheral wall 38 is protected by the cap member 60.

Next, the grip member 5 will be described with reference to FIGS.
This will be described with further reference to FIG. 12 is a side view of the grip member 5, FIG. 13 is a bottom view of the grip member 5, and FIG.
2 is a cross-sectional view of the grip member 5 in the width direction.

In these figures, on the upper surface of the grip member 5, there is formed a label sticking portion 50 for sticking a label or the like indicating the stamp content formed on the stamp material 3 as described above. Further, inside the grip member 5, from the lower surface of the upper wall, as shown in FIGS.
2 is formed with an insertion portion 51 to be inserted therein. The insertion portion 51 has a function of pressing the ink pack 6 disposed in the holder member 4 via the cardboard 37.

The insertion portion 51 is shown in FIG.
As shown in FIG. 3, it has a basically rectangular shape, and four concave portions 52 are formed at positions opposing each other on both sides. The concave portion 52 is used when the insertion portion 51 of the grip member 5 is inserted into the peripheral wall 32 of the holder member 4.
It is provided at a position corresponding to the ink replenishing hole 26 formed along the peripheral wall 32. It should be noted that the two pairs of the concave portions 52 are formed so that the wall portion of the ink replenishing hole 26 can be inserted no matter what state the insertion portion 51 of the grip member 5 is inserted into the peripheral wall 32. This is so as not to cause any trouble. A plurality of (twelve in FIG. 13) ribs 53 are formed in the inner wall surface of the grip member 5 in the vertical direction, and a rib locking groove 54 is provided near the lower end of each rib 53. It is formed integrally. The rib locking groove 54 is fitted into each of the concave grooves 33 formed on the upper portion of the outer surface of the peripheral wall 32, and thereby the holder member 4 and the grip member 5 are integrally connected. .

Next, a cap member 60 attached to the lower end portion of the lower holder portion 31 of the holder member 4 will be described with reference to FIG.
5 and FIG. FIG. 15 is a side view of the cap member 60, and FIG. 16 is a side sectional view of the cap member 60. In each of the figures, the cap member 60 has a box shape with an open top, and is provided at substantially the center of both sides of the outer wall when the cap member 60 is attached to the holder member 4, as shown in FIG. In addition, a grip portion 61 that is gripped by a finger when being removed is formed. Also,
A pair of locking grooves 62 for locking a pair of locking projections 45 formed on the peripheral wall 38 is provided on both inner wall surfaces of the cap member 60. Each locking groove 6 of the cap member 60
The cap member 60 is attached to the peripheral wall 38 by being locked by the locking projections 45 of the peripheral wall 38, thereby protecting the stamped surface of the stamp material 3 held at the lower end of the peripheral wall 38 via the cap member 60. Is what is done.

Also, as shown in FIG.
Has four recesses 28 corresponding to the planar shape of the ink pack storage section 22 of the holder member 4 and is formed to have a size slightly larger than the inner dimension of the ink pack storage section 22. As shown in FIG.
In a state where the ink pack 6 is disposed inside the grip member 5,
Is moved downward with respect to the holder member 4, the thick paperboard 3
By the action of 7, the pressing force from the grip member 5 is applied substantially uniformly to the ink pack 6.

Thus, the ink pack 6 is sandwiched between the flat bottom surface 23 of the ink pack storage section 22 and the thick paperboard 37, and the ink pack 6 is cut by the cutting rib 25.
Is cut and opened. Then, as shown in FIG. 3, the ink pack 6 is crushed between the two flat surfaces, so that the ink in the ink pack 6 flows down almost completely from the ink supply holes 24 and flows downward. 3. As described above, by sandwiching the ink pack 6 between the two flat surfaces, the bottom surface 23 of the ink pack storage section 22 and the thick paperboard 37, the ink in the ink pack 6 is allowed to flow out without leaving any waste, and the printing material 3 is printed without waste. It becomes possible to supply ink.

That is, in the stamp unit 1 of this embodiment, the cutting ribs are formed by pressing the ink pack 6 stored in the ink pack storing section 22 against the bottom surface 23 which is the flat surface supporting the ink pack from above. Since it is opened at 25, the ratio of the ink remaining in the ink pack 6 can be reduced as compared with the conventional case where the ink pack supporting surface is an uneven surface which is not a flat surface. Therefore, the number of printings per ink pack can be increased.

In this embodiment, the thick paperboard 37 is used to press the ink pack 6 from above and below with a flat surface. The remaining ink rate in the ink pack 6 can be reduced as compared with the case. However, by using the thick paperboard 37, the ink is squeezed from the ink pack 6 on the upper and lower flat surfaces, so to say, the ratio of the ink remaining in the ink pack 6 can be further reduced.

Further, in the stamp unit 1 of the present embodiment, the cutting rib 25 for cutting the ink pack 6 is used.
Are provided slightly protruding from the bottom surface 23 in the ink supply hole 24. Therefore, it is easy to open the ink pack 6 with the cutting rib 25 when the grip member 5 and the holder member 4 are combined. Further, since the cutting rib 25 is provided in the ink supply hole 24, the cutting position of the ink pack 6 faces the ink supply hole 24. Therefore, the ink flowing out of the ink pack 6 quickly flows into the ink supply hole 24. Therefore, the time from when the ink pack 6 is opened to when the ink reaches the stamp material 3 is reduced. Note that the ink pack 6 can be opened by sandwiching the ink pack 6 between the bottom surface 23 of the ink pack storage section 22 and the thick paperboard 37 without providing the cutting rib 25, but the cutting rib 25 is provided. Thus, there is an advantage that the force required for cutting the ink pack 6 is small.

When the thick paper board 37 having the above-mentioned size is arranged above the ink pack 6, the thick paper board 3
Since the side edges of 7 can be easily deformed, the thick paperboard 37 can be easily arranged inside the holder member 4 and the thick paperboard 37 can be fixed at an arbitrary position inside the holder member 4. Becomes Based on this, it is possible to perform transportation or the like in a state where the ink pack 6 is arranged inside the holder member 4. Further, since the cardboard 37 has an ink absorbing ability, as described later, when the grip member 5 is moved downward to open the ink pack 6 in the holder member 4, It is possible to prevent the ink from leaking to the outside of the stamp unit 1 by absorbing the ink flowing upward.

Next, the stamp unit 1 of the present embodiment
Will be described. As shown in FIGS. 1 to 3, the stamp material 3 has an upper layer 71 made of a hard porous resin having a thickness of 3 mm, for example, polyvinyl formal having a porosity of about 90%, and a thickness made of the same material as the upper layer 71. An intermediate layer 72 made of a hard porous resin having a thickness of 2 mm and a lower layer 73 made of a soft porous resin made of a urethane-based resin having a porosity of about 65% in which a light energy absorbing material such as carbon black is dispersed. It is formed in a layer structure. The intermediate layer 72 and the lower layer 73 are fixed to each other by an adhesive applied in a lattice shape, but the upper layer 71 and the intermediate layer 7 are fixed to each other.
Reference numeral 2 denotes a free state where no artificial bonding is performed.

The use of the three-layer structure of the printing material 3 has the following advantages. That is, it is desired to increase the number of stamp prints that can be performed by a single ink supply using an ink pack, for example, so that 5,000 to 10,000 stamp prints can be performed. It is necessary to increase the thickness of the resin layer. But,
When the thickness of the hard porous resin layer is increased, excessive “burrs” or “sags” occur when the hard porous resin layer is cut into a predetermined shape. If these "burrs" and "who" are excessive,
Problems such as the inability to obtain a resin layer having a desired shape and the necessity of post-processing after cutting are caused. Therefore, in the present embodiment, the problem of “burrs” and “drowsiness” is achieved by securing the entire thickness of the hard porous resin layer while suppressing the thickness per layer by using a plurality of hard porous resin layers. This is to avoid the problem and to store more ink than desired in the hard porous resin layer.

Further, the stamp unit 1 of the present embodiment
Is provided with an ink replenishing hole 26 penetrating from the vicinity of the upper end thereof to the vicinity of a location facing the upper layer 71. Although the number of the ink supply holes 26 is four in the present embodiment, it is preferable that the number be changed according to the size of the holder member 4. In this manner, if the ink replenishing holes 26 are provided in a number corresponding to the size of the holder member 4, even if the ink stored in the stamp material 3 runs out, the user can easily and quickly. Ink can be replenished. In the present embodiment, the ink replenishing hole is provided near the periphery of the holder member 4 in order to facilitate the user's ink replenishment.

Further, the stamp unit 1 of the present embodiment
The holder member 4 is provided with the bottom surface 2 of the ink pack housing 22.
3, only one ink supply hole 24 is provided. However, it is preferable that the number of the ink supply holes 24 be changed according to the size of the holder member 4.
For example, as shown in FIG. 18, two ink supply holes 77 are provided for a holder member 76 larger than the holder member 4.
a, 77b may be provided. At this time, as shown in the drawing, the number of ink replenishment holes 26 may be increased (here, six). In this manner, by providing the ink supply holes in a number corresponding to the size of the holder portion, the ink can be quickly supplied to the peripheral portion of the printing material 3 even if the holder member is large in size. . Therefore, the stamp print density becomes substantially uniform over the entire surface, and the time required from the opening of the ink pack to the arrival of the ink on the printing material can be significantly reduced.

In the example shown in FIG. 18, a partition rib 78 having a height of several mm is provided at the center of the bottom surface 23 of the ink pack storage section 22. This partition rib 78
It has a role to divide the bottom surface 23 of the ink pack storage section 22 into two left and right areas. In addition, since the partition rib 78 is provided, a corresponding cut (not shown) is also provided in the grip member 5. As described above, since the partition rib 78 as a partition member is provided between the two ink supply holes 77a and 77b, for example, when the ink pack 6 is used for each of the ink supply holes 77a and 77b, each ink pack Can be prevented from deviating from the predetermined position. Further, when the height of the partition rib 78 is high, dividing the thick paperboard 37 into two prevents the partition rib 78 from hitting the thick paperboard 37 and crushing the ink pack 6.

In other words, if there is no partition rib 78, the ink packs 6 overlap and there is no ink pack on one ink supply hole side, and the significance of providing two ink supply holes may be lost. By providing the partition rib 78, the movement of the ink pack in the ink pack storage section 22 can be suppressed. In the example of FIG. 18, when the partition ribs 78 are provided, it is necessary to arrange the ink pack 6 for each of the ink supply holes 77a and 77b, but if the partition ribs 78 are not provided. May be provided with only one large ink pack.

To manufacture the stamp unit 1 of the present embodiment, first, the holder member 4 is set at a predetermined plate making position of a stamp manufacturing apparatus (not shown). At this time, the holder member 4 is set at a predetermined plate making position of the stamp manufacturing apparatus based on the cam action between the inclined surface of the inclined groove 43 formed in the lower holder portion 31 and the positioning member of the positioning mechanism. Further, the size of the holder member 4 is specified by cooperation of each detection groove 44 and a groove sensor provided in the positioning mechanism.

Then, characters and images are printed on the transparent film via the thermal head and the transfer ribbon while the roll-shaped transparent film is conveyed in the stamp manufacturing apparatus, and a positive original is created. Further, the holder member 4 is set with a transparent acrylic plate interposed therebetween so that the positive document and the lower layer of the printing material 3 face each other. In this state, when the xenon tube emits light, the light is applied to the lower layer 73 of the printing material 3 through the positive document. As a result, only a part of the lower layer 73 irradiated with light corresponding to the transparent portion of the document is melted by the heat-generating action of the light absorbing material, then solidified and sealed. On the other hand, the lower layer 73 of the portion of the stamp material 3 that has not been melted and solidified remains as it corresponds to the characters of the document. As a result, a stamp in which a seal portion and a non-seal portion are mixed is formed on the lower surface of the stamp material 3.

After the plate making of the stamp material 3 is completed, the upper skirt 13
The coil portion of the torsion spring 16 is positioned on the positioning projection 18 in advance on both end surfaces of the torsion spring 16.
The holder member 4 is inserted from below into the insertion hole 10 of the skirt member 12 having one end locked by the spring locking portion 17. At this time, the inclined protrusions 35 formed on both end surfaces of the peripheral wall 32 of the upper holder portion 30 in the holder member 4
The other end of the torsion spring 16 is slid upward in the vertical groove 19 of the skirt member 2 and the other end of the torsion spring 16 is moved to the lower end of each of the inclination protrusions 35 at the time when the inclined protrusion 35 has passed over the other end of the torsion spring 16 according to its wedge shape. Locked. In this state, the holder member 4
Are urged upward by the biasing force of the torsion spring 16 in the skirt member 2 and can slide the holder member 4 downward against the biasing force of the torsion spring 16.

After assembling the holder member 4 and the skirt member 2 as described above, the ink pack 6 is stored in the ink pack storage section 22 and the thick paperboard 3 is placed on the ink pack 6.
After the 7 is arranged, the insertion portion 51 of the grip member 5 is inserted into the peripheral wall 32 of the holder member 4 (the state shown in FIG. 2).
As described above, when the grip member 5 is further pressed while the insertion portion 51 is inserted into the peripheral wall 32, the ink pack 6 in the holder member 4 is pinched between the cardboard 37 and the cutting rib 25. To go. At this time, the pressing force applied to the ink pack 6 is substantially uniformly applied to the ink pack 6 based on the action of the cardboard 37. Accordingly, the ink pack 6 is broken and opened at a position where the ink pack 6 comes into contact with the cutting rib 25, whereby the ink pack 6 is opened at a substantially central position corresponding to the formation position of the cutting rib 25, and the ink pack 6 flows out of the ink pack 6 The ink can be dispersed substantially uniformly around the cutting rib 25. Also, the cardboard 37
Has the ink absorbing ability, so as described above, when the grip member 5 is moved downward to open the ink pack 6 in the holder member 4, the ink flows out of the ink pack 6 to the upper side thereof. It is possible to prevent the ink from leaking out of the stamp unit 1 by absorbing the ink.

Further, when the ink pack 6 is opened by the cutting rib 25, the ink flows out at once, but the space formed between the peripheral wall 32 and the cutting rib 25 flows out of the ink pack 6. As a result, the ink can be prevented from leaking out of the holder member 4 even when the ink flows out at once when the ink pack 6 is opened.

The ink that has flowed out of the ink pack 6 is guided downward from the ink supply holes 24 formed around the cutting ribs 25, and temporarily accumulates on the stamp material 3 (the state shown in FIG. 3). Over a period of time.
At this time, since the ink supply holes 24 are formed around the cutting ribs 25 and the support columns 27 separated from each other are provided below the ink supply holes 24, the ink from the ink pack 6 can be used for the printing material 3. Can be uniformly impregnated over the entire surface.

When the ink pack 6 is opened by moving the grip member 5 downward as described above, the rib locking groove 54 formed at the lower end of each rib 53 of the grip member 5 is in contact with the holder member. The holder member 4 and the grip member 5 are integrally connected to each other by fitting into the respective concave portions 33 formed in the peripheral wall 32 of the holder 4. Therefore, when the stamp material 3 is impregnated with the ink as described above and then stamp printing of characters or the like is performed according to the stamp formed on the stamp material 3, the grip member 5 and the holder member 4 move integrally. Stamp printing can be performed more.

When the amount of ink impregnated in the stamp material 3 becomes small and it becomes impossible to perform stamp printing at an appropriate density, the grip member 5 is removed from the holder member 4 and the thick paperboard 37 and the ink disappear. The stamp printing is restarted by removing the bag-shaped pack of the ink pack 6 from the holder member 4 and arranging a new ink pack 6 filled with ink in the holder 4 and performing the same operation as described above. Can be. Further, without removing the ink pack 6 and the thick paperboard 37, the ink replenishing holes 26 formed in one inner wall surface of the peripheral wall 32 of the holder member 4 can be formed.
It is also possible to replenish the ink from and restart stamp printing.

As described above, in the stamp unit 1 according to the present embodiment, when ink is supplied to the stamp material 3, the grip member 5 is pressed downward with the ink pack 6 disposed inside the holder member 4. By doing so, the ink pack 6 in the holder member 4 is pressed between the thick paperboard 37 and the cutting rib 25 and is opened. Thus, the ink in the ink pack 6 flows downward from the ink supply hole 24 and is supplied to the stamp material 3. in this way,
The ink can be easily supplied to the stamp material 3 with one touch.

Further, it is necessary to supply ink to the printing material 3 due to the fact that the amount of ink impregnated in the printing material 3 is reduced by repeating the stamp printing of the text and the like and the density of the printing characters and the like is reduced. In such a case, stamp printing can be restarted by replenishing ink by a simple operation of simply replacing a bag-shaped pack that has run out of ink with a new ink pack 6.

Further, since the cutting rib 25 which comes into contact with the ink pack 6 and the ink supply hole 24 for supplying the ink to the stamp material 3 are formed, the ink pack 6 can be easily and quickly opened by the cutting rib 25. In addition, the ink flowing out of the ink pack 6 can be rapidly impregnated into the stamp material 3 through the ink supply holes 24.

The ink flowing out of the ink pack 6 is supplied to the ink supply holes 24 formed around the cutting ribs 25.
The ink supply hole 24 is formed around the cutting rib 25 and is provided below the ink supply hole 24 with support columns 27 spaced apart from each other. Therefore, the ink from the ink pack 6 is uniformly dispersed over the entire bottom of the holder member 4, whereby the ink can be uniformly impregnated over the entire printing material 3.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various improvements and modifications can be made without departing from the gist of the present invention. It is. For example, in the stamp unit 1 of the present embodiment, the stamp material 3 is composed of a total of three hard porous resin layers and one soft porous resin layer, but three or more hard porous resin layers are provided. The stamping material 3 may have four or more layers. In addition, the shape and arrangement of the ink supply holes can be appropriately changed.

[0062]

As described above, according to the stamp unit of the first aspect, the ink pack accommodated in the ink pack accommodating portion is opened by being pressed against the ink pack supporting flat surface from above. Therefore, the ratio of the ink remaining in the ink pack can be reduced as compared with the case where the ink pack support surface is an uneven surface which is not a flat surface. Therefore, the number of times of printing per ink pack can be increased. That is, since substantially the entire amount of the ink contained in the ink pack can be given to the porous resin layer as the stamp material, the predetermined number of times of stamp printing that is scheduled by one ink pack can be substantially realized. .

According to the stamp unit of the present invention, since the ink pack is pressed by the flat member from above, the ink pack is pressed from above and below by a flat surface, and the ink is squeezed on the upper and lower flat surfaces. That is, the ratio of the ink remaining in the ink pack can be further reduced.

According to the stamp unit of the third aspect, the ink pack is pressed on the flat surface from above and below by a simple operation of pressing the grip member, and the ratio of the ink remaining in the ink pack is further reduced. Can be done.

According to the stamp unit of the fourth aspect, since the cutting means for cutting the ink pack is provided so as to protrude from the flat surface of the ink pack support, opening of the ink pack becomes easy. Further, since the cutting means is provided in the ink supply hole, the cutting position of the ink pack is opposed to the ink supply hole, and the ink quickly flows into the ink supply hole. Therefore, the time until the ink reaches the printing material can be reduced.

Further, according to the stamp unit of the present invention, since the ink supply holes are provided in a number corresponding to the size of the holder portion, even if the holder member is large in size, the peripheral edge of the printing material is particularly preferable. The ink can be quickly supplied to the part. Therefore, the stamp printing density becomes uniform over the entire surface, and the time required from the opening of the ink pack to the arrival of the ink on the printing material can be significantly reduced.

According to the stamp unit of the present invention, since the partition member is provided between the plurality of ink supply holes, for example, when the ink pack is used for each ink supply hole, each ink pack is used. Can be prevented from deviating from the predetermined position.

[Brief description of the drawings]

FIG. 1 is an overall exploded perspective view of a stamp unit according to an embodiment of the present invention.

FIG. 2 is a side sectional view of the stamp unit in FIG. 1 when an ink pack is not opened.

FIG. 3 is a side sectional view of the stamp unit of FIG. 1 immediately after opening an ink pack.

FIG. 4 is a side view of the skirt member shown in FIG. 1;

FIG. 5 is an end view of the skirt member shown in FIG. 1;

FIG. 6 is a side sectional view of the skirt member shown in FIG. 1;

FIG. 7 is a perspective view of the holder member shown in FIG. 1;

FIG. 8 is a side view of the holder member shown in FIG.

FIG. 9 is a side sectional view of the holder member shown in FIG. 1;

FIG. 10 is a plan view of the holder member shown in FIG. 1;

FIG. 11 is a bottom view of the holder member shown in FIG. 1;

FIG. 12 is a side view of the grip member shown in FIG. 1;

FIG. 13 is a bottom view of the grip member shown in FIG. 1;

FIG. 14 is a sectional view of the grip member shown in FIG. 1;

FIG. 15 is a side view of the cap member shown in FIG. 1;

FIG. 16 is a side sectional view of the cap member shown in FIG. 1;

FIG. 17 is a plan view of the cardboard shown in FIG. 1;

18 is a plan view showing another example of the holder member shown in FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 stamp unit 2 skirt member 3 printing material 4 holder member 5 grip member 6 ink pack 22 ink pack storage section 23 bottom surface 24 ink supply hole 25 cutting rib 26 ink refill hole 27 support column 37 thick paperboard 77a, 77b ink supply hole 78 partition rib

Claims (6)

[Claims] 1. A stamp unit in which a stamping material having a porous resin layer containing a light energy absorbing substance is held by a holder, wherein the holder has an ink supply hole toward the porous resin layer. The ink pack storage unit has an ink pack storage unit having a flat surface supporting the pack as a bottom surface, and the ink pack stored in the ink pack storage unit is opened by being pressed against the flat surface of the ink pack support from above. A stamp unit characterized by being configured as follows. 2. The stamp unit according to claim 1, wherein the ink pack stored in the ink pack storage section is opened by being pressed by a flat member from above. . 3. A skirt member, a holder member slidable up and down in the skirt member and holding a stamp material at a lower end, and a grip arranged above the holder member to move the holder member downward. In the stamp unit having a member, the holder portion has an ink pack storage portion having an ink pack support flat surface having an ink supply hole as a bottom surface, and the ink pack stored in the ink pack storage portion is A stamp unit configured to be opened by being pressed between a flat member that moves downward by pressing down on the grip member and the flat surface of the ink pack support. 4. The ink pack according to claim 1, wherein a cutting means for cutting the ink pack is provided in the ink supply hole so as to protrude from the flat surface of the ink pack support. The stamp unit according to the item. 5. The stamp unit according to claim 1, wherein the number of the ink supply holes is provided in accordance with the size of the holder. 6. The stamp unit according to claim 5, wherein a plurality of the ink supply holes are provided, and a partition member is provided between the plurality of the ink supply holes.