JPH08108604A - Seal - Google Patents

Abstract

PURPOSE: To provide a seal which can solves simultaneously a problem that a printing body is turned in relation to a holder, and a problem that when excessive pressing force is applied to paper at the time of sealing, the printing body is pressurized, and ink infiltrated into the printing body is streamed out excessively, print of a seal is blotted, and a clear print of the seal is not obtained. CONSTITUTION: The rear of a printing body 1 comprising a porous rubber sealing material having an open cell is made into an uneven state, and in a printing body holder 2 holding the printing body 1, a small projection fitting in a recessed part 4 of the rear of the printing body 1 is provided on a seat 3 to which the rear of the printing body 1 abuts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stamp provided with a printing body capable of being impregnated with ink, which is made of a porous rubber stamp material having open cells such as sponge rubber.

[0002]

2. Description of the Related Art In a stamp having a print body mounted on a holder, the print body may rotate with respect to the holder, which causes a problem that a direction display of an outer case and a print direction of the print body are deviated. In order to solve such a problem, conventionally, as shown in Japanese Utility Model Publication No. 2-43745, a protrusion having a sharp tip is provided in a print body storage portion, and the protrusion is hard to be inserted into the print body. A stamp that is configured to prevent the rotation of the printing body has been proposed.

[0003]

By the way, in this type of printing, the problem that the printing body rotates as described above and the printing body is crushed and impregnated when an excessive pressing force is applied at the time of marking. There is also a problem that the ink that is flowing out flows out excessively and the imprint bleeds and a clear imprint cannot be obtained. Then, this invention aims at provision of the novel stamp which can solve such a problem simultaneously.

[0004]

In order to achieve the above-mentioned object, the stamp of the present invention has a printing body 1 made of a porous rubber stamp material having open cells, the back surface of which is uneven, and the printing body 1
In the print body holder 2 that accommodates the print body 1, a small projection that fits into the recess 4 on the back surface of the print body 1 is provided in the receiving seat 3 with which the back surface of the print body 1 abuts.

The small protrusions may be rectangular ribs 5 or trapezoidal ribs 6 or tapered ribs 7.

[0006]

The rotation of the print body 1 is prevented by making the back surface of the print body 1 uneven and fitting the small projections provided in the print body holder 2 into the recesses 4. Further, by making the back surface of the printing body 1 uneven, when the excessive pressing force is applied, the convex portion 8 of the back surface exerts an appropriate cushioning property to prevent the printing body 1 from being crushed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The illustrated embodiment will be described below. First, FIGS. 1 to 4 show a first embodiment. Sign 1
Is a circular printing body made of a porous rubber stamp material having open cells, and the printing body 1 is provided with concave portions 4 and convex portions 8 by forming grooves in a lattice pattern on its back surface. Although the shape of the concave portions 4 and the convex portions 8 is arbitrary, the proportion of the convex portions 8 on the back surface is preferably 15 to 30%.
The cross-sectional area of 0.12 to 1.13 mm ² is desirable. Next, reference numeral 2 is a printed body holder, and this printed body holder 2 has a printed body storage hole portion 9 into which the printed body 1 is fitted in a state in which the printing surface is exposed, and the inner diameter is slightly reduced in the back. The ink storage member storage hole portion 10 is provided so as to communicate with each other, and the print body storage hole portion 9 and the ink storage member storage hole portion 10 are provided.
Seat 3 with which the peripheral edge of the back surface of the printing body 1 abuts on the stepped surface
That is, a plurality of small protrusions, that is, a rectangular columnar rib 5 is provided at a required position in the circumferential direction of the seat 3. The location where the rib 5 having the rectangular column shape is provided needs to coincide with the concave portion 4 on the back surface of the print body 1 when the print body 1 is fitted into the print body storage hole 9 in the correct direction. The rectangular rib 5 and the concave portion 4 and the convex portion 8 provided on the back surface of the above-mentioned printing body 1 are exaggerated in the drawing to a large extent, but they are actually smaller. Print body holder 2
Of course, after the ink occlusion body 11 is fitted in the ink occlusion body storage hole portion 10, the printing body 1 is fitted in the printing body storage hole portion 9, and the ink occlusion body 11 is attached to the back surface of the printing body 1. It is possible to supply ink from the ink occlusion body 11 to the printing body 1 by bringing the front surface of the printing medium into contact with the front surface of the printing body 1, and a rectangular columnar rib provided on the receiving seat 3 with respect to the concave portion 4 at the peripheral end portion of the back surface of the printing body 1. 5 is inserted. A metal cover 12 having an opening for exposing the printing surface of the print body 1 is fitted around the outer periphery of the front end of the print body holder 2 to prevent the print body 1 from coming off.

The printed body holder 2 to which the above-mentioned printed body 1 is attached is used by being mounted in a case 13 as shown in FIG. 4, for example. The case 13 comprises a front shaft 14, a grip shaft 15, and a slidable hood 16, and a cap (not shown) is fitted on the outer peripheral portion of the front end of the front shaft 14. The printed body holder 2 is inserted into and fixed to the inside of the front shaft 14 by covering the outer periphery of the front end thereof with a hood 16, and a coil spring 17 is interposed between the inner surface step of the front shaft 14 and the hood 16. ing. When stamping, hood 16
With the tip of the gripping shaft 15 in contact with the paper surface (not shown)
Press. Grip shaft 15, front shaft 14, and print body holder 2
And the coil spring 17 are integrally lowered while compressing the coil spring 17, and the hood 16 is relatively raised with respect to the print body holder 2, so that the marking surface 18 of the printing body 1 comes into contact with the paper surface to perform marking. . The structure of the case 13 is not limited to this embodiment, but may be any structure.

Next, FIGS. 5 to 7 show a second embodiment. Since the structures of the printing body 1 and the case 13 are the same as those of the first embodiment, the description thereof will be omitted and only different points will be described. In this embodiment, the small projection provided on the seat 3 of the print body holder 2 is a rib 6 having a trapezoidal cross section.

FIGS. 8 to 10 show a third embodiment. Since the structures of the printing body 1 and the case 13 are also the same as those in the first embodiment, the description thereof will be omitted and only different points will be described. In this embodiment, the seat 3 of the print body holder 2 is used.
The small protrusions provided on the above are taper-shaped ribs 7.

[0011]

The present invention is as described above, and the small projection provided on the seat 3 of the print body holder 2 is fitted into the concave portion 4 provided on the back surface of the print body 1 to print the print body holder 2. 1 can be prevented from rotating and the deviation between the direction of the case and the printing direction on the printing surface of the printing body 1 can be eliminated, and the convex portion 8 provided on the back surface of the printing body 1 can prevent excessive movement. This has the effect of preventing the print body 1 from being crushed when a pressing force is applied, avoiding an excessive outflow of ink, and obtaining a clear imprint without bleeding. In particular,
As described in the above embodiment, if the ratio of the convex portions 8 on the back surface of the printing body 1 is set to 15 to 30% and the sectional area of each convex portion 8 is set to 0.12 to 1.13 mm ² , The cushioning property of the convex portion 8 is optimized to obtain a suitable impression of printing, and the excess ink is prevented from flowing out due to the crushing of the printing body 1 when an excessive pressing force is applied, which is beautiful and clear. The imprint is surely obtained. Further, when the small projection provided on the receiving seat 3 of the print body holder 2 is a rib 6 having a trapezoidal cross section as described in claim 2, fitting into the recess 4 on the back surface of the print body 1 is facilitated and the projection 8 is formed. There is no need to push it by mistake, and since the slopes on both sides contact the edges on both sides of the concave portion 4, it is possible to eliminate the backlash in the circumferential direction of the printing body 1. Further, if the small protrusion provided on the seat 3 of the print body holder 2 is formed into a tapered rib 7, the bottom of the recess 4 on the back surface of the print body 1 abuts on the taper. It is possible to absorb the variation in the height of the character 1 and to centrifuge the printing body 1 to align the center of the printing body holder 2 with the center of the printing body 1.

[Brief description of drawings]

FIG. 1 is a perspective view showing a back surface of a print body and a part of a print body holder according to a first embodiment.

FIG. 2 is a perspective view showing the surface of the printing body of the first embodiment.

FIG. 3 is a plan view showing a print body storage hole portion of the print body holder of the first embodiment.

FIG. 4 is a sectional view showing the overall structure of a stamp according to the first embodiment.

FIG. 5 is a perspective view showing a back surface of a printed body and a part of a printed body holder according to a second embodiment.

FIG. 6 is a plan view showing a print body storage hole portion of the print body holder of the second embodiment.

FIG. 7 is a sectional view showing the overall structure of a stamp according to a second embodiment.

FIG. 8 is a perspective view showing a back surface of a print body and a part of a print body holder according to a third embodiment.

FIG. 9 is a plan view showing a print body storage hole portion of a print body holder according to a third embodiment.

FIG. 10 is a sectional view showing the overall structure of a stamp according to a third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Printed body 2 Printed body holder 3 Receiving seat 4 Recessed portion 5 Square rib 5 Ribbon with a trapezoidal cross section 7 Tapered rib 8 Convex portion 9 Printed material storage hole 10 Ink storage material storage hole 11 Ink storage material 12 Cover 13 Case 14 Tip Shaft 15 Grip Shaft 16 Hood 17 Coil Spring 18 Stamp Face

Claims (3)

[Claims] 1. A backing surface of a printing body 1 made of a porous rubber stamp material having open cells has an uneven shape, and a receiving body 3 with which the back surface of the printing body 1 abuts in a printing body holder 2 for accommodating the printing body 1. A stamp having a small protrusion fitted into a recess 4 on the back surface of the printing body 1. 2. The stamp according to claim 1, wherein the small protrusion is a square columnar rib 5 or a trapezoidal rib 6 in cross section. 3. The stamp according to claim 1, wherein the small protrusion is a tapered rib 7.