JPH07314872A - Stamping unit - Google Patents

Abstract

PURPOSE:To exchange easily a part of a stamping unit to be exchanged by providing the stamping unit capable of being continuously used at a low cost by a method wherein a new impregnated material is prepared by exchanging the one part of the stamping unit. CONSTITUTION:In a stamping unit having a holding member 2 and a stamping member 3 wherein a printing face part 4 in which an ink material impregnated with ink is covered by heat sensitive stencil paper 28 is provided on its lower surface and it is fitted to the holding member 2, a plurality of engaging holes 14a formed under the holding member 2, and a plurality of engaging claws 36 which are provided above the stamping member 3 and engaged elastically with respective engaging holes 14a, are provided. The holding member 2 can be attached to mutually detachably from the stamping member 3 via respective engaging holes 14a and respective engaging claws 36.

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 stamp member formed of a heat-sensitive stencil sheet and having a stamp face portion can be easily replaced.

[0002]

2. Description of the Related Art Heretofore, various stamps for printing a company name, an address, and various other character strings on a sheet of paper, the stamped surface portion of which is made of rubber, have been used.
Stamps of this type are expensive and take a long time from order to acquisition because they are usually made individually according to orders. On the other hand, conventionally, a heat-sensitive stencil plate that can be used for printing various patterns such as character strings, figures, and marks by perforating a desired pattern by irradiating infrared rays or using a thermal head and transmitting ink from the group of holes. Base paper has been put to practical use. The applicant of the present application discloses, in Japanese Utility Model Application Laid-Open No. 5-74833, a heat-sensitive stencil sheet mainly composed of the heat-sensitive stencil sheet and an impregnated body impregnated with ink, the stamp having a conventional stamp face made of rubber. We have proposed a heat-sensitive stencil plate suitable for making a stamp that replaces.

In this heat-sensitive stencil plate, an impregnated body impregnated with ink and a frame surrounding the impregnated body are bonded to a synthetic resin film, and the impregnated body and the surface of the frame are heat-sensitive. The stencil sheet is bonded. However, a film-like separator that can be taken out may be mounted between the impregnated body and the heat-sensitive stencil original plate. When the heat-sensitive stencil sheet is applied to a stamp, the heat-sensitive stencil sheet is adhered to the lower surface of the base of the stamp member having a gripping member via a cushioning material, and the heat-sensitive stencil sheet is irradiated with infrared rays or by a thermal head. If you punch a pattern such as a desired character string,
A stamp composed of a stamp member and a heat-sensitive stencil master plate, which is capable of printing a pattern such as the desired character string on a paper sheet many times, like a rubber stamp. To be

[0004]

However, in the stamp to which the heat-sensitive stencil original plate is applied, the heat-sensitive stencil original plate is formed on the lower surface of the base of the stamp member having the grip member via the cushion material. When the ink of the impregnated body provided on the stamp member is used up, a new stamp unit must be used, and each stamp unit becomes disposable and expensive. Also, if we tried to replace the part of the frame to which a new impregnation body containing ink was adhered, it would not be easy to remove or install it, and when replacing it not only soiled the hands but also soiled the surrounding area. There is also the risk of adding extra ink when using.

Therefore, an object of the present invention is to provide a stamp unit which can be continuously used at a low cost by replacing a part of the stamp unit with a new impregnated body. Moreover, it aims at providing the stamp unit which can replace a part of stamp unit to replace easily.

[0006]

A stamp unit of the present invention comprises a gripping member and a stamping member which is provided on the lower surface with a stamp face portion obtained by coating an ink body impregnated with ink with a heat-sensitive stencil sheet and is attached to the gripping member. In the stamp unit having, a plurality of engaging holes formed in the lower portion of the grip member and a plurality of locking claws provided in the upper portion of the stamp member and elastically engaged with the engaging holes are provided. The gripping member and the stamp member are detachable from each other through the engagement holes and the locking claws. Further, preferably, the stamp unit of the present invention is connected to the gripping member. And a skirt member that is formed at the end edge of the insertion hole and that is formed with an insertion hole that inserts through each of the engagement holes from above and that is movable up and down while surrounding the outer periphery of the stamp member. When pulling the gripping member upward with the skirt member fixed, the engagement between the engagement holes and the engagement claws is released by abutting the engagement claws and elastically deforming the engagement claws. And a disengagement piece that engages.

Preferably, the stamp unit of the present invention has a grip member, and a stamp member provided on the lower surface with a stamp face portion in which an ink body impregnated with ink is covered with a heat-sensitive stencil sheet and attached to the grip member. In the stamp unit, an engaging plate connected to a lower portion of the gripping member, and a pair of locking claws formed on the upper portion of the stamp member and elastically engaging with an edge of the engaging plate, Each gripping member and stamp member can be attached to and detached from each other via the engaging plate and each locking claw. Further, preferably, the stamp unit of the present invention is elastically connected to the gripping member via a compression spring, and is formed in the skirt member and the skirt member which is movable up and down while surrounding the outer periphery of the stamp member, When the gripping member is pulled upward, it is provided with an engagement plate and an engagement releasing portion for releasing the engagement between the engagement claws by abutting the respective engagement claws and elastically deforming the respective engagement claws. Is.

[0008]

In the stamp unit of the present invention, a large number of perforations having a desired pattern are formed in advance on the heat-sensitive stencil sheet forming the printing surface portion, and when the grip member is grasped and the printing surface portion is pressed against the surface of the paper, Since the ink of the above is exuded from a large number of perforations, a desired pattern is printed on the surface of the paper, and the locking claws provided on the top of the stamp member elastically deform and are formed on the bottom of the gripping member. The stamp member is integrally coupled with the gripping member by engaging with the engaging hole. On the other hand, when the locking claw also elastically deforms, the locking claw disengages from the engagement hole and the stamp member is separated from the gripping member, so that the stamp member can be easily attached and detached. Further, in the stamp unit of the present invention, the engagement hole formed in the lower portion of the grip member is inserted into the insertion hole formed in the skirt portion surrounding the outer periphery of the stamp member, and the engagement hole is formed inside the skirt member. When the gripping member is pulled up while the skirt member is fixed while the locking claws of the stamp member are engaged, the disengagement pieces formed on the edges of the insertion holes contact the locking claws. By contacting and elastically deforming each locking claw, the engagement between each engagement hole and each locking claw is released, and the stamp member is separated from the gripping member, so that the stamp member can be easily removed. .

Further, in the stamp unit of the present invention, a large number of perforations having a desired pattern are formed in advance on the heat-sensitive stencil sheet forming the printing surface portion, and when the holding member is gripped and the printing surface portion is pressed against the surface of the paper, Since the ink in the ink body oozes out from a large number of perforations, the desired pattern is printed on the surface of the paper, and the locking claws provided on the top of the stamp member cause elastic deformation, and The stamp member is integrally coupled with the gripping member by engaging with the formed engagement plate. On the other hand, similarly, when the locking claws are elastically deformed, the engaging plate is disengaged from the locking claws and the stamp member is separated from the gripping member, so that the stamp member can be easily attached and detached. Further, in the stamp unit of the present invention, the grip member elastically connected to the skirt member surrounding the outer circumference of the stamp member via the compression spring is stamped on the engaging plate connected to the lower part of the grip member inside the skirt member. When the locking claws of the member are engaged, when the skirt member is fixed and pulled up, the disengagement portions formed on the skirt member come into contact with the locking claws and elastically move the locking claws. By deforming, the engagement between the engaging plate and each locking claw is released, and the stamp member is separated from the gripping member, so that the stamp member can be easily removed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a stamp unit according to the present embodiment, FIG. 2 is an exploded perspective view of the stamp unit, and FIGS. 3 and 4 are a vertical sectional front view and a transverse side view, respectively. The stamp unit 1 includes a gripping member 2 for gripping by hand, a stamp member 3 fixedly connected to the gripping member 2, and a stamp member 3.
It is composed of a skirt member 6 covering the outer peripheral side and a protective cap 7 detachably attached to the stamp member 3. The gripping member 2 is composed of a rectangular parallelepiped hollow body made of a metal or a synthetic resin material and having an open lower end. At the lower end of the rear wall 13, a pair of engaging windows 14 projecting downward are provided on the left and right. A guide groove 15 is formed in the lower portion of the front wall 12 and the rear wall 13 of the grip member 2, an engagement recess 16 is formed in the front wall 12, and an engagement hole 18 is formed in the left side wall 17. A spring support portion 20 is formed in the center of the lower surface of the upper wall 19 inside the grip member 2.

The stamp member 3 comprises a stamp portion main body 4
And a grip part which is inserted and fixed from below, and which covers about the upper two-thirds part on the outer peripheral side of the stamp part body 4 and which engages with the four engagement windows 14 of the grip member 2. The outer periphery holding member 5 is fixed to the member 2. The stamp body 4 has a shallow recess 25 on the lower surface side.
A rectangular parallelepiped hollow synthetic resin base member 26,
An impregnation body 27 (which corresponds to an ink body), which is an impregnation body 27 mounted in the recess 25 of the base member 26 and impregnated with an oil-based ink, and a lower surface of the impregnation body 27 and an outer peripheral side of the base member 26. The heat-sensitive stencil sheet 28 is adhered to the outer peripheral surface of the base member 26 with a covering adhesive 29. still,
The impregnated body 27 may be bonded to the recess 25 of the base member 26 with an adhesive or the like.

The base member 26 is made of a synthetic resin material (for example, vinyl chloride, polypropylene, polyethylene, polyacetal, polyethylene terephthalate, etc.) or a metal material having excellent oil resistance because it comes into contact with oil-based ink, or a metal material. By mounting the impregnation body 27 in the recess 25 of 26, it is possible to prevent the displacement of the impregnation body 27 and prevent the outflow of ink from the impregnation body 27. The impregnated body 27
Is made of an elastic foam or non-woven fabric of synthetic resin material (for example, polyethylene, polypropylene, polyethylene terephthalate, polyurethane, acrylonitrile butadiene rubber, etc.). The impregnating body 27 is saturated with oil-based ink. Therefore, when pressure is applied to the impregnated body 27, the ink is made to seep out.

Here, FIG. 6 is an enlarged cross-sectional view of the heat-sensitive stencil sheet of the stamp unit according to the present embodiment. The heat-sensitive stencil sheet 28 has a thermoplastic film 30 and a porous support 31. , And an adhesive layer 32 for adhering them. The thermoplastic film 30 has a thickness of 1 to
4 μm, preferably 2 μm thermoplastic synthetic resin material (eg polyethylene terephthalate, polypropylene,
Vinylidene chloride-vinyl chloride copolymer). If the thickness is less than 1 μm, it is not practical because the manufacturing cost is high, the strength is weak and it is not practical, and if the thickness is 4 μm or more, the rated output is about 50 mJ / mm ² because it is too thick. You cannot drill with the thermal head. The porous support 31 is mainly made of natural fibers (eg, Manila hemp, kozo, mitsumata, etc.), synthetic fibers (eg, polyethylene terephthalate, polyvinyl alcohol, polyacrylonitrile, etc.), or semi-synthetic fibers such as rayon. It is made of porous thin paper.

FIG. 5 is an enlarged vertical sectional front view of the stamp body, and FIG. 7 is a perspective view for explaining a method of manufacturing the stamp body. As shown in these, the base member 26
Inverted state, the impregnating body 27 is mounted in the recess 25, and then the impregnating body 27 is impregnated with the oil-based ink. The heat-sensitive stencil sheet 28 so that the impregnated body 2
The heat-sensitive stencil sheet 28 is brought into close contact with the surface of 7, and the outer peripheral side portion of the heat-sensitive stencil sheet 28 is tightly folded and adhered to the outer circumferential surface of the base member 26 with the adhesive layer 29, thereby to The stamp portion main body 4 shown in FIG. A portion of the heat-sensitive stencil sheet 28 that is in close contact with the surface of the impregnated body 27 (the lower surface in FIG. 5) constitutes a stamp surface portion 33. As described above, since the outer peripheral side portion of the heat-sensitive stencil sheet 28 is adhered to the outer peripheral surface of the base member 26, the stamp surface portion 33 that covers almost the entire lower surface of the stamp member 3 can be formed. As a result, positioning when printing is simplified.

The outer peripheral portion of the heat-sensitive stencil sheet 28 is
In order to adhere to the outer peripheral surface of the base member 26, the heat-sensitive stencil sheet 2
The adhesive layer 29 may be formed in advance on the outer peripheral side portion of 8, or the adhesive layer 29 may be formed on the outer peripheral surface of the base member 26 in advance. The adhesive layer 29 may be formed in advance on both the outer peripheral side portion and the outer peripheral surface of the base member 26. As shown in FIGS. 2 to 4, the outer peripheral holding member 5 includes a peripheral wall portion 34 having a rectangular shape in a plan view to which the stamp portion main body 4 is adhered in an inner shape, and four engagement members provided below the gripping member 2. The upper wall portion 35 is provided with locking claws 36 corresponding to the aisles 14. Locking claw 3
In each of No. 6, a triangular protrusion is formed on the outside, and the lower slope of the protrusion is inclined upward.

The skirt member 6 is composed of an outer peripheral wall portion 40 having a rectangular shape in plan view into which the outer peripheral wall portion 34 of the outer peripheral holding member 5 is slidably fitted in the vertical direction, and an upper wall portion 41 at the upper end thereof. There is an upper wall portion 41 located above the upper wall portion 35 of the outer circumference holding member 5, and a gate-shaped portion that protrudes from the central portion of the upper wall portion 41 upward by a predetermined height and is inserted into the gripping member 2. Four
3 and a spring support portion 45 and the like projecting from the center of the upper end of the gate-shaped portion 43. Guide holes 44 are formed in the lower portions of the left and right wall portions of the gate-shaped portion 43 at positions corresponding to the guide holes 18 in the front-rear direction so as to penetrate the both wall portions. Then, the upper wall portion 41 of the skirt member 6
A pair of left and right rectangular holes 42 sandwiching the gate-shaped portion 43 is formed in the, and the rectangular holes 42 are formed with triangular protrusions 46 in the front and rear sides. Further, in order to attach / detach the protective cap 7 and to position the stamp face portion 33, the lower end portion of the central portion of the four faces of the outer peripheral wall 40 of the skirt member 6 is partially cut away.

Therefore, the foot portion 14 of the grasping member 2 is slidably inserted into the rectangular hole 42 from above in the vertical direction, and the projection 46 is fitted into the engaging window 14a of the foot portion 14. The spring support portion 45 of the skirt member 6 has a grip member 2
A compression spring 21 is attached so as to urge the grip member member 2 upward between the spring support portion 20 and the spring support portion 20. The locking claw 36 is engaged with the lower end of the engagement window 14a of the foot portion 14 inside the skirt member 6, and the compression spring 21
The gripping member 2 that is urged upward by is stopped. In addition, the lower end of the foot portion 14 is connected to the upper wall portion 3 of the outer peripheral holding member 5.
The outer peripheral holding member 5 is fixed to the gripping member 2 by bringing it into contact with the holding member 2.

By the way, the skirt member 6 is configured to be movable up and down over a first position shown in FIGS. 3 and 4, a second position shown in FIG. 9, and a third position shown in FIG. When the force is not applied to 2, the spring 21
It is in the state of position. That is, in the first position, the stamp face portion 33 of the stamp member 3 is positioned higher than the lower end of the skirt member 6, and in the second position, the stamp face portion 33 is located in the skirt member 6.
It is located at the same level as the lower end, and in the third position, the stamp face portion 33 is located below the lower end of the skirt member 6.
The stroke of the stamp face 33 from the first position to the second position is preferably set to about 5 mm.

The protective cap 7 is formed by the stamp body 4
The outer peripheral wall portion 48 is formed in the same shape as the outer peripheral wall 34 of the outer peripheral holding member 5 in a plan view, and the protective cap 7 is a skirt. The outer peripheral wall portion 40 of the member 6 is fitted in and supported. As shown in FIGS. 3 and 4, when the protective cap 7 is attached, the upper end of the protective cap 7 contacts the lower end of the outer peripheral wall 34, and a small gap is left between the protective cap 7 and the stamp face portion 33. It is supported by the frictional force between the outer peripheral surface of the outer peripheral wall portion 48 and the inner peripheral surface of the outer peripheral wall portion 40 of the skirt member 6. Therefore, even if the gripping member 2 is pushed downward with the protective cap 7 mounted, the gap is maintained by the contact between the upper end of the protective cap 7 and the lower end of the outer peripheral wall 34. No ink adheres to 7.

As shown in FIG. 10, for example, a large number of perforations (dot pattern perforations) having a pattern composed of a character string of "ABC" mirror characters and a six-fold rectangular frame surrounding the outer side of the character string are formed on the stamp face portion 33. ) Is formed by a thermal head of a thermal printer (not shown), and a stamp unit capable of printing a character string “ABC” that is a mirror image of the pattern of FIG. 10 and a six-fold rectangular frame is formed. Similar to a stamp with a rubber stamp, for example, about 1
The pattern can be printed over 000 times. Needless to say, it is possible to pierce by irradiating infrared rays instead of piercing with a thermal head.

When punching the heat-sensitive stencil sheet 28 which constitutes the stamp surface 33, the stamp unit 1 is set in a heating punching device equipped with a thermal head similar to the thermal head of a thermal printer (not shown). By inserting the guide bar (shown by the one-dot chain line in FIG. 8) of the heat punching device through the guide holes 18, 44, 44, the skirt member 6 is held at the third position to perform punching, and When not in use, a protective cap 7 is attached to hold the skirt member 6 in the first position as shown in FIGS. 3 and 4, and
At the time of printing, the protective cap 7 is removed, the skirt member 6 is held at the first position, and the skirt member 6 is positioned at the position to be printed on the front surface of the paper, so that the stamp surface portion 33 of the stamp member 3 is removed. After the positioning, the gripping member 2 is pressed downward to print as shown in FIG.

Next, the operation of the stamp unit 1 described above will be described. A large number of perforations having a desired pattern are preliminarily formed on the heat-sensitive stencil sheet 28 forming the printing surface portion 33. Then, at the time of printing, the protective cap 7 is removed, the stamp member 3 is held at the first position, and the skirt member 6 is set at the position to be printed on the surface of the paper. At this time, the stamp unit 1 is moved while looking at the printing position and the end of the stamp surface portion 33 through the notch at the lower end of the skirt member 6, and the stamp surface portion 33 is accurately positioned at the desired printing position. In this way, the printing surface 33 to be printed
When the gripping member 2 is pressed from above after the positioning is performed, the foot portion 14 pushes the upper wall portion 35 of the outer peripheral holding member 5 downward, and as a result, the stamp member 3 lowers its position, and The spring 21 contracts, the skirt member 6 rises to the second position, and printing is performed at the set desired position.

That is, the stamp face portion 3 is provided through the skirt member 6.
3 is positioned at a desired position on the surface of the sheet, and then the gripping member 2 is gripped and the gripping member 2 is pushed downward to move the stamp surface 3
3 is pressed against the surface of the paper, the impregnation body 27 causes the base member 26 to
Since the ink in the impregnated body 27 exudes from a large number of perforations by being crushed between the paper and the paper, the perforation pattern is printed on the surface of the paper. Then, after printing, when the pressing force applied to the gripping member 2 is released, the stamp member 3 is also raised and returned to the first position as the gripping member 2 is biased upward by the compression spring 21. By such a returning operation, the peeling of the paper from the printing surface portion 33 is promoted, and the thin paper can be printed neatly. However, when printing in a narrow frame on the surface of the paper, the skirt member 6 can be manually pressed.
Is held in the second position for printing. When not in use, the skirt member 6 is held in the first position by the biasing force of the spring 21, and the lower end of the skirt member 6 supports the entire stamp unit 1. At this time, since the stamp face portion 33 is located inside the skirt member 6, the stamp face portion 33 is protected by the skirt member 6.

By the way, when printing is performed a predetermined number of times, the ink impregnated in the impregnated body 27 is exhausted, and it is necessary to replace the impregnated body 27. To replace the impregnated body 27, not the impregnated body 27 itself but the stamp member 3 on which the impregnated body 27 is mounted is replaced. FIG. 11 is a view showing a replacement situation of the stamp member 3, and the stamp members 3 are attached in the order of the left figure, the central figure and the right figure in FIG. Therefore, when the stamp member 3 is removed, the stamp member 3 is in the first position, that is, the upper slope of the locking claw 36 formed on the outer peripheral holding member 5 is in contact with the protrusion 46 having the rectangular hole 42. Then, the upper wall portion 41 of the skirt member 6 is pressed, and the holding member 2
Pull up. Then, since the engagement window 14a at the lower end of the grip member 2 is engaged with the locking claw 36 at the lower end, when the grip member 2 is pulled upward, the locking claw 36 comes into contact with the protrusion 46 and moves upward. Is prevented from moving to. When it is further pulled up, it is distorted inward as shown in the central view of FIG. 11 by the force acting on the lower slope of the locking claw 36, the locking claw 36 disengages from the engagement window 14a, and the stamp member It is dropped and removed by its own weight of 3.

Next, the case where a new stamp member 3 provided with the impregnated body 27 sufficiently containing ink is attached will be described. First, as shown in the left diagram of FIG. 11, the stamp member 3 fitted with the protective cap 7 is placed with the protective cap 7 in contact with the floor surface, and the skirt member 6 is covered from above. Then, as shown in the central view of FIG. 11, when the lower end of the skirt member 6 is attached to the floor surface and the gripping member 2 is pressed downward against the force of the compression spring 21 urging upward, the foot portion 14 is pressed. Comes into contact with the upper slope of the locking claw 36 and further presses the grip member 2, whereby the locking claw 36 is distorted inward. Then, when the gripping member 2 is further pressed in a state where the locking claw 36 is distorted, the engagement window 14a of the foot portion 14 is located at the protruding portion of the locking claw 36, and along the lower slope of the locking claw 36. The distortion is eliminated, and the locking claw 36 is engaged with the engagement window 14 as shown in the right diagram of FIG. 11.

The first embodiment of the present invention has been described above. According to the stamp unit of the present embodiment, the impregnation body 27 is mounted when it is necessary to replace it with a new impregnation body 27 due to ink consumption. Since it can be done without directly touching the stamp member 3, the hands are not soiled with ink. Further, the stamp member 3 can be replaced only by pulling up or pressing the gripping member 2,
It can now be done easily and quickly. In addition, since the protective cap 7 and the stamp member 3 can be stored together, there is no possibility that ink will be attached to other objects and contaminated during storage.

Next, a second embodiment of the stamp unit of the present invention will be described. Here, FIG. 12 is a perspective view of the stamp unit of the present embodiment, and FIG. 13 is a partial perspective view. Similarly to the stamp unit of the first embodiment, the stamp unit of the present embodiment has a grip member 51 for gripping by hand, a stamp member 52 fixedly connected to the grip member 51, and an outer peripheral side of the stamp member 52. It comprises a skirt member 53 for covering and a protective cap 54 which is detachably attached to the stamp member 52. The gripping member 51 is composed of a rectangular parallelepiped grip portion 55 and a connecting rod 56 fixed to the grip portion 55 and further fixed to an engagement plate 57. The engagement plate 57 has a rectangular shape, the upper surface side of which is a flat surface, and the lower surface side of which is formed with an inclined end in the longitudinal direction.

As shown in the sectional view of FIG. 14, the stamp member 52 is composed of a stamp portion main body 58 and an outer peripheral holding member 59 that abuts when the protective cap 54 is attached. The stamp portion main body 58 has a rectangular parallelepiped hollow hollow synthetic resin base member 61 having a shallow recess 60 on the lower surface side, and a lower surface and a base member 61 of an impregnating body 62 mounted in the recess 60 of the base member 61. And a heat-sensitive stencil sheet 63 which is adhered to the outer peripheral surface of the base member 61 with an adhesive to cover the outer peripheral side thereof. Further, a locking claw 64 is formed on the upper side at the longitudinal end of the base member 61. The locking claw 64 has a strip shape, a triangular protrusion is formed inside the upper end, and the lower slope of the protrusion is inclined upward. Further, the skirt member 53 has a stamp member 58.
The stamp member 58 includes an outer peripheral wall portion 65 in which the stamp member 58 is slidably fitted in the vertical direction and an upper wall portion 66 at the upper end of the outer peripheral wall portion 65 with a wide distance therebetween. . The lower end of the central portion of the four surfaces of the outer peripheral wall 65 of the skirt member 53 is partially cut away. Also, the upper wall 6
A circular through hole 67 through which the connecting rod 56 penetrates is formed at the center of 6, and a recess 68 is formed at the central position at the corner in the longitudinal direction.

The stamp unit is formed by each of the above configurations. Specifically, the skirt member 53
The locking claw 64 of the stamp member 52 is fitted therein while being engaged with the engaging plate 57 of the gripping member 51, and the connecting rod 56 fixed to the upper surface of the engaging plate 57 includes the upper wall portion 66 of the skirt member 53. It is arranged through the through hole 67 formed in the. Further, the grip portion 55 above the connecting rod 56 has the skirt member 53.
A compression spring 69, one end of which is fixed to the upper wall portion 66, is urged upward. In addition, the protective cap 54 has an outer peripheral portion from below the stamp member 52.
It is formed so as to abut against 9 and fit into the base material portion 61 to protect the stamp face portion.

In the stamp unit of this embodiment having the above-mentioned structure, the stamp member is attached or detached as follows. Here, FIG. 14 shows a state of attachment, and FIG. 15 shows a state of removal. Each drawing shows a vertical side view of the stamp unit. First, the stamp member 52 is attached as shown in FIG. Specifically, as shown in FIG. 14A, the stamp cap 52 is placed on the floor while the protective cap 54 is fitted to the lower part of the stamp member 52, and is integrated with the gripping member 51 according to the longitudinal direction of the stamp member 52. Became a skirt member 6
5 is covered from above. Then, as shown in FIG. 14B, when the grip member 51 is pushed down with the lower end of the skirt member 65 also attached to the floor surface, the grip member 51 descends against the biasing force of the compression spring 69, and the engaging plate 57. The lower surface end portion abuts on the locking claw 64. Then, when the grip member 51 is further pressed, the end slope of the engagement plate 57 acts on the outside of the locking claw 64, and the locking claw 64 is expanded. Then, when it is pushed in by a predetermined amount and passes through the triangular protrusion portion of the locking claw 64, the strain is eliminated and the triangular protrusion meshes with the upper surface of the engagement plate 57, and the stamp member 52 is fixed as shown in FIG. .

Next, as shown in FIG. 15, the fixed stamp member 52 is removed. Specifically, FIG.
As shown in (a), the skirt member 65 is pushed downward so as to be pressed against the floor surface, and the gripping member is pulled upward. Then, the fixed stamp member 52 is lifted in the same manner as the grip member 51, and the locking claw 64 engaged with the engaging plate 57 is depressed 68 in the upper wall portion 66 of the skirt member 65.
To restrict the upward movement of the grip portion 51. Then, when the gripping member 51 is further pulled up, as shown in FIG.
As shown in (b), the corner portion of the engaging plate 57 acts on the lower slope of the locking claw 64 to push the locking claw 64 outward. Therefore, when the engagement plate 57 fits into the upper space 70 of the skirt member 53 formed by the recess 68, the locking claw 64 is disengaged from the engagement plate 57 and dropped to be removed.

As described above, in this embodiment, the locking claw 64 and the engaging plate 5 are provided.
Since the stamp member is attached by engaging 7 with each other, it is possible to easily attach and detach the stamp member. Further, since the locking claws 64 are made large, the engagement plate 57 can be strongly bitten and can be firmly fixed, so that stable printing can be performed.

Although one embodiment of the stamp unit of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, in the above embodiment, the locking claw is a triangular protrusion, but an inclined surface may be formed on the side of the engaging attachment portion, and the shape is not particularly limited as long as there is a relationship of engagement.

[0034]

According to the stamp unit of the invention described above, each gripping member and the stamp member are provided via the engaging hole in the lower part of the gripping member and the locking claw which is engaged by elastically deforming the engaging hole. Since it is possible to attach and detach with each other, it is possible to provide a stamp unit that can be used continuously at low cost by replacing the used impregnated body, and at the time of replacement, the replacement part of the stamp unit Can be easily replaced

[Brief description of drawings]

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

FIG. 2 is an exploded perspective view of the stamp unit according to the first embodiment.

FIG. 3 is a vertical cross-sectional front view of the stamp unit according to the first embodiment.

FIG. 4 is a vertical cross-sectional side view of the stamp unit according to the first embodiment.

FIG. 5 is an enlarged vertical sectional front view of a stamp portion main body of the stamp unit according to the first embodiment.

FIG. 6 is an enlarged sectional view of a heat-sensitive stencil sheet of the stamp unit according to the first embodiment.

FIG. 7 is a perspective view illustrating a method of manufacturing the stamp body according to the first embodiment.

FIG. 8 is a vertical cross-sectional front view of the stamp unit when the skirt member according to the first embodiment is in the third position.

FIG. 9 is a vertical sectional front view of the stamp unit when the skirt member according to the first embodiment is in the second position.

FIG. 10 is a diagram showing an example of a pattern for punching a stamp face portion of the stamp unit according to the first embodiment.

FIG. 11 is a cross-sectional view showing a replacement situation of the stamp member 3 according to the first embodiment.

FIG. 12 is a perspective view of a stamp unit according to a second embodiment of the present invention.

FIG. 13 is a partial perspective view of a stamp unit according to a second embodiment of the present invention.

FIG. 14 is a cross-sectional view showing how the stamp member 52 according to the second embodiment is attached.

FIG. 15 is a sectional view showing how the stamp member 52 according to the second embodiment is detached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 stamp unit 2, 51 gripping member 3, 52 stamp part 5, 59 outer peripheral holding member 6, 53 skirt member 7, 54 protective cap 21 spring 26, 61 base member 27, 62 impregnated body 28, 63 heat-sensitive stencil sheet 33 mark Face 69 Compression spring

Claims (4)

[Claims] 1. A stamp unit having a gripping member and a stamping member provided on the lower surface with a stamp face portion obtained by coating an ink body impregnated with ink with a heat-sensitive stencil sheet, the stamping unit being provided below the gripping member. A plurality of engagement holes formed, and a plurality of locking claws provided on the stamp member and elastically engaged with the engagement holes, wherein the gripping members and the stamp member are A stamp unit, wherein the stamp unit is detachable from each other through each engaging hole and each locking claw. 2. A skirt member which is connected to the grip member and which is inserted through the engagement holes from above and which is movable up and down while surrounding the outer periphery of the stamp member, and an edge of the insertion hole. When the gripping member is pulled up with the skirt member fixed, the engaging holes and the engaging holes are elastically deformed by contacting the engaging claws. The stamp unit according to claim 1, further comprising: an engagement releasing piece that releases engagement with the claw. 3. A stamp unit having a gripping member and a stamping member provided on the lower surface with a stamp face portion obtained by coating an ink body impregnated with ink with a heat-sensitive stencil sheet, the stamping unit being provided below the gripping member. And a pair of engaging claws that are formed on the stamp member and that are elastically engaged with the edges of the engaging plate, wherein the gripping members and the stamp member are the engaging plates. And a stamp unit that is detachable from each other via each locking claw. 4. A skirt member that is elastically connected to the gripping member via a compression spring and that can move up and down while surrounding the outer periphery of the stamp member; and a skirt member formed on the skirt member when pulling the gripping member upward. 4. An engagement releasing portion for releasing the engagement between the engagement plate and each locking claw by abutting on each locking claw and elastically deforming each locking claw. Stamp unit described.